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Tetris pcboards

Discussion in 'Members Lounge' started by MrDEB, Jan 4, 2017.

  1. MrDEB

    MrDEB Active Member

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    Am designing, just for fun if it is doable a Tetris pcboard using all SMD
    as of right now the board is 135mm x 60mm. working on getting it more compact.
    Is there any interest in boards?
     
  2. MrDEB

    MrDEB Active Member

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  3. JonSea

    JonSea Well-Known Member

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    "...if it is doable...."

    Why would it not be doable???

    If you use MSOP or TSSOP packages, plan to get a stencil made. It will be difficult to assemble otherwise....and difficult for anyone else without the stencil as well.
     
  4. dave

    Dave New Member

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  5. MrDEB

    MrDEB Active Member

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    thanks
    diptrace says the package I have is a QFP - 44 12 x 12 x .8
    I have a pcboard layout done but not sure if I have them made if they are marketable.
     
  6. MrDEB

    MrDEB Active Member

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    here is a jpeg at 300dpi of board
     

    Attached Files:

  7. JonSea

    JonSea Well-Known Member

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    Why on earth would you zip a jpg file?
     
  8. JonSea

    JonSea Well-Known Member

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    Looking at the schematic for this, you'll need to add a 10k pullup resistor to /MCLR. It's a wonder this circuit ever worked reliably.
     
  9. MrDEB

    MrDEB Active Member

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    good catch
    one issue I ran into was the led matrix. There are so many and different pin outs. locating a source that is priced within reason.
    With all the different sources on Ebay but most lack a data sheet.
    one company I found was KYSAN electronics. NOTE using a 20mm square led matrix.
    Kingbright dosen't have one and Tayda electronics has no data sheet. Sure Electronics is out as well.
    The board is using from Kysan electronics. Looking at selling the boards w/ led matrix
     
  10. JonSea

    JonSea Well-Known Member

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    Have you considered that Graham's design and code are not yours to sell?

    And about how you'll provide support to people who buy your boards?
     
  11. MrDEB

    MrDEB Active Member

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    People that buy a board are on their own for assembly and download the code from DDIY
    As for the board design, It IMO is different by more than 10%
    But yes I have looked for Graham on facebook or contact email but havn't yet had any success.
     
  12. JonSea

    JonSea Well-Known Member

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    FYI Material on Digital-DIY is licenced under Creative Commons BY-SA. It may be informative to read about derivative works and understand the Share-Alike concept. I believe the same is true at ElectroTech as well.

    SmartSelectImage_2017-01-11-08-19-30.png
     

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