Smart Home Systems

Here are some examples to get started with various smart home systems. They all still require some changes so make sure to modify them to fit your setup.

openHAB

Integration for openHAB requires that the MQTT Binding is used. The example connects through the Bridge mqtt:broker:localhost

The topics you enter under stateTopic must match the topics you have configured in the sml2mqtt configuration.

Run sml2mqtt with the -a or --analyze flag to see the topics that are being published.

.things file

Thing mqtt:topic:stromzaehler "Stromzähler" (mqtt:broker:localhost) [
        availabilityTopic="stromzaehler/status", payloadAvailable="ONLINE", payloadNotAvailable="OFFLINE"
    ]
{
    Channels:

    Type number : leistung          [stateTopic="stromzaehler/leistung",   unit="W"]
    Type number : energie           [stateTopic="stromzaehler/energie",   unit="kWh"]
    ...


    Type string : status            [stateTopic="stromzaehler/status"]
}

.items file

String          Zuhause_Status     "Status [%s]"         {channel="mqtt:topic:stromzaehler:status"}
Number:Power    Zuhause_Leistung   "Leistung [%d W]"     {channel="mqtt:topic:stromzaehler:leistung",  unit="W", expire="5m"}
Number:Energy   Zuhause_Energie    "Energie [%.2f kWh]"  {channel="mqtt:topic:stromzaehler:leistung",  unit="kWh"}

HomeAssistant

Integration for Home Assistant requires that the mqtt integration is used.

The topics you enter under state_topic and topic must match the topics you have configured in the sml2mqtt configuration.

Run sml2mqtt with the -a or --analyze flag to see the topics that are being published.

mqtt:
  sensor:
    - name: "sml2mqtt_energy_total"
      unique_id: f955b69a-828b-4cad-bafd-7563a909153e
      state_topic: "sml2mqtt/meter1/energy_total"
      icon: mdi:transmission-tower
      unit_of_measurement: kWh
      state_class: total
      device_class: energy
      availability:
        topic: "sml2mqtt/status"
        payload_available: "ONLINE"
        payload_not_available: "OFFLINE"

    - name: "sml2mqtt_momentary_power"
      unique_id: 6ddc1f63-bd73-4d9b-86a1-3e7dfeccee1e
      state_topic: "sml2mqtt/meter1/momentary_power"
      unit_of_measurement: W
      state_class: measurement
      device_class: power
      availability:
        topic: "sml2mqtt/status"
        payload_available: "ONLINE"
        payload_not_available: "OFFLINE"

    ...