Configuring LSC Smart Outdoor Flood Light with OpenBeken: Managing BK7231N Chipset and RGBWW LEDs

Hi! In the last months, I've flashed numerous devices with OpenBeken, all with great success. Unfortunately, there is one problem I keep running into for some of them.

In this example, I'll talk about the LSC Smart Outdoor Flood Light, sold at Action shops across Europe.



The light – which has the BK7231N chipset - was easy to flash using Tuya Cloudcutter.

It features RGB and Warm White LEDs (RGBWW). And this is where my issue lies.

I can't find a correct way to configure the light in OpenBeken.

The LEDs are connected like this:



RED = Pin 26 (PWM)
GREEN = Pin 24 (PWM)
BLUE = Pin 6 (PWM)
WARM WHITE = Pin 7 (PWM)

In this case, the Warm White is just a fixed color temperature, which is dimmable.

The RGB configuration works flawlessly, but there seems to be no way to control the Warm White channel separately.

I know about Flag 24, but that's not the way I expect the light to work. I don't want to create a cool white emulation. Instead, I expect the Warm White light to be controllable without the RGB lights.

In short: no color temperature, just brightness control.

Is there any way to get this done?

I appreciate all the help I can get!

I see, this must be the one of the rare cases where RGB + W mode is required. I will try to look into it. I must admit that I have flashed many, many devices with OBK but haven't encountered that kind of lamp yet.

I encountered the same with the LSC Smart Connect Outdoor Spotlights. They have the same LED configuration (RGB + Warm White).

By the way, have you tried to just set a fifth PWM as a dummy? And then use it as RGBCW device but keep using one temperature mode?

Out of all the configuration combinations that I've tested, I didn't try that.

That is indeed giving me the ability to control the warm white LEDs. The LED Temperature Slider now lets me control the brightness level of the white light. Thanks! 😄

It would be nice to have a correct slider though. Also for integration in Home Assistant.

@p.kaczmarek2, can you please add this device to the list for better support in the templates? Thanks.

I can make an entry but I don't even have a model number, do you have one, @alfakenzo ?
or a config extracted that way https://www.youtube.com/watch?v=WunlqIMAdgw&ab_channel=Elektrodacom

Yes, I have all you need. LSC Smart Connect 3200719 Outdoor Flood Light RGB+WW.
The JSON


and the Template I use and it works.

I have this light apart.

Disassembly was destructive in nature, so I don't recommend opening it up unless you have other plans (like I do).

The exact module used is the CB2L, the same one as in the outdoor spotlights formerly mentioned. I took those apart a year or so ago and posted a teardown on here.

Component-wise:
- CB2L module, flat on its back
- local step-down regulator for the logic control
- 24V input
- 2835 LED's
- AO3400 N-channel MOSFETs
- LED's:
- Warm white: 2 parallel strings of 7 in series
- Red: 6 in series
- Green: 6 in series
- Blue: 6 in series
- PWM lines:
- Warm white: PWM1 (P7)
- Red: PWM5 (P26)
- Green: PWM4 (P24)
- Blue: PWM0 (P6)

Hi all!

I picked up a few lights at Action a few weeks back, and they flashed easily. But I had some issues getting the light to register correctly in Home Assistant using the template from the teardowns database. (No light was created, only the telemetry.) It seems that enabling flag 24 to emulate a cool white channel does the trick, but this requires a slightly different channel order.

So, the final template that works for me is:

Hope it helps someone!

>>21322721

did you Cloudcutter flash? If not and you managed to take a backup of the Tuya factory firmware, please feel free to post it.

I flashed it using Cloudcutter indeed (what an amazing tool by the way), so no firmware backup sadly.

This thread already contains some great info. I'm trying to convert it to ESPHOME but having some trouble. I'm using the config below but am only getting a ON/OFF button and a brightness slider for (remarkably) cool white. No colors and no warm white. Am I missing something here?

The light does work as expected in HomeAssistant tho. Just not in the ESPHOME interface.