#include<SoftwareSerial.h>
const int trigPin = 9;
const int echoPin = 10;
long duration;
int distance;
SoftwareSerial bluetooth(2, 3); 
void setup()
{
 pinMode(trigPin,OUTPUT);
  pinMode(echoPin, INPUT);
  bluetooth.begin(9600);
  }
  void loop()
   {
     digitalWrite(trigPin, LOW);
       delayMicroseconds(2);
         digitalWrite(trigPin, HIGH);
          delayMicroseconds(10);
            digitalWrite(trigPin, LOW);
              duration =pulseIn(echoPin, HIGH)
                distance = duration * 0.034 / 2; bluetooth.print("Distance: "); bluetooth.print(distance);
                  bluetooth.println(" cm");

                    delay(1000);
                    }