Getting data from remote MQTT server, but not being able to add as variable

Third party integrations
1

Hello,
I have installed Mosquito and have configured it to connect to a remote MQTT server. When I listen to the topic I get all the values, but when I try to configure a sensor base on one of those values I get nothing.

Captura de ecrã 2020-10-15 024849
Captura de ecrã 2020-10-15 024849362×504 53 KB

Any idea of what I’m doing wrong, or how can I get this to work.
This is basically data from a BMS that I want to publish into HA in order to control devices depending of the status of my battery.
Thanks

2

It’s hard to read it in your picture, but it looks like the topic you’re listening to is another than in your sensor.
Please post code, not pictures of it.

3

Captura de ecrã 2020-10-15 213613

And the code.

sensor:

  - platform: mqtt
    state_topic: "Batrium/7410/3e32"
    name: "MinCellVolt"
    unit_of_measurement: 'V'

both topics are from the same server. Actually my intention is to put Batrium/7410/# and be able to record several variables across.
On the MQTT addon i am able to see all the data, but even if I don’t press stop listening it will stop once I leave.

4

After many tries the code


  - platform: mqtt
    name: "MinCellVolt"
    state_topic: "Batrium/7410/3e32"
    value_template: "{{ value_json.MinCellVolt }}"
    unit_of_measurement: "v"

Worked well. Not without having to restart several times, and troubleshoot allot. But since I’m hobby learner is ok.
Thanks.

5

If the payload’s length exceeds 255 characters, it will not be displayed. That’s because an entity’s state can store a maximum of 255 characters.

Looking at the truncated screenshot you posted, it’s unclear if the JSON payload exceeds 255 characters. However, I suspect it does because when you used a value_template:

{{ value_json.MinCellVolt }}

the extracted value was shorter and that’s why it was displayed.