I am getting below cell voltage values from my inverter. Displaying entity value in a card on dashboard seems easy. I am not sure how to do any mathematical formula etc using entities. I like to do the following, any help / advice appreciated.
- Round the below voltage to 3 decimal
- Display the smallest (minimum) value
- Display the largest (maximum) value
- Display the different of the largest vs smallest (largest - smallest)
i would be displaying 2, 3 and 4 in a separate card.