Tag dossier
Badge records tagged with Badge Challenge, across New Zealand, Singapore, Taiwan, United Kingdom, United States.
Christchurch identity tag with source-backed badge-challenge context
CHCon 2018's official site documents identification tags/badges as part of the event materials and says CTF, badge, and locksport challenges would run throughout the main event.
Tymkrs electronic text-adventure badge
A Tymkrs / Toymakers official DEF CON 26 electronic badge with a PIC32MM0256GPM controller, reverse-mounted LEDs, capacitive controls, four-AA battery stack, USB serial interface, badge-to-badge connector, add-on header, and a retro text-adventure badge challenge.
Taiwan-shaped ARM TrustZone challenge badge
An official HITCON CMT electronic board badge shaped around Taiwan, combining collectable conference identity, 24 LED unlock states, sponsor booth challenges, a snake warm-up, and ARM TrustZone exploitation stages.
STM32 and iCE40 Enigma-machine badge with linked-ring challenge
The SAINTCON 2019 Enigma Badge was a two-board electronic conference badge shaped as a segment of an Enigma rotor, combining a curved RGB LED matrix, lampboard LEDs, 26 buttons, plugboard wiring, minibadge-holder support, and badge-to-badge connectors for a cooperative ring challenge.
RP2040 New Normal macro-pad badge
An MK Factor official DEF CON 29 electronic badge built around Raspberry Pi's RP2040, a 1.8-inch LCD, six-button D-pad surface, SAO connectors, USB-C, speaker, coin-cell plus USB power behavior, UF2 firmware updates, HID macro-pad mode, and a New Normal challenge path.
First sticker-backed Kākācon puzzle trail
The organizer walkthrough for Kākācon 2021 documents the first Kākācon badge challenge, with the entry point printed on the backing paper of a Pepper Raccoon-designed sticker.
MK Factor musical keyboard badge
An MK Factor official DEF CON 30 musical badge with Raspberry Pi Pico/RP2040-class hardware, a playable keyboard, display, speaker, audio input/output behavior, boot-mode and mass-storage update paths, and a music-and-pop-culture badge challenge spread across nine badge variants.
Second sticker-backed Kākācon puzzle trail
The organizer walkthrough for Kākācon 2022 documents the second Kākācon badge challenge, again using the back of the event sticker as the puzzle entry point.
RP2350 handheld-game badge
An official DEF CON 32 electronic badge built around Raspberry Pi RP2350 silicon, a handheld-game-style interface, LEDs, firmware archives, and a DEF CON 32 badge game whose GB Studio project files were published after the event.
Singapore dual-screen Octopus badge
Off-By-One Conference 2024 used an Octopus-themed hardware badge with ESP32-S3 and ATmega328P controllers, dual 128x128 GC9A01 round LCDs, IR, WS2812 LEDs, buttons, a user-flashable MicroPython challenge surface, and six published challenge flags.
Maker-published one-off ESP32 badge-challenge device
A source-bounded independent BSides Peoria 2025 challenge-badge dossier. Technet8394's event-period public HackTheBadge README calls the work "My ESP32 code for the BSides Peoria Badge Challenge 2025." Its later source release documents an ESP32, a 240×320 ILI9341 TFT panel, two batteries, and wiring. BSides Peoria's official 2025 announcement establishes the October 25 Bradley University event, and its 2026 organizer retrospective says the prior edition drew nearly 350 people and had electronic badges. No reviewed organizer source links this specific maker project to a main attendee badge, official issuance, or completed handoff, so the catalogue keeps it as an independent event-associated challenge device.
ESP32-C3 pukeko badge with OLED, RGB LEDs, Rust VM, and Minecraft server
CHCon 2025's attendee badge was a custom circuit-board badge with an ESP32-C3, SSD1306 128x64 OLED, 24 WS2812 RGB LEDs, USB Serial JTAG shell access, bare-metal Rust firmware, a stack-based pattern VM, and a Minecraft 1.21.4 challenge server.
Layered-lens physical badge
An official DEF CON 33 non-electronic physical badge by Mar Williams, built around layered art, 3D image interactions, lenses, clue spotting around the con, and an Arts & Entertainment booth badge challenge.
Admission badge with a web-puzzle companion; electronics undocumented
BSides Roanoke 2026's organizer-operated General Admission listing explicitly included a badge. A separate ShenLabs website declares itself a work of fiction created for the BSides Roanoke 2026 badge challenge. Together they support an admission-badge and web-puzzle record, but do not identify a physical link, electronics, or an embedded challenge mechanism.
Official Tampa badge/lanyard challenge and Uber Badge award trail
BSides Tampa 2026 is represented here by official attendee-badge and badge-challenge sources: the current FAQ says every participant gets a badge and lanyard, the badge-challenge page tells attendees that their badge is part of the puzzle, and the Uber Badge page records the lifetime-admission award path for badge-challenge winners.
Planned interactive hackable-badge competition for London
CyberThreat's official 2026 site and SANS registration page advertise an interactive hackable-badge challenge and a Hackable Badge Competition for the November London event. They establish a planned 2026 badge activity, not a released physical or electronic badge specification, attendee-wide issue, or completed handoff.
Independent ATtiny1614 DEF CON 34 badge-challenge fuzzer SAO
NilbinSec's public DC34 Main Badge Fuzzer SAO repository documents a standalone SAO designed to exercise interfaces on the official DEF CON 34 Human badge using information published before the conference. Its README describes three initial modes: GPIO1/GPIO2 stimulation on the left SAO port, an open-drain CPU wake assertion on GPIO4 of the right port, and an I²C-address listening sweep. The repository provides a KiCad schematic, BOM CSV, PCB archive, C firmware, and compiled hex/ELF files. The README explicitly warns that Mode 1 may harm the main badge and says a convention reflash might follow. This is source-backed pre-event independent challenge hardware, not proof of a finished run, sale, giveaway, pickup, compatibility with a final main-badge revision, authorization to probe another badge, official DEF CON issuance or admission, a reusable-image grant, or an explicit software/hardware licence.