const int trig=2;
const int echo=4;

long duration;
long distance;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(trig,OUTPUT);
  pinMode(echo,INPUT);
}

void loop() {
  digitalWrite(trig,LOW);
  delayMicroseconds(2);
  digitalWrite(trig,HIGH);
  delayMicroseconds(10);
  digitalWrite(trig,LOW);

  duration=pulseIn(echo,HIGH);
  distance=(duration*0.034/2)+1;
  Serial.println("Distance"+String(distance));
  delay(1000);
}