Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
??? The device would be the camera. You wouldn't build it, you would buy it. There would be no moving parts.
What you are describing is a mechanical camera to look at a point of light reflected off a white screen, haul the image sensor around with a couple of stepper motors - I wouldn't suggest building one of those.
As for the camera, is there going to be enough dynamic range and how would you lock the "agc" (the shutter controls and post-processing) so that they aren't varying on their own? Is that easy in most cameras? And can you control those from a PC?