[abzman] took the Pelco KBD300A, a DVR-intended camera controller panel with a joystick, reverse-engineered it, and then rebuilt it into a Kerbal Space Program controller. What’s more ...
Simple right? Now just multiply 555’s for how many axis you need and you have a simple analog joystick. Apple //s, and IBMs work like this, and use a 556 dual timer (one, two axis joystick ...