Intense LED flash when connecting power to H801 controller

[MattiasC]

Operating environment/Installation (Hass.io/Docker/pip/etc.):

Home Assistant OS

ESP (ESP32/ESP8266, Board/Sonoff):

platform: ESP8266 board: esp01_1m

ESPHome version (latest production, beta, dev branch)

1.15.3

Affected component:

https://esphome.io/components/light/rgbww.html

Description of problem: When applying power to the controller all leds flash for a short time, like a camera flash.

Problem-relevant YAML-configuration entries:

# https://kvvhost.ru/2019/07/12/review-h801/
esphome:
  name: ---
  platform: ESP8266
  board: esp01_1m
  on_shutdown:
    then:
      - output.turn_off: output_blue
      - output.turn_off: output_green
      - output.turn_off: output_red
      - output.turn_off: output_white1
      - output.turn_off: output_white2

wifi:
  ssid: ---
  password: ---
  #manual_ip:
    # Set this to the IP of the ESP
    #static_ip: ---
    # Set this to the IP address of the router. Often ends with .1
    #gateway: ---
    # The subnet of the network. 255.255.255.0 works for most home networks.
    #subnet: ---

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

captive_portal:

# Enable logging
logger:

# Enable Home Assistant API
api:
  password: ---

ota:
  password: ---

sensor:
  - platform: wifi_signal
    name: ---
    update_interval: 60s

#
output:
  # Blue
  - platform: esp8266_pwm
    pin: 12
    max_power: 0.95
    frequency: 1000 Hz
    id: output_blue

  # Green
  - platform: esp8266_pwm
    pin: 13
    max_power: 0.95
    frequency: 1000 Hz
    id: output_green

  # Red
  - platform: esp8266_pwm
    pin: 15
    max_power: 0.95
    frequency: 1000 Hz
    id: output_red

  # Cold white
  - platform: esp8266_pwm
    pin: 14
    max_power: 0.95
    frequency: 1000 Hz
    id: output_coldwhite

  # Warm white
  - platform: esp8266_pwm
    pin: 4
    max_power: 0.95
    frequency: 1000 Hz
    id: output_warmwhite

light:
- platform: rgbww
  name: "Golvlampan i kontoret"
  red: output_red
  green: output_green
  blue: output_blue
  cold_white: output_coldwhite
  warm_white: output_warmwhite
  cold_white_color_temperature: 6536 K
  warm_white_color_temperature: 2000 K

Logs (if applicable):

N/A

Additional information and things you've tried: This is the controller: https://translate.google.com/translate?sl=auto&tl=en&u=https://kvvhost.ru/2019/07/12/review-h801/

I have tried using on_boot to set all outputs to 0 as early as possible by changing the priority, but it made no difference, I suspect I can't get it to execute early enough.

I found this issue which was reported in Tasmota: https://github.com/arendst/Tasmota/issues/649 which handles the same problem.

[stale[bot]]

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.

[MattiasC]

Recompiled with ESPHome 1.18.0 and the issue has been resolved.