#include <LiquidCrystal.h>   // include the library code:

const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {
  lcd.begin(16, 2);     // set up the LCD size
  lcd.print("hello, world!");  // Print a message to the LCD.
}

void loop() {
  // set the cursor to column 0, line 1
  lcd.setCursor(0, 1);
}