Fig. 6.

: Electrical circuitry that enables the vertical movement of the microphone. The bottom part of the robot was assembled from the kit Rover V2 (RobotShop). A geared motor (MO-SPG-30E-60K) was installed on top of it, fixed inside a custom made frame. The motor controlled the elevation of the extension arm, that held the microphone. An Arduino-compatible board (part of the RobotShop kit) controlled the robot׳s tracks and the geared motor. The later was connected to the board using a custom made PCB circuit, utilizing an H bridge driver.