Hi to all.
I am going to use the Arduino's analogue to digital converter with the ATMEGA1280 processor. As you may already know the voltage reference of this ADC is 2.5V or 1.1V selectable. But reading the datasheet i have found that there is an extra pin called AREF which as i understood is given 5V from the power pin the VREF is 5V now.
Is that correct?
And if it is correct the only thing to do so that i increase the voltage reference swing is that i connect the AREF with a 5V supply and talking about programming in the void setup () i should write:
Is this all i need to to do? Correct me if I'm wrong.
Thanks & Regards Combinu