Not able to get feedback from sonoff

Platform information:

  • Hardware: Resp pi 4
  • OS: openhabian 2.5.1

Hi All
I’m tried to bind a sonoff device to openhab with mqtt.
I been able to send commands to the device.
But for some reason I didn’t got any feedback on OH when switching the module.
In the logs I get:

Executing the JSONPATH-transformation failed: Invalid path '$.POWER' in 'OFF'

Thanks to @H102 I manage to fix the problem.

@H102 - can you share your solution?


I presume your openHAB stateTopic is tied to the POWER topic of your sonoff. This doesn’t require using a JSON transformation at all, as the POWER topic returns either OFF or ON - nothing in JSON format.

If you share your things configuration we can very quickly tell you what to change!

You may not need the transformation, give it a try without it. Below is an example of one sonoff device I have that works fine.

Thing topic sonoff2 "Couch Light" @ "Couch Light" {
//    Channels:
//        Type switch : power        "Power"         [ stateTopic="stat/sonoff2/POWER", commandTopic="cmnd/sonoff2/POWER" ]
//    }

The // are where I have commented this out and moved to creating my Things via PaperUI and use files for items. This is also the recommended way for most users.

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