This instructable shows you how to use NES controller in Atari 2600 or ZX Spectrum (with Kempston Interface)  with the aid of an Arduino. Step 1: Background talk I have recently acquired a couple of Atari 2600s and a bunch of joysticks. Both consoles were working but all of the 5 joysticks were damaged beyond repair. Indeed, it is very easy to find It is easy to find an old Atari 2600 console working but it ...