THOTCON 0x8 Badge
ATmega32u4 tesserHack maze badge
The THOTCON 0x8 badge was a Chicago electronic conference badge built around an ATmega32u4, four RGB NeoPixel LEDs, three potentiometers, micro USB, two CR2032 coin-cell holders, and tesserHack stock firmware for an 8x8x8 maze game.