Hi, I am working on a project to read the oxigen level in a person using a pic. I'd like to know if anybody can provide any pointers in the subject as far as sensors, theory, etc, is concerned. Any help will be appreciated. Thanks. Vic Lopez ********************************* Get your free E-Mail and Homepage Go to http://www.networld.com ********************************* -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu