I want to detect when a normal powerswitch is set to on (and off).
A transmitter like the KaKu AWMT-230 is not an option, because these kind of transmitters only sends a signal when there is also a powerconsumer attached through wire.
So i need f.i. a lamp/bulb to get the AWMT-230 to work. That’s not an option ofcourse.
Does anybody knows a trick/device which does not consume (or minimal) power to get things done ?
(sending a signal when it receives power and again when it is switched off).
Replacing the switch for a radio capable one (like KaKu 8802) is also not an option. The switch is part of a specific type/serie and is attached next to an outlet of the same serie/type.