Value of MQTT sensor doesn't active in grafic

Configuration
1

Dear Collegues,

Could You advise with folow situation, please?

  1. I have integrated by MQTT electrical measuring parameters. The configuration.yaml add follow (see screen)
    1
    1346×378 32.4 KB
  2. In HA on the dachboard history grapfic and value are missing (see screen)
    2
    21603×431 32 KB
  3. In the same moment i can see that MQTT sensors are active (see screen)
    3
    3591×601 22.3 KB

What do I wrong?

2

Your sensors need a unit_of_measurement to display numeric graphs.

If you add a state_class they will also store long term statistics.

A device_class is useful too.

3

Dear Tom,

Thank You for advice. I am just starting work with HA and i can’t easy write code in yaml. Can i ask for You write, please, here additional what You mean

mqtt:

  • sensor:
    name: “HNPM_U1”
    state_topic: “#”
    value_template: “{{ value_json.U1 }}”
4

…i tried do it (see screen)

1234
1234308×106 7.62 KB

but systems is fault information (see screen)
123
123568×639 82.6 KB

Am i wrong?

5 
  device_class: voltage
  state_class: measurement
  unit_of_measurement: "V"

The list of valid device classes is here: Sensor - Home Assistant

6

Tom, thank You!!! I will try do it. I will inform You about result.

7

…Tom, thank You very much!!! It’s work! :handshake: