Querstion about moving from another controller to OpenHAB - must all Zwave devices be re-paired?

Setup, Configuration and Use Beginners
1

I am today using HomeSeer with a UZB zwave.me USB stick and is considering to migrate to openHAB.
However I have a large number of ZWAVE devices paired with this USB stick (some built into walls switches around the house etc.) so re-pairing everything would be a quite substantial work.
Is there any way to use this stick with OpenHAB WITHOUT having to de-pair all the Z-wave devices (I am fine with re-doing the automation as the better possibilities provided by OpenHAB is one of the main reasons for migrating) or is this required?

2

Assuming your USB stick is supported by the Z-Wave Binding:
No need to re-pair your devices (battery operated device will take some time to get fully discovered or must be forced to wake up), but one thing to note:
If your devices aren’t in the OpenSmartHouse Z-Wave Device Database, they will be in the state “unknown device” and won’t be operational until someone (you? :slight_smile: ) adds them to the database. You then would need to install the latest Z-Wave Binding snapshot. But AFAIK, snapshots are available for openHAB 4.x only.

Summary:
If some of your devices are not in the database, you might consider the latest milestone release (openHAB 4), otherwise use the latest stable release (openHAB 3.4.2).

3

What you need to have at least though, IMHO, is the “Network Security Key”, as far as I remember.

1 Like
4

That is indeed good news - I do not expect any of my devices to be unsupported as they are all of the main brands (Qubino & Fibaro) and I have no battery operated devices but I will double check the specifics to be sure

I have actually already tested the compatibility of the Z-wave stick (I had an identical spare that I have not needed to use so far) and tried including and do automation with a Z-wave device with expected result in openHAB.
Assuming stick and Z-wave devices are compatible what will I need to do in openHAB - just scan the Z-wave binding for the stick again or is something more advanced required to be able to create things and start automating?

5

Hmmm what is the “Network Security Key” (not so much into the internals of Z-wave just a naive user) and how do I get hold of it?

6

You would have to extract it from your current installation and to transfer it to the Z-Wave controller in openHAB (enter it into the ‘Network Security Key’ field of the Z-Wave controller Thing - field is hidden behind ‘Advanced’ checkbox IIRC).