Adding an accelerometer to a device makes it modern, high tech, and fun to play with. Using one seemed intimidating to me, though I never investigated the issue. But in my internet travels I found a simple schematic giving a PIC processor one axis of feedback, with only 3 wires!
You can find more information at Analog Device's homepage for the ADXL320 Accelerometer.
Now, imagination is the limit. How could you use an accelerometer?
