SINCON
The Singapore SINCON Reloaded 2023 edition held 5-6 January 2023 at Voco Orchard Singapore, where the first SINCON badge became a Khong Guan Building-shaped interactive CTF badge.
Voco Orchard Singapore, Singapore · Singapore · 2023
SINCON 2023's first badge was a Khong Guan Building-inspired interactive CTF badge with a custom single-sided PCB, ABOV A96S174 MCU, CH340G USB-serial bridge, micro-USB, CR2032 holder, 12 MHz crystal, SMD passives, and 1206 LEDs.
Lifecycle
The badge CTF uses serial interaction, OSINT, crypto, and stegano story challenges, six floor unlocks, elevator navigation, remembered flags, and a final trophy/leaderboard prompt.
The badge is played by turning off battery power, connecting micro-USB, opening a terminal or Arduino IDE serial monitor at 9600 baud with Both NL & CR, and sending three stars to enter CTF mode.
The SINCON hardware village used the badge for a soldering activity with tiny SMD LEDs mounted upside down, pairing hardware work with the software CTF.
Operational history
The Singapore entry remains source-backed and image-free rather than copying project photos without a complete image provenance record.
The dossier records the observable hardware and serial CTF flow while avoiding unsupported repository or source-code claims.