Hardware Reference
In-Depth Information
And there you have it! As you move your device around, you should see the color of the
ring change. The only step left is to package the device. You can put the pieces together
on a button or a write strap, or connect them directly to your robot, and your LED will
give you an indication of the direction in which the robot is heading. You could easily
change the sensor to one that measures temperature, distance, or light; the possibilities are
almost endless.
