Martin McCormick wrote:

>                                                                  Some
> motor cycles and bicycles don't have enough metal to register and cyclists
> have been seen jumping off their bikes and hitting the crosswalk buttons
> when there isn't enough traffic around to cycle the lights.:-)

I don't know what effect if any my Titanium frame has on the inductance
of these sub-surface spiraled signal samplers. But my steel spokes and
chain certainly have a stronger effect when I lean my bicycle over. If
that doesn't work then I run the light.

>        I don't know what hardware is actually used, but traffic signals
> always seemed to me like a perfect use for PIC's.

That is, of course, someone other than the traffic light designers
were programming them. I mean if we left the PIC development up to the
same people that design the switching logic we would have an even
larger mess on our hands. I wish I could be paid a nickle an hour for
the time I've spent thinking about better ways to implement traffic
switching logic. It would sure buy a whole lot of pizza...

Scott
--
                                 __o
  I buy pizza instead of gas.    \<
                              (*)/(*)