And I have another doubt as well, what is AREF pin for ??? Should we give an input of 5V to that pin compulsorily or what it is for.
Suppose I have to compare two analog values of 0 to 5V (one is reference which is set by POT and another is coming from speed feedback) and based on the error of these two signals i have to control a variable... how should it be done...
Time and effort spend for helping - Very much appreciated.