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does anyone know how I can get battery powered LED's (seperated by 4-6 inches) to light up in sequence? Answered

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icengBest Answer (author)2012-05-02

Here are several LED circuits.
You never said how many, if U want more, Ask !

A

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steveastrouk (author)2012-05-02

Now I read this as these LEDs were independent, but had to flash in sequence.

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iceng (author)steveastrouk2012-05-02

I read it both ways.
The Left circuit does exactly how you read it.
Turning one LED on at a time and repeats every nine LEDs.

The Right circuit shows latching LEDs turning on in sequence.
That can then be turned off at the same time, and the ability to
lock the clock. 
Removing the relay position can lock with LEDs all on

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steveastrouk (author)iceng2012-05-03

Well that's a third way !

No, I was thinking that he wanted little ISOLATED units with one LED on each, which would magically flash in sequence.

Steve

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miamimac (author)steveastrouk2012-05-03

I do want Isolated units with 1 LED each (there would be 10 - 14 of them), Magical ones would be nice, but if they have to have their own controler, that would be OK as well.

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iceng (author)miamimac2012-05-03

First of course it is a doable design  but how much work and $$ are you
willing to put into this.
More to follow..............

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iceng (author)steveastrouk2012-05-03

Well happy 700+ Best Answers :-D

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steveastrouk (author)iceng2012-05-03

700 ? Way in front of that....

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miamimac (author)steveastrouk2012-05-03

I do want Isolated units with 1 LED each (there would be about 14 of them), Magical ones would be nice, but if they have to have their own controler, that would be OK as well.

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Jack A Lopez (author)2012-05-02

I think the usual trick is to use the old 4017 decade counter, provided you want to do this with 10 LEDs or fewer.

I think this link does a good job of explaining how this is done:
http://www.allaboutcircuits.com/vol_6/chpt_7/6.html

Of course there are other pages, videos, etc, on the same topic. I found that link above using this Google(r) search.
http://www.google.com/search?hl=en&q=4017+led+sequence

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mpilchfamily (author)2012-05-02

Use a 555 timer or a micro controller.

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