#define I2C_ADDR    
#define LCD_COLUMNS 
#define LCD_LINES   

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

void setup() {
  Serial.begin(115200);
  Serial.println("Hello, STM32!");

  lcd.init();
  lcd.backlight();

  lcd.setCursor(4, 0);
  lcd.print("Hello, STM32");
  lcd.setCursor(5, 2);
  lcd.print("Welcome to");
  lcd.setCursor(7, 3);
  lcd.print("Wokwi!");
}

void loop() {
}