MIDI retrofit for dinosaur Casiotone

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blakeAlbion

Well-known member
Hi all,
I was looking for a way to put an antique Casiotone MT-52 under midi control.
The keyboard matrix is 6x9 for a 49 key instrument.
If I were to add a bipolar transistor to each switch point (and therefore not need diodes), I could control the keyboard with GPIO either with many pins (like an Arduino Mega) or something more clever.
I have also read of a gadget called a crosspoint switch, which could simplify my life if it would work.
Is the Teensy+crosspoint switch idea feasible?

Thanks,
Ben
 
Uh, I guess my question is my answer. I'll solder my own grid. Then I will search the forum for demultiplexer solutions.
 
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