#include <LiquidCrystal_I2C.h>

uint8_t heart[8] = {
  0b00000,
  0b01010,
  0b11111,
  0b11111,
  0b11111,
  0b01110,
  0b00100,
  0b00000,
};

LiquidCrystal_I2C lcd(0x27,  16, 2);

void setup() {
  lcd.init();
  lcd.backlight();
  pinMode(19, INPUT_PULLUP);
  lcd.createChar(3, heart);
}

void loop() {
  if(digitalRead(19) == LOW){
    naozaj_moc();
    delay(1000);
  }
  else{
    lubim_ta();
    delay(1000);
  }
}

void lubim_ta(){
  lcd.clear();
  lcd.print("Lubim ta...");
  lcd.print("\x03");
  lcd.setCursor(0,1);
  lcd.print("Ostan aka si...");
}


void naozaj_moc(){
  lcd.clear();
  lcd.print("Si tak skvela...");
  lcd.setCursor(0,1);
  lcd.print("Z celeho ");
  lcd.print("\x03");
}