This is a basic 20 character by 4 line display. Interface code is freely available. You will need ~11 general I/O pins to interface to this LCD screen. Includes LED backlight.
If you want to add some visual output to your Arduino projects, you’ll need a display. If you need moderate data on display, the LCD2004 Parallel LCD Display is a quite good solution for the Arduino projects.
It works of 5V and has a Green Backlight which can be switched on and off as desired. The contrast of the screen can also be controlled by varying the voltage at the contrast control pin.