#include <Wire.h>
#include<LiquidCrystal_I2C.h>

#define I2C_ADDR 0x27
#define TOTAL_ROWS 2
#define TOTAL_COLUMNS 16

LiquidCrystal_I2C lcd(I2C_ADDR, TOTAL_COLUMNS, TOTAL_ROWS);

void setup(){
  lcd.init();
  lcd.backlight();
}

void loop() {
 lcd.clear();
 lcd.setCursor(0,0);
 lcd.print("HELLO KLU");
 delay(2000);

 lcd.clear();
 lcd.setCursor(0,0);
 lcd.print("HELLO KLU");
 delay(2000);

 lcd.clear();
 lcd.setCursor(0,0);
 lcd.print("Lets Count 0-20!");
 delay(2000);

 lcd.clear();
 for (int i=0; i<=20; i++){
  lcd.setCursor(0,1);
  lcd.print(i);
  delay(1000);
  lcd.clear();
 }
}