I have couple of pcbs (mainboard, power board) to give away at self cost.
When ordering these printed circuit boards e.g. in China or at Aisler.net
it is more economical ordering sets of 10 or more, as shipping exceeds the cost per board.
So I have about 10 sets laying around – send me a mail at feedback (at) virtual-pinball-cabinet.com if you are interested: 15,- Euro per set (2 pcbs) + shipping (aprox. 3,70 Euro in Europe).
Pinscape is an open-source, all-in-one I/O controller for virtual pinball machines. The Pinscape Controller software running on the standalone KL25Z offers most of the input functions by itself, with no need for the expansion board. The big thing the expansion board adds is feedback device outputs, and lots of them.
If you want to know more: Pinscape Controller Software – Open-source plunger, nudge, feedback device, and button input controller