[Tinyos-help] Any help with computing the energy of the sensors!

[Jacob Sorber]

If you aren't afraid of a little hardware work, you can also use a fuel
guage IC like the DS2770 from Maxim/Dallas.  That will give you better
accuracy, if you really need it.  If you approximate battery energy using
voltage, just keep in mind that it is not linear and that it is different
for each battery.  You should either check the battery specs, or estimate
the curve experimentally.

Jacob Sorber

On 1/18/07, Michael Schippling <schip at santafe.edu> wrote:
>
> If you mean battery energy, you probably can't because there is no
> provision for measuring current draw. You can approximate it with
> the battery voltage and knowledge of the discharge characteristics.
> I also recently suggested measuring the voltage before/during doing
> something that draws a lot of current.
>
> MS
>
>
> paul jhon wrote:
> > Hello,
> >
> > I need to compute the initial energy of the sensors
> > and its remaining energy at every moment.
> >
> > Can you please tell me how to do this in TinyOS2.x?
> >
> > thank you so much for your answer.
> > Paul
> >
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