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Subject: Re: controlling leds

Date: 01/06/03 at 1:07 PM
Posted by: Richard Astley
E-mail: mail@litesolutions.co.uk
Message Posted:

In Reply to: Re: controlling leds posted by David Ashby on 11/27/02 at 5:32 AM:


Many thanks, I gave thet circuit a go and it works great. Now I need some help in designing a small circuit. I want to be able to fade and chase through 3 channels of LEDs (3 circuits). for example channel A will fade up , so only A is on, then channel B will fade up so both A and B are on. The channel A should fade down leaving just B on. Then channel C fades up so that B and C are both on. Then B should fade down leaving just C on. Then A fades up so C and A are on then C fades down so we are back to the beginning with A again. So there are 7 steps in total.

I need to be able to adjust the time it takes to fade from 0% to 100% with a pot and the duration each step is on for with another pot. Also a switch a turns all 3 outputs to 100% would be usefull.

The overall levels can then be adjusted by the 3, already existing, pots.

Hope your able to help.

Kind regards

Richard Astley

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