[Tinyos-help] sensirion tmote sensor issue

Frédéric JOSEPH Frederic.joseph at hlp.fr
Thu Feb 28 02:08:56 PST 2008


Thanks for your answer. Indeed, the issue is caused by the USB power.

Fred

----- Original Message ----- 
From: "Roman Lim" <rlim at ee.ethz.ch>
To: "Frédéric JOSEPH" <Frederic.joseph at hlp.fr>
Cc: <tinyos-help at millennium.berkeley.edu>
Sent: Thursday, February 28, 2008 10:18 AM
Subject: Re: [Tinyos-help] sensirion tmote sensor issue


> are your motes usb- or battery-powered? in the usb-powered scenario, a 
> voltage regulator heats up the pcb and you get slightly higher temperature 
> measurements
>
> roman
>
> Frédéric JOSEPH wrote:
>> Hi,
>>  My project consists in the development of a wireless sensor network 
>> based on Tmote Sky.
>> I have some issues with the sht11 temperature sensor. The temperature 
>> read on sht11 is too high (4-5 °Celsius over the ambiant temperature).
>>  How can I resolve this issue ?
>>  Thanks in advance.
>> Fred
>>
>>
>>
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> 



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