Hardware & IoT
Smart Campus Security & Environmental Monitoring
A real-time hardware monitoring station leveraging MQTT for telemetry and remote visualization.
Overview
This system bridges the physical and digital worlds by gathering localized campus data and transmitting it securely to a cloud dashboard. It serves as a proof-of-concept for scalable, low-cost smart campus infrastructure.
Hardware & Sensors
AHT20 & BMP280 Sensors
High-precision digital temperature and humidity tracking combined with barometric pressure sensing for localized weather estimations and environmental baselines.
HC-SR04 Ultrasonic
Distance measurement and zone monitoring for security applications.
PIR Motion Detection
Passive infrared sensing to track movement anomalies across campus security zones.
Raspberry Pi Pico W
The micro-controller brain handling sensor polling, I2C communication, and seamless Wi-Fi transmission directly to the cloud without intermediate gateways.
Architecture & Data Flow
The firmware is written in MicroPython, designed for lightweight execution. Telemetry is published using the MQTT protocol, routed to ThingSpeak where it is aggregated and visualized on a custom web dashboard.