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Hi PoltoS thanks for reply, I believe I didn't explain correctly: actually I intend to use a few z-uno devices, each one having one Binary Sensor Purpose is to know which Z-uno transmitted report. I don't want to use the Z-wave ID as it is assigned by controller and if one of the z-unos is unpaired ...

I use Z-uno in a quite simple application as Binary sensor
As I would like to use a few of them I want to know without ambiguity which one transmitted data
If I set a variable with a unique serial number in the sketch how could I transmit it to the controller ?
Anyone has done it before ?