Convert switch from Mqtt binding 1.x to 2.5

Add-ons Bindings
1

Hi,
I need help for this: I convert my working Mqtt 1.14.0 binding in 2.5 version, for most of items it work fine, but for one item i have trouble.
In 1.14.0 version
xxx.items was
…
Switch EtatProjo “Etat de projecteur " (Gr_Piscine) {autoupdate=“false”, mqtt=”>[mosquitto:/Piscine/CmdProjo:command:ON:ON],>[mosquitto:/Piscine/CmdProjo:command:OFF:ON],<[mosquitto:/Piscine/Projo:state:ON:M],<[mosquitto:/Piscine/Projo:state:OFF:A]"}
…

The hardware behind is a bistable relais command by “ON” patern and the return information is “A” or “M” (Marche or Arret)

In 2.5 version, I create
xxx.things
Bridge mqtt:broker:mosquitto “Mosquitto” [ host=“192.168.1.210”, secure=false, clientID=“openHabBkup_Piscine”]
{
Thing topic piscine “Mqtt Iot Piscine Controle” @ “PiscineCtrl”
{
Channels:
…
Type switch : Projecteur “Projecteur” [ stateTopic="/Piscine/Projo", commandTopic="/Piscine/CmdProjo", off=“ON”, on=“ON”]
…
}
}

xxx.items
…
Switch EtatProjo "Etat de projecteur " (Gr_Piscine) {autoupdate=“false”, channel=“mqtt:topic:mosquitto:piscine:Projecteur”}
…

Result:
error message:
2020-01-14 09:13:36.034 [WARN ] [ab.binding.mqtt.generic.ChannelState] - Command ‘A’ not supported by type ‘OnOffValue’:
No enum constant org.eclipse.smarthome.core.library.types.OnOffType.A

For command, it’s OK, for return information how to convert “A” or “M” in OFF or ON ?

I also try to use Paper UI for thin items, but i do not see where i convert “A” or “M” to OFF or ON

Thank for your answer

2

First of all here is the doc

The MQTT 2.X binding works with things and channels so no more

{autoupdate=“false”, mqtt=”>[mosquitto:/Piscine/CmdProjo:command:ON:ON],>[mosquitto:/Piscine/CmdProjo:command:OFF:ON],<[mosquitto:/Piscine/Projo:state:ON:M],<[mosquitto:/Piscine/Projo:state:OFF:A]"}

I know people will hate me for suggesting this but, I find configuration of MQTT Things via PaperUI better.
Please have mercy with me. :grimacing:

3

This is in your command topic definition. You need to set:

off="A", on="M"
4

But i have alredy off=“ON”, on=“ON” for commandTopic
I add this to the things for try, but same error and same result.

5

You need to introduce transformationPattern to channel configuration which will convert A to OFF and M to ON. see details from mqtt binding documentation. MAP transformation is most probably easiest for this.

6

Yes i see “Incoming Value Transformation” chapter in documentation, but for me an example is missing.
Can you give me the syntax for on-off.map where on-off.map contain A=OFF B=ON

7

Did you add to or did you modify your previous on/off definition?

8

I add to, if i modify previous value the probleme is not solved and the commandTopic do not work !!!

9

That will never work!
How should openHAB decide which of the contradicting on/off definitions it should use?

Any logs about what happened?

10

It was working fine with binding version 1.14.0 and i was thinking there are at least the same fonctionality in the new Mqtt binding version.

11

I never wrote that, please read carefully. The part i quoted is important.

If you add a second contradicting on/off definition, it will newer work!

You have to use a single on/off definition.

12

See the doc’s for an example.

13

To all, i solve this probleme after many retry:

xxx.things
…
Type switch : Projecteur “Projecteur” [ stateTopic="/Piscine/Projo", commandTopic="/Piscine/CmdProjo", transformationPattern=“MAP:inTransform.map”, transformationPatternOut=“MAP:outTransform.map”]
…

inTransform.map
A=OFF
M=ON

outTransform.map
1=ON
0=ON

It work well but i d’nt know why in ouTransform i must write 1=ON & 0= ON and not on=ON & off=ON, but it work

Tanks to all

14

:+1: MAP was what you needed.

Guessing that 1 or 0 is what is expected from the device.

Please click the square box on post that provided the solution to mark topic as solved.

Thanks