Since some time there now are various mmWave presence sensors available in the market. This type of presence sensor, especially the ones combined with and integrated PIR sensor, would be an ideal addition to the Homey landscape. This sensor would mean a tremendous step in creating flows that really act on people’s presence in a space and therefore improve automations based on presence and possible energy savings.
If anyone is aware of any of these sensors being or becoming available within the Homey landscape. Or or anyone would like to take on a project to make this avaialble, I believe many users would be very happy with this.
I have this one and it is OK but a bit too sensitive. It reliably detects when someone is in the room but also detects when someone uses the toilet paper in the cloakroom (the roll holder is fixed to the other side of the shared wall). I have tried repositioning the sensor without any luck and there is no adjustments for sensitivity.
You can often find modelnumbers here @ blakadder
Like this one “looks” like it.
That’s also the problem with Tuya zigbee devices: You never know which internal model/type you’ll receive when you buy one…
This site shows this model _TZE204_ijxvkhd0
But, it is not to determine if that’s your model from Amazon…
You’ll know after you bought it and paired with Homey…
You can search for this model in Johan Bendz github request issues, but in fact it’s pointless before you buy and determined the exact model…
(This link can be found at the bottom of the app store app page)
A note about a possible disadvantage of zigbee mmWave sensors:
is this for the 2.4 or the 5.8 version? seem to operate at different frequencies.
the sensitivity depends on the “depth” you configure, if a ceiling model hangs on 2meters and you configure 5meters as “range” then you can sense the birds on your roof (reflection).
the sensitivity had someone determined to 20% as optimal.
Not really.
But not impossible.
I it can be done using Macrodroid.
(I don’t own iFruit devices, so I can’t tell if a similar workaround is possible).
It can read notifications, when the Tuya Smart app sends a notification from the sensor, Macrodroid identifies it according to a matching phrase, and the you can have Macrodroid send a webhook to Homey, and start the listener flow.
I’ve done exactly this, with unsupported PIR sensors, before the Raw commands were introduced.
If you like, I can write a howto with screenshots and such. Just give me a shout.
Please provide for a little more info or links in the future, can’t read your mind
But, OK, after a while, I discovered what you were talking about, looking at the “uncle Ali” sensor I linked to.
Oh, and 2.4GHz is reserved for wifi / zigbee and Bluetooth, you probably meant 24GHz
To find your answer, you just could have scrolled down to the product description :
When it’s faced downwards, it should not be possible it detect birds, but it would probably detect moles under your house, depending on the type of flooring.
From the same product page:
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Or do you mean the signal bounces from the floor upwards when the range is higher than the actual distance?
Never tested, and I’ve 5 mmWave 24GHz sensors running here, I don’t think the signal bounces, while it detects through glass, wood and brick walls here.
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That’s rubbish in my humble opinion. It depends on the sensor, the surroundings (it detects water), type of walls flooring & ceiling.
Every sensor has to be adjusted with care and much patience, to get the right balance between detection and false positives.
Yes that’s what I meant. Reflections and also interference from other sensors sending to “eachother” (directly or indirectly) can generate false triggers.
Oh, and 2.4GHz is reserved for wifi / zigbee and Bluetooth, you probably meant 24 GHz
Thank you for explaining. I thought the seller did forget a ‘dot’ in the 24G notation. Chinese translations are not often that clear. I also think that most aliexpress sellers don’t really understand what they sell either. But in this, my error
That’s rubbish in my humble opinion. It depends on the sensor, the surroundings (it detects water), type of walls flooring & ceiling.
Every sensor has to be adjusted with care and much patience, to get the right balance between detection and false positives.
That’s so true, but in my experience 20% is a good starting point, that was my point. Of course there are a several surrounding variables.
Unfortunately the FP2 is a royal pain in the *** to integrate properly within Homey at this time, it’s something we are looking into but I personally think we will have to wait until Matter support drops before it can be integrated the right way. Aqara already announced it working with SmartThings, but that’s also based on Matter support.
That’s very true and is a nice workaround! It’s just that we need Aqara’s blessing and local API access if we want to have it be officially integrated at this moment.
(the roll holder is fixed to the other side of the shared wall). I have tried repositioning the sensor without any luck and there is no adjustments for sensitivity.
