This was my attempt at creating a smart Christmass tree decoration. I wanted to have a bunch of RGB LEDs that I could control remotely from my smart home automation system so I created this board using 11 x SK6812-EC20 RGB LEDs connected with an ESP32. The board can be flashed with an arduino sketch and have it flash various patterns in a standalone operating mode or you can flash it with esphome (or other similar platforms) and have it controlled from your smart home system.
More info about this project in Voltlog #344. This was available in a limitted edition in the Voltlog Tindie Store.