4.2 E-Ink from Makerfab?

ESPHome
,
1

I got a 4.2" 3-color e-ink from Makerfab but fail to get it running with ESP-home.
The specs and price look quiet promising.
The product wiki has some info and a config for Arduino IDE.

My config gives me a initial picture and then stays flickering.
Any idea how to get it running? The other drivers dont work at all.

esphome:
  name: ${name}
  friendly_name: ${friendly_name}
  name_add_mac_suffix: false
  platformio_options:
    board_build.flash_mode: dio
    board_build.arduino.memory_type: qio_opi
    build_flags: "-DBOARD_HAS_PSRAM"
    board_upload.maximum_ram_size: 524288  

esp32:
# board: weesp32s3_120_16_8-qio_opi
  board: esp32-s3-devkitc-1
  flash_size: 16MB  
  framework:
    type: esp-idf
    version: recommended
    sdkconfig_options:
      CONFIG_ESP32S3_DEFAULT_CPU_FREQ_240: y
      CONFIG_ESP32S3_DATA_CACHE_64KB: y
      CONFIG_SPIRAM_FETCH_INSTRUCTIONS: y
      CONFIG_SPIRAM_RODATA: y

psram:
  speed: 80MHz
  mode: octal

spi:
  - id: spi_eink
    clk_pin: GPIO014
    mosi_pin: GPIO13
#    miso_pin: GPIO13
    interface: hardware

display:
  - platform: waveshare_epaper
    spi_id: spi_eink
    cs_pin: GPIO15
    busy_pin: GPIO09
    reset_pin: GPIO10
    dc_pin: GPIO11
    model: 4.20in-bV2-bwr
#    model: gdey042t81    
#    model: 4.20in    
#    full_update_every: 30
    reset_duration: 10ms
    update_interval: 5ms
2

This may be the cause of your flickering. It should be in the seconds range (you can even set it to never and update manually), not milliseconds…

3

changing the reset interval to 150ms and update to 60s did help :wink: