Wired solution
In addition to the app solution, there is of course the option of transmitting the signal to the projector via cable. The choice of projector for Apple iPad users is actually unlimited, as there are adapter solutions for VGA connections and HDMI connections. However, it is important to choose the right adapter for the iPad generation. Because up to and including the 3rd generation of iPads, the 30pin connector was used, whereas from the 4th generation onwards, the Lightning connector is used. So you have to pay more attention to the right choice of adapter than to that of the projector. If the right adapter is used, only an HDMI cable or VGA cable is needed. Then the iPad can be connected to the projector. In this case, the entire screen is mirrored, not just the app surface, as is the case with wireless solutions. Although mobility within the room is limited, this method is otherwise very useful