Rain Drop Sensor

Product details A rain drop sensor is designed to sense the presence and intensity of rainfall by measuring the conductivity between traces on a specially designed sensing plate. When water droplets fall on the plate, the resistance between the conductive lines decreases, causing a change in the output signal.The module typically consists of two parts: Sensing Plate – A PCB with exposed copper traces that detect moisture. Control Board – Contains a comparator and signal conditioning circuitry to provide both digital and analog outputs. The digital output indicates the presence or absence of rain, while the analog output gives a proportional reading of moisture level. Rain drop sensors are widely used in weather stations, smart agriculture, automatic wiper systems, and IoT-based environmental monitoring due to their low cost, ease of interfacing, and reliable performance.