#include <LiquidCrystal_I2C.h>

#define I2C_ADDR    39  //0x27
LiquidCrystal_I2C lcd(I2C_ADDR, 20, 4);

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

  lcd.setCursor(3, 0);
  lcd.print("Hello, world!");
  
  lcd.setCursor(0, 1);
  lcd.print("Wokwi  IoT");
}


void loop() {
}