Rain Drop Sensor
Rain/Water Sensor Module
Operating Voltage: 3.3V to 5V.
Digital and Analog outputs.
Digital output can drive up to 100mA (Buzzer, relay, etc).
Power LED and DO status LED.
Digital output will be low when water is detected.
The Analog output acts like an variable resistor and will change in value between 100kΩ (wet) and 2MΩ (dry).