A motor driving device is provided with a motor and a motor driver circuit for controlling the motor. The method includes forming a trench within a plurality of material layers and over a photo-conversion device. Moreover, the platform also includes a bus coupled to the controller having an end that is adapted to receive a device. When the transmitter does not switch states between the measurements, and the second value is less than or greater than the range, then no object is detected, as the change in measured value likely resulted from an outside signal.