Rain Drop Sensor Module

Arduino Rain Drop Sensor Module

Rainfall is an important factor for some advanced as well as some simple projects such as a automatic irrigation system, Rainfall intensity detection system, auto rain sensing wipers and various other projects. Rain drop sensor module has Nickel strips laid parallel to each other. Since water is a conductor it reduces the resistance and the voltage drop between two parallel Nickel strips. This principle is basically used to sense the presence of Water.

  1 -  Outputs a analog voltage relative to the amount of rainfall

  2 -  Digital output (HIGH or LOW)

  3 - Ground pin

  4 - 5V Power input

Rain drop sensor  to Arduino Uno Connections

          Analog Out ------------------------->Analog Pin A0 Of Arduino Uno

          Digital Out-------------------------->Digital Pin 2 Of Arduino Uno

          5V------------------------------------>5V Pin Of Arduino

          Ground pin-------------------------->GND Of Arduino

 Code Segment To Get The Readings

Once we have wired up everything correct, Let's move to the next important step reading the output from the sensor.

Reading The Analog Output

int analogVal;
void setup() {
  pinMode(A0,INPUT); //Declaring the pin A0 as input
  pinMode(2,INPUT); //Declaring pin D2 ad input
  Serial.begin(9600);
}

void loop() {
 analogVal = analogRead(A0); //reading the analog input from A0 and assigning the value to the variable analogVal
 Serial.print(analog_val);  //printing the above stored variable values in the serial monitor

}

Reading The Digital Output

int digitalVal
void setup() {
  pinMode(A0,INPUT); //Declaring the pin A0 as input
  pinMode(2,INPUT); //Declaring pin D2 ad input
  Serial.begin(9600);
}

void loop() {
 digitalVal = digitalRead(A0); //reading the digital input from A0 and assigning the value to the variable analogVal
 Serial.print(digital_Val);  //printing the above stored variable values in the serial monitor
}

Just as simple as that. Feel free to ask and clarify any doubts in the comment section below!!!!!

CHEERS!!