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8x8 LED Matrix using 8051

Discussion in '8051/8951' started by skydemon2008, Mar 5, 2008.

  1. skydemon2008

    skydemon2008 New Member

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    Hi guys, i'm planning on displaying words through two 8x8 LED Matrix using 8051 microcontroller and C programming. i would like to make the words to move as well.
    My problem is for the coding part, what type of statement that i should use in writing the code? or do anyone has the related sample C language code that can share with me?
    thx.. :)
     
  2. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    Can't help you with either C or 8051, but you might find it helpful to study my 8x8 PIC tutorial? - if nothing else you can 'steal' my character set (I stole it from the Hitachi LCD modules!).
     
  3. skydemon2008

    skydemon2008 New Member

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    oh i see.. ok thanks a lot
     
  4. dave

    Dave New Member

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  5. rushi53

    rushi53 Member

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    I have designed a Rolling Display using LED matrix display.

    If anyone interested in it, then please visit:
    www.projectsof8051.com/projects/06-rolling-display-using-matrix-leds.html

    Let me know if you need any more help
     
  6. john.l

    john.l New Member

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    do we need to use logic gate ics or decoders or timer/counter ics.... please guide me in this..... thanks in advance....
     
  7. rushi53

    rushi53 Member

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    The circuit which I developed does not contain logic gates/timers/counter
    But it contains Decoder ic - 3:8
    and Latch IC

    Please let me know if you need any more help.
     
  8. john.l

    john.l New Member

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    why latch ic is required
    can't we use the flashing logic over there ?
    and can we use 4:16 decoder, so as to increase the character count in the display ?
     
  9. rushi53

    rushi53 Member

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    you can use flashing logic but then programming will increase
    to avoid this, use latch ics...

    and yes, u can use 4:16 decoder...
    I have used 3:8 decoder and have created 64 columns which means 12 characters (considering 7 by 5 matrix for each character)
     
  10. terminator.s68

    terminator.s68 New Member

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    hello rushi53, thanks for providing this information...
    can you provide circuit diagram here... so that I can develop circuit easily and fastly...
     
  11. birdman0_o

    birdman0_o Active Member

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    Rushi53, stop trying to sell your kit, your website only provides basic information about how you went about your project. If you have anything that can actually help him. I.e. source codes or schematics, feel free to help.
     
  12. rushi53

    rushi53 Member

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    Hi birdman0_o
    sorry I didn't post the circuit diagram.
    Today I have uploaded the circuit digram :)

    Note: Some modifications are necessary for the simple understanding of the circuit diagram. I will do them and will let u know.

    Please revisit the page for circuit diagram.
     
    Last edited: Oct 4, 2009
  13. birdman0_o

    birdman0_o Active Member

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    Thanks!
    Hopefully it will still be of use to the OP, it is 19 days later!
    Otherwise it will help in the future when other people have the same problem.
     

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