Is It possibile ti install a second zigbee2mqtt hub?

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1

Hello,
Last year I switched my entire ZigBee network (around 60 devices) from deconz to zigbee2mqtt.
Since I live in an apartment at the third floor I decided to recycle the deconz stick to create a second network on the garage at the underground floor and pair few devices less than 10 (I was able to bring my internet network there).

Since it’s impossible to extend my zigbee network from the third floor to the underground floor I can only create a second network like I did…
Unfortunately the deconz network presents all the issues that made me switch to zigbee2mqtt (like compatibility and routing issues) and I’m experiencing that even with few devices.

At the moment I’ve installed deconz on a raspberry 3, connected my conbee 2 and set it in the garage.
On my main raspberry 4 with home assistant that is on the apartment at the 3rd floor I installed the deconz integration.
Is it possible to install zigbee2mqtt on my raspberry 3 and join it on the mqtt integration?

I’d like to try to use the conbee 2 under zigbee2mqtt to see if it’s enough and if necessary to switch to the sonoff stick like I did on my main network

Thank you in advance

2

Either follow the Linux installation, or the docker installation. Important is to choose another MQTT topic,

3

Maybe installing Dev/Beta branch as a separate docker might work too (with a risk of less tested code)

4

Also possible to run two z2m instances on HAOS using one release addon instance and one edge addon instance.

The remote Pi would then just run ser2net to expose the dongle over the net.

Only real advantage would be keeping all data on the HA instance for backup purposes.

If you run z2m on the remote pi, you can still do most management in HA via the z2m proxy addon.

5

Regarding the MQTT topic it will be auto discovered anyway if I use the same settings I have on my main network, right?

6

It is important to have a different MQTT topic for each Z2M instance, or you will have problems, as each instance will try to process all message, even for devices that are not joined with that instance.

7

I ended buying a second SONOFF dongle (this time the E model), updated the NCP fw (I’m not interested in the RCP for a small garage with few devices) and installed zigbee2mqtt on the pi3 following the linux install (and changing the mqtt default topic). Everything seems to wok perfectly now!!

I decided to not use the Conbee II since I’ve read that even with zigee2mqtt is giving some issues and latency…

Thank you