#include <LiquidCrystal_I2C.h>
#define lcd_address 0x27
#define lcd_col 16
#define lcd_row 2
LiquidCrystal_I2C lcd (lcd_address, lcd_col,lcd_row);

void setup() {
  lcd.begin(16,2);
  lcd.init();
  lcd.backlight();
  lcd.setCursor(2,0);
  lcd.print("hello world");
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}