#define echo 12
#define trig 13

#define LED1 2
#define LED2 3
#define LED3 4
#define LED4 5
#define LED5 6
#define LED6 7
#define LED7 8
#define LED8 9
#define LED9 10
#define LED10 11

int duration=0;
int distance=0;

void setup()
 {
 Serial.begin(9600);
 pinMode(trig, OUTPUT);
 pinMode(echo, INPUT);

 pinMode(LED1, OUTPUT);
 pinMode(LED2, OUTPUT);
 pinMode(LED3, OUTPUT);
 pinMode(LED4, OUTPUT);
 pinMode(LED5, OUTPUT);
 pinMode(LED6, OUTPUT);
 pinMode(LED7, OUTPUT);
 pinMode(LED8, OUTPUT);
 pinMode(LED9, OUTPUT);
 pinMode(LED10, OUTPUT);


}

void loop() 
{
  digitalWrite(trig, HIGH);
  delay(1);//1 ms
  digitalWrite(trig, LOW);

  duration=pulseIn(echo,HIGH);
  distance=(duration*0.0343/2);
  Serial.print(distance);

  if (distance <=5 )
{
  digitalWrite(LED1, HIGH);
}
else
{
  digitalWrite(LED1, LOW);
}
 if (distance <=10 )
{
  digitalWrite(LED2, HIGH);
}
else
{
  digitalWrite(LED2, LOW);
}
 if (distance <=15 )
{
  digitalWrite(LED3, HIGH);
}
else
{
  digitalWrite(LED3, LOW);
}
 if (distance <=20 )
{
  digitalWrite(LED4, HIGH);
}
else
{
  digitalWrite(LED4, LOW);
}
 if (distance <=25 )
{
  digitalWrite(LED5, HIGH);
}
else
{
  digitalWrite(LED6, LOW);
}
 if (distance <=30 )
{
  digitalWrite(LED6, HIGH);
}
else
{
  digitalWrite(LED6, LOW);
}  
 if (distance <=35 )
{
  digitalWrite(LED7, HIGH);
}
else
{
  digitalWrite(LED8, LOW);
}
 if (distance <=40 )
{
  digitalWrite(LED8, HIGH);
}
else
{
  digitalWrite(LED8, LOW);
}
 if (distance <=45 )
{
  digitalWrite(LED9, HIGH);
}
else
{
  digitalWrite(LED9, LOW);
}
 if (distance <=50 )
{
  digitalWrite(LED10, HIGH);
}
else
{
  digitalWrite(LED10, LOW);
}
}