Sparda Posted December 12, 2006 Share Posted December 12, 2006 I (regrettably) have no training in electronics, I understand the underlying stuff, but right now I am trying to create a device matron. Is there such a device (or electronic component) that (just like a volt meter) monitors the flow of electricity in a given wire with out been physically connected to the wire (like a laptop mouse pad is able to tell when flash is on the pad instead of other materials). I ask because I wish to create a device that monitors the flow of electricity in a wire. I have taken apart a cheap walkie talkie that makes a very annoying noise when you press the call button. All I need now is a way of monitoring the current in another wire, and if there is enough current flowing, the device needs to out put a current. This will then pass through a relay which will have the same effect of holding the call button on the walkie talkie. When the power stops flowing, the call button will (effectively) be released, and the noise will be made. Am I over complicating this? :) Quote Link to comment Share on other sites More sharing options...
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