You could do this using a PIC processor, one of the small 4 pin devices
and a transistor or two.  should be trivial (imho). I'm not a PIC
programmer however ;-)


On Mon, 2002-03-11 at 10:12, Nate Carlson wrote:
> On 11 Mar 2002, John Scherer wrote:
> > What would be cool is to use a tri-color led and a simple circuit to
> > convert voltages.  This way you would get red for one controller,
> > Green for the Second, and Yellow for the third controller.
> >
> > Tricolor LEDs come in two- and three-pin packages. Although the
> > three-pin, or common-cathode, package easily lends itself to 2-bit
> > control, wiring three crowded pins can be mechanically difficult.
> > Also, fewer manufacturers produce the three-pin types. The two-pin
> > package is easier to connect to a wiring harness and is readily
> > available. However, this package requires more control overhead,
> > because, to light the LED yellow, the device must continuously
> > alternate between red and green.
> >
> > For this application however I thing the three lead version might me
> > simpler.
> 
> Now this sounds cool.  :)
> 
> Anyone feel like making a circuit that would drive one of these suckers?
> 
> -- 
> Nate Carlson <natecars at real-time.com>   | Phone : (952)943-8700
> http://www.real-time.com                | Fax   : (952)943-8500
> 
> 
> _______________________________________________
> Twin Cities Linux Users Group Mailing List - Minneapolis/St. Paul, Minnesota
> http://www.mn-linux.org
> tclug-list at mn-linux.org
> https://mailman.mn-linux.org/mailman/listinfo/tclug-list