Hi there; I am looking for information on how to expand the parameter list for a smart meter (SML; via USB).
Which values can I choose from the OBIS definition and what is the notation in the item and things file of openhab 2.
(http://Openhab Bindings) here is a description but without information about which values can be defined.
See section Channels… simply use the obis number. Change dots to - and asterisks or colons to _
Oh, I didn’t know that this exists 
In my case I have not the Raspi close to the smartmeter, so I needed anyway a solution on Wifi.
I put the SML reader/decoder in a Mini-ESP8266 and let it post via MQTT the Meter values 1.8.0, 2.8.0 and current power consumption/delivery. This is anyways all what I can retrieve from my ISKRA MT691.