During the mechatronics workshop, we developed a robot that controls the DJ program Traktor on iPad Mini 2 by using a Stylus. It is important that the stylus is grounded otherwise it is not recognized by the iPad. The robot is controlled by an external keyboard. Through it we have the possibility to control the joints individually. The circuit had to be soldered together and connected to the arduino, so that we could read the potentiometer and control the axes.