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fix(examples): use esp32-devkit-c-v4 for ePaper examples (GPIO 16/17) 

The 4 ESP32 ePaper examples (BW weather, BWR alert, UC8179 dashboard,
ACeP rainbow) wired GxEPD2 to GPIO 16 (RST) and GPIO 17 (DC), which is
the canonical pinout shown in every GxEPD2 example. But those pins are
not broken out on the DevKit V1 variant (PINS_ESP32) — they only exist
on DevKit-C-V4 (PINS_ESP32_DEVKIT_C_V4).

Result: the RST and DC wires fell back to (0,0) and rendered as a red
+ purple line shooting from the corner of the board. CLAUDE.md §6a
documents this exact symptom.

Switching boardType to 'esp32-devkit-c-v4' renders the variant whose
pinInfo includes 16 and 17. Also rename pinName 'GND' → 'GND.1' since
DevKit-C-V4 exposes three GND pins as GND.1/2/3 (not a plain 'GND').

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
David Montero 2026-05-04 06:37:20 +02:00
parent eb9a3ec92f
commit 78a834700b
1 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
frontend/src/data/examples-displays-epaper.ts
View File

@ -158,7 +158,7 @@ const weatherEsp29: ExampleProject = {
'back to the browser as an `epaper_update` WebSocket event.',
category: 'displays',
difficulty: 'intermediate',
boardType: 'esp32',
boardType: 'esp32-devkit-c-v4',
boardFilter: 'esp32',
libraries: EPAPER_LIBS,
tags: ['epaper', 'e-ink', 'gxepd2', 'ssd1680', 'esp32', 'weather'],
@ -207,7 +207,7 @@ void loop() { delay(1000); }
{ id: 'w-mosi', start: { componentId: 'esp32', pinName: '23' }, end: { componentId: 'epd-290', pinName: 'SDI' }, color: '#22aaff' },
{ id: 'w-sck', start: { componentId: 'esp32', pinName: '18' }, end: { componentId: 'epd-290', pinName: 'SCK' }, color: '#ffdd33' },
{ id: 'w-vcc', start: { componentId: 'esp32', pinName: '3V3' }, end: { componentId: 'epd-290', pinName: 'VCC' }, color: '#ff4444' },
{ id: 'w-gnd', start: { componentId: 'esp32', pinName: 'GND' }, end: { componentId: 'epd-290', pinName: 'GND' }, color: '#000000' },
{ id: 'w-gnd', start: { componentId: 'esp32', pinName: 'GND.1' }, end: { componentId: 'epd-290', pinName: 'GND' }, color: '#000000' },
],
};
@ -295,7 +295,7 @@ const dashboardEsp750: ExampleProject = {
'is too big for AVR/Pico flash with paged GxEPD2.',
category: 'displays',
difficulty: 'advanced',
boardType: 'esp32',
boardType: 'esp32-devkit-c-v4',
boardFilter: 'esp32',
libraries: EPAPER_LIBS,
tags: ['epaper', 'e-ink', 'gxepd2', 'uc8179', 'gd7965', 'esp32', 'dashboard', '7.5'],
@ -359,7 +359,7 @@ void loop() {}
{ id: 'w-mosi', start: { componentId: 'esp32', pinName: '23' }, end: { componentId: 'epd-750', pinName: 'SDI' }, color: '#22aaff' },
{ id: 'w-sck', start: { componentId: 'esp32', pinName: '18' }, end: { componentId: 'epd-750', pinName: 'SCK' }, color: '#ffdd33' },
{ id: 'w-vcc', start: { componentId: 'esp32', pinName: '3V3' }, end: { componentId: 'epd-750', pinName: 'VCC' }, color: '#ff4444' },
{ id: 'w-gnd', start: { componentId: 'esp32', pinName: 'GND' }, end: { componentId: 'epd-750', pinName: 'GND' }, color: '#000000' },
{ id: 'w-gnd', start: { componentId: 'esp32', pinName: 'GND.1' }, end: { componentId: 'epd-750', pinName: 'GND' }, color: '#000000' },
],
};
@ -373,7 +373,7 @@ const tricolorEsp29: ExampleProject = {
'and 0x26 (Red) RAM commands.',
category: 'displays',
difficulty: 'intermediate',
boardType: 'esp32',
boardType: 'esp32-devkit-c-v4',
boardFilter: 'esp32',
libraries: EPAPER_LIBS,
tags: ['epaper', 'e-ink', 'gxepd2', 'ssd1680', '3c', 'tri-color', 'red', 'esp32'],
@ -443,7 +443,7 @@ void loop() { delay(1000); }
{ id: 'w-mosi', start: { componentId: 'esp32', pinName: '23' }, end: { componentId: 'epd-290-bwr', pinName: 'SDI' }, color: '#22aaff' },
{ id: 'w-sck', start: { componentId: 'esp32', pinName: '18' }, end: { componentId: 'epd-290-bwr', pinName: 'SCK' }, color: '#ffdd33' },
{ id: 'w-vcc', start: { componentId: 'esp32', pinName: '3V3' }, end: { componentId: 'epd-290-bwr', pinName: 'VCC' }, color: '#ff4444' },
{ id: 'w-gnd', start: { componentId: 'esp32', pinName: 'GND' }, end: { componentId: 'epd-290-bwr', pinName: 'GND' }, color: '#000000' },
{ id: 'w-gnd', start: { componentId: 'esp32', pinName: 'GND.1' }, end: { componentId: 'epd-290-bwr', pinName: 'GND' }, color: '#000000' },
],
};
@ -458,7 +458,7 @@ const acepEsp565: ExampleProject = {
'pulses BUSY for 150 ms.',
category: 'displays',
difficulty: 'advanced',
boardType: 'esp32',
boardType: 'esp32-devkit-c-v4',
boardFilter: 'esp32',
libraries: EPAPER_LIBS,
tags: ['epaper', 'e-ink', 'gxepd2', 'uc8159c', 'acep', '7-color', 'esp32', '5.65'],
@ -520,7 +520,7 @@ void loop() { delay(1000); }
{ id: 'w-mosi', start: { componentId: 'esp32', pinName: '23' }, end: { componentId: 'epd-565', pinName: 'SDI' }, color: '#22aaff' },
{ id: 'w-sck', start: { componentId: 'esp32', pinName: '18' }, end: { componentId: 'epd-565', pinName: 'SCK' }, color: '#ffdd33' },
{ id: 'w-vcc', start: { componentId: 'esp32', pinName: '3V3' }, end: { componentId: 'epd-565', pinName: 'VCC' }, color: '#ff4444' },
{ id: 'w-gnd', start: { componentId: 'esp32', pinName: 'GND' }, end: { componentId: 'epd-565', pinName: 'GND' }, color: '#000000' },
{ id: 'w-gnd', start: { componentId: 'esp32', pinName: 'GND.1' }, end: { componentId: 'epd-565', pinName: 'GND' }, color: '#000000' },
],
};