LED Tie Posted on 2016-04-26 by Tim Gremalm A video posted by Tim Gremalm (@timgremalm) on Apr 26, 2016 at 12:30pm PDT A LED tie for part occasions. Made out of a cople of WS2812 addressable LED strips and a NodeMCU (ESP8266). You can beat tap to music to get the colors to switch colors in time with the beat. A small USB powerpack/powerbank did fit in the tie. The tie still looks pretty stock.