The hardware consists in an Arduino Mini Pro 3.3V, 2 digital accelerometers and gyroscopes and an XBEE.

The Arduino reads the data from the accelerometers positioned one just above the knee and one below. While a trained doctor performs the pivot shift maneuver all data is processed by the Arudino and sent to the PC via the XBEE cards. All data is displayed in real time on the PC using a python cross-platform software for analysis