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Old May 13, 2018   #264
Worth1
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Join Date: Feb 2006
Location: Den of Drunken Fools
Posts: 38,539
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Quote:
Originally Posted by Cole_Robbie View Post
Aha. I thought green was always ground, lesson learned.
Not when it comes to instrumentation wires.
The green and white have 5 volts on them going through a resistor that knocks it down to 1.6 volts.
The closed contacts open up when someone moves the volts jump up to around 5 and the system goes into alarm.
You can also use these same motion detector devices to open up or unlock doors and anything else your heart desires.
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