Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
Badges communicated over infrared and could report encountered badge identities through a serial terminal, turning attendee movement and mingling into puzzle state.
Badge context
Contemporary article documenting Ryan Clarke's design goals, embedded game, cryptography, badge variants, IR interactions, free/open software, VGA expansion, and secret-society story.
Official DEF CON source for July 26-29, 2012 Rio Hotel event context, badge firmware notice, conference DVD material, and badge-contest writeup links.
Primary manufacturer source for Propeller P8X32A hardware, IR, LEDs, USB, attendee-role variants, firmware downloads, schematic, VGA/PS2 examples, and designer/code credits.
Wikimedia Commons source for Sephiroth storm's CC BY-SA 4.0 documentary photo containing the DEF CON 20 Human badge among multiple DEF CON artifacts.
InfoconDB metadata for the DEF CON 20 badge talk, Jeff Moss presenter credit, and Ryan Clarke / LosT badge-designer credit.
Source trail
Official event source for dates, venue, badge firmware availability, conference DVD badge materials, and badge-contest writeup links.
Talk metadata source for DEF CON 20 badge presentation context and Jeff Moss / Ryan Clarke presenter attribution.
Primary manufacturer source for Propeller P8X32A, IR badge communication, LEDs, USB, role variants, Human badge shapes, firmware artifacts, VGA/PS2 expansion, and named contributors.
Contemporary source for Ryan Clarke design context, embedded game, crypto/puzzle goals, badge-type roles, IR interactions, programming-language support, VGA expansion, and secret-society lore.
CC BY-SA 4.0 documentary photo source by Sephiroth storm showing multiple DEF CON badges, including the DEF CON 20 Human badge; used for image provenance, not hardware specification.