That gave us barely more than two weeks to come up with an idea for a badge, design one, order all the parts, wait on a PCB order, and finally kit all the badges before lugging them out to DEF CON.

I was asked to design a badge for the 2016 event, and this is the first (well, the second) release. It is based on the PIC18LF24K50 and consists of a circle of LEDs which randomly displays pre ...