You will get data back. The green line dips at each time the
traffic passes a light sensor.
The white line is the data back from the reflection from the train.
The red line steps up each time the touch sensor at an end of the monorail
was touched.
Various parts of the CITY also operate when you run programs through
http://lego.Marshall.edu The rover on Mars South Pole http://lego.marshall.edu is ready for Teleoperating.
Look closely to the back of the view through http://legocamera.marshall.edu and you can see the rover move while you run
prorams through Red Rover.