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Thread: MIDI retrofit for dinosaur Casiotone

  1. #1
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    MIDI retrofit for dinosaur Casiotone

    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

  2. #2
    Senior Member
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    Massachusetts
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    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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