#include <LiquidCrystal_I2C.h>

#define Trigpin 12
#define Echopin 14

LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  // put your setup code here, to run once:
  lcd.init();
  lcd.backlight();

  pinMode(Trigpin, OUTPUT);
  pinMode(Echopin, INPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  distance();
  
}

void distance() {

digitalWrite(Trigpin, LOW);
delayMicroseconds(2);

digitalWrite(Trigpin, HIGH);
delayMicroseconds(10);
digitalWrite(Trigpin, LOW);

int x = pulseIn(Echopin, HIGH);

int dist = x * 0.0343 / 2;

lcd.setCursor(0, 0);
lcd.print("DISTANCE:");
lcd.print(" ");
lcd.print(dist);

if(dist < 100 & dist > 9){
  lcd.setCursor(12, 0);
  lcd.print("    ");

  lcd.setCursor(13, 0);
  lcd.print("CM");

}else if(dist < 10){
  lcd.setCursor(11, 0);
  lcd.print("     ");

  lcd.setCursor(12, 0);
  lcd.print("CM");

}else{
  lcd.setCursor(13, 0);
  lcd.print("   ");

  lcd.setCursor(14, 0);
  lcd.print("CM");

}

}