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.