Add-on dossier

RP2040, local media, audio, LED, and connector platform

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 34 Silent Disco Badge versioned public design documentation

maker-documented electronic badge platform

Public documentation identifies an RP2040, microSD/local media, LiPo power path, 3.5 mm audio chain, addressable LEDs, USB-C, infrared components, and an SAO header. It records a high-level technical surface rather than a verified final BOM, pinout, voltage/current budget, cell specification, charger protection result, electrical test, compatibility matrix, compliance record, or safe-modification guide.

Badge
DEF CON 34 Silent Disco Badge
Type
maker-documented electronic badge platform
Status
versioned public design documentation
Compatibility
Maker's documented Silent Disco Badge design; exact revision and physical-unit component parity unverified
Source
https://github.com/LastZactionHero/defcon-silent-disco/blob/63a4a933fce3608c424b924337165fb9e28e6ef7/badge_hw_design.md

Badge context

Related Resources

commit-pinned firmware and revision documentation

DEF CON Silent Disco Badge firmware hardware notes

Maker-published firmware notes that distinguish rev-1 and rev-2 implementation details around audio, storage, and infrared behavior. They establish a documented revision trail, not a signed release, firmware-to-unit hash, security review, guaranteed update/recovery outcome, event media set, or unit-wide parity claim.

Badge: DEF CON 34 Silent Disco Badge

commit-pinned maintainer project update

Physical-production README update

Maintainer commit whose message says the described boards were fabricated, assembled, and playing music, and that every badge's silkscreened QR code points to the repository. It is primary source-publisher evidence of a physical maker run, not evidence of DEF CON or venue authorization, a named event programme, quantity, purchaser or recipient entitlement, delivery outcome, credential role, or independently verified condition of every unit.

Badge: DEF CON 34 Silent Disco Badge

commit-pinned maker badge documentation

DEF CON Silent Disco Badge README

Primary maker documentation for the wearable silent-disco framing, local DJ mixes, headphones, music-linked lighting, infrared badge-to-badge sync, RP2040, MicroPython/native MP3 decoder, four addressable LEDs, USB-C, sawtooth edges, current universal UF2, public KiCad sources, fabrication files, and Pikkolo Assembly design/build credit. It does not independently verify an organizer relationship, completed distribution, final unit parity, or reusable image rights.

Badge: DEF CON 34 Silent Disco Badge

public independent maker badge repository

LastZactionHero/defcon-silent-disco

Public repository titled DEF CON Silent Disco Badge, described by its publisher as an RP2040-based DEF CON silent-disco badge with KiCad project and tooling. It establishes an independently published event-associated technical project, not DEF CON authorization, a silent-disco programme role, admission function, seller, price, run size, allocation, pickup, recipient handoff, support commitment, or image-reuse permission.

Badge: DEF CON 34 Silent Disco Badge

repository source and hardware-file license

DEF CON Silent Disco Badge MIT License

Root MIT-style license naming Zach Dicklin as 2026 copyright holder and expressly covering software, associated documentation, and hardware design files. It supports repository-source attribution and licensing only; it does not identify or clear any specific documentary badge photo or selected upstream raster for local publication, establish DEF CON trademark authority, or determine third-party component/media rights.

Badge: DEF CON 34 Silent Disco Badge

versioned maker hardware documentation

DEF CON Silent Disco Badge hardware design notes

Public versioned documentation describing the project hardware architecture, including its RP2040, local-media, LiPo, audio, infrared, LED, and SAO design surface. It is a design-document source, not a final production manifest, exhaustive verified BOM, safety/compliance result, battery validation, headphone/SAO compatibility guarantee, or proof that all fabricated boards share one revision.

Badge: DEF CON 34 Silent Disco Badge

Source trail

Evidence Sources

GitHub / LastZactionHero · retrieved 2026-05-15

DEF CON Silent Disco Badge LICENSE

Primary repository license: MIT-style license, copyright 2026 Zach Dicklin, expressly covering project software, documentation, and hardware design files. It does not independently authorize DEF CON branding, clear third-party dependencies/media, establish manufacturer or organizer roles, or grant local publication rights for a chosen badge image.

Badge: DEF CON 34 Silent Disco Badge

GitHub / LastZactionHero · retrieved 2026-05-15

DEF CON Silent Disco Badge README

Primary maker source for the project's title, wearable silent-disco framing, local-mix/audio/light/infrared interaction, stated components and source/fabrication trail, and Pikkolo Assembly credit. It establishes maker-published project claims, not DEF CON authorization, a ticket entitlement, silent-disco programming, completed event distribution, admission role, or reusable-image permission.

Badge: DEF CON 34 Silent Disco Badge

GitHub / LastZactionHero · retrieved 2026-05-15

DEF CON Silent Disco Badge firmware hardware notes

Primary maker firmware/revision document for rev-1/rev-2 behavioral and hardware-context distinctions. It does not supply a signed/tagged production release, source-to-device mapping, independent security review, support policy, event configuration, or evidence that every physical badge uses the documented state.

Badge: DEF CON 34 Silent Disco Badge

GitHub / LastZactionHero · retrieved 2026-05-15

DEF CON Silent Disco Badge hardware design notes

Primary versioned maker design document for the board's high-level RP2040, storage, power, audio, infrared, LED, and SAO architecture. It does not prove a complete/final production design, fabrication quantity, assembly inspection, electrical safety, compliance, tested compatibility, or matching physical unit.

Badge: DEF CON 34 Silent Disco Badge

GitHub / LastZactionHero · retrieved 2026-05-15

README: rewrite the front door for people who scanned the badge

Primary maintainer update stating the boards are fabricated, assembled, and playing music, and that every badge's silkscreened QR points to the repository. It supports only a source-publisher physical-run claim; it does not establish recipient allocation, handoff, quantity, final component/revision parity, organizer endorsement, event access, or an independent post-event report.

Badge: DEF CON 34 Silent Disco Badge