Download the PIR_Motion_Sensor datasheet PDF.
This datasheet also covers the PIRMotionSensor variant, as both devices belong to the same pir motion sensor family and are provided as variant models within a single manufacturer datasheet.
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PIR Motion Sensor Created by lady ada Last updated on 2020-01-25 05:57:43 PM UTC Overview PIR sensors allow you to sense motion, almost always used to detect whether a hu...
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s allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don't wear out. For that reason they are commonly found in appliances and gadgets used in homes or businesses. They are often referred to as PIR, "Passive Infrared", "Pyroelectric", or "IR motion" sensors. PIRs are basically made of a pyroelectric sensor (https://adafru.it/aKh) (which you can see below as the round metal can with a rectangular crystal in the center), which can detect levels of infrared radiation. Everything emits some low level radiation