Building an arduino controlled patch bay

Discussion in 'The Projects Forum' started by mazzarotti, Oct 31, 2010.

  1. mazzarotti

    Thread Starter New Member

    Oct 31, 2010
    3
    0
    Hey all,

    I have a drum machine that I am short circuiting for artistic purposes. There is a 32 pin IC on the PCB, and I am turning the pins into a patch bay (so i can connect any of the 32 pins with any of the remaining 31 pins). I can make a physical patch bay, but I want to make a virtual patch bay using PureData with Arduino, and this is where I run into a problem.

    I don't know how I would build this in a circuit.

    I have a vague idea floating around, something like 64 (32x2, or would it be 32^2?) open circuits and the arduino closes a circuit which would be the equivalent of physically patching.

    Any suggestions or pointers would be greatly appreciated.
     
  2. hgmjr

    Moderator

    Jan 28, 2005
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    Do you have a schematic of the existing circuit?

    hgmjr
     
  3. mazzarotti

    Thread Starter New Member

    Oct 31, 2010
    3
    0
    No, I don't. I just plan on soldering wires to the pins of the IC then to my circuit.
     
  4. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    What is the part number of the IC you are planning to connect to?

    hgmjr
     
  5. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    6,357
    718
    If there isn't much current required (<25mA per pin on "shorting"), you could use 8 4066 bilateral Switches that are controlled by the uC.
     
  6. mazzarotti

    Thread Starter New Member

    Oct 31, 2010
    3
    0
    Yamaha X1432A0 9139 D

    Hrm.. ill look into it, it might work, thanks. I'm thinking i need a 32x32 matrix to obtain all the combinations.
     
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