Optionally, an additional servo can be purchased, and the robot can be extended by a pan unit (swivel unit). The complete kit already includes an additional
U-holder with accessories. Sensors or faces, for example, can be mounted on this. Please also have a look at the additional downloads for the Robobug. In the
download area there are various 3D printable files available to expand your robot. The Pan unit is mounted in the same way as the legs are. Figure 81 shows
the fully assembled Pan unit on the robot.
The servo can then be controlled via a user board, e.g. via a Arduino™ UNO. The servo is connected to one of the pin headers SU1 to SU3.