I have been writing a zigbee driver for Hive and got the basics working but there are some weird quirks I'm struggling to debug. I have made a request for hive to release their spec but they have refused. I have now made a request under the data protection act to extract my data from the device to see what response this yields.
Here is a bit of a thread on what I have been doing with zigbee. If people want to pile on with Hive lease head over to their community and given them some grief about not opening up their spec.