Sputnik / OpenBeacon
CCCamp 2007 active RFID badge
A small active 2.4 GHz RFID badge/tag used with OpenBeacon base stations for real-time camp tracking and post-camp hardware experiments.
Tag dossier
2.4 GHz
Badge records tagged with 2.4 GHz, across Germany, United States.
ToorCon 13 Spectrum Analyzer Badge
2.4 GHz RF spectrum-analyzer badge
The ToorCon 13 badge was an open-source 2.4 GHz RF spectrum-analyzer badge from Great Scott Gadgets, with 13 LEDs representing the 13 Wi-Fi channels and public Project Ubertooth hardware and firmware archives under the `tc13badge` code name.
Hackover 2013 Badge
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.
GigaGeiger Badge (DEF CON 33)
Independent ESP32-S3 Wi-Fi monitoring and foxhunt badge sold for DEF CON 33
HackMy*'s maker storefront labels GigaGeiger a Wi-Fi badge for DEF CON 33 and shows a USD 120 price with a sold-out-since-August 6, 2025 state. The same listing describes a retro Geiger-counter-inspired device with a single rotary dial for 2.4 GHz channel monitoring, MAC-address foxhunting, and browser-based firmware flashing; it says the product shipped with a lanyard and batteries. Its linked public Penzz-HM repository publishes an MIT-licensed Arduino/C++ implementation for an ESP32-S3-WROOM, GC9A01 display, rotary input, Wi-Fi scanning, promiscuous-mode packet counting, RSSI tracking, and a local web updater, plus firmware binaries, Gerbers, and enclosure STL files. A separately published GigaGeiger PCB project on PCBWay is dated June 25, 2025, names Matt Wagner, provides Gerbers, and is marked CC BY-SA. These sources establish a real independent 2025 BadgeLife artifact and a public design trail, not official DEF CON issuance, admission, a completed event handoff, a complete electrical specification, universal radio/OTA safety, or a rights-cleared hero image.