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.