[brudgers]

Phones are optimized to handle RF. My engineering advice is to build your application with that in mind.

A wireless webcam is the simplest thing that might work. Hosting a video stream on other hardware might be the second simplest thing.

Good luck.

[LordShredda]

Except, phones have exceptional cameras. You'd be spending just as much on a dedicated camera

[brudgers]

I remember reading “wired USB webcam” in the question, but maybe I misunderstood.