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PIR Sensor Devices

Md Nazmul Islam
By Md Nazmul Islam
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A PIR (Passive Infrared) sensor detects human presence by sensing infrared (IR) radiation emitted by the body. When a person moves within its range, the sensor detects the change in IR energy and triggers an output signal, indicating presence.

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Md Nazmul Islam
Md Nazmul Islam
Electrical engineering professional and founder of VoltageLab, focused on helping electricians and students learn faster and build real-world skills through simple, practical learning tools used by learners worldwide.

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