I guess its a dumb question but couldnt find anything about it online. I know its possible to supply the AREF pin with 3.3 V to increase the ADC resolution.
For the project i am working on the analog voltage i will be reading will be between 0 and 2.2 and the increased resolution is a must.
I know i can use another board that has a 12 bit resolution but i really would like to make do with Uno. So i wonder if i can set an analog pin to output 2.3 V and feed it to the Aref pin.
If thats not possible please let me know why, so i can increase my knowledge