#include <LiquidCrystal.h>
// Initialize the library with the pins
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup() {
 // Set up the LCD's number of columns
 lcd.begin(16, 2);

 // print a message to the LCD.
 lcd.print("Hello world");
} 

void loop() {
// Do nothing in the loop.
}