Clever idea, but I think I would prefer automatic doors and conveniently located motion-sensing sanitizer dispensers. And as much as I like embedded software, I

Clever idea, but I think I would prefer automatic doors and conveniently located motion-sensing sanitizer dispensers. And as much as I like embedded software, I don't think it's particularly useful or worthwhile in something like this, with the exception of monitoring the amount of remaining sanitizer in individual handles. Also, from what I've heard, hand sanitizers aren't great for you. Placing them on doors, encouraging (or perhaps pressuring) people to use them frequently, might do more harm than good. It would be vastly more practical and effective to strategically place motion-triggered sanitizer dispensers after doors, especially in patient rooms and on the way out of certain sections of the hospital. It's respectable that you're thinking outside the box and looking to solve a real problem, but this needs more thought.