I’m building my smart home based on the ZHA integration - so far the results are impressive and I managed to bind together both the cheap Aqara stuff thanks to the ZHA quirks (cube, wireless switches, temperature sensors) and the standard-compliant things like Osram bulbs or Aqara smart plugs (surprisingly that thing doesn’t require the quirk, good job Xiaomi). Now when it’s more or less settled that I’ll go with Zigbee, I’m looking forward to finally invest in the light switches, dimmers and the roller shutters, as they are the device types that requires the most interference in the actual house - due to fact I want them to act as the routers and extend the range of my Zigbee mesh network, I already know that I’ll have to spend some time pulling the N wires to my wall switches.
The problem is that I’m looking for a standard-compliant solution that would work with raw ZHA and Digi Xbee WRL-15128 S2C module, without Zigbee2MQTT which seems to support more devices. Since I want to get the standard doorbell-like monostable buttons for it so that they fit the interior, I’m looking for a module I could put behind the switch and wire all the cables to it. The Ubisys seems to be the the leader when it comes to such solutions for the switches, dimmers and shutter controls - their devices are fully compliant, support OTA updates and certified by the Zigbee Alliance. The problem is their price - €100 for a single wall switch is the cheapest thing they have and it beats even the Fibaro products I already considered expensive and which was one of my reasons I went with Zigbee instead of Z-Wave.
There are some Tuya in-wall switches and dimmers available on the market (ignore the Polish description, you can see the parameters in the pictures on the devices themselves):
They are reasonably priced - 60 PLN is €14, I could get bunch of those for a price of one €100 Ubisys switch! What’s more, they seem to be quite well thought out - not only they can have the button attached but also pressing the button multiple times resets the module and allows for reconnecting with the network, without necessity of burrowing into the wall in order to press that tiny reset button on the module itself. They mention to use Zigbee 3.0 - however, is the sole mention of Zigbee 3.0 the guarantee of standard compliance? The fact that some devices like Aqara mini switch are mentioned on the Zigbee Alliance page and still have a ZHA quirk implemented makes me doubt that - not to mention that I can’t find those Tuya devices on the Alliance page at all. However, I have the Tuya-branded temperature sensor which identifies itself as RH3052 and works flawlessly with ZHA, without any custom quirks.
Did anybody try those switches with the ZHA and could confirm if they work or not? Also, could somebody recommend the similar in-wall device for controlling the shutters which is priced more reasonably than the €150 shutter controller from Ubisys?