[Tinyos-help] current consumption with radio turned off

[Ruben Catteeuw]

Hi all,

I had an #include "printf.h" in my application.
This activated the usb circuitry and apparently this gives a 2mA current use.

thx Urs for the reply which gave me an idea where to look!

regards

Ruben

> Date: Fri, 13 Mar 2009 07:30:49 +0100
> From: uhu at gmx.ch
> To: rubencatteeuw at hotmail.com
> CC: tinyos-help at millennium.berkeley.edu
> Subject: Re: [Tinyos-help] current consumption with radio turned off
> 
> Hi Ruben,
> 
> 2mA could be an LED that you have turned on. If you have a telosb mote 
> and you have recently programmed it or communicated over USB, then the 
> USB circuitry could be turned on. If you have a sensor board connected, 
> maybe it is using power (most sensor boards have options for explicitly 
> turning of sensors).
> 
> To make further guesses, we would need additional information:
> - What hardware do you use (mote, sensors, programming board)?
> - What is your test setup? (is the power measured over the battery 
> connector or some other connector?)
> 
> Cheers,
> Urs
> 
> Ruben Catteeuw wrote:
> > 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!

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