Raindrop Sensor Module (MH-RD) + LM393 Board

Raindrop Sensor Module (MH-RD) includes a rain detection plate and LM393 comparator control board for detecting rain, water drops, or surface moisture.

• Includes: Rain detection plate + LM393 comparator module
• Outputs: Digital (D0) + Analog (A0)
• Adjustable Sensitivity: On-board potentiometer
• Power: 3.3V–5V DC
• Use Cases: Weather stations, automatic wipers, smart irrigation, leakage/moisture detection projects
• Indicator LEDs: Power + digital output status

How it works: Water droplets create conductivity across the sensing plate. The control board provides an analog signal proportional to moisture and a threshold-based digital output.