EvoHome Binding broken?

mri_ice · February 25, 2026, 9:25pm

The EvoHome binding seems to have stopped working this morning - unable to authenticate.

Debug logs seem quite obvious:

Error in handling request:

java.util.concurrent.ExecutionException: java.net.UnknownHostException: tccna.honeywell.com: No address associated with hostname

Presumably, tccna.honeywell.com has finally been decommissioned and fully replaced by tccna.resideo.com.

I think I’ve seen that the previous maintainer is no longer involved ( Evohome binding 2.0 - #282 by jvanzuijlen )

I have no experience with binding creation but I’d be happy to give it binding a go and see whether it’s just the hostname that needs changing, but what do I use as a starting point for development? How do I get to see the source of the existing binding?

Martin

mri_ice · February 25, 2026, 10:45pm

I’ve put my big boy pants on and given it a go - set up Maven, battled the wrong version of Java for a while and updated the binding.

Luckily it seems to have been as simple as updating:

public static final String URL_V2_AUTH = "https://tccna.honeywell.com/Auth/OAuth/Token";

public static final String URL_V2_BASE = "https://tccna.honeywell.com/WebAPI/emea/api/v1/";

to https://tccna.resideo.com in both lines within EvohomeApiConstants.java

Happy to share the updated JAR file if anybody runs into the same issue!

pascal · February 26, 2026, 8:01am

Hello Martin.
Could you please share the JAR file?
I’m facing the same issue.

mri_ice · February 26, 2026, 8:55am

Yep, here is it (OpenHAB 5)

Link to JAR

Delete the official binding from add-ons, then drop the jar into your add-ons folder (/usr/share/openhab/addonsfor me on Ubuntu)

Seems to work OK here, hope it’s the same for you.

pascal · February 26, 2026, 9:57am

Works perfectly! Thanks!

JosefLe · February 26, 2026, 1:21pm

Hi Martin, downloaded your file, removed evohome-binding from addons and put your .jar file into the addons folder, but the binding is not started. Log says:

2026-02-26 14:02:15.205 [WARN ] [org.apache.felix.fileinstall        ] - Error while starting bundle: file:/usr/share/openhab/addons/org.openhab.binding.evohome-5.2.0-SNAPSHOT.jar

org.osgi.framework.BundleException: Could not resolve module: org.openhab.binding.evohome [371]

  Unresolved requirement: Import-Package: com.google.gson; version="[2.13.0,3.0.0)"

What is to be done?

Regards Josef

mri_ice · February 26, 2026, 1:31pm

What’s your OpenHAB version?

JosefLe · February 26, 2026, 1:41pm

It’s 4.3.10 release build.

mri_ice · February 26, 2026, 1:49pm

Yeah, the binding I posted is for OpenHAB 5, presumably that is the reason it won’t start. I can try and build one for OpenHAB 4 tonight.

JosefLe · February 26, 2026, 2:36pm

Thanks a lot, would be very kind if you could create an OpenHAB 4 Binding.

I’m planning to migrate to OH5, but need a new machine fist, since my Raspberry Pi 3B will not do it. So I still have to rely on OH4 for a while …

In between I have figured out, how to use openhab console and there its’s clearly to be seen in bundle:list that the versions don’t match (what should have been clear when reading the filename of your .jar with open eyes before ).

JosefLe · February 26, 2026, 2:40pm

Well and if someone updates the binding in the release build: wouldn’t it be preferable to specify the Evohome-website within the thing definition?

mri_ice · February 26, 2026, 9:19pm

OK, let’s try again.

OpenHAB 5 binding
OpenHAB 4 binding

First time doing this, hoping I’ve followed the right steps to make it work with OpenHAB 4.

edit this is now confirmed working for both OpenHAB 4 and 5.

I’ve also submitted a PR that has been accepted, which means that this should be fixed in the official store binding with the next release.

JosefLe · February 26, 2026, 9:44pm

Unfortunately doesn’t work. Still get the error:

2026-02-26 22:38:57.949 [WARN ] [org.apache.felix.fileinstall        ] - Error while starting bundle: file:/usr/share/openhab/addons/org.openhab.binding.evohome-4.3.0-SNAPSHOT.jar

org.osgi.framework.BundleException: Could not resolve module: org.openhab.binding.evohome [376]

  Unresolved requirement: Import-Package: com.google.gson; version="[2.13.0,3.0.0)"

	at org.eclipse.osgi.container.Module.start(Module.java:463) ~[org.eclipse.osgi-3.18.0.jar:?]

	at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:445) ~[org.eclipse.osgi-3.18.0.jar:?]

	at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundle(DirectoryWatcher.java:1260) [bundleFile:3.7.4]

	at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundles(DirectoryWatcher.java:1233) [bundleFile:3.7.4]

	at org.apache.felix.fileinstall.internal.DirectoryWatcher.startAllBundles(DirectoryWatcher.java:1221) [bundleFile:3.7.4]

	at org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:515) [bundleFile:3.7.4]

	at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:365) [bundleFile:3.7.4]

	at org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:316) [bundleFile:3.7.4]

Try to find out tomorrow, if I can solve this dependency.

JosefLe · February 26, 2026, 9:45pm

And Thank you very much for your work.

Piscator · February 27, 2026, 1:13pm

I have openhab v5.1.3 installed inside a docker container and I tried replacing the .jar files as you suggested (and restarted the container):

Deleted: “/openhab/userdata/tmp/mvn/org/openhab/addons/bundles/org.openhab.binding.evohome“
Added your updated .jar file to “/openhab/addons“

However, I am still getting “COMMUNICATION_ERROR” “Authentication failed”.

In “events.log” I find the following. Suggestions?

2026-02-27 13:53:35.703 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:heatingzone:1fa4e093:4377891' changed from UNINITIALIZED (NOT_YET_READY) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
2026-02-27 13:53:35.704 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:heatingzone:1fa4e093:7254191' changed from UNINITIALIZED (NOT_YET_READY) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
2026-02-27 13:53:35.705 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:heatingzone:1fa4e093:4377898' changed from UNINITIALIZED (NOT_YET_READY) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
2026-02-27 13:53:35.706 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:heatingzone:1fa4e093:7307072' changed from UNINITIALIZED (NOT_YET_READY) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
2026-02-27 13:53:35.707 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:heatingzone:1fa4e093:4377844' changed from UNINITIALIZED (NOT_YET_READY) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
2026-02-27 13:53:35.708 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:heatingzone:1fa4e093:4186060' changed from UNINITIALIZED (NOT_YET_READY) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
2026-02-27 13:53:35.709 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:heatingzone:1fa4e093:4186061' changed from UNINITIALIZED (NOT_YET_READY) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
2026-02-27 13:53:35.710 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:heatingzone:1fa4e093:4183163' changed from UNINITIALIZED (NOT_YET_READY) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
2026-02-27 13:53:35.711 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:heatingzone:1fa4e093:4183162' changed from UNINITIALIZED (NOT_YET_READY) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
2026-02-27 13:53:35.712 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:heatingzone:1fa4e093:4377886' changed from UNINITIALIZED (NOT_YET_READY) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
2026-02-27 13:53:35.718 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:account:1fa4e093' changed from UNINITIALIZED (NOT_YET_READY) to INITIALIZING
2026-02-27 13:53:35.728 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:display:1fa4e093:4183164' changed from UNINITIALIZED (NOT_YET_READY) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
2026-02-27 13:53:35.729 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:heatingzone:1fa4e093:4348374' changed from UNINITIALIZED (NOT_YET_READY) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
2026-02-27 13:53:35.730 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:heatingzone:1fa4e093:7306904' changed from UNINITIALIZED (NOT_YET_READY) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
2026-02-27 13:53:35.735 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'evohome:account:1fa4e093' changed from INITIALIZING to OFFLINE (COMMUNICATION_ERROR): Authentication failed

Piscator · February 27, 2026, 1:26pm

I have figured it out. You have to manually remove the openhab binding via the admin web interface and put the updated *.jar file in the addons folder (/openhab/addons for the docker container). Thanks for the update.