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Component tolerance issues?

Discussion in 'Hanson Electronics' started by AAH, May 29, 2014.

  1. AAH

    AAH I love blinky lights :) Community Project Designer

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    I've just started testing boards in the hopes of sending some boards to the Sydney mini and the 2811DC boards aren't playing nice. I'm not sure if it is the different branded opto isolator or the fact that the original pixels were 2811F and these are 2811S but at this stage I have pretty much ran out of time to ship some stuff to Sydney.
    There is the possibility that if someone has a P.O. box I can still get stuff there.

    Alan
     
  2. nzlongfellow

    nzlongfellow Dennis from NZ

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    Hi Alan.
    I'm staying at the Haven Inn Sydney, 196 Glebe Point Road Glebe NSW 2037 if any help.
    Dennis Carswell (Guest)
    I'm travelling over tomorrow so Email me if you use this offer.
    Cheers
     
  3. OP
    OP
    AAH

    AAH I love blinky lights :) Community Project Designer

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    There were 2 problems and it turned out that neither were board issues. Both issues were between the keyboard and the seat and were the result of assumptions.

    Boards work 100% fine but I do now know that I need to wind up the current limit on my adjustable power supply (200mA isn't enough for board, a bunch of pixels and a 1A resistive load) and I also know that the $3 Ray pixel testers don't drive my 2811 boards directly.
     
  4. BundyRoy

    BundyRoy Senior Elf

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    Good to hear to got it sorted Alan. We have a bloke at work with a lot of BCC (between computer and chair) computer issues. Gives us all lots of laughs between frustrations.
     
  5. ԆцряєсϮ

    ԆцряєсϮ Senior Elf

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    LOL :D
    Ive been caught on that one too..........
    Most issues generally end up being caused from that end of the keyboard :p
     
  6. BundyRoy

    BundyRoy Senior Elf

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    The other good news to come from this is I now know that an opto isolator exists and after using google have a very rough understanding of what it does.
     

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