Tag dossier
Badge records tagged with LED, across Australia, Brazil, China, India, Japan, Mexico, Puerto Rico, Singapore, Taiwan, United States.
First official DEF CON electronic badge
A Joe Grand-designed skull-shaped PCB badge for DEF CON 14, built around active electronics, open hackable circuitry, two blue LEDs, one button, seven soldermask role variants, and an official badge-hacking contest.
HeatSync Labs solderable PCB badge
The CactusCon 2014 PCB badge is preserved through Eric / Robot Ambassador's first-hand writeup, which describes 300 event badges designed by Erik Wilson, given away at the HeatSync Labs booth, and assembled by attendees with LEDs, resistors, batteries, and acrylic hardware.
Propeller 1 infrared puzzle and contest 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.
Indian hardware-hacking conference badge
A conservative Nullcon Goa 2014 hardware-badge record tied to the official Nullcon Hardware Badge 101 (Desi Jugaad) talk, which covered electronics, microcontrollers, LEDs, the design of the 2014 hardware badge, what could be done with it, and production problems.
Japanese ATmega328P LED attendee badge
AVTOKYO's official 2015 badge page says the conference made an electrical badge for attendees, with an AT-MEGA328P-PU, eight 5mm LEDs, two push buttons, 16 MHz crystal, resistors, capacitors, IC socket, coin-cell holder and battery, public KiCad PCB design, and public Arduino program.
ESP8266 Badger hacking board
The BSidesPDX 2015 Badger badge is a conservative source-backed badge-hacking board record tied to the official Electronic Taxidermy: Badger Hacking workshop and the public PDX Badgers 2015 PCB and firmware repositories.
ATTiny85 capacitive LED PCB badge
The BSidesPDX 2016 badge is a source-backed Portland Security BSides PCB badge record tied to Calagator's event listing, official BSidesPDX 2016 schedule and speaker pages, and the public PDX Badgers ATTiny85 Eagle board, schematic, BOM, and Arduino firmware archive.
555-timer light-reactive soldering badge kit
CarolinaCon 12 included an easy-to-assemble electronic kit badge in the price of admission, with a 555 timer, LED, photoresistor, resistors, capacitor, AAA battery holder, wire, protoboard space, and Hardware Hacking Village support.
Electronic skull badge with Konami and serial puzzle paths
A Ryan Clarke / 1o57 DEF CON 24 electronic skull badge with a mini processor, buttons, LED eyes, printed codes, hidden-trace/silkscreen text, serial strings, lanyard data, conference-media files, and a badge challenge that used the Konami Code as an early visible hook.
STM32F030 IR Hardware Hacking Village badge
Ruxcon 2016's Hardware Hacking Village badge is preserved as an Australian STM32F030K6T6 badge with IR receiver/emitter hardware, eight LEDs, dual CR2032 holders, assembly documentation, and a public firmware archive.
ATTiny861 LED and SAO badge archive
The BSidesPDX 2018 badge is a source-backed Portland Security BSides badge archive tied to the official BSidesPDX 101 badge panel and the public PDX Badgers KiCad, BOM, LED mapping, and ATTiny861 firmware archive.
MSP430 electronic jar-of-fireflies camp badge
ToorCamp 2018's badge is preserved as a Great Scott Gadgets and OSH Park sponsored electronic jar of fireflies: a soldering-station badge kit built around an MSP430G2211, six green through-hole LEDs, CR2032 power, and open design/firmware files.
ATtiny13A solder-and-program participant badge
BSides Puerto Rico 2019's badge is preserved as a DIY participant kit: an easy-through-hole electronic badge built around an ATtiny13A, two red/blue LEDs, two 680 ohm resistors, a slide switch, CR2032 power, public Gerbers, KiCad files, Arduino sample code, and real assembled-badge photos.
ATtiny85 LED badge archive
The BSidesPDX 2019 Multnomah badge is a source-backed Portland Security BSides badge archive tied to the official schedule's badges-and-contests context and the public PDX Badgers KiCad, BOM, and firmware repository.
Flexible-PCB tree-game badge
A Grand Idea Studio badge for the first official international DEFCON edition, built as an artistic flexible-substrate PCB with 32 LEDs, USB connectivity, accelerometer input, role-color artwork variants, and a task-completion tree-lighting game.
Taiwan-shaped ARM TrustZone challenge badge
An official HITCON CMT electronic board badge shaped around Taiwan, combining collectable conference identity, 24 LED unlock states, sponsor booth challenges, a snake warm-up, and ARM TrustZone exploitation stages.
DePaul IRL ESP32 badge with capacitive pads, LEDs, speaker, and microphone
The THOTCON 0xA / Infinity badge was a Chicago electronic conference badge produced with DePaul's Idea Realization Lab for the May 3-4, 2019 event. DePaul Newsline reported a six-month, 1,700-unit custom circuit-board badge build; the public Poplicola repository documents a SparkFun ESP32 Thing Dev base, five capacitive touch pads, six LEDs, speaker output, microphone input, stock-firmware restore commands, and Arduino examples.
RP2040 audio, microphone, LEDs, and EdgeImpulse badge
BugCON 2022's Electronic Cats badge repository documents an RP2040 electronic badge for BugCON 2022 CDMX with USB serial access, LEDs, microphone, buzzer or speaker, a small machine-learning trail through EdgeImpulse, Arduino Mbed programming notes, KiCad hardware files, and Blink/AudioWAV firmware examples.
Simple LED and SAO-header soldering badge
A CrikeyCon 8 conference badge with a documented simple LED circuit, soldering workflow, three blue 1206 LEDs, current-limiting resistors, optional coin-cell holder, and 2x3 Simple Add-On header power path.
Wooden-PCB NE555 wrapped-wire badge
A deliberately old-school H2HC 2022 badge built as a wooden PCB with large components, wrapped wire, an NE555 clock signal, and blinking LEDs.
OlyMEGA light-sensing LED spider badge
ToorCamp 2022's badge is documented by an official badge-talk session and assembly PDF as an OlyMEGA-built soldering badge: four LEDs forming spider eyes, a photocell, potentiometer, MOSFET, slide switch, resistors, and a battery holder whose circuit lights the eyes in darkness.
Classic spy badge with speaker variant
Recon Village's DEF CON 31 badge entry, The Spy Silhouette, returned to the fedora silhouette with die-cut shape, LED illumination, a speaker-badge variant, and custom Recon Village lanyard.
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.
Middle-earth themed 555-timer LED soldering badge
BSides Canberra 2024's public ticketing page promised an electronic badge, and an attendee writeup describes the shipped badge as an orc-shaped soldering badge built around a 555 timer, LEDs, diode, resistor, capacitor, and 9V battery power.
Independent three-board LED badge with a later DEF CON 33 vendor-list trail
redactd's Tindie listing introduces Dante's Inferno as an electronic badge just in time for DefCon 32, inspired by the Dante's Inferno Room. It describes three connected circuit boards, special two-color solder mask on the top two boards, sixty LEDs, an included CR123A battery, a populated SAO v1.69bis port, custom-printed box, laser-cut foam insert, and lanyard. The same maker's public repository documents a USB/UF2 firmware-update procedure and a July 2024 v1.1 release for pre-sale 1.0/1.01 units. A Hacker Couture DEFCON 33 product list later repeats the $100 product and core three-board, sixty-LED, CR123A, and SAO claims. Together, these sources establish one source-backed independent 2024 DEF CON 32 artifact with a later 2025 vendor-list recurrence, not an official DEF CON credential, a second DC33 badge, confirmed distribution at either event, a complete electrical design, a licensed source-code archive, or reusable-image rights.
ATTiny4313 POV fidget-spinner badge
The LayerOne 2024 POV Spinner Badge was an electronic fidget-spinner conference badge that displayed words and patterns through a 12-LED persistence-of-vision strip while spinning.
Independent ESP32-S3 party badge with a scheduled DC33 BadgeLife drop
BigTaro's Tindie listing calls FightDystopia 2025 an electronic party badge, prices it at $150, and displays an out-of-stock state that says it has been sold out since August 11, 2025. The maker says it detects a user-defined list of BLE MAC addresses to give a heads-up about what is around the user; includes a CTF with Windows Vista-era throwbacks, hardware and software puzzles, unlockable bling and GIFs, two custom PCBs sandwiching a screen for a retro-TV aesthetic, an ESP32-S3-based fully-programmable claim, twelve RGB LEDs, a custom lanyard, and stickers. The DEF CON 33 Creator Events List independently schedules a Friday BadgeLife Community drop naming FightDystopia alongside Submarine and FrogStar. This establishes a source-backed independent 2025 electronic artifact and scheduled event association, not an official DEF CON credential, universal or completed handout, BLE detection mechanism, security or privacy assurance, firmware source release, party-benefit accounting, or reusable-image rights.
Independent ATtiny1616 analog-input puzzle badge with a scheduled DC33 drop and current DC34 continuity
Hak4Kidz Lab's Tindie listing calls Masonic33 a cryptic, interactive badge for puzzle lovers, hackers, and DEF CON attendees. It says two 10 kΩ potentiometers control an ATtiny1616-based board with eleven independently controlled LEDs; players tune analog inputs to unlock a hidden LED sequence and solve four puzzles. The listing also names a UPDI-compatible one-wire programming interface, 4.5 V AAA-battery input with batteries included, a 4.25-inch black-solder-mask/white-silkscreen PCB, custom VHS-style box, patches, lanyard, and stickers. A recovered public DEF CON 33 schedule records a 10:30-10:59 PDT BadgeLife Community Masonic33 Badge drop credited to Heal-Hak4Kidz, while the Hacker Couture DEFCON 33 product list separately shows the Masonic33 Badge at $125. Badge.Life's live DC34 Village Schedule additionally lists Masonic33 Badge — heal at 10:30 AM on Friday August 7 and 11:00 AM on Saturday August 8, 2026, without naming a changed board or revision. These sources establish a real independent 2025 puzzle badge with planned 2026 continuity, not official DEF CON issuance, admission, a confirmed completed drop, a separate DC34 artifact, a complete circuit/firmware archive, a connection to any fraternal organization, or reusable-image rights.
Independent 25-slot Simple Add-On host badge; later DEF CON 34 roster continuity
Coruscant Ventures' official SAO Many SAOs Badge page identifies the object as a DEFCON 33 product, presents it as a 25-design Simple Add-On display platform, and says its outer LEDs require the separate SmartAO SAO. The maker's public technical README says the badge has two pre-installed 18650 batteries, USB and barrel-connector power/charging paths, up to 25 SAO slots, and an approximately 300 mA at 3.3 V total SAO budget when using charged batteries. A July 2026 public DEF CON 34 Badgelife response marks SaO MANY SAOs as Update to Existing, gives an $80 price and Venmo acquisition note, and repeats 25 SAO slots plus a 360 by 360 mm size. The current roster does not identify a changed board or new revision, so this is one independently documented DEF CON 33 host badge with a later availability/continuity record, not a duplicate DEF CON 34 artifact, official credential, completed sale, confirmed delivery, or rights-cleared image.
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.
Maker-stated DEF CON 33 multicolor-LED Simple Add-On; 2026 leftover pickup only
coryallegory's live Uberflux listing calls this the Vibe Coder Dog SAO, says Science Dog is now Coder Dog, and says the artifact was created for DEFCON 33. The same current listing says a few leftover units are available as a 2026 pre-order for pickup at DEF CON 34 or BSidesLV in Las Vegas. Its August 4, 2026 snapshot lists $15, five sold, and zero remaining, with a free Saturday August 8 BadgeLife Village pickup label. The maker says the unit is fully assembled, has a standard 2 by 3 SAO header, and uses cycling multicolor LEDs to light its keyboard with AI magic. This is source-backed evidence for an independent DEF CON 33-associated LED Simple Add-On, not proof of the original 2025 distribution, a specific controller or actual AI behavior, final 2026 pickup, DEF CON organizer affiliation, conference admission, or reusable-image rights.
Pre-event 16-red-LED Simple Add-On with a maker-stated fundraiser context
caelyb's live Uberflux listing describes the #NOICE Simple Add-On as designed for DEF CON 34. Its August 4, 2026 marketplace snapshot lists $20, eight sold, and 92 remaining, with BadgeLife Village, LineCon, and Queercon Mixer drop labels plus post-DEF-CON CONUS shipping. The listing names sixteen side-emitting XL-1606SURC red LEDs, a tactile effect button, persistent last-effect memory, and a stated 2.7–3.7 V input range. It says the board has several fast and slow flashing, heartbeat, and breathing/fade effects, includes a lobster-clasp lanyard, and frames the project around the maker's stated concerns about U.S. immigration enforcement. The maker also says a portion of proceeds goes to the Immigrant Defenders Law Center. This is a source-backed pre-event independent lighting SAO record, not verification of the listing's policy statements or donation outcome, final manufacture, electrical safety, host compatibility, delivery, DEF CON organizer affiliation, conference admission, or reusable-image rights.
Independent ATtiny814 24-NeoPixel minibadge holder offered for DEF CON 34
Cabinet of Distinctm1nd's live Beelzebub Minibadge Holder listing is a $45 offer that displayed sold out in this August 4, 2026 source pass and says DEF CON pickup is only for August 6-8 pickup attendees. The maker describes 24 NeoPixel LEDs, an ATtiny 814, USB-or-battery power, custom or pre-programmed themes, and an assembled board whose minibadge headers and optional battery holder still require soldering; it also says shown minibadges are not included. The public `distinctm1nd/beelzebub_minibadge_holder` repository corroborates a holder for five minibadges, a 24-LED source layout, button-selected theme code, and KiCad/BOM material. Its hardware archive includes a filename with `saintcon_2025`, so it is a useful implementation and lineage source, not proof of a completed SAINTCON distribution, an unchanged final 2026 build, final fulfillment, official DEF CON issuance, a complete source-license grant, or reusable-image rights.
Pre-event ESP32 ritual-game BadgeLife badge
Pfarrside Creations' badge-only listing describes the Cult of Cthulhu Indie DEF CON 34 Badge as an ESP32-powered interactive BadgeLife project that turns a DEF CON setting into a Cthulhu summoning ritual. The seller's page names ESP32, USB-C, rechargeable Li-Po power, ten LEDs, a screen, one-button input, badge types, a 13-chapter Ritual, six side-quest challenges, badge-to-badge Séance behavior, and unlockable games. It also states a second-week-of-July US-only shipping schedule with no DEF CON pickup. This is a maker-published independent badge listing, not verified final delivery or an official DEF CON admission credential.
Independent CH32V003 touch-and-audio SAO announced for DEF CON 34
BigFuckingBadge's live DEF CON 34 page presents a $20 OffensiveSAO around touching Lintile's face to play a "Don't Fuck It Up" cheer track. The public DEF CON 34 Badgelife response identifies that item as the DFIU SAO from BigFuckingBadge / Hexum064 and links public CH32V003 hardware and firmware repositories. The firmware's PlatformIO target is `genericCH32V003F4U6`; its `main.c` initializes touch ADC support, reads a touch input on PD2, starts sampled audio when the threshold is crossed, and configures a PWM audio path plus D/F/I/U and display LED outputs. The public hardware tree contains a KiCad PCB/schematic, BOM/position files, and Gerbers. Together these sources establish a real planned independent electronic SAO associated with DEF CON 34—not an official DEF CON issue, admission credential, confirmed handoff, final production revision, safety-tested product, open-source license grant, or rights-cleared image.
Singapore custom PCB hackathon badge
NUS Hackers' Hack&Roll 2026 introduced the event's first custom PCB badge, documented by the organizer recap, a Friday Hacks making-of talk, and a public MIT-licensed ESP-IDF firmware and component archive.
Pre-event 555-timer analog Simple Add-On for DEF CON 34
HogFillet's live Uberflux listing calls this the HackThePlanet SAO for DEF CON 34. Its August 4, 2026 marketplace snapshot lists $24 and a seller state of 19 sold from a listed total of 23. A public DEF CON 34 maker self-submission by FakeBobby / HogFillet calls the same linked product HTP Graffiti and gives the same $24 price; the catalogue treats that exact product-URL match as a source-backed alternate listing name, not a second board. The maker describes a 555 timer clocking a ten-bit ripple counter whose outputs drive eight LEDs through the board's graffiti art, with an onboard trimmer controlling the flash rate. It explicitly says the board has no firmware and no I2C handshake, and says a separate button can be connected to the odd or even GPIO line of the DEF CON badge's SAO header. The listing announces Friday and Saturday Badge Life Booth pickup slots, with mailing or refund offered if a stated drop is missed. This is source-backed evidence for a pre-event independent analog SAO, not proof of final delivery, exact components or circuit values, host behavior, electrical safety, optical safety, conference authorization, admission, or reusable-image rights.
Independent PFC161 two-LED message SAO update announced for DEF CON 34
BigFuckingBadge's public DEF CON 34 Badgelife response calls IFLFU SAO an update to an existing SAO, lists it at $20, and says it illuminates the words "I FUCKING LOVE FUCKING YOU" with the two "FUCKING" illuminations randomized. The same maker's live DEF CON 34 page has an unlabeled $20 OffensiveSAO card about a simple rectangle that sends a message at random; the roster supplies the direct IFLFU name/repository mapping. Hexum064's public `iflfu-v2-pfc161` C source includes PFC161 headers and drives two active-low LED outputs, each with an LFSR-based timing state, while the public hardware repository carries KiCad front/back boards and schematics, BOM/position files, Gerbers, and SAO-spacer models. These sources establish a real planned independent electronic SAO update associated with DEF CON 34—not official conference issuance, admission, a fully recovered earlier lineage, completed fulfillment, final production parity, safe/electrically characterized hardware, a source-license grant, or a rights-cleared image.
Independent ATtiny814 five-NeoPixel minibadge holder offered for DEF CON 34
Cabinet of Distinctm1nd's live Krampus Minibadge Holder listing is a $45 offer that displayed sold out in this August 4, 2026 source pass and limits DEF CON pickup to August 6-8 pickup attendees. The maker describes five NeoPixel LEDs, an ATtiny 814, microcontroller development-pin access, USB-or-battery power, and custom or pre-programmed themes; it says minibadge headers and the optional battery holder require soldering and shown minibadges are not included. The public `distinctm1nd/krampus_minibadge_holder` repository corroborates an ATtiny814 holder described as holding six minibadges, a five-LED firmware layout, button-selected theme code, and KiCad/BOM material. Its hardware archive includes a `saintcon_2025` filename, so the tree is an implementation and lineage source—not proof of completed SAINTCON distribution, final 2026 production parity, fulfillment, official DEF CON issuance, a complete source-license grant, or reusable-image rights.
Pre-event yellow-LED art Simple Add-On for DEF CON 34
delphi's live Uberflux listing calls Luna a simple PCB add-on for DEF CON 34. Its August 4, 2026 marketplace snapshot lists $10, six sold, and 44 remaining, with on-site-only DEF CON 34 pickup and tentative Friday/Saturday BadgeLife Village times. The product says each approximately 57 by 50 mm unit is fully assembled and tested, has a standard 2 by 3 SAO header, and lights a yellow LED in Luna's forehead when connected to the DC34 badge; it explicitly says no adapter is needed. The source supports a real planned light-up art SAO and an independent event-acquisition claim, but not its exact LED part, circuitry, power/current behavior, broad host compatibility, final inventory, completed pickup, DEF CON organizer status, conference admission, or reusable-image rights.
Pre-event red-eye art Simple Add-On with no described AI software
coryallegory's live Uberflux listing calls this METROPOLIS AI SAO and says it is inspired by Maria, the art-deco automaton from Fritz Lang's 1927 Metropolis. Its August 4, 2026 marketplace snapshot lists $20, 20 sold, and ten remaining, with a free Saturday BadgeLife Village pickup label and a pre-order statement for DEF CON 34 or BSidesLV pickup. The maker says each fully assembled unit uses a standard 2 by 3 SAO header and has a red eye that glows when powered through that header. The listing supplies no description of a model, application, controller, firmware, or other artificial-intelligence capability. This is a source-backed pre-event independent LED art SAO record, not evidence of AI software, final manufacture, completed pickup, universal electrical compatibility, use rights in the film inspiration, DEF CON organizer affiliation, conference admission, or reusable-image rights.
Pre-event RP2350B interactive Simple Add-On planned for DEF CON 34
ParallelLogic's Uberflux listing, public MalO_SAO source/design repository, and first-hand Hackaday.io project diary document a planned DEF CON 34 Simple Add-On based on the SCP-1471-A MalO setting. The marketplace's August 4, 2026 snapshot lists $50, 43 sold, and 57 remaining. The repository says the units are intended for online sale and DEF CON 34 handout in August 2026, identifies an RP2350B, 16 MB external flash, 1.5-inch 128 by 128 grayscale OLED, standard six-pin SAO header, USB-C, capacitive touch, potentiometer, buzzer, microphone, hall sensor, IMU, ambient-light sensor, IR transmit/receive, NFC/RFID, and LED banks. Its project diary confirms the work is ongoing and documents early prototype testing. The repository declares the work CC BY-SA 3.0. This is a source-backed pre-event independent badge record, not proof that a final revision has shipped, that all promoted functions are complete, that every radio/sensor interaction is safe or private, that a named third-party lore asset grants image rights, that the project is DEF CON-issued, or that it grants admission.
Pre-event ATtiny1616 cedar interactive Simple Add-On for DEF CON 34
MakeItHackin's live Uberflux listing describes Root Access as a home-milled Tennessee-cedar add-on built for the DEF CON 34 badge and says it also works with a standard six-pin SAO header. Its August 4, 2026 marketplace snapshot lists $50 and a seller state of 15 sold from a listed total of 100, with BSides Las Vegas and Linq Circle Bar drop labels. The maker's public RootAccess guide independently identifies an ATtiny1616, ten addressable RGB pixels, eleven discrete LEDs, fifty built-in animations, a physical button, I2C address 0x50, and non-volatile USERROW state. It documents standalone operation and host-controlled lighting over I2C, plus separate GPIO 1 and GPIO 2 circuits that can be used as LED outputs or button inputs. This is a source-backed pre-event independent SAO record, not proof of final manufacture, actual drop handoff, every listed compatibility claim, safe electrical integration, DEF CON organizer affiliation, conference admission, or reusable-image rights.
Public player-guide electronic challenge badge; allocation unverified
BigDawgDave's public GitHub repository describes itself as the public repository for a DEF CON 34 RM-Cyber challenge badge called The Shattered Shard. Its Player Guide tells participants to use an assigned badge with a charged battery, a local Wi-Fi/browser interaction, a data-capable USB cable, a serial terminal, and one labelled-jumper task. It is enough evidence to preserve a separately named, independently documented pre-event electronic challenge badge, but it does not prove the RM-Cyber relationship, organizer authorization, hardware provenance, sale or giveaway, run size, allocation, physical handoff, completed on-site use, admission function, or a rights-cleared image.