Home Connect binding

holger_hees · October 15, 2020, 2:31pm

first, thanks a lot for this nice binding

but I found two issues.

The first error occurs when I change a washing program. I can see that the related item is updated. Like if I switch the washing machine to “Night Wash” I see it in my openhab UI for the assigned item.

but right after I get the following exception.

2020-10-15 15:49:41.514 [WARN ] [internal.client.HomeConnectApiClient] - [API_ERROR BOSCH-WAV28M40-68A40E39C393] GET 404 https://api.home-connect.com/api/homeappliances/BOSCH-WAV28M40-68A40E39C393/programs/available/LaundryCare.Washer.Program.Mix.NightWash
...
2020-10-15 15:49:41.515 [WARN ] [dler.AbstractHomeConnectThingHandler] - [HANDLER] Could not update program options. Communication error! response code: 404, message: , body: {
  "error": {
    "key": "SDK.Error.UnsupportedProgram",
    "description": "Program not supported"
  }
} (Tried at Thu Oct 15 15:49:41 CEST 2020)

but I don’t get this error for all programs.

The following programs produces this error:

LaundryCare.Washer.Program.Cotton.CottonEco
LaundryCare.Washer.Program.Rinse
LaundryCare.Washer.Program.Spin.SpinDrain
LaundryCare.Washer.Program.DrumClean
LaundryCare.Washer.Program.Super153045.Super1530
LaundryCare.Washer.Program.Mix.NightWash

and the following programs works without any error

LaundryCare.Washer.Program.Cotton
LaundryCare.Washer.Program.EasyCare
LaundryCare.Washer.Program.Mix
LaundryCare.Washer.Program.DelicatesSilk
LaundryCare.Washer.Program.Wool
LaundryCare.Washer.Program.SportFitness
LaundryCare.Washer.Program.ShirtsBlouses
LaundryCare.Washer.Program.Sensitive

looks like not all programs provides additional program options.

and the second error occurs sometimes after I switched the washing machine on and off

2020-10-15 15:22:28.076 [INFO ] [dler.AbstractHomeConnectThingHandler] - [HANDLER BOSCH-WAV28M40-68A40E39C393] Set Waschmaschine to ONLINE and update channels.
2020-10-15 15:22:28.411 [WARN ] [internal.client.HomeConnectApiClient] - [API_ERROR BOSCH-WAV28M40-68A40E39C393] GET 409 https://api.home-connect.com/api/homeappliances/BOSCH-WAV28M40-68A40E39C393/status/BSH.Common.Status.DoorState
...
{
  "error": {
    "key": "SDK.Error.HomeAppliance.Connection.Initialization.Failed",
    "description": "HomeAppliance is offline"
  }
}

or

{
  "error": {
    "key": "SDK.Error.HomeAppliance.Connection.Initialization.Failed",
    "description": "HomeAppliance did not respond to connection initialization requests in time, it might be offline"
  }
}

I guess this happens on corner cases where the real device power state is not synchronized immediately. Like in the following case

machine is power on
homeconnect is informed about this power state
hommeconnect informs openhab that the device is on
machine is switched off
openhab is still thinking, the machine is powered on and tries to fetch some data from homeconnect
hommeconnect informs openhab that the device is off

after 10 failed requests in a row where the washing machine was in state offline I got

{
  "error": {
    "key": "429",
    "description": "The rate limit \"10 successive error calls in 10 minutes\" was reached. Requests are blocked during the remaining period of 347 seconds."
  }
}

if you need more information or additional debugging. Let me now.

btw. I’m using openhab 2.5.9 and your binding in version 2.5.9

holger_hees · October 15, 2020, 3:01pm

@jb4711

I tested a little bit more the second issues and uploaded the related log file

homeconnect_2020-10-15_16 53.zip.txt (3.7 KB)

I think my guess is right.

I switched off my washing machine.
Was waiting until the openhab thing was going OFFLINE
Then I switched the washing machine on again
And right after the openhab thing was going ONLINE, I switched the washing machine off again

now as you can see, the openhab binding is still trying to update a lot of states which results always in the mention error messages

The disconnect event from homeconnect was coming in this case with a delay of 3 minutes,

bf8392 · October 18, 2020, 9:26pm

Hi =) Would you still need testers? Which version should I test? =)

jb4711 · October 20, 2020, 1:16pm

Tester users are more than welcome. I try to release a new version by the end of the week. Packed with lots of new stuff

Will let you know.

Thanks

jb4711 · October 20, 2020, 1:19pm

Thanks for testing. Will try have a look. Let keep you updated.

bf8392 · October 20, 2020, 2:18pm

Very Cool! Looking forward to it =)

RGroll · October 20, 2020, 4:15pm

Sound very nice!

I´m a bit lazy right now setting up the HomeConnect bridge, but would love to test this. Is an OH3 version already on your roadmap or is it OH2.x only right now?

Thanks a lot for your work!

jb4711 · October 22, 2020, 11:04am

I’m almost done with my code refactoring todo’s. After that I will start with the OH3 migration.

RGroll · October 22, 2020, 11:14am

Perfect - thank you!

As it seems, you are a user of HomeConnect devices for yourself. Maybe you´ll find a few minutes to give me an advice on this topic:

As my child loves dirt and isn´t as clean as I would love him to be - so we need a quick exchange for the current machine. And if I don´t come up with a quick solution the automation part gets burried in regards of just having some generic machine from the local electronic store (which I have to fiddle around with to make it at least somewhat ‘smart’ then and also keeping the women acceptance factor >=.7 - which is hard sometimes )

aMUSEd · October 22, 2020, 11:31am

Hi guys,
on my environement OpenHab 2.5 the new version of the binding causes strongly increased memory usage and high cpu usage. If I stop the binding everything turns to normal. I use the same config for more than one year. The former version from january 2020 worked well but died once a month.

Anys suggestions here would be nice!
Best regards, Thomas

jb4711 · October 22, 2020, 11:33am

I will release a new version soon (Friday or Saturday).

aMUSEd · October 22, 2020, 11:40am

Hi, do you need any logs for analyzing this strange beviour?

jb4711 · October 22, 2020, 11:43am

No, I think I know why this happens. I’ve replaced the SSE client library and improved the SSE connection monitor.

aMUSEd · October 22, 2020, 11:45am

Fine thanks in advance! I could test the new release if needed

acfischer42 · October 22, 2020, 12:03pm

Hey,

I have a Bosch Washing Machine with Homeconnect and am quite happy with it. WAWH2642FG.
Using integration with Openhab mainly for status updates when it is running and occasionally remote start. Anyway you need to load and “arm” the machine. and obviously unload.
You can also get the status of Detergent and Softener.

hope this helps
Achim

jb4711 · October 22, 2020, 1:26pm

Thank you for testing @holger_hees @Lodewijk. The logs you’ve provided helped me to understand the problem. @Lodewijk sorry for the late response.

There are the following problems:

Certain washer programs cannot be selected and started.
It’s not possible to select some programs via openHAB. If a program is selected directly on the appliance they change is reflected in openHAB. Unfortunately, openHAB is not able to fetch program options or start the program via API call.
Affected programs
LaundryCare.Washer.Program.Cotton.CottonEco
LaundryCare.Washer.Program.Rinse
LaundryCare.Washer.Program.Spin.SpinDrain
LaundryCare.Washer.Program.DrumClean
LaundryCare.Washer.Program.Super153045.Super1530
LaundryCare.Washer.Program.Mix.NightWash
→ I’ll create a bug ticket at the Home Connect developer site. It is very strange that the API is responding with a list of supported programs and later on replies with Program not supported. It would help me if you could test it again with the new binding version below. A request export would be nice (http(s)://[openhab-ip]:[openhab port]/homeconnect/log/requests).
Incorrect thing state due to slow state sync

I have no idea what to do about it? Suggestions are welcome.

Here is my current working binding: org.openhab.binding.homeconnect-2.5.9.202010221151.jar

holger_hees · October 22, 2020, 1:55pm

@jb4711 nice new binding UI I will provide a new logfile when the current washing program is done

and for the second problem, I would recommend set the thing to OFFLINE when we get the response “HomeAppliance is offline”, because in this case we can except an upcoming OFFLINE event. At least I would stop any request to HomeConnect for the next 5 minutes, to avoid that our client is blocked/banned from their side.

holger_hees · October 22, 2020, 3:14pm

@jb4711

2020-10-22_17-13__homeconnect_api_bridge_default__requests.json (36.0 KB)

Lodewijk · October 22, 2020, 6:23pm

No worries, i tested it right away with the new binding, but i get the same response, i attached the request export.2020-10-22_20-12__homeconnect_api_bridge_68f832d4__requests.json (75.2 KB)

i also like what @holger_hees is suggesting, my dishwasher is staying online when powered off but my washing machine is offline when powered off. But with the new monitor it stays online even when its powered off. When i eventually power on my washing machine after a couple off days it wont reconnect to OH. I have to reboot OH to get it working.

Thanks!!!

jb4711 · October 23, 2020, 3:45pm

@holger_hees @Lodewijk

I’ve received a response from the Home Connect support.

Hi Jonas,

Not all washer programs are supported by our Home Connect API. So there is a possibility that a washer will support programs that cannot be activated through the use of our API, even though a user can manually select and activate these programs on his/her appliance. That is the cause of the error you are encountering, as you the API will only return programs it supports. Please find the list of available washer programs here.