DEF CON Singapore
The April 28-30, 2026 official DEF CON Singapore conference at Marina Bay Sands, represented here by the official DC-SG-1 attendee badge, a source-backed unofficial/community HFSDR badge, HTX Public Safety Village badge artifact, CSIT TISC finalist ESP32 challenge trinket, and a maker-labelled Div0 Tingkat eBadge whose firmware and repository event labels conflict; no non-DC-SG-1 record is treated as a universal admission badge.
Marina Bay Sands, Singapore · Singapore · 2026
The inaugural DEF CON Singapore attendee badge, DC-SG-1, is an official electronic badge issued to ticket holders. Public event workshop and game documentation identifies an ESP32-C6 platform with eight megabytes of flash, an interactive hardware-hacking workflow, USB-C access, and a conference-wide infrared Laser* Tag game.
A community HFSDR badge preorder for DEF CON Singapore 2026, documented through Hackin7's r/Defcon preorder post and the linked public rhgndf/hfsdr hardware, firmware, host-software, and WebUSB archive.
HTX's official DEF CON Singapore coverage documents Public Safety Village badges, including a badge image described as featuring illuminated icons of emergency vehicles, alongside the first DEF CON Public Safety Village.
A source-backed TISC@DEF CON SG finals challenge artifact: CSIT's official C517 page documents the on-site TISC finals, and a finalist writeup says each of the top-50 finalists received an ESP32 hardware trinket running a customized BLE mesh chat protocol to reverse engineer.
RestiaAshdoll8's public DEFCON-SG-2026-Div0-Tingkat-eBadge repository says it contains source code and relevant files used in a physical Div0 Tingkak eBadge. It preserves a UF2, RP2040/Pico-focused source, artwork, and SAO project files. Its sources conflict on event identity: the repository title names DEF CON Singapore while its firmware menu banner says SINCON 2026 BADGE. This record keeps the DEF CON Singapore association maker-declared rather than resolving that conflict into official event status.
Lifecycle
The finalist writeup says each TISC@DEF CON SG finals participant was handed an ESP32 hardware trinket for one of the on-site challenges.
Hackin7's preorder post offered the HFSDR badge for collection at DEFCON SG, with battery and no-battery kit pricing and possible later handoff at Hackaday Europe or DEFCON US.
The public DC-SG-1 badge talk describes the electronic hacker badge as given to ticket holders for entry to DEF CON Singapore.
The Cryptocurrency Village workbook lists feature, simulator, and development workshops for the badge, including an ESP-IDF toolchain workflow and USB Type-C cable requirement.
CSIT documents TISC@DEF CON SG as an online qualifier followed by on-site finals, while the finalist writeup says the top 50 finalists qualified and had six hours for five challenges.
Badges retained hit records locally and periodically synchronized results through internet-connected exhibit-hall base stations using ESP-NOW with periodic channel and data-rate hopping.
The GitHub release trail now includes v1.0 during DEF CON Singapore and v1.1 afterward, with v1.1 documenting new graphics and a USB streaming reliability fix.
The preorder kit included solderable LEDs/resistors and SMA connector work, plus badge PCB, antenna, encoder, and screen.
The host guide documents a Python probe and GNU Radio examples for streaming samples from the HFSDR USB device.
Every powered-on official badge played an infrared Laser* Tag game with five color teams, valid-hit cooldowns, and individual contributions to aggregate team scores.
The programme invited attendees to explore the Infocomm Z-Machine simulator with I/O on the USB CDC console and optionally program the badge.
The official badge supported the public OpenLASIR infrared protocol, allowing compatible third-party devices to join the game while tracking official and third-party interactions separately.
The repository README documents rotary-encoder controls for FM audio output and cycling LED modes when the device is used without a PC.
The HTX Public Safety Village page ties the village to AI and IoT public-safety challenges and says top HTX CTF finalists unlocked limited-edition DEF CON Singapore Public Safety Village swag.
HTX's launch report image metadata identifies a Public Safety Village badge featuring illuminated icons of emergency vehicles; no component or firmware details are public.
The repository describes pairing through the WebUSB UI, setting frequency and gain, pairing again, and then observing the waterfall.
The trinket ran a customized mesh chat protocol over BLE, with the challenge requiring reverse engineering to gain access to an administrative system broadcasting over the protocol.
Operational history
The catalogue includes it as a source-backed C517 Village challenge artifact while avoiding an official admission-badge claim.
The record treats the score and synchronization system as documented event-time behavior, not a permanently available badge service.
The entry retains a useful public firmware trail without turning it into operating instructions, a security challenge walkthrough, a guarantee of USB behavior, or proof of a final event configuration.
The dossier describes only the substantiated hardware and software surface instead of inferring a complete board design or claiming that the separate OpenLASIR repository is DCSG1 firmware.
Hardware and software claims stay limited to the finalist writeup's challenge description.
Hardware claims are limited to preorder text, repository structure, README behavior, and host-guide protocol documentation.
Readers can inspect the source-backed electronic surface without treating it as an electrical guarantee, a safe host/SAO compatibility statement, a full open-hardware release, or proof of how many real badges were made or received.
The record documents the verified village badge artifact without inventing electronics, firmware, production, or distribution details.
No repository art, PNG, screenshot, source graphic, social image, or generated approximation is copied into the public image directories; the record remains source-linked and image-free pending complete reusable-image provenance.
The record preserves the maker-declared DEF CON Singapore association while explicitly avoiding a claim of DEF CON or SINCON official issuance, attendee-wide allocation, organizer authorization, sponsor status, credential function, or an event-specific final handoff.
The official Singapore attendee-badge record remains image-free rather than copying a guide illustration, social post, documentation screenshot, or generated approximation.
The record remains image-free rather than copying the HTX article photo, using a documentation screenshot, or substituting generated badge art.
The Singapore C517 record remains source-backed and image-free rather than copying an article photo, screenshot, or generated substitute.
The Singapore record remains source-backed and image-free rather than copying source-page media, documentation screenshots, event photos, social media, placeholders, or generated approximations.
The Singapore record remains source-backed and image-free rather than copying social-media previews, repository screenshots, repository artwork, or generated imagery.
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.
The catalogue cites repository facts as public evidence but does not reuse repository images, hardware files, or code assets as licensed local content.
The record is included as a source-backed community badgelife artifact connected to DEF CON Singapore, not as an official DEF CON badge claim.