> I think that you may actually have suggested one possible solution:=20 > use a small SMD resistor that has been painted with=20 > temperature-sensitive paint. I've read about temperature-indicating=20 > paints or pastes that permanently change color when their trip=20 > temperature has been reached. >=20 > I'm guessing that you could easily achieve 100C (or more) with a=20 > suitable SMD resistor (1/10W or 1/16W). >=20 > dwayne >=20 http://thermalpaint.com/ -- Bob Ammerman RAm Systems --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .