[I'm just concerned because the flops will need there own clock which will be different from the uno's./quote]why is that a worry, a clock is just the name of a flip flop signal, you don't need anything special.
Now, I want to read two encoders which requires four interupt pins.
But how can I tell when the B input changes?? A change in "A" does not nessarly mean a change in "B"?
When A goes high if B is high moving forward if B is low moving backward
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