EVCC as HA-addon and DSMR cable

[Dextro86]

I have EVCC as a HA add-on and have a P1 cable connected to the meter (DSMR). I use the DSMR Smart Meter add-on, not the DSMR Reader add-on. HA has all the DSMR data and I would like to feed this data to the grid/meter section in EVCC, any idea on how to do that?

[VolkerK62]

I don´t know HA, but I think, by using the MQTT or HTTP plugin?

[Dextro86]

I managed to find out how to feed HA data and thus my DSMR values to EVCC. Problem is I don’t have 1 value that is either negative or positive, but I have two values energyproduction and energyconsumption. Any ideas?

[VolkerK62]

no problem, just add the values by using the calc plugin
https://docs.evcc.io/en/docs/devices/plugins#calc

[Dextro86]

That’s a little beyond my scope I guess

[VolkerK62]

Not really 😄
Here is an example by using MQTT
With HTTP it works in principle the same way

meters:
- name: DSMR
  type: custom
  power:
    source: calc
    add:
    - source: mqtt
      topic: ...... # production
      timeout: 60s
    - source: mqtt
      topic: ..... # consumption
      timeout: 60s