M5Stack Tough sensor hub publishing sensor data from BME680, SFA30, MLX90614 via MQTT, BLE, LoRaWAN

Real-time IoT-based monitoring system for suspension bridges using vibration sensors, sag distance measurement, and intelligent safety algorithms. Features BLE sensor networks, Kalman filtering, and a live Grafana dashboard for proactive bridge health management and automated boom gate control.

ESP32 BLE GATT Service Example