Trouble with an sm2135 / smart bulb. No LEDs are turning on. Anwio A19

ESPHome
, ,
1

I am now configuring Anwio A19 bulbs which have an sm2135 led driver. I can’t seem to figure out the correct pins for clock+data, despite knowing that the bulbs have a wb3l board.

These are bulbs from Amazon that I flashed using tuya-cloudcutter (tuya v2.9.16). After not getting anywhere with the configuration I cracked one open to confirm the board is a wl3b and it has an sm2135EH chip. I can share pictures, if requested.

Initially, I tried using pwm, but no leds turned on whatsoever (this was before I figured out there was an sm2135 chip).

Here are the sm2135 configs I have tried:

# 1
sm2135:
  data_pin: P16
  clock_pin: P14
  separate_modes: false
# 2
sm2135:
  data_pin: P21
  clock_pin: P20
  separate_modes: false
# 3
sm2135:
  data_pin: P1
  clock_pin: P0
  separate_modes: false

This is the output and light config:

output:
  - platform: sm2135
    id: output_red
    channel: 0
    # max_power: 0.8
  - platform: sm2135
    id: output_green
    channel: 1
    # max_power: 0.8
  - platform: sm2135
    id: output_blue
    channel: 2
    # max_power: 0.8
  - platform: sm2135
    id: output_white_brightness
    channel: 3
    # max_power: 0.8
  - platform: sm2135
    id: output_white_temp
    channel: 4
    # max_power: 0.8

light:
  - platform: rgbct
    name: Light
    id: ${device}
    color_interlock: True
    red: output_red
    green: output_green
    blue: output_blue
    color_temperature: output_white_temp
    white_brightness: output_white_brightness
    cold_white_color_temperature: 6200 K
    warm_white_color_temperature: 2000 K

Additionally I’ve tried specifying the current for the rgb and white with no luck. I didn’t try it will all pin combinations, to be fair.

How can I figure out for certain which pins to use? Anything else I could try?

Thanks for any help!