Tasmota LWT status - Upper/Lower case letters - 'Online' in 6.4.0 - 'online' versions before

[h4nc]

It looks like in the newest Version of tasmota 6.4.0 the LWT status is reported as 'Online' and 'Offline'instead of 'online' and 'offline'.
I don't really know if its a tasmota or a home assistant issue. But I think I should try it here first.

It causes problems with entities in home assistant.
Things like the availability_topic of mqtt-lights will be unavailable and there is no option for that to change it to'Online' in HA.

It seems like for now there is no way but to uncomment this line to make the light work again (of course coudl also go back to 6.3.0).

[digiblur]

I checked a couple of my previous configs in and I've always had them as 'Online' and 'Offline'

[h4nc]

Thanks for checking your configs.

That's weird. Maybe I also always had 'Online'. The strange thing is that my LWT automations stopped working and I had to change them to 'Online'. They worked before the Sonoff-Upgrades.

[h4nc]

Ok so I downgraded one of my sonoffs to 6.3.0 (both 6.3.0 and 6.4.0 from github, I didn't change something)
In my screenshots you can see that there is indeed a upper/lower case letter difference for both versions. And because availability-topic only listens to online and offline (lower case) this will fail.

Offtopic: I'm also not a big fan of changing the version number from 6.3.0 too 6.4.0(sonoff).

[arendst]

Let me guess, Germany?

https://github.com/arendst/Sonoff-Tasmota/pull/4392

[h4nc]

Yes, it's the german file, thanks.

[arendst]

But this is the main reason why it has to stay as it is: https://github.com/arendst/Sonoff-Tasmota/issues/4388

[h4nc]

Ok, I get that all languages should use 'Online' consistant. It's fine to change it.

So it seems like now it gets a home assistant issue, right? But if it was always Online for all the other languages, how did you use the 'availability_topic' in ha? As I said before it seems like it only listens to lower case online's ;-)

From here: https://www.home-assistant.io/components/light.mqtt/

availability_topic
(string)(Optional)The MQTT topic subscribed to receive availability (online/offline) updates.

I think sonoff devices are one of the most used mqtt devices in home assistant, so it wouldn't make sense to have those differences.

[arendst]

I don't think Germany is the only country using HASS. The others never complaint so I guess there must be a simple HASS solution...

[h4nc]

Yes, I also think so. I will take this to the ha community. Let's see what they say. Could also be possible that most guys don't use the availability_topic, as this isn't mandatory.

[andrethomas2]

Closing this issue as it has been answered.

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[digiblur]

@h4nc I use Home Assistant and in the config for the switch I just set the payload for avail and unavail to what I want.

[h4nc]

Ok thanks, I will try that.

However, I already opened a topic in the ha community. If you have the same issue, you might find the solution here:
https://community.home-assistant.io/t/mqtt-light-availabilty-topic-online-and-online/85448

[h4nc]

Ok, so the hint from @digiblur was the problem solver.

Had to add those lines:

    payload_available: "Online"
    payload_not_available: "Offline"

The default values are lower case.