const int trigP = 10;
const int echoP = 11;
long duration;
int distance;

void setup() {
  // put your setup code here, to run once:
  pinMode(trigP, OUTPUT);
  pinMode(echoP, INPUT);
  Serial.begin(9600);

}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(trigP, LOW);
  delayMicroseconds(2);
  digitalWrite(trigP, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigP, LOW);
  duration = pulseIn(echoP,HIGH);
  distance = duration*0.034/2;
  Serial.print("Distance = ");
  Serial.println(distance);
  delay(1000);

}