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The HC-SR501 PIR (Passive Infrared) Motion Sensor is one of the most widely used human motion detection modules in IoT research, embedded systems, and security projects. It works by detecting infrared radiation changes caused by human body movement, making it ideal for motion-triggered applications.
This sensor is frequently used in academic research projects such as smart security systems, energy-efficient IoT devices, occupancy monitoring, robotics, and automation research. Its low cost and high reliability make it a standard sensor in university labs, IoT prototyping setups, and industrial R&D experiments. |
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