IoT-Based Smart Home Automation and Automatic Cloth Protection System

The rapid proliferation of Internet of Things (IoT) technology has enabled the development of cost-effective, intelligent home automation systems. This paper presents the design and implementation of an IoT-based Smart Home Automation and Automatic Cloth Protection System using the ESP32 microcontroller and Blynk IoT platform. The proposed system integrates an MH-RD rain sensor with an SG90 servo motor to automatically retract outdoor clothes upon detection of rainfall — addressing a critical problem in monsoon-prone regions of India such as Tamil Nadu. The system simultaneously enables remote monitoring and control of household appliances (lights and fans) via the Blynk mobile application over Wi-Fi, with real-time push notifications for rain events and system status updates. Experimental evaluation over 50 test cycles demonstrates 95% overall system reliability, servo response time of 0.8 seconds, approximately 28% reduction in energy consumption compared to manual operation, and 99.2% Wi-Fi uptime. The complete prototype was implemented at a cost of approximately INR 3,500, making it affordable for Indian middle-class households. The system also supports OTA (Over-the-Air) firmware updates for field maintenance without physical device access.

Internet of Things (IoT); ESP32; NodeMCU; Smart Home Automation; Rain Sensor (MH-RD); Blynk Platform; Servo Motor (SG90); MQTT; Energy Efficiency; Cloth Protection; Automatic Laundry Protection.

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