README.md

pilight-pimatic-efergy

RTL_FM script to read and send Efergy or Chacon Power Metter data to pilight or pimatic

Based on

http://rtlsdr-dongle.blogspot.com.au/2013/11/finally-complete-working-prototype-of.html

http://goughlui.com/?p=5109

You need to use the generic-wattmeter pilight protocol (experimental)

https://github.com/1000io/pilight

Compile

gcc -lm -o EfergyRPI_efergy EfergyRPI_efergy.c

Execute & Save Log Archive

nohup sudo rtl_fm -f 433500000 -s 200000 -r 96000 -g 30 2>/dev/null | /home/pi/efergy/EfergyRPI_pilight log2.csv

Log Example

[date],[time],[wats],[euros]

date:03/09/16,22:42:15,wat:283.198242,euro:0.035400 date:03/09/16,22:42:21,wat:285.585938,euro:0.035698

Pimatic Integration

You can use it with pimatic-log-reader as I do :)

https://pimatic.org/plugins/pimatic-log-reader/

pimatic config example:

{
  "id": "WattMeter",
  "name": "Consumo Watts",  //sensor display name
  "class": "LogWatcher",
  "file": "/home/pi/EfergyRPI/log_efergy.csv",  //log file
  "attributes": [
    {
      "name": "watts",
      "type": "number",
      "unit": "W"
    },
    {
      "name": "euros",
      "type": "number",
      "unit": "€"
    }
  ],
  "lines": [
    {
      "match": "date:(.+),(.+),wat:(.+),euro:(.+)",
      "watts": "$3",
      "euros": "$4"
    }
  ]
}

Thanks to

@Nathaniel Elijah @Gough Lui