#include <LiquidCrystal_I2C.h>

const int col = 16;
const int row = 2;

LiquidCrystal_I2C lcd(0x27, col, row);

// 👇 pixel untuk emoticon ❤
byte love[8] = {
  0b00000,
  0b01010,
  0b11111,
  0b11111,
  0b11111,
  0b01110,
  0b00100,
  0b00000
};

// 👇 set default text cursor
int position = 0;
int direction = 1;

// 👇 set text to lcd
const char* msg = " Anya "; 

// 👇 ukur panjang data text
int msgLen = strlen(msg);

void setup() {
  lcd.init();
  lcd.backlight();
  
  // 👇 initialisasi emoticon sebelum di cetak ke lcd   
  lcd.createChar(0, love);
}

void loop() {
  lcd.clear();

  //👇 set posisi text dinamis
  lcd.setCursor(position, direction);
  position+=1;
  
  // 👇 validasi naik turun text
  direction ? direction = 0 : direction = 1;
  
  // 👇 validasi offset text dari lcd  
  if(position < 0 || position >= col) {
    position = 0;
  }

  // output: ❤ Anya ❤   
  lcd.write(0);
  lcd.print(msg);
  lcd.write(0);
  
  delay(500);
}