Current leak using a voltage divider with the XIAO ESP32-C6

[liaifat85]

@pablo888

Below is my setup for reading the USB voltage and battery voltage.

Do I need to worry about any current leak here through the battery voltage divider which may impact battery life?

I was considering adding a transistor connected to an output pin which would enable the battery voltage divider only when the voltage needs to be read. I am not sure if it is really required though.

You can use an NPN transistor or an N-channel MOSFET to connect/disconnect the ground side of the voltage divider.Turn on the transistor only when measuring the battery voltage.