Need ADC function

[dslocum]

Hi,

I'm not sure what to call it, so I haven't had much luck in my searches.

I'm taking multiple ADC readings and applying a divisor (/6). Therefore I end up with a number from 0 to 5. That works fine.

The problem is that there is sometimes a bit of noise on the ADC inputs which sometimes causes glitches or jumping in my numbers. A hardware solution to this is not practical for other reasons.

What I would like to try, is to take several ADC readings and then make a decision which of the 0 - 5 readings had the most readings and then use that as my final number.

Please be kind... I'm not a math wiz.

Thanks

Doug

[drdoug]

Take a series of readings and average them. About 30 should be fine. Ill try to post some code later but no need to wait for me to try it out.
Btw "Dougs" are awesome.

[Mince-n-Tatties]

if you know the expected range of good values then you can also simply dump values which are outside your expected range.

if you want to go completely nuts, then you could look into the usage of the Kalman filter!