Tag dossier
Badge records tagged with I2C, across Australia, France, Germany, United Kingdom, United States.
NodeMCU-based electronic badge and hardware-interface tool
The BUSSide was the BSides Canberra 2018 electronic badge, issued to 2,000 delegates and documented through official BUSSide pages, CSides talk notes, GitHub Pages documentation, and a public source repository.
ESP32 MicroPython badge with 8x32 LED matrix and twelve minibadge spots
The SAINTCON 2018 ESP32 Badge was an electronic conference badge built around a LOLIN D32 / ESP32 module running MicroPython, an 8x32 LED matrix, three buttons, a rechargeable battery, Wi-Fi configuration behavior, Hacker Challenge score display, and twelve minibadge spots.
ATtiny2313 Blade Runner badge with ESP32CAM add-on path
LayerOne 2019's electronic badge used a Blade Runner / Voight-Kampff theme around a small ATtiny2313 LED-and-button badge, with Hackaday documenting optional add-on boards including an ESP32CAM eye/face-recognition module for the badge's test-of-humanity behavior.
Official and unofficial MiniBadges documented by the archived 2021 SAINTCON page
SAINTCON 2021 is represented here by its archived MiniBadge collection page, which documents in-person registration/status MiniBadges, community and challenge MiniBadges, soldering and puzzle badges, sponsor or booth-distributed badges, and a separate unofficial badge section.
Community, event, contest, and personal MiniBadges documented by the 2023 data export
SAINTCON 2023 is represented here by its public MiniBadge ecosystem: the official 2023 FAQ documents MiniBadge popularity and attendee trading, while the community MiniBadge Wiki export preserves year-specific personal, event, community, and contest badge records.
Six-port Pico W SAO hub
The Supercon 8 official badge used a Raspberry Pi Pico W and six SAO ports as an I2C playground, bundling touchwheel, LED petal matrix, blank protoboard, and CH32V003 I2C proto-petal add-ons with MicroPython examples.
Official and submitted MiniBadges documented by the 2024 trading build-guide trail
SAINTCON's 2024 MiniBadge Trading page documents an official trading area and a public build-guide link covering submitted MiniBadges that attendees designed and brought to the conference, including official MiniBadges.
Electronic Cats OLED and RF-detector badge
The 44CON 2025 badge is a public Electronic Cats hardware and firmware project that can run with a CH32-style shield for an OLED mini-game or with an ESP32 Wemos D1 module plus optional buzzer, MT3608 boost converter, AD8317 RF detector, and add-on board.
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.
Planned electronic Human badge with SAO specs
DEF CON's official preregistration copy guarantees an onsite DEF CON 34 Human badge, an official badge-alert post says DEF CON 34 is an electronic badge year, and the official media server publishes DC34 SAO electrical and mechanical specifications that make the 2026 badge a source-backed planned electronic-badge record.
French ESP32-C6 B.A.D.G.E. with WiFi AP and BLE challenges
A French THcon 2026 official electronic badge documented by the official B.A.D.G.E. page as an ESP32-C6 board with a WiFi access point, an I2C OLED at address 0x3C, and two badge challenges built around a BLE padlock and a one-time-password flow, for the May 5-6, 2026 tenth edition in Toulouse.