Blinking when and after transitioning

iBobik commented 10 months ago

The problem

My CT light blinks like on the video. A lot while transitioning, less after it. Mostly only brightness change.

Was not significant with PWM frequency about 8 kHz, very significant with 40 kHz.

With version 2023.8.3 it was more signifiant, also color temperature was changing in blinks.

Which version of ESPHome has the issue?

2023.10.0-dev, Docker image e61ccdc9d9ee

What type of installation are you using?

Docker

Which version of Home Assistant has the issue?

No response

What platform are you using?

ESP8266

Board

Shelly RGBW2, H801

Component causing the issue

light, cwww, esp8266_pwm

Example YAML snippet

light:
  - platform: cwww
    id: light_1
    name: $human_name
    cold_white: output_blue
    warm_white: output_red
    cold_white_color_temperature: 6500 K
    warm_white_color_temperature: 2400 K
    constant_brightness: true
    restore_mode: ALWAYS_OFF
    default_transition_length: 100ms

output:
  - platform: esp8266_pwm
    pin: GPIO15
    frequency: 40000 Hz
    max_power: 0.8
    id: output_red

  - platform: esp8266_pwm
    pin: GPIO12
    frequency: 40000 Hz
    max_power: 0.8
    id: output_blue

Anything in the logs that might be useful for us?

Video: https://www.dropbox.com/scl/fi/yeth1vpuvf16l1r7cg3jr/esphome-e61ccdc9d9ee.mov?rlkey=ctpt1w59n2iwiy25175dd7mlj&dl=0

Additional information

Transitions are send from Adaptive lightning in HASS.

bkaufx commented 10 months ago

40khz is pretty extreme for esp8266. You probably need to keep it at 1000hz or less.

iBobik commented 10 months ago

40khz is pretty extreme for esp8266. You probably need to keep it at 1000hz or less.

I read examples with even 100 kHz. Also Meanwell power sources does not recommend such slow PWM because it beeps.

github-actions[bot] commented 6 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.

iBobik commented 6 months ago

Just updated to ESPHome version 2023.12.8 and issue is still there with 12 kHz, but not with 8khz (which is not useable with Meanwell power sources anyway).

esphome / issues