Add-on dossier
RP2040 curved blue LED display platform
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
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maker-documented hardware platform
The README identifies an RP2040 with 264 KB SRAM and 1 MB XIP flash driving a 38 by 5 curved blue C-LED virtual display arranged as a 12 by 16 PWM matrix. It names a stated maximum average output of about 2 mA per LED. These are maker-published specifications, not an independent electrical, optical, thermal, or per-unit validation.
- Badge
- Cobalt DC34 Badge
- Type
- maker-documented hardware platform
- Status
- post-event public source documentation
- Compatibility
- Cobalt DC34 maker documentation only; no general RP2040, LED, badge-host, or DEF CON hardware compatibility claim
- Source
- https://git.trueserve.org/trueControl/dc34-cobalt/src/commit/810567dc327c0fd7a17d4783e93f99b870dc17da/README.md
Badge context
Related Resources
maker-published badge index
The trueControl BASIC index lists Cobalt DC34 under DEF CON 34 at LVCC and labels it a corporate commission. It establishes the publisher's own event association and classification, not DEF CON issuance, a commissioning party, funding, allocation, attendee eligibility, or a completed handoff.
Badge: Cobalt DC34 Badge
maker-published firmware and schematic archive
Public trueControl repository for Cobalt DC34. Its description calls it a RP2040-driven badge, and its committed source tree includes firmware and a schematic directory. Public availability is evidence of an archive, not a reusable-image or broad source-license grant.
Badge: Cobalt DC34 Badge
maker-published firmware source tree
Public repository path for the firmware source tree referred to by the README. No versioned release, immutable deployment manifest, source-to-unit mapping, or explicit reuse licence was recovered in this pass.
Badge: Cobalt DC34 Badge
maker-published hardware and operating documentation
Primary technical documentation for the stated DEF CON 34 badge association, RP2040 platform, blue LED matrix, accelerometer, ambient-light behavior, touch/button interface, USB-C programming/update paths, and Pico SDK build context. It does not establish final per-unit configuration, manufacture, recipient allocation, or safe servicing.
Badge: Cobalt DC34 Badge
Source trail
Evidence Sources
trueControl · retrieved 2026-09-07
Primary maker-published index placing Cobalt DC34 in the DEF CON 34 / LVCC catalogue and calling it a corporate commission. It does not identify the commissioner, establish DEF CON ownership or authorization, prove production, or document distribution.
Badge: Cobalt DC34 Badge
trueControl / trueserve Git · retrieved 2026-09-07
Primary maker documentation explicitly describing firmware and board schematic for the Cobalt Badge at DEF CON 34, its hardware surface, user interaction, build context, and UF2 upload procedure. It does not establish final hardware parity, completed commissioning, allocation, electrical safety, or ongoing support.
Badge: Cobalt DC34 Badge
trueControl / trueserve Git · retrieved 2026-09-07
Primary source-tree location for the firmware referenced by the Cobalt README. No tagged release, immutable factory image, signed binary, or explicit reuse licence was recovered from the reviewed public material.
Badge: Cobalt DC34 Badge
trueControl / trueserve Git · retrieved 2026-09-07
Primary public maker archive for the Cobalt DC34 badge. The repository description calls it a RP2040-driven badge, and the current tree records post-event source activity. It is not a manufacturing record, credential record, or image-reuse grant.
Badge: Cobalt DC34 Badge