The video demonstrates how to wire up a Passive Infrared Sensor (PIR) using 4-core security cables. All Gallagher inputs are balanced 4-state inputs and must have two 4k7 resistors wired at the device ...
As an example, [Circuit Valley] has an IKEA Vallhorn motion sensor for a teardown ... op-amp for signal conditioning the PIR output, but the pinout seems not to support it and from here we ...
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