Mini Graph Card with sensor per day

Configuration
1

I managed to connect my Water Softener to HA. It also provides a list of values of the daily water usage for the last 30 days. Now I receive 30 values through 30 sensors and would like to show these in a Mini Graph Card. Is there a way to “transform” there 30 single values representing the useage of the last 30 days into a sensor that can be shown in Mini Graph Card?

Thanks HA community

2

You don’t need the 30 values.
I don’t know how the 30 sensors are named, but if you have something like "sensor.current_day’, “sensor.day-1”, “sensor.day-2”, …, just use sensor.current_day in the graph. The history will build itself inside HA.

3

Thanks for your help. I’m not sure if I fully understand what you mean. What I tried is the following:

image
image875×518 83.2 KB

Nevertheless, the mini graph card still only shows the “current_day” value:
image

4

What is your mini-graph configuration?

5 
      - type: custom:mini-graph-card
        entities:
            - sensor.gruenbeck_stat_watercons_current_day
        name: Water Consumption
        show:
          graph: bar
6

Any other ideas?