Interfacing HC-SR501 PIR Motion Sensor with Raspberry Pi

Contents 1 Working of PIR sensor HC-SR501 1.1 Adjustment 2 Circuit diagram 3 Python Program 4 Output All living beings radiate energy to the surroundings in the form of infrared radiations which are invisible to human eyes. A PIR (Passive infrared) sensor can be used to detect these passive radiations. When an object (human or animal) emitting infrared radiations passes through …

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