Hi there, my power meter has been recently replaced by a new smart meter (ISKRA MT681). The new meter got an optical port (called D0) and transmits the data every few seconds over a serial interface (9600/8N1) as binary. As far as I know, the protocol is call SML (smart message language). Does the…

If you can’t find anything ready and the power meter spits out strings of data, you can use the serial sensor.

Ok, just tried cat /dev/ttyUSB0, but the output is binary encoded. Google pointed me to https://github.com/sunny5/nodeehz , apt-getting node…

Take a look at this: [image] node-red-contrib-smartmeter Node, that reads and parses values from smartmeter devices Node-Red can be installed as a plugin in Hassio, and is well integrated.

@namadori : thx for the input, i’ll take a look at it… as a proof of work I modified the above mentioned js and I’m getting the right values… //*** Continuously read SML data from EHZ and output OBIS values 16.7.0 (Wirkleistung), (Bezug) 1.8.0 and (Einspeisung) 2.8.0 var serialport = require("…

would be great, if home asssistant will support sml protocol in the future. currently it is only supporting dutch dsmr protocoll. home assistant dsmr sensor: https://www.home-assistant.io/components/sensor.dsmr/ openhab supports both protocolls: https://github.com/openhab/openhab1-addons/wiki/…

Update: this is my current state of implementation based on https://gist.github.com/Tafkas/5dfc85fcb9b23e9cf9f08e9b4c143889 - platform: command_line name: sml_output command: python /home/homeassistant/.homeassistant/python_scripts/sml.py scan_interval: 15 # SML Output zerlegen…

hello Christian, I am very interested what you did in order to get the values of a smart meter. Which device do you have? How do you get the sml values? I tried to use the https://flows.nodered.org/node/node-red-contrib-smartmeter module, but installation fails. How did you manage it? Or did yo…

I noticed the similar problem. Can‘t install node-red-contrib-smartmeter. How did you solve the problem?

Hi, I use vzlogger (without volkszaehler middleware) to directly send to my MQTT broker. Works very well. See also here: [image] Smart meter with vzlogger/live energy use as a sensor Share your Projects! Hi, I also setup vzlogger with home assistant. I am using a USB IR …

yeah, but seems the insatllation of the smartmeter node fails with a python error

Support for SML protocol used by smart power meter (eg. ISKRA MT681)?

Configuration

Highwind February 19, 2021, 12:39pm 10

Hi,

I use vzlogger (without volkszaehler middleware) to directly send to my MQTT broker. Works very well.
See also here: