I would like to experiment with the potential of the various protocols (ZigBee, Z-Wave, Thread), implementing them on a Raspberry Pi 3B+ on which openHAB 2.1 is installed.
Because of the known problems concerning frequency and compatibility, I appeal to the most experienced to understand how to set up my Raspberry according to the European standard.
ZigBee and OpenThread should both work on the IEEE 802.15.4 network on the 2.4GHz frequency, so I thought that a single USB stick could cover both (even if I did not find OpenThread bindings on the doc, should I use TCP & UDP Binding?). Therefore, reading this docs: ZigBee - Bindings, I think I will buy Telegesis ETRX357USB. Should I consider other drives? (I prefer to avoid CC2531 USB because are cheaper but more problematic.)
As for the Z-Wave protocol, that he too uses IEEE 802.15.4 network but works on the 868.4 MHz frequency (in Europe), I thought I would buy the Z-Stick Aeotec. I noticed that in the community has excellent reviews. Which alternatives can be valid (in Europe)?
I am aware that there are devices that include the two protocols, such as HUSBZB, but I have noticed that they are always problematic. I would like to build a solid project, so I would like to find the best setup on which to experiment.
Any inspiration, guidance, experience will be appreciated!