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Voltage Gauge?

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  • Voltage Gauge?

    I am planning a CarPC and wondering if there would be a way to monitor voltage at different points using some sort of software and hardware and where to find it.. What I will be wanting is to monitor voltage at 2 different batteries as well as Alternator Output voltage.. Is possible to do? Thanks for all the help!

  • #2
    Pc scope would might do the trick for you, but it is expensive.
    M10000,256 DDR,80 Gb, PCI TV/Radio, D-Link Radio, PCI Audigy 2, Opus 150W, BU-301, Bluetooth, Wifi, Lilliput 7" Touch, Ifree RF Keyborad, USB 2.0 HUB, 2 Amps 600w 4 ch - 620w 2 ch, 6*9" 4-way(rear), 12" Alpine (Sub), 4" 3 way(front), center missing.

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    • #3
      I wonder if OBD-II can register the voltages?????
      Carputer currently 'ghettoed' into car!!!

      EPIA MII-12000
      Ampie Case with rigged extra USB
      Hitachi 60GB
      Holux GPS mouse with iGuidance 2.0
      Lilliput 7" touchscreen
      Netgear WG121 USB WiFi
      Carnetix P1260

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      • #4
        It will be going in a 93 Ranger so I dont think obdII will work since I dont believe the Ranger has OBDII.. Already thought about that

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        • #5
          Radio Shack was closing out a multi-meter with serial output for dirt cheap a couple years ago, you might check eBay.
          Chrysler 300 - Fabricating
          http://hallert.net/

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          • #6
            have a radio shack digital mm in my hand right now . the catalog # is 22-805
            happy hunting

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            • #7
              They have a new one listed for $70

              PC Interface 46-Range Digital Multimeter

              $69.99 Brand: RadioShack
              Catalog #: 22-812 Model: 22-812

              http://www.radioshack.com/product.as...%5Fid=22%2D812

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              • #8
                You're looking for an A/D converter. You can find PICs these days that have several on board. You'll might have to make up a suitable analog scaling section to interface with car voltages but beyond that it should be fairly smooth sailing.
                2004 4runner

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                • #9
                  Great thanks for the help guys! I am going to go take a look at these things and see if I can figure something out.. Thanks again!

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                  • #10
                    OBD-II does tell you the voltage of your battery. Autoenginuity (the one I use) shows the voltage live - you see a difference when the alternator is running vs. car off with pc on. 13v+ vs. 11-12v...

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