A movement sensor comprising an elongate object, comprising a piezoelectric material, having an anchored end that is anchored to a base, and an unanchored end which is free to move in at least two degrees of freedom and to which a force is applied, the unanchored end of the elongated object being configured to move in response to the applied force. A plurality of electrodes are disposed on the elongate object and are configured to cooperate with the elongate object in producing signals usable to determine the magnitude and direction of the movement of the unanchored end due to the applied force. Sensing circuitry is electrically coupled to the electrodes and is configured for processing the signals from the electrodes so as to determine a magnitude and a direction of movement and produce a signal indicative of said magnitude and direction.