linux.conf.au 2022 Open Hardware Miniconf · Australia · 2022

LCA2022 SwagBadge and Rockling SAO Kit

Updated SwagBadge, FPGA SAOs, and Rockling hardware-kit trail

linux.conf.au 2022's Open Hardware Miniconf publicly documented hardware kits, an updated LCA2022 SwagBadge, two SAOs, a Rockling FPGA audio processor, Theremin and Party Button SAOs, and a hardware-design session for the OHMC2022 Rockling and Swag Badge.

linux.conf.au Open Hardware Miniconf Australia SwagBadge Rockling FPGA SAO Theremin Party Button Oceania

Eventlinux.conf.au 2022 Open Hardware Miniconf

Serieslinux.conf.au Open Hardware Miniconf

LocationOnline, worldwide

CountryAustralia

People

Authors & Credits

Open Hardware organizer and kit presenter

Andy Gelme

Named on official LCA2022 pages as Open Hardware organizer and SwagBadge/Rockling SAO session presenter.

Source

Open Hardware organizer and kit presenter

Jonathan Oxer

Named on official LCA2022 pages as Open Hardware organizer and SwagBadge/Rockling SAO session presenter.

Source

Rockling and Swag Badge hardware designer/presenter

Robert Powers

Official LCA2022 talk page says Robert handled most of the Open Hardware Miniconf hardware design and presented the Rockling/Swag Badge hardware-design session.

Source

SwagBadge 2022 presenter

Nicola Nye

Named on the official Intro to SwagBadge 2022 talk page as a presenter for the hardware-kit and software tour.

Source

event and hardware-kit publisher

linux.conf.au 2022 / Linux Australia

Official publisher of the LCA2022 pages used for hardware-kit, Open Hardware Miniconf, schedule, and event context.

Source

Why It Mattered

It extends the LCA/OHMC lineage with an online badge kit that pushed badgelife toward FPGA education, SAO interoperability, and continuity between the 2021 and 2022 SwagBadge variants.

Hardware

Official linux.conf.au sources document an updated LCA2022 SwagBadge, hardware kits for purchase, an FPGA SAO that could work standalone or with electronic conference badges, two shipped SAOs, a Rockling FPGA audio processor, Theremin SAO, Party Button SAO, and a dedicated Rockling/Swag Badge hardware-design session. This pass does not claim unrecovered board files, exact FPGA part, battery, display, or firmware image details.

Software & Apps

The official Intro to SwagBadge 2022 session covered the kit's software and how the hardware functioned. The Open Hardware Miniconf page says the morning sessions explained the hardware and firmware, while pre-event workshops covered developing applications for both 2021 and 2022 SwagBadge/SAO variants.

Lore

The 2022 miniconf explicitly positioned the kit as a bridge from the ESP32/Arduino badge world into open FPGA tooling and RISC-V-on-FPGA learning, while preserving compatibility with prior LCA2021 SwagBadges.

Lifecycle

Add-ons & Upgrades

SAO expansion source-backed

FPGA SAO bridge

The LCA2022 Open Hardware Miniconf page described an FPGA SAO usable standalone or plugged into compatible electronic conference badges, including LCA2021 SwagBadge combinations.

Compatibility: LCA2022 SwagBadge and Rockling SAO Kit

Source

SAO hardware source-backed

Rockling FPGA audio processor

The official LCA2022 Rockling session documented the Rockling FPGA audio processor as part of the hardware kit and SAO talk track.

Compatibility: LCA2022 SwagBadge and Rockling SAO Kit

Source

SAO hardware source-backed

Theremin and Party Button SAOs

The official LCA2022 SAO session described two shipped SAOs in the hardware kit, including Theremin and Party Button add-ons.

Compatibility: LCA2022 SwagBadge and Rockling SAO Kit

Source

Operational history

Issues & Camp Impact

hardware archive gap note

Official LCA2022 pages document hardware kits, an updated SwagBadge, FPGA SAOs, Rockling and SAO sessions, and a hardware-design talk, but this pass did not recover a stable schematic, BOM, bitstream, firmware, PCB, or repository license archive.

The entry captures the event-backed kit and badge lineage while avoiding unsupported chip-part, board-revision, firmware, or shipped-behavior claims.

Confidence: source-backed but incomplete
Status: needs stable public hardware archive
Timeframe: 2022 badge archive pass
Source note: LCA2022 ticketing news, Open Hardware Miniconf page, and schedule/talk pages.

missing rights-cleared image note

No LCA2022 SwagBadge, Rockling, or SAO image is published because no rights-cleared original photo or official upstream raster render with complete provenance has been recovered.

The record stays image-free rather than copying event imagery, talk thumbnails, or generated badge art.

Confidence: local project policy
Status: needs licensed original replacement
Timeframe: current catalogue build
Source note: badge.gallery image policy and LCA2022 source trail.

Resources

Hardware design of the OHMC2022 Rockling and Swag Badge hardware-design talk · Official talk page documenting Robert Powers as the hardware-design presenter for the OHMC2022 Rockling and Swag Badge design session. Intro to SwagBadge 2022 software and kit talk · Official talk page for the SwagBadge 2022 hardware-kit tour and software session by Andy Gelme, Jonathan Oxer, and Nicola Nye. LCA2022 Open Hardware Miniconf miniconf page · Official miniconf page documenting the updated LCA2022 SwagBadge, FPGA SAO, 2021/2022 compatibility, workshop plans, hardware/firmware sessions, and open FPGA tooling context. LCA2022 schedule schedule · Official schedule page listing the Intro to SwagBadge 2022, Rockling FPGA audio processor and SAO, and Rockling/Swag Badge hardware-design sessions. LCA2022 ticket sales and hardware kits event news · Official linux.conf.au news post documenting online event dates, Open Hardware Miniconf kits, limited stocks, and conference website purchase flow. Rockling FPGA Audio processor and SAOs SAO talk · Official talk page documenting two shipped SAOs in the 2022 hardware kit, including the Rockling FPGA audio processor, Theremin SAO, and Party Button SAO context.

Sources

linux.conf.au 2022: Ticket Sales now open! Retrieved 2026-05-15 · Official source for online LCA2022 dates, Open Hardware Miniconf hardware kits, limited stocks, and conference purchase path. linux.conf.au 2022: Open Hardware Miniconf Retrieved 2026-05-15 · Primary source for updated LCA2022 SwagBadge availability, FPGA SAO, 2021/2022 compatibility, hardware/firmware/app workshop plans, and open-FPGA learning framing. linux.conf.au 2022: Intro to SwagBadge 2022, the SAOs and the software Retrieved 2026-05-15 · Official source for the 2022 hardware-kit and software-tour session and presenter credits. linux.conf.au 2022: The Rockling FPGA Audio processor and Theremin SAO and Party Button SAO Retrieved 2026-05-15 · Official source for the two shipped SAOs, Rockling FPGA audio processor, Theremin SAO, and Party Button SAO context. linux.conf.au 2022: Hardware design of the OHMC2022 Rockling & Swag Badge and OHMC close Retrieved 2026-05-15 · Official source for the Rockling/Swag Badge hardware-design session, Robert Powers credit, FPGA design framing, and KiCad context.