Tag dossier
Badge records tagged with Capacitive Touch, across Australia, France, Germany, Ireland, United Kingdom, United States.
95-LED scrolling-text badge with capacitive controls
A Joe Grand / Grand Idea Studio electronic badge for DEF CON 15, built around a Freescale MC9S08QG8, a 5-by-19 matrix of 95 LEDs, capacitive touch controls, customizable vertically scrolling text, persistence-of-vision behavior, and another official badge-hacking contest.
Nixie-tube hacker conference badge
A source-backed early TROOPERS electronic badge built around a glowing nixie-tube digit, a programming station for badge scores, a Cat-5 LANyard switch, and hidden capacitive-touch and pad-field hack surfaces.
PIC32 badge with LCD, IR, capacitive sliders, and public firmware
The RVAs3c 2014 badge was a redesigned HackRVA electronic badge whose official preview and public firmware source document a PIC32-based platform with LCD, infrared, capacitive sliders, LEDs, speaker, micro USB, and game/application code.
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.
Hybrid-year badge with SAMD21, ESP32, e-paper, LEDs, and firmware restoration flow
BSides Canberra 2021 is source-backed by the official event page, an attendee production note, public firmware repository, schematic mirror, and Mos & Boo badge-hacking writeups documenting a shipped electronic badge with SAMD21, ESP32-PICO-D4, e-paper display, LEDs, capacitive touch, and firmware reflashing workflow.
ESP32 retro-controller badge with LEDs, buzzer, accelerometer, and Wi-Fi
The THOTCON 0xB badge was a rescheduled-2021 Chicago electronic conference badge in a retro controller / circus-ticket form factor. Rob Rehrig's first-hand writeup documents an ESP32 main controller, reverse-mount RGB and single-color LEDs driven by an IS32FL3731 LED driver, capacitive touch buttons, piezo buzzer, accelerometer, 2.4 GHz Wi-Fi node behavior, IRC remote connectivity, and serial interface.
Maker-documented ESP32-S3 electronic conference badge
BSides Knoxville's 2025 official guide says Fox Pick made the event badges. In a public post-event talk, a Fox Pick representative describes the resulting electronic badge as ESP32-S3 based, with Bluetooth Low Energy and 2.4 GHz Wi-Fi, an SSD1309 display, capacitive touch controls, USB-C, a CH340 USB-UART bridge, battery voltage monitoring and charging/protection circuitry, a NeoPixel status light, and exposed I/O pads. The talk says source code was made available through a QR-linked GitHub page, but this pass did not recover a direct repository URL.
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.
Independent brass Coin M0 text-adventure and CircuitPython eChallengeCoin planned for DEF CON 34
AoSC's 2026 eChallengeCoin page describes a planned limited run of 40 brass electronic coins, framed as gifts for participants in its Choose Your Own Charity initiative rather than items for sale. It describes a Sara and the Missing Artifacts terminal text adventure, three groups of NeoPixels, a small speaker, one large touch pad for CircuitPython, no battery, 46-gram brass construction, and a Micro-USB serial connection; its form says a $100-or-greater youth-STEM-charity donation may receive a 2026 coin by U.S. mail or DEF CON pickup. The same page links the official CircuitPython Bradán Lane STUDIO Coin M0 profile as the build specifically for the eChallengeCoin. That profile identifies an ATSAMD21G1A, 4 MB flash, three RGB-NeoPixel groups, three capacitive touch pads, a speaker, and native USB-C. The linked primary sources therefore document a real planned independent DEF CON 34 electronic artifact while also disagreeing about USB connector type and touch-pad count; this record preserves the conflict rather than resolving it. They do not establish final manufactured-unit parity, confirmed donations or delivery, charity/tax treatment, official DEF CON issuance or admission, game-source licensing, or reusable-image rights.
Irish STM32 touch-and-sound electronic conference badge
A source-backed BSides Dublin 2026 Harp Badge: the organizer-owned public repository preserves firmware, a hardware reference, production files, and a post-event update path for the May 23 Trinity College conference.
UK ATtiny814 LED owl with EEPROM-gated game unlocks
An official UK BSides Leeds 2026 badge documented by the punk-security repository as an ATtiny814 Artie the Owl board with eighteen SK6812 addressable RGB side-emitting LEDs, six capacitive touch pads, two CR2032 coin cells, and three single-player games whose one-byte EEPROM unlock gates hidden bonus LED animations, for the June 13, 2026 seventh edition at Cloth Hall Court in Leeds.
Pre-event independent ESP32-C3 touchscreen badge project for DEF CON 34
Aask42's public MidWestCoastBadge repository identifies an independent MidWestCoast Badge project, labels its firmware as DEF CON 34 badge firmware, and frames it around a MidWestCoast Party / IoT-hacking context. Its commit-pinned firmware README names an ESP32-C3 driving a 240×320 ST7789 IPS panel plus a capacitive touch controller at I2C address 0x15, with swipe-and-tap controls and no buttons. A project MVP note identifies the Arduino/C++ tree as the current implementation. DEF CON's own registration page independently establishes the August 6-9, 2026 Las Vegas conference context. These sources support a real pre-event independent electronic-badge project associated by its publisher with DEF CON 34, not proof of final physical units, party or event authorization, DEF CON issuance or endorsement, allocation, price, delivery, attendance, admission, deployed firmware, or reusable-image rights.
Source-published 15-pixel touch SAO firmware project; physical artifact and handoff unverified
Punk Security's public repository calls its Arduino sketch "the firmware for the OWASP DefCon 34 SAO." Its final public source snapshot provides an actual `main.ino` rather than an event-labelled name alone: it defines 15 addressable RGB pixel positions, three PTC capacitive-touch nodes, and a README that says the SAO header exposes UPDI for reprogramming. This clears the catalogue threshold for a named, source-published pre-event electronic add-on project. It does not establish a final PCB, microcontroller, power path, exact SAO specification, fabricated unit, approved OWASP or DEF CON relationship, price, allocation, pickup, delivered handoff, credential function, or reusable image rights.
Independent PFC161 touch-and-four-LED companion SAO announced for DEF CON 34
BigFuckingBadge's public DEF CON 34 Badgelife response lists a new $20 PORTAL gun SAO and says touching its end changes animated colors and interacts with the PORTAL Badge. The maker's live DEF CON 34 page independently describes a $20 Portal-gun companion with blue, orange/red, and off modes plus interaction with that year's Portal Badge. Hexum064's public `portal-gun-sao-dc33-code` source targets PFC161, defines a four-pixel LED buffer, blue/orange color states, a capacitive-touch threshold, and a touch-triggered state update; the public hardware tree holds KiCad, BOM/position, Gerber, and acrylic files. The source repositories retain `dc33` in their names, so they are an implementation/reuse trail rather than proof of a newly designed or unchanged 2026 production revision. Together the sources establish a real planned independent electronic SAO associated with DEF CON 34—not official DEF CON issuance, admission, confirmed fulfillment, a finalized host-compatibility claim, final hardware/firmware parity, third-party-IP permission, a source-license grant, or a rights-cleared image.
Open ESP32-S3 capacitive light-up workshop badge
leHACK's official 2026 workshop schedule and the French National Cybersecurity Agency's leHACK listing present Badge Hackropole as a novice-accessible workshop in which participants assemble a capacitive light-up badge, solder a microcontroller and eight SMD LEDs, and program preconfigured WLED firmware. FCSC-FR's public hackropole-badge repository supplies the PCB source, assembly instructions, firmware binaries/configuration, and per-file licensing. The programme lists ten 55-minute workshop sessions across June 26-27, but the source trail does not prove final attendance, completed builds, or a conference-wide handout.