On Thu, 16 Aug 2001, Quentin wrote: > Even if you do go the X10 route make sure that your electrician runs a > neutral wire to all your light switches. In a lot of houses (here at > least) they only run the live wire to the switch and back. You need both > to do power line comms. > With a little modified x10 hardware, you don't need neutral, if you are using standard bulbs ( like Edison discovered a long time ago ) and you communicate only when the bulb is off. Probably it works with high efficiency bulbs also... Vasile -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.