I bought one of these boards a few years back, for controlling an RGB LED strip. I couldn’t get it to work back then, and I didn’t get any luckier, trying again in the past weeks.
My intention was to simply add it to ESP Home; turns out that the specific chip (ESP32-C3) is not well supported there.
I tried several methods: ESP Home flasher, ESPtool, and the web utility, but I always got a bootloop, at best. Sick of it, I wrote a firmware for controlling the device via simple web commands, which can be issued by Home Assistant.
Basically, I can now control the device with a specific GET request, such as 192.168.1.66/red, which turns on the LED strip with color red.
Finding a solution for controlling such a device took an unreasonable amount of time, but it works.
Here’s the repository. There’s also a video guide.
I hope it can be useful to someone.