Tag dossier
Badge records tagged with Audio, across Argentina, Germany, Israel, Mexico, Netherlands, United States.
ESP32-WROOM-32 audio badge with Alexa experiment path
LayerOne 2018's electronic badge was an ESP32-WROOM-32-based audio and network badge documented by the official HHV archive, Hackaday's event report, the linked CharlieX ESP32_Alexa repository, and mmca's public hardware notes.
HackRVA electronic badge with games, puzzles, and two-channel audio
HackRVA's 2018 recap and badge wiki document more than 300 RVAsec electronic hardware badges with badge games, puzzles, two-channel audio behavior, challenge content, and badge-hacking competition context.
nRF52840 e-paper smart badge with audio, NeoPixels, and SAO
A source-backed ARAMCON 2019 smart badge record for an nRF52840 conference badge with a 2.9-inch e-paper display, accelerometer, flash, MP3/WMA audio codec, Cherry MX keys, NeoPixels, SAO connector, CircuitPython support, and public KiCad hardware files.
SHA2017-derived Badge.Team badge
A HackerHotel badge made mostly from leftover SHA2017 parts, adding PSRAM, IR, stereo audio, Grove I2C, and SAO expansion.
Pandemic-era HackRVA firmware archive with LCD, IR, audio, USB, and apps
The RVAsec 2020 badge is seeded from HackRVA's public firmware repository. The source tree documents a real badge software target with LCD display code, buttons, IR packet handling, menus, badge apps, audio/image asset playback, LED control, USB bootloader tooling, and a small C-like interpreter.
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.
HackRVA electronic badge with UF2 flashing, audio output, IR, and games
The RVAsec 2023 badge is backed by official RVAsec package language for limited HackRVA electronic badges and HackRVA's public firmware repository. The repository documents LCD display, three-color LED, D-pad, IR Tx/Rx, rotary encoder, audio output, micro-USB UF2 flashing, SDL simulator support, and a broad app/game tree.
CCCamp 2023 music and light badge
A petal-shaped electronic instrument where touch and gestures become sound and light.
HackRVA firmware and emulator badge with IR, audio, games, and badge-hacking context
The RVAsec 2024 badge record combines official RVAsec package/layout evidence for limited HackRVA electronic badges and badge-hacking context with HackRVA's public firmware and emulator repository. The source tree documents LCD, three-color LED, D-pad, IR, rotary encoder, audio output, SDL simulator, and expanded games/apps.
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.
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.
Pre-event CH32V303 Portal puzzle badge from a public DC34 source tree
BigFuckingBadge's live DEF CON 34 page calls this year's Portal Badge a 14×14-inch Companion-Cube-shaped, touch-activated badge, marks presale open with limited quantities, and advertises $120 before DEF CON 34 or $150 through hackerwarehouse during the con. A public GitLab hierarchy at `hexum-public-share/bfb/dc34/public/badge/portal-badge` contains separate software, hardware, and sound projects for the same Portal-themed badge. The source names a `ch32fun-portal-badge` firmware project and a `ch32v303-48lqfp-portal-badge` board project; its current software configuration targets a CH32V303CBT6 with PlatformIO and ch32v003fun. The committed firmware defines 85 LED pixels, fourteen active-low inputs, SD-card-backed audio with DAC playback, flash-persisted unlock state, a serial Portal Gun SAO/badge-to-badge protocol, and diode-solder-on detection. Its design document describes standby, Nyan, and a four-level Portal puzzle game built around spheres, portals, fire, and unlockable features. Public commits show software “final code checks” and hardware acrylic SVG work on August 2, 2026. This is a source-backed pre-event independent record, not proof of a completed sale, physical run, event allocation, pickup, official DEF CON credential, final binary, safety validation, third-party-IP permission, or reusable-image rights.