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How to Use PIR Motion Sensor without Aurduino | Complete Explanation in Urdu/Hindi |
When the sensor is idle, both slots detect the same amount of IR, the ambient amount radiated from the room or walls or outdoors. When a warm body like a human or animal passes by, it first intercepts one half of the PIR sensor, which causes a positive differential change between the two halves
Motion detectors are small electronic eyes that detect infrared waves-heat waves that radiate from moving objects. When the detector senses an object moving across its field of view-especially warmer objects such as people, animals and cars-it electronically turns on the lights.
Up to 10 meters at an angle of ± 15 degrees. The PIR (Passive-Infrared) sensor functions in the same way as an outdoor light with a motion detector and reacts to movements made by objects that radiate heat (people and animals).
PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. ... They are often referred to as PIR, "Passive Infrared", "Pyroelectric", or "IR motion" sensors.
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