BLE-Enabled Bike Stand Controller (MVP)

To address growing urban mobility needs, the client envisioned a smart bike stand system with secure, modular access control. The goal was to enable BLE-based user authentication for individual slots, while keeping the system low-power and scalable for larger deployments. We engineered the firmware on the Particle BSOM B524 platform to control up to 10 electronic locks using I²C GPIO expanders, while monitoring 20 individual door sensors via microswitches. Battery health was tracked in real time using an LTC2943 fuel gauge, and RGB LEDs offered instant status feedback to users and technicians alike. Designed for field deployment, the firmware featured deep sleep modes for long battery life, with optional microSD-based logging for diagnostics. This MVP formed a flexible foundation for future upgrades like OTA updates and cellular connectivity, paving the way for a smarter urban parking network.

The system delivered a robust and energy-efficient access controller that secured multiple bike slots via BLE. With flexible expansion options, the MVP positioned the client for a full-scale smart mobility rollout in urban infrastructure.