Pr0f wrote:that mimics the action of a keyboard matrix - but we have that already - whoever wants to integrate the Q68 into an original QL case needs to convert the matrix into a serialized code for the Q68 - PS/2 or otherwise...
Yes, there are two different threads going one here.
Butcher a PC keyboard, take out the keyboard controller chip - make up a bit of veroboard with the diodes and 9 way and 11 way connectors on - wire the rows and columns to the appropriate connections on the keyboard controller (these are often on a separate smaller board), wire a new short 4 wires PS/2 connection to ps/2 plug - wire mouse wires to new PS/2 plug for mounting on QL case.
That assumes the key mapping is the same, which it certainly isn't. But anyway, emulating a PS/2 or even USB keyboard is even easier than the other way round, a simple Arduino can do that without any extra hardware (USB needs a few tricks, but I've done it before).
