[Tinyos-help] Problem with Temperature Sensing using MTS300 withmica2

[Giri Baleri]

The MTS300/310CBs use a different power control line (PW0) for Temp
sensor as compared to MTS300/310CA (INT2). The reason was to free up
INT2 line for radio control for MICAz.
It sounds like you are using CA code on CB hardware and hence the Temp
sensor never gets turned on.

The software modification involves changing one line of code.
In sensorboard.h file of the app, change 
	TOSH_ALIAS_PIN(TEMP_CTL, INT2) to TOSH_ALIAS_PIN(TEMP_CTL, PW0) 

Regards,
Giri



-----Original Message-----
From: tinyos-help-bounces at Millennium.Berkeley.EDU
[mailto:tinyos-help-bounces at Millennium.Berkeley.EDU] On Behalf Of
Michael Schippling
Sent: Thursday, February 08, 2007 11:24 AM
To: Nuru Yakub Othman
Cc: tinyos-help at Millennium.Berkeley.EDU
Subject: Re: [Tinyos-help] Problem with Temperature Sensing using MTS300
withmica2

I would first check that there really is a temp sensor installed.
If I recall my perusal of the MTS specs correctly it's not fully
populated...

MS


Nuru Yakub Othman wrote:
> Hi,
> 
> We have received the xbow classroom kit and are making some trials. We

> are facing a problem in sensing temperature as it appears to be giving

> a constant value .. never changes even when we put the sensor close to

> a heater with high temp.
> 
> We have tried with the XSensor application, and use xlisten to read 
> the output. The light and sound values are OK, but the temperature 
> stays at
> -273.15 Celcius, absolute zero.
> 
> We also modified OscilloscopeRF to sense temperature, the raw value on

> the graph stays constant at -7.
> 
> It looks like the sensor is not really sensing. We tried with several 
> MTS300CB sensor modules with same results.
> 
> Can someone help as to what we might be missing? Is there a switch or 
> anything that should be enabled?
> 
> I don't think the problem is with the code, but I can send the code if

> required.
> 
> 
> Thank you in advance.
> 
> //Nuru.
> 
> 
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