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Old 05-06-2008, 11:20 PM   #1
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Default Logic circuit help needed!

I am trying to build a scanner led array (see knight rider) Like that little stripe of leds that blinks back and forth. I want to design a circuit like that that will work with 12 leds. Ive found some schematics for arrays of 6, but not 12. They are going in a pair of hood scoops. NOT on a bonneville
Does anyone on here know how I could pull this off? Im starting to wish that I paid more attention when I took logic circuits in college :P
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Old 05-07-2008, 09:19 AM   #2
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I think all you would have to do in the circuit is run them in series not parallel. Thats about all i can remember i will look up some stuff from my old books and try to help you out.
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Old 05-07-2008, 09:57 AM   #3
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The last output of the array will turn on the next input in the 2nd array, you need 2 each 6 segment displays.
Think there is a plan here somewhere
http://www.evilmadscientist.com/
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Old 05-07-2008, 11:42 AM   #4
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Quote:
Originally Posted by blackout513
I think all you would have to do in the circuit is run them in series not parallel. Thats about all i can remember i will look up some stuff from my old books and try to help you out.
I think you may be right. It depends on what the output of the circuit is. Logic circuits usually output 5V IIRC and red LEDs are 2.2 volts, so I could series them to reduce the load on the circuit and put lower value resistors in to compensate. That should be easy to figure out once I know what components Im using.
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Old 05-07-2008, 12:13 PM   #5
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