Hi all,
I'm still having issues with this, so I will try to provide some extra
information.
My application periodically sends a packet, sleeps for 200ms, then wakes up and
listens 10ms (this 200ms - 10ms process is repeated 3 times).
A current measurement of 2 periods of this behaviour can be seen here:
http://www.flickr.com/photos/rcatteeu/3376169144/
As can be seen, the radio is powered off at the right times.
A detailed view of the radio-off state can be seen here:
http://www.flickr.com/photos/rcatteeu/3375351407/
The scale on the picture is a 4095-unities scale.
4095 maps on 70mA, so every unit is about 17uA.
As can be seen, the current use never drops under 170 uA.
Also I have these strange peaks of about 100 = 1.5 mA.
I don't use leds, sensors or so in the application, just some timers.
I think the 170 uA is rather high and I cannot explain this high current use or
the strange peaks.
Is it possible that this still is TinyOS related. Do I forget to power
something off or so?
Any help on this would be greatly appreciated.
regards
Ruben
From: [email protected]
To: [email protected]
CC: [email protected]; [email protected]
Subject: RE: [Tinyos-help] current consumption with radio turned off
Date: Wed, 18 Mar 2009 22:28:58 +0000
Hi again,
The platform I'm working on is the TmoteSky platform.
With the radio turned off, the current I'm measuring now is about 136uA.
Do I have to take some special steps in the code to get this in the order of
10-20uA, or should the MCU auto-choose the lowest power state?
regards
Ruben
> Date: Fri, 13 Mar 2009 01:29:22 -0400
> From: [email protected]
> To: [email protected]
> CC: [email protected]
> Subject: Re: [Tinyos-help] current consumption with radio turned off
>
> Hi!
>
> On Thu, 12 Mar 2009, Ruben Catteeuw wrote:
>
> >
> > Hi all,
> >
> >
> >
> > It seems I can't add a jpg in attachment. Sorry about the previous mail.
>
> Can you post it somewhere (flickr, facebook, etc) and give a link to it?
>
> > Anyway, my question stays the same:
> >
> > Why is the current consumption with the radio off this high (2mA)? I
> > only have 2 timers running.
> >
> > Can I get this any lower?
> >
>
> What type of motes are you using? For Telos Sky I'm getting something < 10uA.
>
> --
> Razvan ME
>
> > From: [email protected]
> > To: [email protected]
> > Date: Thu, 12 Mar 2009 19:58:12 +0000
> > Subject: [Tinyos-help] current consumption with radio turned off
> >
> >
> >
> >
> >
> >
> >
> > Hi all,
> >
> > Attached is a screenshot of the current consumtion while running my
> > application on a telos mote.
> > The radio is off, then turned on, a packet is sent and the radio is turned
> > back off.
> > I wonder why the current consumption is about 2mA when the radio is off. I
> > only have some timers running.
> > I would like this current to be in the order of uA. How can I accomplish
> > this?
> >
> > thx a lot to anyone who can help me out!
> >
> >
> >
> >
> >
> >
> > Installeer gratis de nieuwe Messenger!
> > _________________________________________________________________
> > Installeer gratis de nieuwe Messenger
> > http://download.live.com/messenger
Waarom betalen om foto's en video's te bewerken, e-mails te lezen, te bloggen
enz…? Met Windows Live is dit allemaal gratis!
_________________________________________________________________
Waarom betalen om foto's en video's te bewerken, e-mails te lezen, te bloggen
enz…? Met Windows Live is dit allemaal gratis!
http://www.microsoft.com/belux/nl/windows/windowslive/default.aspx
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