Tag dossier
Badge records tagged with USB, across China, Croatia, Germany, Mexico, United States.
Lithographed aluminum e-paper-style badge
A DEF CON 18 electronic badge built as polished hackable jewelry: lithographed aluminum, a low-power 128x32 Kent Displays cholesteric display, USB connectivity, role variants, and published badge-making materials.
USB-controlled sub-1 GHz RF badge
The ToorCon 14 badge was an open-source sub-1 GHz wireless-transceiver badge from Great Scott Gadgets, controlled over USB from a computer and shipped with atlas's RfCat firmware plus CC Bootloader.
ARM, 2.4 GHz, LCD, USB, and button badge
A source-backed Hackover 2013 badge record: the event blog described an assembled and flashed badge PCB for every attendee, with ARM processor, 2.4 GHz radio, 6.5 Kpx LCD, USB, and buttons.
HackRVA electronic badge with LEDs, IR, audio, and USB
The RVAsec 2013 badge was a HackRVA-built electronic conference badge documented by official RVAsec and HackRVA sources, with LEDs, infrared badge-to-badge play, a piezo speaker, USB support, and badge-game behavior tied to conference interaction.
Hand-built badge with USB reflashing and CTF challenge hooks
The RVA5sec 2016 badge is documented by HackRVA's official interview as a hand-built custom-firmware electronic badge with reused/improved hardware, standard USB reflashing, low-frequency serial-transmission experimentation, and CTF challenge hooks.
Flexible-PCB tree-game badge
A Grand Idea Studio badge for the first official international DEFCON edition, built as an artistic flexible-substrate PCB with 32 LEDs, USB connectivity, accelerometer input, role-color artwork variants, and a task-completion tree-lighting game.
Pandemic-era HackRVA firmware archive with LCD, IR, audio, USB, and apps
The RVAsec 2020 badge is seeded from HackRVA's public firmware repository. The source tree documents a real badge software target with LCD display code, buttons, IR packet handling, menus, badge apps, audio/image asset playback, LED control, USB bootloader tooling, and a small C-like interpreter.
RP2040 audio, microphone, LEDs, and EdgeImpulse badge
BugCON 2022's Electronic Cats badge repository documents an RP2040 electronic badge for BugCON 2022 CDMX with USB serial access, LEDs, microphone, buzzer or speaker, a small machine-learning trail through EdgeImpulse, Arduino Mbed programming notes, KiCad hardware files, and Blink/AudioWAV firmware examples.
NFC treasure-hunt and LED badge
The second electronic DORS/CLUC badge, built around NFC tag hunting, badge-to-badge interaction counters, LED-display modes, USB configuration and passthrough behavior, a simple game, open source files, and a public production all-nighter writeup.