Light Sensor GZCGQ01LM

Just got 2 Xiaomi Mijia Smart Light Sensor GZCGQ01LM from Walmart
Both paired with HE successfully but both not reporting anything at all.

I know, these toys are not officially supported but I decided to try them.
I found at least 3 different drivers for these sensors and tried all of them.
But unfortunately my new light sensors did not like any of these drivers.
Logs was showing only my attempts to change something on the device page(s)
but no real sensor(s) activity was recorded.
For instance, here is a Current State from the device page for the @markus driver:

It could be these sensors came with new firmware which made them
incompatible on purpose with anything else except for the Aqara hub.
But it could be I am missing whatever step(s) in order to get them working.
Any ideas what should I try?

Markus's drivers are no longer support.
Have a try with this one.

EDIT: It is available via HPM BTW.

It's not the driver; these Xiaomi Mijia devices have some screwy Zigbee that causes them to stop communicating on the mesh. There are lots of threads on making them work reliably. E.g.,

Basically, the key to making them reliable is to get some compatible Zigbee repeaters; these devices will talk to those repeaters and not have a problem. The Ikea ones work great. E.g., these (for the US):

I have 4 of those repeaters around the house and 4 of these exact same Light Sensors (as well as a bunch of other Mijia/Aqara devices) and the sensors are all 100% reliable.

As for driver, I still apparently use Markus's driver on 2 of them, but I've switch 2 to @chirpy's driver here. I should probably switch the other 2 over (since Markus's driver is no longer being updated).

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This driver was my choice N1.
It did not work.
Here is a status:

So, I found two more and tried them without any luck.

Thank you for the info on this Zigbee-Xiaomi compatibility.
As of today my Zigbee Mesh is rock solid (I think).
Most of my Zigbee repeaters are power reporting Singled Plugin Outlets
plus few more non power reporting plugin modules.

If these Xiaomi Light Sensors so sensitive to the Zigbee Mesh and they
are not officially supported I guess, I should retire them right away.

FYI, if you mean Sengled, be aware that their outlets do not repeat.

Yes, I meant Sengled.
According to the description they suppose to be a repeaters.
But looks like you are correct and they are not repeating.
Here is my Zigbee status info:

Parent child parameters
EzspGetParentChildParametersResponse [childCount=0, parentEui64=0000000000000000, parentNodeId=65535]

Child Data

Neighbor Table Entry
[Bathroom Dimmer Main Light, 2885], LQI:255, age:3, inCost:1, outCost:1
[Kitchen Kettle Switch, 3564], LQI:254, age:4, inCost:1, outCost:1
[Kitchen Microwave Switch, 373E], LQI:254, age:4, inCost:1, outCost:1
[Closet-3 Light-2, 4298], LQI:254, age:3, inCost:1, outCost:1
[Kitchen Washer Switch, 70F6], LQI:220, age:4, inCost:5, outCost:3
[Kitchen Toaster Switch, 7689], LQI:245, age:3, inCost:5, outCost:1
[LR Camera Switch, 7CC5], LQI:254, age:3, inCost:1, outCost:3
[Closet-4 Light, 94BD], LQI:255, age:4, inCost:1, outCost:1
[Bathroom Toilet Bidet Switch, 9734], LQI:244, age:7, inCost:5, outCost:0
[Bd Shell Light Switch, AB38], LQI:254, age:5, inCost:1, outCost:3
[Kitchen Cabinets RGBW Light, C4D1], LQI:245, age:4, inCost:5, outCost:7
[Kitchen Coffee Maker Switch , C6CB], LQI:254, age:3, inCost:1, outCost:1
[Lr Air Filter Switch, E580], LQI:255, age:4, inCost:1, outCost:1
[Bd Air Filter Switch, EC65], LQI:255, age:3, inCost:1, outCost:1

Route Table Entry
status:Active, age:32, routeRecordState:2, concentratorType:Low Ram, [Bathroom Dimmer Main Light, 2885] via [Bathroom Dimmer Main Light, 2885]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Kitchen MS, D6D3] via [Closet-4 Light, 94BD]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Bathroom Tub MS, D344] via [Closet-4 Light, 94BD]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Lr Computer Desk Button, 3143] via [Closet-4 Light, 94BD]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Kitchen Sink Water Sensor, 2BBC] via [Closet-4 Light, 94BD]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Bathroom Shutoff Water Sensor, DB16] via [Closet-4 Light, 94BD]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Closet-2 MS, 26CD] via [Closet-4 Light, 94BD]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Bd Balcony Door Sensor, FFAD] via [Closet-4 Light, 94BD]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Closet-1 MS, C1AE] via [Closet-4 Light, 94BD]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Bd Button - Vitaliy, AA24] via [Closet-4 Light, 94BD]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Closet-4 Door Sensor, DB62] via [Closet-4 Light, 94BD]

It looks like only Zigbee repeater I have is a Closet-4 switch.
My Zigbee Mesh seems to be very stable "as is".
Should I add few Zigbee repeaters anyway?
Should I use this one: "TRÅDFRI Wireless control outlet".
It does not report power but I have few places where I don't
need power reporting.

When I contacted them a long time ago, Sengled's support said that they are not zigbee routers (i.e. repeaters). Has that changed recently?

I would recommend it. There are many choices ....

I checked my Zigbee Mesh one more time and now I am very confused.
My Kitchen Microwave Switch is this Sengled Power Monitoring plugin module:


According what I learned few minutes ago it is not a router/repeater.

However it is a repeater at least for two devices:

status:Active, age:64, routeRecordState:0, concentratorType:None, [Kitchen Cabinets RGBW Light, C4D1] via [Kitchen Microwave Switch, 373E]

status:Active, age:64, routeRecordState:0, concentratorType:None, [Lr Computer Desk Button, 3143] via [Kitchen Microwave Switch, 373E]

So, what is a truth?
Is it a repeater or not?

I have 5 of these toys.

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The smart plugs I referred you were Sengled’s ZHA1.2 models. Those definitely did not work as repeaters (confirmed by Sengled tech support).

However, Sengled’s plugs are now zigbee 3.0 models, and your data clearly indicates that they do repeat.

Thank you for the clarification.
So, I do have enough Zigbee repeaters on my Zigbee mesh.

Now I am back to my original message.
No matter what I was trying to do with my 2 new toys
(GZCGQ01LM Light Sensors), they are not responding.
Resetting and re-pairing is not a problem.
I tried 3 different drivers.
It looks like my Zigbee mesh has enough repeaters (hopefully reliable).
But unfortunately I cannot get any data from these sensors.

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Okay. I used to have several of these sensors on Hubitat. They worked very well, and there's no reason why they should not work with @chirpy's driver. There is a trick to getting them to work:

  1. Pair them very very close to your Hubitat. Within 6 inches.
  2. Even after successful pairing, leave them there for a few minutes.
  3. Change the ambient light and see if there is a reported lux value. If there isn't, reset and go back to step 1.
  4. Once they have passed step 3, then place them in their final location. They will remain paired and work well.

Went through the suggested steps 3-4 times.
Still no luck.
Everything what is device page reported is this:
And absolutely nothing in a logs.

I already have few working muti sensors with light reporting.
These simply will be much better fit and look plus I can better utilize multi sensors.
But unfortunately new toys are not working.
I am ready to give up on them.

Did you read the post I linked to above ("Xiaomi & Aqara Devices - Pairing & Keeping them connected")? You've not said you have any Zigbee repeaters on the "known to work with Mijia/Aqara devices" list. That means you will probably continue to have problems with these devices.

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I did read everything what I was able to find and of course, yours post.
As of today I have very solid (I think) Zigbee and Zwave meshes.
And I already have Light Sensors from number of multi sensors.
These dedicated Xiaomi Light Sensors are nice looking and could be
used in a few places where I need only Light Sensor.
However they happens to be very problematic.
I don't want to go with massive changes on my otherwise stable
network just to make this two happy.

So, they are resting in my "not compatible devices" box with few
more not really compatible toys.

If somebody wants all these toys I can give them away for free.
But I will not be shiping things. Just come in and grab them.

Finally I can claim a victory.
Installed 100% fresh batteries.
Performed 100+ inclusion/delete processes for each sensor.
Sensor(s) must be really close to the hub during pairing.
And finally both are paired and reported battery and Illuminace status.
Now let me see how stable they are on a mesh before I will add them
to the rules.

You were forewarned!


Yes, and BIG thank you for this advice.
In addition battery must be very fresh.
And it takes gazillion of attempts to get them responded.
Surprisingly pairing is not a problem at all and could be
done from any reasonable distance from a hub.
But getting these sensors to report a luminance is a BIG challenge,
I need two more of these toys but I am not sure I want to go again
through this pairing hel.

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Download the Hubitat app