[BK7231N/CBLC5] Mini Wi-Fi Curtain/2 Gangs switch module (with unsupported KP15052SP)

Hello!

Recently I've ordered a mini switch module from Aliexpress: Link



Unpacking:
I was expecting to see something usual, but it was a surprise..






After unpacking, I've realized that this switch is using BK7231N on CBLC5 module with KP15052SP I2C LED driver, which, unfortunately, is not supported in the current release :(

The flashing process was straightforward and was successfully done with UART and hid_download_py without any errors.

I've tried to import existing templates and to use KP15058 driver, but it looks like it's not compatible with KP15052SP and the scheme is different compared to KP15058.

KP15052SP scheme.



The full datasheet is available upon request on their website (Chinese):
http://www.kiwiinst.com/productinfo/1249744.html

Is it possible to make support for KP15052SP in future releases?
I need your assistance to make this switch fully operational.

Thank you!

Hello, the following chip is not a LED driver. It's a power supply controller, it has no digital interface. It can't be driven from MCU, and there is no need for that.

Please try to do the GPIO template extraction so we can know more about this device:
https://www.youtube.com/watch?v=WunlqIMAdgw&ab_channel=Elektrodacom

p.kaczmarek2 wrote:

Hello, the following chip is not an LED driver. It's a power supply controller, it has no digital interface. It can't be driven from an MCU, and there is no need for that.

Please try to do the GPIO template extraction so we can know more about this device:
https://www.youtube.com/watch?v=WunlqIMAdgw&ab_channel=Elektrodacom

I'm getting a "failed to extract keys" error message when I'm moving a 72Kb Tuya config .BIN file. I've tried it on two different PCs.

So it's a custom firmware device. You might want to check the traces on the PCB or use GPIO doctor from the Web App.