My company is trying to make our mobile app developed using flutter dart to be available for use in a POS System. but right now i don’t know how to develop the app on the POS (which is an android).

This is the POS System am talking about.

And now am trying to connect the pos to my windows via usb but my pc isn’t even detected anything the device and there is hardly any help on the web for it both on google or people that knows how to do so.

So please how and where can i go to learn how to both connect the usb and use it to develop the app.

Thanks, if there is any question please let me know.