Issue dossier
The maker describes separate GPIO LED-output and button-input options, but does not publish a current/voltage envelope, signal-timing specification, host pin mapping, a DC34 host result, contention protection analysis, switch-state guidance, or tests with other SAO devices. The source's general standard-SAO compatibility claim does not close those gaps.
A linkable camp-impact record with badge context, severity, evidence confidence, and source notes.
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GPIO host behavior, interoperability, and safety boundary · maker-described selectable GPIO paths · behavior depends on the connected host
Readers can identify the intended experimentation surface without assuming every host, GPIO mode, cable, orientation, or shared bus configuration is safe or interoperable.
- Badge
- Root Access SAO (DEF CON 34)
- Category
- GPIO host behavior, interoperability, and safety boundary
- Severity
- note
- Confidence
- maker-described selectable GPIO paths
- Status
- behavior depends on the connected host
- Timeframe
- 2026 pre-event source pass
- Source note
- Root Access SAO product page and RootAccess Interactive SAO How-To Guide.
Evidence
Related Resources
first-party MakeItHackin product listing
Live maker marketplace page for the $50 / 15-sold / 100-listed-total August 4, 2026 seller snapshot, DEF CON 34 framing, BSides Las Vegas and Linq Circle Bar drop labels, cedar build description, ATtiny1616, LEDs, fifty animations, I2C, GPIO, and standard-SAO compatibility claim. Its product photos have no stated reusable license or explicit permission basis.
Badge: Root Access SAO (DEF CON 34)
public MakeItHackin operating guide
Maker-maintained public README describing the ATtiny1616, ten RGB pixels, eleven discrete LEDs, button holds, USERROW persistence, standalone mode, I2C address and controls, status read, independent GPIO circuits, breakout pads, and 100 kHz validated I2C baseline. The public root contains the guide and images but no detected source or license file.
Badge: Root Access SAO (DEF CON 34)
Source trail
Evidence Sources
GitHub / MakeItHackin · retrieved 2026-05-15
Primary maker-published operating guide for the ATtiny1616, 10 RGB pixels, 11 discrete LEDs, 50 animations, physical button, USERROW persistence, I2C address 0x50, rejected malformed raw writes, and separate GPIO behavior. The reviewed public root contains a README and images, not an identified firmware release, hardware archive, source license, or reusable image grant.
Badge: Root Access SAO (DEF CON 34)
MakeItHackin / Uberflux · retrieved 2026-05-15
Primary first-party marketplace source for the DEF CON 34 association, live August 4 availability snapshot, product naming, cedar construction, standard-SAO compatibility claim, standalone animations, host-control framing, GPIO modes, and drop labels. It does not establish final manufacture, delivery, host safety, universal compatibility, DEF CON organizer status, admission, or image reuse permission.
Badge: Root Access SAO (DEF CON 34)