I want to measure the voltage of a 12 volt battery system: two 6 volt golf
cart batteries charged by micro hydro and solar. Remote, unattended. I have
an a2d card with serial interface that used to give me the voltage but it
stopped working. I would like to replace it with a 1wire solution.
I have looked at the DS2438 but as it is a chip I guess I need a breadboard
and at least 1wire and DC connectors, plus the voltage divider.
I was hoping to find a kit or pre-built solution but maybe I could do it
from parts.
Thanks for your reply.
Peter
Northern California
On Sun, Jan 6, 2013 at 6:50 PM, p4trykx <[email protected]> wrote:
> **
> W dniu 07.01.2013 o 02:52 Peter Hollenbeck <[email protected]> pisze:
>
>
> Can someone suggest a a way to measure DC voltage in the range 10 to 14
> volts?
> I know nothing about circuits but do have basic soldering skills and have
> built a few small kits.
> At one location I am using owfs to monitor solar, humidity and, barometric
> pressure using a a Raspberry Pi and HobbyBoards serial master and sensors.
> The voltage sensor would be on a a different Raspberry Pi.
>
> Thank you,
> Peter
>
>
> You can choose something from this
>
> http://para.maximintegrated.com/en/search.mvp?fam=batt_stat&374=1-Wire&tree=master
> I can remember the name but I think that the chip form barometer can
> measure up to 12V.
>
> What are you measuring? You can use a voltage divider(look at wikipedia)
> to lower the voltage for acceptable level not above 12V.
>
>
> --
> p4trykx
>
>
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