Wiring A0

[vallettea]

Hello,

thanks for this very useful lib.
I don't get if I should connect A0 to the battery directly to the battery in order to monitor battery level ?
Besides, should I distinguish between normal voltage and when it is bellow 1V each using the two piece of code you provide in the example ?

Thanks

[rlogiacco]

No, A0 goes to the analog voltage you want to read.

This library is NOT intended to monitor a battery level or anything like that, I have another library for that purpose called BatterySense.

This library instead is intended to improve the precision of your analog readings when you are not using an external voltage reference.

I mention a battery in the README only to provide one of the many examples when this library can be useful.

When reading voltages below 1V you can use the ONE VOLT internal reference rather than the calibrated one.