----- Original Message ----- From: "Peter L. Peres" > RMS of sine = 0.707 peak of sine. Use a peak detector with an opamp and > diodes and divide the output by 0.7 using resistors. Regarding this division by 0.7 using resistors, how is it done ? -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics