[Tinyos-devel] more bugging about current consumption on MicaZ in tinyos-2.x

[Razvan Musaloiu-E.]

Hi!

On Tue, 18 Jul 2006, Joe Polastre wrote:

> The ATMega128L used on the MicaZ has a very wide sleep current.  Some
> customers have reported as low as 5uA sleep current while others have
> reported as high as 50-500uA sleep current.  The processor uses a very
> archaic design relative to the new ATMega's and the superior TI MSP430
> processors.

I didn't know about this thing. :( Another strange thing is that some
MicaZ from the same batch running some old code burned last year still
show a 0.04-0.07mA. When I write anything on them the current jumps to
0.14mA. Is this behavior also "normal"?

Once again thank you for putting up with all my bugging! :-)
Razvan ME

> On 7/17/06, Razvan Musaloiu-E. <razvanm at cs.jhu.edu> wrote:
> > Hi!
> >
> > On Mon, 17 Jul 2006, Philip Levis wrote:
> >
> > > On Mon, 2006-07-17 at 15:48, Razvan Musaloiu-E. wrote:
> > > > Hi!
> > >
> > > >
> > > > I'll try to find a better one and check again. My problem is the same
> > > > multimeter shows very low values for a Telos (7.1uA for Null) so that's
> > > > why I haven't blame it so far.
> > > >
> > > > Once again, thank you very much!
> > >
> > > Hrm, that is weird.
> > >
> > > One thought: do you have any sensors attached to the mote? It might be
> > > that it's leaking current there. I did not have any sensors attached.
> >
> > Nope, no sensors. Just a bare MicaZ.
> >
> > --
> > Razvan ME
> >
>