Remember current volume, change it when automation running and set it back

[jackjourneyman (Jack)]

Just stumbled across this:

Trigger based template sensor to store global variables

This was posted earlier here. I’ve added some improvements, mostly to avoid errors, and also added some additional stuff suggested by @erkr in this post It can happen you want to store some data to use it in another automation, or make sure it’s still available after a restart of HA. You can use helpers for that (eg and input_text entity) but these are limited in which types you can store, and they can be easily edited in the GUI. The configuration below creates a trigger based templates senso…

Could you use it to store volumes?