On Wed, 16 Feb 2005 18:12:59 -0500, "Peter Michelson"
wrote:

Yes, a flip-flop would do it and someone is sure to suggest a PIC, both
requiring a fair amount of extra components to actually work. Have you
looked for alternate action switches or relays? It would run your
lights and not require a degree to get it to work.
Glenn Gundlach


Is that because flip-flops require capacitors to store state information? I
would be interested to know the minimum complement of components necessary
to support a single flip-flop. Perhaps there is a good link to this kind of
information (?)

I have a similar request as the original poster. I would like to use a
momentary switch to cycle among three LEDs. Is the circuit design for this
using flip-flops complex? Is there an easier way to generate the same
functionality? It seems that there must be some ICs out there that provide
this kind of functionality out of the box. Does anyone know of any?

Thanks a lot!
Peter

You can use an led chaser kit to do the sequental leds. You can
use just the first two outputs on the chip for flip-flop. I've
got a page below showing some tinkering with the 4017 decade
counter chip that might be useful.

http://www.geocities.com/zoomkat/RSswitcher.htm