Robin2:
Is it possible to get a reliable interrupt from an analog signal? What value does the signal have to reach in order to fire the interrupt?What value do you expect to get with analogRead() an instant after the same signal triggers an interrupt.
Have you a link to the device you are using? Ar you sure you need to use analogRead at all?
...R
There are different modes of triggering; any low level, any change, rising edge, and falling edge. I plan to trigger on any change.
After some research, to my understanding, interrupts are most stable on single bytes of data, seeing as the values that analogRead() returns is 10 bit resolution (0-1023), i would wonder if this can even be done,