LED Chaser Question

Discussion in 'The Projects Forum' started by madmaniac, Nov 27, 2008.

  1. madmaniac

    Thread Starter New Member

    Nov 27, 2008
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    0
    I need to be able be able to run this cicuit (http://www.evilmadscientist.com/article.php) off of 12 volts instead of 9 volts, with 24 green LEDs. What all will need to be changed to accomplish this task:confused: All help is much appreciated.
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,649
    2,348
    Hello,

    Wich project do you mean?
    Your link leads to some kind of main page.

    Greetings,
    Bertus
     
  3. madmaniac

    Thread Starter New Member

    Nov 27, 2008
    3
    0
  4. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    If you read the article he did the large one in clusters of 4, with basically the same circuit (4X10=40 LEDs). Are you wanting to do 24 descrete steps? It can be done, but it will involve a lot more circuitry.
     
  5. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    Increase the value of the 330 ohm current-limiting resistors for the LEDs to 470 ohms so the LEDs don't burn out when the supply is 12V.
     
  6. madmaniac

    Thread Starter New Member

    Nov 27, 2008
    3
    0
    Thanks for the help.
     
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