One of my "when I have some time" projects is to make a 'better' (in that it fits my usage case) scanner for all my notebooks, I want something intelligent that

One of my "when I have some time" projects is to make a 'better' (in that it fits my usage case) scanner for all my notebooks, I want something intelligent that I just put a pad under and it takes an image, converts it to pdf and stores it and that detects when I turn the page and takes the next image rather than having to press a button (though that's an option with a floor button). I have the design in my head I just need to build one.