DEFCON 20 is currently underway in Las Vegas and this year the electronic hackable badge is back! This year the badge is based on the Parallax Propeller P8X32A 32-bit multicore processor. “The badge features an infrared LED and receiver for badge-to-badge communication, a bank of eight LEDs for visual feedback and a USB circuit for data access and programming. Each attendee receives two PS2 adapters and a VGA connector so they can stop by DEFCON’s Hardware Hacking Village to turn their badge into a small computer system. Three AAA batteries can power the badge for the entire convention.”

For more details and updated badge hacktips, visit the Parallax Forum. Here’s a link to the video of the Parallax badge production line.