>
> Easy solution (almost too easy!):
> http://www.trafficlights.com/
>
> > I have obtained a traffic light, actually one of the small european types,
> > and would like to use it as a display in the family room.
I agree. The product on that site looks to be the quickest
best way. And the price isn't out of line if you have to buy
much for a DIY project.
I too had a traffic light YEARS ago, back in college days (seems I
spent one summer as an intern for the Traffic Engineering Dept
for the City of Charlotte. This old unit made its way to the
trash, and I rescued it.)
Ah, the memories of telling drunk folks at parties that we'd
gone out on the streets and climbed up on top of a truck to
steal the thing... It finally was passed along to someone
else via a yard sale many years back.
My first timer was an ugly beast I found in a surplus store. Pure
mechanical, with a motor rotating a bunch of cams and triggering
micro switches. Very flexible, but ugly and noisy.
It later got equipped with a circuit from a "color organ" (Remember
those? An audio input triggered lights to flash with the music.)
Kind of fun, but not really as nice as the sequencer.
If you wanted a DIY project today, hunt down one of the "light
chaser" circuits. These are usually for a long string of lights,
with three separate circuits. I'll bet that if you slowed it down
enough, it would do nicely for a 3-light signal.
Joe
flake@a3115jmf.atl.hp.com
|