#define trig 5
#define echo 6
#define sOfS 340
long duration = -1;
float distance = -1;

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

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

  duration = pulseIn(echo, HIGH);
  distance = (float(duration) / 2) * sOfS / 1e4;

  Serial.print("Duration:\t");
  Serial.print(duration);
  Serial.print("\t");
  Serial.print("Distance:\t");
  Serial.print(distance);
  Serial.print("\n");
}