IoT Based Smart Home Automation and Security Monitoring System

Abstract

The rapid development of Internet of Things (IoT) technology has significantly transformed modern home environments by enabling intelligent monitoring and remote control of household appliances. This paper presents an IoT based smart home automation and security monitoring system designed using ESP32 microcontroller technology, relay modules, sensors, and wireless communication. The proposed system allows users to remotely control electrical appliances such as lights, fans, and other household devices using a smartphone application. The system also includes environmental monitoring features such as temperature sensing, gas leakage detection, and motion detection for enhanced safety and security. Sensor data and device status are continuously monitored and can be accessed through a mobile application interface. Whenever abnormal conditions such as gas leakage or unauthorized movement are detected, the system activates a buzzer alert mechanism to notify the user immediately. The developed system is low-cost, user-friendly, energy-efficient, and suitable for smart home applications. The proposed model improves convenience, safety, automation, and energy management in modern residential environments.