DEF CON 32 Badge
An official DEF CON 32 electronic badge built around Raspberry Pi RP2350 silicon, a handheld-game-style interface, LEDs, firmware archives, and a DEF CON 32 badge game whose GB Studio project files were published after the event.
DEF CON
DEF CON 32
The 2024 DEF CON edition whose official electronic badge used Raspberry Pi RP2350 silicon, a handheld-game form factor, firmware/game archives, GB Studio source material, and a public badge patch trail.
Las Vegas Convention Center, Las Vegas, Nevada · United States · 2024
Hackbat DEF CON 32 Badge
The Hackbat Badge is an unofficial DEF CON 32 badgelife board documented by the Hackbat project page and GPL-3.0 GitHub repository, with ESP32-C3 Wi-Fi/BLE, OLED display, WS2812 LEDs, six buttons, AA-cell case support, and production files.
Lifecycle
Add-ons & Upgrades
DEF CON 32 Badge
archived
GB Studio badge game
The public DEFCON 32 Badge Game repository contains GB Studio project files and graphical assets for the badge's LVCC-themed game.
Hackbat DEF CON 32 Badge
source-backed
OLED and six-button handheld layout
The documentation describes a Game Boy-like badge layout with OLED display and six push buttons for attendee interaction.
DEF CON 32 Badge
historical
Custom Game Boy ROM experiments
Community ROM work showed the badge running custom Game Boy ROM code and controlling all nine LEDs beyond the default controls.
DEF CON 32 Badge
archived
Official firmware and hardware archive
The DEF CON media-server badge directory published hardware, firmware, game, music, asset, and later FREEWiLi firmware files for post-event hacking.
Hackbat DEF CON 32 Badge
source-backed
ESP32-C3 WROOM badge core
The Hackbat README documents the ESP32-C3 WROOM module as the badge core, with 2.4 GHz Wi-Fi, BLE 5.0, and Arduino IDE or ESP-IDF programming paths.
DEF CON 32 Badge
source-backed
RP2350 badge platform
DEF CON described the DC32 badge as the first RP2350 board, while Raspberry Pi sources document the badge as powered by RP2350.
Hackbat DEF CON 32 Badge
source-backed
WS2812 badge LEDs
The Hackbat documentation lists four WS2812 smart LEDs on the badge board.
Hackbat DEF CON 32 Badge
source-backed
JLCPCB production-file release
The repository README documents compressing the production files and using the centroid and BOM files to order boards through JLCPCB.
Operational history
Issues & Camp Impact
DEF CON 32 Badge
note
Public sources document the save issue, firmware archives, GB Studio game source, and DEF CON's response to contractor-credit and firmware claims, but this pass does not adjudicate every dispute, audit every firmware build, or mirror every hardware/game asset.
The catalogue records the verified public badge surfaces and flags that the production and firmware story needs a deeper artifact-level chronology.
Hackbat DEF CON 32 Badge
warning
The README warns that the DEF CON 32 received version had D9 misplaced, leaving USB 5V directly connected to the battery; the repository says the current revision fixes the problem.
The catalogue preserves the battery/USB safety erratum and does not treat all Hackbat boards as identical to the fixed public revision.
The Hackbat visual uses the GPL-3.0 `doc/3d.png` render from the official theHackbat/defcon32_badge repository.
The record has a rights-cleared official upstream raster render with source URL, license, attribution, local source preservation, and optimized WebP delivery while avoiding generated or placeholder imagery.
DEF CON 32 Badge
note
No local DEF CON 32 badge photo has been added because official store/news images, Raspberry Pi images, community blog images, and attendee images have not been paired with a complete reuse basis, attribution string, and processing record for this catalogue.
The entry remains image-free rather than copying official, press, or community photography without provenance.
Hackbat was designed specially for DEF CON 32 and source text references people who received it at DEF CON, but the public sources do not make it the official DEF CON 32 attendee badge or state a complete distribution quantity.
The catalogue keeps Hackbat as an unofficial DEF CON 32 badgelife record separate from the official RP2350 DEF CON 32 Badge.
Resources
Hackbat DEF CON 32 README
badge documentation · Primary documentation source for ESP32-C3 WROOM, OLED, four WS2812 smart LEDs, six buttons, AA-cell case support, Arduino IDE or ESP-IDF programming, JLCPCB production-file use, and the D9 erratum.
DEF CON 32 Badge Flashy ROM
community ROM · Community source documenting a custom Game Boy ROM for the DEF CON 32 badge, LED control behavior, and public source publication.
DEF CON 32 badge media-server directory
design and firmware assets · Official media-server source for assets.zip, Badge_Game_Music_v2.zip, badge_readme.txt, DC32 HW.zip, DC32BadgeGame.zip, DEFCON-32-BadgeFirmware-main.zip, and FREEWiLi firmware documentation.
DEF CON 32 event archive
event page · Official DEF CON archive source for August 8-11, 2024 dates, Las Vegas Convention Center venue, pricing, and post-con media archive links.
Hackbat DEF CON 32 repository
hardware and firmware source · Public source repository for the Hackbat DEF CON 32 badge, including KiCad material, documentation images, production-file workflow, and source publication context.
Raspberry Pi Pico 2 launch note
hardware context · Raspberry Pi source for RP2350 launch context and the DEF CON badge relationship around the new microcontroller.
RP2350 hacking challenge results
hardware security context · Raspberry Pi source documenting the DEF CON 32 badge as an RP2350-powered badge, with credit context around Entropic Engineering and Dmitry Grinberg.
Hackbat upstream 3D render
image source · Official repository `doc/3d.png` raster render retained locally as the image source and served as an optimized WebP delivery asset.
Hackbat repository license
license · Repository license source for GPL-3.0 reuse basis used by this catalogue for the upstream 3D badge render.
DEF CON 32 badge news and response posts
official news · Official DEF CON news source for the badge sale posts, first-RP2350-board statement, save-issue patch notice, and DEF CON response to badge controversy.
DEF CON 32 badge redirect
official patch path · Official badge-update URL that redirects to the DEF CON 32 badge media-server archive.
Hackbat project page
project page · Hackaday.io project source stating that the Hackbat Badge was designed specially for DEFCON32 and summarizing the ESP32-C3, Wi-Fi/Bluetooth, LEDs, OLED, and first-run D9 diode warning.
DEFCON 32 Badge Game repository
source · Public badge-game source for GB Studio project files, DEF CON 32 LVCC game context, playable itch.io link, and remix/ROM-hack notes.
Making the DEF CON 32 Badge
talk metadata · InfoconDB source for the DEF CON 32 badge-making talk title, presenter Mar Williams, timing, and 60-minute duration.
Sources
Calvin Liang: DEF CON 32 Badge Flashy ROM
Retrieved 2026-05-15 · Community ROM source for Game Boy ROM behavior on the DEF CON 32 badge, all-LED control observations, and public code publication.
CosmicBonBon / GitHub: DEFCON 32 Badge Game
Retrieved 2026-05-15 · Public source for the GB Studio badge-game project, graphical assets, playable itch.io link, and ROM-hacking/remix context.
DEF CON: DEF CON 32 Badge Redirect
Retrieved 2026-05-15 · Official badge-update path proving defcon.org/badge/32 as the public patch/archive handoff URL.
DEF CON: DEF CON 32 Hacking Conference
Retrieved 2026-05-15 · Official event archive source for DEF CON 32 dates, venue, prices, and post-con archive links.
DEF CON: DEF CON 32 News
Retrieved 2026-05-15 · Official source for badge sale and extra-badge posts, first-RP2350-board wording, save-issue patch notice, and DEF CON's response to badge controversy.
DEF CON Media Server: DEF CON 32 badge media directory
Retrieved 2026-05-15 · Official source for hardware, firmware, game, music, asset, readme, and FREEWiLi firmware archive filenames.
GitHub / theHackbat: DEFCON32 Badge README
Retrieved 2026-05-15 · Primary hardware documentation source for ESP32-C3 WROOM, OLED, WS2812 LEDs, buttons, AA-cell case, programming options, production-file workflow, and the fixed-revision note.
GitHub / theHackbat: thehackbat/defcon32_badge
Retrieved 2026-05-15 · Repository source for the open hardware/source tree, documentation images, KiCad/production files, and upstream 3D render.
GitHub / theHackbat: thehackbat/defcon32_badge LICENSE
Retrieved 2026-05-15 · GPL-3.0 license source supporting local publication of the official upstream repository render with attribution and source preservation.
Hackaday.io / theHackbat: Hackbat Badge
Retrieved 2026-05-15 · Project-owner source describing the Hackbat Badge as designed specially for DEFCON32 and warning DEF CON recipients about the D9 diode placement issue.
InfoconDB: Making the DEF CON 32 Badge
Retrieved 2026-05-15 · Talk metadata source for Mar Williams' DEF CON 32 badge-making talk, date, time, and 60-minute duration.
Raspberry Pi: Raspberry Pi Pico 2, our new $5 microcontroller board, on sale now
Retrieved 2026-05-15 · Raspberry Pi launch-context source for RP2350 and DEF CON badge connection around Pico 2 availability.
Raspberry Pi: Security through transparency: RP2350 Hacking Challenge results are in
Retrieved 2026-05-15 · Raspberry Pi source for RP2350-powered DEF CON 32 badge description, challenge context, and public credit trail around badge hardware and firmware work.