I am considering to connect an USB Zigbee stick to my Raspberry Pi with OpenHAB. Based on the documentation of the Zigbee binding, I think I should go for a stick with an Ember coordinator, since that seems to be the only one with Zigbee v3 support.
However, the description explicitly mentions that it is “zigbee v2”. Does anyone have experience with this device? Is it v2 or v3 compatible? Is it possible to upgrade the firmware to get v3 compatibility? Any information from someone with hands on experience with this “funkstick” would be highly appreciated!