Tag dossier
Badge records tagged with Chaos Communication Congress, across Germany.
Unofficial SR-latch PCB badge for Labitat
An unofficial Labitat indie badge for 35C3 using the congress artwork theme, a simple flip-flop memory circuit, reverse-mount LEDs, a two-AA battery holder, and an optional power-only Shitty Add-On footprint.
Bring-your-own-controller WS2812B LED badge
An unofficial 36C3 badge kit made as a bring-your-own-controller blinky platform with a PCB, eight WS2812B addressable LEDs, eight 100 nF capacitors, lanyard, prototyping area, and controller examples using an Adafruit Feather M4 Express with CircuitPython.
Assembly-created digital achievement badges
The 37C3 Hub archived a digital badge system where assemblies could create badges that visitors might find, redeem, and display during the Hamburg Congress.
Expanded assembly-created Hub badge system
The 38C3 Hub archived an expanded digital badge system where assemblies created discoverable event badges for visitors, grouped into categories such as General, Exploration, and Help.
Open-hardware ESP32-S3 / TROPIC01 assembly badge and devboard
The Critical Decentralization Cluster's CDC Badge was presented as an electronic conference badge and development board at the completed 39th Chaos Communication Congress. The source-backed open-hardware platform combines an ESP32-S3, TROPIC01 secure element, front-lit e-paper display, twelve-button keypad, LiPo power path, and expansion ports, while public sources do not establish a conference-wide or admission-badge allocation.
Modular cyberpunk watch-style badge
An electronic badge created for 39C3 as a modular, solderable watch-style device. The project was designed to be reconfigurable with interchangeable daughter boards (called shards) for different use cases.
Assembly-created Hub achievement badges
The 39C3 info pages documented a Hub badge system where participants could collect assembly-created digital badges via redeem tokens, profile assignment, QR codes, and challenge or visit workflows.