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Derive low voltages signal/output from PIR floodlight?
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Ian Stirling
Posts: n/a
wrote:
I would like to derive an audio alert from a PIR floodlight. To be more
specific: let's say I have the floodlight above a back window and
driven from a three-pin plug from inside. I would be happy to bring
additional cabling from the PIR.
The safest and simplest way to do this is to find a 240V relay that will fit
inside your PIR device. (assuming you are competant to fit this safely,
properly insulated, and secured)
As most floodlights have a choccy block connector in, simply connect the
relay coil across the floodlight terminals.
Now, you have a switch that goes on when the floodlight does.
Connect this to a source of power, and the bell/buzzer of your choice.
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