With the help of my personal tutor, we have managed to get the stepping motor working via Ardiuno.
This was just an experiment to see if this idea (way 2) of using a stepping motor would work in order to make the projector rotate.
Below is an image of the Ardiuno setup with the motherboard and stepping motor:
This image below is a preview of the coding that is sent to the stepping motor in order for it to spin around.
The experiment was successful, the next step to solve the issue of rotating the projector is to get a slightly more powerful and get that working successfully.