Also - if you have old PC joysticks (with the 15 pin D connector) then those are pretty easy to wire up.
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Also - if you have old PC joysticks (with the 15 pin D connector) then those are pretty easy to wire up.