This project is a comprehensive home automation system developed as part of my diploma thesis, "A home automation system based on Raspberry Pi". It integrates hardware sensors, a backend server, a modern web client to provide real-time monitoring and control of a smart home environment.
A mobile app was also created that mirrors the Web application interface and also adds the ability for geolocation home automation actions and exist on separate repo. View the project: https://github.com/panastasiadis/raspi-home-automation-mobile-app
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arduino/
Contains firmware for various microcontroller-based sensors and actuators:pir_camera/: Motion detection using a PIR sensor, reporting events via MQTT.light_intensity/: Measures ambient light with a BH1750 sensor and publishes data over MQTT.dht11_relay/: Monitors temperature and humidity (DHT11), and controls relays for devices like bulbs and heaters, with MQTT-based remote control.
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server/
Node.js backend that serves multiple roles:- Hosts an Express API for data access and user authentication.
- Integrates an MQTT broker (Aedes) for real-time communication with IoT devices.
- Manages device and sensor data storage using MongoDB.
- Schedules actions and cleans up old sensor data.
- Serves the web client as a static app.
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client/
A React-based web application for interacting with the smart home system:- Provides dashboards and controls for monitoring sensor data and managing devices.
- Uses Material-UI for a modern interface.
- Communicates with the backend via REST APIs and MQTT for real-time updates.
- IoT & Embedded: Arduino, ESP8266, MQTT, DHT11, BH1750, PIR sensors.
- Backend: Node.js, Express, Aedes MQTT broker, MongoDB, JWT authentication.
- Frontend: React, Material-UI, MQTT.js, Axios.
- Real-time sensor data collection and device control via MQTT.
- Secure user authentication and role management.
- Actions scheduling.
- Responsive web dashboard for monitoring and control.
- Modular firmware for easy extension with new sensors or actuators.