The first joysticks, of course, were simply made up of switches pressed by a plate connected to the stick.Then came analog joysticks which were built up with two potentiometers mechanically linked at a 90-degree angle; one pot for each axis. The original PC joysticks were easy to connect to microcontrollers without hacking. With the proliferation of USB ports, though, analog joysticks changed their interface and are no longer microcontroller-friendly. Darn ...
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