How to use raindrop sensor

MATERIALS REQUIRED

1.ARDUINO UNO
2.BREADBOARD
3.MALE TO FEMALE WIRES
4.MALE TO MALE WIRES
5.BUZZER
6.RAINDROP SENSOR

CIRCUIT

analogpin-A0

digitalpin-D7

GND-GND

VCC-5V

buzzer+ve-13

buzzer-ve-GND

CODE

const int analogPin=A0; //the AO of the module attach to A0

const int digitalPin=7; //D0 attach to pin7

const int buzzer=13; //

int Astate=0; //store the value of A0

boolean Dstate=0; //store the value of D0

void setup() 

{

  pinMode(buzzer,OUTPUT); //set the buzzer as OUTPUT 

  pinMode(digitalPin,INPUT); //set digitalPin as INPUT

  Serial.begin(9600); //initialize the serial monitor

}

void loop() 

{

  Astate=analogRead(analogPin); //read the value of A0

  Serial.print("A0: ");

  Serial.println(Astate); //print the value in the serial monitor

  Dstate=digitalRead(digitalPin); //read the value of D0

  Serial.print("D0: ");

  Serial.println(Dstate);

  if(Dstate==HIGH) 

  {

    digitalWrite(buzzer,LOW);

  }

  else //if the value of D0 is LOW

  {

    digitalWrite(buzzer,HIGH); //turn on the led

  }

}