ArduCopter 3.2.1 manipule voltage read

Hello everyone,im newbie in this community.First sorry for my bad english

Im senior php developer in iot company.

but I know a little bit electronic and embedded systems.
i have f450 quadcopter with apm 2.6 ,sunnysky x2212 980 kv , 1045 prop

im never successfully setup 3dr power module.

what ever im reading voltage on my arduino with simple code.its very good.
And i see apm has attopilot voltage read option.

And my question starting here:
Where is the attopilot voltage read function in arduino project,i cant find.
i want to manipute attopilot code (because its allready using voltage pin A1-S) looking ready for me.

im no more want to use 3dr power module.Because this improvements very funny and im very interested.

my ready resistor sheme:

volts.jpg

i think i found it.in AP_BattMonitor.cpp and,AP_BattMonitor.h  contains some of my idea.

i will try it.

im waiting for your comments and suggestions.Thanx for all.


Best Regards

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