BSidesPDX 2019 · United States · 2019

BSidesPDX 2019 Multnomah Badge

ATtiny85 LED badge archive

The BSidesPDX 2019 Multnomah badge is a source-backed Portland Security BSides badge archive tied to the official schedule's badges-and-contests context and the public PDX Badgers KiCad, BOM, and firmware repository.

BSidesPDX Portland Oregon United States Security BSides Multnomah ATtiny85 KiCad LED CR2032 North America

EventBSidesPDX 2019

SeriesBSidesPDX

LocationOregon Convention Center, Portland, Oregon

CountryUnited States

People

Authors & Credits

badge repository publisher

PDX Badgers

GitHub organization publishing the BSidesPDX 2019 Multnomah KiCad, BOM, and firmware archive.

Source

event and official schedule publisher

BSidesPDX

Official publisher for the 2019 schedule and venue pages used to anchor the Multnomah badge archive to BSidesPDX.

Source

Why It Mattered

It preserves a small regional Security BSides badge design from public primary sources while keeping the record image-free and license-limited because the recovered repository has no GitHub license metadata or reusable badge photo.

Hardware

The `badge-2019` repository exposes `multnomah.kicad_pcb`, `multnomah.sch`, a KiCad project/netlist, local footprints, and `BoM.csv`. The BOM lists 24 blue side-view 1206 LEDs, one ATtiny85-20SUR microcontroller, four 56 ohm 1206 resistors, one CR2032 battery holder, and one DPDT slide switch.

Software & Apps

The repository's `multnomah.ino` Arduino-style firmware defines two PWM outputs and loops through sine/cosine analogWrite values, creating a two-channel LED animation pattern for the badge.

Lore

The official Friday schedule places BSidesPDX 101 at 11:00, covering CTF, contests and events, badges, and more. The catalogue treats the public Multnomah repository as the badge's hardware/software archive while leaving talk details, final quantities, and photos to future source recovery.

Lifecycle

Add-ons & Upgrades

event context official schedule

BSidesPDX 101 badges context

The official schedule says BSidesPDX 101 covered CTF, contests and events, badges, and more on Friday morning.

Compatibility: BSidesPDX 2019 Multnomah Badge

Source

firmware behavior source-backed

Two-channel PWM LED animation

The firmware defines two PWM pins and repeatedly writes sine/cosine-derived brightness values, giving the LED badge a simple animated lighting pattern.

Compatibility: BSidesPDX 2019 Multnomah Badge

Source

hardware architecture source-backed

ATtiny85 LED badge core

The repository BOM lists an ATtiny85-20SUR microcontroller and 24 blue side-view LEDs as the badge's main active components.

Compatibility: BSidesPDX 2019 Multnomah Badge

Source

manufacturing archive source-backed

KiCad Multnomah hardware archive

The repository preserves the Multnomah KiCad PCB, schematic, project, netlist, footprint table, symbol table, and local footprint directory.

Compatibility: BSidesPDX 2019 Multnomah Badge

Source

power architecture source-backed

CR2032 and slide-switch power path

The BOM lists a CR2032 battery holder and DPDT slide switch for the badge's portable power/control hardware.

Compatibility: BSidesPDX 2019 Multnomah Badge

Source

Operational history

Issues & Camp Impact

distribution-scope caveat note

The official schedule proves a badges-related BSidesPDX 101 session and the repository proves a badge archive, but this pass did not recover an attendee-wide distribution statement, quantity, assembly note, or final handout logistics.

The catalogue records a source-backed BSidesPDX 2019 badge archive without overclaiming distribution scope.

Confidence: official schedule plus repository
Status: documented
Timeframe: 2019 archive pass
Source note: BSidesPDX 2019 schedule and pdxbadgers/badge-2019.

missing rights-cleared image note

No BSidesPDX 2019 Multnomah badge image is published because this pass did not recover a physical documentary photo or full official upstream raster render with source URL, license or permission basis, attribution, and processing notes.

The entry remains source-backed and image-free rather than copying board files, logos, event-page imagery, social photos, screenshots, or generated visuals.

Confidence: local project policy
Status: needs licensed original replacement
Timeframe: current catalogue build
Source note: badge.gallery image policy, BSidesPDX official pages, and pdxbadgers/badge-2019 repository.

repository-license caveat note

GitHub reports no repository license for `pdxbadgers/badge-2019`, and no top-level LICENSE file was recovered in the repository listing.

The catalogue cites the repository as evidence but does not republish repository media or treat the design files as reusable image assets.

Confidence: GitHub repository metadata
Status: needs explicit license recovery
Timeframe: 2019 archive pass
Source note: pdxbadgers/badge-2019 repository metadata and contents listing.

technical-source caveat note

The public repository exposes KiCad, BOM, and simple firmware files, but this pass did not recover assembly instructions, final firmware release notes, challenge docs, production photos, or talk notes explaining intended gameplay.

Hardware and firmware claims remain limited to the public repository files and official schedule wording.

Confidence: public source archive
Status: needs final production archive
Timeframe: 2019 archive pass
Source note: pdxbadgers/badge-2019 and BSidesPDX 2019 schedule.

Resources

BSidesPDX 2019 contests and events official event context · Official contests/events page documenting the CTF and event-activity context referenced by the BSidesPDX 101 schedule slot. BSidesPDX 2019 schedule official schedule · Official BSidesPDX schedule source for the October 25-26, 2019 event dates and the BSidesPDX 101 session covering CTF, contests, events, badges, and more. BSidesPDX 2019 venue official venue page · Official venue source for Oregon Convention Center, Lobby D, 777 NE Martin Luther King Jr Blvd, Portland, Oregon. Multnomah BoM.csv bill of materials · Repository BOM source for ATtiny85-20SUR, 24 blue side-view LEDs, CR2032 battery holder, slide switch, and resistor claims. multnomah.ino firmware source · Arduino-style firmware source for two PWM outputs and sine/cosine analogWrite animation behavior. multnomah.kicad_pcb board file · KiCad PCB source used as evidence of a concrete hardware design; no board artwork or render is reused as a hero image. multnomah.sch schematic · KiCad schematic source used for the hardware archive trail. pdxbadgers/badge-2019 repository hardware and firmware source repo · Public PDX Badgers repository preserving the Multnomah KiCad board/schematic/netlist/project, BOM, local footprints, and Arduino firmware archive.

Sources

BSidesPDX: Schedule Retrieved 2026-05-15 · Primary official event source for BSidesPDX 2019 dates and the Friday BSidesPDX 101 schedule slot that explicitly includes badges. BSidesPDX: Venue Retrieved 2026-05-15 · Primary official venue source for Oregon Convention Center, Lobby D, and Portland address context. GitHub / PDX Badgers: pdxbadgers/badge-2019 Retrieved 2026-05-15 · Public repository source for the Multnomah KiCad/BOM/firmware badge archive. GitHub / PDX Badgers: BoM.csv Retrieved 2026-05-15 · BOM source for the ATtiny85, 24 side-view LED, CR2032 battery holder, slide switch, and resistor claims. GitHub / PDX Badgers: multnomah.ino Retrieved 2026-05-15 · Firmware source for two PWM outputs and sine/cosine analogWrite animation behavior. GitHub / PDX Badgers: multnomah.kicad_pcb Retrieved 2026-05-15 · KiCad board-file source proving a concrete Multnomah PCB archive. GitHub / PDX Badgers: multnomah.sch Retrieved 2026-05-15 · KiCad schematic source for the Multnomah hardware archive.