Then they programmed the RCX, the LEGO microcomputer, using RoboLab.
At the LEGO City at Marshall University they used the Red Rover
program to run the City and
the Rover at Davis Creek Elementary.
More building and programming.
One car used one motor and gearing to go both right and left.
The other takes a motor for each side.
With two light sensors the program can have one motor go when one
sensors reads greater than the second,
Or the motor on each side can turn until the opposite sensor reads
brighter,
then the car can follow a light.
The speed trap is set up with two light sensors. The timer is zeroed
out when the car goes through the first photo gate.
If the time is greater than the time set then the car is going slow
enough and if the time is too short then the red light goes on.
The monorail was programmed to reverse when the light on the end
read brighter.
The motor can be used as a dynamo.
Connecting a motor to a light and making the motor shaft rotate
generates electricity.
Today's City has a monorail that can be controlled by light, a speed
trap, a gate and three cars.
One of the cars is an "intelligent" means of transportation in that
it is a line follower.
This car visited SENSORSCITY.
The program for a car with two motors and a light sensor.
Programs can be sent over the internet and run at SENSORSCITY.
Information comes back as live video and Excel file and graph.