LCD Keypad Shield

http://dx.com/p/lcd-keypad-shield-for-arduino-duemilanove-lcd-1602-118059

http://www.nuelectronics.com/download/projects/LCDshield_v1_1.pdf

http://arduino.cc/en/Tutorial/LiquidCrystal

#include <LiquidCrystal.h>

// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

void setup() {
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);
  // Print a message to the LCD.
  lcd.print("hello, world!");
}

void loop() {
  // set the cursor to column 0, line 1
  // (note: line 1 is the second row, since counting begins with 0):
  lcd.setCursor(0, 1);
  // print the number of seconds since reset:
  lcd.print(millis()/1000);
}