#include <Wire.h>
#include <hd44780.h>
#include <hd44780ioClass/hd44780_I2Cexp.h> 

hd44780_I2Cexp lcd; 

void setup()
{
  // initialize LCD with number of columns and rows:
  lcd.begin(16, 2);
  lcd.backlight();

  // Print a message to the LCD
  lcd.print("Hello, World!");
}

void loop()
{
  lcd.setCursor(0, 1);
  lcd.print(millis() / 1000);
  delay(1000);
}