Remote based Home Automation with MQTT: ESP32 Nodes and Node-RED on Raspberry Pi

Nowadays, Home automation has acquired a significant attention due to its potential to enhance convenience and efficiency in managing household systems. This paper presents a novel method to home automation utilizing the MQTT protocol, with a system is implemented using three ESP32 nodes and a Node- Red server is running on a Raspberry Pi, enabling users to control from Raspberry Pi as well as client terminals. The proposed system enables the users to control and monitor home appliances remotely from anywhere. By using the lightweight MQTT protocol, the system provides the real-time communication between the nodes and the server, ensure responsive control and data monitoring. The implementation of ESP32 nodes provides the flexibility and scalability, while Node-RED provides the user friendly interface for system management. Experimental results show the system effectiveness for maintaining reliable connectivity between nodes and server, also providing actionable insights into appliance usage. This work highlights the potential of MQTT-based home automation systems to provide enhanced control and monitoring capabilities in modern smart homes.