This board suports analog reference voltage INTERNAL? If yes, what voltage is it (e.g 1.1, 2.56) and how could I select it? Also, is the ADC on 10 bits on 12? Should I change the analogReadResolution ? How exactly?
hi, the ADC is 12 bit.
I don’t understand what do you mean.
Yes, the internal reference voltage is 1.2V, it’s already selected, you don’t need to select it manually.
The default resolution is 4096, you don’t need to change that.