OpenBeken on AmazeFun Ceiling Lamp: Separate WWCW and RGB Control in Home Assistant

I successfully flashed the following "AmazeFun" ceiling lamp with OpenBeken:
https://www.amazon.de/dp/B0DYVB74BF

The lamp has bright cold and warm white leds on the bottom and an additional addressable RGB led strip on top.

It uses the LN882H on a module called "WL2H-U": https://developer.tuya.com/en/docs/iot/WL2H-U-Module-Datasheet

Flashing using UART was straight forward and using trial and error I found the correct Pins:
- P10: ColdWhite PWM
- P11 WarmWhite PWM
- P6 LED Strip (SM16703P_DIN)

The only problem I have is that I'm not able to get White and RGB to work at the same time. What I want is two separate light entities in Home Assistant: The main ceiling lamp with WW/CW control and another one that controls only the RGB strip. Both with individual on/off and brightness control.

Is that not possible with OpenBeken?

Btw, the vendor app (Smart Life) does support using both (White and RGB) at the same time.

AI: Could you share your current OpenBeken configuration or template settings for this lamp, especially how you have the pins and light components set up?

AI: Which version of the OpenBeken firmware are you running on the lamp?
Built on Mar 1 2026 08:55:05 version 1.18.268

it seems like some development is needed to make SM16703P driver aware of and somehow collaborate with PWM channels. related thread: https://www.elektroda.com/rtvforum/topic4162583.html

Added after 7 [hours] 33 [minutes]:

try this? https://github.com/openshwprojects/OpenBK7231T_App/pull/1980
how does this behave?

@p.kaczmarek2
Is there an OBK analogue for esphome color_interlock:false?
Could help in this case, but it would still be one light entity, instead of 2 separate ones.

Warm white pwm should be assigned to channel 4, cold - to 3.

We don't have this yet, but it's planned. Would you like to help with that? Currently LED driver works in separate modes for RGB and CW, altough there is some old RGBCW codepath. There is no support for separate dimmers for RGB and CW and it's up to discussion how to implement it.

I think first we need a good tests coverage so we are sure that we won't break any existing features.