Maybe it would be nice to have a possibility to read the batt level of the Nextion enhanced displays.
And maybe also a power level indication, would be a nice to have feature.
Generally the power in the batteries that power the RTC (CR2012 or the likes) last for years.
It is generally not a smart idea to drain it by polling for a power level - then it lasts days.
This has been the way with RTC batteries for decades with a history dating back to early PCs.
I am now reviewing all of the Feature Requests, this will take some time, patience please.
Request carried forward