Converting PULSIN reading to RPM, from PC Fan?

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  1. - 19th October 2020, 08:08 #1
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    Default Re: Converting PULSIN reading to RPM, from PC Fan?

    I already tried COUNT. Returns very low number of pulses - for 3700rpm it returns something like 120. Absolutely not precise.
  2. - 19th October 2020, 11:12 #2
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    Default Re: Converting PULSIN reading to RPM, from PC Fan?

    There is this Tip n Tricks pdf that has #5 about RPM measurment using CCP in combination with #1 and #2 tips.

    Ioannis

    41214aCCP Tip n Tricks.pdf
    www.signalcom.gr
  3. - 19th October 2020, 12:35 #3
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    Default Re: Converting PULSIN reading to RPM, from PC Fan?

    All my PWM/CCP channels are busy
    Too bad they don't make chips with 8-16 PWM outputs
  4. - 19th October 2020, 12:44 #4
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    Default Re: Converting PULSIN reading to RPM, from PC Fan?

    In your case you need an input.

    Can you multiplex with another CCP input?

    Ioannis
    www.signalcom.gr
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