ULTRASONIC SENSOR INTERFACE WITH ARDUINO

 

In this tutorial,we are going to interface ultrasonic sensor with Arduino.

Ultrasonic Library for proteus

CODE

#include<LiquidCrystal.h>

LiquidCrystal lcd(8, 9, 10, 11, 12, 13);

#define trig 4

#define echo 5

int duration,distance=0;

void setup() {

  lcd.begin(16, 2);

  pinMode(trig, OUTPUT);

  pinMode(echo, INPUT);

}

void loop() {

  digitalWrite(trig, LOW);

  delayMicroseconds(2);

  digitalWrite(trig, HIGH);

  delayMicroseconds(10);

  digitalWrite(trig, LOW);

  duration = pulseIn(echo, HIGH);

  distance = (duration / 2) / 29.1;

  lcd.setCursor(0, 0);

  lcd.print("D:");

  lcd.setCursor(3, 0);

  lcd.print(distance);

  if (distance < 10)

  {

    lcd.clear();

    lcd.setCursor(0, 1);

    lcd.print("OBSTACLE");

  }

  delay(1000);

}