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Thread: DIY MIDI CC Controller w/100mm sliders for under $100

  1. #11
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    Here's all we'll be working with

    teensy-front-rotated-cropped-jpg

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    Here's my wiring diagram.

    Be sure not to use the VIN (3.6 to 6.0 volts) (not shown here). This will cause the faders to max out at half the distance, because of doubling the voltage.

    I'll post about how to program the board next. Probably tomorrow.


    teensy-wiring-jpg

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    Oh, the things I could do with a 3D printer!!!


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    This is the detail I get with the faders. I was waiting for a replacement fader (the 3rd one), so I only have two CC's showing here.

    screenshot-automation-jpg
    Last edited by jsbenson; 11-23-2018 at 21:49.

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    Quote Originally Posted by jsbenson View Post
    Here's my wiring diagram.

    Be sure not to use the VIN (3.6 to 6.0 volts) (not shown here). This will cause the faders to max out at half the distance, because of doubling the voltage.
    Who's doubling what voltage?
    Not seeing it in the schematic, there.

    How does a fader "max out at half the distance"? There will always be voltage present, albeit small.
    I'm not keeping up so well.

  6. #16
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    Quote Originally Posted by Ponder5 View Post
    Who's doubling what voltage?
    Not seeing it in the schematic, there.

    How does a fader "max out at half the distance"? There will always be voltage present, albeit small.
    I'm not keeping up so well.
    He's just saying be sure to use the pins marked in diagram in post #12, because there is another, higher voltage, pin someone could easily use by mistake.
    It's shown in post #10.

    Enjoying this @jsbenson ^^.
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  8. #17
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    Quote Originally Posted by Steenamaroo View Post
    He's just saying be sure to use the pins marked in diagram in post #12, because there is another, higher voltage, pin someone could easily use by mistake.
    It's shown in post #10.

    Enjoying this @jsbenson ^^.
    Exactly. If you look at the original diagram, the higher voltage pinout is the top hole. Someone might see that and think, if 3 volts is good, more power must be better. Might be better for some applications, but not this one.

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    If anyone has any questions, start asking.

    I'll be posting the info about how to connect the chip to your PC/Mac and program it.

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    Are you familiar with how to use the 5-pin MIDI connector for MIDI Out? I've been browsing around the internet and maybe there are specific pins to use. Would I have to write code to change the parameters of the serial ports to match RS485?

  11. #20
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    I'm trying to find non-motorized, touch-sensitive slider pots, but I'm not having much luck.
    Last edited by jsbenson; 11-29-2018 at 12:19.

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