Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
The hardware tree includes an ECP5U_25 CABGA256 schematic and the firmware tree includes ECP5 projects, tests, and a UART coprocessor example with open FPGA tooling notes.
Badge context
FPGA-related tree with main, tests, and uart_coprocessor projects referenced by the README tooling notes.
Public GreyBadge repository whose GitHub description identifies GreyMecha/Army as the GreyCTF 2025 badge.
Official NUS Greyhats summit page used for event title, Singapore summit context, July 5, 2025 date, and NUS School of Computing COM1 venue.
Release trail with summit_v1/summit_v2 UF2 and filesystem assets, finals firmware assets, and prototype PCB production assets.
RP2350 filesystem README documenting CircuitPython basis, image customization, challenge names, update guidance, and contributor credits.
KiCad project directory with greybadge PCB, RP2350, ECP5 FPGA, TinyFPGA, JLCPCB, library, and production files.
Release preserving BOM, CPL, Gerber ZIP, and schematic PDF assets for the public hardware ordering workflow.
Repository README documenting GreyMecha/Army, CircuitPython setup, hardware ordering notes, FPGA tooling, repository structure, and links to badge manual/talk slides.
Source trail
Hardware source for the KiCad project tree, RP2350 sheet, ECP5U_25 FPGA sheet, main schematic, display, power, D-pad, buzzer, PMOD, FPGA programming, and RP2350-FPGA interlink evidence.
Firmware source for the CircuitPython basis, GreyCTF finals challenge names, image customization behavior, update guidance, and named contributor credits.
Primary badge repository source for the GreyMecha/Army badge name, CircuitPython setup, firmware filesystem path, hardware-ordering workflow, separate screen/battery ordering notes, and FPGA tooling.
Primary public release trail for summit_v1 and summit_v2 UF2/filesystem firmware assets plus finals and prototype hardware-order assets.
Official event-context source for the GreyCTF Summit 2025 name, Singapore summit framing, July 5, 2025 date, and NUS School of Computing COM1 venue.