Series
NUS Greyhats' Singapore cybersecurity summit and GreyCTF badge lineage, represented by the source-backed 2025 GreyMecha/Army GreyBadge with RP2350, CircuitPython, ECP5 FPGA, KiCad hardware, and public challenge firmware.
NUS Greyhats' Singapore cybersecurity summit and GreyCTF badge lineage, represented by the source-backed 2025 GreyMecha/Army GreyBadge with RP2350, CircuitPython, ECP5 FPGA, KiCad hardware, and public challenge firmware.
Badges
Singapore RP2350 and ECP5 FPGA challenge badge
NUS Greyhats' public GreyBadge archive identifies the 2025 GreyCTF badge as GreyMecha/Army, with RP2350-side CircuitPython firmware, KiCad hardware files, an ECP5U_25 FPGA schematic, GC9A01 SPI display, Li-ion power-path circuitry, summit UF2/filesystem releases, and named challenge apps.