This is aPyrolectric sensor(PIR) modulewhich developed for human body detection.Its is also calledMotion Sensor.APIR detectorcombined with a Fresnel lens are mounted on a compact size PCB together with ananalog IC, and limited components to form the module. It detect the motion by detecting the changes in the IR levels emitted from the object.It can be used as motion detector for security systems or robotics. It works from3.3 V to 5 V DCand gives TTL output which can be directly given to microcontroller or to relay through a transistor.
- Sales Package:
1 pc x PIR Motion Detection Sensor HC-SR501 for Arduino/Raspberry-Pi/Robotics
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