Add time since last update to group max calculation?

[rossko57]

@justjosh

Is there a way to include this into the group calculation

nope, you are stuck with the available aggregation functions for Group states.

@justjosh

without the expire binding in OH3

Available facsimile

Jython Drop-in Replacement for Expire 1.x Binding

Edit: I’ve reimplemented this and am hosting it on my own repo instead of as a submission to the helper libraries. As a challenge to myself I wanted to see if I could replace the Expire binding using Rules. The answer appears to be yes. See https://github.com/rkoshak/openhab-rules-tools for a drop in replacement to the Expire binding. You don’t even need to change your Item configs. The rules will pick up your existing Expire binding configs and use them. The only limitation is you must caus…

@justjosh

even though I reset the global variable each time.

The global variable rTimer is just a handle, a pointer. Setting it to null does not affect any timer it was pointing at, they are completely independent after creation. If your rule finds the handle non-null and wants to cancel an existing timer, you must take the specific action e.g.
rTimer.cancel