On Mon, 24 Feb 2003, Jan-erik Soderholm (QAC) wrote: *>A bit of-topic, but... *> *>Have you thought of that, *>when using handheld remotes (for e.g. a TV set), and the *>betteries are beginning to run low, most people begin to *>press *harder* on the keys to get a connection... *> *>Probably more of a behavioural science questions *>then an electronic question :-) Yes but it could be used to light (flash) a LED or a piezo to request battery change. Conductive rubber contacts will have a different average resistance when pressed down hard than when pressed lightly. A micro could observe the last 100-200 presses and request the user to push easier and/or suggest service using this data ;-) (alternate solution: remote controller squeaks 'ouch! that hurt!') Peter -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body