Microwave Sensor with Arduino for humans and objects detection behind walls, Doppler Radar Sensor

Published at : 23 Dec 2025

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Microwave Sensor with Arduino for Humans and objects detection behind walls:
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Project Description:
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Today, I am going to use this digital Microwave Sensor with Arduino for moving humans and objects detection behind the walls. This digital microwave Sensor uses doppler radar to detect moving objects using microwaves. This differs from the method used by regular Infrared Sensor, Ultrasonics Sensor, PIR Sensor, TOF10120 sensor, etc. I have used all of these sensors in beginners, intermediate, and advanced level projects. I am not saying these sensors are bad but this microwave sensor is just at another level as the microwaves are sensitive to a variety of objects and the amazing thing is its sensor readings are not affected by ambient temperatures. So, that’s why, this type of sensor is widely used in industrial, transportation, and civil applications such as measuring liquid levels, automatic washing, measuring a vehicle’s speed, automatic door motion detection,car reversing, production line material detection, automatic lights control system, high level security systems, and so on.

As you know Microwaves can penetrate through walls, so, I am going to use this digital microwave sensor for humans and objects detection behind the walls. So, let’s go ahead and watch this microwave sensor in action.

Since I am using this digital microwave sensor for the first time, that’s why I decided to start with a very basic project that is to control a light whenever there is any movement. This can be a street light, or a corridor light, or your lawn lights, or a light inside a room. It totally depends on your application. This microwave sensor is simply perfect for indoor and outdoor applications...



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Electronic Clinic helps the students and other professionals to learn electronics, designing, and programming. Electronic Clinic has tutorials on Arduino, Arduino Nano, Raspberry PI, image processing, gsm based projects, Bluetooth based projects, esp8266 projects, Nodemcu projects, robotics, desktop application designing and programming, PLC, SCADA, RC Planes, Electronics, Power Generation, HMI, and much more. Check my Playlists.


#HumanDetectionBehindWalls
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