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  1. Thread: Midi PCB

    by jjrh
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    4,025

    Just thought I would say I successfully got the...

    Just thought I would say I successfully got the boards made from seeedstudio.

    I had one mistake, the diode silkscreen (maybe also in the schematic? - I should check...) is backwards. I discovered...
  2. Thread: Midi PCB

    by jjrh
    Replies
    10
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    4,025

    Okay updated the schematic to be for the 3.3v. (I...

    Okay updated the schematic to be for the 3.3v. (I assumed those resisters are in series)

    3814

    3815

    3816
  3. Thread: Midi PCB

    by jjrh
    Replies
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    4,025

    are the two 47ohm resisters in parallel or...

    are the two 47ohm resisters in parallel or series?

    Is the midi in 270 ohm resister the one on pin4 of the PC900?
  4. Thread: Midi PCB

    by jjrh
    Replies
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    4,025

    Going to be a teensy 3.1 (it's so I can do work...

    Going to be a teensy 3.1 (it's so I can do work with the audio shield)

    I guess I should add room for the two resistors on the midi out.

    Room for a dip switch might be cute.
  5. Thread: Midi PCB

    by jjrh
    Replies
    10
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    4,025

    Okay I made the suggested changes (I think)...

    Okay I made the suggested changes (I think) annular rings should be bigger. I removed the 'extra pins' connectors which just added complexity. I sent the midi in shield to NC.

    I also fixed a...
  6. Thread: Midi PCB

    by jjrh
    Replies
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    4,025

    I thought the shield was supposed to be connected...

    I thought the shield was supposed to be connected to ground?



    Thanks, I'll look into it.



    Good call didn't think of that!
  7. Thread: Midi PCB

    by jjrh
    Replies
    10
    Views
    4,025

    Midi PCB

    Hello,

    I'm making a stab at building my first PCB using GEDA. It's a copy of the schematic PJRC posted https://www.pjrc.com/teensy/td_libs_MIDI_sch.gif
    so I can start mucking around with the...
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