I 've come up with a design to wire a Raspberry PICO 2040 up onto a CPC 464 keyboard PCB so that it can be used as a USB keyboard for your PC. Caveats: the CPC obviously can’t be used at the same time, so this is only a keyboard for your PC. It has been tested only with an old style (19 pin) 464 keyboard but it should work also with the double ribbons one. And only the English layout has been tested. At the moment this is just a wiring scheme but we are working on a proper carrier board that you can connect easily. (The gerbers and KiCAD files are there but it’s untested)
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