DEF CON 22 Badge
A Parallax-built official DEF CON badge for DEF CON 22, based on the Propeller 1, infrared transmit/receive hardware, touch-pad buttons, LEDs, full USB programming, exposed I/O, and thirteen attendee-role styles.
DEF CON
DEF CON 22
The 2014 DEF CON edition whose Parallax-built Propeller 1 badge used infrared, touch pads, LEDs, full I/O access, role variants, C code releases, and badge-contest mechanics.
Rio Hotel & Casino, Las Vegas, Nevada · United States · 2014
Lifecycle
Add-ons & Upgrades
DEF CON 22 Badge
historical
Propeller 1 badge puzzle platform
The badge was a required tool for DEF CON's largest contest, connecting cryptology, social engineering, programming, and attendee interaction to the official entry badge.
DEF CON 22 Badge
archived
C-style badge code release
DEF CON's archive announced C-style badge code and a badge-hacking-file torrent so attendees could continue writing and studying badge software after the conference.
DEF CON 22 Badge
source-backed
Infrared and touch interaction stack
The badge exposed infrared transmit/receive hardware, touch-pad buttons, LEDs, USB programming, and accessible I/O so attendees could interact during the event and keep hacking afterward.
Operational history
Issues & Camp Impact
DEF CON 22 Badge
note
The local DEF CON 22 image is Tony Webster's Wikimedia Commons badge photograph under CC BY-SA 4.0.
The entry now has a rights-cleared original documentary photo without using generated, placeholder, or uncleared event imagery.
DEF CON 22 Badge
note
DEF CON points to Parallax forum code and badge-hacking torrents, while this pass records the existence of the release rather than unpacking every firmware artifact.
The record preserves verified software-release context and leaves deeper artifact inventory as an archive task.
Resources
DEF CON 22 event archive
event page · Official DEF CON archive source for August 7-10, 2014 Rio Hotel & Casino event context, DEF CON 22 badge news, C-style code release, and badge-hacking-file torrent.
DEF CON 22 badge Commons photo
licensed photo · Wikimedia Commons source for Tony Webster's CC BY-SA 4.0 photograph of a DEF CON 22 badge.
DEFCON 22 Conference Badge
project retrospective · Parallax source for Propeller 1 hardware, IR, touch pads, LEDs, USB programming circuit, exposed I/O, 13 badge styles, 14,000-board production, and named concept contributors.
Parallax badge downloads
software and hardware archive · Parallax download archive preserving Hackable Electronic Badge product guide, schematic, BadgeHacker customization tooling, Propeller Spin/C examples, and design files for the related badge platform.
Sources
DEF CON: DEF CON 22 Hacking Conference
Retrieved 2026-05-15 · Official event archive source for dates, venue, badge-code release note, badge-hacking-file torrent, and Hardware Hacking Village context.
Parallax: Badge Downloads & Software
Retrieved 2026-05-15 · Primary Parallax archive source for supported badge software, schematics, product guide, C/Spin examples, BadgeHacker tooling, and design files for the related hackable electronic badge platform.
Parallax: DEFCON 22 Conference Badge
Retrieved 2026-05-15 · Primary supplier/designer source for Propeller 1, IR transmit/receive, touch-pad buttons, LEDs, USB programming, exposed I/O, 13 badge styles, 14,000 assembled PCBs, contributor names, and contest role.
Wikimedia Commons: DEF CON 22 defcon badge 2014-08-10 1407688220.jpg
Retrieved 2026-05-15 · CC BY-SA 4.0 source image for Tony Webster's original photograph of a DEF CON 22 badge; used only for image provenance, not as a hardware-spec source.