Only a quick update today, further testing of zig-a-zig-ah, trying pairing devices.

Xiaomi WXKG11LM

This is a battery operation single button sensor. Pairing was super easy and quick, usual process of holding the reset button. Pairing distance of about 3m with the zig-a-zig-ah behind a closed wooden door.

I tested with a second identical device, but connected to ZOE, and found it to show a link quality of about 65, compared with closer to 90 under zig-a-zig-ah. Both coordinators are in the same cupboard.

Xiaomi QBKG12LM

This is a dual light switch with neutral support, this device appears as a router. Once again pairing worked first time (well second but first time was user error). This device is further away from the coordinator and upstairs.

With my old coordinator I was seeing link quality of about 100-110, however I had more routers installed in this configuration so I don’t think this is a fair comparison.

Link Quality?

I am seeing comparable signal quality to my old coordinator (zoe), however this may be just because of the difference in antenna positioning and routers added to the network. It should also be noted that Zoe has a range extender which zig-a-zig-ah does not, so it is not apples-for-apples comparison, however these results are better than I expected and both zoe and zig-a-zi-ah have better link quality than the cheap CC2531 board I started with.