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2 way switching with passive infra red sensors

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danrogers

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Hi all, more of a electrical question that electronic but I want to set up two pir sensors in my driveway. one will be by the gate, and one by the house. This will then switch on the exterior lights A: when a car drives in, and/or B: when someone walks out the house.

Is this possible with normal exterior pir's? I can't think of a way to wire them that would work?

thanks
 
You would wire them in parallel, like this -

MultiPIRandLampCircuit.gif
 
Hi Duffy, that is great many thanks! I guess PIR's protected against current on their switched side, when they are not switched on? If that makes sense!

Thanks again
 
Yes - it uses a "triac" that works like an open switch when it's off, so no problem.
 
Just make sure that the live and neutral go to the same wires on each PIR.
 
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