Possible doing math in HABpanel code?

[rossko57]

I don’t know; your important Item types (and some maybe example states) are still secret.

Should they happen to be Number:Energy or similar, work with the quantity value system instead of against it.

Working with Number:Temperature Items in rules

openHAB provides Quantity Type features, which can seem baffling. On top of that, Temperature type Quantities have a few quirks all of their own. These notes intend to guide the rules author. I’ve shown work examples in DSL rules language, see below for other scripts examples. All have similar features, if different syntax. Knowing what can be done is half the battle. What is a Quantity Type? Simply, Item states and rule variables may contain Quantities - that just means a number AND a unit …