Ultimate Object Sensing

Sense the distance of any object in front of it.

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Things used in this project

Hardware components

Arduino Nano R3

Ultrasonic Sensor - HC-SR04 (Generic)

Breadboard (generic)

Adafruit Standard LCD - 16x2 White on Blue

Jumper wires (generic)

Arduino UNO

Software apps and online services

Arduino IDE

Story

YouTube Video for making of Distance Sensing - Subscribe

Properties

It senses the distance of objects in front of it.

It has a range of 90 cm.

It uses an ultrasonic sensor for sensing distance via ultrasonic waves.

Code

Arduino distance sensor code

#include<LiquidCrystal.h>
LiquidCrystal lcd(12,11,5,44,3,2);
const int trigPin = 10;
const int echoPin = 9;
long duration;
int distance;
void setup()
{
  pinMode(trigPin,OUTPUT);
  pinMode(echoPin,INPUT);
  lcd.begin(16,2);
}
void loop()
{
  digitalWrite(trigPin,LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin,HIGH);
  delayMicroseconds(2);
  digitalWrite(trigPin,LOW);
  Duration=pulseIn(echoPin,HIGH);
  Distance=Duration*0.034/2;
  lcd.print("Distance=");
  lcd.print(Distance);
  delay(10);
  lcd.clear();
}