Hello together,
as an absolute beginner in things with Zigbee I have once a question.
I can not get the ZigBee signal to my garage. For this reason I bought 2 LAN/POE coordinators (Silabs EFR32MG21).
I want to set up a network (ZigBee) in the garage and a ZigBee network in the house.
I already have one coordinator (garage) in operation, how do I get the second coordinator integrated under ZigBee2MQTT?
Thanks in advance
Andreas
I realize that they will be separate ZigBee networks!
You’d need to run a separate copy of Z2M for the garage. They have an FAQ entry about it, but if you’re using HAOS you’ll either need to run the standard and Edge (dev version) of the add-on, or run the second instance on another computer.
thanks for the quick info.
Then I will probably do it differently.
I will then change my 2652 coordinator in the house from ZHA to ZigBee2MQTT (this supports the Aqara switches better) and will operate in the garage the Lan Coordinator EFR32MG21 with ZHA (in the garage there are only temperature sensors and a socket).
Or is there something against it?
Thanks in advance
Running both zha/z2m should be fine. Many of us do so.
But, don’t be too worried about edge being the develop branch if you prefer z2m.
Unfortunately, something is not working.
I have connected the cc2652 with ZHA and paired all ZigBee devices in the house. Works !
But as soon as I include the LAN EFR32MG21 (garage) in Z2M, it recognizes the devices already paired in ZHA and wants to pair them as well. I have tried the whole thing the other way around, same success. If I set the switch under Z2M for the recognized devices to “NotPaired”, I can also no longer use them in ZHA.
Somehow I did something wrong, actually the two systems should not “see” each other.
Does anyone have a tip for a newbie where I have to look?
I have first of all the house again with ZHA and the cc2652 configured (without Z2M).
Thanks in advance
Was ZHA “migrated” between sticks at any point? It’s possible both sticks have been set to the same ieee address during the ZHA migration process.
Check ieee address in z2m GUI at Settings->About. In ZHA the ieee is displayed under the coordinator device’s “Device Info” section.
Thanks,
I think it was…
I will test it after I solve my little problem with the ZigBee router in ZHA 
(step by step)
Andreas
If so, hopefully it was from CC2652 to EFR32MG21. The address on the SI Labs chips can only be changed once. There is no going back to the original ieee address.
For reference, my Sonoff 2652 dongle address starts as 0x00124bxxxxxxxxxx (00:12:4b:xx:xx:xx:xx:xx), my Sonoff EFR32MG21 dongle starts as 0xe0798dxxxxxxxxxx (e0:79:8d:xx:xx:xx:xx:xx).
If they both have an SI Labs address, then re-flash the TI stick to reset it’s address back to TI default.
If they both have a TI address, the solution would also be to re-flash the TI stick, but you will need to manually change the ieee address so that it won’t conflict. cc2538-bsl has an option, but I’ve never used it.
Then I make sure you start from scratch with whichever integration is using the TI stick. If z2m, delete coordinator_backup.json before reconnecting. If ZHA, delete and re-add the integration, don’t let it restore anything when adding the stick back.
Oops, I misunderstood.
I have not “migrated” anything, but only swapped the coordinators in the software. That is, I have tested with the Sonoff once ZHA and once Z2M, so it should not be a problem.
I will probably test/swap again this weekend to see what I end up installing at what location
House = ZHA / Z2M with cc2652 Sonoff/Tube’s or Sonoff EFR32.
Garage = ZHA/Z2M or Z2M Dev with Tube’s EFR32 Lan
So many possibilities 
At the weekend I will experiment a little more…
Quick question from a beginner… is the ZigBee radio performance of the EFR32 chip (standard 20db) noticeably (not only on paper) higher than that of the 2652 (standard 5db)? As a beginner I don’t want to start flashing other firmware right away…
I have a Tube’s Lan Coordinator with EFR32 chip in the garage, because I have to connect it directly via Lan and I think it has a better range than the 2652.
I am now considering to implement everything in the house as well as in the garage uniformly with EFR32. I know that the 2652 is more stable than the EFR32, but both in ZHA and Z2M, for example, the Sonoff EFR 32 is displayed as “Supported” not “Experimental”.
Besides, I would then have only one ZigBee type and would have to deal only with it.
In the house I will probably switch to Z2M, in the garage either Z2M Edge or ZHA - then everywhere with the EFR32.
I have also ordered the SkyConnector, this would then also EFR32…
I’m assuming you want the garage and house networks totally separate. In that case you should be able to just change the zigbee channel for one and they won’t interfere with eachother.
Not really. It can help, but it has much less impact than the numbers imply.
Remember the +20 is only how loud the coordinator is transmitting. It does nothing to increase the range of the end devices. The increased tx power can cause end devices to prefer a coordinator connection when they might be better off connecting to a closer, less powerful router. A good external antenna at the coordinator can make it more sensitive at hearing those less loud devices.
I’ve found the +9db default of koenkk’s zstack firmware a reasonable compromise.
If you go z2m, stick with TI. For a handful of devices in the garage ezsp should be fine, but as mentioned elsewhere ezsp support is still a work in progress.
Anecdotally, even under ZHA, I find things like pairing to be easier with my Dongle-P (zstack) than my Dongle-E (ezsp). But I only have the one ezsp stick, so can’t really quantify if it is a sonoff issue or ezsp issue.