Nuit du Hack 2011 Badge
French electronic conference badge
A source-backed French electronic attendee badge from Nuit du Hack 2011, preserved through an attendee report, badge photos, and linked reverse-engineering/programming tutorials.
Tag dossier
Reverse Engineering
Badge records tagged with Reverse Engineering, across France, India, Singapore, Spain.
r2con 2017 Friends Badge
Limited electronic badge for r2con speakers and friends
A limited electronic badge made for r2con 2017 speakers and friends in Barcelona, documented by the official badge-manufacturing talk and first-hand reporting that says it showed project-status information such as build state, last commit, and GitHub stars.
DEF CON Singapore 2026 TISC ESP32 Trinket
CSIT C517 finalist BLE mesh challenge hardware
A source-backed TISC@DEF CON SG finals challenge artifact: CSIT's official C517 page documents the on-site TISC finals, and a finalist writeup says each of the top-50 finalists received an ESP32 hardware trinket running a customized BLE mesh chat protocol to reverse engineer.
Seasides 2026 Hardware Village Badge
Goa soldering-village badge with hidden challenge
A conservative Seasides 2026 Hardware Hacking Village badge record from official Seasides and HW101 pages documenting a drop-in soldering village where attendees could build a custom badge and pursue a hidden hardware/firmware challenge.