LED Flicker circuit

Hello! I'm working on an art project that I wish to illuminate with 26 white LED's and have a simulated flickering candle. I found Bob Bowden's web page of Hobby circuits and the diagram/description of the "line powered white LED's" with how to use 25 LED's and how to add more or less...seems pretty straight forward. But as I'm not a circuit designer, I'd like to ask for some help with the candle flame flicker circuit. My project is a 26 point star that I want to be illuminated by the white LED's from the points toward the center, at the center will be a candle with the simulated flame. I like the idea of the line powered LED's...don't have to mess with a heavy transformer and the wires should be pretty easy to hide along the frame of the star. I have been kicking this project around in my head for a while and have decided that it time to complete it. Any help/suggestions are greatly appreciated.

Greg

Reply to
swampstomper
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Reply to
swampstomper

Hi,

Here is what I did with a PIC and a small lamp....

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Luhan

Reply to
Luhan

Hey Thanks! I found the Nuts and Volts article at parallax.com. This is what I'm looking for but I don't know about microprocessers and stamp modules...this is a very interesting possibilty though....The PIC has potential too. but I would like to adapt it to LED's and really don't know hao to do that or programming the PIC. Is there any possibility of a lower tech solution? I'll keep on looking!

Thanks again!

Greg

Reply to
swampstomper

The Oct '05 issue of Nuts & Volts had a short article on using LEDs to simulate flickering candle flames. Check their website for some info, although they don't have the text of back issues on-line. Maybe your local library? The project described in the column isn't line powered but you might be able to adapt some of the ideas.

--
Rich Webb   Norfolk, VA
Reply to
Rich Webb

What size are we talking here Greg? You can buy those candle-shaped light globes that run on mains power with a simulated flame already inside it. Should be able to get it from a local lighting specialist.

Jason.

Reply to
Jason S

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