My notes from Thotcon 0x0a:

Hacking Con Badges for Fun and Profit

• Given by an EE
• Badge hacking started with DC23, HHV.
• Turned his DC23 record-badge into an analog clock.
• AND!XOR's DC24 independent badge.
• Maple Mini STM32.
• Live spectrum analysis of 20-20KHz as an add-on.
• Mic, pre-amp, FFT running on the uc.
• Wired into the badge, rock-and-roll.
• Inspiration and OSINT - look at the badge when it's announced, think about it
• Get ideas
• PoC - if you don't have this, you're not going to have anything
• dev & debug
• DC25 - NRF52 - 503.party
• Blow up any images you can and start thinking …