Steren RGBWW Desk Lamp

Smart desk lamp with a sleek design, it has RGB and warm/cold white LEDs. it uses pwm to control each channel. You can flash it, you can use tuya cloud-cutter, or you can swap out the chip.

I attempted to flash the chip multiple times, but my FTDI adapter couldn’t provide enough current for a successful process. In the end, I followed Digiblur’s Tuya Cloudcutter guide, which is referenced in the ESPHome documentation for BK72xx, and that did the trick.

Device Details

• Model: SHOME-LAM

• Board: BK7231 (WB3L variant)

• Link:

  Lámpara LED Wi-Fi* RGB+W multicolor de 12 W

Images

Promotional image from website.

Unscrew the diffuser. The board is connected to the power source via a connector.

Pinout and Configuration

Internal circuit board showcasing the chipset.

GPIO Mapping

GPIO	Function	Description
P8	Red	RGB LED Red Control
P26	Blue	RGB LED Blue Control
P24	Green	RGB LED Green Control
P6	Warm White	White LED Control
P7	Cold White	White LED Control

Note

The lamp is enclosed in metal, which may affect Wi-Fi signal strength. Ensure it is close to the router or use a repeater if needed.

YAML Configuration

bk72xx:
  board: wb3l

output:
  - platform: libretiny_pwm
    id: red
    pin: P8
  - platform: libretiny_pwm
    id: blue
    pin: P26
  - platform: libretiny_pwm
    id: green
    pin: P24
  - platform: libretiny_pwm
    id: warm_white
    pin: P6
  - platform: libretiny_pwm
    id: cold_white
    pin: P7

light:
  - platform: rgbww
    name: "Light"
    id: rgb_light
    restore_mode: ALWAYS_OFF
    red: red
    green: green
    blue: blue
    warm_white: warm_white
    cold_white: cold_white
    cold_white_color_temperature: 6500 K
    warm_white_color_temperature: 2000 K
    color_interlock: True