Hack&Roll 2026 Quack & Roll Badge
NUS Hackers' Hack&Roll 2026 introduced the event's first custom PCB badge, documented by the organizer recap, a Friday Hacks making-of talk, and a public MIT-licensed ESP-IDF firmware and component archive.
Hack&Roll
Hack&Roll 2026
The January 17-18, 2026 NUS Hackers student hackathon in Singapore whose organizers introduced their first custom PCB badge, later documented through a public ESP-IDF firmware and I/O component archive.
CAPT / RC4, National University of Singapore · Singapore · 2026
Lifecycle
Add-ons & Upgrades
Hack&Roll 2026 Quack & Roll Badge
source-backed
hnr26_badge ESP-IDF component
The Espressif component package exposes badge-specific control of Hack&Roll 2026 LEDs and buttons through the built-in GPIO expander.
Hack&Roll 2026 Quack & Roll Badge
source-backed
Quack & Roll making-of talk
Friday Hacks #287 framed the badge as an electronic-badge production story for over 1,000 units, spanning artwork, electronics/code, assembly, and programming.
Hack&Roll 2026 Quack & Roll Badge
source-backed
Dice LED/button firmware
The firmware README and main C source document a simple dice-lighting program driven by badge buttons and LEDs.
Hack&Roll 2026 Quack & Roll Badge
source-backed
ESP32-C3 badge core
The public repository acknowledgements say Espressif Systems sponsored ESP32-C3-WROOM-02-N4 modules for the Hack&Roll 2026 hardware badge.
Operational history
Issues & Camp Impact
Hack&Roll is a student-run hackathon rather than a traditional security conference, but the organizer source frames the event around hacker culture and documents a real custom PCB event badge.
The record is included as a hackable hacker-culture event artifact while keeping the event type explicit.
The recovered public repository documents firmware and components but does not expose schematics, PCB layout files, BOM, Gerbers, or full manufacturing files for the badge.
Hardware claims stay limited to the organizer posts, repository README, code, component registry, and acknowledgements.
NUS Hackers published event imagery, but no Hack&Roll 2026 badge image is promoted because this pass did not establish an explicit reusable image license, attribution basis, and processing provenance for catalogue publication.
The Singapore record remains source-backed and image-free rather than copying event photos or documentation screenshots without a complete image provenance record.
The public code is a badge workshop/demo firmware that lights dice LEDs from button input, so it is not treated as proof of every firmware image or challenge shipped during Hack&Roll 2026.
The software section separates the recoverable ESP-IDF workshop code from any unrecovered event firmware or private production tooling.
Resources
hnr26_badge ESP-IDF component
component registry · Espressif Component Registry entry for the NUS Hackers hnr26_badge component used to control LEDs and buttons on the Hack&Roll 2026 badge via the built-in GPIO expander.
Hack&Roll 2026 firmware README
firmware documentation · Repository README for the firmware tree, dice-lighting behavior, hnr26_badge and aw9523 dependencies, and generated documentation notes.
Hack&Roll 2026 badge workshop repository
firmware source · MIT-licensed NUS Hackers repository preserving ESP-IDF workshop firmware for the Hack&Roll 2026 hardware badge, component dependencies, documentation links, and badge acknowledgements.
Hack&Roll 2026 main firmware
firmware source · ESP-IDF C entrypoint showing hnr26_badge initialization, button polling, virtual-pin updates, dice LED control, and 100 ms loop timing.
Friday Hacks #287 Quack & Roll
making-of talk · NUS Hackers talk page for making an electronic badge for over 1,000, covering ideation, artwork, electronics/code, assembly, and programming.
Hack&Roll 2026 recap
organizer recap · NUS Hackers recap describing Hack&Roll 2026, Singapore student-hackathon context, January cadence, and the first custom PCB badge participants personalized and hacked during the weekend.
Hack&Roll 2026 badge workshop license
repository license · Repository MIT license naming NUS Hackers as the 2026 copyright holder for the public firmware/workshop archive.
Sources
Espressif Component Registry: hnr26_badge
Retrieved 2026-05-15 · Component registry source for the NUS Hackers MIT-licensed hnr26_badge package that controls LEDs and buttons on the Hack&Roll 2026 badge via the built-in GPIO expander.
NUS Hackers: Friday Hacks #287: Quack & Roll
Retrieved 2026-05-15 · Organizer talk source for the badge's Quack & Roll name, 1,000+ electronic-badge making-of framing, and named Terence/Yik Jin speaker context.
NUS Hackers: Hack&Roll 2026: Singapore's largest student-run hackathon
Retrieved 2026-05-15 · Organizer source for the 2026 event context, first custom PCB badge statement, participant personalization/hacking behavior, and hackathon scale.
NUS Hackers / GitHub: LICENSE.md
Retrieved 2026-05-15 · Repository license source establishing the MIT basis for the public firmware/workshop code archive, not for copying event photos into the catalogue.
NUS Hackers / GitHub: firmware README
Retrieved 2026-05-15 · Primary repository documentation for the dice-lighting firmware behavior, hnr26_badge badge-specific I/O component, aw9523 GPIO-expander dependency, and documentation path.
NUS Hackers / GitHub: nushackers/hnr26-badge-workshop
Retrieved 2026-05-15 · Primary public source for the ESP-IDF workshop firmware archive, Hack&Roll 2026 hardware-badge scope, ESP32-C3-WROOM-02-N4 sponsor note, component dependencies, documentation links, and acknowledgements.