Battery voltage sensor

[kevinwright]

I have some locations (e.g. hallways) where I need to run my esp32s off battery.

For the extortionate cost of two resistors it's trivial to monitor the battery voltage level via one of the input pins

https://youtu.be/5JIJO1swQPE

Is this something that anyone is known to be looking at already? If not, I'm open to throwing together some code myself and submitting a PR

[corgan2222]

I'm working on general support of all the Input/Output Pins. Coding is done, but need some more testing.

[DTTerastar]

The Macchina-A0 does this with 12v. You can check out the code on how to do it. Just need a voltage divider.

[stale]

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