Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
The official h-c0n badge post says the CTF BADge is a fully functional development board that can be used for personal projects, not only an ornament.
Badge context
Official agenda page corroborating February 5 workshops, February 6 workshops and talks, and February 7 talks in the Madrid h-c0n 2026 programme.
Official badge-specific announcement for the electronic CTF BADge, development-board claim, David Reguera / Dreg credit, pickup timing, CTF window, prizes, wait-list, and 10 EUR in-person extra-badge note.
Official Hackplayers h-c0n home page for the 5-7 February 2026 event dates, Hackplayers conference framing, and navigation to agenda, location, and ticketing.
Official location page for the Madrid venue trail, including Centro Cultural Sanchinarro at Princesa de Eboli 29 and Exe Madrid Norte workshop/hotel context.
Hackplayers post-event recap for the hardware-hacking CTF, naming badge co-creators, describing the repository's firmware/tooling scope, and linking the first three winner write-ups without providing reusable badge-image rights.
Public MIT-licensed repository for the HC0N 2026 hardware CTF, including the ctf.uf2 firmware, RP2350/RISC-V notes, serial and picotool workflows, debugging requirements, and winner write-ups.
Source trail
Public repository source for the RP2350/RISC-V hardware CTF, ctf.uf2 firmware image, GPIO 25 LED requirement, serial configuration, picotool workflows, hardware-debugging requirement, and first/second/third winner write-ups.
Post-event source saying Hackplayers' sixth edition realized its electronic badge dream thanks to David Reguera / @therealdreg with help from Adria Perez Montoro / @b1n4ri0 and Antonio Vazquez Blanco / @antoniovazquezblanco; it also summarizes the repository, firmware-analysis tooling, debugging interfaces, dynamic-analysis material, and winner write-up themes.
Primary badge-specific source for the electronic badge wording, fully functional development-board description, sixth-edition framing, Dreg credit, February 6 pickup/CTF start, February 13 CTF end, wait-list, and 10 EUR extra-unit note.
Official source for the Madrid venue context, including Centro Cultural Sanchinarro and Exe Madrid Norte locations used in the 2026 event trail.
Official agenda source for February 5-7, 2026 scheduling across workshops and talks, including Centro Cultural Sanchinarro talk days.
Primary official source for the 5-7 February 2026 h-c0n event dates, Hackplayers conference framing, and current event navigation.