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.
Tag dossier
USB-C
Badge records tagged with USB-C, across Germany, Sweden, Ukraine, United Kingdom, United States.
NoNameCon 2020 Air Quality Badge
Ukrainian ESP32 air-quality badge and CTF platform
A Ukrainian NoNameCon 2020 electronic badge by TechMaker, redesigned as a custom ESP32-WROOM-32D board with optional BME680 air-quality sensing, dual OLED displays, joysticks, touchpads, WS2812 LEDs, USB-C programming, and embedded-systems CTF tasks.
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.
OSHCamp 2023 Badge
WiFi room-sensor name badge
A WiFi badge for Open Source Hardware Camp 2023, designed as a name badge, solder-paste workshop board, USB-UART adapter, qwiic/STEMMA QT sensor host, and post-event Tasmota room sensor.
SEC Youth Challenge 2023 Flux Decoder Badge
DEF CON 31 youth-challenge ATtiny1614 LED badge
The Flux Decoder was a Social Engineering Community Youth Challenge badge for DEF CON 31, preserved through a public repository with KiCad board files, schematic material, and Arduino-style firmware for an ATtiny1614-powered flux-capacitor LED badge.
CactusCon 12 Badge
Project NeoRogue ESP32-S3 badge archive
The CactusCon 12 badge is preserved through Badge Pirates' public CactusCon-12 repository, which includes KiCad CAD files, Gerbers, BOM exports, QA code, art assets, reference documents, and ProjectNeoRogue front/back raster outputs for the 2024 CactusCon badge.
Security Fest 2024 Feskekôrka Piano Badge
Music-and-airship CTF building badge
A Security Fest 2024 badge shaped around Gothenburg's Feskekôrka fish-market landmark, with piano/touch-key gameplay, an airship story CTF, LEDs, USB-C serial interaction, and documented attendee/speaker/crew variants.
Aerospace Village DC33 ADS-B Badge
Linux ADS-B badge with Winglet OS 2.0
Aerospace Village's DEF CON 33 badge record documents the DC32 ADS-B badge hardware returning for DC33 with new software, Winglet OS 2.0 release artifacts, DC33 SAO support, and an ADS-B accessory ecosystem.
Aerospace Village DC33 Aranya ESP32 Badge Board
SpiderOak workshop ESP32-S3 messaging board
Aerospace Village's DEF CON 33 workshop schedule documented a SpiderOak Aranya hands-on workshop where up to 20 attendees received free ESP32 badge-board hardware, flashed a distributed wireless messaging application, and kept the board afterward.
CactusCon 14 Badge
Badge Pirates ESP32-S3 hardware archive
The CactusCon 14 badge is preserved through Badge Pirates' public CC14 repository, which publishes KiCad design files, schematic PDF, interactive BOM, Gerbers, STEP exports, 3D-printable enclosure parts, and art assets for the 2026 CactusCon conference badge.
DEF CON 34 Badge
Planned electronic Human badge with SAO specs
DEF CON's official preregistration copy guarantees an onsite DEF CON 34 Human badge, and the official media server publishes DC34 SAO electrical and mechanical specifications that make the 2026 badge a source-backed planned electronic-badge record.