XIAO ESP32S3 Plus: ADC_BAT on GPIO10?

Very helpful, thank you! I’ll take a look at that.

Would you mind sharing the resistor and capacitor values you settled on?

I’ve collected a bunch of samples from a voltage sensor and ADC readings, and then ran a linear regression to create a function to convert from ADC value to mV, but if I can get the ADC to report an accurate value, that would certainly be better.

Thanks again.