Issue dossier
The HFSDR repository release list still has v1.0 on 2026-04-29 and v1.1 on 2026-05-18 as of the 2026-05-21 recheck, but public sources still do not confirm shipped quantity, every final manufactured-unit revision, or official admission-badge status.
A linkable camp-impact record with badge context, severity, evidence confidence, and source notes.
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post-event release scope · repository release trail plus first-hand community post · post-event firmware release found; latest rechecked
The record is stronger for firmware artifacts but remains classified as community/unofficial unless an official DEF CON source identifies it as the official conference badge.
- Badge
- DEF CON Singapore 2026 HFSDR Badge
- Category
- post-event release scope
- Severity
- note
- Confidence
- repository release trail plus first-hand community post
- Status
- post-event firmware release found; latest rechecked
- Timeframe
- DEF CON Singapore and May 2026 release trail
- Source note
- HFSDR v1.0 and v1.1 release pages, GitHub API releases listing rechecked 2026-05-21, r/Defcon HFSDR preorder post, and DEF CON Singapore event page.
alternate web UI source
Hackin7 repository UI source tree for the related Lain-themed interface; the GitHub Pages deployment timed out during a May 21, 2026 reachability check.
Badge: DEF CON Singapore 2026 HFSDR Badge
community preorder
Hackin7's r/Defcon preorder post documenting the DEFCON SG collection context, kit contents, pricing, SDR/FM/waterfall/FFT features, soldering kit details, and link to the public HFSDR repository.
Badge: DEF CON Singapore 2026 HFSDR Badge
community source
Earlier Hackin7 post establishing the public development thread for a DEFCON SG SDR badge and linking forward to the preorder thread.
Badge: DEF CON Singapore 2026 HFSDR Badge
event page
Official DEF CON page documenting the April 28-30, 2026 Singapore conference at Marina Bay Sands; it anchors the event context but does not label the HFSDR as the official event badge.
Badge: DEF CON Singapore 2026 HFSDR Badge
firmware documentation
Firmware build and flash notes for the CH32V305 SDR target, including CMake/Ninja/toolchain setup and wchisp flashing workflow.
Badge: DEF CON Singapore 2026 HFSDR Badge
firmware release
Release published during DEF CON Singapore on 2026-04-29 with an hfsdr.elf asset, anchoring a post-event firmware artifact beyond preorder text.
Badge: DEF CON Singapore 2026 HFSDR Badge
firmware release
Post-event release published 2026-05-18; release notes document new graphics and a USB streaming reliability fix.
Badge: DEF CON Singapore 2026 HFSDR Badge
hardware and firmware archive
Public HFSDR archive preserving host software, CH32V305 firmware, KiCad hardware tree, scripts, documentation, WebUSB links, portable mode notes, and project credits.
Badge: DEF CON Singapore 2026 HFSDR Badge
protocol documentation
Repository guide documenting Python and GNU Radio host examples, USB vendor/product/interface details, bulk endpoints, sample-stream format, and WebUSB landing-page descriptor request.
Badge: DEF CON Singapore 2026 HFSDR Badge
user manual
Repository-linked user manual slide deck for the HFSDR device.
Badge: DEF CON Singapore 2026 HFSDR Badge
web UI source
Repository UI source tree for the WebUSB interface used to pair, configure frequency and gain, and display the SDR waterfall; the GitHub Pages deployment timed out during a May 21, 2026 reachability check.
Badge: DEF CON Singapore 2026 HFSDR Badge
DEF CON · retrieved 2026-05-15
Official event-context source for the April 28-30, 2026 DEF CON Singapore conference at Marina Bay Sands; this source does not identify the HFSDR as an official DEF CON badge.
Badge: DEF CON Singapore 2026 HFSDR Badge
GitHub / rhgndf · retrieved 2026-05-15
Primary firmware source for CH32V305 SDR target build prerequisites and flashing workflow.
Badge: DEF CON Singapore 2026 HFSDR Badge
GitHub / rhgndf · retrieved 2026-05-15
Primary protocol source for Python/GNU Radio host workflows, USB IDs/interface/endpoints, I/Q sample reconstruction, stream format, and WebUSB descriptor behavior.
Badge: DEF CON Singapore 2026 HFSDR Badge
GitHub / rhgndf · retrieved 2026-05-15
Release source published 2026-04-29 with an hfsdr.elf artifact, giving the HFSDR record a post-event firmware-release anchor.
Badge: DEF CON Singapore 2026 HFSDR Badge
GitHub / rhgndf · retrieved 2026-05-15
Release source published 2026-05-18 documenting new graphics and a USB streaming reliability fix.
Badge: DEF CON Singapore 2026 HFSDR Badge
GitHub / rhgndf · retrieved 2026-05-15
Primary repository source for HFSDR host software, firmware, hardware design tree, CH32V305 firmware path, WebUSB links, portable mode behavior, user manual link, and project credits.
Badge: DEF CON Singapore 2026 HFSDR Badge
r/Defcon / Hackin7 · retrieved 2026-05-15
Earlier public source tying Hackin7 to development of a DEFCON SG SDR badge and documenting the intended FM/SDR scope before preorder publication.
Badge: DEF CON Singapore 2026 HFSDR Badge
r/Defcon / Hackin7 · retrieved 2026-05-15
First-hand community preorder source for DEFCON SG pickup, HFSDR kit contents, SMA/antenna/encoder/screen/LED parts, 50-60 SGD pricing, RF up to 300 MHz, onboard FM demodulation, waterfall/FFT display, LiPo charger, reprogrammability, and repository link.
Badge: DEF CON Singapore 2026 HFSDR Badge