Add bluetooth dual water timer

[AdrianGarside]

Add dual water timer bought on Amazon (and visually there's a number of brands selling the exact same one).
https://www.amazon.com/gp/product/B0D13W939Y/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&th=1

[AdrianGarside]

Should I make the last runtime / current spray time just attributes on the valve states sensors? They probably won't be that useful but attributes are much more of a pain to get at / use in automations.

[make-all]

The schedule values do not appear very useful, and should be moved to attributes, but current and last runtime appear to be more useful.

[AdrianGarside]

Is there a better way to present the durations? In the screenshot in the PR, valve 1 ran for 2s. After scaling to minutes it gets rescaled by home assistant back into seconds for display but with an introduced error. The spray time is scaled the same way but since it was full minutes there was no rounding but it gets presented in an inconsistent way. If I set a precision manually on either they become (for e.g) 0.03 min. Setting precision to 0 in the yaml gives:

Precisions of 2 & 0 respectively may be the best:

It would be nice if there was a way for home assistant to either be consistent and show it as MM:SS or be smart and show sub-minute values as seconds and then switch to either MM:SS or MM.xx minutes.

[make-all]

You shouldn't need to scale sensors with a class of duration. Just set the unit to s, and let HA take care of formating

[AdrianGarside]

You shouldn't need to scale sensors with a class of duration. Just set the unit to s, and let HA take care of formating

Then everything becomes seconds, which isn't great when the runtime will typically be more consumable in minutes:

My personal ideal would be consistency so get the MM:SS display for both of these:

Some of the changes I was trying weren't taking full effect when simply reloading with a new config. This is the result when I add from scratch with seconds (no scaling) and class: duration:

That's what you suggested and I think that's the best that can be done.

[AdrianGarside]

@make-all I think this is ready to go.

[AdrianGarside]

@make-all removing the mode: box lines changes the entity config to:

Which is much less easy to use to set an accurate time than the way it presents with that setting (in PR description).

[make-all]

This can be changed in the UI if the user prefers a different representation of the number entities. Unless there is a good reason for it, the default should follow standard HA policy