Refoss EM06 energy meter data reader with feed to InfluxDB

This python script reads the electricity measurements from one or more Refoss EM06 6-Channel Energy Meters and writes data to InfluxDB. A grafana dashboard is provided as an example for displaying each 3-phase group Consumption, per phase Power, and the voltage values.

Setup:

1. Python3 with necessary pip modules installed, including influxdb API, see includes in script.

2. crontab to launch the reader the desired intervals, example:

   *  *  *  *  *   python3 /opt/refoss-em06-influxdb.py -r=192.168.5.15/EG/OG -r=192.168.5.14/KG/GH 2>&1 >> /var/log/refoss-em06-influxdb.log
   

   Note: multiple -r <IP-Address> allows reading multiple units in one call.

   Commandline properties help with: /opt/refoss-em06-influxdb.py --help

   Refoss EM06 energy reader and InfluxDB writer
   
   options:
     -h | --help            show this help message and exit
     -r | --refossEM06 192.1.1.1/A/B
                            The EM06 device IPAddress with two names /A/B for two 3-phase groups 
                            or as default 'A1/B1/C1/A2/B2/C2', multiple units can be specified
     -i | --dbip DBIP       The influxdb IP-Address
     -d | --dbname DBNAME   The influxdb name
     -u | --dbuser DBUSER   The influxdb username
     -t | --dbtoken DBTOKEN The influxdb password or token
     -n | --nowrite         skip writing to database
     -v | --verbose         show verbose output
   

   Note: you can hardcode the DBNAME, DBUSER and DBTOKEN in your copy of the script to keep the cmdline call short.

   The influxdb line-format created looks like:

   electricity,name=EG,phase=1,ip=192.168.5.15 voltage=235846,current=144,power=-3680,factor=-0.10810816287994385,consumed=-1668 1762030929119
   

3. influxdb (currently I'm using version 2.10)

   • with a bucket and access token configured, and for InfluxDB2 also a dbrp mapping to allow line-format writes. (In my case the bucket is simply called electricity.)

4. grafana (currently I'm using version 12.1.0) with

   • a data source configured to access the influxdb bucket
   • dashboard to display the battery values

Screenshot:

License

Apache-2.0 license