> I've come up with a routine that is somewhat crude -- it keeps track of the
> last 3 calculated values (sort of a FIFO), and if a new value varies by
> exactly +/-1 from the last displayed value, then it does not immediately
> update the display -- it waits until that new value is the result for 3
> consecutive cycles.  If it goes back to the last displayed value within the
> next 2 cycles, then no change will be seen.  If the change is more than 1 at
> any time, it updates the display immediately.  But I'm guessing there's a
> better way -- is there?

Median filter?  Take, say, 5 samples, put them in increasing order from least
to greatest, then take sample 3.

Mike H.

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