Add-on dossier

Sound module option

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

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Onion DAO 2026 Hardware Badge public hardware documentation; installed variant unconfirmed

swappable audio module

The module guide documents an optional NS4168 I2S amplifier and SPH0641 PDM microphone sound module on the side-port hardware.

Badge
Onion DAO 2026 Hardware Badge
Type
swappable audio module
Status
public hardware documentation; installed variant unconfirmed
Compatibility
OnionDAO Badge side-port module option; it shares GPIO with the CC1101 design and is not established as a universal attendee population.
Source
https://github.com/OnionDAO-git/oniondao-badge/blob/main/docs/MODULES.md

Badge context

Related Resources

hardware and software source repository

OnionDAO Badge repository

Organizer-linked public repository describing the ESP32-S3 badge, KiCad sources, manufacturing outputs, hardware and software source layout, licensing boundary, and community-driven firmware path.

Badge: Onion DAO 2026 Hardware Badge

official event page

Onion DAO 2026 festival and badge

Primary organizer source for the June 2026 Chicago Year Two festival, its hardware and cybersecurity context, accepted-attendee hardware-badge statement, soldering-completion wording, high-level ESP32-S3/radio options, and the organizer-controlled GitHub link.

Badge: Onion DAO 2026 Hardware Badge

Source trail

Evidence Sources

Onion DAO · retrieved 2026-05-15

Onion DAO 2026 festival and badge

Primary organizer source for the June 2026 Chicago builder-festival context, four hardware/AI/cybersecurity/blockchain weeks, accepted-attendee hardware badge, final soldering step, high-level ESP32-S3/radio statements, and official repository link.

Badge: Onion DAO 2026 Hardware Badge

OnionDAO-git · retrieved 2026-05-15

OnionDAO Badge README

Primary project README for the ESP32-S3-WROOM-1-N8R8, board/source layout, display socket, secure element, I2C button expander, side ports, hardware and software licensing language, and community firmware path.

Badge: Onion DAO 2026 Hardware Badge

OnionDAO-git · retrieved 2026-05-15

OnionDAO official GitHub organization

Organizer-linked source-publisher profile that lists the public oniondao-badge repository. It corroborates the relationship between the official festival site and the technical source tree, not an individual maker attribution.

Badge: Onion DAO 2026 Hardware Badge