The Aqara TVOC Air Quality Monitor pairs relatively easily with the C-8 hub but is rather difficult to be paired with C-7 and probably with the other older generation HE hubs.
An indication of a successful pairing is that the battery level rectangular symbol on the top right of the E-ink screen will be shown. If the pairing is unsuccessful, the device will reboot (the E-ink display will blink several times), and the battery level symbol will disappear.
Not at the moment, but I have found some information on how to switch the C/F temperature scale on the device display , so I will try it in the next few days. Also, the temperature float value is not rounded properly in the logs and in the event description, will be fixed in the next update.
This Aqara sensor dropped off the Zigbee network a few hours ago, now I have paired it via a repeating/routing plug. Hope will stick there and will keep connected.
As most of the Aqara devices, this one may not pair successfully from the first try. Pair it again (without deleting it before), close to a mains-powered repeater.
The airQuaiityIndex will need several minutes, before it starts to be automatically reported. But the temperature and the humidity must be updated quickly.
What is your hub? Do you see anything in the live logs when you press the button on the top of the sensor?
Good!
I am still trying to understand why are these differences in the pairing success depending on whether the device was paired already to the hub, or is pairing as a new device.
you're right. Aqara products are weird when pairing. Sometimes I have to erase the device and reconnect, and sometimes I have to re-pair while holding the device.
I can't pair it again to my C-7 hub at the moment ... : ( Pairs to C-8 without a problem.
I have updated the first post to include a note about C-7 pairing issue.
The driver also has a newer version 2.0.2 where the battery voltage and the battery percentage remaining (calculated) are now processed.
version 2.0.2 timestamp "2023/05/29 11:58 PM" adds configuration of the temperature scale and the air quality unit ('mg/m³', 'ppb') as displayed on the screen :
The button on the top of the sensor must be pressed at the same time when clicking on the 'Save Preferences' button (same as changing the parameters of the Aqara P1 motion sensor).
