Check out the great work by UncleRus, Trombik and others at esp-idf-lib . You can either use the framebuffer way of addressing the individual leds (my personal preference) or push colors directly into the leds. Many of the FastLED functions are included in the library, no need to reinvent color ble...

Hi there, It might be best to explain to you what the project consists of in case you have any suggestions. I'm a drummer in two music bands and I play with a metronome in both. My idea is to create a device that I can take to concerts, where I can select the song we're going to play, have a headpho...