Atari style joystick interface with Arduino

Michael writes in with an Atari style joystick interface made with an Arduino –

I just wanted to show you the Atari joystick interface that I made. A friend had challenged me to create an interface to an Atari style joystick. I thought immediately of the Arduino microcontroller board. I interfaced the joystick to the Inputs. And wrote a program that will serially output the state of each joystick position simultaneously. The LEDs that are hooked up are an output were a debugging tool to make sure the program was working correctly. I am working on a schematic in Eagle.(slowly as I’m trying to learn Eagle as well)

Atari Style Joystick Interface – Link.