Design and Implement a Mesh Network Communication for Smart Home Automation

This research paper presents a novel approach to smart home automation utilizing the ESP32, the Blynk app, and a manual switch. The system enables the control of 16 channel relays both online and offline while providing real-time tracking of their status. The Internet of Things (IoT) is a prominent research area in communication engineering, whereas wireless mesh networks, a long-standing network topology, remain underutilized. Mesh networks are widely employed in machine-to-machine communication and IoT devices as they facilitate local device-to-device communication without the need for a router. Many existing smart home automation systems face the challenge of decentralized connections, requiring repeated device connections for each room. This issue is particularly prominent in large houses or companies, making mesh networks an ideal solution. To address this gap, this paper introduces the application of mesh network technology in conjunction with the current IoT network. The system is designed, simulated, and implemented using cost-effective double-sided copper-clad flexible PCB substrates to achieve centralized control of automated devices. Experimental tests conducted with the fabricated PCB demonstrate real-time monitoring of connected appliances, as well as the collection of temperature and humidity data.