int trig=7;
int echo=6;
int timeInMicro;

int distanceInCm;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
   pinMode(7, OUTPUT);

   pinMode(6, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(trig, LOW);
  delayMicroseconds(2);
  digitalWrite(trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig, LOW);

  timeInMicro = pulseIn(echo, HIGH);

  distanceInCm=timeInMicro /29 /2;

  Serial.println(distanceInCm);
  delay(100);
}