Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
The badge is documented as updating the schedule, showing the venue map, and reminding attendees about talks and workshops.
Badge context
Server-side enrollment, nickname, alcohol-sensor, and schedule JSON scripts preserved with the badge source.
Community link associated with Jean-George from the BruCON retrospective.
Event source for badge purpose, designer credit, soldering lore, and GitHub release.
Repository README links the tagged firmware version that was installed on the conference badges.
KiCad project, schematic/PCB files, and generated Gerbers for the badge hardware.
Public badge firmware/design repository linked by the event retrospective.
Source trail
Primary source for badge utility, alcohol sensor, soldering lore, and credit.
Tagged firmware release identified by the repository README as the version on the con badge.
Public ESP-IDF firmware, KiCad/PCB/Gerber, menu, schedule, LCD, ADC, Wi-Fi, and server source repository for the badge.
Source tree for the badge-side backend workflow, including enrollment and Sched-derived schedule endpoints.