Human presence sensor (not IR)

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mackowiakp
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Human presence sensor (not IR)

#1 Post by mackowiakp » 20 Nov 2023, 16:34

I'm browsing the project sources but I don't see support for a human presence sensor such as the LD2410 or similar.
I'm not talking about IR sensors, but Doppler radar sensors. Is it planned to introduce such a sensor into the driver set?


mackowiakp
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Re: Human presence sensor (not IR)

#3 Post by mackowiakp » 20 Nov 2023, 23:29

Ooo ! Very fine - THX for answer.

Haldi_2
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Re: Human presence sensor (not IR)

#4 Post by Haldi_2 » 23 Nov 2023, 01:25

Oh... thats cool.

On their Homepage they claim "Directionality support".

Is it possible to detect if someone is moving from left to right or right to left?
I'd need something to check if someone enters or leaves a room.

TD-er
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Re: Human presence sensor (not IR)

#5 Post by TD-er » 23 Nov 2023, 08:29

If it is possible, I guess you can only detect moving closer or away from the sensor, not left/right from the sensor.
Then you probably need multiple sensors and use the data among them to triangulate the position.

bidrohini
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Re: Human presence sensor (not IR)

#6 Post by bidrohini » 23 Nov 2023, 15:31

Haldi_2 wrote: 23 Nov 2023, 01:25 Oh... thats cool.

On their Homepage they claim "Directionality support".

Is it possible to detect if someone is moving from left to right or right to left?
I'd need something to check if someone enters or leaves a room.
For left-right movement detection, one approach can include using multiple sensors as per TD-er's suggestion. Another option that you can consider is using computer vision. You can use OpenCV. Following is an example of an hand tracking project using OpenCV and Micropython.

https://www.pcbway.com/project/sharepro ... b1a01.html

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