[Tinyos-help] Power consumption evaluation

[Eric Keller]

On Thu, Oct 2, 2008 at 1:41 PM, Hui Kang <hukang at ic.sunysb.edu> wrote:
> Hi, Eric,
> How about directly reading the voltage from the component VoltageC? Does
> this give less precise values, compared with the NI acquisition board?
>
> - Hui Kang

VoltageC tells you the voltage, not the current, so it will not work.  You could
possibly read a shunt resistor voltage, but it seems like it would have to be
on the power side instead of the ground side.  Then you could do it with
a couple of voltage divider.

I'd like to be able to turn off the processor and it seems like the ref voltage
goes a little funny when you do that.   Plus the measurement and associated
communications would interfere with the readings.
Eric