MEASURING DISTANCE USING ULTRASONIC SENSOR
In this tutorial we will teach you how to measure distance with Arduino UNO / Nano
COMPONENTS USED :
|
SR NO |
COMPONENT NAME | QUANTITY |
| 1 | Arduino Board(Uno or Nano) |
1 |
|
2 |
BreadBoard | 1 |
| 3 | Ultra Sonic Sensor |
4 |
|
4 |
Jumper Cable (male to male) | 1 set |
| 5 | LCD |
1 |
Schematic Diagram :
Source Code:
#include <LiquidCrystal.h> //Load Liquid Crystal Library
LiquidCrystal LCD(11,10,9,2,3,4,5); //Create Liquid Crystal Object called LCD
#define trigPin 13 //Sensor Echo pin connected to Arduino pin 13
#define echoPin 12 //Sensor Trip pin connected to Arduino pin 12
//Simple program just for testing the HC-SR04
//Ultrasonic Sensor with LCD dispaly
void setup()
{
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
LCD.begin(16,2); //Tell Arduino to start your 16 column 2 row LCD
LCD.setCursor(0,0); //Set LCD cursor to upper left corner, column 0, row 0
LCD.print(“Target Distance:”); //Print Message on First Row
}
void loop() {
long duration, distance;
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
// duration1 = pulseIn(echoPin, HIGH);
distance = (duration/2) / 29.1;
// distance1=((duration/2) / 29.1);
LCD.setCursor(0,1); //Set cursor to first column of second row
LCD.print(“”); //Print blanks to clear the row
LCD.setCursor(0,1); //Set Cursor again to first column of second row
LCD.print(distance); //Print measured distance
LCD.print(” cm”); //Print your units.
delay(250); //pause to let things settle
}
Video:
