Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
The DEF CON 16 badge could transfer attendee-selected files from an SD card to another badge over infrared, creating a PDA-style social exchange mechanic.
Badge context
Joe Grand's Nuts & Volts article covering DEF CON 16 design goals, SD-card file transfer, IR, TV-B-Gone behavior, cost, and production.
Pre-event coverage documenting prototype caveats, SD-card advice, designer context, and public badge expectations.
Primary designer page with MC9S08JM60 hardware, infrared transfer, SD-card/FAT16 support, USB bootloader, role variants, documentation, contest, and official image-path context.
Grand Idea Studio slide source for role-color counts, production process, design goals, hardware, and firmware framing.
Source trail
Primary project source for MC9S08JM60 hardware, infrared transfer, SD-card/FAT16 support, USB bootloader, 8,500-badge production, role variants, contest links, and official page image paths.
Primary slide source for role-color counts, 8,500-piece production framing, hardware choices, and source/schematic release context.
Primary article source for DEF CON 16 design goals, Freescale platform, SD-card infrared file transfer, TV-B-Gone behavior, operating states, and production constraints.
Secondary pre-event source for SD-card use, prototype caveats, Joe Grand and Jeff Moss context, and public badge positioning.