A colleague just read me a brief blerb about a new power device that gets some small amount of electricity from Piezo sensors. The 'Joule theif" as in Joules of energy, can power small 3.3 volt electronics from vibrations that are said to be below the threshold detectable by people.
They tout it for remote sensing as in temperature/pressure etc, and have a demo kit with a microcontroller and wireless transmitter. We may get one just to fiddle with. No particular BHM application, just a cute idea I thought I'd pass along for fun. tom Fowle
