Improved voltage alarm during charging

Is it possible to improve current alarm voltage? Now it relies phone entirely and your phone need to be connected to bike at all time. So i start to think that is there possible to add / move that alarm feature to display.

If voltage alarm is in display it works even if phone is not connected. I know that there is no speaker or buzzer etc at display, but i think it can use bike headlight (and of course taillight if connected) so when alarm go off it start to put head light on - off - on - off (in some speed, not too fast, but not too slow either) You definitely notice if bike start to blink it lights :D

And maybe it can blink display back light also :D

Also when alarm go off it was nice if it can shutdown by pressing any button from display, or some like mode button etc.

I think it would be good to add "charge mode" in display, so when battery is charging it goes automatically this charge mode and then it uses voltage alarm value that is previously saved at phone app. And when this charge mode is on it should override display autoshutdown feauture, so it is on always during this mode. And dedicated icon would be nice also.

And if user take charger off display should go "normal" mode and use that auto shutdown time which has been set before (if use any) and charge icon go off too etc.

I know that at least Kunteng controller protocol include byte that controller send to display when battery is charging. It is B1 = 2 (where protocol start at B0 which is start byte (0x41) 65) So it is very easy to display see when battery is charging and go to that "charge mode" and set voltage alarm.

I don't know if Bafang protocl include that kind of byte but i am pretty sure that there is also.

Or that charge mode can be triggered using phone app, like button in dashboard etc.

But like always this is just an idea, you guys decide if you use it or not :D

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