Has anyone thought about building a board around these PIR.  Am412.  They make others.  This is a all in one pir. 

Digital Intelligent Passive Infrared Sensor AM412

AM412 is a new digital intelligent PIR sensor. This Smart digital detector
offers a complete motion detector solution,with all electronic circuitry built into
the detector housing. Only a power supply and power-switching components
need to be added to make the entire motion switch, a timer is included.


Features and Benefits


Digital signal processing(DSP)

Power adjustable,save more energy

Two-way differential high impedance sensor input

Built-in filter,screen the interference by other frequency

Excellent power supply rejection,insensitive to RF interference

Schmidt REL output

Low voltage,low power consumption,instantaneous settling after power up

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