Defcon is off to an incredibly slow start; It's already 2 hours behind because of safety inspections (not surprising). I wouldn't be too annoyed, but the first talk of the day is Joe Grand explaining the LED badges. They apparently made 6,055 of these LED badges. There is a PIC10F202 on the back and a switch to change between different flash modes. He even included solder pads to reprogram it. … [Read more...]