The initial prototyping for R-Kade Zero was quick and easy as we had various joysticks and switches in our project boxes from previous arcade projects.

As well as those parts we also had a couple of PCB modules with joystick and buttons lying around so they were put into service as well.

So once we got our first RPiZ we were able to connect it up to the various PCB modules using jumper wires and write some code to test buttons and joysticks