Rain drop sensor

This water sensor works by having a series of exposed traces connected to ground and interlaced between the grounded traces are the sensor traces. The sensor board has a demension of 5.0 x 4.0cm. There is also an on-board potentiometer to adjust the sensitivity, you can get the amount of water induced contact between the grounded and sensor traces. With the comparator LM393, users can get both the analog signal and digital signal.

Connect this sensor to 5V power, adjust the sensitivity, if there is no water in the sensor, D0 output HGHT(1), and the signal indicator is off. If there is water in the sensor, D0 output LOW(0), and the signal indicator is on. Aslo using Arduino to get the analog output by connecting the A0, according to the value to caculate how much of the water.

Application:

• Rainfall detecting
• Liquid leakage
• Tank overflow detector

Features:

• Low power consumption
• Sensitivity adjustable
• On-board LED indicator to show the results
• Digital output and Analog output
• Working voltage: 3.3V-5V
• Dimension of the board: 3.2cm x 1.4cm