RomHack Camp 2022 Badge
A Cyber Saiyan-designed ESP32-C3 badge for RomHack Camp 2022, with seven RGB LEDs, BLE badge discovery, schedule screens, WiFi/AP functions, snake, a 2.4 inch TFT, two rear buttons, and AA battery power.
RomHack Camp
RomHack Camp 2022
The first RomHack hacker camp in Rome, where Cyber Saiyan produced the RHC22 electronic badge.
Rome · Italy · 2022
Lifecycle
Add-ons & Upgrades
RomHack Camp 2022 Badge
historical
Schedule and WiFi sync screens
The firmware exposed schedule viewing plus AP and schedule-sync modes so attendees could update and interact with camp data from the badge.
RomHack Camp 2022 Badge
historical
Snake game
The fifth firmware screen provided a playable snake game, giving the badge an explicit entertainment surface beyond schedule and discovery functions.
RomHack Camp 2022 Badge
historical
MOCA 2024 firmware branch and hack contest
Cyber Saiyan reused the RHC22 badge as a MOCA 2024 workshop and contest target, publishing a dedicated firmware branch and inviting owners to bring the badge, a PC, and USB cable.
RomHack Camp 2022 Badge
historical
BLE badge radar
The badge advertised itself over BLE with a 1-7 ID and included radar and badge-list screens for discovering nearby badges in camp.
Operational history
Issues & Camp Impact
Badge hacking depended on attendee-supplied USB and battery power.
The official page recommended a micro USB data cable plus replacement AA batteries or a power bank, so a prepared kit mattered for camp hacking.
The RomHack Camp 2022 visual now uses the transparent upstream `img/RHC22_badge_front.png` front render from the public MIT-licensed CyberSaiyanIT/rhc22-badge repository.
The public badge page, image archive, and API point at a licensed upstream raster asset with source and attribution preserved.
Resources
MOCA 2024 badge activities
community event page · Cyber Saiyan's MOCA 2024 page documents a workshop and firmware-hacking contest for the RomHack Camp 2022 badge.
MOCA 2024 firmware branch
firmware branch · Dedicated MOCA 2024 firmware branch for continued RHC22 badge hacking.
RomHack Camp 2022 badge page
official badge page · Official badge feature list, package notes, firmware note, and GitHub link.
RomHack Camp
official event page · Official RomHack camp context for the Italian hacker-camp lineage.
RHC22 badge firmware
source repo · Public CyberSaiyanIT firmware repository with README, build/upload instructions, images, and code.
Sources
Cyber Saiyan: Cyber Saiyan
Retrieved 2026-05-15 · Public community identity for the team credited on the official badge page and repository.
Cyber Saiyan: MOCA 2024
Retrieved 2026-05-15 · Primary source for the MOCA 2024 RHC22 badge workshop, best-firmware-hack contest, and bring-your-badge instructions.
CyberSaiyanIT GitHub: RHC22 Badge
Retrieved 2026-05-15 · Primary firmware and README source for hardware, shipped firmware, toolchain, filesystem upload, and firmware upload instructions.
CyberSaiyanIT GitHub: moca2024 firmware branch
Retrieved 2026-05-15 · Source branch for MOCA 2024 badge firmware continuation.
RomHack: RomHack Camp 2022 - The Badge
Retrieved 2026-05-15 · Primary source for badge package, Cyber Saiyan authorship, hardware feature list, BLE behavior, schedule screens, WiFi functions, and snake game.