FP3000: mmWav AND PIR?

Aqara Products
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1

I’m curious, What is the use case for having both? In my experience mmWave is far superior.

Please enlighten me.

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2

Hello

Pir is more reactive, mmWave more acurate so you got best the best for all situation.

Best regards

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Guessing it has to do with autonomy on battery: mmWave is superior but needs more power.
They can use PIR as the main sensor, to know when to trigger mmWave sensor.

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Isn’t one of the advantages of mmWave vs PIR that mmWave detects very small movements?

You could turn off mmWave if there is nobody in the room and keep it off till PIR senses motion. But as long as there is someone in the room you need to keep the mmWave on to make sure you still detect them if they sit still and locate them correctly.
In case of a Bedroom that would mean running the mmWave all the Night. For the Kitchen or Bathroom though mmWave would only run a few minutes per day.

If turning off mmWave would save significant amount of energy, wouldn’t that mean that a sensor in a Bathroom or Kitchen has way longer runtimes than a sensor in a living room? In that case I wonder what scenario was used to determine the runtime of the FP300. The place I would put mine,it would be in a scenario where the mmWave would need to run mostly all Day and all Night.

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This work in conjunction for faster response and autonomy of the device.

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Thanks gang, I get it now. I’d wondered how they got that battery live with mmW.

(Something new every day: :heavy_check_mark: )