Compass for mountains and water
Compass for mountains and water is a working compass housed within a suitcase that points to the closest inland body of water and closest mountain. It uses GPS, two stepper motors, a digital compass, and a microcontroller to direct two laser-etched pointers. A list of coordinates of the bodies of water and mountains are hard coded into the microcontroller. The GPS cross-references your current location with the stored ones and turns each motor to point in the appropriate direction of the closest mountain and body of water.