[sdiy] Digital filtering of pot input

mskala at ansuz.sooke.bc.ca mskala at ansuz.sooke.bc.ca
Fri Dec 2 20:03:52 CET 2016

On Fri, 2 Dec 2016, Ben Bradley wrote:
> These are good suggestions, but I always like the hardware idea of
> keeping the noise as low as possible at the ADC pin. Fortunately it's
> a slowly varying signal. so a 0.01uF or even 0.1uF cap right between

Unfortunately, I think most of the noise on these microcontrollers comes
from inside the chip itself, and I'm not sure any amount of filtering and
careful layout work outside the package, will remove it.

Matthew Skala
mskala at ansuz.sooke.bc.ca                 People before principles.

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