#define trig 10
#define echo 9

long duration;
double distance;



void setup() {
// triger is used to take input for sensor and output for aurdrino as it triggers the sensor to work
pinMode(trig, OUTPUT);
pinMode(echo, INPUT);
Serial.begin(9600);

}

void loop() {
  digitalWrite(trig, LOW); //we will do this to eliminate noise in sensor
  delayMicroseconds(2);

  digitalWrite(trig, HIGH); //Our sensor will be active
  delayMicroseconds(1000); // for 10 microseconds
  digitalWrite(trig, LOW); // now sensor will turn off

  duration = pulseIn(echo, HIGH); //This will store the time period for which pulse is high in microseconds

  distance = duration*0.034/2;

  Serial.print("Distance: ");
  Serial.println(distance);

}