Add-on dossier

Playable synthesizer keyboard

A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.

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DEF CON 30 Badge historical

badge interface

The badge operated as a playable musical keyboard and synthesizer with instrument behavior, display, speaker, and challenge mode tied to note entry.

Badge
DEF CON 30 Badge
Type
badge interface
Status
historical
Compatibility
DEF CON 30 Badge
Source
https://redballoonsecurity.com/def-con-30-badge-fun-with-ofrak/

Badge context

Related Resources

challenge writeup

DEF CON 30 Badge Challenge Writeup

Kybr raw writeup source for nine badge variants, musical measures, Peer Gynt unlock, phone and friend challenge structure, hidden faceplate numbers, and final handoff context.

Badge: DEF CON 30 Badge

event page

DEF CON 30 event archive

Official DEF CON archive source for August 11-14, 2022 venue context, Hacker Homecoming framing, media archive links, and magical mystery musical badge talk notice.

Badge: DEF CON 30 Badge

firmware writeup

DEF CON 30 badge fun with OFRAK

Red Balloon Security source for playable synthesizer behavior, Raspberry Pi Pico-driven badge description, speaker/screen/buttons, BOOTSEL/picotool workflow, and firmware modification.

Badge: DEF CON 30 Badge

official forum thread

DC30 badge forum thread

DEF CON forum source for boot key-test mode, mass-storage firmware behavior, picotool dumping, connector observations, and early badge-hacking discussion.

Badge: DEF CON 30 Badge

Source trail

Evidence Sources

DEF CON · retrieved 2026-05-15

DEF CON 30 Hacking Conference

Official event archive source for DEF CON 30 timing, venues, Hacker Homecoming context, badge-talk video notice, and media archive pointers.

Badge: DEF CON 30 Badge

DEF CON Forums · retrieved 2026-05-15

DC30 badge

Official forum source for boot mode, mass-storage firmware loading, picotool dumping, connector observations, and attendee badge-hacking notes.

Badge: DEF CON 30 Badge

InfoconDB · retrieved 2026-05-15

DEF CON 30 (2022)

Event metadata source for DEF CON 30 dates, conference context, and official DEF CON links.

Badge: DEF CON 30 Badge

Kybr / GitHub · retrieved 2026-05-15

DC30 Badge Challenge Writeup

Challenge source for badge variants, musical-measure collection, Peer Gynt unlock, phone/friend challenge branches, hidden faceplate numbers, and final solution handoff.

Badge: DEF CON 30 Badge

Red Balloon Security · retrieved 2026-05-15

DEF CON 30 Badge Fun with OFRAK

Technical source for Raspberry Pi Pico-driven badge behavior, synthesizer, screen, speaker, BOOTSEL/picotool workflow, and OFRAK firmware modification.

Badge: DEF CON 30 Badge