quick question

Perhaps some of yu in the United States might recognise what I'm about to
describe
In your elementary school days, did any of you ever build a car and traffic
light assembly out of legos, then take it to a computer lab, where you
plugged in coloured cables to match the colour on the legos and program the
whole shebang with the computer? The object was to make the car drive up to
the light, wait for it to turn green and to go on for a few feet before
stopping.
We did that four years ago and I'm dying to know what the software was and
where to get all of it.
Any help is appreciated.

--
J. T. Laurie
Watcher of the Seals,
Flame of Tar Valon,
The Amyrlin Seat
You can pick... strings, tunes, fights, ore, and your battles.
But you can't pick... your family, or your destiny.
And you shouldn't pick... your nose, or someone else's nose
(unless its a really good friend) :)