Wrong driver for waveshare e-ink displays

SO5HMI commented 10 months ago

The problem

esp32: board: esp32dev framework: type: arduino

pi: clk_pin: 13 mosi_pin: 14

display:

platform: waveshare_epaper id: eink cs_pin: 15 dc_pin: 27 busy_pin: 25 reset_pin: 26 model: 4.2in update_interval: 10s lambda: |- it.print(0, 0, id(font1), "Hello World!");

I use original waveshare esp32 e-ink driver board with no other sensors connected

In this config the display doesnt change, but if i change the model to different i see Hello World but in the corner and the not used part of the display has w/b random noise.

working display models: 1.54in - display is changing but, screen is black 1.54inv2 - works part of display according to resolution 2.90in- display is changing but, screen is black 2.90inv2 - works part of display according to resolution 4.2in - not working 4.2in-bv2 - not working 5.83in - not working 5.83inv2 - not working 7.50in - not working 7.50in-bV2 - not working 7.50inV2 - not working

i used this display a half year a go and its working great.

Which version of ESPHome has the issue?

2023.12.9

What type of installation are you using?

Home Assistant Add-on

Which version of Home Assistant has the issue?

core 2024.1.6

What platform are you using?

ESP32

Board

waveshare E-Paper ESP32 Driver Board

Component causing the issue

SPI,

Example YAML snippet

esphome:
  name: panel-salon
  friendly_name: Panel Salon

esp32:
  board: esp32dev
  framework:
    type: arduino

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:

ota:

wifi:

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:

captive_portal:

#i2c:
#  sda: 21
# scl: 22
#  scan: true
#  id: bus_a

spi:
  clk_pin: 13
  mosi_pin: 14

font:
  - file: 'config/fonts/liberation/LiberationSansNarrow-Bold.ttf'
    id: font1
    size: 20 

#sensor:
#  - platform: bme280
#    temperature:
#      name: "Salon temperatura"
#      oversampling: 16x
#      accuracy_decimals: 1
#    pressure:
#      name: "Salon cisnienie"
#      accuracy_decimals: 1
#    humidity:
#      name: "Salon wilgotnosc"
#      accuracy_decimals: 1
#    address: 0x76
#    update_interval: 60s

#pn532_i2c:
 # update_interval: 1s

display:
  - platform: waveshare_epaper
    id: eink
    cs_pin: 15
    dc_pin: 27
    busy_pin: 25
    reset_pin: 26
    model: 1.54inv2
    update_interval: 10s
    lambda: |-
      it.print(0, 0, id(font1), "1.54inv2");

Anything in the logs that might be useful for us?

No response

Additional information

No response

MrMDavidson commented 9 months ago

Hey @SO5HMI see also #5369. I've got a PR that seems to fix the issue for my device. Would be keen to have more people test it.

SO5HMI commented 9 months ago

Hi @MrMDavidson, thank you. I have tried this solution and ... didn't work for me. Screen is living — the refreshing (fill rectangle is working), but i don't get any next lambda drawings. The screen is black.

MrMDavidson commented 9 months ago

Can you paste your config?

SO5HMI commented 9 months ago

Yes, this is my config. I try to run display, there is no other code except beginning (board, wifi etc.)

captive_portal:

external_components:

source: github://pr#6209 components: [ waveshare_epaper ]

font:

file: 'config/fonts/liberation/LiberationSansNarrow-Bold.ttf' id: font1 size: 10

spi: clk_pin: 13 mosi_pin: 14

display:

platform: waveshare_epaper cs_pin: 15 dc_pin: 27 busy_pin: 25 reset_pin: 26 model: 4.20in-v2 full_update_every: 10 reset_duration: 2ms pages:
- id: paint_black lambda: |- const auto height = it.get_height(); const auto width = it.get_width();
  
  it.filled_rectangle(0, 0, width, height, COLOR_ON);
- id: paint_white lambda: |- const auto height = it.get_height(); const auto width = it.get_width();
  
  it.filled_rectangle(0, 0, width, height, COLOR_OFF);
- id: clear lambda: |- it.clear();
- id: real_page_im_drawing it.print(10, 50, id(font1), "Hello World!");

MrMDavidson commented 9 months ago

Ah, I'm not seeing any page change code. In my setup I'm navigating through the pages in response to a button press with display.page.show_next. if you don't have a physical button you could use a timer or something. Alternatively try just getting rid of the first 3 pages; they're just there to force some cleanup of the display.

github-actions[bot] commented 5 months ago

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

GraffJosh commented 5 months ago

I'm just going to poke this issue to unStale it, because I'm definitely having trouble with the esp32 Driver Board and the 4.2 display (I think I have the version 1: WFT0420CZ15)

I'm not getting any update on the display with the current waveshare epaper platform:

spi:
  id: epaper_spi
  clk_pin: 13
  mosi_pin: 14
  miso_pin: 19

display:
  - platform: waveshare_epaper
    spi_id: epaper_spi
    cs_pin: 15
    dc_pin: 27
    busy_pin: 25
    reset_pin: 26
    model: 4.20in
    update_interval: 30s
    lambda: |-
      it.print(0, 0, id(font1), "Hello World!");

esphome / issues