Can an interrupt be triggered by the twisting of a potentiometer? Or must it be a digital change?
There is an analogue comparator that can trigger an interrupt. You give it a voltage on one pin and when the voltage on the other pin exceeds it an I terrupted will be triggered.This uses two of the analogue pins, see the data sheet for the processor for detailes.
Thanks! will checkout datasheet.
Also have a look here:-