Add a global device to keep track of some helpful data.

[Lash-L]

Finally got around to having some time to do this

[agittins]

This looks great!

What do you think about replacing "Device count" with two sensors: "Visible Devices" and "Total Devices", and using the method used in config_flow.py to count them (ie, visible ones have a recent stamp)? If that's a go-er then you might want to refactor that a bit and put the common part into the coordinator (unless I did already).

Perhaps they should all be in a "Diagnostics" section rather than "Sensors"... I envisage we would end up with the map and other possible sensors in the main "Sensors" category, so maybe classing these ones as diagnostic to start with would be good. I assume it's a property on the sensor that defines it.

Hehe now I'm thinking about whether the calibration stuff would be better to integrate into this page, but maybe that's better left for a later PR 😅

[Lash-L]

Update:

What do you think about replacing "Device count" with two sensors: "Visible Devices" and "Total Devices", and using the method used in config_flow.py to count them (ie, visible ones have a recent stamp)? If that's a go-er then you might want to refactor that a bit and put the common part into the coordinator (unless I did already).

I also used your active scanner() function - let me know what you think about that

[agittins]

Looks great! 🚀