Automatic Rain Sensing Window Using Arduino

Automation in buildings and smart homes is increasing rapidly to improve comfort, safety, and energy efficiency. One common issue faced in homes and offices is leaving windows open during unexpected rainfall, which may lead to water entering rooms and damaging furniture, electronics, and documents. This paper presents the design and development of an Automatic Rain Sensing Window system that detects rain and automatically closes the window using a motorized mechanism. The system uses a rain sensor module, Arduino microcontroller, motor driver, and DC motor. When rainwater is detected by the sensor, a signal is sent to the controller which activates the motor to close the window automatically. The system is simple, cost-effective, and suitable for smart home applications. Experimental testing shows that the system responds quickly to rain detection and provides reliable protection against water entry.