The SW-420 Vibration Sensor will detect large disturbances and send the data to the Arduino. The occurrence and strength (Intensity) of the vibrations will be displayed on an LCD screen.

[Lee] took off the vibration motor and used it as an output port for a simple program to dump the ROM. An Arduino picked up the data at a low baud rate and produced an output file.

While there are a couple of open-source brushless drivers already available, [neuromancer2701] created his own brushless motor controller on an Arduino shield.