On Thu, 16 Nov 2006 08:37:39 -0500, PeterD
wrote:

On Thu, 16 Nov 2006 06:59:13 -0500, "Wombat-Pipex-News"
wrote:

Hi all.
Can anyone give me a diagram or help on how to do this..
I've got 3 LEDs, and 3 Momentry Switches.
Id like to make it so that 1 LED is on at all times.
eg.
123 - ABC
Press 1 and A Lights, BC off.
Press 2 and B Lights, AC off.
Press 3 and C Lights, BC off.
And so on. Defalut would be 1-A when inital power up is done.

I could do this dead easily with small relays, but Im trying not to use
them. Idealy it would use Transistors or a small chip.
The source is +5V fed from a 7805
Im trying to get away from the old Clicking way of doing it. !!

Any help on this would be very welcome.

Here is what its for.
http://www.youtube.com/watch?v=fT1mNeno8XY
The 3 Large LEDs at the bottom center.

Regards
Wombat.


WEll, I don't see 3 large leds at teh bottom center, but...

Perhaps three flip-flops?

Doing it with one switch is really easy with a counter. (press and A
lights, press again, B lights, press again, C lights, and over again).

---
Not only is that not what he asked for, it won't work properly since
the first time he pushes the switch "A" will light, then the second
time "B" will light, then the third time "A" and "B" will both be
lit, and the fourth time "C" will light. Pressing the switch again
will start the cycle anew.


--
JF