Rain Drop Detection Sensor Module – Weather Monitoring Tool for Arduino by ADIY

DESCRIPTION 

A rain sensor module is an easy tool for rain detection. It can be used as a switch when a raindrop falls through the raining board or for measuring rainfall intensity. The module features, a rain board and a control board that is separate for more convenience, power indicator LED and an adjustable sensitivity through a potentiometer. The analog output is used in the detection of drops in the amount of rainfall. Connected to a 5V power supply, the LED will turn on when induction board has no raindrop, and DO output is high. When dropping a little amount water, DO output is low, the switch indicator will turn on. Brush off the water droplets, and when restored to the initial state, outputs high level.

Pin Configuration

1. VCC: 5V DC

2. GND: ground

3. DO: high/low output

4. AO: analog output

DEVELOPMENT SOURCES 

Arduino code

Datasheet

FEATURES

• Adopts high quality of the RF-04 double-sided material.
• Area: 5cm x 4cm nickel plate on side
• Anti-oxidation, anti-conductivity, with long use time
• Comparator output signal clean waveform is good, driving ability, over 15mA
• Potentiometer adjust the sensitivity
• Working voltage 5V
• Output format: Digital switching output (0 and 1) and analog voltage output AO
• With bolt holes for easy installation
• Small board PCB size: 3.2cm x 1.4cm
• Uses a wide voltage LM393 comparator

APPLICATIONS

• On windscreen of car to automatically start the wipers
• On roof of houses and offices to take necessary action against rain
• In Weather Station

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Rain Drop Detection Sensor Module