Power for the ring comes from the VIN pin, this one is connected to the 5V line of the USB connector with a SS12 diode inbetween. I found a lot of examples on the web where in small projects the power for the LEDs comes directly from the ESPs, and additional power source was mostly used for big project with multiple meters of LED strips, but I’m now still wondering if my setup fried the ESP board. The board also showed up as unavailable in HA and my router showed it as offline (no IP assigned), and therefore I also cannot connect to it via WiFi (anymore). When I then wanted to add an effect to the YAML, the esphome commandline wasn’t able to connect to the board via USB anymore after compiling. After setting up a 12-LED WS2812B ring with my DOIT Devkit V1 board, it worked perfectly fine for 15-20 minutes (including HA integration, changing colours and brightness, switching it on and off etc from the UI).
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