On Thu, 3 Feb 2000 19:01:20 +0200 ekon <ekon@KOSGEB.TEKMER.GOV.TR>
writes:
>
>
>
> Can you help me for TRUE RMS  measurements  with PIC16F877.Are there
> any document about TRUE RMS measurement algorithm.
>

        Well, what I did was read the A/D, square the result and accumulate 256
of these squares. I then took the square root of the high half of the sum
(throwing out the low half, or dividing by 256). The result was the RMS
over the sample period.

Harold



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