Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
The r4venOS community firmware replaces the Pacman firmware with a WiFi scanner, evil-twin detector, deauth, and crypto utility toolkit on the same ESP32 hardware.
Badge context
Community replacement firmware for the RootedCON 2026 ESP32 badge, documenting WiFi scanner, evil-twin detection, deauth, and crypto utilities on the same hardware.
Community repository repurposing the RootedCON 2026 CTF badge as a wireless controller for a fighting robot over ESP32, TFT, and d-pad.
Community repository reversing the RootedCON 2026 Pacman Badge firmware, including arcade mode, Marauder integration, and the native quiz-server CTF protocol, published under GPL-3.0.
David Melendez Cano's public TechFrontiers write-up describes building the PACMAN Ghost attendee boards, their color variants, ESP32-WROOM-32, LiPo/UVLO/USB-debug surface, ESP-NOW CTF architecture, and signed question/answer model. It is direct builder evidence, not an official RootedCON source release or a reusable-image grant.
Official RootedCON source for the March 5-7, 2026 sixteenth edition at Kinepolis, Madrid.
Source trail
A direct April 6, 2026 project-builder account of the RootedCON PACMAN Ghost boards, attendee color choices, ESP32-WROOM-32, power/debug architecture, ESP-NOW game interaction, per-badge identity/key material, and signed CTF-question/answer design. It does not provide an official RootedCON archive, complete production data, image-reuse permission, or a safe operating guide.
Primary community source for the ESP32-D0WD-V3, ST7735 1.77-inch 128x160 display, D-pad, and native quiz-server CTF protocol reconstruction, published under GPL-3.0.
Community source corroborating the ESP32 DevKit hardware and documenting the WiFi auditing custom firmware replacement surface.
Community source corroborating the ESP32, TFT, and d-pad hardware by repurposing the badge as a wireless robot controller.
Primary official source for the March 5-7, 2026 sixteenth edition, Kinepolis Madrid venue, and Spanish cybersecurity-conference context.