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Description
Non-contact detection
Strong resistance to radio frequency interference
Wide detection range and high velocity
Supports non-living object detection
The Microwave Motion Detector Sensor applies the Doppler effect to detect moving objects using microwaves. This differs from the method used by a regular infrared (IR) sensor as microwave is sensitive to a variety of objects that are microwave-reflective, and its sensor readings are not affected by the ambient temperature.
This type of sensor is widely used in industrial, transportation and civil applications such as measuring vehicle speed, liquid levels, automatic door motion detection, automatic washing, production line material detection and car reversing sensors etc.
This sensor has interesting applications in being able to detect motion behind surfaces like doors, windows, and walls. I combined this sensor to LEGO EV3.
