Hi,

I have a couple of MicaZ motes and MTS310 sensor boards. I was trying to take magnetic sensor readings from HMC1002 sensor.

From top to bottom level components are :

MagXC.nc -> MagReadP -> MagConfigP -> MagP, MicaBusC

MagYC.nc -> MagReadP -> MagConfigP -> MagP, MicaBusC

Thus, it seems that i sholud use MagXC and MagYC generic configurations.

I can use read interfaces provided by those generic configurations as in the SensorMts300C.nc:

provides{

interface Read as MagX; //!< magnetometer sensor

interface Read as MagY; //!< magnetometer sensor}

However, MagXC and MagYC generic configurations also provide Mag interface for which there is the following command in the Mag.nc :

/*

* The MagSetting inteface provides an asynchronous mechanism for

* setting the gain offset for the Magnetometer on the mica sensorboard.

* This is particularly useful in calibrating the offset of the Magnetometer

* such that X and Y axis can stay in the center for idle signals.

* If not calibrated, the data you get may rail. (railing means

* the data either stays at the maximum (~785) or minimum (~240)).

*

* The gain adjust has 256 steps ranging from 0 to 255.

*

*/

Thus, i should somehow use this interface in my application to make some settings. However, i don't know how and where (in the code) to make the gainadjust...etc...stuff. I was wondering whether there are any TinyOS-2.x code using the interfaces that i mentioned above and taking magnetic sensor readings, or not.

Could anyone please help me with this issue ?

Thanks in advance,