#SwitchBot Matter device not reporting values

1 messages · Page 1 of 1 (latest)

wet quest
#

I have a new SwitchBot Meter Pro CO2 Monitor. I connected it to Matter, but it is only displaying Temperature and Humidity. Is Home Assistant at fault, or is SwitchBot not sending the values?

image.png
dry tusk
#

That device literally came out 2 days ago 🙂
Can you go to the device page in HA settings for this device and then download the diagnostics filer and share it here ?

wet quest
#

yeah i would love to figure out how to make it work with bluetooth, or i at least thought it would show up in matter

#

i just dont know enough about how to start to discover via bluetooth and help them add to the integration

wet quest
#

what are you looking for exactly?

rocky lynx
#

that data includes a dump of all the matter 'clusters' on the device, which should make it possible to see what features the device is exposing, and how.

#

ok, so that's the switchbot hub 2, exposing a bridged device. Unfortunately, the only clusters it's providing are the humidity and temperature sensors which home assistant is already displaying. they aren't providing anything else.

#

you're probably going to have to wait for updates to the hub firmware to get any more info over matter

wet quest
#

would you be able to tell me what LINE in that file you are looking at, so as I may learn what you are looking

rocky lynx
#

Not a specific line - I'm referencing various places in the data structure to the matter specifications.

wet quest
#

oh. i was hoping there would be something I could easily spot to tell what its doing

rocky lynx
#

to summarize what i did - starting on line 180, under "attributes", there is a dump of all of the endpoints, clusters, and attributes reported by the matter device. For each endpoint, I looked at the descriptor cluster (29) device type list attribute (0) to get the list of device types which that endpoint claims to implement. I cross-referenced the numeric values there against the list of standardized device types from the matter specification. the only things i found were the "root" endpoint for the bridge itself, the endpoint for the humidity sensor, the endpoint for the temperature sensor, and a couple of auxiliary endpoints used to provide information about how the bridged devices are arranged.

wet quest
#

that sounds pretty complicated

#

theres no support yet in bluetooth for these or i would use that...and i dont know how to go about viewing the bluetooth data to see how i could help with that.

rocky lynx
wet quest
dry tusk
dry tusk
wet quest
pulsar geode
#

What are you expecting to see using the Matter connection? Air quality is a fairly new part of the Matter standard and it's unclear whether CO will fall into that category.

wet quest
#

i was expecting all sensors to show up

rocky lynx
#

fwiw, the Matter 1.3 specification for an "Air Quality Sensor" does support a whole variety of measurements including temperature, humidity, CO, CO₂, particulates, and a few other things. That version of the spec was published earlier this year.

#

so it should be possible for Switchbot to expose all the features of the Meter Pro CO2 as a matter air quality sensor.

pulsar geode
#

So this is the switchbot "roadmap" for Matter and they don't give any indication this is coming.

pulsar geode
# wet quest i was expecting all sensors to show up

The product listing on their website does not mention Matter even once, so I'm not sure why you would be expecting that. Seems to me the fact that temp and humidity are exposed, in spite of not being advertised to do so, is kind of a bonus.

wet quest
#

I'd figure it would be exposed since their hub2 which is the matter bridge exposes it (temp / hum)

#

I'll just have to wait until someone adds the devices via bluetooth

dry tusk
#

Got an answer from SwitchBot. The Hub is still at matter 1.1, which is not compatible with the Air Quality clusters. There may be an update to 1.2 or 1.3 later but that is not set in stone. Could be that there is a newer revision of the hub needed to do that upgrade.

#

I'll give them a tip that they should probably disable adding the sensor to the matter bindings

rocky lynx
#

It doesn't make sense to disable adding the sensor - the temperature and humidity clusters on it appear to be working fine?

dry tusk
pulsar geode
#

Switchbot needs to step up their game. I was initially pleased with their approach as they brought Matter to basically all their devices early on, rather than forcing people to buy newer versions to get Matter support.
But now they need to adapt to keep up as others are passing them by.
They need to release a true hub with ethernet, no silly limit of 8 devices exposed, and support for Matter 1.3. It needs to expose a fan as a fan and a vacuum as a vacuum (ok fine, wait on this one for more platforms to be handle vacs). Not just have all those show up as switches.

#

/end rant

wet quest
#

i got a similar reply

#

fortunately, i was able to provide the necessary data on github to get CO2 added via bluetooth

#

The data for the pro meter co2 looks like b'\xb0\xe9\xfeT2\x15#\xe4\t\x99\xa5\x00#\x04f '

after i was made aware that it could be converted, i tested a few samples and was able to convert it from bytes in big_endian to an int

dry tusk
pulsar geode
wet quest
dry tusk
wet quest
#

thats nice. its too bad these companies cant see all the work users put in to make stuff work, and then just take over and help out since people clearly use it

wet quest
dry tusk
wet quest
dry tusk
wet quest
dry tusk
rocky lynx
#

it did get a head start by re-using a lot of stuff from zigbee, tho :)