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  3. Best method to measure power consumption for smart plug / light switch etc..

Best method to measure power consumption for smart plug / light switch etc..

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  • A Offline
    A Offline
    ahmedadelhosni
    wrote on last edited by
    #1

    Hello,

    What do you use to measure the power consumption ? accurate, easy, cheap and don't break down easily.

    I know about the ACS712 but the reviews in sparkfun are not so good : https://www.sparkfun.com/products/8883

    What do you think ?

    Y 1 Reply Last reply
    0
    • A ahmedadelhosni

      Hello,

      What do you use to measure the power consumption ? accurate, easy, cheap and don't break down easily.

      I know about the ACS712 but the reviews in sparkfun are not so good : https://www.sparkfun.com/products/8883

      What do you think ?

      Y Offline
      Y Offline
      Yveaux
      Mod
      wrote on last edited by
      #2

      @ahmedadelhosni I just love the INA219 :+1:

      http://yveaux.blogspot.nl

      A 1 Reply Last reply
      0
      • gohanG Offline
        gohanG Offline
        gohan
        Mod
        wrote on last edited by
        #3

        That is a current sensor, so unless you take power factor into account, your measurements will not be very precise. I think the easiest way would be to get a sonoff pow, unless you really want to go DIY

        A 1 Reply Last reply
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        • Y Yveaux

          @ahmedadelhosni I just love the INA219 :+1:

          A Offline
          A Offline
          ahmedadelhosni
          wrote on last edited by
          #4

          @Yveaux said in Best method to measure power consumption for smart plug / light switch etc..:

          INA219

          Is this for AC loads ? I guess this is for DC

          Y 1 Reply Last reply
          0
          • gohanG gohan

            That is a current sensor, so unless you take power factor into account, your measurements will not be very precise. I think the easiest way would be to get a sonoff pow, unless you really want to go DIY

            A Offline
            A Offline
            ahmedadelhosni
            wrote on last edited by
            #5

            @gohan sonoff does power measurements ?

            I need DIY for my projects. I don't want to use already manufactured products.

            1 Reply Last reply
            0
            • gohanG Offline
              gohanG Offline
              gohan
              Mod
              wrote on last edited by
              #6

              https://learn.openenergymonitor.org/electricity-monitoring/ctac/how-to-build-an-arduino-energy-monitor

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              • A ahmedadelhosni

                @Yveaux said in Best method to measure power consumption for smart plug / light switch etc..:

                INA219

                Is this for AC loads ? I guess this is for DC

                Y Offline
                Y Offline
                Yveaux
                Mod
                wrote on last edited by
                #7

                @ahmedadelhosni yup. You didn't say this was a requirement ;-)

                http://yveaux.blogspot.nl

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