Ultrasonic sensor Code

•  Code

 int trigpin = 7;

int echopin = 6;

int buzz = 13;

int led1 = 12;

int led2 = 11;

int led3 = 10;

int led4 = 9;

int led5 = 8;

int duration = 0;

int distance = 0;

void setup()

{

  for (int pin0 = 13;pin0<=8;pin0++)

  {

    pinMode(pin0,OUTPUT);

  }

  pinMode(trigpin ,OUTPUT);

  pinMode(echopin ,INPUT);

  Serial.begin(9600);

}

void loop()

{

  digitalWrite(trigpin,LOW);

  delayMicroseconds(2);

  digitalWrite(trigpin,HIGH);

  delayMicroseconds(10);

  digitalWrite(trigpin,LOW);

  duration = pulseIn(echopin,HIGH);

  distance = duration/58.2;

  Serial.println(distance);

  

  if(distance <= 30)

  {

    digitalWrite(13,HIGH);

  }

  else

  {

    digitalWrite(13,LOW);

  }

  

  

  if (distance <= 42)

  {

    digitalWrite(12,HIGH);

    Serial.println("led1 is on.");

  }

  else

  {

    digitalWrite(12,LOW);

  }

  if(distance <= 80)

  {

    digitalWrite(11,HIGH);

  }

  else

  {

    digitalWrite(11,LOW);

  }

  if(distance <= 100)

  {

    digitalWrite(10,HIGH);

  }

  else

  {

    digitalWrite(10,LOW);

  }

  if(distance <= 110)

  {

    digitalWrite(9,HIGH);

  }

  else

  {

    digitalWrite(9,LOW);

  }

  if(distance <= 120)

  {

    digitalWrite(8,HIGH);

  }

  else

  {

    digitalWrite(8,LOW);

  }

  

  

}