On 5/10/07, alan smith wrote: > Mechanical may be the best. If I could find a AC recpeticle that the blades touched when the device is unplugged, and opens when the device plugs in. Does it need to be instantaneous? If not, what about some kind of capacitive sensor near the socket? -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist