Several people have asked about the DC accuracy of the Arduino ADC when used in my data logging applications at slow sample rates. Here are my results of some "hobby level" measurements of the Arduino ADC. One question is how important is the ADC clock rate. I did measurements for an ADC clock rat…

Static Accuracy Tests of the Arduino Internal ADC.

system August 24, 2012, 10:48pm 2

This explains why we can sample audio accurately at 40khz.
How long does it take to sample 1x at PS16?

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