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  1. #1
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    Default Buffer/line driver - null pixel without pixel

    The most common way to combat effects of cable capacitance (and other issues) and improve signal quality is to use null pixel.
    That means you have to make sure you add all those null pixels to your sequence.
    The better solution I think would be to create a small buffer/line driver board which could be used instead of null pixel. The good thing about it is that it will work with any pixel protocol, will be transparent to the sequence, and will work with any voltage.
    If we do GB, the price of such driver would be ~$1.50 or less.

    buffer.png

  2. Likes MrSmoofy, Phil Spencer, angus40 liked this post
  3. #2
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    Default Re: Buffer/line driver - null pixel without pixel

    I would take some. This is a much better solution than working with null pixels.


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  5. #3
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    Default Re: Buffer/line driver - null pixel without pixel

    Quote Originally Posted by RobG View Post
    The most common way to combat effects of cable capacitance (and other issues) and improve signal quality is to use null pixel.
    That means you have to make sure you add all those null pixels to your sequence.
    The better solution I think would be to create a small buffer/line driver board which could be used instead of null pixel. The good thing about it is that it will work with any pixel protocol, will be transparent to the sequence, and will work with any voltage.
    If we do GB, the price of such driver would be ~$1.50 or less.

    buffer.png
    I'd be in for 10. How does it work?

  6. #4
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    Default Re: Buffer/line driver - null pixel without pixel

    Nice to see such a quick response

    Now, the question is, should we make it SMT like on the image or through hole (TH would be 2x or 3x larger.)

    Quote Originally Posted by tucsonlights View Post
    I'd be in for 10. How does it work?
    You plug it inline just like null pixel.

  7. #5
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    Default Re: Buffer/line driver - null pixel without pixel

    Quote Originally Posted by RobG View Post
    Nice to see such a quick response

    Now, the question is, should we make it SMT like on the image or through hole (TH would be 2x or 3x larger.)


    You plug it inline just like null pixel.
    I like through the hole...what would be the dimensions of both?

  8. #6
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    Default Re: Buffer/line driver - null pixel without pixel

    I would take some too I've not needed any yet but would buy some just to have on hand.

  9. #7
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    Default Re: Buffer/line driver - null pixel without pixel

    I'd be in for 10
    "There's no such thing as a dumb question, except for the question that was never asked!!"

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  10. #8
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    Default Re: Buffer/line driver - null pixel without pixel

    Not sure if you've seen THIS? (uAmp)
    Brian

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  11. #9
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    Default Re: Buffer/line driver - null pixel without pixel

    Quote Originally Posted by budude View Post
    Not sure if you've seen THIS? (uAmp)
    No I haven't, but it's pretty much the same functionality.

    The dimensions will be:
    SMT 0.9" x 0.45"
    TH 1.25" x 0.5"

  12. #10
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    Default Re: Buffer/line driver - null pixel without pixel

    I'm assuming that the board is assembled two ways, one with a transmitter chip and one with a receiver? A five-pin chip doesn't have enough pins to have a direction-control pin.
    Phil

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