144 LED Display

Discussion in 'The Projects Forum' started by Art, Jan 27, 2010.

  1. Art

    Thread Starter Distinguished Member

    Sep 10, 2007
    785
    61
    Hi Guys,
    Just a little something I whipped up with parts from both Dick Smith and Jaycar.
    Scrolling displays are nothing new, but hopefully some of the demos shown here
    have not been done before.

    Sine Wave Message Scroller Demo:
    http://www.youtube.com/watch?v=Q_pF8WSTVGU

    Three Part LED Display Demo:
    http://www.youtube.com/watch?v=tIhrOQJ8j5g

    I'd like to make a much bigger one with port expander chips, but LEDs are so expensive.
    I'm thinking on expanding on the idea of a playable game, and maybe making a
    duplicate of the circuit with different colour LEDs.
    Cheers, Art.
     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    I've been known to buy big quantities of LEDs. If you buy 400-500 you can negotiate somewhat with some vendors, but only a bit.

    Are you asking where the cheap prices are? If so you need to define what you are after.
     
  3. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
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