Multiple devices in Home Assistant

[MkoMarac]

I have searched this topic, and haven't found how to use multiple devices in HA

is this even possible?

this is setup from Home Assistant

{

  "mqtt_host": "myMQTThost",

  "mqtt_user": "myUsername",

  "mqtt_password": "myPassword",

  "mqtt_topic": "mytopic",

  "protocol": 16,

  "frequency": 319500000,

  "gain": 60,

  "frequency_offset": 350

}

I am using rtl_433 to import weather station data into Home Assistant and would like to get Vaillant data from heater unit and water tank. 

How to collect all of data and import them through MQTT into Home Assistant?

is it possible to send commands (or maybe MQTT payloads)?  the goal is to control Vaillant wireless thermostat and Velux sky windows with Home Assistant?

thanks

[Christian Zuckschwerdt]

For MQTT you currently need a script to pipe the output to mosquitto_pub, or use a bridge like described here http://triq.net/articles/rtl-433-networking

rtl_433 has no "sending" capability.

I don't know how that setup given in your question controls rtl_433, but there is no "gain" on rtl-sdr and a frequency_offset is not useful at all.

[MkoMarac]

this is working settings copied from Home Assistant setup. and this works

if rtl_433 has no sending capability, is there option to set this up to listens two frequencies, and how?

thanks for support

[Pat Rooney]

You can use the -R option to specify more than one device to listen for.

[Tommy Vestermark]

I have a setup working with piping data from rtl_433 to Home Assistant via MQTT.

It is quite easy to get the output from rtl_433 to MQTT. As shown in the github page, the following command works in Linux:

rtl_433 -F json -U | mosquitto_pub -t home/rtl_433 -l




Getting MQTT data into Home Assistant is a bit more complicated - especially since HA, cannot easily filter messages from individual sensors based on content.





But add the following line to configuration.yaml:

mqtt:
  broker: <IP address of MQTT broker>

Then I e.g. add the following to sensors.yaml:

  - platform: mqtt
    name: "Living Room Temp"
    state_topic: "home/rtl_433"
    filter_template: "{{ value_json['model'] == 'Fine Offset Electronics, WH2 Temperature/Humidity sensor' and value_json['id'] == 31 }}"
    value_template: "{{ value_json['temperature_C'] }}"
    unit_of_measurement: "°C"
    force_update: true

However beware that the "filter_template" statement is not part of standard Home Assistant, but something I implemented in a fork here: https://github.com/vestom/home-assistant.github.io/tree/mqtt_filter_template

See also this pull requst: https://github.com/home-assistant/home-assistant/pull/12666





OpenHAB is apparently much more flexible wrt. MQTT messages, and I might change to that myself in the future...


[MkoMarac]

Where to put this option in this syntax?:

{

  "mqtt_host": "myMQTThost",

  "mqtt_user": "myUsername",

  "mqtt_password": "myPassword",

  "mqtt_topic": "mytopic",

  "protocol": 16,

  "frequency": 319500000,

  "gain": 60,

  "frequency_offset": 350

}

these are settings in Home Assistant to tune rtl 433 compatible tuner to listen weather station.

and where can I insert this -R option?