Basic Arduino Uno Project With Ultrasonic|Topped With Fun|Ultrasonic Project With Arduino Uno

Circuit Diagram:

Code: 

#include <NewPing.h>

const int trig = 11;

const int echo = 12;

const int LED1 = 2;

const int LED2 = 3;

const int LED3 = 4;

const int LED4 = 5;

const int LED5 = 6;

const int LED6 = 7;

const int LED7 = 8;

int duration = 0;

int distance = 0;

void setup()

{

  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);

 

  Serial.begin(9600);

}

void loop()

{

  digitalWrite(trig , HIGH);

  delayMicroseconds(1000);

  digitalWrite(trig , LOW);

  duration = pulseIn(echo , HIGH);

  distance = (duration/2) / 28.5 ;

  Serial.println(distance);

 

  if ( distance <= 6 )  //Adjust The Distance Here

  {

    digitalWrite(LED1, HIGH);

  }

  else

  {

    digitalWrite(LED1, LOW);

  }

  if ( distance <= 8 )  //Adjust The Distance Here

  {

    digitalWrite(LED2, HIGH);

  }

  else

  {

    digitalWrite(LED2, LOW);

  }

  if ( distance <= 10 )  //Adjust The Distance Here

  {

    digitalWrite(LED3, HIGH);

  }

  else

  {

    digitalWrite(LED3, LOW);

  }

  if ( distance <= 12 )  //Adjust The Distance Here

  {

    digitalWrite(LED4, HIGH);

  }

  else

  {

    digitalWrite(LED4, LOW);

  }

  if ( distance <= 14 )  //Adjust The Distance Here

  {

    digitalWrite(LED5, HIGH);

  }

  else

  {

    digitalWrite(LED5, LOW);

  }

  if ( distance <= 16 )  //Adjust The Distance Here

  {

    digitalWrite(LED6, HIGH);

  }

  else

  {

    digitalWrite(LED6, LOW);

  }

  if ( distance <= 18 )  //Adjust The Distance Here

  {

    digitalWrite(LED7, HIGH);

  }

  else

  {

    digitalWrite(LED7, LOW);

  }

}