Thank you for your replyOutoftheBOTS_ wrote: ↑Fri May 15, 2020 8:22 pmIf your only going to be running 10 LEDs you can probably run them from the ESP32 5v pin but wouldn't run larger amounts (Ardunio power supply isn't any better than ESP32).
Do you also have a common ground to both the power supply and the ESP32???
I didn't find any 5V output of the esp32, I guess that you mean I could use the 3,3V output of esp32?
I did not link the GND of the esp32 with the arduino one, I tested it and nothing change.
I tested the apa102 led stripe with fastled on arduino and, I did not have that I wanted, but the led swith on, whereas that with esp32 and micropython_dotstar all led stay off...
I am sure that the problem is the interface between chair and keyboard, but I don't know where I missed