I was thinking something along the lines of sensing if the plug is near the socket... you might have to filter things a little bit to avoid triggering when the plug is handled, ie look for a steady state. There's lots of touch sensitive sensors that could be adapted. On 5/10/07, alan smith wrote: > hmmmm....explain that a little more. I can stand delay...meaning that even a second of delay. I'm not really familiar with capacitive sensors > > Alex Harford wrote: 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 > > > > --------------------------------- > Ahhh...imagining that irresistible "new car" smell? > Check outnew cars at Yahoo! Autos. > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist