CCCamp 1999 Pass
Early Chaos Communication Camp identity artifact
A conservative identity-pass record for the first Chaos Communication Camp, before public sources document an official electronic camp badge.
Country dossier
Germany
Worldwide badge coverage for Germany, grouped into seeded badges, event editions, add-ons, operational issues, resources, and evidence sources.
Seeded artifacts
Badges
CCCamp 2003 Pass
Pre-Sputnik Chaos Communication Camp identity artifact
A source-conservative record for CCCamp 2003 as a pre-electronic-badge identity/pass artifact in the camp lineage.
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.
Easterhegg 2010 eHaserl
ATmega88 USB-bootloader rabbit badge
A source-backed record for the eHaserl, the Easterhegg 2010 surprise badge from the Munich Chaos Computer Club, with official assembly notes, flashing instructions, errata, and a badge talk.
r0ket
CCCamp 2011 electronic badge
A shiny electronic nametag and full-featured microcontroller development board that established the long-lived CCC Camp badge tradition rad1o later built on.
TROOPERS11 Nixie Badge
Nixie-tube hacker conference badge
A source-backed early TROOPERS electronic badge built around a glowing nixie-tube digit, a programming station for badge scores, a Cat-5 LANyard switch, and hidden capacitive-touch and pad-field hack surfaces.
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.
rad1o
CCCamp 2015 SDR badge
A HackRF-inspired software-defined radio badge that let campers receive, transmit, inspect spectrum, flash evolving firmware, solder RF add-ons, and keep hacking long after camp.
GPN17 Badge
ESP8266 GulaschPushNotifier badge
An Entropia-produced Gulaschprogrammiernacht 17 badge built around ESP8266, a 128x128 LCD, 18650 power, sensors, WS2813 LEDs, IR, a ROM store, and Hack-the-Badge camp challenges.
35C3 Labitat Indie Badge
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.
card10
CCCamp 2019 wearable sensor badge
A wrist-worn CCC Camp badge focused on sensing, health-style signals, BLE, and a Python-friendly app ecosystem.
TROOPERS19 Badge
ESP32 e-paper keyboard badge
A WiFi-connected MicroPython badge for TROOPERS19 with ESP32-WROVER, 2.9 inch e-paper display, full QWERTY keyboard, joystick, USB-C charging/flashing, LEDs, accelerometer, and Shitty Addon support.
Unofficial 36C3 Badge
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.
GPN20 Laminated Identity Badge
On-site printed and laminated attendee badge
A source-backed non-electronic GPN20 attendee-badge record anchored by the Entropia wiki workflow for printing and laminating badges at the infodesk.
HiP Berlin 2022 Badge
ESP32-C3 electronic badge for Hacking in Parallel
The Hacking in Parallel Berlin attendee badge was an ESP32-C3 electronic badge with RGB LEDs, USB-C Serial/JTAG, battery charging, NFC/I2C storage, SAO/I2C expansion, buttons, and RIOT OS board support.
TROOPERS22 Badge
Badge.Team-powered conference badge record
A conservative TROOPERS22 badge record anchored by Badge.Team's public PID/code entry for Troopers 2022 badges and the official TROOPERS22 event context.
37C3 Hub Digital Badges
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.
flow3r
CCCamp 2023 music and light badge
A petal-shaped electronic instrument where touch and gestures become sound and light.
Hackaday Berlin 2023 Voja4 Badge
Berlin-reskinned down-to-the-metal computer trainer
Hackaday Berlin 2023 gave European attendees a Berlin-reskinned Voja Antonic Voja4 badge: a compatible revision of the 2022 Supercon down-to-the-metal computer trainer and retrocomputer, with public event sources tying it to the March 25-26 MotionLab.Berlin gathering and Saturday badge-hacking ceremony.
TROOPERS23 Badge
Badge.Team retro-adventure conference badge
A Badge.Team-powered TROOPERS23 electronic badge with a public retrospective PDF, open hardware repository, firmware repository, and companion SAO hardware repository.
38C3 Hub Digital Badges
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.
Easterhegg 2024 RCA Badge
Rabbit Chaos Adventure badge
A source-backed Easterhegg 2024 badge record for the Rabbit Chaos Adventure: the event wiki points to challenges on campus, laptop, and badge, while the public repository preserves RCA badge files, schematics, Gerbers, parts exports, media, and printable add-ons.
Hackaday Europe 2024 Vectorscope Badge
Berlin reuse of the RP2040 analog vectorscope badge
Hackaday Europe 2024 in Berlin reused the 2023 Hackaday Supercon Vectorscope badge: an RP2040/MicroPython analog playground with a round IPS display, ADC/DAC signal path, front controls, joystick, prototyping space, and badge-hack ceremony.
39C3 Critical Decentralization Cluster Badge
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.
39C3 Cyberwatch Badge
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.
39C3 Hub Digital Badges
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.
GPN23 Identity Badge
Printed attendee badge, lanyard, and safeR badge workflow
A source-backed non-electronic GPN23 badge record for the printed attendee badges and lanyard workflow documented by Entropia's FAQ and badge how-to.
Hackaday Europe 2025 SAO Badge
Berlin reuse of the Supercon 8 SAO badge with revamped firmware
Hackaday Europe 2025 reused the Supercon 8 Simple Add-On badge concept in Berlin: an SAO-focused badge with I2C/GPIO exposure, MicroPython lineage, revamped Europe firmware, Supercon contest-winner add-ons, and badge-hacking ceremony context.
Events
Camp and Event Editions
Chaos Communication Camp 1999
The first Chaos Communication Camp belongs in the lineage as an early outdoor camp identity/pass era before public electronic badge records.
Chaos Communication Camp 2003
The second Chaos Communication Camp sits between the early pass era and the later Sputnik/OpenBeacon infrastructure badge.
Chaos Communication Camp 2007
The camp where Sputnik/OpenBeacon active RFID tags turned attendance itself into a 2.4 GHz tracking and experimentation surface.
Easterhegg 2010
The Munich Easterhegg edition whose eHaserl surprise badge was documented through assembly instructions, flashing notes, alternative software, and a public badge talk.
Chaos Communication Camp 2011
The camp where r0ket introduced many attendees to the idea of a deeply hackable electronic camp badge.
TROOPERS11
A German IT-security conference whose attendee badge used a nixie tube, score programmer, Cat-5 LANyard switch, capacitive touch secret, and hackable pad fields.
Hackover 2013
The second Hackover edition, whose ticket included an assembled and flashed badge PCB with ARM processor, 2.4 GHz radio, LCD, USB, and buttons.
Chaos Communication Camp 2015
The camp where rad1o turned the official badge into a serious SDR platform.
Gulaschprogrammiernacht 17
Entropia's 2017 Karlsruhe hackathon and conference, where the GPN17 Badge doubled as a GulaschPushNotifier, ROM-store device, and Hack-the-Badge target.
35th Chaos Communication Congress
The 2018 Chaos Communication Congress in Leipzig, where Thomas Flummer produced an unofficial Labitat indie badge around the 35C3 Refreshing Memories visual theme.
36th Chaos Communication Congress
The 2019 Chaos Communication Congress in Leipzig, where Thomas Flummer produced an unofficial bring-your-own-controller LED badge kit for hallway badgelife hacking.
Chaos Communication Camp 2019
The edition whose card10 badge explored wearable sensing and app distribution.
TROOPERS19
A German IT-security conference with a public ESP32 e-paper keyboard badge hardware writeup, KiCad files, and Shitty Addon ecosystem.
Gulaschprogrammiernacht 20
Entropia's 2022 Karlsruhe edition whose public wiki documents on-site printed and laminated attendee badges plus badge-issue queue feedback.
Hacking in Parallel Berlin 2022
The December 27-30, 2022 decentralized Berlin year-end hacker event whose attendees received an electronic HiP badge and whose schedule later included a badge-hacking workshop.
TROOPERS22
A German TROOPERS conference edition whose public Badge.Team PID record names Troopers 2022 badges as using the Badge.Team platform.
37th Chaos Communication Congress
The December 27-30, 2023 Hamburg Chaos Communication Congress whose official Hub archived an assembly-created digital badge system, distinct from a physical or electronic attendee badge.
Chaos Communication Camp 2023
The flow3r badge shifted the camp badge toward music, touch, light, and collaborative art.
Hackaday Berlin 2023
The March 25-26, 2023 Berlin Hackaday conference whose official preview offered attendees a Berlin-reskinned Voja4 down-to-the-metal computer trainer badge and a Saturday-night badge-hacking ceremony.
TROOPERS23
A German TROOPERS conference edition with a Badge.Team-powered electronic badge documented through the official badge retrospective, public hardware repository, firmware repository, and SAO hardware repository.
38th Chaos Communication Congress
The December 27-30, 2024 Hamburg Chaos Communication Congress whose official Hub archived an expanded assembly-created digital badge system, distinct from a physical or electronic attendee badge.
Easterhegg 2024
The 21st Easterhegg in Regensburg, where the Rabbit Chaos Adventure tied campus, laptop, and badge challenges to a public badge repository and hardware-hacking area.
Hackaday Europe 2024
The Berlin Hackaday Europe edition whose public schedule included a badge-hacking ceremony and whose field reports document reuse of the 2023 Vectorscope badge.
39th Chaos Communication Congress
The December 27-30, 2025 Hamburg Chaos Communication Congress whose official info pages documented a Hub badge system for assembly-created digital souvenirs, challenge rewards, and help/exploration badges, alongside independently scoped Cyberwatch and Critical Decentralization Cluster electronic assembly badges.
Gulaschprogrammiernacht 23
Entropia's 2025 GPN edition with source-backed non-electronic attendee badges, lanyard reuse guidance, badge design/production notes, and safeR/orga badge context.
Hackaday Europe 2025
The March 15-16, 2025 Berlin Hackaday Europe edition at MotionLab, with public sources documenting a Supercon 8 SAO badge reuse, revamped Europe firmware, bundled SAOs, and a Saturday-night badge-hacking ceremony.
Lifecycle
Add-ons & Upgrades
Easterhegg 2024 RCA Badge
historical
Rabbit Chaos Adventure badge challenges
The event wiki describes Rabbit Chaos Adventure challenges on campus, laptop, and the badge, making the badge part of the game surface.
rad1o
documented solder option
External antenna and SMA mod
The antenna guide documented temporary human/copper-wire reception tricks and the proper SMA modification, including rotating or bridging the 0-ohm resistor in the RF path.
Easterhegg 2010 eHaserl
historical
Tetris, TV-Bunny, and Ethersex software
The wiki preserves alternative software links for Tetris Sound Track, TV-Bunny, and Ethersex, showing the badge as a small AVR software target beyond the default firmware.
flow3r
ongoing
flow3r app index workflow
New apps are published by adding a TOML pointer under the flow3r-apps index and opening a merge request; after merge the app appears in the public directory.
flow3r
ongoing
flow3r app version releases
The app index treats a commit that increments metadata.version in flow3r.toml as a new release, making post-camp app maintenance part of the badge lifecycle.
Unofficial 36C3 Badge
source-backed
Bring-your-own-controller badge core
The 36C3 badge intentionally shipped without a controller so attendees could attach Arduinos, FPGAs, Feather boards, or other battery-powered controller choices.
TROOPERS11 Nixie Badge
historical
Score programmer and hidden touch target
Hackaday documents a score programmer, a 0-to-9 digit collection challenge, a secret capacitive touch sensor, and pad fields intended for attendee hacking.
39C3 Cyberwatch Badge
source-backed
LoRa shard path
Project documentation and README material link a LoRa expansion shard to an adapted Meshtastic path, indicating an explicit long-range radio capability target.
HiP Berlin 2022 Badge
source-backed
NFC and SAO expansion surface
The documented board exposes I2C through SAO headers and includes an ST25DV04K NFC/I2C EEPROM for badge experiments.
35C3 Labitat Indie Badge
optional
Power-only Shitty Add-On connector
The optional SAO connector follows the rough orientation of the standard for upright add-ons but leaves I2C pins unconnected, making it a power-only aesthetic expansion point.
39C3 Critical Decentralization Cluster Badge
source-backed
Raspberry Pi, SAO, and Grove expansion surfaces
The public repository documents a Raspberry Pi GPIO header, a SAO port, and a Grove-compatible connector as three expansion paths. It does not establish that any particular add-on was distributed or supported at 39C3.
39C3 Critical Decentralization Cluster Badge
source-backed
ESP32-S3 and TROPIC01 secure-element core
The official 39C3 CDC Badge presentation and RIAT hardware repository identify an ESP32-S3 development platform paired with a TROPIC01 secure element. The catalogue does not treat that hardware description as a claim about every physical event unit's exact revision or configuration.
39C3 Cyberwatch Badge
source-backed
Modular watch architecture
The 39C3 Cyberwatch project is documented as a solderable watch-style base badge that is designed to accept interchangeable shard boards through a modular hardware concept.
39C3 Cyberwatch Badge
source-backed
SD-card shard interface
The project documentation describes an SD-card form-factor interface used to carry modular add-on boards in place of fixed accessory ports.
39C3 Cyberwatch Badge
needs completion
Firmware expectation context
Project sources indicate a base firmware expectation around congress time and a prebuilt firmware trail for shard use, but they do not confirm a complete public production release artifact set for all build variants.
Hackaday Europe 2025 SAO Badge
source-backed
Four Supercon Add-On Contest winners
Hackaday's speaker announcement says the four winning Supercon SAO contest entries were being put into the Hackaday Europe 2025 schwag bag.
Hackaday Europe 2025 SAO Badge
source-backed
Supercon touch wheel, LED spiral, and CH32V003 proto boards
The ticket preview lists the Supercon touch wheel, LED spiral, and CH32V003 prototyping boards as included with the Europe badge/add-on bag.
Sputnik / OpenBeacon
historical
OpenBeacon base stations
Sputnik/OpenBeacon tags were read by 30+ OpenBeacon base stations installed around the event venue.
GPN20 Laminated Identity Badge
historical
Badge-issue queue feedback
The feedback page records attendee frustration that badge issuing queues were extremely long, turning a simple identity object into a visible camp-operations issue.
rad1o
historical
Laser-cut and 3D printed cases
The case page linked DXF outlines, simple laser-cut enclosures, SMA-compatible variants, 3D-printable cases, and a limited 32C3 screw-and-spacer kit.
rad1o
historical
GNU Radio and Gqrx workflow
The SDR guide documented GNU Radio, gnuradio-companion, osmocom_fft, Gqrx, SDR#, udev rules, kernel-module workarounds, and cross-platform setup for using rad1o as an SDR peripheral.
HiP Berlin 2022 Badge
source-backed
USB-C Serial/JTAG badge-hacking path
The badge could be connected to a laptop by USB-C for development, with RIOT OS documenting Serial/JTAG flashing and manual bootloader recovery steps.
37C3 Hub Digital Badges
archived
Assembly-created Hub badges
The 37C3 Hub page states that assemblies could create badges that visitors might find during the event.
39C3 Hub Digital Badges
source-backed
Assembly-created badge categories
The 39C3 documentation lists General, Explore, and Help categories for badges created by assemblies through the Hub backoffice.
38C3 Hub Digital Badges
archived disabled
Backoffice badge creation
The 38C3 Hub page states that assemblies could create new badges in the backoffice and that the redeem function is disabled after archival.
38C3 Hub Digital Badges
archived
Categorized Hub badge catalogue
The 38C3 Hub page groups badges into categories such as General, Exploration, and Help while listing assembly and community badge names.
39C3 Hub Digital Badges
source-backed
Profile visibility and management controls
The 39C3 page documents Hub profile display, pending badge acceptance, default visibility, per-badge visibility choices, and badge management controls.
39C3 Hub Digital Badges
source-backed
Redeem-token and QR workflow
The 39C3 page says assemblies could provide redeem tokens with URLs and QR codes so participants could collect badges through the Hub.
37C3 Hub Digital Badges
archived disabled
Redeemable event badge workflow
The archived 37C3 page preserves the Redeem badge workflow but says the function is no longer available after archival.
35C3 Labitat Indie Badge
source-backed
One-bit SR latch badge circuit
The badge turns the 35C3 Refreshing Memories theme into a simple flip-flop memory circuit with two orange LEDs and button-controlled state.
Hackaday Europe 2025 SAO Badge
historical
Badge Hacking Ceremony
The official Hackaday schedule placed the Badge Hacking Ceremony on Saturday night from 22:00 to 24:00.
Hackaday Europe 2024 Vectorscope Badge
historical
Badge-hacking ceremony
The official event schedule included a Saturday-night badge-hacking ceremony, and the heise report describes participants presenting judged badge hacks.
Hackaday Berlin 2023 Voja4 Badge
historical
Badge-hacking ceremony
Hackaday announced a Saturday-night badge-hacking ceremony for attendees to show what they made with the Berlin Voja4 badge.
GPN17 Badge
historical
Hack-the-Badge challenges
The GPN17 challenge page collected badge-hacking tasks, scoring, and prize context for attendees during the event.
Hackaday Europe 2024 Vectorscope Badge
source-backed
Vectorscope analog playground
Hackaday's Vectorscope article and repository frame the badge around MicroPython, oscilloscope-like display behavior, waveform generation, ADC/DAC signal paths, and four analog inputs.
rad1o
historical with 2022 update
binary-cccamp2015 firmware package
The binary repository preserved flashable camp firmware, HackRF images, games, animations, fonts, images, l0dables, and a REV 05 release aligned with HackRF v2022.09.1.
Unofficial 36C3 Badge
source-backed
CircuitPython NeoPixel example
The project page includes a CircuitPython snippet using neopixel.mpy and board.A2 on an Adafruit Feather M4 Express to run a rainbow animation.
rad1o
historical
HackRF and HKRF-OLD modes
The bootloader exposed HACKRF and HKRF-OLD modes, with different USB product IDs for newer and older HackRF software compatibility.
HiP Berlin 2022 Badge
source-backed
RIOT OS hip-badge board target
RIOT OS documents the HiP badge as an ESP32-C3 board with a dedicated `hip-badge` flashing target.
flow3r
ongoing
flow3r firmware update paths
Official docs preserve multiple update paths: webflash, USB mass-storage flashing, and a built-in WiFi updater introduced in firmware v1.3.0.
Hackaday Europe 2025 SAO Badge
announced
Revamped Hackaday Europe firmware
Hackaday's January 2025 preview says the Europe badge would use revamped firmware compared with the Supercon setup.
Hackaday Europe 2025 SAO Badge
source-backed
SAO-port flashing workflow
Hackaday states that the badge could flash the CH32V003-style add-ons through the SAO port.
Easterhegg 2010 eHaserl
historical
USB bootloader programming path
The ATmega88 was already flashed with a USB bootloader so attendees could program it over a normal USB port with avr-gcc, avrdude, and the public SVN checkout.
Easterhegg 2024 RCA Badge
historical
Challenge-unlocked parts progression
Rabbit Radio reports that challenge progress unlocked more parts for the PCB, turning puzzle progress into a physical badge build-up mechanic.
TROOPERS19 Badge
historical
Fuccs Shitty Addon
Jeff and Jann Foehringer designed the Fuccs add-on, with the PCB layout published in its own repository.
Easterhegg 2024 RCA Badge
historical
RCA badge add-ons
Participant reporting says CTF success yielded cool add-ons for the Easterhegg badge and that the badge could later be soldered in the hackerspace.
TROOPERS23 Badge
historical
TROOPERS23 SAO
The separate tr23-sao-hw repository documents a companion SAO board for the TROOPERS23 badge.
r0ket
historical
m0duls and shields
The r0ket wiki tracked hardware hacks, shields, and add-on ideas, making expansion hardware part of the badge culture from the start.
TROOPERS19 Badge
historical
Shitty Addon connector
The TROOPERS19 badge exposed a 3.3 V I2C Shitty Addon interface so the badge could wear its own small add-on boards.
GPN17 Badge
historical
HiFi-Bodge audio board
helge's HiFi-Bodge project extends the badge as an audio-capable hardware add-on.
flow3r
ongoing
Qwiic / STEMMA QT expansions
The badge exposes two JST-SH 4-pin footprints following the I2C Qwiic / STEMMA QT pinout, giving app authors a documented path to breakout-board hardware.
Hackaday Berlin 2023 Voja4 Badge
source-backed
SAO and external IO surface
The architecture notes list four output bits, four input bits, an external connector, serial mention, and an SAO port as the public expansion surface.
r0ket
historical
r0ketlauncher competition
28C3 included USB missile launchers for a competition to combine launcher hardware with r0ket; the first 100 published hacks could keep the launcher.
r0ket
historical
RGB flame m0dules
Team r0ket brought RGB flame m0dules to 28C3 as a purchasable hardware extension for the badge.
card10
historical
ECG electrode pad kit
Hackaday reports a 10 EUR workshop kit for soldering electrode pads to a sacrificial USB-C cable, including a demo where pads on the temples sensed left/right eye movement.
rad1o
historical
SMA antenna and PortaPack-inspired paths
Public writeups and later community experiments connected rad1o to HackRF/PortaPack-style standalone SDR usage beyond the official camp firmware and documented SMA mod path.
Sputnik / OpenBeacon
historical
USB-programmable 2.4 GHz node path
The talk describes a memory-stick-sized ARM7 meshing node design, USB power/reprogramming, RP-SMA antenna, and GCC ARM toolchain support for custom firmware.
GPN20 Laminated Identity Badge
historical
Laminating and lanyard workflow
The volunteer page documents taking a badge sheet from the printer, laminating it, cutting it, making a hole, and attaching it to a lanyard before issuing it to an attendee.
TROOPERS11 Nixie Badge
historical
Cat-5 LANyard switch
The badge used a Cat-5 cable through the board as a LANyard switch, making the physical lanyard part of the badge interaction.
GPN17 Badge
historical
Case, D-pad, snubbel, and pinup accessories
The official badge page links 3D-printable mechanical accessories and CAD resources for carrying, controlling, and decorating the badge.
Easterhegg 2024 RCA Badge
archived source
3D-printable back cover and illumination
The back-cover README documents printable cover and switch-cap files, optional additional LEDs, switched-power pickup pins, LED mounting, masking, and snap-on assembly.
rad1o
historical
Patched RF Analyzer for Android
The wiki pointed Android users to a patched RF Analyzer APK/source path because upstream RF Analyzer did not yet work with rad1o.
Easterhegg 2024 RCA Badge
archived source
Badge/head/hood/arm/back PCB set
The repository exposes separate schematic PDFs and Gerber ZIPs for the badge, head, hood, arm, and back boards, making the RCA artifact a multi-board kit rather than a single PCB record.
flow3r
ongoing
Badge Net
Badge Net builds on Badge Link to provide Ethernet and IPv6 connectivity between badges through the 3.5 mm jacks, exposed to MicroPython as a normal network interface.
39C3 Critical Decentralization Cluster Badge
public release
Versioned KiCad and fabrication release trail
RIAT publishes KiCad hardware, printable cases, documentation, fabrication-generation material, and v1.0/v1.1 releases under CERN-OHL-P-2.0. This preserves a reproducibility trail without proving final event production parity or a recipient inventory.
Easterhegg 2024 RCA Badge
historical
Booklet, postcard, sticker, and lanyard media set
The closing talk lists the wider RCA kit around the badge, including lanyard, business card, two sticker variants, postcard, and booklet.
TROOPERS23 Badge
historical firmware
Badge.Team firmware track
The public Badge.Team firmware repository gives the badge a recoverable software trail instead of leaving the dossier at a hardware-only record.
TROOPERS22 Badge
source-backed minimal record
Badge.Team platform link
PID.codes names Troopers 2022 badges in the Badge.Team platform identifier record, tying the badge to the wider Badge.Team ecosystem even though hardware and firmware details remain unrecovered.
r0ket
historical
28C3 mesh and l0dable update
The 28C3 update promised an improved mesh network, l0dables for interactive installations, and support for the next flame generation.
39C3 Critical Decentralization Cluster Badge
pre-1.0 beta
CDC Badge OS public firmware trail
krim404's public GPL-3.0 CDC Badge OS describes an ESP-IDF/PlatformIO application stack with hardware-key, identity, plugin, and BLE capabilities, but labels itself pre-1.0 beta and warns of data loss on flashing. It is not a verified 39C3 deployment image.
HiP Berlin 2022 Badge
source-backed
37C3 take-home reuse workshop
At 37C3, Hardware Hacking Area mentors provided HiP badges to teams for embedded-programming practice and allowed the devices to be taken home after the showcase.
card10
post-event
card10 firmware and BLE evolution
The 2021 evolution talk documents continuing firmware, Hatchery, BLE, companion-app, sensor, and reuse work after Camp 2019.
GPN23 Identity Badge
documented
Hidden-pattern badge design
The badge how-to records a hidden pattern concept in the printed design and preserves print-production details for A7 landscape badges.
Hackover 2013 Badge
historical
2.4 GHz radio badge surface
The 2013 development post lists 2.4 GHz radio as one of the headline badge features, placing Hackover in the same radio-badge experimentation era as other early European badges.
GPN23 Identity Badge
documented
safeR and orga badge variants
The badge how-to and orga notes preserve safeR, orga, participant-name-sign, and area-owner context for different visible badge roles.
GPN17 Badge
historical
AMG8834 thermal-camera board
The AMG8834 breakout turns the badge expansion interface into a small thermal-camera experiment.
card10
historical
Hatchery apps
card10's wearable hardware was extended through Hatchery-hosted applications and firmware workflows.
flow3r
ongoing
flow3r apps
flow3r's app directory and MicroPython docs support post-event applications, instruments, utilities, and experiments.
GPN17 Badge
historical
ROM store and GulaschPushNotifier ROM
The badge page documents a ROM store and an official GulaschPushNotifier ROM, making app-like software swapping part of the GPN17 experience.
flow3r
ongoing
bl00mbox audio engine
bl00mbox lets multiple flow3r applications make sound together, with foreground/background audio behavior documented for app authors.
Hackover 2013 Badge
historical
Firmware and schematics archive path
The Hackover archive preserved firmware and schematic git clone commands after the event, including a note that KiCad-free users could find schematic PDFs under plots/schematics.
GPN23 Identity Badge
documented
Lanyard reuse and donation workflow
The FAQ asks visitors to bring a reusable lanyard or donate lanyards so the event can reduce waste while still issuing wearable badges.
39C3 Critical Decentralization Cluster Badge
source-backed
Front-lit e-paper display and twelve-button keypad
The official event page describes a front-lit e-paper display and twelve-button keypad; the public hardware repository associates the keypad with a TCA9535 I²C expander.
Hackaday Berlin 2023 Voja4 Badge
source-backed
v0j4 machine-code trainer
The v0j4 project describes the badge as a PIC24 implementation of a 4-bit virtual machine with small instructions, visible registers and stack state, GPIO, and program slots.
Unofficial 36C3 Badge
source-backed
Eight-LED WS2812B string
The kit included a PCB, eight WS2812B addressable LEDs, eight 100 nF capacitors, a lanyard, and bottom-center VCC/data/GND LED-string pads.
35C3 Labitat Indie Badge
source-backed
Reverse-mount artwork backlight
Ten green and ten blue LEDs illuminate the front-side circuit artwork through the PCB, while the assembly guide documents reversed LED mounting and soldering risks.
HiP Berlin 2022 Badge
source-backed
Sixteen WS2812B LEDs
RIOT OS board documentation lists 16 WS2812B LEDs, while the 37C3 workshop source describes the badge as having many RGB LED lights.
Easterhegg 2010 eHaserl
historical
EH2010 soldering workshop
The official wiki walks attendees through solder-bridge removal, LCD connector placement, ATmega88 socketing, IR parts, USB contact soldering, jumpers, and final display insertion.
Easterhegg 2024 RCA Badge
historical
Hardware-hacking area soldering
Attendee writeups place badge soldering and SMD practice inside the event hardware-hacking area, with help and conversation around PCBs and badges.
Hackaday Europe 2024 Vectorscope Badge
historical
Soldering, cases, and add-on experiments
The Berlin field report describes busy soldering benches, a workshop adding a synthesizer and photodiode experiments, 3D-printed cases, and participant hardware add-ons.
Operational history
Issues & Camp Impact
Sputnik / OpenBeacon
major
Sputnik/OpenBeacon made active RFID tracking part of the event experience, and CCC later noted the collected tracking data was made available for analysis.
The badge is a useful early case study for badge infrastructure as both playful telemetry and a privacy-sensitive camp artifact.
Easterhegg 2010 eHaserl
major
The official instructions warn attendees to move the two jumpers under the LEDs to the pins next to the speaker before switching on, otherwise AVR pins could be shorted.
The dossier preserves the kind of practical hardware caveat that matters to badge hackers: assembly order and first-power-on state could damage the device.
Easterhegg 2024 RCA Badge
moderate
Public feedback says some attendees did not understand that RCA was the CTF, that badge-related rewards existed, or how to start early enough.
The badge-linked challenge was praised by some participants but also created discoverability and inclusion friction for others.
rad1o
moderate
The antenna guide warned that incorrect SMA soldering could short nearby pads and cause blue smoke; troubleshooting also linked failed power/backlight behavior to possible SMA-pad shorts.
RF expansion was intentionally hackable but not risk-free; the compendium records it as a hardware-modification caveat rather than a plug-and-play feature.
rad1o
moderate
The troubleshooting page records a failure mode where hackrf_info alternated between errors and success because USB autosuspend disconnected the badge every few seconds.
Laptop power-management defaults could make a working badge look broken until autosuspend was disabled for the rad1o USB IDs.
rad1o
moderate
The troubleshooting page distinguished HACKRF mode with USB ID 1d50:cc15 from HKRF-OLD mode with USB ID 1d50:6089, because older HackRF software might not recognize the newer badge ID.
Using rad1o as an SDR depended on choosing the correct firmware mode and sometimes adding udev rules or updated SDR packages.
GPN20 Laminated Identity Badge
moderate
Public GPN20 feedback complains that queues for issuing badges were very long.
Even non-electronic badges can affect camp operations when printing, laminating, and handout throughput becomes a bottleneck.
card10
moderate
Hackaday reported that the optional official card10 badge was tardy to proliferate and that the badge team continued assembly while camp was already underway.
This captures a real camp-experience issue: a major badge can be technically strong while still arriving late enough to affect who can hack on it during the event.
rad1o
note
The internal antenna was tuned around 2.5 GHz, so the wiki warned that reception in bands such as broadcast FM would be poor without a frequency-appropriate external antenna.
The badge was a real SDR, but practical RF work still required antenna knowledge and sometimes soldered hardware changes.
flow3r
note
The public app directory is not a free-form upload store: a new app becomes visible after a TOML entry is merged into the flow3r-apps index.
This keeps the catalogue honest about flow3r's app lifecycle and gives app authors the real publication path.
The archived page says the redeem badge function is no longer available after the website was archived.
The badge workflow is historical; live redemption behavior should not be inferred from the archived page.
The archived page says the redeem badge function is no longer available after the website was archived.
The badge workflow is historical; live redemption behavior should not be inferred from the archived page.
Hackover 2013 Badge
note
Hackover explicitly changed from the previous year's optional assembled Invader-style board toward giving every attendee an assembled and flashed PCB.
This is useful lore for European badge culture: the organizers optimized for immediate on-site play and beginners, not only for people already comfortable with microcontroller programming.
The official Congress sources call the CDC Badge an electronic conference badge and development board presented by the Critical Decentralization Cluster, but reviewed sources do not identify it as the official CCC Human badge, a general Congress admission credential, a ticket entitlement, a conference-wide handout, an event price, an allocation count, or a recipient ledger.
The record preserves the concrete 39C3 assembly artifact while not conflating a cluster badge with CCC's main credential or assuming every attendee received one.
The later public CDC Badge OS README states that flashing can wipe stored FIDO2/U2F credentials, TOTP seeds, password-vault entries, GPG keys, and PIN data; it calls the project a proof of concept/demonstrator and says not to use it as-is for production or security-critical deployments.
The record may describe the public software capability surface but does not endorse the firmware, vouch for its cryptography, privacy, data durability, or safety, or imply it was the software deployed at 39C3.
The recovered public page documents how 39C3 Hub badges worked but does not expose a stable post-event public catalogue of every created badge name in this pass.
The record preserves the system-level artifact without inventing individual badge names, counts, icons, or assembly-specific rewards.
rad1o
note
Public discussion questioned whether expensive, complex electronic badges were a good use of event resources.
A recurring European badge-culture debate: prestige and hack value versus cost, accessibility, and usefulness for the average attendee.
rad1o
note
Troubleshooting noted that USB, audio, battery connector joints, and rarely IC402 could need inspection, and warned to unplug the battery before soldering.
Camp operation included a practical repair and flash-station workflow, not just software experimentation.
The badge kit came without a controller, so microcontroller, battery, firmware, and enclosure behavior depend on each attendee's external setup.
The record documents the shared PCB and LED kit without implying a single official firmware or complete electronics stack.
The source describes Hub badges created by assemblies and grouped by category, not physical or electronic admission badges.
The catalogue models this as an official digital/community badge system and avoids hardware claims.
The source describes badges created by assemblies, redeemed through tokens or manual assignment, and shown on Hub profiles, not physical or electronic admission badges.
The catalogue models this as an official digital/community badge workflow and avoids hardware claims.
The source describes Hub badges created by assemblies and found during the event, not physical or electronic admission badges.
The catalogue models this as an official digital/community badge system and avoids hardware claims.
The public Hackaday sources announce revamped Europe firmware but this pass did not recover a versioned final Hackaday Europe 2025 firmware release distinct from the upstream Supercon 8 repository trail.
Software claims stay limited to the announced revamped firmware, MicroPython lineage, SAO-port flashing statement, and upstream public repository workflow.
The recovered public sources describe the architecture and lineage, but this pass did not recover a Berlin-specific final firmware, schematic, BOM, or Gerber archive.
Software and hardware claims stay limited to Hackaday's compatibility statement, the v0j4 architecture notes, and the original Supercon badge context.
rad1o
note
Firmware releases progressed from REV 01 flashed on camp badges to REV 05 in 2022, with current firmware described as a way to fix bugs and add functions.
rad1o belongs in the continuing-platform part of badge.gallery: its record should track firmware and HackRF compatibility well after the camp weekend.
The public CDC Badge OS repository was created after the December 2025 event and describes v1.0/v1.1 hardware, while the RIAT hardware repository links multiple possible firmware projects. The reviewed sources do not provide a signed 39C3 image, installed-version inventory, setup/recovery policy for event recipients, event-specific feature configuration, or a historical deployment release mapping.
Later firmware transparency is useful evidence, but the catalogue does not backdate it into a confirmed Congress software image or user-support commitment.
GPN17 Badge
note
The official badge page preserves practical hardware warnings around optional 1 A charging, IR/USB pin sharing, MQ-3 power draw, and expansion use.
The page is a useful example of good badge documentation: it records what can be hacked and where users should be careful.
TROOPERS19 Badge
note
The writeup calls out ESP32-WROVER unusable-pin traps and WS2812B-mini moisture/baking problems that caused debugging and rework.
These caveats make the record useful beyond specs: future badge teams can learn from the production failure modes.
CCCamp 2003 Pass
note
CCCamp 2003 sits before Sputnik/OpenBeacon, and no sourceable public record currently documents an official electronic camp badge comparable to 2007 onward.
The page keeps the transition year visible while avoiding a false continuity of electronic badges.
CCCamp 1999 Pass
note
CCCamp 1999 is part of the camp lineage, but the current public archive does not establish a specific electronic badge artifact.
The page is included as a pass/identity artifact and as an archive-recovery target; electronic-badge claims should wait for primary evidence.
Hackaday says the Berlin badge was re-skinned and included a couple hardware tweaks, but stayed 100% compatible with the 2022 Supercon badge.
The catalogue records the Berlin artifact as an event-specific revision while avoiding unsupported claims about exact PCB changes until a Berlin-specific hardware archive is recovered.
flow3r
note
The flow3r docs and app directory are live, versioned resources rather than frozen Camp 2023 artifacts.
Detail pages should record source dates and expect firmware, app, networking, and expansion guidance to change after the camp.
GPN17 Badge
note
The badge page documents a constrained ESP8266/MicroPython ROM model, including ROM-store use and warnings that some software needed to fit the badge's available flash and RAM reality.
GPN17 was hackable, but successful custom ROM work still required understanding the embedded limits instead of treating the badge like a general-purpose computer.
Hackover 2013 Badge
note
No Hackover 2013 Badge image is published because the current public source trail has not been paired with a reusable original badge or artifact photo or official upstream raster render with source URL, license or permission basis, attribution, and processing notes.
The Germany record remains source-backed and image-free rather than copying source-page media, documentation screenshots, event photos, social media, placeholders, or generated approximations.
No Easterhegg 2024 RCA Badge image is published because the current public source trail has not been paired with a reusable original badge or artifact photo or official upstream raster render with source URL, license or permission basis, attribution, and processing notes.
The Germany record remains source-backed and image-free rather than copying source-page media, documentation screenshots, event photos, social media, placeholders, or generated approximations.
No HiP badge image is published because the recovered photo metadata identifies a real photo and copyright holder but does not provide an explicit reusable license, attribution string, and processing record for badge.gallery.
The record remains source-backed and image-free rather than copying a wiki, event, or documentation image without complete rights provenance.
No 39C3 Cyberwatch badge image is published because the recovered public sources and documentation do not provide a complete reuse basis for an official reusable photograph, attribution, and processing notes.
The entry remains image-free rather than copying unknown-rights project media, generated previews, or social/press photos.
TROOPERS22 Badge
note
No reusable original TROOPERS22 badge photo has been cleared in this pass.
The catalogue publishes the record without a badge image until an original licensed photo can replace it.
No 36C3 badge image is published because the visible project images have not been paired with complete reuse rights, attribution, and processing notes.
The entry remains source-backed and image-free rather than copying project-page imagery without a clear catalogue reuse basis.
No Easterhegg 2010 eHaserl image is published because the current public source trail has not been paired with a reusable original badge or artifact photo or official upstream raster render with source URL, license or permission basis, attribution, and processing notes.
The Germany record remains source-backed and image-free rather than copying source-page media, documentation screenshots, event photos, social media, placeholders, or generated approximations.
TROOPERS23 Badge
note
No reusable original TROOPERS23 badge photo has been cleared in this pass.
The catalogue publishes the record without a badge image until an original licensed photo can replace it.
r0ket
note
No local r0ket badge image is published because the Camp 2011 wiki `R0ket-display.jpeg` file page lists uploader and file history but does not expose an explicit reusable image license, permission basis, or complete attribution/processing trail for catalogue publication.
The record stays source-backed and image-free rather than copying the archived wiki image, Hackaday images, screenshots, or generated approximations.
TROOPERS19 Badge
note
No TROOPERS19 Badge image is published because the current public source trail has not been paired with a reusable original badge or artifact photo or official upstream raster render with source URL, license or permission basis, attribution, and processing notes.
The Germany record remains source-backed and image-free rather than copying source-page media, documentation screenshots, event photos, social media, placeholders, or generated approximations.
GPN23 Identity Badge
note
No local GPN23 identity-badge image is published because the public how-to, FAQ, awareness, and orga pages document the badge workflow but do not provide a rights-cleared original badge photo or official reusable raster render with complete attribution and processing provenance.
The record remains image-free rather than copying wiki images, badge-design screenshots, attendee photos, placeholder art, or generated approximations.
GPN17 Badge
note
No local GPN17 badge image is published because the Entropia wiki file pages and GitHub tree expose useful badge imagery and firmware/UI assets, but no explicit reusable image license, permission basis, attribution requirements, and processing provenance were recovered for catalogue publication.
The record remains source-backed and image-free rather than copying Entropia wiki photos, screenshots, repository web assets, Hackaday.io media, or generated approximations.
Sputnik / OpenBeacon
note
No Sputnik / OpenBeacon image is published because the current public source trail has not been paired with a reusable original badge or artifact photo or official upstream raster render with source URL, license or permission basis, attribution, and processing notes.
The Germany record remains source-backed and image-free rather than copying source-page media, documentation screenshots, event photos, social media, placeholders, or generated approximations.
No documentary photo of the exact Hackaday Europe badge has been cleared for public reuse.
Original Hackaday Europe or Vectorscope badge photos should be added only after license and attribution are cleared.
No 39C3 Critical Decentralization Cluster Badge image is published because the current public source trail has not been paired with a reusable original badge or artifact photo or official upstream raster render with source URL, license or permission basis, attribution, and processing notes.
The Germany record remains source-backed and image-free rather than copying source-page media, documentation screenshots, event photos, social media, placeholders, or generated approximations.
No 35C3 Labitat badge image is published because the project page and assembly photos do not provide a complete reuse basis, attribution string, and processing record for this catalogue.
The entry remains source-backed and image-free rather than copying all-rights-reserved project photography.
No 38C3 Hub badge image is published because the recovered page is an archived catalogue and no reusable badge artwork or screenshot provenance has been cleared.
The record stays image-free rather than copying archived UI screenshots, logos, or unknown-rights badge icons.
No reusable original TROOPERS11 badge photo has been cleared in this pass.
The catalogue publishes the record without a badge image until an original licensed photo can replace it.
CCCamp 2003 Pass
note
No CCCamp 2003 pass image is published because no source-backed original artifact photo with source URL, license or permission basis, attribution, and processing notes has been recovered.
The entry remains image-free rather than reusing unrelated badge photos, generated imagery, or archive-adjacent visuals.
No original documentary photo or official upstream raster render of the Hackaday Europe 2025 badge has been recovered with a reusable license, permission basis, attribution, and processing trail.
The badge stays image-free rather than copying Hackaday article media, repository photos, screenshots, social media, or generated approximations.
No 39C3 Hub badge image is published because no reusable badge artwork, icon set, or screenshot provenance has been cleared with source URL, license or permission basis, attribution, and processing notes.
The record stays image-free rather than copying Hub UI screenshots, logos, badge icons, event graphics, or generated approximations.
No 37C3 Hub badge image is published because the recovered page is a text-heavy archived catalogue and no reusable badge artwork or screenshot provenance has been cleared.
The record stays image-free rather than copying archived UI screenshots, logos, or unknown-rights badge icons.
CCCamp 1999 Pass
note
No CCCamp 1999 pass image is published because no source-backed original artifact photo with source URL, license or permission basis, attribution, and processing notes has been recovered.
The entry remains image-free rather than reusing unrelated badge photos, generated imagery, or archive-adjacent visuals.
No local GPN20 identity-badge image is published because the public wiki sources document the printed-and-laminated workflow but no reusable original artifact photo or official raster render has been paired with source URL, license or permission basis, attribution, and processing notes.
The record stays source-backed and image-free rather than copying wiki media, attendee photos, screenshots, placeholder art, or generated approximations.
The source set supports an on-site printed and laminated identity badge, not a PCB badge.
The dossier keeps GPN20 in the European badge archive while avoiding unsupported electronics, firmware, app-store, or hardware claims.
GPN23 Identity Badge
note
The public record supports a printed identity badge and lanyard workflow, not an electronic PCB badge for GPN23.
The dossier keeps GPN23 discoverable while preventing false firmware, microcontroller, app-store, or hardware claims.
card10
note
Hackaday cautioned that card10 should not be mistaken for a watch, noting that timekeeping was effectively an afterthought and that setting the clock depended on the companion app because there was no battery-backed RTC.
The page separates card10's wearable form factor from ordinary smartwatch expectations and keeps the focus on sensors, BLE, and hackability.
The closing talk includes attendee reaction about buying a ticket yet not receiving parts, while Rabbit Radio describes challenge progress unlocking more parts for the badge.
The RCA build-up mechanic was part of the fun, but also created expectations around badge parts and prize/reward availability.
The Commons/Flickr photo description contains the typo 'macjine code'; badge.gallery records the machine-code behavior in normalized wording while preserving the source title and provenance.
The image is still usable because the license, attribution, Flickr source, and review status are explicit; the typo is not treated as technical evidence beyond the intended machine-code description.
RIAT publishes versioned v1.0 and v1.1 hardware sources, KiCad fabrication material, cases, and documentation, but the reviewed public record does not map a specific release, component substitutions, test result, PCB lot, enclosure, battery, production quantity, factory/assembly path, or final configuration to each physical 39C3 unit.
Open hardware remains a preservation and reproduction trail without becoming a claim that every 39C3 badge exactly matches a current repository release or bill of materials.
The current source trail shows a complete project concept and extension design, but public recovery in this pass does not fully prove how broadly distributed Cyberwatch badges were or document a complete attendance-wide shipping ledger.
The dossier records what is sourced—badge architecture and shard concept—without over-claiming circulation or official distribution scope.
The 37C3 workshop used remaining HiP badges as free team hardware for learning, not as 37C3 official attendee badges.
The record treats 37C3 as lifecycle and reuse evidence while keeping the badge assigned to Hacking in Parallel Berlin 2022.
RIAT's firmware checklist says the BQ25895 default fast-charge current would damage the documented 1200 mAh bundled LiPo and directs firmware developers to lower it; it also covers USB charging-port detection, system-voltage configuration, shipping-mode power-off, and TROPIC01 sleep. The public record does not establish that all 39C3 units had those settings, a matching battery, protection validation, current/thermal testing, compliance review, or safe user configuration.
The catalogue surfaces the published operational caution without presenting the badge as electrically validated, safe to charge, or safe to flash under every firmware/configuration combination.
The assembly instructions document a PCB design error where missing LED keepout areas required rotary-tool copper removal on boards, while the GitHub design files had the error fixed.
The record preserves production reality and warns future builders that surviving boards may differ from repository files.
GPN23 Identity Badge
note
The FAQ describes GPN23 as having no classic tickets while still requiring registration and noting that capacity exists.
Badge pickup and identity workflow should be read alongside the event's registration and capacity-control model.
The upstream `Hack-a-Day/2024-Supercon-8-Add-On-Badge` GitHub API metadata reported `license: null` during this pass.
Repository photos and renders are retained as evidence only unless a separate explicit image license or permission basis is recovered.
TROOPERS23 Badge
note
The current dossier establishes the badge, firmware, and SAO repositories, but detailed component-level claims should be added only after reviewing schematics, BOM files, and firmware internals.
This keeps the record useful without turning repository existence into unverified hardware-spec prose.
The Berlin badge record is a European event reuse of the 2023 Hackaday Supercon Vectorscope badge rather than a newly designed Berlin-only PCB.
badge.gallery should preserve both the European field context and the upstream Vectorscope hardware/firmware lineage without implying a separate 2024 board design.
The public evidence identifies the Europe badge through the Supercon 8 SAO badge lineage with Europe-specific firmware and add-on distribution, not as an independently new Berlin PCB.
The record should remain tied to Hackaday Europe 2025 while preserving the upstream 2024 Supercon hardware/software lineage.
The 37C3 workshop advertised a TVOC air-quality sensor, but RIOT OS notes that the SGP30 sensor was only populated on some boards.
The hardware description keeps the TVOC claim tied to source context and records that not every physical badge necessarily carried the same populated sensor set.
RIOT OS documentation says the event and badge were organized in about six weeks and records hardware issues around the missing WiFi/BLE antenna connection, broken IR transceiver, partially populated SGP30 sensor, and missing MAX17048 fuel gauge.
The catalogue records the shipped board as a real attendee badge while preserving the known build limitations.
Sources mention expected base firmware and linked firmware material but do not establish a single canonical, fully documented OTA/app ecosystem for all shard variants in this source pass.
The software record stays tied to the published architecture and shard references instead of inventing an endpoint, app-store, or locked release stream model.
Sputnik / OpenBeacon
note
The surviving record is strong for talk abstracts and data history, but original project photos and source mirrors need archive/licensing review before adding imagery.
The page is sourceable, but the image remains empty until a licensed original badge photo is cleared.
The wiki preserves strong assembly and flashing instructions, but several referenced media and source URLs are old brezn/blinkenlichts-era links that need archival review before adding a cleared image or claiming a complete BOM.
The current record keeps sourceable details while marking original-photo, full-BOM, and source-history recovery as future work.
Hackover 2013 Badge
note
The Hackover blog and archive support the event, ticket, feature-list, firmware, and schematic-link facts, but the current live git redirect requires authentication and has not been mirrored into this dossier.
The first-pass record avoids unsourced chip-level, firmware-feature, and designer-credit claims until the repositories or original media are recovered.
The repository review confirms schematics, Gerbers, LCSC parts exports, media, 3D-print files, NE556-related challenge material, and multi-board RCA structure, but this pass still does not claim a complete firmware architecture or full electrical BOM extraction.
The dossier is now specific about the public artifact package while still avoiding unsupported firmware and chip-level claims beyond what the repository and reports expose.
TROOPERS22 Badge
note
The current public source set confirms a Badge.Team-linked Troopers 2022 badge record, but does not yet provide a full hardware writeup, firmware repository, app-store page, author list, or field report.
The dossier is intentionally conservative: it preserves the record without inventing component-level specs or badge-team credits.
The current source set documents the badge concept and attendee-facing hardware, but does not recover original schematics, firmware, BOM, or a complete creator archive.
The dossier preserves the badge without inventing chip-level or high-voltage design details that are not present in the public sources.
TROOPERS19 Badge
note
The hardware designer says migrating the PCB workflow from Eagle to KiCad caused painful delays, even though it left the design files in an open format.
The badge is a good example of how open-toolchain choices can improve reuse while still affecting event production schedules.
The badge announcement and project page identify the artifact as unofficial and distributed informally as kits at Congress.
The catalogue keeps it separate from official CCC event identity and models it as independent Congress badgelife.
The project page says there was not an official DEF CON-style electronic badge tradition at Congress and frames this as an indie badge made for Labitat.
The catalogue treats the badge as Congress hallway badgelife, not as an official CCC admission badge.
The wiki says the name-badge upgrade kit was already sold out and asks for a parts and supplier list, while also mentioning battery exchanges for people who did not receive the larger battery.
This records the logistical side of early badge workshops: kits, batteries, and replacement parts shaped the attendee experience.
Resources
EH21 LCSC parts exports
BOM/parts source · Repository folder with LCSC exports listing SMD LEDs, battery holder, NE556 timer IC, capacitors, and other ordered parts.
GPN23 FAQ badge and lanyard note
FAQ · FAQ guidance for visitor badges, lanyard reuse, and no-classic-ticket registration context.
Shitty Add-On standard coverage
add-on context · Context for the badge add-on interface referenced in the TROOPERS19 writeup.
Hatchery
app repository · Badge.Team entry point for the Hatchery app repository used by card10.
flow3r app directory
app store · Live badge app directory.
flow3r app index repository
app-store source · Publishing workflow for app-index merge requests and versioned releases.
2023 Supercon Vectorscope badge article
article · Hackaday article introducing the Vectorscope badge hardware, software, and signal-generation concept.
2024 Supercon 8 SAO Badge reveal
article · Upstream hardware/source article for Pico W, six SAO ports, individually accessible GPIO, dual I2C buses, starter petals, MicroPython, and CH32V003 context.
Hackaday Europe 2025 speakers and SAO bag note
article · Hackaday article documenting the four Supercon Add-On Contest winners being included in the Europe schwag bag.
Hackaday Europe 2025 ticket and badge preview
article · Primary Hackaday article for March 15-16, 2025 MotionLab.Berlin dates, badge-hacking/workshop context, SAO showpiece framing, revamped firmware, included add-ons, and badge flashing through the SAO port.
Hackaday hands-on card10
article · Hands-on report documenting late assembly, ECG-pad workshop use, documentation quality, and RTC/watch caveats.
Supercon 2024 badge add-on winners
article · Post-event source for Supercon Add-On Contest winners and the plan to produce selected add-ons for Hackaday Europe 2025 distribution.
How to grow a flow3r
assembly and app talk · Camp talk covering assembly, operation, software writing, community, and extension paths.
35C3 badge assembly instructions
assembly guide · Detailed assembly guide source for components, two-AA battery holder, reverse-mounted buttons and LEDs, power-only SAO footprint, and board-rework caveat.
Critical Decentralization Cluster at 39C3
assembly retrospective · The cluster's own 39C3 page ties the CDC Badge repository to the completed December 27-30, 2025 Hamburg assembly context.
GPN20 feedback
attendee feedback · Public feedback page preserving queue complaints around badge issuing.
flow3r bl00mbox guide
audio docs · Audio synthesis and processing engine for foreground and background applications.
GPN23 awareness badge etiquette
awareness page · Awareness page asking attendees to use names and pronouns written on badges.
Get started with hacking the badge
badge workshop · Primary HiP schedule session describing the badge as a powerful lanyard device programmable from a laptop and USB cable.
RIOT OS HiP Badge board docs
board support · RIOT OS board documentation for ESP32-C3FH4AZ, SAO/I2C, UART, 16 WS2812B LEDs, USB-C Serial/JTAG, buttons, ST25DV04K, flashing flow, and known hardware bugs.
Inside Sputnik & OpenBeacon
camp talk · Camp 2007 Fahrplan talk with hardware, firmware, and post-camp badge-use goals.
Camp 2015 Rad1o project
camp wiki project · Camp wiki record with MuCCC location, project people, tags, and self-organized rad1o sessions.
rad1o laser case
case add-on docs · Laser-cut and 3D-printed case paths, DXF outline files, SMA-compatible case notes, and 32C3 kit context.
GPN17 Hack-the-Badge
challenge page · Camp challenge page for badge hacking, scoring, and prize ceremony links.
EH21 media and booklet
challenge/media source · Repository folder with RCA talk PDF, booklet PDF, audio media, and PCB imagery.
Jana Marie Hemsing project notes
creator page · Portfolio notes for the GPN17 badge and hardware add-ons.
eHaserl writeup
creator writeup · Simon Schoar's project index identifies eHaserl as the Easterhegg 2010 conference badge.
24C3 Sputnik data
data release note · CCC Event Blog post about released Sputnik/OpenBeacon RFID tracking data.
flummer/35c3-badge
design files · Public GitHub design-file repository linked from the project page for the 35C3 Labitat badge.
tidklaas/hip-badge
design files · Public GitLab project linked as design-file evidence by the RIOT OS board documentation.
Hackover 2013 registration post
event announcement · Hackover post announcing registration and confirming that the ticket included an assembled badge PCB.
CCC events archive
event archive · CCC event archive context for the broader camp lineage.
CCC events archive
event archive · CCC event archive context for the broader camp lineage.
CCCamp 1999 recordings
event archive · media.ccc.de archive proving the event lineage and public talks for the first Chaos Communication Camp.
CCCamp 2003 recordings
event archive · media.ccc.de archive proving the event lineage and public talks for Chaos Communication Camp 2003.
Hackover badge development post
event blog · Hackover development post listing ARM processor, 2.4 GHz radio, LCD, USB, and buttons.
CCC decentralized year-end event post
event context · CCC Event Blog source positioning Hacking in Parallel as a decentralized year-end event after the large Congress cancellation, with Berlin location and organizer context.
Hackover 2014 CCC announcement
event context · CCC Event Blog context describing Hackover's Hannover setting and the return of a microcontroller-and-display badge.
Easterhegg 2024 feedback
event feedback · Public feedback page with RCA/CTF communication caveats and badge praise.
GPN17 media archive
event media · media.ccc.de archive for GPN17 talks and badge-related sessions.
GPN17 event page
event page · Official event page with dates and Karlsruhe venue context.
GPN20 event page
event page · Official Entropia event page for GPN20 dates, location, and Karlsruhe context.
Hackaday Europe 2024 event page
event page · Official Hackaday.io event page for the Berlin conference, including the badge-hacking ceremony in the schedule.
Hackaday Europe 2025 Hackaday.io project
event page · Hackaday.io project page describing the event as the central station for badge and add-on resources.
Hackaday Europe 2025 event page
event page · Official event entry for the 2025 Berlin Hackaday Europe gathering and badge/add-on resource hub.
TROOPERS11 event archive
event page · Official TROOPERS11 archive page for conference context.
TROOPERS19 event page
event page · Official TROOPERS19 event page.
TROOPERS22 event page
event page · Official TROOPERS22 event page for conference context.
TROOPERS23 event page
event page · Official TROOPERS23 event page for conference context.
Hackaday Europe Berlin field report
event report · heise report documenting that Hackaday Europe reused the 2023 badge and describing soldering, workshops, cases, add-ons, and judging.
EH21 hardware-hacking area
event wiki · Event hardware-hacking area page for soldering and badge work context.
Easterhegg 2024 wiki
event wiki · Official event wiki naming OTH Regensburg and Rabbit Chaos Adventure challenges on campus, laptop, and badge.
GPN23 event wiki
event wiki · Official Entropia wiki entry for GPN23 at HfG and ZKM Karlsruhe.
BitBastelei rad1o firmware upgrade
field note · Short field note showing firmware updates as post-camp maintenance via MSC mode.
Rabbit Radio Easterhegg report
field report · Campus radio report naming Tobias Dorn as the creative head behind RCA and describing the badge kit, challenge flow, and part-unlock mechanic.
binary-cccamp2015
firmware binaries · Binary package for flashing rad1o without the full dependency stack, including camp, HackRF, l0dable, font, image, and game assets.
flow3r firmware update guide
firmware docs · Webflash, USB mass-storage, and on-device WiFi update paths.
rad1o firmware releases
firmware history · Firmware revision table from REV 01 camp images through REV 05 HackRF v2022.09.1 update.
TROOPERS23 firmware
firmware source · Badge.Team firmware repository for the TROOPERS23 badge.
CDC Badge OS README
firmware status and safety documentation · The firmware README documents ESP-IDF/PlatformIO, FIDO2/WebAuthn, GPG/SSH, TOTP, password-vault, plugin, BLE, and data-loss/early-beta caveats.
AMG8834 thermal add-on
hardware add-on · Surviving project-list source for the AMG8834 thermal-camera breakout board for the GPN17 badge.
Fuccs Shitty Addon hardware
hardware add-on · Fuccs Shitty Addon repository linked from the TROOPERS19 badge hardware post.
GPN17 HiFi-Bodge
hardware add-on · Hackaday.io audio add-on for the GPN17 badge.
rad1o antennas
hardware add-on docs · Internal antenna, temporary human/copper antenna, SMA modification, and soldering warning notes.
TROOPERS23 SAO hardware
hardware add-on source · Public companion SAO hardware repository for the TROOPERS23 badge ecosystem.
CDC Badge open-hardware repository
hardware and documentation repository · RIAT's public CDC Badge source tree with KiCad hardware, printable cases, documentation, fabrication instructions, expansion descriptions, and linked firmware projects.
Nixie Tube Conference Badge
hardware article · Hackaday coverage of the TROOPERS11 badge, its nixie display, programming station, Cat-5 LANyard switch, capacitive touch trick, and hacking pads.
TROOPERS19 badge hardware writeup
hardware article · ERNW/Insinuator post by Jeff about the badge hardware, production, and add-on work.
flow3r hardware specs
hardware docs · ESP32-S3, flash, WiFi/BLE, petals, Badge Link, MIDI-compatible UART, USB-C, and expansion context.
rad1o hardware overview
hardware docs · Hardware overview covering RF path, LCD, joystick, audio, Micro-USB, antenna, and HackRF compatibility.
flow3r Qwiic expansion guide
hardware expansion docs · I2C Qwiic / STEMMA QT connector footprint and breakout-board expansion path.
CDC Badge CERN-OHL-P-2.0 hardware license
hardware license · Public CERN Open Hardware Licence v2 Permissive source for the RIAT CDC Badge project, with third-party component attribution retained separately by the repository.
EH21 Gerber packages
hardware manufacturing source · Repository folder with Gerber ZIPs for badge, head, hood, arm, and back boards.
TROOPERS23 badge hardware
hardware source · Public GitHub repository for the TROOPERS23 badge hardware design.
muCCC badge frames
history note · muCCC badge-history note placing eHaserl before r0ket and later camp badges.
HiP badge photo metadata
image-rights reference · HOPE wiki file metadata identifies a HiP Berlin badge photo and copyright holder, but does not provide a reusable image license for this catalogue.
flow3r license
license and authorship · Firmware license page defining Flow3r Badge Authors as direct git contributors.
Hackaday Berlin 2023 Voja4 photo
licensed image source · Wikimedia Commons source page for Mitch Altman's original documentary photo, including CC BY-SA 2.0 license, FlickrreviewR confirmation, attribution, and file metadata.
2022 Supercon Voja4 article
lineage article · Hackaday article establishing the original Supercon Voja4/retrocomputer badge context that the Berlin badge reused and re-skinned.
TROOPERS12 CFP follow-up
mailing-list archive · ERNW/TROOPERS announcement pointing readers back to the previous year's badge.
EH21 back-cover 3D prints
mechanical add-on source · Repository folder documenting back-cover STL, switch-cap STL, FreeCAD source, and optional extra LED illumination.
flow3r Badge Net guide
networking docs · IPv6 networking between badges over Badge Link and the 3.5 mm jacks.
The CDC Badge: conference badge & devboard with TROPIC01 and ESP32-S3
official 39C3 assembly event · Primary official Congress event page explicitly calling the artifact an electronic conference badge and devboard, and naming its TROPIC01, ESP32-S3, e-paper, LiPo, keypad, and expansion surface.
Hackaday Berlin badge preview
official article · Hackaday preview announcing the Berlin badge as a re-skinned, hardware-tweaked, Supercon-compatible Voja Antonic computer trainer and scheduling the badge-hacking ceremony.
39C3 Critical Decentralization Cluster assembly
official assembly page · Official 39C3 assembly page for the Critical Decentralization Cluster, which lists the CDC Badge presentation in its recorded assembly programme.
37C3 Hub Badges
official badge catalogue · Archived Hub badge catalogue explaining that assemblies created badges that visitors could find during the event.
38C3 Hub Badges
official badge catalogue · Archived Hub badge catalogue explaining assembly-created badges, categories, and the disabled post-archive redeem function.
39C3 Badges and you
official badge workflow documentation · Official info page documenting participant badge collection, redeem tokens, profile display, assembly backoffice badge creation, badge categories, QR codes, and Hub visibility controls.
CCC announcement
official blog · Badge concept, hardware, cost, and availability.
CCC announcement
official blog · Original camp announcement and project framing.
card10 docs
official docs · Official project homepage and update notes.
flow3r docs
official docs · Usage, firmware, and app ecosystem docs.
37C3 info pages
official event page · Official event info source for Hamburg, December 27-30, 2023, and the Hub navigation that includes Badges and you.
38C3 info pages
official event page · Official event info source for Hamburg, December 27-30, 2024, and the Hub navigation that includes Badges and you.
39C3 info pages
official event page · Official event info source for 39C3 POWER CYCLES in Hamburg, December 27-30, 2025, and the Hub navigation that includes Badges and you.
Hackaday Berlin 2023 event page
official event page · Official Hackaday.io event page for Berlin, Germany, March 25-26, 2023, at MotionLab.Berlin.
Hacking in Parallel Berlin 2022
official event page · Primary event page for the December 27-30, 2022 dates, ETI Schauspielschule Berlin venue, c-base adjacency, organizer communities, tickets, and workshop/stage context.
35C3 wiki
official event wiki · Official archived 35C3 wiki source for event context, Leipzig setting, and annual four-day CCC congress framing.
36C3 wiki
official event wiki · Official archived 36C3 wiki source for event context, Leipzig setting, and annual four-day CCC congress framing.
39C3 Cyberwatch project page
official project page · Primary 39C3 assembly project page documenting the Cyberwatch modular smartwatch concept.
TROOPERS23 badge retrospective
official retrospective · Official badge-team PDF retrospective for the TROOPERS23 badge story and post-event context.
HiP Berlin 2022 no-JavaScript schedule
official schedule · Schedule source for event days, ETI/c-base rooms, opening event, and the badge-hacking session added during the event.
Camp 2011 r0ket wiki
official wiki · Primary camp wiki entry.
EH2010 badge wiki
official wiki · Assembly, flashing, errata, alternative software, and parts notes for the eHaserl badge.
GPN17 badge wiki
official wiki · Main badge page with hardware, software, CAD, ROM-store, API, and add-on details.
rad1o badge wiki
official wiki · Main wiki with hardware, software, firmware, antenna, case, media, and troubleshooting entry points.
GPN23 orga Badges area
orga page · Orga table naming Badges as the area responsible for participant name signs.
Easterhegg 21 attendee report
participant report · Attendee writeup linking the badge repository and describing SMD soldering in the hardware-hacking area.
Un-Hack-Bar Easterhegg report
participant report · Participant report documenting CTF placement, badge add-ons, and later soldering.
TROOPERS11 official Flickr set
photo archive · Official TROOPERS photo set for the 2011 event.
Badge.Team
platform context · Badge.Team platform context for European event badges using its ecosystem.
Badge.Team Troopers 2022 PID record
platform identifier · PID.codes entry for Badge.Team platform hardware that explicitly lists Troopers 2022 badges.
r0ket++
post-camp talk · 28C3 media listing for the r0ket++ follow-up talk.
28C3 bring your r0ket
post-camp update · Post-camp update covering improved mesh, l0dables, RGB flame m0dules, new r0kets, and a USB missile-launcher hacking competition.
CDC Badge OS source
post-event public firmware · Public GPL-3.0 firmware project for CDC Badge v1.0/v1.1 hardware. Its January-July 2026 public history is kept separate from an asserted 39C3 deployed image.
CDC Badge firmware configuration checklist
power and firmware caution · Source-published checklist covering BQ25895 charge-current/power settings, USB interaction, and TROPIC01 sleep requirements; it is not proof of configuration on every event unit.
GPN23 badge how-to
production notes · Badge design and production notes with format, print, lanyard, marker, and used-count details.
My unofficial 36c3 badge
project announcement · Project-owner announcement for the unofficial 36C3 badge kit, bringing kits to Congress, and the bring-your-own-controller blinky-badge goal.
OpenBeacon project archive
project archive · Archived OpenBeacon project site for historical context.
v0j4 architecture notes
project details · Hackaday.io v0j4 notes describing the 4-bit architecture, instruction and memory model, LED raster display, GPIO, serial path, SAO port, and PIC24 implementation.
35C3 badge for Labitat
project page · Project-owner source for unofficial classification, Labitat context, SR-latch memory theme, reverse-mount LEDs, board artwork, and GitHub design-file link.
Unofficial 36c3 badge
project page · Project-owner source for PCB kit contents, eight WS2812B LEDs, prototyping area, VCC/data/GND pads, and CircuitPython example.
r0ket site
project site · Historic project site referenced by the camp wiki.
rad1o troubleshooting
repair notes · Troubleshooting page covering flash station, HackRF modes, USB IDs, autosuspend, antenna, and soldering caveats.
Hacking the HiP Badge at 37C3
reuse workshop · 37C3 Hardware Hacking Area source documenting that all HiP attendees received an electronic badge and listing RGB LEDs, USB, battery charging, NFC, TVOC sensor, and take-home workshop reuse.
GPN20 Fahrplan
schedule · Public schedule page for GPN20 event context.
Hackaday Europe 2025 schedule
schedule · Hackaday schedule source for the Saturday-night Badge Hacking Ceremony and official event-page launch.
eHaserl schematic
schematic · Schematic link from the official badge assembly page.
EH21 schematic PDFs
schematic source · Repository folder with schematic PDFs for the badge, head, hood, arm, and back boards.
rad1o SDR software guide
software docs · GNU Radio, Gqrx, SDR#, Android RF Analyzer, udev, kernel-module, and HKRF-OLD workflow notes.
2024 Supercon 8 SAO Badge repository
source · Upstream public repository for the reused SAO badge lineage, hardware/software resources, I2C notes, and badge-hack material.
EH2010 badge source tree
source · SVN checkout path used by the wiki's flashing example.
EH21 badge repository
source · Public repository described as files for the Easterhegg 2024 RCA Badge.
GPN17 badge GitHub
source · Public hardware/software repository linked from the badge page.
TROOPERS19 badge hardware
source · Open KiCad schematic, layout, gerbers, and assembly-data repository linked from the hardware post.
Vectorscope repository
source · Public hardware, firmware, BOM, Gerber, drill, KiCad-conversion, and MicroPython asset repository.
rad1o GitHub
source · Project source organization.
Hackover badge firmware archive
source archive · Archived Hackover post preserving firmware and schematic git clone URLs for badge hackers.
How we bodged the Badge
talk · Public talk about badge development and production.
Lötworkshop-Vortrag
talk · media.ccc.de talk described as the surprise talk for the Easterhegg surprise badge.
Rabbit Chaos Adventure closing
talk · Closing talk about the Rabbit Chaos Adventure, badge, and puzzle resolution.
The rad1o talk
talk · Hardware, software, and creation-history talk.
card10 Badge talk
talk · Camp 2019 talk introducing the badge, biosensors, BLE, interh4cktions, and camp integration.
card10 two years of evolution
talk · Post-camp talk on firmware, Hatchery, BLE, sensor, companion-app, and reuse evolution.
r0ket talk
talk · media.ccc.de camp listing includes r0ket: The CCC-Badge.
media.ccc.de recording
talk recording · Recording page for the Sputnik/OpenBeacon Camp 2007 talk.
39C3-release_board README
technical documentation · Raw repository README for the 39C3 release-board hardware and shard references.
Cyberwatch documentation
technical documentation · Project documentation covering the SD-card shard interface, shard-based hardware extension model, and configuration path.
CDC Badge v1.1 hardware release
versioned open-hardware release · Public v1.1 release evidence for the CDC Badge hardware tree. It does not identify which source revision, if any, was on a particular 39C3 physical unit.
GPN20 troll handbook badge issuing
volunteer workflow · English volunteer page documenting printed badge sheets, laminating, cutting, and lanyard attachment.
.jpg){kind=link}
Sources
37C3 Hardware Hacking Area: Hacking the HiP Badge
Retrieved 2026-05-15 · Primary post-event source saying all HiP attendees received an electronic badge and documenting RGB LEDs, USB, battery charging, NFC radio, TVOC sensor, free team hardware, and take-home reuse.
37C3 Hub: 37th Chaos Communication Congress - Badges
Retrieved 2026-05-15 · Primary source for assembly-created digital badges, event discovery/redeem workflow, and archived post-event state.
38C3 Hub: 38C3 - Badges
Retrieved 2026-05-15 · Primary source for assembly-created digital badges, categories, event discovery/redeem workflow, and archived post-event state.
39C3 Hub / Chaos Communication Congress: Critical Decentralization Cluster
Retrieved 2026-05-15 · Official assembly source that places the CDC Badge presentation in 39C3's cluster programme and describes the Critical Decentralization Cluster's event role.
39C3 Hub / Chaos Communication Congress: The CDC Badge: conference badge & devboard with TROPIC01 and ESP32-S3
Retrieved 2026-05-15 · Primary official Congress source identifying the CDC Badge as an electronic conference badge and devboard with TROPIC01, ESP32-S3, e-paper/frontlight, LiPo battery path, keypad, and expansion ports.
39th Chaos Communication Congress Infos: Badges and you
Retrieved 2026-05-15 · Primary official source for Hub digital badge collection, token redemption, profile management, assembly-created badges, categories, and backoffice workflow.
Adlerweb: BitBastelei #180b - Rad1o SDR - Firmware-Upgrade
Retrieved 2026-05-15 · Secondary field note that current firmware could fix bugs and add functions, with MSC mode making updates quick.
Badge.Team: Badge.Team
Retrieved 2026-05-15 · Platform context for Badge.Team-powered European event badges.
Badge.Team: Badges
Retrieved 2026-05-15 · Notes card10's Hatchery app repository relationship.
CCC: CCC events archive
Retrieved 2026-05-15 · Source context for the Chaos Communication Camp lineage.
CCC: CCC events archive
Retrieved 2026-05-15 · Source context for the Chaos Communication Camp lineage.
CCC Event Blog: 24C3 Sputnik Data available
Retrieved 2026-05-15 · Primary context for the public tracking-data afterlife.
CCC Event Blog: 28C3 - Bring your r0ket
Retrieved 2026-05-15 · Post-camp lifecycle source for improved mesh, l0dables, RGB flame m0dules, additional r0kets, and r0ketlauncher hacking.
CCC Event Blog: Camp 2023 - The flow3r Badge
Retrieved 2026-05-15 · Primary hardware and cultural framing.
CCC Event Blog: Dezentrale Jahresendveranstaltungen
Retrieved 2026-05-15 · CCC context source for the cancelled large year-end event, the decentralized HiP Berlin gathering, ETI/c-base location, and chaos-community framing.
CCC Event Blog: Hackover 2014 vom 24.-26.10.
Retrieved 2026-05-15 · Supporting source for Hackover venue, C3H context, and the microcontroller/display badge tradition.
CCC Event Blog: r0ket tag
Retrieved 2026-05-15 · Later CCC reference to r0ket's post-camp life.
CCC Event Blog: rad1o
Retrieved 2026-05-15 · Primary source for purpose, SDR framing, and frequency range.
Camp 2007 Fahrplan: Inside Sputnik & OpenBeacon - Smart Dust for the Masses
Retrieved 2026-05-15 · Primary source for hardware, firmware, protocols, base stations, and post-camp usage framing.
Camp 2011 Public Wiki: R0ket
Retrieved 2026-05-15 · Primary source for badge identity, team, development-board framing, contributed code, and hardware hacks.
Camp 2015 wiki: Projects:Rad1o
Retrieved 2026-05-15 · Primary camp project record naming MuCCC, project people, SDR tags, and self-organized antenna/GnuRad1o sessions.
Chaos Communication Congress: 35C3 Wiki
Retrieved 2026-05-15 · Official event source for 35C3 as the 2018 annual four-day CCC congress in Leipzig.
Chaos Communication Congress: 36C3 Wiki
Retrieved 2026-05-15 · Official event source for 36C3 as the 2019 annual four-day CCC congress in Leipzig.
Chaos Communication Congress: 37th Chaos Communication Congress Infos
Retrieved 2026-05-15 · Official event source for 37C3 in Hamburg, December 27-30, 2023, and the Hub navigation surface.
Chaos Communication Congress: 38th Chaos Communication Congress Infos
Retrieved 2026-05-15 · Official event source for 38C3 in Hamburg, December 27-30, 2024, and the Hub navigation surface.
Chaos Communication Congress: 39C3 Cyberwatch project page
Retrieved 2026-05-15 · Primary official project page for the 39C3 Cyberwatch hardware concept and event context.
Chaos Communication Congress: 39th Chaos Communication Congress Infos
Retrieved 2026-05-15 · Official event source for 39C3 POWER CYCLES in Hamburg, December 27-30, 2025, and the Hub navigation surface.
Codeberg: 39C3-release_board repository
Retrieved 2026-05-15 · Primary repository source linked from project docs for CAD references, firmware, and supporting project assets.
Codeberg: Cyberwatch documentation
Retrieved 2026-05-15 · Public project documentation describing the modular shard concept and software/firmware build notes.
Codeberg: cyberwatch/39C3-release_board README
Retrieved 2026-05-15 · Raw public README describing hardware layout, SD-card sharding design, and branch of modular watch extensions.
Critical Decentralization Cluster: 39C3
Retrieved 2026-05-15 · Cluster-owned retrospective for the completed 39C3 assembly, its dates and location, and its direct CDC Badge repository link.
EH2010 wiki: Bestueckung
Retrieved 2026-05-15 · Primary source for assembly order, ATmega88, USB bootloader, flashing command flow, alternative software, errata, and safety notes.
Easterhegg 2024 Wiki: Easterhegg 2024
Retrieved 2026-05-15 · Primary event source for Regensburg, OTH venue, and Rabbit Chaos Adventure badge-linked challenges.
Easterhegg 2024 Wiki: Feedback
Retrieved 2026-05-15 · Source for field feedback, communication issues, and attendee badge praise.
Easterhegg 2024 Wiki: hardware-hacking-area
Retrieved 2026-05-15 · Primary source for hardware-hacking area context.
Entropia: GPN17
Retrieved 2026-05-15 · Primary event context for dates, location, and GPN17 framing.
Entropia: GPN20
Retrieved 2026-05-15 · Primary event-context source for GPN20.
Entropia GPN17 wiki: Badge
Retrieved 2026-05-15 · Primary source for hardware specs, software behavior, ROM store, API surface, CAD, and add-ons.
Entropia GPN17 wiki: Hack the Badge
Retrieved 2026-05-15 · Primary source for challenge and prize context.
Entropia GPN20 wiki: Fahrplan
Retrieved 2026-05-15 · Schedule context for GPN20.
Entropia GPN20 wiki: Feedback
Retrieved 2026-05-15 · Primary public feedback source for badge-issue queue impact.
Entropia GPN20 wiki: Trolle/en
Retrieved 2026-05-15 · Primary source for the non-electronic printed, laminated badge workflow.
Entropia GitHub: gpn17-badge
Retrieved 2026-05-15 · Public source repository for the badge.
Entropia wiki: GPN23
Retrieved 2026-05-15 · Primary event source for GPN23 timing and Karlsruhe venue context.
Entropia wiki: GPN23 Awareness
Retrieved 2026-05-15 · Source for names/pronouns written on badges and respectful use of those visible identity fields.
Entropia wiki: GPN23 FAQ
Retrieved 2026-05-15 · Source for lanyard reuse guidance, badge pickup context, and capacity/registration rather than classic ticketing.
Entropia wiki: GPN23 Orga
Retrieved 2026-05-15 · Source naming the Badges area and responsibility for participant name signs.
Entropia wiki: GPN23:HowTo/Badges
Retrieved 2026-05-15 · Primary production source for badge format, paper weight, lanyards, markers, badge punching, hidden-pattern design notes, and used counts.
Full Disclosure / ERNW: TROOPERS12 Call for Papers
Retrieved 2026-05-15 · Post-event lineage source that references the previous year's badge.
GitHub: EH21 Gerbers
Retrieved 2026-05-15 · Manufacturing source folder for separate badge, head, hood, arm, and back board Gerber ZIP packages.
GitHub: EH21 Media
Retrieved 2026-05-15 · Media source folder for RCA talk PDF, booklet PDF, audio, PCB image, and story/challenge materials.
GitHub: EH21 Parts
Retrieved 2026-05-15 · Parts-export source for ordered badge components, including LED, battery-holder, NE556, capacitor, and other SMD line items.
GitHub: EH21 Schematics
Retrieved 2026-05-15 · Schematic source folder for separate badge, head, hood, arm, and back board PDFs.
GitHub: EH21 backCover
Retrieved 2026-05-15 · Mechanical add-on source for the 3D-printable back cover, switch cap, optional LED rail, and assembly notes.
GitHub: Hack-a-Day/2024-Supercon-8-Add-On-Badge
Retrieved 2026-05-15 · Upstream repository source for the reused Simple Add-On badge hardware/software lineage, README, and public resource tree.
GitHub: Hack-a-Day/Vectorscope
Retrieved 2026-05-15 · Primary repository for MicroPython firmware, hardware package, BOM, Gerbers, drill files, and board-source status.
GitHub: eh21badge
Retrieved 2026-05-15 · Public source repository for RCA badge files, challenge story, schematics, Gerbers, parts exports, media, and 3D-print files.
GitHub: flummer/35c3-badge
Retrieved 2026-05-15 · Public design-file repository linked from the primary project page.
GitHub: fuccs-shitty-addon-hw
Retrieved 2026-05-15 · Source repository for the Fuccs Shitty Addon.
GitHub: tr19-badge-hw-public
Retrieved 2026-05-15 · Primary design-file repository for the TROOPERS19 badge.
GitHub: tr23-badge-hw
Retrieved 2026-05-15 · Public hardware-design repository for the TROOPERS23 badge.
GitHub: troopers-2023-firmware
Retrieved 2026-05-15 · Public Badge.Team firmware repository for the TROOPERS23 badge.
GitLab: tidklaas/hip-badge
Retrieved 2026-05-15 · Public design-file repository identified from the RIOT OS board documentation.
Great Scott Gadgets: My First Look at rad1o Badge
Retrieved 2026-05-15 · Michael Ossmann perspective on HackRF relationship.
HOPE Wiki: HiP badge photo metadata
Retrieved 2026-05-15 · Image-provenance source showing a real badge photo and copyright metadata while also leaving the catalogue without a reusable license basis.
Hackaday: 2011 CCC R0ket Badge
Retrieved 2026-05-15 · Secondary summary of hardware expectations and early public interest.
Hackaday: 2023 Hackaday Supercon Badge: Welcome to the Vectorscope
Retrieved 2026-05-15 · Source for RP2040/Pico, AK4619 ADC/DAC, analog input/output concept, scope and waveform-generator pins, prototyping area, and badge design intent.
Hackaday: CCCamp 2015 Rad1o Badge
Retrieved 2026-05-15 · Hardware overview and HackRF/GNU Radio compatibility.
Hackaday: Hackaday Berlin: The Badge, Workshops, And Lightning Talks
Retrieved 2026-05-15 · Primary Hackaday source for the Berlin-reskinned Voja Antonic badge, Supercon compatibility, hardware-tweak caveat, pre-event hacking pointers, and Saturday-night badge-hacking ceremony.
Hackaday: Hackaday Europe 2025 Tickets On Sale, And CFP Extended Until Friday
Retrieved 2026-05-15 · Primary source for Berlin dates, MotionLab venue, badge-hacking, SAO showpiece badge framing, revamped firmware, included SAOs, and through-SAO flashing statement.
Hackaday: Hackaday Europe 2025: Speaker Schedule And Official Event Page
Retrieved 2026-05-15 · Source for official schedule, sold-out context, live stream note, and Saturday Badge Hacking Ceremony slot.
Hackaday: Hackaday Europe 2025: Speakers, Lightning Talks, And More!
Retrieved 2026-05-15 · Source for the four Supercon Add-On Contest winning entries being included in the Hackaday Europe schwag bag.
Hackaday: Hands-On: CCCamp2019 Badge Is A Sensor Playground Not To Be Mistaken For A Watch
Retrieved 2026-05-15 · Field report for late badge assembly, ECG pad kit, developer workshop, RTC/watch caveat, MicroPython and Hatchery notes.
Hackaday: Nixie Tube Conference Badge
Retrieved 2026-05-15 · Main public source for badge behavior, puzzle framing, LANyard hardware, capacitive touch, and hack pads.
Hackaday: The 2022 Supercon Badge Is A Handheld Trip Through Computing History
Retrieved 2026-05-15 · Lineage source for the original down-to-the-metal retrocomputer badge framing and planned Gerber, emulator, and PIC code release context.
Hackaday: The 2024 Hackaday Supercon SAO Badge Reveal
Retrieved 2026-05-15 · Upstream lineage source for Pico W hardware, six SAO slots, individually accessible GPIO, dual I2C buses, starter petals, MicroPython, CH32V003, and repository release.
Hackaday.io: GPN17BadgeHiFi-Bodge
Retrieved 2026-05-15 · Source for the HiFi-Bodge audio add-on.
Hackaday.io: Hackaday Berlin 2023
Retrieved 2026-05-15 · Primary event source for Berlin, Germany, March 25-26, 2023, MotionLab.Berlin, and event identity.
Hackaday.io: Hackaday Europe
Retrieved 2026-05-15 · Official event source for Hackaday Europe 2024 at MotionLab.Berlin and the scheduled badge-hacking ceremony.
Hackaday.io: Hackaday Europe 2025
Retrieved 2026-05-15 · Official event source for Hackaday Europe 2025 and its badge/add-on resource hub.
Hackaday.io: Hackaday Europe 2025 project
Retrieved 2026-05-15 · Project-page source for badge and add-on resource framing.
Hackaday.io: v0j4 Project Details
Retrieved 2026-05-15 · Project source for 4-bit datapath, 12-bit instruction words and addresses, memory layout, registers, GPIO, 16x8 LED raster screen, serial mention, SAO port, and PIC24 implementation.
Hacking in Parallel: Hacking in Parallel 2022 //// Berlin
Retrieved 2026-05-15 · Primary event source for dates, venue, Berlin location, organizing communities, ticketing, and workshop-stage infrastructure.
Hacking in Parallel schedule: Get started with hacking the badge
Retrieved 2026-05-15 · Primary badge-use source for the lanyard device, laptop/USB development workflow, and badge-hacking workshop at HiP.
Hackover: 100 Jahre Hackover
Retrieved 2026-05-15 · Primary source for Hackover 2013 ticket contents, including the assembled badge PCB.
Hackover: Die Badge-Entwicklung schreitet voran
Retrieved 2026-05-15 · Primary source for the 2013 badge feature list: ARM processor, 2.4 GHz radio, LCD, USB, and buttons.
Hackover archive: Badge-Firmware
Retrieved 2026-05-15 · Archive source for firmware and schematic clone URLs and post-event hacker documentation caveat.
Insinuator: Troopers 19 Badge Hardware
Retrieved 2026-05-15 · Primary source for hardware specs, design history, add-on context, and production caveats.
Jana Marie Hemsing: GPN17 badge
Retrieved 2026-05-15 · Creator portfolio source for GPN17 badge and add-on design context.
Jana Marie Hemsing: amg8834-GPN17badge
Retrieved 2026-05-15 · Surviving public source for the AMG8834 thermal-camera add-on board.
PID.codes: 1209:2020 Badge.Team
Retrieved 2026-05-15 · Primary public evidence that Troopers 2022 badges were tied to the Badge.Team platform.
RIAT Institute / GitHub: CDC Badge hardware LICENSE
Retrieved 2026-05-15 · Primary CERN-OHL-P-2.0 license source for the CDC Badge hardware project; it does not automatically license every unrelated event mark or media asset.
RIAT Institute / GitHub: CDC Badge v1.1
Retrieved 2026-05-15 · Versioned public v1.1 CDC Badge release. It is source-release evidence, not a confirmed physical 39C3-unit firmware or bill-of-materials mapping.
RIAT Institute / GitHub: Firmware Checklist
Retrieved 2026-05-15 · Primary configuration-caution source for BQ25895 charging/power settings, USB interaction, full power-off, and TROPIC01 sleep handling.
RIAT Institute / GitHub: riatlabs/cdc-badge
Retrieved 2026-05-15 · Primary open-hardware source for the ESP32-S3/TROPIC01 board, e-paper/keypad/expansion design, KiCad fabrication material, linked firmware, and project-level licensing.
RIOT OS documentation: HiP Badge
Retrieved 2026-05-15 · Board-support source for exact ESP32-C3FH4AZ, SAO/I2C, UART, WS2812B, USB-C Serial/JTAG, button, NFC EEPROM, flashing, and hardware-bug claims.
Rabbit Radio: Easterhegg
Retrieved 2026-05-15 · Field-report source for Tobias Dorn credit, badge-kit framing, challenge-unlocked parts, and social/physical scavenger-hunt behavior.
Simon Schoar: ehaserl
Retrieved 2026-05-15 · Project source identifying eHaserl as the Easterhegg 2010 conference badge organized by the Munich CCC.
TROOPERS: TR23 Badge Retrospective
Retrieved 2026-05-15 · Official retrospective source for badge story, lore, and post-event framing.
TROOPERS: TROOPERS11
Retrieved 2026-05-15 · Official event archive for the Heidelberg conference edition.
TROOPERS: TROOPERS19
Retrieved 2026-05-15 · Official event context.
TROOPERS: TROOPERS22
Retrieved 2026-05-15 · Official event context for TROOPERS22.
TROOPERS: TROOPERS23
Retrieved 2026-05-15 · Official event context for TROOPERS23.
TROOPERS / Flickr: TROOPERS11 official Flickr set
Retrieved 2026-05-15 · Photo archive for the event context.
Thomas Flummer: 35c3 badge assembly instructions
Retrieved 2026-05-15 · Primary assembly source for component placement, modified push buttons, BC817 transistors, LED/resistor counts, two-AA power, SAO connector behavior, and rework details.
Thomas Flummer: 35c3 badge for Labitat
Retrieved 2026-05-15 · Primary project-owner source for the unofficial Labitat badge, no-official-DEF-CON-style-badge statement, SR-latch theme, reverse-mount LED construction, and GitHub design-file pointer.
Thomas Flummer: My unofficial 36c3 badge
Retrieved 2026-05-15 · Primary project-owner announcement for the unofficial 36C3 badge, kits at Congress, and open controller experimentation.
Thomas Flummer: Unofficial 36c3 badge
Retrieved 2026-05-15 · Primary project-owner technical source for the kit contents, WS2812B LED string, controller pads, Adafruit Feather M4 mounting example, and CircuitPython NeoPixel snippet.
Un-Hack-Bar: Die Easterhegg, der Chaos Computer Club und was das alles mit der UN-Hack-Bar zu tun hat
Retrieved 2026-05-15 · Participant source for CTF result, badge add-ons, and soldering note.
Wikimedia Commons: File:Berlin, Mar-2023 (52930401548).jpg
Retrieved 2026-05-15 · Image-provenance source for the original Mitch Altman conference photo, badge identification, CC BY-SA 2.0 license, Flickr source, and FlickreviewR confirmation.
blog.dasrecht.net: Easterhegg 21
Retrieved 2026-05-15 · Attendee source for badge repository link and SMD soldering in the hardware-hacking area.
card10 project: card10
Retrieved 2026-05-15 · Primary facts for event, name, and sensors.
flow3r GitLab: flow3r apps
Retrieved 2026-05-15 · Primary app-index publishing and versioning workflow.
flow3r documentation: Badge Net
Retrieved 2026-05-15 · Official network add-on layer over Badge Link.
flow3r documentation: I2C / Qwiic Expansions
Retrieved 2026-05-15 · Official Qwiic / STEMMA QT expansion documentation.
flow3r documentation: License
Retrieved 2026-05-15 · Official firmware authorship and license statement.
flow3r documentation: Updating firmware
Retrieved 2026-05-15 · Official update paths, including webflash, USB mass storage, and built-in WiFi updater.
flow3r documentation: Welcome to flow3r's documentation
Retrieved 2026-05-15 · Current official documentation index for firmware, app programming, networking, audio, and expansion docs.
heise online: Nachschau: Hackaday Europe in Berlin
Retrieved 2026-05-15 · Field-report source for Berlin reuse, soldering/workshop activity, case/add-on culture, and badge-hack presentations.
krim404 / GitHub: CDC Badge OS README
Retrieved 2026-05-15 · Primary public firmware-status source for the documented secure-element application surface and explicit early-beta/data-loss/security-critical-use warnings.
krim404 / GitHub: krim404/cdc-badge-os
Retrieved 2026-05-15 · Public post-event GPL-3.0 firmware source for CDC Badge v1.0/v1.1 hardware. Its later source availability is not treated as a 39C3 deployment ledger.
media.ccc.de: CCCamp 1999 recordings
Retrieved 2026-05-15 · media.ccc.de archive proving the event lineage and public talks for the first Chaos Communication Camp.
media.ccc.de: CCCamp 2003 recordings
Retrieved 2026-05-15 · media.ccc.de archive proving the event lineage and public talks for Chaos Communication Camp 2003.
media.ccc.de: How to grow a flow3r
Retrieved 2026-05-15 · Camp talk listing schneider, timonsku, and q3k as speakers.
media.ccc.de: How we bodged the Badge
Retrieved 2026-05-15 · Talk source for development-story and speaker credits.
media.ccc.de: Inside Sputnik & OpenBeacon
Retrieved 2026-05-15 · Recording source for the Camp 2007 talk.
media.ccc.de: Lötworkshop-Vortrag
Retrieved 2026-05-15 · Talk source for the surprise-badge framing and eHaserl lore.
media.ccc.de: Rabbit Chaos Adventure: Closing
Retrieved 2026-05-15 · Talk source for RCA story, badge, and puzzle resolution.
media.ccc.de: The card10 badge: Two years of evolution
Retrieved 2026-05-15 · Post-event lifecycle source for firmware, Hatchery, BLE, companion app, sensor, and reuse evolution.
media.ccc.de: The rad1o
Retrieved 2026-05-15 · Camp 2015 talk listing Sec, RFguy, and schneider as speakers for hardware, software, and creation-history context.
media.ccc.de: card10 Badge
Retrieved 2026-05-15 · Primary talk source for badge purpose, biosensors, BLE, extension space, and camp app/interh4cktion workflow.
media.ccc.de: flow3r Badge
Retrieved 2026-05-15 · C3VOC Frag die Teams interview listing schneider, Sec, and Andi.
media.ccc.de: r0ket
Retrieved 2026-05-15 · Camp 2011 talk source listing kiu, s, and Stefan 'Sec' Zehl as speakers.
media.ccc.de: r0ket++
Retrieved 2026-05-15 · 28C3 follow-up talk listing lilafisch and Stefan 'Sec' Zehl.
muCCC: Badge Frames
Retrieved 2026-05-15 · Current muCCC history note tying eHaserl into the club's camp-badge lineage.
muCCC / brezn.muc.ccc.de: EH2010 badge source tree
Retrieved 2026-05-15 · Software source checkout path documented by the EH2010 badge wiki.
pretalx / c3voc: Hacking in Parallel Berlin 2022 schedule
Retrieved 2026-05-15 · Official schedule source for the Dec. 27-30 event days and venue-room context.
rad1o wiki: Antennas
Retrieved 2026-05-15 · Primary source for internal antenna tuning, external antenna/SMA workflow, and soldering warnings.
rad1o wiki: Laser Cut Enclosure at 32C3
Retrieved 2026-05-15 · Primary case add-on source for 32C3 case kits, DXF files, SMA clearance, simple laser-cut cases, and 3D enclosure links.
rad1o wiki: SDR Software for using the badge
Retrieved 2026-05-15 · Primary software guide for Linux, Windows, Mac, Android, GNU Radio, Gqrx, SDR#, RF Analyzer, udev, and HKRF-OLD caveats.
rad1o wiki: Welcome to the CCCamp 2015 rad1o Badge Wiki
Retrieved 2026-05-15 · Primary wiki entry for HOWTOs, firmware-update note, HackRF-compatible SDR statement, and sitemap.
rad1o wiki: firmware:releases
Retrieved 2026-05-15 · Primary firmware revision history from REV 01 through REV 05.
rad1o wiki: rad1o hardware overview
Retrieved 2026-05-15 · Primary hardware overview for RF path, Wimax transceiver, mixer, 2.5 GHz PCB antenna, LCD, joystick, audio connector, and dual Micro-USB behavior.
rad1o wiki: troubleshooting
Retrieved 2026-05-15 · Primary troubleshooting record for flash station, HackRF boot modes, USB ID compatibility, autosuspend, soldering, battery, and antenna issues.