Zigbee - from flakey to stable

[veeceeoh (Keith G)]

@zimguy

I have 45 ZigBee devices and my network looks like this:

Very interesting that a majority of end devices (31) are connected directly to your ST hub. It definitely confirms that the 32 device limit is still just for end devices, and not for routers (repeaters), as was stated here:

FAQ: 32 Zigbee direct connection device limit?

The HubV2 currently only supports 32 directly connected end devices. If you were to first connect 32 end devices (for example the sengled bulbs) you wouldn’t be able to connect a 33rd device until you join a router to the network. However the routers don’t count against the 32 end device limit and you can add as many routers as you want/need. Each router will support a limited number of end devices and that number will vary by model. We tried to bump the end device limit to 64 in the 0.18 hub firmware release but there was an unrelated regression in the Zigbee firmware and so we had to revert back to the Zigbee firmware that has the 32 device limit. We would like to increase that limit in the future but unfortunately I can’t say right now when that might happen.

So I stand corrected on my previous statement that routers count towards the limit, a few posts up. I could have sworn I read that somewhere here on the forums, but it turns out I was wrong!

Also interesting is that of the other end devices, only 2 of them are “claimed” by a single router. The other 6 are showing a connection via multiple routers. I don’t know enough about the deep ins and outs of Zigbee to know whether that’s normal.

@zimguy

One of my xBees is a Digi usb x-stick

Hopefully those work just as well with Xiaomi and other devices as the developer modules!