#include <LiquidCrystal_I2C.h>

#define I2C_ADDR    0x27
#define LCD_COLUMNS 16
#define LCD_LINES   2

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

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

 
}


void loop() {
   // Print something
  lcd.setCursor(2, 0);
  lcd.print("hi ");
  lcd.setCursor(2, 1);
  lcd.print("xiao");
  delay(5000);
  lcd.clear();
  delay(1000);

}