Version 1.3.8

- added support for GDEQ042Z21 4.2" b/w/r 400x300 panel or Waveshare 4.2" V2 b/w/r board
- the Waveshare 4.2" V2 b/w/r board requires the shortened reset pulse
- added support for GDEW029I6FD 2.9" b/w 128x296 flexible board
- some fixes and improvement for the new style panel selection

README.md

@@ -72,6 +72,7 @@
 - GDEH029A1      2.9" b/w
 - GDEW029T5      2.9" b/w
 - GDEW029T5D     2.9" b/w
+- GDEW029I6FD    2.9" b/w flexible
 - GDEM029T94     2.9" b/w
 - GDEW029M06     2.9" b/w DES
 - GDEW029Z10     2.9" b/w/r
@@ -85,6 +86,7 @@
 - GDEW042T2      4.2" b/w
 - GDEW042M01     4.2" b/w DES
 - GDEW042Z15     4.2" b/w/r
+- GDEQ042Z21     4.2" b/w/r (Waveshare V2)
 - ACeP565        5.65" Waveshare 5.65" 7-color e-paper display 600x448
 - GDEW0583T7     5.83" b/w
 - GDEW0583T8     5.83" b/w 648x460
@@ -105,7 +107,12 @@
 - promotion panels from suppliers are welcome, to add support to GxEPD2
 - donation panels from users are welcome, to add support to GxEPD2
 
-### Version 1.3.7
+### Version 1.3.8
+- added support for GDEQ042Z21 4.2" b/w/r 400x300 panel or Waveshare 4.2" V2 b/w/r board
+- the Waveshare 4.2" V2 b/w/r board requires the shortened reset pulse
+- added support for GDEW029I6FD 2.9" b/w 128x296 flexible board
+- some fixes and improvement for the new style panel selection
+#### Version 1.3.7
 - added support for GDEW0102T4 1.02" b/w 80x128 panel or Waveshare 1.02" b/w board
 - the GDEW0102T4 panel has a different connector than the other SPI panels
 - the GDEW0102T4 panel can be used with the DESPI-C102 connection module

examples/GxEPD2_Example/GxEPD2_Example.ino

@@ -98,7 +98,8 @@ void setup()
   Serial.println();
   Serial.println("setup");
   delay(100);
-  display.init(115200);
+  display.init(115200); // default 20ms reset pulse, e.g. for bare panels with DESPI-C02
+  //display.init(115200, true, 2, false); // USE THIS for Waveshare boards with "clever" reset circuit, 2ms reset pulse
   // first update should be full refresh
   helloWorld();
   delay(1000);

examples/GxEPD2_Example/GxEPD2_display_selection.h

@@ -31,6 +31,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029M06
@@ -57,6 +58,7 @@
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW027C44
 // can use only half buffer size
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT / 2> display(GxEPD2_420c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT / 2> display(GxEPD2_420c_Z21(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEQ042Z21
 // can use only quarter buffer size
 //GxEPD2_3C < GxEPD2_583c, GxEPD2_583c::HEIGHT / 4 > display(GxEPD2_583c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT / 4> display(GxEPD2_750c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW075Z09
@@ -89,6 +91,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029M06
@@ -115,6 +118,7 @@
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW027C44
 // can use only half buffer size
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT / 2> display(GxEPD2_420c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT / 2> display(GxEPD2_420c_Z21(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEQ042Z21
 // can use only quarter buffer size
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT / 4> display(GxEPD2_583c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT / 4> display(GxEPD2_750c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW075Z09
@@ -142,6 +146,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029M06
@@ -166,6 +171,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT> display(GxEPD2_420c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT> display(GxEPD2_420c_Z21(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT> display(GxEPD2_583c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT> display(GxEPD2_750c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, GxEPD2_750c_Z08::HEIGHT> display(GxEPD2_750c_Z08(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW075Z08 800x480
@@ -209,6 +215,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029M06
@@ -234,6 +241,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW075Z08 800x480
@@ -267,6 +275,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029M06
@@ -292,6 +301,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z08 800x480
@@ -321,6 +331,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029M06
@@ -346,6 +357,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW075Z08 800x480

examples/GxEPD2_Example/GxEPD2_display_selection_added.h

@@ -38,6 +38,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029M06
@@ -62,6 +63,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z08 800x480
@@ -103,6 +105,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029M06
@@ -127,6 +130,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW075Z08 800x480
@@ -164,6 +168,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029M06
@@ -187,6 +192,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT> display(GxEPD2_420c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT> display(GxEPD2_420c_Z21(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT> display(GxEPD2_583c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT> display(GxEPD2_750c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_3C<GxEPD2_750c_Z08, GxEPD2_750c_Z08::HEIGHT> display(GxEPD2_750c_Z08(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW075Z08 800x480
@@ -223,6 +229,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029M06
@@ -246,6 +253,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT> display(GxEPD2_420c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT> display(GxEPD2_420c_Z21(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT> display(GxEPD2_583c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT> display(GxEPD2_750c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_3C<GxEPD2_750c_Z08, GxEPD2_750c_Z08::HEIGHT> display(GxEPD2_750c_Z08(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW075Z08 800x480
@@ -282,6 +290,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029M06
@@ -307,6 +316,7 @@
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 // can use only half buffer size
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT / 2> display(GxEPD2_420c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT / 2> display(GxEPD2_420c_Z21(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEQ042Z21
 // can use only quarter buffer size
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT / 4> display(GxEPD2_583c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT / 4> display(GxEPD2_750c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
@@ -336,6 +346,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029M06
@@ -361,6 +372,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z08 800x480

examples/GxEPD2_Example/GxEPD2_display_selection_new_style.h

@@ -35,6 +35,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290     // GDEH029A1   128x296, SSD1608 (IL3820)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5  // GDEW029T5   128x296, UC8151 (IL0373)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5D // GDEW029T5D  128x296, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_I6FD // GDEW029I6FD  128x296, UC8151D
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94 // GDEM029T94  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94_V2 // GDEM029T94  128x296, SSD1680, Waveshare 2.9" V2 variant
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_M06 // GDEW029M06  128x296, UC8151 (IL0373)
@@ -49,6 +50,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750     // GDEW075T8   640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750_T7  // GDEW075T7   800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_1160_T91 // GDEH116T91 960x640, SSD1677
+//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 3-color e-papers
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154c     // GDEW0154Z04 200x200, IL0376F, no longer available
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154_Z90c // GDEH0154Z90 200x200, SSD1682
@@ -59,11 +61,11 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_C90c // GDEM029C90  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_270c     // GDEW027C44  176x264, IL91874
 //#define GxEPD2_DRIVER_CLASS GxEPD2_420c     // GDEW042Z15  400x300, UC8176 (IL0398)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_Z21 // GDEQ042Z21  400x300, UC8276
 //#define GxEPD2_DRIVER_CLASS GxEPD2_583c     // GDEW0583Z21 600x448, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c     // GDEW075Z09  640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z08 // GDEW075Z08  800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z90 // GDEH075Z90  880x528, SSD1677
-//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 7-color e-paper
 //#define GxEPD2_DRIVER_CLASS GxEPD2_565c // Waveshare 5.65" 7-color (3C graphics)
 // grey levels parallel IF e-papers on Waveshare e-Paper IT8951 Driver HAT

examples/GxEPD2_Example/GxEPD2_selection_check.h

@@ -29,6 +29,7 @@
 #define GxEPD2_290_IS_BW true
 #define GxEPD2_290_T5_IS_BW true
 #define GxEPD2_290_T5D_IS_BW true
+#define GxEPD2_290_I6FD_IS_BW true
 #define GxEPD2_290_T94_IS_BW true
 #define GxEPD2_290_T94_V2_IS_BW true
 #define GxEPD2_290_M06_IS_BW true
@@ -43,6 +44,7 @@
 #define GxEPD2_750_IS_BW true
 #define GxEPD2_750_T7_IS_BW true
 #define GxEPD2_1160_T91_IS_BW true
+#define GxEPD2_1248_IS_BW true
 // 3-color e-papers
 #define GxEPD2_154c_IS_3C true
 #define GxEPD2_154_Z90c_IS_3C true
@@ -53,11 +55,11 @@
 #define GxEPD2_290_C90c_IS_3C true
 #define GxEPD2_270c_IS_3C true
 #define GxEPD2_420c_IS_3C true
+#define GxEPD2_420c_Z21_IS_3C true
 #define GxEPD2_583c_IS_3C true
 #define GxEPD2_750c_IS_3C true
 #define GxEPD2_750c_Z08_IS_3C true
 #define GxEPD2_750c_Z90_IS_3C true
-#define GxEPD2_1248_IS_3C true
 // 7-color e-paper
 #define GxEPD2_565c_IS_7C true
 
@@ -65,11 +67,15 @@
 #define IS_GxEPD2_DRIVER(c, x) (c##x)
 #define IS_GxEPD2_DRIVER_BW(x) IS_GxEPD2_DRIVER(x, _IS_BW)
 #define IS_GxEPD2_DRIVER_3C(x) IS_GxEPD2_DRIVER(x, _IS_3C)
+#define IS_GxEPD2_DRIVER_7C(x) IS_GxEPD2_DRIVER(x, _IS_7C)
 #if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_BW used with 3-color driver class"
 #endif
 #if IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_3C used with b/w driver class"
 #endif
+#if !IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
+#error "neither BW nor 3C nor 7C kind defined for driver class (error in GxEPD2_selection_check.h)"
+#endif
 
 #endif

examples/GxEPD2_GFX_Example/GxEPD2_display_selection.h

@@ -31,6 +31,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029M06
@@ -57,6 +58,7 @@
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW027C44
 // can use only half buffer size
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT / 2> display(GxEPD2_420c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT / 2> display(GxEPD2_420c_Z21(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEQ042Z21
 // can use only quarter buffer size
 //GxEPD2_3C < GxEPD2_583c, GxEPD2_583c::HEIGHT / 4 > display(GxEPD2_583c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT / 4> display(GxEPD2_750c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW075Z09
@@ -89,6 +91,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029M06
@@ -115,6 +118,7 @@
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW027C44
 // can use only half buffer size
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT / 2> display(GxEPD2_420c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT / 2> display(GxEPD2_420c_Z21(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEQ042Z21
 // can use only quarter buffer size
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT / 4> display(GxEPD2_583c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT / 4> display(GxEPD2_750c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW075Z09
@@ -142,6 +146,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029M06
@@ -166,6 +171,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT> display(GxEPD2_420c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT> display(GxEPD2_420c_Z21(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT> display(GxEPD2_583c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT> display(GxEPD2_750c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, GxEPD2_750c_Z08::HEIGHT> display(GxEPD2_750c_Z08(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW075Z08 800x480
@@ -209,6 +215,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029M06
@@ -234,6 +241,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW075Z08 800x480
@@ -267,6 +275,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029M06
@@ -292,6 +301,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z08 800x480
@@ -321,6 +331,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029M06
@@ -346,6 +357,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW075Z08 800x480

examples/GxEPD2_GFX_Example/GxEPD2_display_selection_added.h

@@ -38,6 +38,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029M06
@@ -62,6 +63,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z08 800x480
@@ -103,6 +105,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029M06
@@ -127,6 +130,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW075Z08 800x480
@@ -164,6 +168,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029M06
@@ -187,6 +192,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT> display(GxEPD2_420c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT> display(GxEPD2_420c_Z21(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT> display(GxEPD2_583c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT> display(GxEPD2_750c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_3C<GxEPD2_750c_Z08, GxEPD2_750c_Z08::HEIGHT> display(GxEPD2_750c_Z08(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW075Z08 800x480
@@ -223,6 +229,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029M06
@@ -246,6 +253,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT> display(GxEPD2_420c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT> display(GxEPD2_420c_Z21(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT> display(GxEPD2_583c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT> display(GxEPD2_750c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_3C<GxEPD2_750c_Z08, GxEPD2_750c_Z08::HEIGHT> display(GxEPD2_750c_Z08(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW075Z08 800x480
@@ -282,6 +290,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029M06
@@ -307,6 +316,7 @@
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 // can use only half buffer size
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT / 2> display(GxEPD2_420c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT / 2> display(GxEPD2_420c_Z21(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEQ042Z21
 // can use only quarter buffer size
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT / 4> display(GxEPD2_583c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT / 4> display(GxEPD2_750c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
@@ -336,6 +346,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029M06
@@ -361,6 +372,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z08 800x480

examples/GxEPD2_GFX_Example/GxEPD2_display_selection_new_style.h

@@ -35,6 +35,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290     // GDEH029A1   128x296, SSD1608 (IL3820)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5  // GDEW029T5   128x296, UC8151 (IL0373)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5D // GDEW029T5D  128x296, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_I6FD // GDEW029I6FD  128x296, UC8151D
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94 // GDEM029T94  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94_V2 // GDEM029T94  128x296, SSD1680, Waveshare 2.9" V2 variant
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_M06 // GDEW029M06  128x296, UC8151 (IL0373)
@@ -49,6 +50,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750     // GDEW075T8   640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750_T7  // GDEW075T7   800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_1160_T91 // GDEH116T91 960x640, SSD1677
+//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 3-color e-papers
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154c     // GDEW0154Z04 200x200, IL0376F, no longer available
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154_Z90c // GDEH0154Z90 200x200, SSD1682
@@ -59,11 +61,11 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_C90c // GDEM029C90  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_270c     // GDEW027C44  176x264, IL91874
 //#define GxEPD2_DRIVER_CLASS GxEPD2_420c     // GDEW042Z15  400x300, UC8176 (IL0398)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_Z21 // GDEQ042Z21  400x300, UC8276
 //#define GxEPD2_DRIVER_CLASS GxEPD2_583c     // GDEW0583Z21 600x448, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c     // GDEW075Z09  640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z08 // GDEW075Z08  800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z90 // GDEH075Z90  880x528, SSD1677
-//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 7-color e-paper
 //#define GxEPD2_DRIVER_CLASS GxEPD2_565c // Waveshare 5.65" 7-color (3C graphics)
 // grey levels parallel IF e-papers on Waveshare e-Paper IT8951 Driver HAT

examples/GxEPD2_GFX_Example/GxEPD2_selection_check.h

@@ -29,6 +29,7 @@
 #define GxEPD2_290_IS_BW true
 #define GxEPD2_290_T5_IS_BW true
 #define GxEPD2_290_T5D_IS_BW true
+#define GxEPD2_290_I6FD_IS_BW true
 #define GxEPD2_290_T94_IS_BW true
 #define GxEPD2_290_T94_V2_IS_BW true
 #define GxEPD2_290_M06_IS_BW true
@@ -43,6 +44,7 @@
 #define GxEPD2_750_IS_BW true
 #define GxEPD2_750_T7_IS_BW true
 #define GxEPD2_1160_T91_IS_BW true
+#define GxEPD2_1248_IS_BW true
 // 3-color e-papers
 #define GxEPD2_154c_IS_3C true
 #define GxEPD2_154_Z90c_IS_3C true
@@ -53,11 +55,11 @@
 #define GxEPD2_290_C90c_IS_3C true
 #define GxEPD2_270c_IS_3C true
 #define GxEPD2_420c_IS_3C true
+#define GxEPD2_420c_Z21_IS_3C true
 #define GxEPD2_583c_IS_3C true
 #define GxEPD2_750c_IS_3C true
 #define GxEPD2_750c_Z08_IS_3C true
 #define GxEPD2_750c_Z90_IS_3C true
-#define GxEPD2_1248_IS_3C true
 // 7-color e-paper
 #define GxEPD2_565c_IS_7C true
 
@@ -65,11 +67,15 @@
 #define IS_GxEPD2_DRIVER(c, x) (c##x)
 #define IS_GxEPD2_DRIVER_BW(x) IS_GxEPD2_DRIVER(x, _IS_BW)
 #define IS_GxEPD2_DRIVER_3C(x) IS_GxEPD2_DRIVER(x, _IS_3C)
+#define IS_GxEPD2_DRIVER_7C(x) IS_GxEPD2_DRIVER(x, _IS_7C)
 #if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_BW used with 3-color driver class"
 #endif
 #if IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_3C used with b/w driver class"
 #endif
+#if !IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
+#error "neither BW nor 3C nor 7C kind defined for driver class (error in GxEPD2_selection_check.h)"
+#endif
 
 #endif

examples/GxEPD2_HelloWorld/GxEPD2_display_selection.h

@@ -31,6 +31,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029M06
@@ -57,6 +58,7 @@
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW027C44
 // can use only half buffer size
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT / 2> display(GxEPD2_420c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT / 2> display(GxEPD2_420c_Z21(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEQ042Z21
 // can use only quarter buffer size
 //GxEPD2_3C < GxEPD2_583c, GxEPD2_583c::HEIGHT / 4 > display(GxEPD2_583c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT / 4> display(GxEPD2_750c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW075Z09
@@ -89,6 +91,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029M06
@@ -115,6 +118,7 @@
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW027C44
 // can use only half buffer size
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT / 2> display(GxEPD2_420c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT / 2> display(GxEPD2_420c_Z21(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEQ042Z21
 // can use only quarter buffer size
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT / 4> display(GxEPD2_583c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT / 4> display(GxEPD2_750c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW075Z09
@@ -142,6 +146,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029M06
@@ -166,6 +171,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT> display(GxEPD2_420c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT> display(GxEPD2_420c_Z21(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT> display(GxEPD2_583c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT> display(GxEPD2_750c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, GxEPD2_750c_Z08::HEIGHT> display(GxEPD2_750c_Z08(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW075Z08 800x480
@@ -209,6 +215,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029M06
@@ -234,6 +241,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW075Z08 800x480
@@ -267,6 +275,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029M06
@@ -292,6 +301,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z08 800x480
@@ -321,6 +331,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029M06
@@ -346,6 +357,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW075Z08 800x480

examples/GxEPD2_HelloWorld/GxEPD2_display_selection_added.h

@@ -38,6 +38,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029M06
@@ -62,6 +63,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z08 800x480
@@ -103,6 +105,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029M06
@@ -127,6 +130,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW075Z08 800x480
@@ -164,6 +168,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029M06
@@ -187,6 +192,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT> display(GxEPD2_420c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT> display(GxEPD2_420c_Z21(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT> display(GxEPD2_583c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT> display(GxEPD2_750c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_3C<GxEPD2_750c_Z08, GxEPD2_750c_Z08::HEIGHT> display(GxEPD2_750c_Z08(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW075Z08 800x480
@@ -223,6 +229,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029M06
@@ -246,6 +253,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT> display(GxEPD2_420c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT> display(GxEPD2_420c_Z21(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT> display(GxEPD2_583c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT> display(GxEPD2_750c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_3C<GxEPD2_750c_Z08, GxEPD2_750c_Z08::HEIGHT> display(GxEPD2_750c_Z08(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW075Z08 800x480
@@ -282,6 +290,7 @@
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029M06
@@ -307,6 +316,7 @@
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 // can use only half buffer size
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT / 2> display(GxEPD2_420c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT / 2> display(GxEPD2_420c_Z21(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEQ042Z21
 // can use only quarter buffer size
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT / 4> display(GxEPD2_583c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT / 4> display(GxEPD2_750c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
@@ -336,6 +346,7 @@
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5
 //GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94
 //GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029M06
@@ -361,6 +372,7 @@
 //GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z08 800x480

examples/GxEPD2_HelloWorld/GxEPD2_display_selection_new_style.h

@@ -35,6 +35,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290     // GDEH029A1   128x296, SSD1608 (IL3820)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5  // GDEW029T5   128x296, UC8151 (IL0373)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5D // GDEW029T5D  128x296, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_I6FD // GDEW029I6FD  128x296, UC8151D
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94 // GDEM029T94  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94_V2 // GDEM029T94  128x296, SSD1680, Waveshare 2.9" V2 variant
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_M06 // GDEW029M06  128x296, UC8151 (IL0373)
@@ -49,6 +50,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750     // GDEW075T8   640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750_T7  // GDEW075T7   800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_1160_T91 // GDEH116T91 960x640, SSD1677
+//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 3-color e-papers
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154c     // GDEW0154Z04 200x200, IL0376F, no longer available
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154_Z90c // GDEH0154Z90 200x200, SSD1682
@@ -59,11 +61,11 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_C90c // GDEM029C90  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_270c     // GDEW027C44  176x264, IL91874
 //#define GxEPD2_DRIVER_CLASS GxEPD2_420c     // GDEW042Z15  400x300, UC8176 (IL0398)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_Z21 // GDEQ042Z21  400x300, UC8276
 //#define GxEPD2_DRIVER_CLASS GxEPD2_583c     // GDEW0583Z21 600x448, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c     // GDEW075Z09  640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z08 // GDEW075Z08  800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z90 // GDEH075Z90  880x528, SSD1677
-//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 7-color e-paper
 //#define GxEPD2_DRIVER_CLASS GxEPD2_565c // Waveshare 5.65" 7-color (3C graphics)
 // grey levels parallel IF e-papers on Waveshare e-Paper IT8951 Driver HAT

examples/GxEPD2_HelloWorld/GxEPD2_selection_check.h

@@ -29,6 +29,7 @@
 #define GxEPD2_290_IS_BW true
 #define GxEPD2_290_T5_IS_BW true
 #define GxEPD2_290_T5D_IS_BW true
+#define GxEPD2_290_I6FD_IS_BW true
 #define GxEPD2_290_T94_IS_BW true
 #define GxEPD2_290_T94_V2_IS_BW true
 #define GxEPD2_290_M06_IS_BW true
@@ -43,6 +44,7 @@
 #define GxEPD2_750_IS_BW true
 #define GxEPD2_750_T7_IS_BW true
 #define GxEPD2_1160_T91_IS_BW true
+#define GxEPD2_1248_IS_BW true
 // 3-color e-papers
 #define GxEPD2_154c_IS_3C true
 #define GxEPD2_154_Z90c_IS_3C true
@@ -53,11 +55,11 @@
 #define GxEPD2_290_C90c_IS_3C true
 #define GxEPD2_270c_IS_3C true
 #define GxEPD2_420c_IS_3C true
+#define GxEPD2_420c_Z21_IS_3C true
 #define GxEPD2_583c_IS_3C true
 #define GxEPD2_750c_IS_3C true
 #define GxEPD2_750c_Z08_IS_3C true
 #define GxEPD2_750c_Z90_IS_3C true
-#define GxEPD2_1248_IS_3C true
 // 7-color e-paper
 #define GxEPD2_565c_IS_7C true
 
@@ -65,11 +67,15 @@
 #define IS_GxEPD2_DRIVER(c, x) (c##x)
 #define IS_GxEPD2_DRIVER_BW(x) IS_GxEPD2_DRIVER(x, _IS_BW)
 #define IS_GxEPD2_DRIVER_3C(x) IS_GxEPD2_DRIVER(x, _IS_3C)
+#define IS_GxEPD2_DRIVER_7C(x) IS_GxEPD2_DRIVER(x, _IS_7C)
 #if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_BW used with 3-color driver class"
 #endif
 #if IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_3C used with b/w driver class"
 #endif
+#if !IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
+#error "neither BW nor 3C nor 7C kind defined for driver class (error in GxEPD2_selection_check.h)"
+#endif
 
 #endif

examples/GxEPD2_MinimumExample/GxEPD2_display_selection_new_style.h

@@ -35,6 +35,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290     // GDEH029A1   128x296, SSD1608 (IL3820)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5  // GDEW029T5   128x296, UC8151 (IL0373)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5D // GDEW029T5D  128x296, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_I6FD // GDEW029I6FD  128x296, UC8151D
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94 // GDEM029T94  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94_V2 // GDEM029T94  128x296, SSD1680, Waveshare 2.9" V2 variant
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_M06 // GDEW029M06  128x296, UC8151 (IL0373)
@@ -49,6 +50,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750     // GDEW075T8   640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750_T7  // GDEW075T7   800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_1160_T91 // GDEH116T91 960x640, SSD1677
+//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 3-color e-papers
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154c     // GDEW0154Z04 200x200, IL0376F, no longer available
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154_Z90c // GDEH0154Z90 200x200, SSD1682
@@ -59,11 +61,11 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_C90c // GDEM029C90  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_270c     // GDEW027C44  176x264, IL91874
 //#define GxEPD2_DRIVER_CLASS GxEPD2_420c     // GDEW042Z15  400x300, UC8176 (IL0398)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_Z21 // GDEQ042Z21  400x300, UC8276
 //#define GxEPD2_DRIVER_CLASS GxEPD2_583c     // GDEW0583Z21 600x448, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c     // GDEW075Z09  640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z08 // GDEW075Z08  800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z90 // GDEH075Z90  880x528, SSD1677
-//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 7-color e-paper
 //#define GxEPD2_DRIVER_CLASS GxEPD2_565c // Waveshare 5.65" 7-color (3C graphics)
 // grey levels parallel IF e-papers on Waveshare e-Paper IT8951 Driver HAT

examples/GxEPD2_MinimumExample/GxEPD2_selection_check.h

@@ -29,6 +29,7 @@
 #define GxEPD2_290_IS_BW true
 #define GxEPD2_290_T5_IS_BW true
 #define GxEPD2_290_T5D_IS_BW true
+#define GxEPD2_290_I6FD_IS_BW true
 #define GxEPD2_290_T94_IS_BW true
 #define GxEPD2_290_T94_V2_IS_BW true
 #define GxEPD2_290_M06_IS_BW true
@@ -43,6 +44,7 @@
 #define GxEPD2_750_IS_BW true
 #define GxEPD2_750_T7_IS_BW true
 #define GxEPD2_1160_T91_IS_BW true
+#define GxEPD2_1248_IS_BW true
 // 3-color e-papers
 #define GxEPD2_154c_IS_3C true
 #define GxEPD2_154_Z90c_IS_3C true
@@ -53,11 +55,11 @@
 #define GxEPD2_290_C90c_IS_3C true
 #define GxEPD2_270c_IS_3C true
 #define GxEPD2_420c_IS_3C true
+#define GxEPD2_420c_Z21_IS_3C true
 #define GxEPD2_583c_IS_3C true
 #define GxEPD2_750c_IS_3C true
 #define GxEPD2_750c_Z08_IS_3C true
 #define GxEPD2_750c_Z90_IS_3C true
-#define GxEPD2_1248_IS_3C true
 // 7-color e-paper
 #define GxEPD2_565c_IS_7C true
 
@@ -65,11 +67,15 @@
 #define IS_GxEPD2_DRIVER(c, x) (c##x)
 #define IS_GxEPD2_DRIVER_BW(x) IS_GxEPD2_DRIVER(x, _IS_BW)
 #define IS_GxEPD2_DRIVER_3C(x) IS_GxEPD2_DRIVER(x, _IS_3C)
+#define IS_GxEPD2_DRIVER_7C(x) IS_GxEPD2_DRIVER(x, _IS_7C)
 #if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_BW used with 3-color driver class"
 #endif
 #if IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_3C used with b/w driver class"
 #endif
+#if !IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
+#error "neither BW nor 3C nor 7C kind defined for driver class (error in GxEPD2_selection_check.h)"
+#endif
 
 #endif

examples/GxEPD2_NotPagedExample/GxEPD2_display_selection_new_style.h

@@ -35,6 +35,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290     // GDEH029A1   128x296, SSD1608 (IL3820)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5  // GDEW029T5   128x296, UC8151 (IL0373)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5D // GDEW029T5D  128x296, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_I6FD // GDEW029I6FD  128x296, UC8151D
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94 // GDEM029T94  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94_V2 // GDEM029T94  128x296, SSD1680, Waveshare 2.9" V2 variant
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_M06 // GDEW029M06  128x296, UC8151 (IL0373)
@@ -49,6 +50,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750     // GDEW075T8   640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750_T7  // GDEW075T7   800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_1160_T91 // GDEH116T91 960x640, SSD1677
+//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 3-color e-papers
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154c     // GDEW0154Z04 200x200, IL0376F, no longer available
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154_Z90c // GDEH0154Z90 200x200, SSD1682
@@ -59,11 +61,11 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_C90c // GDEM029C90  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_270c     // GDEW027C44  176x264, IL91874
 //#define GxEPD2_DRIVER_CLASS GxEPD2_420c     // GDEW042Z15  400x300, UC8176 (IL0398)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_Z21 // GDEQ042Z21  400x300, UC8276
 //#define GxEPD2_DRIVER_CLASS GxEPD2_583c     // GDEW0583Z21 600x448, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c     // GDEW075Z09  640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z08 // GDEW075Z08  800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z90 // GDEH075Z90  880x528, SSD1677
-//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 7-color e-paper
 //#define GxEPD2_DRIVER_CLASS GxEPD2_565c // Waveshare 5.65" 7-color (3C graphics)
 // grey levels parallel IF e-papers on Waveshare e-Paper IT8951 Driver HAT

examples/GxEPD2_NotPagedExample/GxEPD2_selection_check.h

@@ -29,6 +29,7 @@
 #define GxEPD2_290_IS_BW true
 #define GxEPD2_290_T5_IS_BW true
 #define GxEPD2_290_T5D_IS_BW true
+#define GxEPD2_290_I6FD_IS_BW true
 #define GxEPD2_290_T94_IS_BW true
 #define GxEPD2_290_T94_V2_IS_BW true
 #define GxEPD2_290_M06_IS_BW true
@@ -43,6 +44,7 @@
 #define GxEPD2_750_IS_BW true
 #define GxEPD2_750_T7_IS_BW true
 #define GxEPD2_1160_T91_IS_BW true
+#define GxEPD2_1248_IS_BW true
 // 3-color e-papers
 #define GxEPD2_154c_IS_3C true
 #define GxEPD2_154_Z90c_IS_3C true
@@ -53,11 +55,11 @@
 #define GxEPD2_290_C90c_IS_3C true
 #define GxEPD2_270c_IS_3C true
 #define GxEPD2_420c_IS_3C true
+#define GxEPD2_420c_Z21_IS_3C true
 #define GxEPD2_583c_IS_3C true
 #define GxEPD2_750c_IS_3C true
 #define GxEPD2_750c_Z08_IS_3C true
 #define GxEPD2_750c_Z90_IS_3C true
-#define GxEPD2_1248_IS_3C true
 // 7-color e-paper
 #define GxEPD2_565c_IS_7C true
 
@@ -65,11 +67,15 @@
 #define IS_GxEPD2_DRIVER(c, x) (c##x)
 #define IS_GxEPD2_DRIVER_BW(x) IS_GxEPD2_DRIVER(x, _IS_BW)
 #define IS_GxEPD2_DRIVER_3C(x) IS_GxEPD2_DRIVER(x, _IS_3C)
+#define IS_GxEPD2_DRIVER_7C(x) IS_GxEPD2_DRIVER(x, _IS_7C)
 #if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_BW used with 3-color driver class"
 #endif
 #if IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_3C used with b/w driver class"
 #endif
+#if !IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
+#error "neither BW nor 3C nor 7C kind defined for driver class (error in GxEPD2_selection_check.h)"
+#endif
 
 #endif

examples/GxEPD2_PagedDisplayUsingCallback/GxEPD2_display_selection_new_style.h

@@ -35,6 +35,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290     // GDEH029A1   128x296, SSD1608 (IL3820)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5  // GDEW029T5   128x296, UC8151 (IL0373)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5D // GDEW029T5D  128x296, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_I6FD // GDEW029I6FD  128x296, UC8151D
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94 // GDEM029T94  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94_V2 // GDEM029T94  128x296, SSD1680, Waveshare 2.9" V2 variant
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_M06 // GDEW029M06  128x296, UC8151 (IL0373)
@@ -49,6 +50,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750     // GDEW075T8   640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750_T7  // GDEW075T7   800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_1160_T91 // GDEH116T91 960x640, SSD1677
+//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 3-color e-papers
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154c     // GDEW0154Z04 200x200, IL0376F, no longer available
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154_Z90c // GDEH0154Z90 200x200, SSD1682
@@ -59,11 +61,11 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_C90c // GDEM029C90  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_270c     // GDEW027C44  176x264, IL91874
 //#define GxEPD2_DRIVER_CLASS GxEPD2_420c     // GDEW042Z15  400x300, UC8176 (IL0398)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_Z21 // GDEQ042Z21  400x300, UC8276
 //#define GxEPD2_DRIVER_CLASS GxEPD2_583c     // GDEW0583Z21 600x448, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c     // GDEW075Z09  640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z08 // GDEW075Z08  800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z90 // GDEH075Z90  880x528, SSD1677
-//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 7-color e-paper
 //#define GxEPD2_DRIVER_CLASS GxEPD2_565c // Waveshare 5.65" 7-color (3C graphics)
 // grey levels parallel IF e-papers on Waveshare e-Paper IT8951 Driver HAT

examples/GxEPD2_PagedDisplayUsingCallback/GxEPD2_selection_check.h

@@ -29,6 +29,7 @@
 #define GxEPD2_290_IS_BW true
 #define GxEPD2_290_T5_IS_BW true
 #define GxEPD2_290_T5D_IS_BW true
+#define GxEPD2_290_I6FD_IS_BW true
 #define GxEPD2_290_T94_IS_BW true
 #define GxEPD2_290_T94_V2_IS_BW true
 #define GxEPD2_290_M06_IS_BW true
@@ -43,6 +44,7 @@
 #define GxEPD2_750_IS_BW true
 #define GxEPD2_750_T7_IS_BW true
 #define GxEPD2_1160_T91_IS_BW true
+#define GxEPD2_1248_IS_BW true
 // 3-color e-papers
 #define GxEPD2_154c_IS_3C true
 #define GxEPD2_154_Z90c_IS_3C true
@@ -53,11 +55,11 @@
 #define GxEPD2_290_C90c_IS_3C true
 #define GxEPD2_270c_IS_3C true
 #define GxEPD2_420c_IS_3C true
+#define GxEPD2_420c_Z21_IS_3C true
 #define GxEPD2_583c_IS_3C true
 #define GxEPD2_750c_IS_3C true
 #define GxEPD2_750c_Z08_IS_3C true
 #define GxEPD2_750c_Z90_IS_3C true
-#define GxEPD2_1248_IS_3C true
 // 7-color e-paper
 #define GxEPD2_565c_IS_7C true
 
@@ -65,11 +67,15 @@
 #define IS_GxEPD2_DRIVER(c, x) (c##x)
 #define IS_GxEPD2_DRIVER_BW(x) IS_GxEPD2_DRIVER(x, _IS_BW)
 #define IS_GxEPD2_DRIVER_3C(x) IS_GxEPD2_DRIVER(x, _IS_3C)
+#define IS_GxEPD2_DRIVER_7C(x) IS_GxEPD2_DRIVER(x, _IS_7C)
 #if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_BW used with 3-color driver class"
 #endif
 #if IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_3C used with b/w driver class"
 #endif
+#if !IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
+#error "neither BW nor 3C nor 7C kind defined for driver class (error in GxEPD2_selection_check.h)"
+#endif
 
 #endif

examples/GxEPD2_SD_Example/GxEPD2_display_selection_new_style.h

@@ -35,6 +35,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290     // GDEH029A1   128x296, SSD1608 (IL3820)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5  // GDEW029T5   128x296, UC8151 (IL0373)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5D // GDEW029T5D  128x296, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_I6FD // GDEW029I6FD  128x296, UC8151D
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94 // GDEM029T94  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94_V2 // GDEM029T94  128x296, SSD1680, Waveshare 2.9" V2 variant
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_M06 // GDEW029M06  128x296, UC8151 (IL0373)
@@ -49,6 +50,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750     // GDEW075T8   640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750_T7  // GDEW075T7   800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_1160_T91 // GDEH116T91 960x640, SSD1677
+//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 3-color e-papers
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154c     // GDEW0154Z04 200x200, IL0376F, no longer available
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154_Z90c // GDEH0154Z90 200x200, SSD1682
@@ -59,11 +61,11 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_C90c // GDEM029C90  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_270c     // GDEW027C44  176x264, IL91874
 //#define GxEPD2_DRIVER_CLASS GxEPD2_420c     // GDEW042Z15  400x300, UC8176 (IL0398)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_Z21 // GDEQ042Z21  400x300, UC8276
 //#define GxEPD2_DRIVER_CLASS GxEPD2_583c     // GDEW0583Z21 600x448, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c     // GDEW075Z09  640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z08 // GDEW075Z08  800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z90 // GDEH075Z90  880x528, SSD1677
-//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 7-color e-paper
 //#define GxEPD2_DRIVER_CLASS GxEPD2_565c // Waveshare 5.65" 7-color (3C graphics)
 // grey levels parallel IF e-papers on Waveshare e-Paper IT8951 Driver HAT

examples/GxEPD2_SD_Example/GxEPD2_selection_check.h

@@ -29,6 +29,7 @@
 #define GxEPD2_290_IS_BW true
 #define GxEPD2_290_T5_IS_BW true
 #define GxEPD2_290_T5D_IS_BW true
+#define GxEPD2_290_I6FD_IS_BW true
 #define GxEPD2_290_T94_IS_BW true
 #define GxEPD2_290_T94_V2_IS_BW true
 #define GxEPD2_290_M06_IS_BW true
@@ -43,6 +44,7 @@
 #define GxEPD2_750_IS_BW true
 #define GxEPD2_750_T7_IS_BW true
 #define GxEPD2_1160_T91_IS_BW true
+#define GxEPD2_1248_IS_BW true
 // 3-color e-papers
 #define GxEPD2_154c_IS_3C true
 #define GxEPD2_154_Z90c_IS_3C true
@@ -53,11 +55,11 @@
 #define GxEPD2_290_C90c_IS_3C true
 #define GxEPD2_270c_IS_3C true
 #define GxEPD2_420c_IS_3C true
+#define GxEPD2_420c_Z21_IS_3C true
 #define GxEPD2_583c_IS_3C true
 #define GxEPD2_750c_IS_3C true
 #define GxEPD2_750c_Z08_IS_3C true
 #define GxEPD2_750c_Z90_IS_3C true
-#define GxEPD2_1248_IS_3C true
 // 7-color e-paper
 #define GxEPD2_565c_IS_7C true
 
@@ -65,11 +67,15 @@
 #define IS_GxEPD2_DRIVER(c, x) (c##x)
 #define IS_GxEPD2_DRIVER_BW(x) IS_GxEPD2_DRIVER(x, _IS_BW)
 #define IS_GxEPD2_DRIVER_3C(x) IS_GxEPD2_DRIVER(x, _IS_3C)
+#define IS_GxEPD2_DRIVER_7C(x) IS_GxEPD2_DRIVER(x, _IS_7C)
 #if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_BW used with 3-color driver class"
 #endif
 #if IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_3C used with b/w driver class"
 #endif
+#if !IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
+#error "neither BW nor 3C nor 7C kind defined for driver class (error in GxEPD2_selection_check.h)"
+#endif
 
 #endif

examples/GxEPD2_SerialFlash_Example/GxEPD2_display_selection_new_style.h

@@ -35,6 +35,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290     // GDEH029A1   128x296, SSD1608 (IL3820)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5  // GDEW029T5   128x296, UC8151 (IL0373)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5D // GDEW029T5D  128x296, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_I6FD // GDEW029I6FD  128x296, UC8151D
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94 // GDEM029T94  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94_V2 // GDEM029T94  128x296, SSD1680, Waveshare 2.9" V2 variant
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_M06 // GDEW029M06  128x296, UC8151 (IL0373)
@@ -49,6 +50,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750     // GDEW075T8   640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750_T7  // GDEW075T7   800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_1160_T91 // GDEH116T91 960x640, SSD1677
+//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 3-color e-papers
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154c     // GDEW0154Z04 200x200, IL0376F, no longer available
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154_Z90c // GDEH0154Z90 200x200, SSD1682
@@ -59,11 +61,11 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_C90c // GDEM029C90  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_270c     // GDEW027C44  176x264, IL91874
 //#define GxEPD2_DRIVER_CLASS GxEPD2_420c     // GDEW042Z15  400x300, UC8176 (IL0398)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_Z21 // GDEQ042Z21  400x300, UC8276
 //#define GxEPD2_DRIVER_CLASS GxEPD2_583c     // GDEW0583Z21 600x448, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c     // GDEW075Z09  640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z08 // GDEW075Z08  800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z90 // GDEH075Z90  880x528, SSD1677
-//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 7-color e-paper
 //#define GxEPD2_DRIVER_CLASS GxEPD2_565c // Waveshare 5.65" 7-color (3C graphics)
 // grey levels parallel IF e-papers on Waveshare e-Paper IT8951 Driver HAT

examples/GxEPD2_SerialFlash_Example/GxEPD2_selection_check.h

@@ -29,6 +29,7 @@
 #define GxEPD2_290_IS_BW true
 #define GxEPD2_290_T5_IS_BW true
 #define GxEPD2_290_T5D_IS_BW true
+#define GxEPD2_290_I6FD_IS_BW true
 #define GxEPD2_290_T94_IS_BW true
 #define GxEPD2_290_T94_V2_IS_BW true
 #define GxEPD2_290_M06_IS_BW true
@@ -43,6 +44,7 @@
 #define GxEPD2_750_IS_BW true
 #define GxEPD2_750_T7_IS_BW true
 #define GxEPD2_1160_T91_IS_BW true
+#define GxEPD2_1248_IS_BW true
 // 3-color e-papers
 #define GxEPD2_154c_IS_3C true
 #define GxEPD2_154_Z90c_IS_3C true
@@ -53,11 +55,11 @@
 #define GxEPD2_290_C90c_IS_3C true
 #define GxEPD2_270c_IS_3C true
 #define GxEPD2_420c_IS_3C true
+#define GxEPD2_420c_Z21_IS_3C true
 #define GxEPD2_583c_IS_3C true
 #define GxEPD2_750c_IS_3C true
 #define GxEPD2_750c_Z08_IS_3C true
 #define GxEPD2_750c_Z90_IS_3C true
-#define GxEPD2_1248_IS_3C true
 // 7-color e-paper
 #define GxEPD2_565c_IS_7C true
 
@@ -65,11 +67,15 @@
 #define IS_GxEPD2_DRIVER(c, x) (c##x)
 #define IS_GxEPD2_DRIVER_BW(x) IS_GxEPD2_DRIVER(x, _IS_BW)
 #define IS_GxEPD2_DRIVER_3C(x) IS_GxEPD2_DRIVER(x, _IS_3C)
+#define IS_GxEPD2_DRIVER_7C(x) IS_GxEPD2_DRIVER(x, _IS_7C)
 #if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_BW used with 3-color driver class"
 #endif
 #if IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_3C used with b/w driver class"
 #endif
+#if !IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
+#error "neither BW nor 3C nor 7C kind defined for driver class (error in GxEPD2_selection_check.h)"
+#endif
 
 #endif

examples/GxEPD2_Spiffs_Example/GxEPD2_display_selection_new_style.h

@@ -35,6 +35,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290     // GDEH029A1   128x296, SSD1608 (IL3820)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5  // GDEW029T5   128x296, UC8151 (IL0373)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5D // GDEW029T5D  128x296, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_I6FD // GDEW029I6FD  128x296, UC8151D
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94 // GDEM029T94  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94_V2 // GDEM029T94  128x296, SSD1680, Waveshare 2.9" V2 variant
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_M06 // GDEW029M06  128x296, UC8151 (IL0373)
@@ -49,6 +50,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750     // GDEW075T8   640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750_T7  // GDEW075T7   800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_1160_T91 // GDEH116T91 960x640, SSD1677
+//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 3-color e-papers
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154c     // GDEW0154Z04 200x200, IL0376F, no longer available
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154_Z90c // GDEH0154Z90 200x200, SSD1682
@@ -59,11 +61,11 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_C90c // GDEM029C90  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_270c     // GDEW027C44  176x264, IL91874
 //#define GxEPD2_DRIVER_CLASS GxEPD2_420c     // GDEW042Z15  400x300, UC8176 (IL0398)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_Z21 // GDEQ042Z21  400x300, UC8276
 //#define GxEPD2_DRIVER_CLASS GxEPD2_583c     // GDEW0583Z21 600x448, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c     // GDEW075Z09  640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z08 // GDEW075Z08  800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z90 // GDEH075Z90  880x528, SSD1677
-//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 7-color e-paper
 //#define GxEPD2_DRIVER_CLASS GxEPD2_565c // Waveshare 5.65" 7-color (3C graphics)
 // grey levels parallel IF e-papers on Waveshare e-Paper IT8951 Driver HAT

examples/GxEPD2_Spiffs_Example/GxEPD2_selection_check.h

@@ -29,6 +29,7 @@
 #define GxEPD2_290_IS_BW true
 #define GxEPD2_290_T5_IS_BW true
 #define GxEPD2_290_T5D_IS_BW true
+#define GxEPD2_290_I6FD_IS_BW true
 #define GxEPD2_290_T94_IS_BW true
 #define GxEPD2_290_T94_V2_IS_BW true
 #define GxEPD2_290_M06_IS_BW true
@@ -43,6 +44,7 @@
 #define GxEPD2_750_IS_BW true
 #define GxEPD2_750_T7_IS_BW true
 #define GxEPD2_1160_T91_IS_BW true
+#define GxEPD2_1248_IS_BW true
 // 3-color e-papers
 #define GxEPD2_154c_IS_3C true
 #define GxEPD2_154_Z90c_IS_3C true
@@ -53,11 +55,11 @@
 #define GxEPD2_290_C90c_IS_3C true
 #define GxEPD2_270c_IS_3C true
 #define GxEPD2_420c_IS_3C true
+#define GxEPD2_420c_Z21_IS_3C true
 #define GxEPD2_583c_IS_3C true
 #define GxEPD2_750c_IS_3C true
 #define GxEPD2_750c_Z08_IS_3C true
 #define GxEPD2_750c_Z90_IS_3C true
-#define GxEPD2_1248_IS_3C true
 // 7-color e-paper
 #define GxEPD2_565c_IS_7C true
 
@@ -65,11 +67,15 @@
 #define IS_GxEPD2_DRIVER(c, x) (c##x)
 #define IS_GxEPD2_DRIVER_BW(x) IS_GxEPD2_DRIVER(x, _IS_BW)
 #define IS_GxEPD2_DRIVER_3C(x) IS_GxEPD2_DRIVER(x, _IS_3C)
+#define IS_GxEPD2_DRIVER_7C(x) IS_GxEPD2_DRIVER(x, _IS_7C)
 #if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_BW used with 3-color driver class"
 #endif
 #if IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_3C used with b/w driver class"
 #endif
+#if !IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
+#error "neither BW nor 3C nor 7C kind defined for driver class (error in GxEPD2_selection_check.h)"
+#endif
 
 #endif

examples/GxEPD2_U8G2_Fonts_Example/GxEPD2_display_selection_new_style.h

@@ -35,6 +35,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290     // GDEH029A1   128x296, SSD1608 (IL3820)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5  // GDEW029T5   128x296, UC8151 (IL0373)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5D // GDEW029T5D  128x296, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_I6FD // GDEW029I6FD  128x296, UC8151D
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94 // GDEM029T94  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94_V2 // GDEM029T94  128x296, SSD1680, Waveshare 2.9" V2 variant
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_M06 // GDEW029M06  128x296, UC8151 (IL0373)
@@ -49,6 +50,7 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750     // GDEW075T8   640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750_T7  // GDEW075T7   800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_1160_T91 // GDEH116T91 960x640, SSD1677
+//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 3-color e-papers
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154c     // GDEW0154Z04 200x200, IL0376F, no longer available
 //#define GxEPD2_DRIVER_CLASS GxEPD2_154_Z90c // GDEH0154Z90 200x200, SSD1682
@@ -59,11 +61,11 @@
 //#define GxEPD2_DRIVER_CLASS GxEPD2_290_C90c // GDEM029C90  128x296, SSD1680
 //#define GxEPD2_DRIVER_CLASS GxEPD2_270c     // GDEW027C44  176x264, IL91874
 //#define GxEPD2_DRIVER_CLASS GxEPD2_420c     // GDEW042Z15  400x300, UC8176 (IL0398)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_Z21 // GDEQ042Z21  400x300, UC8276
 //#define GxEPD2_DRIVER_CLASS GxEPD2_583c     // GDEW0583Z21 600x448, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c     // GDEW075Z09  640x384, UC8179 (IL0371)
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z08 // GDEW075Z08  800x480, GD7965
 //#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z90 // GDEH075Z90  880x528, SSD1677
-//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 7-color e-paper
 //#define GxEPD2_DRIVER_CLASS GxEPD2_565c // Waveshare 5.65" 7-color (3C graphics)
 // grey levels parallel IF e-papers on Waveshare e-Paper IT8951 Driver HAT

examples/GxEPD2_U8G2_Fonts_Example/GxEPD2_selection_check.h

@@ -29,6 +29,7 @@
 #define GxEPD2_290_IS_BW true
 #define GxEPD2_290_T5_IS_BW true
 #define GxEPD2_290_T5D_IS_BW true
+#define GxEPD2_290_I6FD_IS_BW true
 #define GxEPD2_290_T94_IS_BW true
 #define GxEPD2_290_T94_V2_IS_BW true
 #define GxEPD2_290_M06_IS_BW true
@@ -43,6 +44,7 @@
 #define GxEPD2_750_IS_BW true
 #define GxEPD2_750_T7_IS_BW true
 #define GxEPD2_1160_T91_IS_BW true
+#define GxEPD2_1248_IS_BW true
 // 3-color e-papers
 #define GxEPD2_154c_IS_3C true
 #define GxEPD2_154_Z90c_IS_3C true
@@ -53,11 +55,11 @@
 #define GxEPD2_290_C90c_IS_3C true
 #define GxEPD2_270c_IS_3C true
 #define GxEPD2_420c_IS_3C true
+#define GxEPD2_420c_Z21_IS_3C true
 #define GxEPD2_583c_IS_3C true
 #define GxEPD2_750c_IS_3C true
 #define GxEPD2_750c_Z08_IS_3C true
 #define GxEPD2_750c_Z90_IS_3C true
-#define GxEPD2_1248_IS_3C true
 // 7-color e-paper
 #define GxEPD2_565c_IS_7C true
 
@@ -65,11 +67,15 @@
 #define IS_GxEPD2_DRIVER(c, x) (c##x)
 #define IS_GxEPD2_DRIVER_BW(x) IS_GxEPD2_DRIVER(x, _IS_BW)
 #define IS_GxEPD2_DRIVER_3C(x) IS_GxEPD2_DRIVER(x, _IS_3C)
+#define IS_GxEPD2_DRIVER_7C(x) IS_GxEPD2_DRIVER(x, _IS_7C)
 #if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_BW used with 3-color driver class"
 #endif
 #if IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS)
 #error "GxEPD2_3C used with b/w driver class"
 #endif
+#if !IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
+#error "neither BW nor 3C nor 7C kind defined for driver class (error in GxEPD2_selection_check.h)"
+#endif
 
 #endif

extras/tests/GxEPD2_RefreshTests/GxEPD2_display_selection.h

@@ -15,6 +15,7 @@
 
 #if defined (ESP8266)
 // select one and adapt to your mapping, can use full buffer size (full HEIGHT)
+//GxEPD2_BW<GxEPD2_102, GxEPD2_102::HEIGHT> display(GxEPD2_102(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, GxEPD2_154::HEIGHT> display(GxEPD2_154(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, GxEPD2_154_T8::HEIGHT> display(GxEPD2_154_T8(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0154T8 152x152
@@ -23,11 +24,16 @@
 //GxEPD2_BW<GxEPD2_213, GxEPD2_213::HEIGHT> display(GxEPD2_213(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDE0213B1, phased out
 //GxEPD2_BW<GxEPD2_213_B72, GxEPD2_213_B72::HEIGHT> display(GxEPD2_213_B72(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH0213B72
 //GxEPD2_BW<GxEPD2_213_B73, GxEPD2_213_B73::HEIGHT> display(GxEPD2_213_B73(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH0213B73
+//GxEPD2_BW<GxEPD2_213_B74, GxEPD2_213_B74::HEIGHT> display(GxEPD2_213_B74(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEM0213B74
 //GxEPD2_BW<GxEPD2_213_flex, GxEPD2_213_flex::HEIGHT> display(GxEPD2_213_flex(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0213I5F
 //GxEPD2_BW<GxEPD2_213_M21, GxEPD2_213_M21::HEIGHT> display(GxEPD2_213_M21(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0213M21
+//GxEPD2_BW<GxEPD2_213_T5D, GxEPD2_213_T5D::HEIGHT> display(GxEPD2_213_T5D(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0213T5D
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029T5
+//GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEM029T94
+//GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029M06
 //GxEPD2_BW<GxEPD2_260, GxEPD2_260::HEIGHT> display(GxEPD2_260(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW026T0
 //GxEPD2_BW<GxEPD2_260_M01, GxEPD2_260_M01::HEIGHT> display(GxEPD2_260_M01(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW026M01
@@ -40,14 +46,19 @@
 //GxEPD2_BW < GxEPD2_583_T8, GxEPD2_583_T8::HEIGHT / 2 > display(GxEPD2_583_T8(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0583T8  648x480
 //GxEPD2_BW < GxEPD2_750, GxEPD2_750::HEIGHT / 2 > display(GxEPD2_750(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW075T8   640x384
 //GxEPD2_BW < GxEPD2_750_T7, GxEPD2_750_T7::HEIGHT / 2 > display(GxEPD2_750_T7(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW075T7 800x480
+//GxEPD2_BW < GxEPD2_1160_T91, GxEPD2_1160_T91::HEIGHT / 2 > display(GxEPD2_1160_T91(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH116T91 960x640
 // 3-color e-papers
 //GxEPD2_3C<GxEPD2_154c, GxEPD2_154c::HEIGHT> display(GxEPD2_154c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0154Z04 no longer available
 //GxEPD2_3C<GxEPD2_154_Z90c, GxEPD2_154_Z90c::HEIGHT> display(GxEPD2_154_Z90c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH0154Z90
 //GxEPD2_3C<GxEPD2_213c, GxEPD2_213c::HEIGHT> display(GxEPD2_213c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0213Z16
+//GxEPD2_3C<GxEPD2_213_Z19c, GxEPD2_213_Z19c::HEIGHT> display(GxEPD2_213_Z19c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0213Z19
 //GxEPD2_3C<GxEPD2_290c, GxEPD2_290c::HEIGHT> display(GxEPD2_290c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW029Z10
+//GxEPD2_3C<GxEPD2_290_Z13c, GxEPD2_290_Z13c::HEIGHT> display(GxEPD2_290_Z13c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH029Z13
+//GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW027C44
 // can use only half buffer size
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT / 2> display(GxEPD2_420c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT / 2> display(GxEPD2_420c_Z21(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEQ042Z21
 // can use only quarter buffer size
 //GxEPD2_3C < GxEPD2_583c, GxEPD2_583c::HEIGHT / 4 > display(GxEPD2_583c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT / 4> display(GxEPD2_750c(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEW075Z09
@@ -61,6 +72,7 @@
 // note: 5V supply needs to be exact and strong; 5V pin of USB powered Wemos D1 mini doesn't work!
 //GxEPD2_BW<GxEPD2_it60, GxEPD2_it60::HEIGHT / 8> display(GxEPD2_it60(/*CS=5*/ SS, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 4));
 //GxEPD2_BW < GxEPD2_it60_1448x1072, GxEPD2_it60_1448x1072::HEIGHT / 8 > display(GxEPD2_it60_1448x1072(/*CS=5*/ SS, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 4));
+//GxEPD2_BW < GxEPD2_it78_1872x1404, GxEPD2_it78_1872x1404::HEIGHT / 8 > display(GxEPD2_it78_1872x1404(/*CS=5*/ SS, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 4));
 
 // ***** for mapping of Waveshare e-Paper ESP8266 Driver Board *****
 // select one , can use full buffer size (full HEIGHT)
@@ -72,11 +84,16 @@
 //GxEPD2_BW<GxEPD2_213, GxEPD2_213::HEIGHT> display(GxEPD2_213(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDE0213B1, phased out
 //GxEPD2_BW<GxEPD2_213_B72, GxEPD2_213_B72::HEIGHT> display(GxEPD2_213_B72(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEH0213B72
 //GxEPD2_BW<GxEPD2_213_B73, GxEPD2_213_B73::HEIGHT> display(GxEPD2_213_B73(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEH0213B73
+//GxEPD2_BW<GxEPD2_213_B74, GxEPD2_213_B74::HEIGHT> display(GxEPD2_213_B74(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEM0213B74
 //GxEPD2_BW<GxEPD2_213_flex, GxEPD2_213_flex::HEIGHT> display(GxEPD2_213_flex(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW0213I5F
 //GxEPD2_BW<GxEPD2_213_M21, GxEPD2_213_M21::HEIGHT> display(GxEPD2_213_M21(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW0213M21
+//GxEPD2_BW<GxEPD2_213_T5D, GxEPD2_213_T5D::HEIGHT> display(GxEPD2_213_T5D(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW0213T5D
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029T5
+//GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEM029T94
+//GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029M06
 //GxEPD2_BW<GxEPD2_260, GxEPD2_260::HEIGHT> display(GxEPD2_260(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW026T0
 //GxEPD2_BW<GxEPD2_260_M01, GxEPD2_260_M01::HEIGHT> display(GxEPD2_260_M01(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW026M01
@@ -89,14 +106,19 @@
 //GxEPD2_BW < GxEPD2_583_T8, GxEPD2_583_T8::HEIGHT / 2 > display(GxEPD2_583_T8(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW0583T8  648x480
 //GxEPD2_BW < GxEPD2_750, GxEPD2_750::HEIGHT / 2 > display(GxEPD2_750(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW075T8   640x384
 //GxEPD2_BW < GxEPD2_750_T7, GxEPD2_750_T7::HEIGHT / 2 > display(GxEPD2_750_T7(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW075T7 800x480
+//GxEPD2_BW < GxEPD2_1160_T91, GxEPD2_1160_T91::HEIGHT / 2 > display(GxEPD2_1160_T91(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEH116T91 960x640
 // 3-color e-papers
 //GxEPD2_3C<GxEPD2_154c, GxEPD2_154c::HEIGHT> display(GxEPD2_154c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW0154Z04 no longer available
 //GxEPD2_3C<GxEPD2_154_Z90c, GxEPD2_154_Z90c::HEIGHT> display(GxEPD2_154_Z90c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEH0154Z90
 //GxEPD2_3C<GxEPD2_213c, GxEPD2_213c::HEIGHT> display(GxEPD2_213c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW0213Z16
+//GxEPD2_3C<GxEPD2_213_Z19c, GxEPD2_213_Z19c::HEIGHT> display(GxEPD2_213_Z19c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW0213Z19
 //GxEPD2_3C<GxEPD2_290c, GxEPD2_290c::HEIGHT> display(GxEPD2_290c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW029Z10
+//GxEPD2_3C<GxEPD2_290_Z13c, GxEPD2_290_Z13c::HEIGHT> display(GxEPD2_290_Z13c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEH029Z13
+//GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW027C44
 // can use only half buffer size
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT / 2> display(GxEPD2_420c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT / 2> display(GxEPD2_420c_Z21(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEQ042Z21
 // can use only quarter buffer size
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT / 4> display(GxEPD2_583c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT / 4> display(GxEPD2_750c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=2*/ 2, /*BUSY=5*/ 5)); // GDEW075Z09
@@ -108,6 +130,7 @@
 
 #if defined(ESP32)
 // select one and adapt to your mapping, can use full buffer size (full HEIGHT)
+//GxEPD2_BW<GxEPD2_102, GxEPD2_102::HEIGHT> display(GxEPD2_102(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, GxEPD2_154::HEIGHT> display(GxEPD2_154(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, GxEPD2_154_T8::HEIGHT> display(GxEPD2_154_T8(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0154T8 152x152
@@ -116,11 +139,16 @@
 //GxEPD2_BW<GxEPD2_213, GxEPD2_213::HEIGHT> display(GxEPD2_213(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDE0213B1, phased out
 //GxEPD2_BW<GxEPD2_213_B72, GxEPD2_213_B72::HEIGHT> display(GxEPD2_213_B72(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEH0213B72
 //GxEPD2_BW<GxEPD2_213_B73, GxEPD2_213_B73::HEIGHT> display(GxEPD2_213_B73(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEH0213B73
+//GxEPD2_BW<GxEPD2_213_B74, GxEPD2_213_B74::HEIGHT> display(GxEPD2_213_B74(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEM0213B74
 //GxEPD2_BW<GxEPD2_213_flex, GxEPD2_213_flex::HEIGHT> display(GxEPD2_213_flex(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0213I5F
 //GxEPD2_BW<GxEPD2_213_M21, GxEPD2_213_M21::HEIGHT> display(GxEPD2_213_M21(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0213M21
+//GxEPD2_BW<GxEPD2_213_T5D, GxEPD2_213_T5D::HEIGHT> display(GxEPD2_213_T5D(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0213T5D
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029T5
+//GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEM029T94
+//GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029M06
 //GxEPD2_BW<GxEPD2_260, GxEPD2_260::HEIGHT> display(GxEPD2_260(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW026T0
 //GxEPD2_BW<GxEPD2_260_M01, GxEPD2_260_M01::HEIGHT> display(GxEPD2_260_M01(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW026M01
@@ -132,13 +160,18 @@
 //GxEPD2_BW<GxEPD2_583_T8, GxEPD2_583_T8::HEIGHT> display(GxEPD2_583_T8(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0583T8  648x480
 //GxEPD2_BW<GxEPD2_750, GxEPD2_750::HEIGHT> display(GxEPD2_750(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW075T8   640x384
 //GxEPD2_BW<GxEPD2_750_T7, GxEPD2_750_T7::HEIGHT> display(GxEPD2_750_T7(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW075T7 800x480
+//GxEPD2_BW < GxEPD2_1160_T91, GxEPD2_1160_T91::HEIGHT / 2> display(GxEPD2_1160_T91(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEH116T91 960x640
 // 3-color e-papers
 //GxEPD2_3C<GxEPD2_154c, GxEPD2_154c::HEIGHT> display(GxEPD2_154c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0154Z04 no longer available
 //GxEPD2_3C<GxEPD2_154_Z90c, GxEPD2_154_Z90c::HEIGHT> display(GxEPD2_154_Z90c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEH0154Z90
 //GxEPD2_3C<GxEPD2_213c, GxEPD2_213c::HEIGHT> display(GxEPD2_213c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0213Z16
+//GxEPD2_3C<GxEPD2_213_Z19c, GxEPD2_213_Z19c::HEIGHT> display(GxEPD2_213_Z19c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0213Z19
 //GxEPD2_3C<GxEPD2_290c, GxEPD2_290c::HEIGHT> display(GxEPD2_290c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW029Z10
+//GxEPD2_3C<GxEPD2_290_Z13c, GxEPD2_290_Z13c::HEIGHT> display(GxEPD2_290_Z13c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEH029Z13
+//GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT> display(GxEPD2_420c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT> display(GxEPD2_420c_Z21(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT> display(GxEPD2_583c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT> display(GxEPD2_750c(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, GxEPD2_750c_Z08::HEIGHT> display(GxEPD2_750c_Z08(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4)); // GDEW075Z08 800x480
@@ -152,6 +185,7 @@
 // note: 5V supply needs to be exact and strong; 5V over diode from USB (e.g. Wemos D1 mini) doesn't work!
 //GxEPD2_BW<GxEPD2_it60, GxEPD2_it60::HEIGHT> display(GxEPD2_it60(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4));
 //GxEPD2_BW < GxEPD2_it60_1448x1072, GxEPD2_it60_1448x1072::HEIGHT / 4 > display(GxEPD2_it60_1448x1072(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4));
+//GxEPD2_BW < GxEPD2_it78_1872x1404, GxEPD2_it78_1872x1404::HEIGHT / 8 > display(GxEPD2_it78_1872x1404(/*CS=5*/ SS, /*DC=*/ 17, /*RST=*/ 16, /*BUSY=*/ 4));
 
 // Waveshare 12.48 b/w SPI display board and frame or Good Display 12.48 b/w panel GDEW1248T3
 // general constructor for use with all parameters, e.g. for Waveshare ESP32 driver board mounted on connection board
@@ -165,6 +199,7 @@
 #define MAX_DISPLAY_BUFFER_SIZE 15000ul // ~15k is a good compromise
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
 // select one and adapt to your mapping
+//GxEPD2_BW<GxEPD2_102, MAX_HEIGHT(GxEPD2_102)> display(GxEPD2_102(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, MAX_HEIGHT(GxEPD2_154)> display(GxEPD2_154(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, MAX_HEIGHT(GxEPD2_154_D67)> display(GxEPD2_154_D67(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, MAX_HEIGHT(GxEPD2_154_T8)> display(GxEPD2_154_T8(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0154T8 152x152
@@ -173,11 +208,16 @@
 //GxEPD2_BW<GxEPD2_213, MAX_HEIGHT(GxEPD2_213)> display(GxEPD2_213(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDE0213B1, phased out
 //GxEPD2_BW<GxEPD2_213_B72, MAX_HEIGHT(GxEPD2_213_B72)> display(GxEPD2_213_B72(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEH0213B72
 //GxEPD2_BW<GxEPD2_213_B73, MAX_HEIGHT(GxEPD2_213_B73)> display(GxEPD2_213_B73(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEH0213B73
+//GxEPD2_BW<GxEPD2_213_B74, MAX_HEIGHT(GxEPD2_213_B74)> display(GxEPD2_213_B74(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEM0213B74
 //GxEPD2_BW<GxEPD2_213_flex, MAX_HEIGHT(GxEPD2_213_flex)> display(GxEPD2_213_flex(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0213I5F
 //GxEPD2_BW<GxEPD2_213_M21, MAX_HEIGHT(GxEPD2_213_M21)> display(GxEPD2_213_M21(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0213M21
+//GxEPD2_BW<GxEPD2_213_T5D, MAX_HEIGHT(GxEPD2_213_T5D)> display(GxEPD2_213_T5D(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0213T5D
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029T5
+//GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEM029T94
+//GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029M06
 //GxEPD2_BW<GxEPD2_260, MAX_HEIGHT(GxEPD2_260)> display(GxEPD2_260(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW026T0
 //GxEPD2_BW<GxEPD2_260_M01, MAX_HEIGHT(GxEPD2_260_M01)> display(GxEPD2_260_M01(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW026M01
@@ -189,14 +229,19 @@
 //GxEPD2_BW <GxEPD2_583_T8,  MAX_HEIGHT(GxEPD2_583_T8)> display(GxEPD2_583_T8(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0583T8  648x480
 //GxEPD2_BW<GxEPD2_750, MAX_HEIGHT(GxEPD2_750)> display(GxEPD2_750(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW075T8   640x384
 //GxEPD2_BW<GxEPD2_750_T7, MAX_HEIGHT(GxEPD2_750_T7)> display(GxEPD2_750_T7(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW075T7 800x480
+//GxEPD2_BW < GxEPD2_1160_T91, MAX_HEIGHT(GxEPD2_1160_T91)> display(GxEPD2_1160_T91(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEH116T91 960x640
 // 3-color e-papers
 #define MAX_HEIGHT_3C(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
 //GxEPD2_3C<GxEPD2_154c, MAX_HEIGHT_3C(GxEPD2_154c)> display(GxEPD2_154c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0154Z04 no longer available
 //GxEPD2_3C<GxEPD2_154_Z90c, MAX_HEIGHT_3C(GxEPD2_154_Z90c)> display(GxEPD2_154_Z90c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEH0154Z90
 //GxEPD2_3C<GxEPD2_213c, MAX_HEIGHT_3C(GxEPD2_213c)> display(GxEPD2_213c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0213Z16
+//GxEPD2_3C<GxEPD2_213_Z19c, MAX_HEIGHT_3C(GxEPD2_213_Z19c)> display(GxEPD2_213_Z19c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0213Z19
 //GxEPD2_3C<GxEPD2_290c, MAX_HEIGHT_3C(GxEPD2_290c)> display(GxEPD2_290c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW029Z10
+//GxEPD2_3C<GxEPD2_290_Z13c, MAX_HEIGHT_3C(GxEPD2_290_Z13c)> display(GxEPD2_290_Z13c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEH029Z13
+//GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=4*/ SS, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // GDEW075Z08 800x480
@@ -207,52 +252,63 @@
 #endif
 
 #if defined(__AVR)
-#if defined (ARDUINO_AVR_MEGA2560)
+#if defined (ARDUINO_AVR_MEGA2560) // Note: SS is on 53 on MEGA
 #define MAX_DISPLAY_BUFFER_SIZE 5000 // e.g. full height for 200x200
-#else
-#define MAX_DISPLAY_BUFFER_SIZE 800 // 
+#else // Note: SS is on 10 on UNO, NANO
+#define MAX_DISPLAY_BUFFER_SIZE 800
 #endif
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
 // select one and adapt to your mapping
-//GxEPD2_BW<GxEPD2_154, MAX_HEIGHT(GxEPD2_154)> display(GxEPD2_154(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEP015OC1 no longer available
-//GxEPD2_BW<GxEPD2_154_D67, MAX_HEIGHT(GxEPD2_154_D67)> display(GxEPD2_154_D67(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0154D67
-//GxEPD2_BW<GxEPD2_154_T8, MAX_HEIGHT(GxEPD2_154_T8)> display(GxEPD2_154_T8(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154T8 152x152
-//GxEPD2_BW<GxEPD2_154_M09, MAX_HEIGHT(GxEPD2_154_M09)> display(GxEPD2_154_M09(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154M09 200x200
-//GxEPD2_BW<GxEPD2_154_M10, MAX_HEIGHT(GxEPD2_154_M10)> display(GxEPD2_154_M10(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154M10 152x152
-//GxEPD2_BW<GxEPD2_213, MAX_HEIGHT(GxEPD2_213)> display(GxEPD2_213(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDE0213B1, phased out
-//GxEPD2_BW<GxEPD2_213_B72, MAX_HEIGHT(GxEPD2_213_B72)> display(GxEPD2_213_B72(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0213B72
-//GxEPD2_BW<GxEPD2_213_B73, MAX_HEIGHT(GxEPD2_213_B73)> display(GxEPD2_213_B73(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0213B73
-//GxEPD2_BW<GxEPD2_213_flex, MAX_HEIGHT(GxEPD2_213_flex)> display(GxEPD2_213_flex(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213I5F
-//GxEPD2_BW<GxEPD2_213_M21, MAX_HEIGHT(GxEPD2_213_M21)> display(GxEPD2_213_M21(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213M21
-//GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH029A1
-//GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5
-//GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94
-//GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029M06
-//GxEPD2_BW<GxEPD2_260, MAX_HEIGHT(GxEPD2_260)> display(GxEPD2_260(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW026T0
-//GxEPD2_BW<GxEPD2_260_M01, MAX_HEIGHT(GxEPD2_260_M01)> display(GxEPD2_260_M01(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW026M01
-//GxEPD2_BW<GxEPD2_270, MAX_HEIGHT(GxEPD2_270)> display(GxEPD2_270(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW027W3
-//GxEPD2_BW<GxEPD2_371, MAX_HEIGHT(GxEPD2_371)> display(GxEPD2_371(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0371W7
-//GxEPD2_BW<GxEPD2_420, MAX_HEIGHT(GxEPD2_420)> display(GxEPD2_420(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042T2
-//GxEPD2_BW<GxEPD2_420_M01, MAX_HEIGHT(GxEPD2_420_M01)> display(GxEPD2_420_M01(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042M01
-//GxEPD2_BW<GxEPD2_583, MAX_HEIGHT(GxEPD2_583)> display(GxEPD2_583(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583T7
-//GxEPD2_BW <GxEPD2_583_T8,  MAX_HEIGHT(GxEPD2_583_T8)> display(GxEPD2_583_T8(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583T8  648x480
-//GxEPD2_BW<GxEPD2_750, MAX_HEIGHT(GxEPD2_750)> display(GxEPD2_750(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075T8   640x384
-//GxEPD2_BW<GxEPD2_750_T7, MAX_HEIGHT(GxEPD2_750_T7)> display(GxEPD2_750_T7(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075T7 800x480
+//GxEPD2_BW<GxEPD2_102, MAX_HEIGHT(GxEPD2_102)> display(GxEPD2_102(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0102T4
+//GxEPD2_BW<GxEPD2_154, MAX_HEIGHT(GxEPD2_154)> display(GxEPD2_154(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEP015OC1 no longer available
+//GxEPD2_BW<GxEPD2_154_D67, MAX_HEIGHT(GxEPD2_154_D67)> display(GxEPD2_154_D67(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0154D67
+//GxEPD2_BW<GxEPD2_154_T8, MAX_HEIGHT(GxEPD2_154_T8)> display(GxEPD2_154_T8(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154T8 152x152
+//GxEPD2_BW<GxEPD2_154_M09, MAX_HEIGHT(GxEPD2_154_M09)> display(GxEPD2_154_M09(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154M09 200x200
+//GxEPD2_BW<GxEPD2_154_M10, MAX_HEIGHT(GxEPD2_154_M10)> display(GxEPD2_154_M10(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154M10 152x152
+//GxEPD2_BW<GxEPD2_213, MAX_HEIGHT(GxEPD2_213)> display(GxEPD2_213(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDE0213B1, phased out
+//GxEPD2_BW<GxEPD2_213_B72, MAX_HEIGHT(GxEPD2_213_B72)> display(GxEPD2_213_B72(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0213B72
+//GxEPD2_BW<GxEPD2_213_B73, MAX_HEIGHT(GxEPD2_213_B73)> display(GxEPD2_213_B73(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0213B73
+//GxEPD2_BW<GxEPD2_213_B74, MAX_HEIGHT(GxEPD2_213_B74)> display(GxEPD2_213_B74(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM0213B74
+//GxEPD2_BW<GxEPD2_213_flex, MAX_HEIGHT(GxEPD2_213_flex)> display(GxEPD2_213_flex(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213I5F
+//GxEPD2_BW<GxEPD2_213_M21, MAX_HEIGHT(GxEPD2_213_M21)> display(GxEPD2_213_M21(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213M21
+//GxEPD2_BW<GxEPD2_213_T5D, MAX_HEIGHT(GxEPD2_213_T5D)> display(GxEPD2_213_T5D(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213T5D
+//GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH029A1
+//GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5
+//GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029I6FD
+//GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94
+//GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
+//GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029M06
+//GxEPD2_BW<GxEPD2_260, MAX_HEIGHT(GxEPD2_260)> display(GxEPD2_260(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW026T0
+//GxEPD2_BW<GxEPD2_260_M01, MAX_HEIGHT(GxEPD2_260_M01)> display(GxEPD2_260_M01(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW026M01
+//GxEPD2_BW<GxEPD2_270, MAX_HEIGHT(GxEPD2_270)> display(GxEPD2_270(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW027W3
+//GxEPD2_BW<GxEPD2_371, MAX_HEIGHT(GxEPD2_371)> display(GxEPD2_371(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0371W7
+//GxEPD2_BW<GxEPD2_420, MAX_HEIGHT(GxEPD2_420)> display(GxEPD2_420(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042T2
+//GxEPD2_BW<GxEPD2_420_M01, MAX_HEIGHT(GxEPD2_420_M01)> display(GxEPD2_420_M01(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042M01
+//GxEPD2_BW<GxEPD2_583, MAX_HEIGHT(GxEPD2_583)> display(GxEPD2_583(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583T7
+//GxEPD2_BW <GxEPD2_583_T8,  MAX_HEIGHT(GxEPD2_583_T8)> display(GxEPD2_583_T8(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583T8  648x480
+//GxEPD2_BW<GxEPD2_750, MAX_HEIGHT(GxEPD2_750)> display(GxEPD2_750(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075T8   640x384
+//GxEPD2_BW<GxEPD2_750_T7, MAX_HEIGHT(GxEPD2_750_T7)> display(GxEPD2_750_T7(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075T7 800x480
+//GxEPD2_BW < GxEPD2_1160_T91, MAX_HEIGHT(GxEPD2_1160_T91)> display(GxEPD2_1160_T91(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH116T91 960x640
 // 3-color e-papers
 #define MAX_HEIGHT_3C(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
-//GxEPD2_3C<GxEPD2_154c, MAX_HEIGHT_3C(GxEPD2_154c)> display(GxEPD2_154c(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154Z04 no longer available
-//GxEPD2_3C<GxEPD2_154_Z90c, MAX_HEIGHT_3C(GxEPD2_154_Z90c)> display(GxEPD2_154_Z90c(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0154Z90
-//GxEPD2_3C<GxEPD2_213c, MAX_HEIGHT_3C(GxEPD2_213c)> display(GxEPD2_213c(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213Z16
-//GxEPD2_3C<GxEPD2_290c, MAX_HEIGHT_3C(GxEPD2_290c)> display(GxEPD2_290c(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029Z10
-//GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW027C44
-//GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042Z15
-//GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583Z21
-//GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z09
-//GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z08 800x480
-//GxEPD2_3C<GxEPD2_750c_Z90, MAX_HEIGHT_3C(GxEPD2_750c_Z90)> display(GxEPD2_750c_Z90(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH075Z90 880x528
+//GxEPD2_3C<GxEPD2_154c, MAX_HEIGHT_3C(GxEPD2_154c)> display(GxEPD2_154c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154Z04 no longer available
+//GxEPD2_3C<GxEPD2_154_Z90c, MAX_HEIGHT_3C(GxEPD2_154_Z90c)> display(GxEPD2_154_Z90c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0154Z90
+//GxEPD2_3C<GxEPD2_213c, MAX_HEIGHT_3C(GxEPD2_213c)> display(GxEPD2_213c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213Z16
+//GxEPD2_3C<GxEPD2_213_Z19c, MAX_HEIGHT_3C(GxEPD2_213_Z19c)> display(GxEPD2_213_Z19c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213Z19
+//GxEPD2_3C<GxEPD2_290c, MAX_HEIGHT_3C(GxEPD2_290c)> display(GxEPD2_290c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029Z10
+//GxEPD2_3C<GxEPD2_290_Z13c, MAX_HEIGHT_3C(GxEPD2_290_Z13c)> display(GxEPD2_290_Z13c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH029Z13
+//GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029C90
+//GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW027C44
+//GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEQ042Z21
+//GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583Z21
+//GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z09
+//GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z08 800x480
+//GxEPD2_3C<GxEPD2_750c_Z90, MAX_HEIGHT_3C(GxEPD2_750c_Z90)> display(GxEPD2_750c_Z90(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH075Z90 880x528
 // 7-color e-paper
 #define MAX_HEIGHT_7C(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2)) // 2 pixel per byte
-//GxEPD2_7C<GxEPD2_565c, MAX_HEIGHT_7C(GxEPD2_565c)> display(GxEPD2_565c(/*CS=10*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // Waveshare 5.65" 7-color
+//GxEPD2_7C<GxEPD2_565c, MAX_HEIGHT_7C(GxEPD2_565c)> display(GxEPD2_565c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // Waveshare 5.65" 7-color
 
 // ***** for mapping of Waveshare Universal e-Paper Raw Panel Driver Shield for Arduino / NUCLEO *****
 // the RST line is not connected through level converter, but has a pull up resistor and a pull down diode to the Arduino pin; this is safe for 5V Arduino
@@ -268,11 +324,16 @@
 //GxEPD2_BW<GxEPD2_213, MAX_HEIGHT(GxEPD2_213)> display(GxEPD2_213(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDE0213B1, phased out
 //GxEPD2_BW<GxEPD2_213_B72, MAX_HEIGHT(GxEPD2_213_B72)> display(GxEPD2_213_B72(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEH0213B72
 //GxEPD2_BW<GxEPD2_213_B73, MAX_HEIGHT(GxEPD2_213_B73)> display(GxEPD2_213_B73(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEH0213B73
+//GxEPD2_BW<GxEPD2_213_B74, MAX_HEIGHT(GxEPD2_213_B74)> display(GxEPD2_213_B74(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEM0213B74
 //GxEPD2_BW<GxEPD2_213_flex, MAX_HEIGHT(GxEPD2_213_flex)> display(GxEPD2_213_flex(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW0213I5F
 //GxEPD2_BW<GxEPD2_213_M21, MAX_HEIGHT(GxEPD2_213_M21)> display(GxEPD2_213_M21(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW0213M21
+//GxEPD2_BW<GxEPD2_213_T5D, MAX_HEIGHT(GxEPD2_213_T5D)> display(GxEPD2_213_T5D(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW0213T5D
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEH029A1
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029T5
+//GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029I6FD
 //GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEM029T94
+//GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029M06
 //GxEPD2_BW<GxEPD2_260, MAX_HEIGHT(GxEPD2_260)> display(GxEPD2_260(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW026T0
 //GxEPD2_BW<GxEPD2_260_M01, MAX_HEIGHT(GxEPD2_260_M01)> display(GxEPD2_260_M01(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW026M01
@@ -284,14 +345,19 @@
 //GxEPD2_BW <GxEPD2_583_T8, MAX_HEIGHT(GxEPD2_583_T8)> display(GxEPD2_583_T8(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW0583T8  648x480
 //GxEPD2_BW<GxEPD2_750, MAX_HEIGHT(GxEPD2_750)> display(GxEPD2_750(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW075T8   640x384
 //GxEPD2_BW<GxEPD2_750_T7, MAX_HEIGHT(GxEPD2_750_T7)> display(GxEPD2_750_T7(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW075T7 800x480
+//GxEPD2_BW < GxEPD2_1160_T91, MAX_HEIGHT(GxEPD2_1160_T91)> display(GxEPD2_1160_T91(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEH116T91 960x640
 // 3-color e-papers
 #define MAX_HEIGHT_3C(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
 //GxEPD2_3C<GxEPD2_154c, MAX_HEIGHT_3C(GxEPD2_154c)> display(GxEPD2_154c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW0154Z04 no longer available
 //GxEPD2_3C<GxEPD2_154_Z90c, MAX_HEIGHT_3C(GxEPD2_154_Z90c)> display(GxEPD2_154_Z90c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEH0154Z90
 //GxEPD2_3C<GxEPD2_213c, MAX_HEIGHT_3C(GxEPD2_213c)> display(GxEPD2_213c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW0213Z16
+//GxEPD2_3C<GxEPD2_213_Z19c, MAX_HEIGHT_3C(GxEPD2_213_Z19c)> display(GxEPD2_213_Z19c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW0213Z19
 //GxEPD2_3C<GxEPD2_290c, MAX_HEIGHT_3C(GxEPD2_290c)> display(GxEPD2_290c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW029Z10
+//GxEPD2_3C<GxEPD2_290_Z13c, MAX_HEIGHT_3C(GxEPD2_290_Z13c)> display(GxEPD2_290_Z13c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEH029Z13
+//GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW027C44
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW0583Z21
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW075Z09
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=10*/ SS, /*DC=*/ 9, /*RST=*/ 8, /*BUSY=*/ 7)); // GDEW075Z08 800x480

extras/tests/GxEPD2_RefreshTests/GxEPD2_display_selection_added.h

@@ -22,6 +22,7 @@
 #define MAX_DISPLAY_BUFFER_SIZE 32768ul // e.g., up to 96k
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
 // select one and adapt to your mapping
+//GxEPD2_BW<GxEPD2_102, MAX_HEIGHT(GxEPD2_102)> display(GxEPD2_102(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, MAX_HEIGHT(GxEPD2_154)> display(GxEPD2_154(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, MAX_HEIGHT(GxEPD2_154_D67)> display(GxEPD2_154_D67(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, MAX_HEIGHT(GxEPD2_154_T8)> display(GxEPD2_154_T8(//*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154T8 152x152
@@ -30,10 +31,16 @@
 //GxEPD2_BW<GxEPD2_213, MAX_HEIGHT(GxEPD2_213)> display(GxEPD2_213(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDE0213B1, phased out
 //GxEPD2_BW<GxEPD2_213_B72, MAX_HEIGHT(GxEPD2_213_B72)> display(GxEPD2_213_B72(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0213B72
 //GxEPD2_BW<GxEPD2_213_B73, MAX_HEIGHT(GxEPD2_213_B73)> display(GxEPD2_213_B73(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0213B73
+//GxEPD2_BW<GxEPD2_213_B74, MAX_HEIGHT(GxEPD2_213_B74)> display(GxEPD2_213_B74(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM0213B74
 //GxEPD2_BW<GxEPD2_213_flex, MAX_HEIGHT(GxEPD2_213_flex)> display(GxEPD2_213_flex(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213I5F
 //GxEPD2_BW<GxEPD2_213_M21, MAX_HEIGHT(GxEPD2_213_M21)> display(GxEPD2_213_M21(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213M21
+//GxEPD2_BW<GxEPD2_213_T5D, MAX_HEIGHT(GxEPD2_213_T5D)> display(GxEPD2_213_T5D(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213T5D
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5
+//GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029I6FD
+//GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94
+//GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029M06
 //GxEPD2_BW<GxEPD2_260, MAX_HEIGHT(GxEPD2_260)> display(GxEPD2_260(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_BW<GxEPD2_270, MAX_HEIGHT(GxEPD2_270)> display(GxEPD2_270(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
@@ -44,14 +51,19 @@
 //GxEPD2_BW<GxEPD2_583_T8, MAX_HEIGHT(GxEPD2_583_T8)> display(GxEPD2_583_T8(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_BW<GxEPD2_750, MAX_HEIGHT(GxEPD2_750)> display(GxEPD2_750(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_BW<GxEPD2_750_T7, MAX_HEIGHT(GxEPD2_750_T7)> display(GxEPD2_750_T7(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075T7 800x480
+//GxEPD2_BW < GxEPD2_1160_T91, MAX_HEIGHT(GxEPD2_1160_T91)> display(GxEPD2_1160_T91(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH116T91 960x640
 // 3-color e-papers
 #define MAX_HEIGHT_3C(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
 //GxEPD2_3C<GxEPD2_154c, MAX_HEIGHT_3C(GxEPD2_154c)> display(GxEPD2_154c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154Z04 no longer available
 //GxEPD2_3C<GxEPD2_154_Z90c, MAX_HEIGHT_3C(GxEPD2_154_Z90c)> display(GxEPD2_154_Z90c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0154Z90
 //GxEPD2_3C<GxEPD2_213c, MAX_HEIGHT_3C(GxEPD2_213c)> display(GxEPD2_213c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
+//GxEPD2_3C<GxEPD2_213_Z19c, MAX_HEIGHT_3C(GxEPD2_213_Z19c)> display(GxEPD2_213_Z19c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213Z19
 //GxEPD2_3C<GxEPD2_290c, MAX_HEIGHT_3C(GxEPD2_290c)> display(GxEPD2_290c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
+//GxEPD2_3C<GxEPD2_290_Z13c, MAX_HEIGHT_3C(GxEPD2_290_Z13c)> display(GxEPD2_290_Z13c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH029Z13
+//GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z08 800x480
@@ -64,6 +76,7 @@
 // note: 5V supply needs to be exact and strong; 5V over diode from USB (e.g. Wemos D1 mini) doesn't work!
 //GxEPD2_BW<GxEPD2_it60, MAX_HEIGHT(GxEPD2_it60)> display(GxEPD2_it60(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 //GxEPD2_BW<GxEPD2_it60_1448x1072, MAX_HEIGHT(GxEPD2_it60_1448x1072)> display(GxEPD2_it60_1448x1072(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
+//GxEPD2_BW<GxEPD2_it78_1872x1404, MAX_HEIGHT(GxEPD2_it78_1872x1404)> display(GxEPD2_it78_1872x1404(/*CS=77*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 #endif
 
 // Arduino MKR1000 or MKRZERO
@@ -76,6 +89,7 @@
 #define MAX_DISPLAY_BUFFER_SIZE 15000ul // ~15k is a good compromise
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
 // select one and adapt to your mapping
+//GxEPD2_BW<GxEPD2_102, MAX_HEIGHT(GxEPD2_102)> display(GxEPD2_102(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, MAX_HEIGHT(GxEPD2_154)> display(GxEPD2_154(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, MAX_HEIGHT(GxEPD2_154_D67)> display(GxEPD2_154_D67(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, GxEPD2_154_T8::HEIGHT> display(GxEPD2_154_T8(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW0154T8 152x152
@@ -84,10 +98,16 @@
 //GxEPD2_BW<GxEPD2_213, MAX_HEIGHT(GxEPD2_213)> display(GxEPD2_213(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDE0213B1, phased out
 //GxEPD2_BW<GxEPD2_213_B72, MAX_HEIGHT(GxEPD2_213_B72)> display(GxEPD2_213_B72(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEH0213B72
 //GxEPD2_BW<GxEPD2_213_B73, MAX_HEIGHT(GxEPD2_213_B73)> display(GxEPD2_213_B73(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEH0213B73
+//GxEPD2_BW<GxEPD2_213_B74, MAX_HEIGHT(GxEPD2_213_B74)> display(GxEPD2_213_B74(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEM0213B74
 //GxEPD2_BW<GxEPD2_213_flex, MAX_HEIGHT(GxEPD2_213_flex)> display(GxEPD2_213_flex(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW0213I5F
 //GxEPD2_BW<GxEPD2_213_M21, MAX_HEIGHT(GxEPD2_213_M21)> display(GxEPD2_213_M21(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW0213M21
+//GxEPD2_BW<GxEPD2_213_T5D, MAX_HEIGHT(GxEPD2_213_T5D)> display(GxEPD2_213_T5D(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW0213T5D
 //GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029T5
+//GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029I6FD
+//GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEM029T94
+//GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW029M06
 //GxEPD2_BW<GxEPD2_260, MAX_HEIGHT(GxEPD2_260)> display(GxEPD2_260(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_BW<GxEPD2_270, MAX_HEIGHT(GxEPD2_270)> display(GxEPD2_270(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
@@ -98,14 +118,19 @@
 //GxEPD2_BW<GxEPD2_583_T8, MAX_HEIGHT(GxEPD2_583_T8)> display(GxEPD2_583_T8(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_BW<GxEPD2_750, MAX_HEIGHT(GxEPD2_750)> display(GxEPD2_750(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_BW<GxEPD2_750_T7, MAX_HEIGHT(GxEPD2_750_T7)> display(GxEPD2_750_T7(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW075T7 800x480
+//GxEPD2_BW < GxEPD2_1160_T91, MAX_HEIGHT(GxEPD2_1160_T91)> display(GxEPD2_1160_T91(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEH116T91 960x640
 // 3-color e-papers
 #define MAX_HEIGHT_3C(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
 //GxEPD2_3C<GxEPD2_154c, MAX_HEIGHT_3C(GxEPD2_154c)> display(GxEPD2_154c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW0154Z04 no longer available
 //GxEPD2_3C<GxEPD2_154_Z90c, MAX_HEIGHT_3C(GxEPD2_154_Z90c)> display(GxEPD2_154_Z90c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEH0154Z90
 //GxEPD2_3C<GxEPD2_213c, MAX_HEIGHT_3C(GxEPD2_213c)> display(GxEPD2_213c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
+//GxEPD2_3C<GxEPD2_213_Z19c, MAX_HEIGHT_3C(GxEPD2_213_Z19c)> display(GxEPD2_213_Z19c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW0213Z19
 //GxEPD2_3C<GxEPD2_290c, MAX_HEIGHT_3C(GxEPD2_290c)> display(GxEPD2_290c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
+//GxEPD2_3C<GxEPD2_290_Z13c, MAX_HEIGHT_3C(GxEPD2_290_Z13c)> display(GxEPD2_290_Z13c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEH029Z13
+//GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5)); // GDEW075Z08 800x480
@@ -118,6 +143,7 @@
 // note: 5V supply needs to be exact and strong; 5V over diode from USB (e.g. Wemos D1 mini) doesn't work!
 //GxEPD2_BW<GxEPD2_it60, MAX_HEIGHT(GxEPD2_it60)> display(GxEPD2_it60(/*CS=77*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 //GxEPD2_BW<GxEPD2_it60_1448x1072, MAX_HEIGHT(GxEPD2_it60_1448x1072)> display(GxEPD2_it60_1448x1072(/*CS=77*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
+//GxEPD2_BW<GxEPD2_it78_1872x1404, MAX_HEIGHT(GxEPD2_it78_1872x1404)> display(GxEPD2_it78_1872x1404(/*CS=77*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
 #endif
 
 // mapping suggestion for ESP32, e.g. LOLIN32 D32 PRO
@@ -126,6 +152,7 @@
 
 #if defined(ESP32) && defined(ARDUINO_LOLIN_D32_PRO)
 // select one and adapt to your mapping, can use full buffer size (full HEIGHT)
+//GxEPD2_BW<GxEPD2_102, GxEPD2_102::HEIGHT> display(GxEPD2_102(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, GxEPD2_154::HEIGHT> display(GxEPD2_154(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, GxEPD2_154_T8::HEIGHT> display(GxEPD2_154_T8(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW0154T8 152x152
@@ -134,10 +161,16 @@
 //GxEPD2_BW<GxEPD2_213, GxEPD2_213::HEIGHT> display(GxEPD2_213(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDE0213B1, phased out
 //GxEPD2_BW<GxEPD2_213_B72, GxEPD2_213_B72::HEIGHT> display(GxEPD2_213_B72(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEH0213B72
 //GxEPD2_BW<GxEPD2_213_B73, GxEPD2_213_B73::HEIGHT> display(GxEPD2_213_B73(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEH0213B73
+//GxEPD2_BW<GxEPD2_213_B74, GxEPD2_213_B74::HEIGHT> display(GxEPD2_213_B74(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEM0213B74
 //GxEPD2_BW<GxEPD2_213_flex, GxEPD2_213_flex::HEIGHT> display(GxEPD2_213_flex(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW0213I5F
 //GxEPD2_BW<GxEPD2_213_M21, GxEPD2_213_M21::HEIGHT> display(GxEPD2_213_M21(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW0213M21
+//GxEPD2_BW<GxEPD2_213_T5D, GxEPD2_213_T5D::HEIGHT> display(GxEPD2_213_T5D(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW0213T5D
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029T5
+//GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029I6FD
+//GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEM029T94
+//GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW029M06
 //GxEPD2_BW<GxEPD2_260, GxEPD2_260::HEIGHT> display(GxEPD2_260(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_BW<GxEPD2_270, GxEPD2_270::HEIGHT> display(GxEPD2_270(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
@@ -148,13 +181,18 @@
 //GxEPD2_BW<GxEPD2_583_T8, GxEPD2_583_T8::HEIGHT> display(GxEPD2_583_T8(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_BW<GxEPD2_750, GxEPD2_750::HEIGHT> display(GxEPD2_750(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_BW<GxEPD2_750_T7, GxEPD2_750_T7::HEIGHT> display(GxEPD2_750_T7(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW075T7 800x480
+//GxEPD2_BW < GxEPD2_1160_T91, GxEPD2_1160_T91::HEIGHT / 2> display(GxEPD2_1160_T91(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEH116T91 960x640
 // 3-color e-papers
 //GxEPD2_3C<GxEPD2_154c, GxEPD2_154c::HEIGHT> display(GxEPD2_154c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW0154Z04 no longer available
 //GxEPD2_3C<GxEPD2_154_Z90c, GxEPD2_154_Z90c::HEIGHT> display(GxEPD2_154_Z90c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEH0154Z90
 //GxEPD2_3C<GxEPD2_213c, GxEPD2_213c::HEIGHT> display(GxEPD2_213c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
+//GxEPD2_3C<GxEPD2_213_Z19c, GxEPD2_213_Z19c::HEIGHT> display(GxEPD2_213_Z19c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW0213Z19
 //GxEPD2_3C<GxEPD2_290c, GxEPD2_290c::HEIGHT> display(GxEPD2_290c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
+//GxEPD2_3C<GxEPD2_290_Z13c, GxEPD2_290_Z13c::HEIGHT> display(GxEPD2_290_Z13c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEH029Z13
+//GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT> display(GxEPD2_420c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT> display(GxEPD2_420c_Z21(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT> display(GxEPD2_583c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT> display(GxEPD2_750c(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_3C<GxEPD2_750c_Z08, GxEPD2_750c_Z08::HEIGHT> display(GxEPD2_750c_Z08(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15)); // GDEW075Z08 800x480
@@ -166,6 +204,7 @@
 // note: 5V supply needs to be exact and strong; 5V over diode from USB (e.g. Wemos D1 mini) doesn't work!
 //GxEPD2_BW<GxEPD2_it60, GxEPD2_it60::HEIGHT> display(GxEPD2_it60(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 //GxEPD2_BW < GxEPD2_it60_1448x1072, GxEPD2_it60_1448x1072::HEIGHT / 4 > display(GxEPD2_it60_1448x1072(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
+//GxEPD2_BW < GxEPD2_it78_1872x1404, GxEPD2_it78_1872x1404::HEIGHT / 8 > display(GxEPD2_it78_1872x1404(/*CS=5*/ 5, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 #endif
 
 // mapping suggestion for ESP32, e.g. TTGO T8 ESP32-WROVER
@@ -174,6 +213,7 @@
 
 #if defined(ESP32) && defined(ARDUINO_ESP32_DEV)
 // select one and adapt to your mapping, can use full buffer size (full HEIGHT)
+//GxEPD2_BW<GxEPD2_102, GxEPD2_102::HEIGHT> display(GxEPD2_102(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW0102T4
 //GxEPD2_BW<GxEPD2_154, GxEPD2_154::HEIGHT> display(GxEPD2_154(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEP015OC1 no longer available
 //GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEH0154D67
 //GxEPD2_BW<GxEPD2_154_T8, GxEPD2_154_T8::HEIGHT> display(GxEPD2_154_T8(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW0154T8 152x152
@@ -182,10 +222,16 @@
 //GxEPD2_BW<GxEPD2_213, GxEPD2_213::HEIGHT> display(GxEPD2_213(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDE0213B1, phased out
 //GxEPD2_BW<GxEPD2_213_B72, GxEPD2_213_B72::HEIGHT> display(GxEPD2_213_B72(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEH0213B72
 //GxEPD2_BW<GxEPD2_213_B73, GxEPD2_213_B73::HEIGHT> display(GxEPD2_213_B73(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEH0213B73
+//GxEPD2_BW<GxEPD2_213_B74, GxEPD2_213_B74::HEIGHT> display(GxEPD2_213_B74(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEM0213B74
 //GxEPD2_BW<GxEPD2_213_flex, GxEPD2_213_flex::HEIGHT> display(GxEPD2_213_flex(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW0213I5F
 //GxEPD2_BW<GxEPD2_213_M21, GxEPD2_213_M21::HEIGHT> display(GxEPD2_213_M21(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW0213M21
+//GxEPD2_BW<GxEPD2_213_T5D, GxEPD2_213_T5D::HEIGHT> display(GxEPD2_213_T5D(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW0213T5D
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029T5
+//GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029I6FD
+//GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEM029T94
+//GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW029M06
 //GxEPD2_BW<GxEPD2_260, GxEPD2_260::HEIGHT> display(GxEPD2_260(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_BW<GxEPD2_270, GxEPD2_270::HEIGHT> display(GxEPD2_270(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
@@ -196,13 +242,18 @@
 //GxEPD2_BW<GxEPD2_583_T8, GxEPD2_583_T8::HEIGHT> display(GxEPD2_583_T8(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_BW<GxEPD2_750, GxEPD2_750::HEIGHT> display(GxEPD2_750(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_BW<GxEPD2_750_T7, GxEPD2_750_T7::HEIGHT> display(GxEPD2_750_T7(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW075T7 800x480
+//GxEPD2_BW < GxEPD2_1160_T91, GxEPD2_1160_T91::HEIGHT / 2> display(GxEPD2_1160_T91(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEH116T91 960x640
 // 3-color e-papers
 //GxEPD2_3C<GxEPD2_154c, GxEPD2_154c::HEIGHT> display(GxEPD2_154c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW0154Z04 no longer available
 //GxEPD2_3C<GxEPD2_154_Z90c, GxEPD2_154_Z90c::HEIGHT> display(GxEPD2_154_Z90c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEH0154Z90
 //GxEPD2_3C<GxEPD2_213c, GxEPD2_213c::HEIGHT> display(GxEPD2_213c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
+//GxEPD2_3C<GxEPD2_213_Z19c, GxEPD2_213_Z19c::HEIGHT> display(GxEPD2_213_Z19c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW0213Z19
 //GxEPD2_3C<GxEPD2_290c, GxEPD2_290c::HEIGHT> display(GxEPD2_290c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
+//GxEPD2_3C<GxEPD2_290_Z13c, GxEPD2_290_Z13c::HEIGHT> display(GxEPD2_290_Z13c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEH029Z13
+//GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT> display(GxEPD2_420c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT> display(GxEPD2_420c_Z21(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEQ042Z21
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT> display(GxEPD2_583c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT> display(GxEPD2_750c(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_3C<GxEPD2_750c_Z08, GxEPD2_750c_Z08::HEIGHT> display(GxEPD2_750c_Z08(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4)); // GDEW075Z08 800x480
@@ -214,6 +265,7 @@
 // note: 5V supply needs to be exact and strong; 5V over diode from USB (e.g. Wemos D1 mini) doesn't work!
 //GxEPD2_BW<GxEPD2_it60, GxEPD2_it60::HEIGHT> display(GxEPD2_it60(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 //GxEPD2_BW < GxEPD2_it60_1448x1072, GxEPD2_it60_1448x1072::HEIGHT / 4 > display(GxEPD2_it60_1448x1072(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
+//GxEPD2_BW < GxEPD2_it78_1872x1404, GxEPD2_it78_1872x1404::HEIGHT / 8 > display(GxEPD2_it78_1872x1404(/*CS=5*/ 5, /*DC=*/ 2, /*RST=*/ 0, /*BUSY=*/ 4));
 #endif
 
 // mapping of Waveshare e-Paper ESP8266 Driver Board, old version
@@ -231,10 +283,16 @@
 //GxEPD2_BW<GxEPD2_213, GxEPD2_213::HEIGHT> display(GxEPD2_213(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDE0213B1, phased out
 //GxEPD2_BW<GxEPD2_213_B72, GxEPD2_213_B72::HEIGHT> display(GxEPD2_213_B72(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEH0213B72
 //GxEPD2_BW<GxEPD2_213_B73, GxEPD2_213_B73::HEIGHT> display(GxEPD2_213_B73(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEH0213B73
+//GxEPD2_BW<GxEPD2_213_B74, GxEPD2_213_B74::HEIGHT> display(GxEPD2_213_B74(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEM0213B74
 //GxEPD2_BW<GxEPD2_213_flex, GxEPD2_213_flex::HEIGHT> display(GxEPD2_213_flex(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW0213I5F
 //GxEPD2_BW<GxEPD2_213_M21, GxEPD2_213_M21::HEIGHT> display(GxEPD2_213_M21(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW0213M21
+//GxEPD2_BW<GxEPD2_213_T5D, GxEPD2_213_T5D::HEIGHT> display(GxEPD2_213_T5D(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW0213T5D
 //GxEPD2_BW<GxEPD2_290, GxEPD2_290::HEIGHT> display(GxEPD2_290(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 //GxEPD2_BW<GxEPD2_290_T5, GxEPD2_290_T5::HEIGHT> display(GxEPD2_290_T5(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029T5
+//GxEPD2_BW<GxEPD2_290_T5D, GxEPD2_290_T5D::HEIGHT> display(GxEPD2_290_T5D(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, GxEPD2_290_I6FD::HEIGHT> display(GxEPD2_290_I6FD(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029I6FD
+//GxEPD2_BW<GxEPD2_290_T94, GxEPD2_290_T94::HEIGHT> display(GxEPD2_290_T94(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEM029T94
+//GxEPD2_BW<GxEPD2_290_T94_V2, GxEPD2_290_T94_V2::HEIGHT> display(GxEPD2_290_T94_V2(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEM029T94, Waveshare 2.9" V2 variant
 //GxEPD2_BW<GxEPD2_290_M06, GxEPD2_290_M06::HEIGHT> display(GxEPD2_290_M06(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW029M06
 //GxEPD2_BW<GxEPD2_260, GxEPD2_260::HEIGHT> display(GxEPD2_260(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 //GxEPD2_BW<GxEPD2_270, GxEPD2_270::HEIGHT> display(GxEPD2_270(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
@@ -246,14 +304,19 @@
 //GxEPD2_BW < GxEPD2_583_T8, GxEPD2_583_T8::HEIGHT / 2 > display(GxEPD2_583_T8(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 //GxEPD2_BW < GxEPD2_750, GxEPD2_750::HEIGHT / 2 > display(GxEPD2_750(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 //GxEPD2_BW < GxEPD2_750_T7, GxEPD2_750_T7::HEIGHT / 2 > display(GxEPD2_750_T7(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW075T7 800x480
+//GxEPD2_BW < GxEPD2_1160_T91, GxEPD2_1160_T91::HEIGHT / 2 > display(GxEPD2_1160_T91(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEH116T91 960x640
 // 3-color e-papers
 //GxEPD2_3C<GxEPD2_154c, GxEPD2_154c::HEIGHT> display(GxEPD2_154c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW0154Z04 no longer available
 //GxEPD2_3C<GxEPD2_154_Z90c, GxEPD2_154_Z90c::HEIGHT> display(GxEPD2_154_Z90c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEH0154Z90
 //GxEPD2_3C<GxEPD2_213c, GxEPD2_213c::HEIGHT> display(GxEPD2_213c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
+//GxEPD2_3C<GxEPD2_213_Z19c, GxEPD2_213_Z19c::HEIGHT> display(GxEPD2_213_Z19c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEW0213Z19
 //GxEPD2_3C<GxEPD2_290c, GxEPD2_290c::HEIGHT> display(GxEPD2_290c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
+//GxEPD2_3C<GxEPD2_290_Z13c, GxEPD2_290_Z13c::HEIGHT> display(GxEPD2_290_Z13c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEH029Z13
+//GxEPD2_3C<GxEPD2_290_C90c, GxEPD2_290_C90c::HEIGHT> display(GxEPD2_290_C90c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEM029C90
 //GxEPD2_3C<GxEPD2_270c, GxEPD2_270c::HEIGHT> display(GxEPD2_270c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 // can use only half buffer size
 //GxEPD2_3C<GxEPD2_420c, GxEPD2_420c::HEIGHT / 2> display(GxEPD2_420c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
+//GxEPD2_3C<GxEPD2_420c_Z21, GxEPD2_420c_Z21::HEIGHT / 2> display(GxEPD2_420c_Z21(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // GDEQ042Z21
 // can use only quarter buffer size
 //GxEPD2_3C<GxEPD2_583c, GxEPD2_583c::HEIGHT / 4> display(GxEPD2_583c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
 //GxEPD2_3C<GxEPD2_750c, GxEPD2_750c::HEIGHT / 4> display(GxEPD2_750c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16));
@@ -263,4 +326,60 @@
 //GxEPD2_7C < GxEPD2_565c, GxEPD2_565c::HEIGHT / 4 > display(GxEPD2_565c(/*CS=15*/ SS, /*DC=4*/ 4, /*RST=5*/ 5, /*BUSY=16*/ 16)); // Waveshare 5.65" 7-color
 #endif
 
+#if defined(ARDUINO_ARCH_RP2040)
+#define MAX_DISPLAY_BUFFER_SIZE 131072ul // e.g. half of available ram
+#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
+// select one and adapt to your mapping
+//GxEPD2_BW<GxEPD2_102, MAX_HEIGHT(GxEPD2_102)> display(GxEPD2_102(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0102T4
+//GxEPD2_BW<GxEPD2_154, MAX_HEIGHT(GxEPD2_154)> display(GxEPD2_154(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEP015OC1 no longer available
+//GxEPD2_BW<GxEPD2_154_D67, MAX_HEIGHT(GxEPD2_154_D67)> display(GxEPD2_154_D67(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0154D67
+//GxEPD2_BW<GxEPD2_154_T8, MAX_HEIGHT(GxEPD2_154_T8)> display(GxEPD2_154_T8(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154T8 152x152
+//GxEPD2_BW<GxEPD2_154_M09, MAX_HEIGHT(GxEPD2_154_M09)> display(GxEPD2_154_M09(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154M09 200x200
+//GxEPD2_BW<GxEPD2_154_M10, MAX_HEIGHT(GxEPD2_154_M10)> display(GxEPD2_154_M10(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154M10 152x152
+//GxEPD2_BW<GxEPD2_213, MAX_HEIGHT(GxEPD2_213)> display(GxEPD2_213(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDE0213B1, phased out
+//GxEPD2_BW<GxEPD2_213_B72, MAX_HEIGHT(GxEPD2_213_B72)> display(GxEPD2_213_B72(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0213B72
+//GxEPD2_BW<GxEPD2_213_B73, MAX_HEIGHT(GxEPD2_213_B73)> display(GxEPD2_213_B73(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0213B73
+//GxEPD2_BW<GxEPD2_213_B74, MAX_HEIGHT(GxEPD2_213_B74)> display(GxEPD2_213_B74(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM0213B74
+//GxEPD2_BW<GxEPD2_213_flex, MAX_HEIGHT(GxEPD2_213_flex)> display(GxEPD2_213_flex(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213I5F
+//GxEPD2_BW<GxEPD2_213_M21, MAX_HEIGHT(GxEPD2_213_M21)> display(GxEPD2_213_M21(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213M21
+//GxEPD2_BW<GxEPD2_213_T5D, MAX_HEIGHT(GxEPD2_213_T5D)> display(GxEPD2_213_T5D(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213T5D
+//GxEPD2_BW<GxEPD2_290, MAX_HEIGHT(GxEPD2_290)> display(GxEPD2_290(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH029A1
+//GxEPD2_BW<GxEPD2_290_T5, MAX_HEIGHT(GxEPD2_290_T5)> display(GxEPD2_290_T5(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5
+//GxEPD2_BW<GxEPD2_290_T5D, MAX_HEIGHT(GxEPD2_290_T5D)> display(GxEPD2_290_T5D(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029T5D
+//GxEPD2_BW<GxEPD2_290_I6FD, MAX_HEIGHT(GxEPD2_290_I6FD)> display(GxEPD2_290_I6FD(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029I6FD
+//GxEPD2_BW<GxEPD2_290_T94, MAX_HEIGHT(GxEPD2_290_T94)> display(GxEPD2_290_T94(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94
+//GxEPD2_BW<GxEPD2_290_T94_V2, MAX_HEIGHT(GxEPD2_290_T94_V2)> display(GxEPD2_290_T94_V2(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029T94, Waveshare 2.9" V2 variant
+//GxEPD2_BW<GxEPD2_290_M06, MAX_HEIGHT(GxEPD2_290_M06)> display(GxEPD2_290_M06(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029M06
+//GxEPD2_BW<GxEPD2_260, MAX_HEIGHT(GxEPD2_260)> display(GxEPD2_260(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW026T0
+//GxEPD2_BW<GxEPD2_260_M01, MAX_HEIGHT(GxEPD2_260_M01)> display(GxEPD2_260_M01(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW026M01
+//GxEPD2_BW<GxEPD2_270, MAX_HEIGHT(GxEPD2_270)> display(GxEPD2_270(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW027W3
+//GxEPD2_BW<GxEPD2_371, MAX_HEIGHT(GxEPD2_371)> display(GxEPD2_371(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0371W7
+//GxEPD2_BW<GxEPD2_420, MAX_HEIGHT(GxEPD2_420)> display(GxEPD2_420(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042T2
+//GxEPD2_BW<GxEPD2_420_M01, MAX_HEIGHT(GxEPD2_420_M01)> display(GxEPD2_420_M01(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042M01
+//GxEPD2_BW<GxEPD2_583, MAX_HEIGHT(GxEPD2_583)> display(GxEPD2_583(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583T7
+//GxEPD2_BW <GxEPD2_583_T8,  MAX_HEIGHT(GxEPD2_583_T8)> display(GxEPD2_583_T8(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583T8  648x480
+//GxEPD2_BW<GxEPD2_750, MAX_HEIGHT(GxEPD2_750)> display(GxEPD2_750(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075T8   640x384
+//GxEPD2_BW<GxEPD2_750_T7, MAX_HEIGHT(GxEPD2_750_T7)> display(GxEPD2_750_T7(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075T7 800x480
+//GxEPD2_BW < GxEPD2_1160_T91, MAX_HEIGHT(GxEPD2_1160_T91)> display(GxEPD2_1160_T91(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH116T91 960x640
+// 3-color e-papers
+#define MAX_HEIGHT_3C(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
+//GxEPD2_3C<GxEPD2_154c, MAX_HEIGHT_3C(GxEPD2_154c)> display(GxEPD2_154c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0154Z04 no longer available
+//GxEPD2_3C<GxEPD2_154_Z90c, MAX_HEIGHT_3C(GxEPD2_154_Z90c)> display(GxEPD2_154_Z90c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH0154Z90
+//GxEPD2_3C<GxEPD2_213c, MAX_HEIGHT_3C(GxEPD2_213c)> display(GxEPD2_213c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213Z16
+//GxEPD2_3C<GxEPD2_213_Z19c, MAX_HEIGHT_3C(GxEPD2_213_Z19c)> display(GxEPD2_213_Z19c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0213Z19
+//GxEPD2_3C<GxEPD2_290c, MAX_HEIGHT_3C(GxEPD2_290c)> display(GxEPD2_290c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW029Z10
+//GxEPD2_3C<GxEPD2_290_Z13c, MAX_HEIGHT_3C(GxEPD2_290_Z13c)> display(GxEPD2_290_Z13c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH029Z13
+//GxEPD2_3C<GxEPD2_290_C90c, MAX_HEIGHT_3C(GxEPD2_290_C90c)> display(GxEPD2_290_C90c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEM029C90
+//GxEPD2_3C<GxEPD2_270c, MAX_HEIGHT_3C(GxEPD2_270c)> display(GxEPD2_270c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW027C44
+//GxEPD2_3C<GxEPD2_420c, MAX_HEIGHT_3C(GxEPD2_420c)> display(GxEPD2_420c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW042Z15
+//GxEPD2_3C<GxEPD2_420c_Z21, MAX_HEIGHT_3C(GxEPD2_420c_Z21)> display(GxEPD2_420c_Z21(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEQ042Z21
+//GxEPD2_3C<GxEPD2_583c, MAX_HEIGHT_3C(GxEPD2_583c)> display(GxEPD2_583c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW0583Z21
+//GxEPD2_3C<GxEPD2_750c, MAX_HEIGHT_3C(GxEPD2_750c)> display(GxEPD2_750c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z09
+//GxEPD2_3C<GxEPD2_750c_Z08, MAX_HEIGHT_3C(GxEPD2_750c_Z08)> display(GxEPD2_750c_Z08(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEW075Z08 800x480
+//GxEPD2_3C<GxEPD2_750c_Z90, MAX_HEIGHT_3C(GxEPD2_750c_Z90)> display(GxEPD2_750c_Z90(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // GDEH075Z90 880x528
+// 7-color e-paper
+#define MAX_HEIGHT_7C(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2)) // 2 pixel per byte
+//GxEPD2_7C<GxEPD2_565c, MAX_HEIGHT_7C(GxEPD2_565c)> display(GxEPD2_565c(/*CS=*/ SS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7)); // Waveshare 5.65" 7-color
+#endif
+
 #endif

extras/tests/GxEPD2_RefreshTests/GxEPD2_display_selection_new_style.h

@@ -19,47 +19,59 @@
 //#define GxEPD2_DISPLAY_CLASS GxEPD2_7C
 
 // select the display driver class (only one) for your  panel
-//#define GxEPD2_DRIVER_CLASS GxEPD2_154     // GDEP015OC1  200x200, no longer available
-//#define GxEPD2_DRIVER_CLASS GxEPD2_154_D67 // GDEH0154D67 200x200
-//#define GxEPD2_DRIVER_CLASS GxEPD2_154_T8  // GDEW0154T8  152x152
-//#define GxEPD2_DRIVER_CLASS GxEPD2_154_M09 // GDEW0154M09 200x200
-//#define GxEPD2_DRIVER_CLASS GxEPD2_154_M10 // GDEW0154M10 152x152
-//#define GxEPD2_DRIVER_CLASS GxEPD2_213     // GDE0213B1   128x250, phased out
-//#define GxEPD2_DRIVER_CLASS GxEPD2_213_B72 // GDEH0213B72 128x250
-//#define GxEPD2_DRIVER_CLASS GxEPD2_213_B73 // GDEH0213B73 128x250
-//#define GxEPD2_DRIVER_CLASS GxEPD2_213_flex // GDEW0213I5F 128x250
-//#define GxEPD2_DRIVER_CLASS GxEPD2_213_M21 // GDEW0213M21 128x250
-//#define GxEPD2_DRIVER_CLASS GxEPD2_290     // GDEH029A1   128x296
-//#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5  // GDEW029T5   128x296
-//#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94 // GDEM029T94  128x296
-//#define GxEPD2_DRIVER_CLASS GxEPD2_290_M06 // GDEW029M06  128x296
-//#define GxEPD2_DRIVER_CLASS GxEPD2_260     // GDEW026T0   152x296
-//#define GxEPD2_DRIVER_CLASS GxEPD2_260_M01 // GDEW026M01  152x296
-//#define GxEPD2_DRIVER_CLASS GxEPD2_270     // GDEW027W3   176x264
-//#define GxEPD2_DRIVER_CLASS GxEPD2_371     // GDEW0371W7  240x416
-//#define GxEPD2_DRIVER_CLASS GxEPD2_420     // GDEW042T2   400x300
-//#define GxEPD2_DRIVER_CLASS GxEPD2_420_M01 // GDEW042M01  400x300
-//#define GxEPD2_DRIVER_CLASS GxEPD2_583     // GDEW0583T7  600x448
-//#define GxEPD2_DRIVER_CLASS GxEPD2_583_T8  // GDEW0583T8  648x480
-//#define GxEPD2_DRIVER_CLASS GxEPD2_750     // GDEW075T8   640x384
-//#define GxEPD2_DRIVER_CLASS GxEPD2_750_T7  // GDEW075T7   800x480
+//#define GxEPD2_DRIVER_CLASS GxEPD2_102     // GxEPD2_102   80x128, UC8175
+//#define GxEPD2_DRIVER_CLASS GxEPD2_154     // GDEP015OC1  200x200, IL3829, no longer available
+//#define GxEPD2_DRIVER_CLASS GxEPD2_154_D67 // GDEH0154D67 200x200, SSD1681
+//#define GxEPD2_DRIVER_CLASS GxEPD2_154_T8  // GDEW0154T8  152x152, UC8151 (IL0373)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_154_M09 // GDEW0154M09 200x200, JD79653A
+//#define GxEPD2_DRIVER_CLASS GxEPD2_154_M10 // GDEW0154M10 152x152, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_213     // GDE0213B1   128x250, IL3895, phased out
+//#define GxEPD2_DRIVER_CLASS GxEPD2_213_B72 // GDEH0213B72 128x250, SSD1675A (IL3897)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_213_B73 // GDEH0213B73 128x250, SSD1675B
+//#define GxEPD2_DRIVER_CLASS GxEPD2_213_B74 // GDEM0213B74 128x250, SSD1680
+//#define GxEPD2_DRIVER_CLASS GxEPD2_213_flex // GDEW0213I5F 104x212, UC8151 (IL0373)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_213_M21 // GDEW0213M21 104x212, UC8151 (IL0373)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_213_T5D // GDEW0213T5D 104x212, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290     // GDEH029A1   128x296, SSD1608 (IL3820)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5  // GDEW029T5   128x296, UC8151 (IL0373)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_T5D // GDEW029T5D  128x296, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_I6FD // GDEW029I6FD  128x296, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94 // GDEM029T94  128x296, SSD1680
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_T94_V2 // GDEM029T94  128x296, SSD1680, Waveshare 2.9" V2 variant
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_M06 // GDEW029M06  128x296, UC8151 (IL0373)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_260     // GDEW026T0   152x296, UC8151 (IL0373)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_260_M01 // GDEW026M01  152x296, UC8151 (IL0373)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_270     // GDEW027W3   176x264, EK79652 (IL91874)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_371     // GDEW0371W7  240x416, UC8171 (IL0324)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420     // GDEW042T2   400x300, UC8176 (IL0398)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420_M01 // GDEW042M01  400x300, UC8176 (IL0398)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_583     // GDEW0583T7  600x448, UC8179 (IL0371)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_583_T8  // GDEW0583T8  648x480, GD7965
+//#define GxEPD2_DRIVER_CLASS GxEPD2_750     // GDEW075T8   640x384, UC8179 (IL0371)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_750_T7  // GDEW075T7   800x480, GD7965
+//#define GxEPD2_DRIVER_CLASS GxEPD2_1160_T91 // GDEH116T91 960x640, SSD1677
+//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984, UC8179
 // 3-color e-papers
-//#define GxEPD2_DRIVER_CLASS GxEPD2_154c     // GDEW0154Z04 200x200, no longer available
-//#define GxEPD2_DRIVER_CLASS GxEPD2_154_Z90c // GDEH0154Z90 200x200
-//#define GxEPD2_DRIVER_CLASS GxEPD2_213c     // GDEW0213Z16 104x212
-//#define GxEPD2_DRIVER_CLASS GxEPD2_290c     // GDEW029Z10  128x296
-//#define GxEPD2_DRIVER_CLASS GxEPD2_270c     // GDEW027C44  176x264
-//#define GxEPD2_DRIVER_CLASS GxEPD2_420c     // GDEW042Z15  400x300
-//#define GxEPD2_DRIVER_CLASS GxEPD2_583c     // GDEW0583Z21 600x448
-//#define GxEPD2_DRIVER_CLASS GxEPD2_750c     // GDEW075Z09  600x384
-//#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z08 // GDEW075Z08  800x480
-//#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z90 // GDEH075Z90  880x528
-//#define GxEPD2_DRIVER_CLASS GxEPD2_1248     // GDEW1248T3  1303x984
+//#define GxEPD2_DRIVER_CLASS GxEPD2_154c     // GDEW0154Z04 200x200, IL0376F, no longer available
+//#define GxEPD2_DRIVER_CLASS GxEPD2_154_Z90c // GDEH0154Z90 200x200, SSD1682
+//#define GxEPD2_DRIVER_CLASS GxEPD2_213c     // GDEW0213Z16 104x212, UC8151 (IL0373)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_213_Z19c // GDEW0213Z19 104x212, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290c     // GDEW029Z10  128x296, UC8151 (IL0373)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_Z13c // GDEH029Z13  128x296, UC8151D
+//#define GxEPD2_DRIVER_CLASS GxEPD2_290_C90c // GDEM029C90  128x296, SSD1680
+//#define GxEPD2_DRIVER_CLASS GxEPD2_270c     // GDEW027C44  176x264, IL91874
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420c     // GDEW042Z15  400x300, UC8176 (IL0398)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_420c_Z21 // GDEQ042Z21  400x300, UC8276
+//#define GxEPD2_DRIVER_CLASS GxEPD2_583c     // GDEW0583Z21 600x448, UC8179 (IL0371)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_750c     // GDEW075Z09  640x384, UC8179 (IL0371)
+//#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z08 // GDEW075Z08  800x480, GD7965
+//#define GxEPD2_DRIVER_CLASS GxEPD2_750c_Z90 // GDEH075Z90  880x528, SSD1677
 // 7-color e-paper
 //#define GxEPD2_DRIVER_CLASS GxEPD2_565c // Waveshare 5.65" 7-color (3C graphics)
 // grey levels parallel IF e-papers on Waveshare e-Paper IT8951 Driver HAT
 //#define GxEPD2_DRIVER_CLASS GxEPD2_it60           // ED060SCT 800x600
 //#define GxEPD2_DRIVER_CLASS GxEPD2_it60_1448x1072 // ED060KC1 1448x1072
+//#define GxEPD2_DRIVER_CLASS GxEPD2_it78_1872x1404 // ED078KC2 1872x1404
 
 // SS is usually used for CS. define here for easy change
 #ifndef EPD_CS
@@ -68,13 +80,26 @@
 
 #if defined(GxEPD2_DISPLAY_CLASS) && defined(GxEPD2_DRIVER_CLASS)
 
+// somehow there should be an easier way to do this
+#define GxEPD2_BW_IS_GxEPD2_BW true
+#define GxEPD2_3C_IS_GxEPD2_3C true
+#define GxEPD2_7C_IS_GxEPD2_7C true
+#define GxEPD2_1248_IS_GxEPD2_1248 true
+#define IS_GxEPD(c, x) (c##x)
+#define IS_GxEPD2_BW(x) IS_GxEPD(GxEPD2_BW_IS_, x)
+#define IS_GxEPD2_3C(x) IS_GxEPD(GxEPD2_3C_IS_, x)
+#define IS_GxEPD2_7C(x) IS_GxEPD(GxEPD2_7C_IS_, x)
+#define IS_GxEPD2_1248(x) IS_GxEPD(GxEPD2_1248_IS_, x)
+
+#include "GxEPD2_selection_check.h"
+
 #if defined (ESP8266)
 #define MAX_DISPLAY_BUFFER_SIZE (81920ul-34000ul-5000ul) // ~34000 base use, change 5000 to your application use
-#if GxEPD2_DISPLAY_CLASS == GxEPD2_BW
+#if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
-#elif GxEPD2_DISPLAY_CLASS == GxEPD2_3C
+#elif IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
-#elif GxEPD2_DISPLAY_CLASS == GxEPD2_7C
+#elif IS_GxEPD2_7C(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2))
 #endif
 // adapt the constructor parameters to your wiring
@@ -87,15 +112,15 @@ GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> displ
 
 #if defined(ESP32)
 #define MAX_DISPLAY_BUFFER_SIZE 65536ul // e.g.
-#if GxEPD2_DISPLAY_CLASS == GxEPD2_BW
+#if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
-#elif GxEPD2_DISPLAY_CLASS == GxEPD2_3C
+#elif IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
-#elif GxEPD2_DISPLAY_CLASS == GxEPD2_7C
+#elif IS_GxEPD2_7C(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2))
 #endif
 // adapt the constructor parameters to your wiring
-#if (GxEPD2_DRIVER_CLASS != GxEPD2_1248)
+#if !IS_GxEPD2_1248(GxEPD2_DRIVER_CLASS)
 #if defined(ARDUINO_LOLIN_D32_PRO)
 GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=5*/ EPD_CS, /*DC=*/ 0, /*RST=*/ 2, /*BUSY=*/ 15));
 #elif defined(ARDUINO_ESP32_DEV) // e.g. TTGO T8 ESP32-WROVER
@@ -116,11 +141,11 @@ GxEPD2_BW < GxEPD2_1248, GxEPD2_1248::HEIGHT / 4 > display(GxEPD2_1248(/*sck=*/
 // can't use package "STMF1 Boards (STM32Duino.com)" (Roger Clark) anymore with Adafruit_GFX, use "STM32 Boards (selected from submenu)" (STMicroelectronics)
 #if defined(ARDUINO_ARCH_STM32)
 #define MAX_DISPLAY_BUFFER_SIZE 15000ul // ~15k is a good compromise
-#if GxEPD2_DISPLAY_CLASS == GxEPD2_BW
+#if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
-#elif GxEPD2_DISPLAY_CLASS == GxEPD2_3C
+#elif IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
-#elif GxEPD2_DISPLAY_CLASS == GxEPD2_7C
+#elif IS_GxEPD2_7C(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2))
 #endif
 // adapt the constructor parameters to your wiring
@@ -128,29 +153,29 @@ GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> displ
 #endif
 
 #if defined(__AVR)
-#if defined (ARDUINO_AVR_MEGA2560)
+#if defined (ARDUINO_AVR_MEGA2560) // Note: SS is on 53 on MEGA
 #define MAX_DISPLAY_BUFFER_SIZE 5000 // e.g. full height for 200x200
-#else
+#else // Note: SS is on 10 on UNO, NANO
 #define MAX_DISPLAY_BUFFER_SIZE 800 // 
 #endif
-#if GxEPD2_DISPLAY_CLASS == GxEPD2_BW
+#if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
-#elif GxEPD2_DISPLAY_CLASS == GxEPD2_3C
+#elif IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
-#elif GxEPD2_DISPLAY_CLASS == GxEPD2_7C
+#elif IS_GxEPD2_7C(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2))
 #endif
 // adapt the constructor parameters to your wiring
-GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=10*/ EPD_CS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
+GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=*/ EPD_CS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 #endif
 
 #if defined(ARDUINO_ARCH_SAM)
 #define MAX_DISPLAY_BUFFER_SIZE 32768ul // e.g., up to 96k
-#if GxEPD2_DISPLAY_CLASS == GxEPD2_BW
+#if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
-#elif GxEPD2_DISPLAY_CLASS == GxEPD2_3C
+#elif IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
-#elif GxEPD2_DISPLAY_CLASS == GxEPD2_7C
+#elif IS_GxEPD2_7C(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2))
 #endif
 // adapt the constructor parameters to your wiring
@@ -159,15 +184,30 @@ GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> displ
 
 #if defined(ARDUINO_ARCH_SAMD)
 #define MAX_DISPLAY_BUFFER_SIZE 15000ul // ~15k is a good compromise
-#if GxEPD2_DISPLAY_CLASS == GxEPD2_BW
+#if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
-#elif GxEPD2_DISPLAY_CLASS == GxEPD2_3C
+#elif IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
-#elif GxEPD2_DISPLAY_CLASS == GxEPD2_7C
+#elif IS_GxEPD2_7C(GxEPD2_DISPLAY_CLASS)
 #define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2))
 #endif
 // adapt the constructor parameters to your wiring
 GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=4*/ 4, /*DC=*/ 7, /*RST=*/ 6, /*BUSY=*/ 5));
+//GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=4*/ 4, /*DC=*/ 3, /*RST=*/ 2, /*BUSY=*/ 1)); // my Seed XIOA0
+//GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=4*/ 3, /*DC=*/ 2, /*RST=*/ 1, /*BUSY=*/ 0)); // my other Seed XIOA0
+#endif
+
+#if defined(ARDUINO_ARCH_RP2040)
+#define MAX_DISPLAY_BUFFER_SIZE 131072ul // e.g. half of available ram
+#if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS)
+#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8) ? EPD::HEIGHT : MAX_DISPLAY_BUFFER_SIZE / (EPD::WIDTH / 8))
+#elif IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS)
+#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE / 2) / (EPD::WIDTH / 8))
+#elif IS_GxEPD2_7C(GxEPD2_DISPLAY_CLASS)
+#define MAX_HEIGHT(EPD) (EPD::HEIGHT <= (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2) ? EPD::HEIGHT : (MAX_DISPLAY_BUFFER_SIZE) / (EPD::WIDTH / 2))
+#endif
+// adapt the constructor parameters to your wiring
+GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> display(GxEPD2_DRIVER_CLASS(/*CS=4*/ EPD_CS, /*DC=*/ 8, /*RST=*/ 9, /*BUSY=*/ 7));
 #endif
 
 #endif

extras/tests/GxEPD2_RefreshTests/GxEPD2_selection_check.h

@@ -0,0 +1,81 @@
+// Display Library example for SPI e-paper panels from Dalian Good Display and boards from Waveshare.
+// Requires HW SPI and Adafruit_GFX. Caution: the e-paper panels require 3.3V supply AND data lines!
+//
+// Display Library based on Demo Example from Good Display: http://www.e-paper-display.com/download_list/downloadcategoryid=34&isMode=false.html
+//
+// Author: Jean-Marc Zingg
+//
+// Version: see library.properties
+//
+// Library: https://github.com/ZinggJM/GxEPD2
+
+// Supporting Arduino Forum Topics:
+// Waveshare e-paper displays with SPI: http://forum.arduino.cc/index.php?topic=487007.0
+// Good Display ePaper for Arduino: https://forum.arduino.cc/index.php?topic=436411.0
+
+#define GxEPD2_102_IS_BW true
+#define GxEPD2_154_IS_BW true
+#define GxEPD2_154_D67_IS_BW true
+#define GxEPD2_154_T8_IS_BW true
+#define GxEPD2_154_M09_IS_BW true
+#define GxEPD2_154_M10_IS_BW true
+#define GxEPD2_213_IS_BW true
+#define GxEPD2_213_B72_IS_BW true
+#define GxEPD2_213_B73_IS_BW true
+#define GxEPD2_213_B74_IS_BW true
+#define GxEPD2_213_flex_IS_BW true
+#define GxEPD2_213_M21_IS_BW true
+#define GxEPD2_213_T5D_IS_BW true
+#define GxEPD2_290_IS_BW true
+#define GxEPD2_290_T5_IS_BW true
+#define GxEPD2_290_T5D_IS_BW true
+#define GxEPD2_290_I6FD_IS_BW true
+#define GxEPD2_290_T94_IS_BW true
+#define GxEPD2_290_T94_V2_IS_BW true
+#define GxEPD2_290_M06_IS_BW true
+#define GxEPD2_260_IS_BW true
+#define GxEPD2_260_M01_IS_BW true
+#define GxEPD2_270_IS_BW true
+#define GxEPD2_371_IS_BW true
+#define GxEPD2_420_IS_BW true
+#define GxEPD2_420_M01_IS_BW true
+#define GxEPD2_583_IS_BW true
+#define GxEPD2_583_T8_IS_BW true
+#define GxEPD2_750_IS_BW true
+#define GxEPD2_750_T7_IS_BW true
+#define GxEPD2_1160_T91_IS_BW true
+#define GxEPD2_1248_IS_BW true
+// 3-color e-papers
+#define GxEPD2_154c_IS_3C true
+#define GxEPD2_154_Z90c_IS_3C true
+#define GxEPD2_213c_IS_3C true
+#define GxEPD2_213_Z19c_IS_3C true
+#define GxEPD2_290c_IS_3C true
+#define GxEPD2_290_Z13c_IS_3C true
+#define GxEPD2_290_C90c_IS_3C true
+#define GxEPD2_270c_IS_3C true
+#define GxEPD2_420c_IS_3C true
+#define GxEPD2_420c_Z21_IS_3C true
+#define GxEPD2_583c_IS_3C true
+#define GxEPD2_750c_IS_3C true
+#define GxEPD2_750c_Z08_IS_3C true
+#define GxEPD2_750c_Z90_IS_3C true
+// 7-color e-paper
+#define GxEPD2_565c_IS_7C true
+
+#if defined(GxEPD2_DISPLAY_CLASS) && defined(GxEPD2_DRIVER_CLASS)
+#define IS_GxEPD2_DRIVER(c, x) (c##x)
+#define IS_GxEPD2_DRIVER_BW(x) IS_GxEPD2_DRIVER(x, _IS_BW)
+#define IS_GxEPD2_DRIVER_3C(x) IS_GxEPD2_DRIVER(x, _IS_3C)
+#define IS_GxEPD2_DRIVER_7C(x) IS_GxEPD2_DRIVER(x, _IS_7C)
+#if IS_GxEPD2_BW(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
+#error "GxEPD2_BW used with 3-color driver class"
+#endif
+#if IS_GxEPD2_3C(GxEPD2_DISPLAY_CLASS) && IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS)
+#error "GxEPD2_3C used with b/w driver class"
+#endif
+#if !IS_GxEPD2_DRIVER_BW(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS) && !IS_GxEPD2_DRIVER_3C(GxEPD2_DRIVER_CLASS)
+#error "neither BW nor 3C nor 7C kind defined for driver class (error in GxEPD2_selection_check.h)"
+#endif
+
+#endif

library.properties

@@ -1,5 +1,5 @@
 name=GxEPD2
-version=1.3.7
+version=1.3.8
 author=Jean-Marc Zingg
 maintainer=Jean-Marc Zingg
 sentence=Arduino Display Library for SPI E-Paper displays from Dalian Good Display and Waveshare. 

src/GxEPD2.h

@@ -53,6 +53,7 @@ class GxEPD2
       GDEH029A1,  Waveshare_2_9_bw = GDEH029A1,
       GDEW029T5,  Waveshare_2_9_bw_T5 = GDEW029T5,
       GDEW029T5D,
+      GDEW029I6FD,
       GDEW029M06,
       GDEM029T94,
       GDEW027W3,  Waveshare_2_7_bw = GDEW027W3,
@@ -78,6 +79,7 @@ class GxEPD2
       GDEM029C90,
       GDEW027C44,  Waveshare_2_7_bwr = GDEW027C44,
       GDEW042Z15,  Waveshare_4_2_bwr = GDEW042Z15,
+      GDEQ042Z21,  Waveshare_4_2_V2_bwr = GDEQ042Z21,
       GDEW0583Z21, Waveshare_5_83_bwr = GDEW0583Z21,
       ACeP565,     Waveshare_5_65_7c = ACeP565,
       GDEW075Z09,  Waveshare_7_5_bwr = GDEW075Z09,

src/GxEPD2_3C.h

@@ -39,6 +39,7 @@
 #include "epd3c/GxEPD2_290_C90c.h"
 #include "epd3c/GxEPD2_270c.h"
 #include "epd3c/GxEPD2_420c.h"
+#include "epd3c/GxEPD2_420c_Z21.h"
 #include "epd3c/GxEPD2_583c.h"
 #include "epd3c/GxEPD2_565c.h"
 #include "epd3c/GxEPD2_750c.h"

src/GxEPD2_BW.h

@@ -49,6 +49,7 @@
 #include "epd/GxEPD2_290.h"
 #include "epd/GxEPD2_290_T5.h"
 #include "epd/GxEPD2_290_T5D.h"
+#include "epd/GxEPD2_290_I6FD.h"
 #include "epd/GxEPD2_290_M06.h"
 #include "epd/GxEPD2_290_T94.h"
 #include "epd/GxEPD2_290_T94_V2.h"

src/GxEPD2_EPD.cpp

@@ -66,6 +66,10 @@ void GxEPD2_EPD::init(uint32_t serial_diag_bitrate, bool initial, uint16_t reset
     pinMode(_busy, INPUT);
   }
   SPI.begin();
+  if (_busy == MISO) // may be overridden, to be verified
+  {
+    pinMode(_busy, INPUT);
+  }
 }
 
 void GxEPD2_EPD::_reset()

src/epd/GxEPD2_290_I6FD.cpp

@@ -0,0 +1,439 @@
+// Display Library for SPI e-paper panels from Dalian Good Display and boards from Waveshare.
+// Requires HW SPI and Adafruit_GFX. Caution: the e-paper panels require 3.3V supply AND data lines!
+//
+// based on Demo Example from Good Display: http://www.e-paper-display.com/download_list/downloadcategoryid=34&isMode=false.html
+// Panel: GDEW029I6FD : https://www.good-display.com/product/209.html
+// Controller: UC8151D : https://v4.cecdn.yun300.cn/100001_1909185148/UC8151D.pdf
+//
+// Author: Jean-Marc Zingg
+//
+// Version: see library.properties
+//
+// Library: https://github.com/ZinggJM/GxEPD2
+
+#include "GxEPD2_290_I6FD.h"
+
+GxEPD2_290_I6FD::GxEPD2_290_I6FD(int8_t cs, int8_t dc, int8_t rst, int8_t busy) :
+  GxEPD2_EPD(cs, dc, rst, busy, LOW, 10000000, WIDTH, HEIGHT, panel, hasColor, hasPartialUpdate, hasFastPartialUpdate)
+{
+}
+
+void GxEPD2_290_I6FD::clearScreen(uint8_t value)
+{
+  writeScreenBuffer(value);
+  refresh(true);
+  writeScreenBufferAgain(value);
+}
+
+void GxEPD2_290_I6FD::writeScreenBuffer(uint8_t value)
+{
+  if (!_using_partial_mode) _Init_Part();
+  if (_initial_write) _writeScreenBuffer(0x10, value); // set previous
+  _writeScreenBuffer(0x13, value); // set current
+  _initial_write = false; // initial full screen buffer clean done
+}
+
+void GxEPD2_290_I6FD::writeScreenBufferAgain(uint8_t value)
+{
+  if (!_using_partial_mode) _Init_Part();
+  _writeScreenBuffer(0x13, value); // set current
+}
+
+void GxEPD2_290_I6FD::_writeScreenBuffer(uint8_t command, uint8_t value)
+{
+  _writeCommand(command);
+  for (uint32_t i = 0; i < uint32_t(WIDTH) * uint32_t(HEIGHT) / 8; i++)
+  {
+    _writeData(value);
+  }
+}
+
+void GxEPD2_290_I6FD::writeImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  _writeImage(0x13, bitmap, x, y, w, h, invert, mirror_y, pgm);
+}
+
+void GxEPD2_290_I6FD::writeImageForFullRefresh(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  _writeImage(0x10, bitmap, x, y, w, h, invert, mirror_y, pgm);
+  _writeImage(0x13, bitmap, x, y, w, h, invert, mirror_y, pgm);
+}
+
+void GxEPD2_290_I6FD::writeImageAgain(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  _writeImage(0x13, bitmap, x, y, w, h, invert, mirror_y, pgm);
+}
+
+void GxEPD2_290_I6FD::_writeImage(uint8_t command, const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  if (_initial_write) writeScreenBuffer(); // initial full screen buffer clean
+  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+  int16_t wb = (w + 7) / 8; // width bytes, bitmaps are padded
+  x -= x % 8; // byte boundary
+  w = wb * 8; // byte boundary
+  int16_t x1 = x < 0 ? 0 : x; // limit
+  int16_t y1 = y < 0 ? 0 : y; // limit
+  int16_t w1 = x + w < int16_t(WIDTH) ? w : int16_t(WIDTH) - x; // limit
+  int16_t h1 = y + h < int16_t(HEIGHT) ? h : int16_t(HEIGHT) - y; // limit
+  int16_t dx = x1 - x;
+  int16_t dy = y1 - y;
+  w1 -= dx;
+  h1 -= dy;
+  if ((w1 <= 0) || (h1 <= 0)) return;
+  if (!_using_partial_mode) _Init_Part();
+  _writeCommand(0x91); // partial in
+  _setPartialRamArea(x1, y1, w1, h1);
+  _writeCommand(command);
+  for (int16_t i = 0; i < h1; i++)
+  {
+    for (int16_t j = 0; j < w1 / 8; j++)
+    {
+      uint8_t data;
+      // use wb, h of bitmap for index!
+      int16_t idx = mirror_y ? j + dx / 8 + ((h - 1 - (i + dy))) * wb : j + dx / 8 + (i + dy) * wb;
+      if (pgm)
+      {
+#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
+        data = pgm_read_byte(&bitmap[idx]);
+#else
+        data = bitmap[idx];
+#endif
+      }
+      else
+      {
+        data = bitmap[idx];
+      }
+      if (invert) data = ~data;
+      _writeData(data);
+    }
+  }
+  _writeCommand(0x92); // partial out
+  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+}
+
+void GxEPD2_290_I6FD::writeImagePart(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                                    int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  _writeImagePart(0x13, bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
+}
+
+void GxEPD2_290_I6FD::writeImagePartAgain(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+    int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  _writeImagePart(0x13, bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
+}
+
+void GxEPD2_290_I6FD::_writeImagePart(uint8_t command, const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                                    int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  if (_initial_write) writeScreenBuffer(); // initial full screen buffer clean
+  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+  if ((w_bitmap < 0) || (h_bitmap < 0) || (w < 0) || (h < 0)) return;
+  if ((x_part < 0) || (x_part >= w_bitmap)) return;
+  if ((y_part < 0) || (y_part >= h_bitmap)) return;
+  int16_t wb_bitmap = (w_bitmap + 7) / 8; // width bytes, bitmaps are padded
+  x_part -= x_part % 8; // byte boundary
+  w = w_bitmap - x_part < w ? w_bitmap - x_part : w; // limit
+  h = h_bitmap - y_part < h ? h_bitmap - y_part : h; // limit
+  x -= x % 8; // byte boundary
+  w = 8 * ((w + 7) / 8); // byte boundary, bitmaps are padded
+  int16_t x1 = x < 0 ? 0 : x; // limit
+  int16_t y1 = y < 0 ? 0 : y; // limit
+  int16_t w1 = x + w < int16_t(WIDTH) ? w : int16_t(WIDTH) - x; // limit
+  int16_t h1 = y + h < int16_t(HEIGHT) ? h : int16_t(HEIGHT) - y; // limit
+  int16_t dx = x1 - x;
+  int16_t dy = y1 - y;
+  w1 -= dx;
+  h1 -= dy;
+  if ((w1 <= 0) || (h1 <= 0)) return;
+  if (!_using_partial_mode) _Init_Part();
+  _writeCommand(0x91); // partial in
+  _setPartialRamArea(x1, y1, w1, h1);
+  _writeCommand(command);
+  for (int16_t i = 0; i < h1; i++)
+  {
+    for (int16_t j = 0; j < w1 / 8; j++)
+    {
+      uint8_t data;
+      // use wb_bitmap, h_bitmap of bitmap for index!
+      int16_t idx = mirror_y ? x_part / 8 + j + dx / 8 + ((h_bitmap - 1 - (y_part + i + dy))) * wb_bitmap : x_part / 8 + j + dx / 8 + (y_part + i + dy) * wb_bitmap;
+      if (pgm)
+      {
+#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
+        data = pgm_read_byte(&bitmap[idx]);
+#else
+        data = bitmap[idx];
+#endif
+      }
+      else
+      {
+        data = bitmap[idx];
+      }
+      if (invert) data = ~data;
+      _writeData(data);
+    }
+  }
+  _writeCommand(0x92); // partial out
+  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+}
+
+void GxEPD2_290_I6FD::writeImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  if (black)
+  {
+    writeImage(black, x, y, w, h, invert, mirror_y, pgm);
+  }
+}
+
+void GxEPD2_290_I6FD::writeImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                                    int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  if (black)
+  {
+    writeImagePart(black, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
+  }
+}
+
+void GxEPD2_290_I6FD::writeNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  if (data1)
+  {
+    writeImage(data1, x, y, w, h, invert, mirror_y, pgm);
+  }
+}
+
+void GxEPD2_290_I6FD::drawImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  writeImage(bitmap, x, y, w, h, invert, mirror_y, pgm);
+  refresh(x, y, w, h);
+  writeImageAgain(bitmap, x, y, w, h, invert, mirror_y, pgm);
+}
+
+void GxEPD2_290_I6FD::drawImagePart(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                                   int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  writeImagePart(bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
+  refresh(x, y, w, h);
+  writeImagePartAgain(bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
+}
+
+void GxEPD2_290_I6FD::drawImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  if (black)
+  {
+    drawImage(black, x, y, w, h, invert, mirror_y, pgm);
+  }
+}
+
+void GxEPD2_290_I6FD::drawImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                                   int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  if (black)
+  {
+    drawImagePart(black, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
+  }
+}
+
+void GxEPD2_290_I6FD::drawNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  if (data1)
+  {
+    drawImage(data1, x, y, w, h, invert, mirror_y, pgm);
+  }
+}
+
+void GxEPD2_290_I6FD::refresh(bool partial_update_mode)
+{
+  if (partial_update_mode) refresh(0, 0, WIDTH, HEIGHT);
+  else
+  {
+    if (_using_partial_mode) _Init_Full();
+    _Update_Full();
+    _initial_refresh = false; // initial full update done
+  }
+}
+
+void GxEPD2_290_I6FD::refresh(int16_t x, int16_t y, int16_t w, int16_t h)
+{
+  if (_initial_refresh) return refresh(false); // initial update needs be full update
+  x -= x % 8; // byte boundary
+  w -= x % 8; // byte boundary
+  int16_t x1 = x < 0 ? 0 : x; // limit
+  int16_t y1 = y < 0 ? 0 : y; // limit
+  int16_t w1 = x + w < int16_t(WIDTH) ? w : int16_t(WIDTH) - x; // limit
+  int16_t h1 = y + h < int16_t(HEIGHT) ? h : int16_t(HEIGHT) - y; // limit
+  w1 -= x1 - x;
+  h1 -= y1 - y;
+  if (!_using_partial_mode) _Init_Part();
+  _writeCommand(0x91); // partial in
+  _setPartialRamArea(x1, y1, w1, h1);
+  _Update_Part();
+  _writeCommand(0x92); // partial out
+}
+
+void GxEPD2_290_I6FD::powerOff(void)
+{
+  _PowerOff();
+}
+
+void GxEPD2_290_I6FD::hibernate()
+{
+  _PowerOff();
+  if (_rst >= 0)
+  {
+    _writeCommand(0x07); // deep sleep
+    _writeData(0xA5);    // check code
+    _hibernating = true;
+  }
+}
+
+void GxEPD2_290_I6FD::_setPartialRamArea(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
+{
+  uint16_t xe = (x + w - 1) | 0x0007; // byte boundary inclusive (last byte)
+  uint16_t ye = y + h - 1;
+  x &= 0xFFF8; // byte boundary
+  _writeCommand(0x90); // partial window
+  //_writeData(x / 256);
+  _writeData(x % 256);
+  //_writeData(xe / 256);
+  _writeData(xe % 256);
+  _writeData(y / 256);
+  _writeData(y % 256);
+  _writeData(ye / 256);
+  _writeData(ye % 256);
+  _writeData(0x01); // don't see any difference
+  //_writeData(0x00); // don't see any difference
+}
+
+void GxEPD2_290_I6FD::_PowerOn()
+{
+  if (!_power_is_on)
+  {
+    _writeCommand(0x04);
+    _waitWhileBusy("_PowerOn", power_on_time);
+  }
+  _power_is_on = true;
+}
+
+void GxEPD2_290_I6FD::_PowerOff()
+{
+  _writeCommand(0x02); // power off
+  _waitWhileBusy("_PowerOff", power_off_time);
+  _power_is_on = false;
+  _using_partial_mode = false;
+}
+
+void GxEPD2_290_I6FD::_InitDisplay()
+{
+  if (_hibernating) _reset();
+  _writeCommand(0x00); // panel setting
+  _writeData(0x1f);    // LUT from OTP, 128x296
+  _writeCommand(0x61); //resolution setting
+  _writeData (WIDTH);
+  _writeData (HEIGHT >> 8);
+  _writeData (HEIGHT & 0xFF);
+  _writeCommand(0x50); // VCOM AND DATA INTERVAL SETTING
+  _writeData(0x97);    // WBmode:VBDF 17|D7 VBDW 97 VBDB 57   WBRmode:VBDF F7 VBDW 77 VBDB 37  VBDR B7
+}
+
+//partial screen update LUT
+//#define Tx19 0x19 // original value is 25 (phase length)
+#define Tx19 0x10   // new value for test is 16 (phase length)
+//#define Tx19 0x20   // new value for test is 32 (phase length)
+const unsigned char GxEPD2_290_I6FD::lut_20_vcomDC_partial[] PROGMEM =
+{
+  0x00, Tx19, 0x01, 0x00, 0x00, 0x01,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00,
+};
+
+const unsigned char GxEPD2_290_I6FD::lut_21_ww_partial[] PROGMEM =
+{
+  0x00, Tx19, 0x01, 0x00, 0x00, 0x01,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+
+const unsigned char GxEPD2_290_I6FD::lut_22_bw_partial[] PROGMEM =
+{
+  0x80, Tx19, 0x01, 0x00, 0x00, 0x01,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+
+const unsigned char GxEPD2_290_I6FD::lut_23_wb_partial[] PROGMEM =
+{
+  0x40, Tx19, 0x01, 0x00, 0x00, 0x01,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+
+const unsigned char GxEPD2_290_I6FD::lut_24_bb_partial[] PROGMEM =
+{
+  0x00, Tx19, 0x01, 0x00, 0x00, 0x01,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+
+void GxEPD2_290_I6FD::_Init_Full()
+{
+  _InitDisplay();
+  _PowerOn();
+  _using_partial_mode = false;
+}
+
+void GxEPD2_290_I6FD::_Init_Part()
+{
+  _InitDisplay();
+  _writeCommand(0x00); //panel setting
+  _writeData(hasFastPartialUpdate ? 0xbf : 0x1f); // for test with OTP LUT
+  _writeCommand(0x82); //vcom_DC setting
+  _writeData (0x08);
+  _writeCommand(0x50);
+  _writeData(0x17);    //WBmode:VBDF 17|D7 VBDW 97 VBDB 57   WBRmode:VBDF F7 VBDW 77 VBDB 37  VBDR B7
+  _writeCommand(0x20);
+  _writeDataPGM(lut_20_vcomDC_partial, sizeof(lut_20_vcomDC_partial));
+  _writeCommand(0x21);
+  _writeDataPGM(lut_21_ww_partial, sizeof(lut_21_ww_partial));
+  _writeCommand(0x22);
+  _writeDataPGM(lut_22_bw_partial, sizeof(lut_22_bw_partial));
+  _writeCommand(0x23);
+  _writeDataPGM(lut_23_wb_partial, sizeof(lut_23_wb_partial));
+  _writeCommand(0x24);
+  _writeDataPGM(lut_24_bb_partial, sizeof(lut_24_bb_partial));
+  _PowerOn();
+  _using_partial_mode = true;
+}
+
+void GxEPD2_290_I6FD::_Update_Full()
+{
+  _writeCommand(0x12); //display refresh
+  _waitWhileBusy("_Update_Full", full_refresh_time);
+}
+
+void GxEPD2_290_I6FD::_Update_Part()
+{
+  _writeCommand(0x12); //display refresh
+  _waitWhileBusy("_Update_Part", partial_refresh_time);
+}

src/epd/GxEPD2_290_I6FD.h

@@ -0,0 +1,88 @@
+// Display Library for SPI e-paper panels from Dalian Good Display and boards from Waveshare.
+// Requires HW SPI and Adafruit_GFX. Caution: the e-paper panels require 3.3V supply AND data lines!
+//
+// based on Demo Example from Good Display: http://www.e-paper-display.com/download_list/downloadcategoryid=34&isMode=false.html
+// Panel: GDEW029I6FD : https://www.good-display.com/product/209.html
+// Controller: UC8151D : https://v4.cecdn.yun300.cn/100001_1909185148/UC8151D.pdf
+//
+// Author: Jean-Marc Zingg
+//
+// Version: see library.properties
+//
+// Library: https://github.com/ZinggJM/GxEPD2
+
+#ifndef _GxEPD2_290_I6FD_H_
+#define _GxEPD2_290_I6FD_H_
+
+#include "../GxEPD2_EPD.h"
+
+class GxEPD2_290_I6FD : public GxEPD2_EPD
+{
+  public:
+    // attributes
+    static const uint16_t WIDTH = 128;
+    static const uint16_t HEIGHT = 296;
+    static const GxEPD2::Panel panel = GxEPD2::GDEW029I6FD;
+    static const bool hasColor = false;
+    static const bool hasPartialUpdate = true;
+    static const bool hasFastPartialUpdate = true;
+    static const uint16_t power_on_time = 100; // ms, e.g. 84375us
+    static const uint16_t power_off_time = 50; // ms, e.g. 39688us
+    static const uint16_t full_refresh_time = 3600; // ms, e.g. 3547960us
+    static const uint16_t partial_refresh_time = 400; // ms, e.g. 380865us
+    // constructor
+    GxEPD2_290_I6FD(int8_t cs, int8_t dc, int8_t rst, int8_t busy);
+    // methods (virtual)
+    //  Support for Bitmaps (Sprites) to Controller Buffer and to Screen
+    void clearScreen(uint8_t value = 0xFF); // init controller memory and screen (default white)
+    void writeScreenBuffer(uint8_t value = 0xFF); // init controller memory (default white)
+    void writeScreenBufferAgain(uint8_t value = 0xFF); // init previous buffer controller memory (default white)
+    // write to controller memory, without screen refresh; x and w should be multiple of 8
+    void writeImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void writeImageForFullRefresh(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void writeImagePart(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                        int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void writeImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void writeImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                        int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    // for differential update: set current and previous buffers equal (for fast partial update to work correctly)
+    void writeImageAgain(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void writeImagePartAgain(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                             int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    // write sprite of native data to controller memory, without screen refresh; x and w should be multiple of 8
+    void writeNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    // write to controller memory, with screen refresh; x and w should be multiple of 8
+    void drawImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void drawImagePart(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                       int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void drawImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void drawImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                       int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    // write sprite of native data to controller memory, with screen refresh; x and w should be multiple of 8
+    void drawNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void refresh(bool partial_update_mode = false); // screen refresh from controller memory to full screen
+    void refresh(int16_t x, int16_t y, int16_t w, int16_t h); // screen refresh from controller memory, partial screen
+    void powerOff(); // turns off generation of panel driving voltages, avoids screen fading over time
+    void hibernate(); // turns powerOff() and sets controller to deep sleep for minimum power use, ONLY if wakeable by RST (rst >= 0)
+  private:
+    void _writeScreenBuffer(uint8_t command, uint8_t value);
+    void _writeImage(uint8_t command, const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void _writeImagePart(uint8_t command, const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                         int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void _setPartialRamArea(uint16_t x, uint16_t y, uint16_t w, uint16_t h);
+    void _PowerOn();
+    void _PowerOff();
+    void _InitDisplay();
+    void _Init_Full();
+    void _Init_Part();
+    void _Update_Full();
+    void _Update_Part();
+  private:
+    static const unsigned char lut_20_vcomDC_partial[];
+    static const unsigned char lut_21_ww_partial[];
+    static const unsigned char lut_22_bw_partial[];
+    static const unsigned char lut_23_wb_partial[];
+    static const unsigned char lut_24_bb_partial[];
+};
+
+#endif

src/epd3c/GxEPD2_420c_Z21.cpp

@@ -0,0 +1,405 @@
+// Display Library for SPI e-paper panels from Dalian Good Display and boards from Waveshare.
+// Requires HW SPI and Adafruit_GFX. Caution: the e-paper panels require 3.3V supply AND data lines!
+//
+// based on Demo Example from Good Display: http://www.e-paper-display.com/download_list/downloadcategoryid=34&isMode=false.html
+// Panel: GDEQ042Z21 : https://www.good-display.com/product/395.html
+// Controller: UC8276 : no link available currently, see https://www.good-display.com/companyfile/5/
+//
+// Author: Jean-Marc Zingg
+//
+// Version: see library.properties
+//
+// Library: https://github.com/ZinggJM/GxEPD2
+
+#include "GxEPD2_420c_Z21.h"
+
+GxEPD2_420c_Z21::GxEPD2_420c_Z21(int8_t cs, int8_t dc, int8_t rst, int8_t busy) :
+  GxEPD2_EPD(cs, dc, rst, busy, LOW, 20000000, WIDTH, HEIGHT, panel, hasColor, hasPartialUpdate, hasFastPartialUpdate)
+{
+}
+
+void GxEPD2_420c_Z21::clearScreen(uint8_t value)
+{
+  clearScreen(value, 0xFF);
+}
+
+void GxEPD2_420c_Z21::clearScreen(uint8_t black_value, uint8_t color_value)
+{
+  _initial_write = false; // initial full screen buffer clean done
+  _Init_Part();
+  _writeCommand(0x91); // partial in
+  _setPartialRamArea(0, 0, WIDTH, HEIGHT);
+  _writeCommand(0x10);
+  _startTransfer();
+  for (uint32_t i = 0; i < uint32_t(WIDTH) * uint32_t(HEIGHT) / 8; i++)
+  {
+    _transfer(black_value);
+  }
+  _endTransfer();
+  _writeCommand(0x13);
+  _startTransfer();
+  for (uint32_t i = 0; i < uint32_t(WIDTH) * uint32_t(HEIGHT) / 8; i++)
+  {
+    _transfer(color_value);
+  }
+  _endTransfer();
+  _Update_Part();
+  _writeCommand(0x92); // partial out
+}
+
+void GxEPD2_420c_Z21::writeScreenBuffer(uint8_t value)
+{
+  writeScreenBuffer(value, 0xFF);
+}
+
+void GxEPD2_420c_Z21::writeScreenBuffer(uint8_t black_value, uint8_t color_value)
+{
+  _initial_write = false; // initial full screen buffer clean done
+  _Init_Part();
+  _writeCommand(0x91); // partial in
+  _setPartialRamArea(0, 0, WIDTH, HEIGHT);
+  _writeCommand(0x10);
+  _startTransfer();
+  for (uint16_t i = 0; i < uint32_t(WIDTH) * uint32_t(HEIGHT) / 8; i++)
+  {
+    _transfer(black_value);
+  }
+  _endTransfer();
+  _writeCommand(0x13);
+  _startTransfer();
+  for (uint16_t i = 0; i < uint32_t(WIDTH) * uint32_t(HEIGHT) / 8; i++)
+  {
+    _transfer(color_value);
+  }
+  _endTransfer();
+  _writeCommand(0x92); // partial out
+}
+
+void GxEPD2_420c_Z21::writeImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  writeImage(bitmap, NULL, x, y, w, h, invert, mirror_y, pgm);
+}
+
+void GxEPD2_420c_Z21::writeImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  if (_initial_write) writeScreenBuffer(); // initial full screen buffer clean
+  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+  int16_t wb = (w + 7) / 8; // width bytes, bitmaps are padded
+  x -= x % 8; // byte boundary
+  w = wb * 8; // byte boundary
+  int16_t x1 = x < 0 ? 0 : x; // limit
+  int16_t y1 = y < 0 ? 0 : y; // limit
+  int16_t w1 = x + w < int16_t(WIDTH) ? w : int16_t(WIDTH) - x; // limit
+  int16_t h1 = y + h < int16_t(HEIGHT) ? h : int16_t(HEIGHT) - y; // limit
+  int16_t dx = x1 - x;
+  int16_t dy = y1 - y;
+  w1 -= dx;
+  h1 -= dy;
+  if ((w1 <= 0) || (h1 <= 0)) return;
+  _Init_Part();
+  _writeCommand(0x91); // partial in
+  _setPartialRamArea(x1, y1, w1, h1);
+  _writeCommand(0x10);
+  _startTransfer();
+  for (int16_t i = 0; i < h1; i++)
+  {
+    for (int16_t j = 0; j < w1 / 8; j++)
+    {
+      uint8_t data = 0xFF;
+      if (black)
+      {
+        // use wb, h of bitmap for index!
+        int16_t idx = mirror_y ? j + dx / 8 + ((h - 1 - (i + dy))) * wb : j + dx / 8 + (i + dy) * wb;
+        if (pgm)
+        {
+#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
+          data = pgm_read_byte(&black[idx]);
+#else
+          data = black[idx];
+#endif
+        }
+        else
+        {
+          data = black[idx];
+        }
+        if (invert) data = ~data;
+      }
+      _transfer(data);
+    }
+  }
+  _endTransfer();
+  _writeCommand(0x13);
+  _startTransfer();
+  for (int16_t i = 0; i < h1; i++)
+  {
+    for (int16_t j = 0; j < w1 / 8; j++)
+    {
+      uint8_t data = 0xFF;
+      if (color)
+      {
+        // use wb, h of bitmap for index!
+        int16_t idx = mirror_y ? j + dx / 8 + ((h - 1 - (i + dy))) * wb : j + dx / 8 + (i + dy) * wb;
+        if (pgm)
+        {
+#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
+          data = pgm_read_byte(&color[idx]);
+#else
+          data = color[idx];
+#endif
+        }
+        else
+        {
+          data = color[idx];
+        }
+        if (invert) data = ~data;
+      }
+      _transfer(data);
+    }
+  }
+  _endTransfer();
+  _writeCommand(0x92); // partial out
+  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+}
+
+void GxEPD2_420c_Z21::writeImagePart(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                                     int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  writeImagePart(bitmap, NULL, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
+}
+
+void GxEPD2_420c_Z21::writeImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                                     int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  if (_initial_write) writeScreenBuffer(); // initial full screen buffer clean
+  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+  if ((w_bitmap < 0) || (h_bitmap < 0) || (w < 0) || (h < 0)) return;
+  if ((x_part < 0) || (x_part >= w_bitmap)) return;
+  if ((y_part < 0) || (y_part >= h_bitmap)) return;
+  int16_t wb_bitmap = (w_bitmap + 7) / 8; // width bytes, bitmaps are padded
+  x_part -= x_part % 8; // byte boundary
+  w = w_bitmap - x_part < w ? w_bitmap - x_part : w; // limit
+  h = h_bitmap - y_part < h ? h_bitmap - y_part : h; // limit
+  x -= x % 8; // byte boundary
+  w = 8 * ((w + 7) / 8); // byte boundary, bitmaps are padded
+  int16_t x1 = x < 0 ? 0 : x; // limit
+  int16_t y1 = y < 0 ? 0 : y; // limit
+  int16_t w1 = x + w < int16_t(WIDTH) ? w : int16_t(WIDTH) - x; // limit
+  int16_t h1 = y + h < int16_t(HEIGHT) ? h : int16_t(HEIGHT) - y; // limit
+  int16_t dx = x1 - x;
+  int16_t dy = y1 - y;
+  w1 -= dx;
+  h1 -= dy;
+  if ((w1 <= 0) || (h1 <= 0)) return;
+  if (!_using_partial_mode) _Init_Part();
+  _writeCommand(0x91); // partial in
+  _setPartialRamArea(x1, y1, w1, h1);
+  _writeCommand(0x10);
+  _startTransfer();
+  for (int16_t i = 0; i < h1; i++)
+  {
+    for (int16_t j = 0; j < w1 / 8; j++)
+    {
+      uint8_t data;
+      // use wb_bitmap, h_bitmap of bitmap for index!
+      int16_t idx = mirror_y ? x_part / 8 + j + dx / 8 + ((h_bitmap - 1 - (y_part + i + dy))) * wb_bitmap : x_part / 8 + j + dx / 8 + (y_part + i + dy) * wb_bitmap;
+      if (pgm)
+      {
+#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
+        data = pgm_read_byte(&black[idx]);
+#else
+        data = black[idx];
+#endif
+      }
+      else
+      {
+        data = black[idx];
+      }
+      if (invert) data = ~data;
+      _transfer(data);
+    }
+  }
+  _endTransfer();
+  _writeCommand(0x13);
+  _startTransfer();
+  for (int16_t i = 0; i < h1; i++)
+  {
+    for (int16_t j = 0; j < w1 / 8; j++)
+    {
+      uint8_t data = 0xFF;
+      if (color)
+      {
+        // use wb_bitmap, h_bitmap of bitmap for index!
+        int16_t idx = mirror_y ? x_part / 8 + j + dx / 8 + ((h_bitmap - 1 - (y_part + i + dy))) * wb_bitmap : x_part / 8 + j + dx / 8 + (y_part + i + dy) * wb_bitmap;
+        if (pgm)
+        {
+#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
+          data = pgm_read_byte(&color[idx]);
+#else
+          data = color[idx];
+#endif
+        }
+        else
+        {
+          data = color[idx];
+        }
+        if (invert) data = ~data;
+      }
+      _transfer(data);
+    }
+  }
+  _endTransfer();
+  _writeCommand(0x92); // partial out
+  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+}
+
+void GxEPD2_420c_Z21::writeNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  if (data1)
+  {
+    writeImage(data1, x, y, w, h, invert, mirror_y, pgm);
+  }
+}
+
+void GxEPD2_420c_Z21::drawImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  writeImage(bitmap, x, y, w, h, invert, mirror_y, pgm);
+  refresh(x, y, w, h);
+}
+
+void GxEPD2_420c_Z21::drawImagePart(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                                    int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  writeImagePart(bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
+  refresh(x, y, w, h);
+}
+
+void GxEPD2_420c_Z21::drawImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  writeImage(black, color, x, y, w, h, invert, mirror_y, pgm);
+  refresh(x, y, w, h);
+}
+
+void GxEPD2_420c_Z21::drawImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                                    int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  writeImagePart(black, color, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
+  refresh(x, y, w, h);
+}
+
+void GxEPD2_420c_Z21::drawNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
+{
+  writeNative(data1, data2, x, y, w, h, invert, mirror_y, pgm);
+  refresh(x, y, w, h);
+}
+
+void GxEPD2_420c_Z21::refresh(bool partial_update_mode)
+{
+  if (partial_update_mode) refresh(0, 0, WIDTH, HEIGHT);
+  else _Update_Full();
+}
+
+void GxEPD2_420c_Z21::refresh(int16_t x, int16_t y, int16_t w, int16_t h)
+{
+  x -= x % 8; // byte boundary
+  w -= x % 8; // byte boundary
+  int16_t x1 = x < 0 ? 0 : x; // limit
+  int16_t y1 = y < 0 ? 0 : y; // limit
+  int16_t w1 = x + w < int16_t(WIDTH) ? w : int16_t(WIDTH) - x; // limit
+  int16_t h1 = y + h < int16_t(HEIGHT) ? h : int16_t(HEIGHT) - y; // limit
+  w1 -= x1 - x;
+  h1 -= y1 - y;
+  _Init_Part();
+  if (usePartialUpdateWindow) _writeCommand(0x91); // partial in
+  _setPartialRamArea(x1, y1, w1, h1);
+  _Update_Part();
+  if (usePartialUpdateWindow) _writeCommand(0x92); // partial out
+}
+
+void GxEPD2_420c_Z21::powerOff()
+{
+  _PowerOff();
+}
+
+void GxEPD2_420c_Z21::hibernate()
+{
+  _writeCommand(0x50); // VCOM AND DATA INTERVAL SETTING
+  _writeData(0xf7);    // border floating
+  _PowerOff();
+  if (_rst >= 0)
+  {
+    _writeCommand(0x07); // deep sleep
+    _writeData(0xA5);    // check code
+    _hibernating = true;
+  }
+}
+
+void GxEPD2_420c_Z21::_setPartialRamArea(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
+{
+  uint16_t xe = (x + w - 1) | 0x0007; // byte boundary inclusive (last byte)
+  uint16_t ye = y + h - 1;
+  x &= 0xFFF8; // byte boundary
+  xe |= 0x0007; // byte boundary
+  _writeCommand(0x90); // partial window
+  _writeData(x / 256);
+  _writeData(x % 256);
+  _writeData(xe / 256);
+  _writeData(xe % 256);
+  _writeData(y / 256);
+  _writeData(y % 256);
+  _writeData(ye / 256);
+  _writeData(ye % 256);
+  _writeData(0x01); // Gates scan both inside and outside of the partial window. (default)
+}
+
+void GxEPD2_420c_Z21::_PowerOn()
+{
+  if (!_power_is_on)
+  {
+    _writeCommand(0x04);
+    _waitWhileBusy("_PowerOn", power_on_time);
+  }
+  _power_is_on = true;
+}
+
+void GxEPD2_420c_Z21::_PowerOff()
+{
+  if (_power_is_on)
+  {
+    _writeCommand(0x02); // power off
+    _waitWhileBusy("_PowerOff", power_off_time);
+    _power_is_on = false;
+  }
+}
+
+void GxEPD2_420c_Z21::_InitDisplay()
+{
+  if (_hibernating) _reset();
+  _writeCommand(0x00); //panel setting
+  _writeData(0x0f);    //LUT from OTP, 400x300
+}
+
+void GxEPD2_420c_Z21::_Init_Full()
+{
+  _InitDisplay();
+  _PowerOn();
+}
+
+void GxEPD2_420c_Z21::_Init_Part()
+{
+  _InitDisplay();
+  _writeCommand(0x50); // VCOM AND DATA INTERVAL SETTING
+  _writeData(0xf7);    // border floating
+  _PowerOn();
+}
+
+void GxEPD2_420c_Z21::_Update_Full()
+{
+  _writeCommand(0x12); //display refresh
+  _waitWhileBusy("_Update_Full", full_refresh_time);
+}
+
+void GxEPD2_420c_Z21::_Update_Part()
+{
+  _writeCommand(0x12); //display refresh
+  _waitWhileBusy("_Update_Part", partial_refresh_time);
+}

src/epd3c/GxEPD2_420c_Z21.h

@@ -0,0 +1,76 @@
+// Display Library for SPI e-paper panels from Dalian Good Display and boards from Waveshare.
+// Requires HW SPI and Adafruit_GFX. Caution: the e-paper panels require 3.3V supply AND data lines!
+//
+// based on Demo Example from Good Display: http://www.e-paper-display.com/download_list/downloadcategoryid=34&isMode=false.html
+// Panel: GDEQ042Z21 : https://www.good-display.com/product/395.html
+// Controller: UC8276 : no link available currently, see https://www.good-display.com/companyfile/5/
+//
+// Author: Jean-Marc Zingg
+//
+// Version: see library.properties
+//
+// Library: https://github.com/ZinggJM/GxEPD2
+
+#ifndef _GxEPD2_420c_Z21_H_
+#define _GxEPD2_420c_Z21_H_
+
+#include "../GxEPD2_EPD.h"
+
+class GxEPD2_420c_Z21 : public GxEPD2_EPD
+{
+  public:
+    // attributes
+    static const uint16_t WIDTH = 400;
+    static const uint16_t HEIGHT = 300;
+    static const GxEPD2::Panel panel = GxEPD2::GDEQ042Z21;
+    static const bool hasColor = true;
+    static const bool hasPartialUpdate = true;
+    static const bool usePartialUpdateWindow = true; // works fine on this panel
+    static const bool hasFastPartialUpdate = false;
+    static const uint16_t power_on_time = 50; // ms, e.g. 42190us
+    static const uint16_t power_off_time = 50; // ms, e.g. 39688us
+    static const uint16_t full_refresh_time = 16000; // ms, e.g. 15171828us
+    static const uint16_t partial_refresh_time = 16000; // ms, e.g. 15171828us
+    // constructor
+    GxEPD2_420c_Z21(int8_t cs, int8_t dc, int8_t rst, int8_t busy);
+    // methods (virtual)
+    //  Support for Bitmaps (Sprites) to Controller Buffer and to Screen
+    void clearScreen(uint8_t value = 0xFF); // init controller memory and screen (default white)
+    void clearScreen(uint8_t black_value, uint8_t color_value); // init controller memory and screen
+    void writeScreenBuffer(uint8_t value = 0xFF); // init controller memory (default white)
+    void writeScreenBuffer(uint8_t black_value, uint8_t color_value); // init controller memory
+    // write to controller memory, without screen refresh; x and w should be multiple of 8
+    void writeImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void writeImagePart(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                        int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void writeImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void writeImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                        int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    // write sprite of native data to controller memory, without screen refresh; x and w should be multiple of 8
+    void writeNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    // write to controller memory, with screen refresh; x and w should be multiple of 8
+    void drawImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void drawImagePart(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                       int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void drawImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void drawImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
+                       int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    // write sprite of native data to controller memory, with screen refresh; x and w should be multiple of 8
+    void drawNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false);
+    void refresh(bool partial_update_mode = false); // screen refresh from controller memory to full screen
+    void refresh(int16_t x, int16_t y, int16_t w, int16_t h); // screen refresh from controller memory, partial screen
+    void powerOff(); // turns off generation of panel driving voltages, avoids screen fading over time
+    void hibernate(); // turns powerOff() and sets controller to deep sleep for minimum power use, ONLY if wakeable by RST (rst >= 0)
+  private:
+    void _writeScreenBuffer(uint8_t value);
+    void _setPartialRamArea(uint16_t x, uint16_t y, uint16_t w, uint16_t h);
+    void _PowerOn();
+    void _PowerOff();
+    void _InitDisplay();
+    void _Init_Full();
+    void _Init_Part();
+    void _Update_Full();
+    void _Update_Part();
+};
+
+#endif