int distance = 0;
int time = 0;
int echo_pin = 12;
int trig_pin = 13;
void setup() {
  // put your setup code here, to run once:
  pinMode(echo_pin, INPUT);
  pinMode(trig_pin, OUTPUT);
  Serial.begin(9600);
  Serial.println("Ultrasonic Distance...");
  
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(trig_pin, HIGH);
  digitalWrite(trig_pin, LOW);
  time = pulseIn(echo_pin, HIGH);
  distance = time*0.0172;

  Serial.print("Time: ");
  Serial.print(time);
  Serial.println(" Micro-seconds");

  delay(1500);

  Serial.print("Distance: ");
  Serial.print(distance);
  Serial.println(" CM");
}