Fellow PICsters, I'm wanting to design something for my mom....here we go =) She's sort of bed-riden (or ridden?) at the moment, and she's wanting something that'll bring water to her on demand. So what I was thinking, is to have a bright light attached to the side of her bed, and have a bot of some kind that is attracted to it (a photovore). This seems like the simplest implementation for me because of my lacking analog/digital design knowledge. So what I'm wondering, are there any other alternatives? Maybe I could do some kind of line follower? Any help from you geniuses would be greatly appreciated! Tim H.