OH3 MQTT issue

Setup, Configuration and Use Beginners
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1

I have just managed to get OH3 to update from 2.5 and has taken me a few days after running in to problems.

Just as i thought i was done i have found that none of my items would work having search i think i have found out why, am working with MQTT v1 and this wont work with OH3?

This it how i have currently got my items set up

Switch  F4_Garden         "Garden"            <light>         (GF_Garden,  gAway, gAlarm, gAway2)    {mqtt=">[mqttoh2:cmnd/sonoff7/POWER:command:*:default],
            <[mqttoh2:stat/sonoff7/POWER:state:default]" }

Understand is not the best way to have items setup but it was the way i learnt a few years ago and its worked so i continued

My question is is my problem likely to be as above and if so is the easy fit without having to start from scratch i have about 30 items and really do not want to have to have to set them all back up?

For the time i just want to get the BasicUI working touse in the app, until i can spend time understand the new OH3 setup, working on a raspberry pi with openhabian

thanks for any help

2

One of the breaking changes when moving to OH3 is that NO version 1 binding is supported. In case of MQTT a version 2 binding is out there for 2 years now.
This “new” MQTT binding works with things and channels, so you have to adjust your item definitions.

3

i thanks for this, so no easy fit for my setup, could you give me an example of what i would need to do to adjust my item definitions? please so i have something to work towards

and would this be changing the code i have set up on each item or starting all over again?

4

It seems you are using tasmota devices, in addition to the mature documentation of the MQTT binding there are numerous tutorial posts fitting your problem. Use the search function.

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5

How to convert from v1 to v2, hidden in the documentation:

6

Thank you for this its a great starting point

One other question I have used map files to change the values on some items would this is work can’t see anything in the link?

7

Yes, that should still work.

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