Voltmeter for computer

**vincenttor** · 12-31-2008, 10:22 AM

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

**vincenttor** · 01-03-2009, 12:43 PM

i guess this is a strange idea that there has been no answer yet
think im going to buy that device then

**NiSlo** · 01-03-2009, 03:38 PM

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.

**2k1Toaster** · 01-03-2009, 05:04 PM

The Fusion Brain reads voltage, that is what it does.

**Saab9-5** · 01-05-2009, 12:15 AM

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 - Update my first hardware (Serial Voltmeter).Add two new functions.

**koolmoedee** · 01-05-2009, 02:03 AM

this is what i did

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

**Lukeyson** · 01-05-2009, 02:26 AM

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

**TexasAggie** · 01-07-2009, 01:52 AM

Originally Posted by koolmoedee

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!

**koolmoedee** · 01-07-2009, 02:08 AM

Originally Posted by TexasAggie

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
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