int RED=2;
int GREEN=4;
int TRIG=14;
int ECHO=27;
int BUZ=6;

void setup()
{
  Serial.begin(9600);
  pinMode(RED, OUTPUT);
   pinMode(GREEN, OUTPUT);
   pinMode(TRIG, OUTPUT);
   pinMode(BUZ, OUTPUT);
   pinMode(ECHO, INPUT);
}
void loop()
{
  long Duration,CM,inch;
  digitalWrite(TRIG, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG, LOW);
  Duration=pulseIn(ECHO, HIGH);
  CM=Duration*(0.034/2);
  inch=Duration*(0.0133/2);
  if(inch>35){
    digitalWrite(GREEN, HIGH);
    digitalWrite(RED, LOW);
    noTone(BUZ);
    Serial.println("object is not detected");
  }
  else
  {
    digitalWrite(RED, HIGH);
    digitalWrite(GREEN, LOW);
    tone(BUZ,1000,10);
    Serial.println("object is detected");
    
  }
  Serial.print("INCH:  ");
  Serial.println(inch);
  delay(100);
  
}