const int trigP=12;
const int echoP=14;
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(500);

}