DragonJARCON 2025 NFC Hardware Badge
A conservative Colombian DragonJARCON 2025 record for an optional electronic hardware badge and a separate DragonJARCON 2025 NFC hacking badge raffle limited to 100 units.
DragonJAR Security Conference
DragonJAR Security Conference 2025
The September 10-11, 2025 Medellin DragonJARCON edition whose official pages document an optional paid electronic hardware badge plus a limited DragonJARCON 2025 NFC hacking badge raffle.
Centro de Eventos El Tesoro, Medellin · Colombia · 2025
Lifecycle
Add-ons & Upgrades
DragonJARCON 2025 NFC Hardware Badge
source-backed
LED key transposition challenge
The repository documents a challenge where the badge emits the encrypted text OIMXEXEXDXLXANYLOXMX and transmits the key MALUMABEBE through LED timing before validating SOLVE:YOAMOMEDELLIN.
DragonJARCON 2025 NFC Hardware Badge
source-backed
100-unit NFC hardware-hacking badge
DragonJAR's badge page describes an exclusive DragonJARCON 2025 badge with NFC hacking functions and says only 100 exist.
DragonJARCON 2025 NFC Hardware Badge
source-backed
USB CDC NDEF command interface
The badge exposes USB CDC commands for URI, TEXT, VCARD, HELP, ABOUT, STATUS, CHALLENGE, LEDS, and SOLVE, with serial operation documented at 115200 baud.
DragonJARCON 2025 NFC Hardware Badge
source-backed
CH32V203 NFC badge platform
Electronic Cats documents a CH32V203G6U6 RISC-V MCU, SSD1306 OLED, NT3H2111 NFC tag, eight RGB LEDs, four buttons, USB-C, and KiCad hardware files.
Operational history
Issues & Camp Impact
No local DragonJARCON 2025 badge image has been added because a rights-cleared original photo, exact source URL, attribution, and processing notes have not been verified.
The record stays source-backed and image-free rather than copying form or event-page images without complete reuse provenance.
The Electronic Cats repository now proves badge components, firmware, commands, KiCad files, and the challenge flow, but this pass still does not verify final shipped-unit variations, attendee-specific provisioning, or rights-cleared documentary photos.
The dossier can use component-level and firmware claims from the repository while still keeping image and distribution details conservative.
Resources
DragonJARCON 2025 badge raffle
badge page · Official DragonJAR page documenting the exclusive DragonJARCON 2025 badge with NFC hacking functions and 100-unit scarcity.
DragonJAR Security Conference 2025
event page · Official event source for September 10-11, 2025 Medellin context, event positioning, optional electronic hardware badge wording, and limited workshop/badge availability.
ElectronicCats badge-dragonJar-2025 repository
hardware and firmware source · Public repository documenting the official badge's CH32V203G6U6 RISC-V MCU, SSD1306 OLED, NT3H2111 NFC tag, LEDs, buttons, USB CDC command interface, firmware, and KiCad files.
Sources
DragonJAR: Ganate una herramienta de Hardware hacking
Retrieved 2026-05-15 · Primary badge source for an exclusive DragonJARCON 2025 badge with NFC hacking functions and 100-unit limitation.
DragonJARCON: Congreso de Hackers - DragonJAR Security Conference
Retrieved 2026-05-15 · Primary source for event dates, Medellin venue, Spanish-language hacker-conference framing, and optional electronic hardware badge with limited availability.
Electronic Cats: ElectronicCats/badge-dragonJar-2025
Retrieved 2026-05-15 · Primary repository source for official DragonJARCON 2025 badge hardware components, firmware tree, KiCad files, USB CDC commands, NDEF features, and integrated LED-key transposition challenge.