![]() I first became aware of the badge for the event last year when a functioning desktop canon called the #boombadge. There’s a pre-conference meetup called DEF CON Shoot where firearm enthusiasts meetup at a shooting range somewhere near Vegas. You can apparently summon Satan if you get enough badges together (I’m guessing 5 for the pentagram tie-in) and perform a séance. Unlocking puzzles activates new and increasingly impressive visualizations. They even have their own character set which is shown on the lanyard. The point of the badge is a puzzle described as “web crypto and stenography”. ![]() A PIC18F4520 drives the badge, with the help of 595 shift registers to manage the LEDs. The badge features an Atmel touch controller to read the capacitive touch inputs on the glyph-filled circle. There are LEDs and resistors in lines and arcs to create the bling, but look on the horn and bridge of the Baphomet’s nose and you’ll find really interesting placement choices. For instance, there is a light-dependent resistor that appears as a ring on the hand. One of the most striking features is that all of the components are placed to enhance the overall design, which is a beautiful bit of matte black solder mask, white silk screen, and gold plate. There were 300 of these badges built, and they were delivered in a VHS cassette case. The badge design, the puzzles within, social hype around it, and the accouterments that came with it made this is an amazing undertaking. ![]() The Hack for Satan badge is one of the biggest ‘full package’ offerings in #Badgelife.
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