PIR motion sensor board. Uses the common RE200B pyroelectric sensor in TO-5 can and the BIS0001 IC in 16-SOIC package. Some Chinese vendors also have the TM2291 IC, which appears to be an equivalent device.
PCB layout rendering example:
Infrared motion sensor based around BIS0001 IC. Just like your common security sensor but open source.
PIR motion sensor board. Uses the common RE200B pyroelectric sensor in TO-5 can and the BIS0001 IC in 16-SOIC package. Some Chinese vendors also have the TM2291 IC, which appears to be an equivalent device.
PCB layout rendering example:
Infrared motion sensor based around BIS0001 IC. Just like your common security sensor but open source.
Other