SiNE
EMW2013 LED and IR badge
A small Electromagnetic Wave badge with ATTiny44A, 20 location LEDs, IR receiver/transmitter, unique-ID beacon behavior, coin-cell power, and a ship-wide treasure hunt.
Tag dossier
LEDs
Badge records tagged with LEDs, across United Kingdom, United States.
AvengerCon VIII 8-8-8 Badge
First AvengerCon electronic scavenger-hunt badge
The AvengerCon VIII 8-8-8 badge was the conference's first electronic badge, documented by U.S. Army public-affairs coverage as a scavenger-hunt badge where attendees collected codes to light LEDs or hacked the badge to bypass the contest.