Convert numeric sensor output to text

Configuration
1

Dear HA Forum,

I have a working Home Assistant configuration reading Modbus values from an Epever inverter.

Some of the returned values are numeric, I would like to convert these numeric values to text to make the dashboard easier to read. eg:
0=Normal, 1=Overvoltage, 2=Undervoltage, 3=Undervoltage Disconnect, 4=Fault

After reading many posts on the subject i still don’t get it, there are code snippets that i could modify but i have no idea where to place this code, templates, configuration.yaml or states?

Could someone give me some advice please?
Kind regards
Ade

2

I’m no expert, but I was at a loose end … I did a search and I believe this is what you are looking for?

LINK

Hope that works for you :slight_smile:

Regarding needing help, you could offer more information, such as the sensor, is it an attribute you’re trying to change. What have you come up with that doesn’t work?

3

Hi RoadkillUK,
Thanks for the tip but i have read this post previously. I tried adding my relevant values and adding it to configuration.yaml but i got errors. Not sure if it should go in configuration.yaml or somewhere else?
Many thanks
Ade

4

Regarding more info, i’m a bit embarrassed to post code as i see so many folks getting scalded for incorrect formatting of pasted code here. I tried the 3 backticks but it still looks a mess, more stuff i don’t understand.
Here is the beginning and the sensor from configuration.yaml

# Loads default set of integrations. Do not remove.
default_config:

# Load frontend themes from the themes folder
frontend:
  themes: !include_dir_merge_named themes

automation: !include automations.yaml
script: !include scripts.yaml
scene: !include scenes.yaml

modbus:
- name: epever
  type: rtuovertcp
  host: 192.168.1.170
  port: 8088
  delay: 5
  timeout: 10
  message_wait_milliseconds: 30
  sensors:
 - name: "Battery State 2"
# 0:Normal, 1:Overvoltage, 2:Undervoltage, 3:Undervoltage Disconnect, 4:Fault
    slave: 10
    address: 0x3589
    input_type: input

It is the numeric output from sensor Battery State 2 that i would like to show as a text value on my dashboard EG: Numeric value 0 to show ‘normal’ on the dashboard

5

If you have the numeric code in an existing sensor, create a template sensor, which you can do via the UI, under Helpers. State template should be (guessing the entity ID from the code above):

{{ {"0": "Normal",
    "1": "Overvoltage",
    "2": "Undervoltage",
    "3": "Undervoltage Disconnect",
    "4": "Fault"}.get(states('sensor.battery_state_2'), 'unknown') }}

To format code, type three backticks, paste your code after it, then three more backticks:

```
PASTED CODE
```

Here is the UI screen you want:

image
image559×838 29 KB

6

You wanna try formatting that again :slight_smile:

7

Thanks Troon,
I was using the wrong symbol :grinning:
Ade

8

Thanks RoadkillUK,
Got the code formatting sorted at least, was using the wrong symbol
Ade

1 Like
9

You can also make it an array and therefor the numbers are not needed.

{{ [ "Normal",
     "Overvoltage",
     "Undervoltage",
     "Undervoltage Disconnect",
     "Fault"][states('sensor.battery_state_2')|int] }}
10

I only went to make a coffee, came back and you’re sorted. Nice :slight_smile:

11

Thanks Troon,
Good clear explanation, got it working now :slight_smile:
Cheers
Ade