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Current sensor for arduino

Discussion in 'Sensors and Actuators' started by LOUIZY, Dec 11, 2017.

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  1. LOUIZY

    LOUIZY

    2
    0
    Dec 11, 2017
    Hey, I m part of solar car project, we are making a car that runs using only solar energy, the energy is stocked in a battery, and I need to monitor the current that enters the battery (output of the solar panels/MPPT), I m looking for a current sensor that can mesure current from 10A to 15A using hall effect, I was using the LEM LA 25-p current sensor, but its output is not suitable with the arduino and unlike what i need this sensor requires a symmitrical input voltage (+12v -12v), I m opened to any suggestion,
    here is the link for the LEM current sensor I have:

    http://www.lem.com/docs/products/la_25-p.pdf
     
  2. hevans1944

    hevans1944 Hop - AC8NS

    4,475
    2,085
    Jun 21, 2012
    Try one of these. Costs a little, does a lot, lasts a long time... easy to interface to PICs or Arduino. There is a (longish) thread here at EP on how to use an Allegro current sensor with a PIC microcontroller for AC sensing, but DC sensing is even easier. Suggest you investigate using the Allegro ACS723.
     
    LOUIZY likes this.
  3. Minder

    Minder

    2,955
    624
    Apr 24, 2015
    Similarly the ACS712 is $1.50 on ebay with board and terminals.
    112275500486
    M.
     
    LOUIZY likes this.
  4. LOUIZY

    LOUIZY

    2
    0
    Dec 11, 2017
    thank you, that was helpful
     
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