I’m using openhab 2.5 and the new bindings. Hi, I’m very new to openhab but i love it. I’m trying to configure my mqtt bindings using files, (if i can’t user paper UI for everything i prefere to use the files for what I can). I already configure mosquitto and it;s working with my sonoff switches…

Please use How to use code fences . I don’t use .things file and I don’t recommend their use so I can’t help with specifics. But the error is pretty clear. You are attempting to send 698489 as a command to a Contact Type Item/Channel. A Contact: cannot receive commands can only receive NULL, UNDEF,…

We-ell, “command” is a bit of a misnomer in this context. I’m guessing you have an inbound MQTT payload ‘698489’ that you need to turn into OPEN or CLOSE, suitable for a contact channel state update. See the binding docs, in particular the use of on= off= parameters for Contact channels https://w…

I tried [imagen] [imagen] [imagen] With this tranformation rule: [imagen] I every case the log answer is alway the same: [WARN ] [hab.binding.mqtt.generic.ChannelState] - Command '698489' not supported by type 'OpenCloseValue': No enum constant org.eclipse.smarthome.core.library.types.OpenC…

You set the “custom on/open” value in PaperUI to just the value. 698489 If you were to define Things in files instead, you would use on="1234" format. But you don’t. But … now you’ve revealed you’ve extracted the 698489 from JSON? So there is already a transformation at work? I’m really not sur…

Sorry thtat was the first option [imagen] The same answer Also tried with 2 diferent sensor with the same error.

The help you get is based on the info you give. Okay, so your JSONPATH appears to be extracting the 698489 okay, because that’s all the message complains about. So let’s assume the “on/off” stuff is in the wrong place in the chain for this job, and does not operate on “Incoming transformations” ou…

Yes I already install, what i haven’t do was any link, I only create the file mqtt.map . Do i need to configure something else?

Yes. The system has no idea that you want to do anything in particular with a random file. You’d want to chain a MAP transform after your JSONPATH transform, as described in the MQTT binding docs.

I’m sorry i must be missing something, i can’t see it. The map transformation is made after i extract the value with the jasonpath in the channel configuration or in another place? The .item file?

https://www.openhab.org/addons/bindings/mqtt.generic/#incoming-value-transformation Transformations can be chained by separating them with the mathematical intersection character “∩”. It’s also documented in PaperUI Applies transformations to an incoming MQTT topic value. A transformation exam…

Mqtt, binding, things and transformation

Setup, Configuration and Use Beginners

rossko57 (Rossko57) April 6, 2020, 11:46am 15

I suppose what would be helpful for giving any useful advice is seeing what your channel definition(s) look like now, and what your map file(s) look like now.
You might need to explain what you would like to happen with your “different codes”.

I think you are re-inventing this wheel