Hey, we’ve recorded another guide for you, this time for ceiling lamp, showing how to desolder CB2S (BK7231N) and flash it outside circuit, and then solder it back.
We’re flashing OBK there, so device can mimic Tasmota functionality (even with JSON support! Tele/cmnd/etc) and connect to HA or ioBroker.
Here’s a guide:
After that you can easily pair your device with Home Assistant via Discovery.
Here is our firmware Github:
Feel free to ask any questions, we’re here to help!