>> #1 ) Has anyone on the list tried to use a LM to track the >> motion of a linear motion stage ? > >Lots of stuff out there. Try Google (optical mouse robot sensor). Hmm, this one looks interesting (found using that Google). http://alexandria.tue.nl/repository/books/615405.pdf -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist