#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
const int echoPin = 2; // attach pin D2 Arduino to Echo pin of Sensor module
const int trigPin = 3; // attach pin D3 Arduino to Trig pin of Sensor module
void setup()
{
pinMode(echoPin, INPUT);
pinMode(trigPin, OUTPUT);
lcd.init(); // initialize the lcd
lcd.backlight(); // Turn on the Backlight
Serial.begin(9600);
// The text to be printed in serial monitor
Serial.println("Distance measurement using Arduino Uno");
}
void loop()
{
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
long duration = pulseIn(echoPin, HIGH);
float distance = float(duration) * 0.0344 / 2.0;
Serial.print("Distance: ");
Serial.print(distance);
Serial.println(" cm");
lcd.clear(); // Clear the display buffer
lcd.setCursor(0, 0); // Set cursor for "Distance:" (Column, Row)
lcd.print("Distance:"); // print "Distance:" at (0, 0)
lcd.setCursor(0, 1); // Set cursor for output value (0, 1)
lcd.print(distance,0); // print Output in cm at (0, 1)
lcd.setCursor(4, 1); // move cursor to (4, 1)
lcd.print("cm"); // print "cm" at (4, 1)
delay(500);
}