Year
Hacker conference badges documented for 2025, sorted by country.
Artistic sonic RP2040 badge
An official Ekoparty 2025 electronic badge record for a customizable artistic and sonic badge with RP2040 control, I2S DAC audio, headphone and speaker amplification, rechargeable USB-C power, NeoPixel backlight LEDs, resistive touch sensors, sequencer, sample playback, synth behavior, and effects.
Standalone binary-entry CTF badge with tactile buttons, LEDs, and hidden hardware challenge
BSides Adelaide 2025's second Wombat badge is source-backed by Hackerware, Hackster, and attendee challenge analysis: it kept the MS51FB9AE/CR2032 LED badge line but added onboard CTF controls, seven official challenge LEDs, binary flag entry, and an unannounced hardware challenge.
Queensland ticket-included badge with electronic-badge prospectus evidence
BSides Brisbane 2025 ticketing documented a cool badge for Standard and VIP attendees, while the sponsorship prospectus offered electronic badge design and build for 500 delegates as a separate supporter item.
Tenth-anniversary Brisbane conference credential
CrikeyCon X is represented as an Australian identity-badge record because the official schedule told attendees they could pick up their badge early before Saturday entry, while the Humanitix and archive pages establish the March 22, 2025 Brisbane event context.
ESP32-C3 conference and CTF badge with SAO and IR pairing
NorthSec 2025's official badge repository documents an ESP32-C3-WROOM-02-N4 badge with eighteen NeoPixel RGB LEDs, five buttons, an IR pairing connector, two SAO v1.69bis connectors, USB-C or AAA battery power, and separate conference/CTF firmware builds.
Limited Colombian NFC hardware-hacking badge
A conservative Colombian DragonJARCON 2025 record for an optional electronic hardware badge and a separate DragonJARCON 2025 NFC hacking badge raffle limited to 100 units.
NFC treasure-hunt and LED badge
The second electronic DORS/CLUC badge, built around NFC tag hunting, badge-to-badge interaction counters, LED-display modes, USB configuration and passthrough behavior, a simple game, open source files, and a public production all-nighter writeup.
Czech Security BSides PCB badge with attendee chip challenges
A source-backed Czech Security BSides electronic badge record: the official BSides Prague 2025 schedule page announced a PCB badge powered by multiple processors, and a first-hand organizer retrospective documents the first generation of electronic badges, attendee chips, challenge XP, interactive panels, and nickname display.
LoRa and Meshtastic badge
A circular ESP32-C3 badge focused on LoRa, Meshtastic, WiFi, BLE, RGB LEDs, external antenna use, and expansion connectors.
Modular cyberpunk watch-style badge
An electronic badge created for 39C3 as a modular, solderable watch-style device. The project was designed to be reconfigurable with interchangeable daughter boards (called shards) for different use cases.
Assembly-created Hub achievement badges
The 39C3 info pages documented a Hub badge system where participants could collect assembly-created digital badges via redeem tokens, profile assignment, QR codes, and challenge or visit workflows.
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.
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.
Indian Security BSides badge-sponsor and soldering-village record
A conservative source-backed BSides Agra 2025 badge record from the archived official site and official social trail, documenting an IOTSRG Badge Sponsor role, all-attendee collectible-badge framing, and a hands-on soldering village without asserting an unrecovered final circuit.
Indian hands-on electronic badge village kit
A conservative VULNCON 2025 Solder & Spark Badge Village record for the official IoTSRG-hosted activity where participants built an electronic badge from a kit with PCB, components, soldering tools, battery, switch, and testing time.
Israeli limited hardware CTF badge
BSidesTLV's official 2025 badge page documents The Infinity Glove, a limited pre-order electronic badge sold with BSidesTLV 2025 entry, picked up on site, and framed as a custom-designed hardware CTF with hidden puzzles and badge-holder-only stages.
PY32F030 OLED and NeoPixel badge with role variants and Metro add-on
BSides CDMX 2025's Electronic Cats repository documents a Security BSides CDMX badge built around a Puya PY32F030F28U6TR, NeoPixels, OLED display, two AAA battery holder, Shitty Addon connector, role-specific KiCad hardware variants, a Metro add-on, public firmware, release HEX files, and BOM assets.
RV1106 Linux badge with add-on and embedded-Linux hacking path
BugCON 2025's Electronic Cats badge repository documents an open-hardware RV1106G3 Linux badge with ARM Cortex-A7, RISC-V MCU, NPU, ISP, GPIO, MIPI CSI, UART, SPI, I2C, USB hub, Ethernet path, WS2812E NeoPixels, 18650 battery support, Python scripting, and a PY32F002 add-on board.
ESP32-S3 Minino badge for BLE, Wi-Fi, OLED, and badge apps
HackGDL 2025's official Electronic Cats event badge was an ESP32-S3 Minino-platform badge with BLE, Wi-Fi, USB-C, four buttons, three NeoPixels, an OLED screen, buzzer, three-AAA battery holder, SAO connector, case, and ready-to-use badge apps.
Badge-team workflow and challenge badge record
A HackerHotel 2025 badge record anchored by the public badge talk, preserving badge-team workflow, challenge integration, production handoff, and lessons learned rather than unsupported component-level details.
Capable hardware, difficult camp history
The Dutch 2025 camp badge mixed ambitious hardware with late distribution, LoRa caveats, battery-safety controversy, and a documented pre-event team conflict.
ESP32-C3 pukeko badge with OLED, RGB LEDs, Rust VM, and Minecraft server
CHCon 2025's attendee badge was a custom circuit-board badge with an ESP32-C3, SSD1306 128x64 OLED, 24 WS2812 RGB LEDs, USB Serial JTAG shell access, bare-metal Rust firmware, a stack-based pattern VM, and a Minecraft 1.21.4 challenge server.
Laser-etched recycled paper badge with wildflower seed mixture
Kawaiicon 2025's official badge page documents the Kawaiicon 3 badge as a laser-etched and cut recycled-paper identity artifact made with a wildflower seed mixture and handmade by the Papermill in Whangarei.
Norwegian Security BSides SolaSec duck-shaped CTF badge
A source-backed Norwegian Security BSides electronic badge record: Noroff's post-event report documents a custom SolaSec electronic duck badge with seven LED challenge indicators, the official recordings page preserves Caleb Davis's Sykt Badge talk, and Cryptax's CTF write-up documents RP2040/MicroPython behavior, USB serial access, Wi-Fi AP setup, and on-badge web challenges.
Philippine electronic badge and Type-B fallback record
A ROOTCON 19 badge-distribution record documenting electronic badges distributed first-come at on-site check-in, guaranteed electronic badges for Human+ and Blackcard attendees, and a simpler non-electronic Type-B badge fallback.
Portuguese Security BSides electronic badge with badge-sponsor trail
A source-backed Portuguese Security BSides electronic-badge record: the official BSidesLisbon 2025 about page says the edition would have an electronic badge, the sponsors page lists a Badge Sponsor section for BitSight, and Eventbrite anchors the November 13-14, 2025 Auditorio FMD-UL conference.
Singapore RP2350 and ECP5 FPGA challenge badge
NUS Greyhats' public GreyBadge archive identifies the 2025 GreyCTF badge as GreyMecha/Army, with RP2350-side CircuitPython firmware, KiCad hardware files, an ECP5U_25 FPGA schematic, GC9A01 SPI display, Li-ion power-path circuitry, summit UF2/filesystem releases, and named challenge apps.
South African BSides badge-sponsor identity artifact record
BSides Cape Town's official 2025 sponsorship page lists a dedicated Badge Sponsor slot, while the official Quicket page anchors the December 6, 2025 Lagoon Beach Hotel & Spa event and swag-ticket context.
South Korean closed-conference entry badge availability record
Zer0Con's official 2025 page places the closed vulnerability-research conference at Fairmont Ambassador Hotel Seoul on April 10-11, 2025, and POC Security's official update trail described a Zer0Con2025 Entry badge with 100 available seats.
Taiwanese hacker-pet PCB badge with Red-vs-Blue tower play
HITCON 2025's official PCB Badge guide and public technical repository document an attendee PCB badge with a hacker-pet mode, built-in games, pedometer scoring, cross-board interaction, BadUSB behavior, Red-vs-Blue tower-capture play, and released STM32CubeIDE-oriented firmware/PCB project materials.
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.
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.
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.
Four-challenge serial CTF badge
The AvengerCon IX electronic badge carried a built-in four-challenge CTF, coin-cell blink behavior, BAT CON battery jumper, micro-USB connection, CP2102 USB-to-UART serial path, and post-event unlock codes published by the official badge page.
Afro-pick commemorative village badge
Blacks In Cybersecurity's official BIC Pick page documents a DEF CON 33 village badge designed as a red, green, and gold Afro pick celebrating the five-year anniversary of the BIC Village.
ESP32-WROVER MicroPython conference e-badge
BSides Fort Wayne 2025 had an electronic conference badge documented by a first-hand badge-team writeup and a public organization repository, with ESP32-WROVER hardware, dual SPI display headers, seven WS2812B LEDs, accelerometer, buzzer, LiPo charging, MicroPython firmware, and badge CTF challenge apps.
Badge Pirates ESP32 touchscreen conference badge
The BSidesKC 2025 badge was a Badge Pirates fully electronic conference badge documented through public production and fulfillment updates: 250 fully assembled ESP32 badges from PCBWay with 3.2 inch touch screens, Wi-Fi, SD card slots, customs delays, tariff impact, and post-event pickup or shipping handling.
Pacific Hackers and Hackerwares HCV badge
The BSidesSF 2025 Hardware Challenge Village badge is a source-backed badge designed specifically for the village's electronic tinkering, programming, and competitive CTF challenge.
Meshtastic-ready LilyGO T-Deck S3 badge
The BSidesSLC 2025 E-Badge is a source-backed electronic event badge built on the LilyGO T-Deck S3 and advertised by BSidesSLC with keyboard, trackball, 25 LEDs, ESP32-S3, LoRa support, Meshtastic readiness, and customization potential.
Compute Module 5 medical-AI badge
Biohacking Village's DEF CON 33 Distiller BHV badge was a CM5-based medical-AI badge built with SolaSec and PamirAI, combining local voice/chat interaction, e-ink UI, physical buttons, colored LEDs, battery power, and public BHV software branches.
Four-button, four-LED challenge badge
Bug Bounty Village's BBV Badge 2025 was a DEF CON 33 village challenge badge with four buttons, four corresponding LEDs, and a reward path for attendees who lit all four LEDs.
Badge Pirates CC13 ESP32-S3 badge archive
The CactusCon 13 badge is preserved through Badge Pirates' public CactusCon13 repository, which publishes KiCad CAD files, Gerber output, outer-board variants, 3D-print assets, ESP32-S3 reference material, and a MIT-licensed source archive for the 2025 CactusCon badge.
Layered-lens physical badge
An official DEF CON 33 non-electronic physical badge by Mar Williams, built around layered art, 3D image interactions, lenses, clue spotting around the con, and an Arts & Entertainment booth badge challenge.
ESP32-S3 LoRa mesh communicator badge
The 2025 Hackaday Supercon Communicator Badge is a handheld mesh-chat badge with ESP32-S3, 8 MB PSRAM, 16 MB flash, a wide LCD, custom Solder Party keyboard, SX1262 LoRa radio, SMA antenna path, LiPo charging, SAO v2 connector, LVGL MicroPython firmware, public hardware files, and user-app examples.
RP2350A ICS security badge tool
The ICS Village Badge for DEF CON 33 was a FREE-WILi and Intrepid Control Systems sponsored hands-on industrial-control-security badge tool with RP2350A control, ESP32-C6 Wi-Fi, sensors, GUI support, USB API, WASM scripting, and Build-A-Badge customization software.
Raspberry Pi Pico racing badge
Kernelcon's 2025 Race Condition badge was a Raspberry Pi Pico electronic badge with a TM1637-driven seven-segment display, three-AAA power, seven addressable RGB LEDs, buzzer, track-racing modes, reaction test, synthesizer, achievements, and CTF flag unlocks.
Electronic Cats OLED and nRF24L01 village badge
Electronic Cats' public La Villa Hacker 2025 Badge repository documents a village badge with OLED display, nRF24L01 radio, two-AAA power, Shitty Addon connector, KiCad hardware files, firmware sources, and a released VillaHacker.hex binary.
RP2040 and iCE40 glitching badge for hardware hacking
LayerOne 2025's GLiTCh BadgE was a conference electronic badge and hardware-hacking platform centered on an RP2040, iCE40 FPGA, voltage glitching, crowbar control, SWD, AVRISP, analog monitoring, multiple USB modes, and CLI-driven experiments.
Limited LoRa mesh badge for DEF CON 33 pickup
Lonely Hackers Club's Meshtastic Badge 2025 was a limited 50-unit community badge offered for DEF CON 33 pickup, built around a Heltec Wireless Tracker V1.1 LoRa radio board, preconfigured LHC channel behavior, and attendee pairing workflows.
Pico 2 maritime bus and voltage-glitching badge
The Differential Destroyer was Maritime Hacking Village's official DEF CON 33 badge, published as an OSHWA-certified open hardware platform for maritime bus work, scripting, signal interaction, and experimental voltage glitching.
Unofficial badgelife robot-fighting badge set
NilbinSec's Hack 'Em Crack 'Em Robots was a DEF CON 33 badgelife release announced in the DEF CON #Badge Life forum, sold as a limited full-size badge set through RENXCHANGE, and listed in the DC33 community schedule as a badge drop.
Voodoo Heart electronic badge and Learn to Solder artifact
NolaCon 2025's Patches badge continued the conference's Learn to Solder badge tradition, with the official badge page presenting Patches as a customizable Voodoo Heart-series character whose limbs, LEDs, and personal flair could make each build unique.
Battery-less ZBD shelf-label badge with per-attendee firmware images
PhreakNIC 26's official electronic badge reused dead-battery ZBD 55c-RB electronic shelf labels as 3D-printed pager-styled badges with static 240x96 one-bit displays, QR-code-backed attendee customization, and on-site reflashing.
Official limited Custom Hack.RVA Electronic badge package record
The RVAsec 2025 badge is seeded from the official RVAsec 14 registration page, which listed a guaranteed hotel package with a custom RVAsec challenge coin and a Custom Hack.RVA Electronic badge while supplies lasted. No public 2025 hardware repository, firmware tree, schematic, BOM, or final badge photo provenance was recovered in this pass.
DEF CON 33 RF badgelife badge with dual CC1101 radios
Rabbit-Labs and The Pirates' Plunder Badge was an independent DEF CON 33 collaboration badge that debuted at the Rabbit-Labs vendor booth, with public firmware options, an ESP32-S3-N16R8, two CC1101 433 MHz radios, an OLED, joystick controls, SDIO storage, and 32 WS2812B / NeoPixel LEDs.
Cyber Vigilance owl badge
Recon Village's DEF CON 33 badge entry, The Cyber Owl, was a cyberpunk owl electronic badge with intricate mechanical detail, metallic blue-gray finish, and glowing pink LED eyes.
ESP32 touch-wheel badge with TFT, audio, LEDs, and games
The THOTCON 0xD badge was a Fourfold-built electronic conference badge for the May 30-31, 2025 Chicago event, documented as a 2,000-unit ESP32 touch-wheel badge with ST7789 TFT display, buzzer, six LEDs, LiPo power, add-on header, games, visual effects, and challenge hooks.
Antisyphon-sponsored ESP32-S3 badge CTF
The Wild West Hackin' Fest Deadwood 2025 e-badge was the conference's electronic badge and badge CTF artifact. The official WWHF e-badge page identifies Antisyphon Training as the badge sponsor, Meta CTF as the scoreboard/challenge partner, multiple challenges solvable from badge behavior or firmware, and Ray Feltch, David Fletcher, and Rick Wisser as badge-team contacts.
RP2040 galvanic-vestibular badgelife badge
The Tipsy Badge was an independent DEF CON 33 electronic badge by seeess, sold at the Hacker Warehouse vendor booth, with public CC BY-NC 4.0 repository documentation, firmware, a badge photo, 2xAAA power, RP2040 control, TFT display, buttons, LEDs, SAO port, custom photo storage, and galvanic vestibular stimulation modes.