Living on the Edge! Go Full Screen to see in greater detail?
Examine the Movie
The program is similar to the last.
Here the RCX Cart runs over the table at slow speed (use a modifier to reduce the speed).
It stops when it gets to the edge of the table.
While the movie gives clues as to how the program is created, it also shows that the Cart should stop at the table's edge, no matter how long it has been traveling for.
The pictures below provide hints as to the icons and possibly the settings you might use to create the program in the movie. The numbers might be very different from one you might use. They depend on how much light there is in the room.
|Light Sensor at start - remember lighter surfaces reflect more light and will give higher readings.||Light Sensor at end - darker surfaces reflect less light and therefore will give lower readings.|
What you have to do!
|Cameras - Used to provide robots with 'eyes'|
|Gyroscope - Helps robots tell which way is up.|
|Sonar - Help robots judge distances between itself and other objects.|
|Electronic Compass - Used with GPS system to help robots find their way about.|