I'm planning on making a projector but I don't have the money to start getting into +15k scanners or buying a laser with power modulation. My current projector is made from a Parallax Basic Stamp 2 microcontroller w/ essentially barcode scanners (worked well, but too slow). I'm just in it for beam effects, and was considering purchasing these. If I find the controller isn;t doing what I want, I was going to make my own out of another microcontroller. I would even consider programming my own software instead of using theirs. What do you guys think? Anyone have experience with these?