@luismipv have you tried the object [selector~] from the Cyclone library?

Hi, I got the same issue with an Arduino and it seems that nobody got a solution, so I made one myself:

for this you'll need the cyclone library. Basically a way to smooth input values is calculating a portion of the values constantly up to a desired size, in this pd patch you calculate the average value each 1000 values, of course this is useful if you are getting input values fast, but it can be configured for your own needs.

I hope this helps anybody having this issue.