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Voltmeter for computer

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  • Voltmeter for computer

    well i got 2 battery's in my car
    and would like to know how much volt's there is in my 1st and 2nd battery

    now i saw on a stock pioneer radio that there is a option that u can see how much power there is in there


    i did found this on the internet but thats not really my intention to put a voltmeasure device in my car a bit a waste of equipment


    can be connected with usb this 1


    it does have some nice logs and stuff just a gadget



    my question was , does anybody has something like this also or the idea to show it on your carpc
    or know the price and adress where to get it

    thanks

    happy new year
    go to my new website:
    http://corsa-t-design.19division.nl

  • #2
    i guess this is a strange idea that there has been no answer yet
    think im going to buy that device then
    go to my new website:
    http://corsa-t-design.19division.nl

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    • #3
      I'm sure the fusion brian has sensors to read voltage (as well as a million other things) or you can look at somethign like the OBDPro's OBD-II interface. As well as reading OBD engine info, it gives you (combined) battery voltage.
      I installed my carpc into my pet Kangaroo, mate.

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      • #4
        The Fusion Brain reads voltage, that is what it does.
        Fusion Brain Version 6 Released!
        1.9in x 2.9in -- 47mm x 73mm
        30 Digital Outputs -- Directly drive a relay
        15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
        Buy now in the MP3Car.com Store

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        • #5
          Mauri designed a simple voltmeter circuit that Guino added support for in Road Runner - http://www.mp3car.com/vbulletin/road...rdware-rr.html. He then later created a modified version - http://www.mp3car.com/vbulletin/road...functions.html.

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          • #6
            this is what i did


            it was $5 off ebay and can be powered from the same source as is's measuring

            1993 Mitsubishi Verada

            My Ride

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            • #7
              ELM327 and J2534 diagnostic tools can measure the voltage supplied to the OBDII port. I wouldn't be suprised if it's a simple option to display it in something like ScanXL or DashCommand.

              User PPE on this forum would know if his software can be used for Voltage monitoring.

              However, this is admittedly a rather large solution to a simple question though.


              Lukeyson

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              • #8
                Originally posted by koolmoedee View Post
                this is what i did


                it was $5 off ebay and can be powered from the same source as is's measuring
                I think i bought the same thing you did but in blue. Did yours come in a blue rectangular box, and the piece itself is like 2.5 inches by like 1 inch ish tall? If so then I need your help in figuring out how to wire them!

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                • #9
                  Originally posted by TexasAggie View Post
                  I think i bought the same thing you did but in blue. Did yours come in a blue rectangular box, and the piece itself is like 2.5 inches by like 1 inch ish tall? If so then I need your help in figuring out how to wire them!
                  Mine was super simple it only had an input (+) and a ground and then i threw a switch in
                  Click image for larger version

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                  1993 Mitsubishi Verada

                  My Ride

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                  • #10
                    Yikes, then this is mine. . . Any idea on how to wire this up?



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                    • #11
                      looks like left pins require a 5v source for power and the right goes to the battery you want to measure did you get any documentation with it?

                      1993 Mitsubishi Verada

                      My Ride

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                      • #12
                        nope none, thats why I got it for like 12 bucks shipped. What is a 5v source and should I be alright just using 18 gauge wire to measure the battery?

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                        • #13
                          Looks like you just need a 5v regulator or just use the power from a USB port (just get the polarity right first!!). oh, and yeah you can use any gauge wire to measure volts as it only requires a small amount of current to read the voltage.

                          Normally automotive type volt meters don't require a separate supply to measure voltage, so it looks like this unit can measure all the way down to 0 volts (providing that 5v is active all the time).

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                          • #14
                            wow thanks for all the reactions,
                            yeah the separate volt meter i have thougt of that
                            but its nicer if its integrated ofcourse in the computer
                            im using centrafuse and got a elm327 scanner also
                            i will try with some other programs to see if i can get the voltage on my computer screen

                            thanks for the response everybody
                            go to my new website:
                            http://corsa-t-design.19division.nl

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