Version 1.3.5

- added support for GDEM0213B74 122x250 b/w e-paper panel
- added support for ED078KC2, 7.8" grey levels, 1872x1404, on Waveshare e-Paper IT8951 Driver HAT

README.md

@@ -61,6 +61,7 @@
 - GDE0213B1      2.13" b/w
 - GDEH0213B72    2.13" b/w, replacement for GDE0213B1
 - GDEH0213B73    2.13" b/w, new replacement for GDE0213B1, GDEH0213B72
+- GDEM0213B74    2.13" b/w
 - GDEW0213I5F    2.13" b/w flexible
 - GDEW0213T5D    2.13" b/w
 - GDEW0213M21    2.13" b/w DES
@@ -96,12 +97,16 @@
 #### other supported panels
 - ED060SCT        6" grey levels, on Waveshare e-Paper IT8951 Driver HAT
 - ED060KC1        6" grey levels, 1448x1072, on Waveshare e-Paper IT8951 Driver HAT
+- ED078KC2        7.8" grey levels, 1872x1404, on Waveshare e-Paper IT8951 Driver HAT
 
 ### I can and will only support e-paper panels I have!
 - promotion panels from suppliers are welcome, to add support to GxEPD2
 - donation panels from users are welcome, to add support to GxEPD2
 
-### Version 1.3.4
+### Version 1.3.5
+- added support for GDEM0213B74 122x250 b/w e-paper panel
+- added support for ED078KC2, 7.8" grey levels, 1872x1404, on Waveshare e-Paper IT8951 Driver HAT
+#### Version 1.3.4
 - added support for GDEH116T91 960x640 b/w e-paper panel
 - GDEH116T91 has only full screen refresh, no wavetable for differential refresh yet
 - added support for processor Arduino Nano RP2040 Connect to the examples

examples/GxEPD2_Example/GxEPD2_Example.ino

@@ -1151,7 +1151,7 @@ void drawBitmaps800x480()
 void drawBitmaps800x600()
 {
 #if defined(ESP8266) || defined(ESP32)
-  if (display.epd2.panel == GxEPD2::ED060SCT)
+  if ((display.epd2.panel == GxEPD2::ED060SCT) || (display.epd2.panel == GxEPD2::ED060KC1) || (display.epd2.panel == GxEPD2::ED078KC2))
   {
     //    Serial.print("sizeof(WS_zoo_800x600) is "); Serial.println(sizeof(WS_zoo_800x600));
     display.drawNative(WS_zoo_800x600, 0, 0, 0, 800, 600, false, false, true);

examples/GxEPD2_Example/GxEPD2_display_selection.h

@@ -23,6 +23,7 @@
 //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
@@ -67,6 +68,7 @@
 // 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)
@@ -78,6 +80,7 @@
 //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
@@ -128,6 +131,7 @@
 //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
@@ -170,6 +174,7 @@
 // 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
@@ -191,6 +196,7 @@
 //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
@@ -246,6 +252,7 @@
 //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
@@ -298,6 +305,7 @@
 //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

examples/GxEPD2_Example/GxEPD2_display_selection_added.h

@@ -30,6 +30,7 @@
 //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
@@ -70,6 +71,7 @@
 // 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
@@ -90,6 +92,7 @@
 //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
@@ -130,6 +133,7 @@
 // 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
@@ -146,6 +150,7 @@
 //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
@@ -184,6 +189,7 @@
 // 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
@@ -200,6 +206,7 @@
 //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
@@ -238,6 +245,7 @@
 // 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
@@ -255,6 +263,7 @@
 //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
@@ -305,6 +314,7 @@
 //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

examples/GxEPD2_Example/GxEPD2_display_selection_new_style.h

@@ -27,6 +27,7 @@
 //#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
@@ -66,6 +67,7 @@
 // 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
@@ -187,6 +189,8 @@ GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> displ
 #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)

examples/GxEPD2_Example/GxEPD2_selection_check.h

@@ -21,6 +21,7 @@
 #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

examples/GxEPD2_GFX_Example/GxEPD2_display_selection.h

@@ -23,6 +23,7 @@
 //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
@@ -67,6 +68,7 @@
 // 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)
@@ -78,6 +80,7 @@
 //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
@@ -128,6 +131,7 @@
 //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
@@ -170,6 +174,7 @@
 // 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
@@ -191,6 +196,7 @@
 //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
@@ -246,6 +252,7 @@
 //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
@@ -298,6 +305,7 @@
 //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

examples/GxEPD2_GFX_Example/GxEPD2_display_selection_added.h

@@ -30,6 +30,7 @@
 //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
@@ -70,6 +71,7 @@
 // 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
@@ -90,6 +92,7 @@
 //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
@@ -130,6 +133,7 @@
 // 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
@@ -146,6 +150,7 @@
 //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
@@ -184,6 +189,7 @@
 // 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
@@ -200,6 +206,7 @@
 //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
@@ -238,6 +245,7 @@
 // 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
@@ -255,6 +263,7 @@
 //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
@@ -305,6 +314,7 @@
 //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

examples/GxEPD2_GFX_Example/GxEPD2_display_selection_new_style.h

@@ -27,6 +27,7 @@
 //#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
@@ -66,6 +67,7 @@
 // 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
@@ -187,6 +189,8 @@ GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> displ
 #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)

examples/GxEPD2_GFX_Example/GxEPD2_selection_check.h

@@ -21,6 +21,7 @@
 #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

examples/GxEPD2_HelloWorld/GxEPD2_display_selection.h

@@ -23,6 +23,7 @@
 //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
@@ -67,6 +68,7 @@
 // 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)
@@ -78,6 +80,7 @@
 //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
@@ -128,6 +131,7 @@
 //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
@@ -170,6 +174,7 @@
 // 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
@@ -191,6 +196,7 @@
 //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
@@ -246,6 +252,7 @@
 //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
@@ -298,6 +305,7 @@
 //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

examples/GxEPD2_HelloWorld/GxEPD2_display_selection_added.h

@@ -30,6 +30,7 @@
 //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
@@ -70,6 +71,7 @@
 // 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
@@ -90,6 +92,7 @@
 //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
@@ -130,6 +133,7 @@
 // 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
@@ -146,6 +150,7 @@
 //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
@@ -184,6 +189,7 @@
 // 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
@@ -200,6 +206,7 @@
 //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
@@ -238,6 +245,7 @@
 // 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
@@ -255,6 +263,7 @@
 //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
@@ -305,6 +314,7 @@
 //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

examples/GxEPD2_HelloWorld/GxEPD2_display_selection_new_style.h

@@ -27,6 +27,7 @@
 //#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
@@ -66,6 +67,7 @@
 // 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
@@ -187,6 +189,8 @@ GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> displ
 #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)

examples/GxEPD2_HelloWorld/GxEPD2_selection_check.h

@@ -21,6 +21,7 @@
 #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

examples/GxEPD2_MinimumExample/GxEPD2_display_selection_new_style.h

@@ -27,6 +27,7 @@
 //#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
@@ -66,6 +67,7 @@
 // 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
@@ -187,6 +189,8 @@ GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> displ
 #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)

examples/GxEPD2_MinimumExample/GxEPD2_selection_check.h

@@ -21,6 +21,7 @@
 #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

examples/GxEPD2_NotPagedExample/GxEPD2_display_selection_new_style.h

@@ -27,6 +27,7 @@
 //#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
@@ -66,6 +67,7 @@
 // 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
@@ -187,6 +189,8 @@ GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> displ
 #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)

examples/GxEPD2_NotPagedExample/GxEPD2_selection_check.h

@@ -21,6 +21,7 @@
 #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

examples/GxEPD2_PagedDisplayUsingCallback/GxEPD2_display_selection_new_style.h

@@ -27,6 +27,7 @@
 //#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
@@ -66,6 +67,7 @@
 // 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
@@ -187,6 +189,8 @@ GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> displ
 #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)

examples/GxEPD2_PagedDisplayUsingCallback/GxEPD2_selection_check.h

@@ -21,6 +21,7 @@
 #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

examples/GxEPD2_SD_Example/GxEPD2_display_selection_new_style.h

@@ -27,6 +27,7 @@
 //#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
@@ -66,6 +67,7 @@
 // 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
@@ -187,6 +189,8 @@ GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> displ
 #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)

examples/GxEPD2_SD_Example/GxEPD2_selection_check.h

@@ -21,6 +21,7 @@
 #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

examples/GxEPD2_SerialFlash_Example/GxEPD2_display_selection_new_style.h

@@ -27,6 +27,7 @@
 //#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
@@ -66,6 +67,7 @@
 // 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
@@ -187,6 +189,8 @@ GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> displ
 #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)

examples/GxEPD2_SerialFlash_Example/GxEPD2_selection_check.h

@@ -21,6 +21,7 @@
 #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

examples/GxEPD2_Spiffs_Example/GxEPD2_display_selection_new_style.h

@@ -27,6 +27,7 @@
 //#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
@@ -66,6 +67,7 @@
 // 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
@@ -187,6 +189,8 @@ GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> displ
 #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)

examples/GxEPD2_Spiffs_Example/GxEPD2_selection_check.h

@@ -21,6 +21,7 @@
 #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

examples/GxEPD2_U8G2_Fonts_Example/GxEPD2_display_selection_new_style.h

@@ -27,6 +27,7 @@
 //#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
@@ -66,6 +67,7 @@
 // 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
@@ -187,6 +189,8 @@ GxEPD2_DISPLAY_CLASS<GxEPD2_DRIVER_CLASS, MAX_HEIGHT(GxEPD2_DRIVER_CLASS)> displ
 #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)

examples/GxEPD2_U8G2_Fonts_Example/GxEPD2_selection_check.h

@@ -21,6 +21,7 @@
 #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

library.properties

@@ -1,5 +1,5 @@
 name=GxEPD2
-version=1.3.4
+version=1.3.5
 author=Jean-Marc Zingg
 maintainer=Jean-Marc Zingg
 sentence=Arduino Display Library for SPI E-Paper displays from Dalian Good Display and Waveshare. 
@@ -8,5 +8,3 @@ category=Display
 url=https://github.com/ZinggJM/GxEPD2
 architectures=*
 depends=Adafruit GFX Library
-#next line is for support of Particle development environment, ignored by Arduino IDE
-dependencies.Adafruit_GFX_RK=1.3.5

src/GxEPD2.h

@@ -43,6 +43,7 @@ class GxEPD2
       GDE0213B1,  Waveshare_2_13_bw = GDE0213B1,
       GDEH0213B72,  Waveshare_2_13_bw_B72 = GDEH0213B72,
       GDEH0213B73,  Waveshare_2_13_bw_B73 = GDEH0213B73,
+      GDEM0213B74,
       GDEW0213I5F, Waveshare_2_13_flex = GDEW0213I5F,
       GDEW0213M21,
       GDEW0213T5D,
@@ -65,6 +66,7 @@ class GxEPD2
       GDEW1248T3, Waveshare_12_24_bw = GDEW1248T3,
       ED060SCT, // on Waveshare IT8951 Driver HAT
       ED060KC1, // on Waveshare IT8951 Driver HAT 1448x1072
+      ED078KC2, // on Waveshare IT8951 Driver HAT 1872x1404
       // 3-color
       GDEW0154Z04, Waveshare_1_54_bwr = GDEW0154Z04,
       GDEH0154Z90, Waveshare_1_54_bwr_Z90 = GDEH0154Z90,

src/GxEPD2_BW.h

@@ -39,6 +39,7 @@
 #include "epd/GxEPD2_213.h"
 #include "epd/GxEPD2_213_B72.h"
 #include "epd/GxEPD2_213_B73.h"
+#include "epd/GxEPD2_213_B74.h"
 #include "epd/GxEPD2_213_flex.h"
 #include "epd/GxEPD2_213_M21.h"
 #include "epd/GxEPD2_213_T5D.h"
@@ -61,6 +62,7 @@
 #include "epd/GxEPD2_1248.h"
 #include "it8951/GxEPD2_it60.h"
 #include "it8951/GxEPD2_it60_1448x1072.h"
+#include "it8951/GxEPD2_it78_1872x1404.h"
 
 template<typename GxEPD2_Type, const uint16_t page_height>
 class GxEPD2_BW : public GxEPD2_GFX_BASE_CLASS

src/epd/GxEPD2_213_B74.cpp

@@ -0,0 +1,377 @@
+// 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, available here: http://www.e-paper-display.com/download_detail/downloadsId=806.html
+// Panel: GDEM0213B74 : https://www.good-display.com/product/375.html
+// Controller : SSD1680 : https://www.good-display.com/companyfile/101.html
+//
+// Author: Jean-Marc Zingg
+//
+// Version: see library.properties
+//
+// Library: https://github.com/ZinggJM/GxEPD2
+
+#include "GxEPD2_213_B74.h"
+
+GxEPD2_213_B74::GxEPD2_213_B74(int8_t cs, int8_t dc, int8_t rst, int8_t busy) :
+  GxEPD2_EPD(cs, dc, rst, busy, HIGH, 10000000, WIDTH, HEIGHT, panel, hasColor, hasPartialUpdate, hasFastPartialUpdate)
+{
+}
+
+void GxEPD2_213_B74::clearScreen(uint8_t value)
+{
+  writeScreenBuffer(value);
+  refresh(true);
+  writeScreenBufferAgain(value);
+}
+
+void GxEPD2_213_B74::writeScreenBuffer(uint8_t value)
+{
+  if (!_using_partial_mode) _Init_Part();
+  if (_initial_write) _writeScreenBuffer(0x26, value); // set previous
+  _writeScreenBuffer(0x24, value); // set current
+  _initial_write = false; // initial full screen buffer clean done
+}
+
+void GxEPD2_213_B74::writeScreenBufferAgain(uint8_t value)
+{
+  if (!_using_partial_mode) _Init_Part();
+  _writeScreenBuffer(0x24, value); // set current
+}
+
+void GxEPD2_213_B74::_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_213_B74::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(0x24, bitmap, x, y, w, h, invert, mirror_y, pgm);
+}
+
+void GxEPD2_213_B74::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(0x26, bitmap, x, y, w, h, invert, mirror_y, pgm);
+  _writeImage(0x24, bitmap, x, y, w, h, invert, mirror_y, pgm);
+}
+
+
+void GxEPD2_213_B74::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(0x24, bitmap, x, y, w, h, invert, mirror_y, pgm);
+}
+
+void GxEPD2_213_B74::_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();
+  _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);
+    }
+  }
+  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+}
+
+void GxEPD2_213_B74::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(0x24, bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
+}
+
+void GxEPD2_213_B74::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(0x24, bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
+}
+
+void GxEPD2_213_B74::_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();
+  _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);
+    }
+  }
+  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+}
+
+void GxEPD2_213_B74::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_213_B74::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_213_B74::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_213_B74::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_213_B74::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_213_B74::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_213_B74::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_213_B74::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_213_B74::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_213_B74::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();
+  _setPartialRamArea(x1, y1, w1, h1);
+  _Update_Part();
+}
+
+void GxEPD2_213_B74::powerOff()
+{
+  _PowerOff();
+}
+
+void GxEPD2_213_B74::hibernate()
+{
+  _PowerOff();
+  if (_rst >= 0)
+  {
+    _writeCommand(0x10); // deep sleep mode
+    _writeData(0x1);     // enter deep sleep
+    _hibernating = true;
+  }
+}
+
+void GxEPD2_213_B74::_setPartialRamArea(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
+{
+  _writeCommand(0x11); // set ram entry mode
+  _writeData(0x03);    // x increase, y increase : normal mode
+  _writeCommand(0x44);
+  _writeData(x / 8);
+  _writeData((x + w - 1) / 8);
+  _writeCommand(0x45);
+  _writeData(y % 256);
+  _writeData(y / 256);
+  _writeData((y + h - 1) % 256);
+  _writeData((y + h - 1) / 256);
+  _writeCommand(0x4e);
+  _writeData(x / 8);
+  _writeCommand(0x4f);
+  _writeData(y % 256);
+  _writeData(y / 256);
+}
+
+void GxEPD2_213_B74::_PowerOn()
+{
+  if (!_power_is_on)
+  {
+    _writeCommand(0x22);
+    _writeData(0xf8);
+    _writeCommand(0x20);
+    _waitWhileBusy("_PowerOn", power_on_time);
+  }
+  _power_is_on = true;
+}
+
+void GxEPD2_213_B74::_PowerOff()
+{
+  if (_power_is_on)
+  {
+    _writeCommand(0x22);
+    _writeData(0x83);
+    _writeCommand(0x20);
+    _waitWhileBusy("_PowerOff", power_off_time);
+  }
+  _power_is_on = false;
+  _using_partial_mode = false;
+}
+
+void GxEPD2_213_B74::_InitDisplay()
+{
+  if (_hibernating) _reset();
+  delay(10); // 10ms according to specs
+  _writeCommand(0x12);  //SWRESET
+  delay(10); // 10ms according to specs
+  _writeCommand(0x01); //Driver output control
+  _writeData(0xF9);
+  _writeData(0x00);
+  _writeData(0x00);
+  _writeCommand(0x3C); //BorderWavefrom
+  _writeData(0x05);
+  _writeCommand(0x21); //  Display update control
+  _writeData(0x00);
+  _writeData(0x80);
+  _writeCommand(0x18); //Read built-in temperature sensor
+  _writeData(0x80);
+  _setPartialRamArea(0, 0, WIDTH, HEIGHT);
+}
+
+void GxEPD2_213_B74::_Init_Full()
+{
+  _InitDisplay();
+  _PowerOn();
+  _using_partial_mode = false;
+}
+
+void GxEPD2_213_B74::_Init_Part()
+{
+  _InitDisplay();
+  _PowerOn();
+  _using_partial_mode = true;
+}
+
+void GxEPD2_213_B74::_Update_Full()
+{
+  _writeCommand(0x22);
+  _writeData(0xf4);
+  _writeCommand(0x20);
+  _waitWhileBusy("_Update_Full", full_refresh_time);
+}
+
+void GxEPD2_213_B74::_Update_Part()
+{
+  _writeCommand(0x22);
+  _writeData(0xfc);
+  _writeCommand(0x20);
+  _waitWhileBusy("_Update_Part", partial_refresh_time);
+}

src/epd/GxEPD2_213_B74.h

@@ -0,0 +1,82 @@
+// 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, available here: http://www.e-paper-display.com/download_detail/downloadsId=806.html
+// Panel: GDEM0213B74 : https://www.good-display.com/product/375.html
+// Controller : SSD1680 : https://www.good-display.com/companyfile/101.html
+//
+// Author: Jean-Marc Zingg
+//
+// Version: see library.properties
+//
+// Library: https://github.com/ZinggJM/GxEPD2
+
+#ifndef _GxEPD2_213_B74_H_
+#define _GxEPD2_213_B74_H_
+
+#include "../GxEPD2_EPD.h"
+
+class GxEPD2_213_B74 : public GxEPD2_EPD
+{
+  public:
+    // attributes
+    static const uint16_t WIDTH = 128;
+    static const uint16_t HEIGHT = 250;
+    static const GxEPD2::Panel panel = GxEPD2::GDEM0213B74;
+    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. 95109us
+    static const uint16_t power_off_time = 150; // ms, e.g. 140344us
+    static const uint16_t full_refresh_time = 3600; // ms, e.g. 3501806us
+    static const uint16_t partial_refresh_time = 500; // ms, e.g. 455406us
+    // constructor
+    GxEPD2_213_B74(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();
+};
+
+#endif

src/it8951/GxEPD2_it78_1872x1404.cpp

@@ -0,0 +1,679 @@
+// Display Library for SPI e-paper panels from Dalian Good Display and boards from Waveshare.
+// Requires HW SPI and Adafruit_GFX. Caution: these e-papers require 3.3V supply AND data lines!
+//
+// GxEPD2_it78_1872x1404 class is based on Demo Example from Waveshare for Raspberry PI https://github.com/waveshare/IT8951/archive/master.zip
+// Controller: IT8951 : https://www.waveshare.com/w/upload/1/18/IT8951_D_V0.2.4.3_20170728.pdf
+//
+// The GxEPD2_it78_1872x1404 driver class supports the Waveshare e-Paper IT8951 Driver HAT connected with SPI for the ED078KC2 7.8" e-paper panel (parallel IF)
+// https://www.waveshare.com/product/displays/e-paper/7.8inch-e-paper-hat.htm
+// This Driver HAT requires 5V power supply but works with 3.3V data lines; requires both MOSI and MISO SPI lines.
+//
+// Author: Jean-Marc Zingg
+//
+// Version: see library.properties
+//
+// Library: https://github.com/ZinggJM/GxEPD2
+
+#include "GxEPD2_it78_1872x1404.h"
+
+#define VCOM  1500 //e.g. -1.53 = 1530 = 0x5FA
+
+//Built in I80 Command Code
+#define IT8951_TCON_SYS_RUN      0x0001
+#define IT8951_TCON_STANDBY      0x0002
+#define IT8951_TCON_SLEEP        0x0003
+#define IT8951_TCON_REG_RD       0x0010
+#define IT8951_TCON_REG_WR       0x0011
+#define IT8951_TCON_LD_IMG       0x0020
+#define IT8951_TCON_LD_IMG_AREA  0x0021
+#define IT8951_TCON_LD_IMG_END   0x0022
+
+//I80 User defined command code
+#define USDEF_I80_CMD_DPY_AREA     0x0034
+#define USDEF_I80_CMD_GET_DEV_INFO 0x0302
+#define USDEF_I80_CMD_DPY_BUF_AREA 0x0037
+#define USDEF_I80_CMD_VCOM       0x0039
+
+//Rotate mode
+#define IT8951_ROTATE_0     0
+#define IT8951_ROTATE_90    1
+#define IT8951_ROTATE_180   2
+#define IT8951_ROTATE_270   3
+
+//Pixel mode , BPP - Bit per Pixel
+#define IT8951_2BPP   0
+#define IT8951_3BPP   1
+#define IT8951_4BPP   2
+#define IT8951_8BPP   3
+
+//Endian Type
+#define IT8951_LDIMG_L_ENDIAN   0
+#define IT8951_LDIMG_B_ENDIAN   1
+
+#define SYS_REG_BASE 0x0000
+#define I80CPCR (SYS_REG_BASE + 0x04)
+#define MCSR_BASE_ADDR 0x0200
+#define LISAR (MCSR_BASE_ADDR + 0x0008)
+
+GxEPD2_it78_1872x1404::GxEPD2_it78_1872x1404(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),
+  _spi_settings(24000000, MSBFIRST, SPI_MODE0),
+  _spi_settings_for_read(1000000, MSBFIRST, SPI_MODE0)
+{
+}
+
+void GxEPD2_it78_1872x1404::init(uint32_t serial_diag_bitrate)
+{
+  init(serial_diag_bitrate, true, 20, false);
+}
+
+void GxEPD2_it78_1872x1404::init(uint32_t serial_diag_bitrate, bool initial, uint16_t reset_duration, bool pulldown_rst_mode)
+{
+  GxEPD2_EPD::init(serial_diag_bitrate, initial, reset_duration, pulldown_rst_mode);
+
+  // we need a long reset pulse
+  if (_rst >= 0)
+  {
+    digitalWrite(_rst, LOW);
+    delay(200);
+    digitalWrite(_rst, HIGH);
+    delay(200);
+    _waitWhileBusy("init reset_to_ready", reset_to_ready_time);
+  }
+
+  _writeCommand16(USDEF_I80_CMD_GET_DEV_INFO);
+  _waitWhileBusy("GetIT8951SystemInfo", power_on_time);
+  _readData16((uint16_t*)&IT8951DevInfo, sizeof(IT8951DevInfo) / 2);
+  if (_diag_enabled)
+  {
+    //Show Device information of IT8951
+    printf("Panel(W,H) = (%d,%d)\r\n",
+           IT8951DevInfo.usPanelW, IT8951DevInfo.usPanelH );
+    printf("Image Buffer Address = %X\r\n",
+           uint32_t(IT8951DevInfo.usImgBufAddrL) | (uint32_t(IT8951DevInfo.usImgBufAddrH) << 16));
+    //Show Firmware and LUT Version
+    printf("FW Version = %s\r\n", (uint8_t*)IT8951DevInfo.usFWVersion);
+    printf("LUT Version = %s\r\n", (uint8_t*)IT8951DevInfo.usLUTVersion);
+  }
+  //Set to Enable I80 Packed mode
+  _IT8951WriteReg(I80CPCR, 0x0001);
+  if (VCOM != _IT8951GetVCOM())
+  {
+    _IT8951SetVCOM(VCOM);
+    printf("VCOM = -%.02fV\n", (float)_IT8951GetVCOM() / 1000);
+  }
+  printf("VCOM = -%.02fV\n", (float)_IT8951GetVCOM() / 1000);
+}
+
+void GxEPD2_it78_1872x1404::clearScreen(uint8_t value)
+{
+  _initial_write = false; // initial full screen buffer clean done
+  if (_initial_refresh) _Init_Full();
+  else _Init_Part();
+  _initial_refresh = false;
+  _setPartialRamArea(0, 0, WIDTH, HEIGHT);
+  SPI.beginTransaction(_spi_settings);
+  if (_cs >= 0) digitalWrite(_cs, LOW);
+  _transfer16(0x0000); // preamble for write data
+  _waitWhileBusy2("clearScreen preamble", default_wait_time);
+  for (uint32_t i = 0; i < uint32_t(WIDTH) * uint32_t(HEIGHT); i++)
+  {
+    SPI.transfer(value);
+#if defined(ESP8266) || defined(ESP32)
+    if (0 == i % 10000) yield();
+#endif
+  }
+  if (_cs >= 0) digitalWrite(_cs, HIGH);
+  SPI.endTransaction();
+  _writeCommand16(IT8951_TCON_LD_IMG_END);
+  _waitWhileBusy2("clearScreen load end", default_wait_time);
+  _refresh(0, 0, WIDTH, HEIGHT, false);
+}
+
+void GxEPD2_it78_1872x1404::writeScreenBuffer(uint8_t value)
+{
+  if (_initial_refresh) clearScreen(value);
+  else _writeScreenBuffer(value);
+}
+
+void GxEPD2_it78_1872x1404::_writeScreenBuffer(uint8_t value)
+{
+  _initial_write = false; // initial full screen buffer clean done
+  if (!_using_partial_mode) _Init_Part();
+  _setPartialRamArea(0, 0, WIDTH, HEIGHT);
+  SPI.beginTransaction(_spi_settings);
+  if (_cs >= 0) digitalWrite(_cs, LOW);
+  _transfer16(0x0000); // preamble for write data
+  _waitWhileBusy2("clearScreen preamble", default_wait_time);
+  for (uint32_t i = 0; i < uint32_t(WIDTH) * uint32_t(HEIGHT); i++)
+  {
+    SPI.transfer(value);
+#if defined(ESP8266) || defined(ESP32)
+    if (0 == i % 10000) yield();
+#endif
+  }
+  if (_cs >= 0) digitalWrite(_cs, HIGH);
+  SPI.endTransaction();
+  _writeCommand16(IT8951_TCON_LD_IMG_END);
+  _waitWhileBusy2("_writeScreenBuffer load end", default_wait_time);
+}
+
+void GxEPD2_it78_1872x1404::writeImage(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();
+  _setPartialRamArea(x1, y1, w1, h1);
+  SPI.beginTransaction(_spi_settings);
+  if (_cs >= 0) digitalWrite(_cs, LOW);
+  _transfer16(0x0000); // preamble for write data
+  _waitWhileBusy2("writeImage preamble", default_wait_time);
+  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!
+      uint32_t idx = mirror_y ? uint32_t(j + dx / 8) + uint32_t((h - 1 - (i + dy))) * uint32_t(wb) : uint32_t(j + dx / 8) + uint32_t(i + dy) * uint32_t(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;
+      _send8pixel(~data);
+    }
+#if defined(ESP8266) || defined(ESP32)
+    yield();
+#endif
+  }
+  if (_cs >= 0) digitalWrite(_cs, HIGH);
+  SPI.endTransaction();
+  _writeCommand16(IT8951_TCON_LD_IMG_END);
+  _waitWhileBusy2("writeImage load end", default_wait_time);
+  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+}
+
+void GxEPD2_it78_1872x1404::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)
+{
+  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();
+  _setPartialRamArea(x1, y1, w1, h1);
+  SPI.beginTransaction(_spi_settings);
+  if (_cs >= 0) digitalWrite(_cs, LOW);
+  _transfer16(0x0000); // preamble for write data
+  _waitWhileBusy2("writeImage preamble", default_wait_time);
+  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!
+      uint32_t idx = mirror_y ? x_part / 8 + (j + dx / 8) + uint32_t((h_bitmap - 1 - (y_part + i + dy))) * uint32_t(wb_bitmap) : x_part / 8 + j + dx / 8 + uint32_t(y_part + i + dy) * uint32_t(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;
+      _send8pixel(~data);
+    }
+  }
+  if (_cs >= 0) digitalWrite(_cs, HIGH);
+  SPI.endTransaction();
+  _writeCommand16(IT8951_TCON_LD_IMG_END);
+  _waitWhileBusy2("writeImage load end", default_wait_time);
+  delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+}
+
+void GxEPD2_it78_1872x1404::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_it78_1872x1404::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_it78_1872x1404::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)
+  {
+    if (_initial_write) writeScreenBuffer(); // initial full screen buffer clean
+    delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+    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();
+    _setPartialRamArea(x1, y1, w1, h1);
+    SPI.beginTransaction(_spi_settings);
+    if (_cs >= 0) digitalWrite(_cs, LOW);
+    _transfer16(0x0000); // preamble for write data
+    _waitWhileBusy2("writeNative preamble", default_wait_time);
+    for (int16_t i = 0; i < h1; i++)
+    {
+      for (int16_t j = 0; j < w1; j++)
+      {
+        uint8_t data;
+        // use w, h of bitmap for index!
+        uint32_t idx = mirror_y ? uint32_t(j + dx) + uint32_t((h - 1 - (i + dy))) * uint32_t(w) : uint32_t(j + dx) + uint32_t(i + dy) * uint32_t(w);
+        if (pgm)
+        {
+#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
+          data = pgm_read_byte(&data1[idx]);
+#else
+          data = data1[idx];
+#endif
+        }
+        else
+        {
+          data = data1[idx];
+        }
+        if (invert) data = ~data;
+        SPI.transfer(data);
+      }
+#if defined(ESP8266) || defined(ESP32)
+      yield();
+#endif
+    }
+    if (_cs >= 0) digitalWrite(_cs, HIGH);
+    SPI.endTransaction();
+    _writeCommand16(IT8951_TCON_LD_IMG_END);
+    _waitWhileBusy2("writeNative load end", default_wait_time);
+    delay(1); // yield() to avoid WDT on ESP8266 and ESP32
+  }
+}
+
+void GxEPD2_it78_1872x1404::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, true);
+}
+
+void GxEPD2_it78_1872x1404::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, true);
+}
+
+void GxEPD2_it78_1872x1404::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, true);
+}
+
+void GxEPD2_it78_1872x1404::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, true);
+}
+
+void GxEPD2_it78_1872x1404::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, false);
+}
+
+void GxEPD2_it78_1872x1404::refresh(bool partial_update_mode)
+{
+  _refresh(0, 0, WIDTH, HEIGHT, partial_update_mode);
+}
+
+void GxEPD2_it78_1872x1404::refresh(int16_t x, int16_t y, int16_t w, int16_t h)
+{
+  _refresh(x, y, w, h, true);
+}
+
+void GxEPD2_it78_1872x1404::_refresh(int16_t x, int16_t y, int16_t w, int16_t h, bool partial_update_mode)
+{
+  //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;
+  //Send I80 Display Command (User defined command of IT8951)
+  _writeCommand16(USDEF_I80_CMD_DPY_AREA); //0x0034
+  _waitWhileBusy2("refresh cmd", refresh_cmd_time);
+  //Write arguments
+  _writeData16(x1);
+  _waitWhileBusy2("refresh x", refresh_par_time);
+  _writeData16(y1);
+  _waitWhileBusy2("refresh y", refresh_par_time);
+  _writeData16(w1);
+  _waitWhileBusy2("refresh w", refresh_par_time);
+  _writeData16(h1);
+  _waitWhileBusy2("refresh h", refresh_par_time);
+  _writeData16(partial_update_mode ? 1 : 2); // mode
+  _waitWhileBusy("refresh", full_refresh_time);
+}
+
+void GxEPD2_it78_1872x1404::powerOff(void)
+{
+  _PowerOff();
+}
+
+void GxEPD2_it78_1872x1404::hibernate()
+{
+  if (_power_is_on) _PowerOff();
+  if (_rst >= 0)
+  {
+    // this does not work, does not reduce power, uses more than in stand by mode
+    //delay(1000);
+    //_IT8951Sleep();
+    //delay(1000);
+    //_hibernating = true;
+  }
+}
+
+void GxEPD2_it78_1872x1404::_send8pixel(uint8_t data)
+{
+  for (uint8_t j = 0; j < 8; j++)
+  {
+    SPI.transfer(data & 0x80 ? 0x00 : 0xFF);
+    data <<= 1;
+  }
+}
+
+void GxEPD2_it78_1872x1404::_setPartialRamArea(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
+{
+  //_IT8951WriteReg(LISAR + 2 , IT8951DevInfo.usImgBufAddrH);
+  //_IT8951WriteReg(LISAR , IT8951DevInfo.usImgBufAddrL);
+  uint16_t usArg[5];
+  //usArg[0] = (IT8951_LDIMG_L_ENDIAN << 8 ) | (IT8951_8BPP << 4) | (IT8951_ROTATE_0);
+  usArg[0] = (IT8951_LDIMG_B_ENDIAN << 8 ) | (IT8951_8BPP << 4) | (IT8951_ROTATE_0);
+  usArg[1] = x;
+  usArg[2] = y;
+  usArg[3] = w;
+  usArg[4] = h;
+  _writeCommandData16(IT8951_TCON_LD_IMG_AREA , usArg , 5);
+}
+
+void GxEPD2_it78_1872x1404::_PowerOn()
+{
+  if (!_power_is_on)
+  {
+    _IT8951SystemRun();
+    _waitWhileBusy("_PowerOn", power_on_time);
+  }
+  _power_is_on = true;
+}
+
+void GxEPD2_it78_1872x1404::_PowerOff()
+{
+  _IT8951StandBy();
+  _waitWhileBusy("_PowerOff", power_off_time);
+  _power_is_on = false;
+  _using_partial_mode = false;
+}
+
+void GxEPD2_it78_1872x1404::_InitDisplay()
+{
+  // we need a long reset pulse
+  if (_hibernating && (_rst >= 0))
+  {
+    digitalWrite(_rst, LOW);
+    delay(200);
+    digitalWrite(_rst, HIGH);
+    delay(200);
+  }
+}
+
+void GxEPD2_it78_1872x1404::_Init_Full()
+{
+  _InitDisplay();
+  _PowerOn();
+  _using_partial_mode = false;
+}
+
+void GxEPD2_it78_1872x1404::_Init_Part()
+{
+  _InitDisplay();
+  _PowerOn();
+  _using_partial_mode = true;
+}
+
+void GxEPD2_it78_1872x1404::_waitWhileBusy2(const char* comment, uint16_t busy_time)
+{
+  if (_busy >= 0)
+  {
+    unsigned long start = micros();
+    while (1)
+    {
+      if (digitalRead(_busy) != _busy_level) break;
+      delay(1);
+      if (micros() - start > _busy_timeout)
+      {
+        Serial.println("Busy Timeout!");
+        break;
+      }
+    }
+    if (comment)
+    {
+#if !defined(DISABLE_DIAGNOSTIC_OUTPUT)
+      if (_diag_enabled)
+      {
+        unsigned long elapsed = micros() - start;
+        if (elapsed > diag_min_time * 1000)
+        {
+          Serial.print(comment);
+          Serial.print(" : ");
+          Serial.println(elapsed);
+        }
+      }
+#endif
+    }
+    (void) start;
+  }
+  else delay(busy_time);
+}
+
+uint16_t GxEPD2_it78_1872x1404::_transfer16(uint16_t value)
+{
+  uint16_t rv = SPI.transfer(value >> 8) << 8;
+  return (rv | SPI.transfer(value));
+}
+
+void GxEPD2_it78_1872x1404::_writeCommand16(uint16_t c)
+{
+  String s = String("_writeCommand16(0x") + String(c, HEX) + String(")");
+  _waitWhileBusy2(s.c_str(), default_wait_time);
+  SPI.beginTransaction(_spi_settings);
+  if (_cs >= 0) digitalWrite(_cs, LOW);
+  _transfer16(0x6000); // preamble for write command
+  _waitWhileBusy2("_writeCommand16 preamble", default_wait_time);
+  _transfer16(c);
+  if (_cs >= 0) digitalWrite(_cs, HIGH);
+  SPI.endTransaction();
+  //_waitWhileBusy(s.c_str(), default_wait_time);
+}
+
+void GxEPD2_it78_1872x1404::_writeData16(uint16_t d)
+{
+  _waitWhileBusy2("_writeData16", default_wait_time);
+  SPI.beginTransaction(_spi_settings);
+  if (_cs >= 0) digitalWrite(_cs, LOW);
+  _transfer16(0x0000); // preamble for write data
+  _waitWhileBusy2("_writeData16 preamble", default_wait_time);
+  _transfer16(d);
+  if (_cs >= 0) digitalWrite(_cs, HIGH);
+  SPI.endTransaction();
+}
+
+void GxEPD2_it78_1872x1404::_writeData16(const uint16_t* d, uint32_t n)
+{
+  _waitWhileBusy2("_writeData16", default_wait_time);
+  SPI.beginTransaction(_spi_settings);
+  if (_cs >= 0) digitalWrite(_cs, LOW);
+  _transfer16(0x0000); // preamble for write data
+  _waitWhileBusy2("_writeData16 preamble", default_wait_time);
+  for (uint32_t i = 0; i < n; i++)
+  {
+    _transfer16(*d++);
+  }
+  if (_cs >= 0) digitalWrite(_cs, HIGH);
+  SPI.endTransaction();
+}
+
+uint16_t GxEPD2_it78_1872x1404::_readData16()
+{
+  _waitWhileBusy2("_readData16", default_wait_time);
+  SPI.beginTransaction(_spi_settings);
+  if (_cs >= 0) digitalWrite(_cs, LOW);
+  _transfer16(0x1000); // preamble for read data
+  _waitWhileBusy2("_readData16 preamble", default_wait_time);
+  _transfer16(0); // dummy
+  _waitWhileBusy2("_readData16 dummy", default_wait_time);
+  uint16_t rv = _transfer16(0);
+  if (_cs >= 0) digitalWrite(_cs, HIGH);
+  SPI.endTransaction();
+  return rv;
+}
+
+void GxEPD2_it78_1872x1404::_readData16(uint16_t* d, uint32_t n)
+{
+  _waitWhileBusy2("_readData16", default_wait_time);
+  SPI.beginTransaction(_spi_settings);
+  if (_cs >= 0) digitalWrite(_cs, LOW);
+  _transfer16(0x1000); // preamble for read data
+  _waitWhileBusy2("_readData16 preamble", default_wait_time);
+  _transfer16(0); // dummy
+  _waitWhileBusy2("_readData16 dummy", default_wait_time);
+  for (uint32_t i = 0; i < n; i++)
+  {
+    *d++ = _transfer16(0);
+    //_waitWhileBusy("_readData16 data", default_wait_time);
+  }
+  if (_cs >= 0) digitalWrite(_cs, HIGH);
+  SPI.endTransaction();
+}
+
+void GxEPD2_it78_1872x1404::_writeCommandData16(uint16_t c, const uint16_t* d, uint16_t n)
+{
+  _writeCommand16(c);
+  for (uint16_t i = 0; i < n; i++)
+  {
+    _writeData16(d[i]);
+  }
+}
+
+void GxEPD2_it78_1872x1404::_IT8951SystemRun()
+{
+  _writeCommand16(IT8951_TCON_SYS_RUN);
+}
+
+void GxEPD2_it78_1872x1404::_IT8951StandBy()
+{
+  _writeCommand16(IT8951_TCON_STANDBY);
+}
+
+void GxEPD2_it78_1872x1404::_IT8951Sleep()
+{
+  _writeCommand16(IT8951_TCON_SLEEP);
+}
+
+uint16_t GxEPD2_it78_1872x1404::_IT8951ReadReg(uint16_t usRegAddr)
+{
+  uint16_t usData;
+
+  //Send Cmd and Register Address
+  _writeCommand16(IT8951_TCON_REG_RD);
+  _writeData16(usRegAddr);
+  //Read data from Host Data bus
+  usData = _readData16();
+  return usData;
+}
+
+void GxEPD2_it78_1872x1404::_IT8951WriteReg(uint16_t usRegAddr, uint16_t usValue)
+{
+  //Send Cmd , Register Address and Write Value
+  _writeCommand16(IT8951_TCON_REG_WR);
+  _writeData16(usRegAddr);
+  _writeData16(usValue);
+}
+
+uint16_t GxEPD2_it78_1872x1404::_IT8951GetVCOM(void)
+{
+  uint16_t vcom;
+
+  _writeCommand16(USDEF_I80_CMD_VCOM);
+  _waitWhileBusy2("_IT8951GetVCOM", default_wait_time);
+  _writeData16(0);
+  //Read data from Host Data bus
+  vcom = _readData16();
+  return vcom;
+}
+
+void GxEPD2_it78_1872x1404::_IT8951SetVCOM(uint16_t vcom)
+{
+  _writeCommand16(USDEF_I80_CMD_VCOM);
+  _waitWhileBusy2("_IT8951SetVCOM", default_wait_time);
+  _writeData16(1);
+  //Read data from Host Data bus
+  _writeData16(vcom);
+  _waitWhileBusy2("_IT8951SetVCOM", set_vcom_time);
+}

src/it8951/GxEPD2_it78_1872x1404.h

@@ -0,0 +1,113 @@
+// Display Library for SPI e-paper panels from Dalian Good Display and boards from Waveshare.
+// Requires HW SPI and Adafruit_GFX. Caution: these e-papers require 3.3V supply AND data lines!
+//
+// GxEPD2_it78_1872x1404 class is based on Demo Example from Waveshare for Raspberry PI https://github.com/waveshare/IT8951/archive/master.zip
+// Controller: IT8951 : https://www.waveshare.com/w/upload/1/18/IT8951_D_V0.2.4.3_20170728.pdf
+//
+// The GxEPD2_it78_1872x1404 driver class supports the Waveshare e-Paper IT8951 Driver HAT connected with SPI for the ED078KC2 7.8" e-paper panel (parallel IF)
+// https://www.waveshare.com/product/displays/e-paper/7.8inch-e-paper-hat.htm
+// This Driver HAT requires 5V power supply but works with 3.3V data lines; requires both MOSI and MISO SPI lines.
+//
+// Author: Jean-Marc Zingg
+//
+// Version: see library.properties
+//
+// Library: https://github.com/ZinggJM/GxEPD2
+
+#ifndef _GxEPD2_it78_1872x1404_H_
+#define _GxEPD2_it78_1872x1404_H_
+
+#include "../GxEPD2_EPD.h"
+
+class GxEPD2_it78_1872x1404 : public GxEPD2_EPD
+{
+  public:
+    // attributes
+    static const uint16_t WIDTH = 1872;
+    static const uint16_t HEIGHT = 1404;
+    static const GxEPD2::Panel panel = GxEPD2::ED078KC2;
+    static const bool hasColor = false;
+    static const bool hasPartialUpdate = true;
+    static const bool hasFastPartialUpdate = true;
+    static const uint16_t reset_to_ready_time = 1800; // ms, e.g. 1729001us
+    static const uint16_t power_on_time = 10; // ms, e.g. 3001us
+    static const uint16_t power_off_time = 250; // ms, e.g. 214001us
+    static const uint16_t full_refresh_time = 650; // ms, e.g. 629001us
+    static const uint16_t partial_refresh_time = 300; // ms, e.g. 287001us
+    static const uint16_t refresh_cmd_time = 10; // ms, e.g. 6052us
+    static const uint16_t refresh_par_time = 2; // ms, e.g. 1921us
+    static const uint16_t default_wait_time = 1; // ms, default busy check, needed?
+    static const uint16_t diag_min_time = 3; // ms, e.g. > refresh_par_time
+    static const uint16_t set_vcom_time = 500; // ms, e.g. 454967us
+    // constructor
+    GxEPD2_it78_1872x1404(int8_t cs, int8_t dc, int8_t rst, int8_t busy);
+    // methods (virtual)
+    void init(uint32_t serial_diag_bitrate = 0); // serial_diag_bitrate = 0 : disabled
+    void init(uint32_t serial_diag_bitrate, bool initial, uint16_t reset_duration = 20, bool pulldown_rst_mode = false);
+    //  Support for Bitmaps (Sprites) to Controller Buffer and to Screen
+    void clearScreen(uint8_t value = 0x33); // init controller memory and screen (default white)
+    void writeScreenBuffer(uint8_t value = 0x33); // init 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 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:
+    struct IT8951DevInfoStruct
+    {
+      uint16_t usPanelW;
+      uint16_t usPanelH;
+      uint16_t usImgBufAddrL;
+      uint16_t usImgBufAddrH;
+      uint16_t usFWVersion[8];   //16 Bytes String
+      uint16_t usLUTVersion[8];   //16 Bytes String
+    };
+    IT8951DevInfoStruct IT8951DevInfo;
+    SPISettings _spi_settings;
+    SPISettings _spi_settings_for_read;
+  private:
+    void _writeScreenBuffer(uint8_t value);
+    void _refresh(int16_t x, int16_t y, int16_t w, int16_t h, bool partial_update_mode);
+    void _send8pixel(uint8_t data);
+    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();
+    // IT8951
+    void _waitWhileBusy2(const char* comment = 0, uint16_t busy_time = 5000);
+    uint16_t _transfer16(uint16_t value);
+    void _writeCommand16(uint16_t c);
+    void _writeData16(uint16_t d);
+    void _writeData16(const uint16_t* d, uint32_t n);
+    uint16_t _readData16();
+    void _readData16(uint16_t* d, uint32_t n);
+    void _writeCommandData16(uint16_t c, const uint16_t* d, uint16_t n);
+    void _IT8951SystemRun();
+    void _IT8951StandBy();
+    void _IT8951Sleep();
+    uint16_t _IT8951ReadReg(uint16_t usRegAddr);
+    void _IT8951WriteReg(uint16_t usRegAddr, uint16_t usValue);
+    uint16_t _IT8951GetVCOM(void);
+    void _IT8951SetVCOM(uint16_t vcom);
+};
+
+#endif