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 Roulette Badge
Maker-documented ATtiny85 Hardware Village CTF badge soldered in Goa
The official Seasides and HW101 pages establish a Goa Hardware Hacking Village where people soldered take-home badges and worked on a hidden hardware/firmware challenge. A public project-owner archive calls a concrete board the Seasides 2026 Roulette Badge, says that more than 300 participants assembled it live, and publishes its C firmware, schematic, and Gerbers. The archive makes this a source-backed maker-documented instance of the village badge, but the official event pages do not independently name the Roulette design or confirm that every village or conference badge used that exact final configuration.