GxEPD2-esphome/tests/test_pattern_bar_ladder_diagonal.esp32-idf.yaml

# Canonical bench visual-check pattern, not a minimal smoke test like the
# other fixtures in this directory. Scales to any panel via
# it.get_width()/it.get_height(); each zone targets a specific bug class -
# see claude/DESIGN.md's "Bench test pattern" section for the full
# rationale. This is the actual pattern (previously only ever staged
# on-device, never committed) whose row ladder + diagonal caught the
# GDEY0579F51 row-interleave bug and confirmed the fix - see the
# gxepd2-bench-validation-status memory.
#
# Wired here against GDEY0579F51 (4-color, dual-CS master+slave,
# row_interleave: true) since that's the panel this pattern was built to
# debug, but the lambda itself is panel-agnostic - copy it into any other
# color-capable fixture's `lambda:` unchanged.
esphome:
  name: gxepd2-test-pattern
esp32:
  board: esp32dev
  framework:
    type: esp-idf
external_components:
  - source:
      type: local
      path: ../components
    components: [gxepd2]
spi:
  clk_pin: 18
  mosi_pin: 23
logger:
# gfonts:// is fetched by the builder at compile time - no local font file to
# vendor. Used only for test_pattern()'s model-trailer label.
font:
  - file: "gfonts://Roboto"
    id: panel_label_font
    size: 24
display:
  - platform: gxepd2
    id: gxepd2_test
    model: GxEPD2_579c_GDEY0579F51
    cs_pin: 5
    dc_pin: 17
    reset_pin: 16
    busy_pin: 4
    name_font: panel_label_font
    update_interval: 60s
    # The whole pattern now lives in GxEPD2Display::test_pattern() (C++), so
    # it can read this panel's descriptor directly and scale the bar count,
    # ladder cycle and corner markers to the colors it can actually show -
    # the lambda just invokes it. See gxepd2_display.h for the zone rationale
    # that used to live in this block.
    lambda: |-
      id(gxepd2_test).test_pattern();