codings for ultrasonic sensor

                     codings for ultrasonic sensor

#define trig 5

#define echo 6

void setup() {

  Serial.begin(9600);

  pinMode(trig,OUTPUT);

  pinMode(echo,INPUT);

  pinMode(13,OUTPUT);

}

void loop() {

  long duration , distance;

  

  digitalWrite(trig,LOW);

  delay(2);

  digitalWrite(trig,HIGH);

  delay(2);

  digitalWrite(trig,LOW);

  

  duration= pulseIn(echo,HIGH);

  distance=(duration/2)/29.1;

  if(distance <= 10)

  {

    digitalWrite(13,HIGH);

  }

  else

  {

    digitalWrite(13,LOW);

  }

  

 delay(1000);

  

}

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This is the codings for ultrasonic sensor... 

For reference watch my youtube channel..

youtube ultrasonic sensor video part1

youtube ultrasonic sensor video part2