Gyroscope Magnetometer Accelerometer Stand Still Readings

[parag]

Hello

I'm using GY-80(ADXL345, L3G4200D, HMC5883L) module in my project. I have some queries for setting offsets.

As the case in accelerometer when the device is kept stand still on a flat surface ,ideally it should read X : 0, Y : 0, Z : 980.
Similarly what are the values I should get for Gyroscope and Magnetometer.
Are X : 0, Y : 0, Z : 0 for Gyroscope and Magnetometer. ??

Please help me out.

 

[Alec_t]

Don't the datasheets for the modules give the necessary info?

 

[davenn]

As the case in accelerometer when the device is kept stand still on a flat surface ,ideally it should read X : 0, Y : 0, Z : 980.

I think you will find that it is X=0, Y=0, Z=0

that is the acceleration due to 1g is taken into account

 

[parag]

Don't the datasheets for the modules give the necessary info?

The HMC5883L data sheet says ..
during self test if the configuration register B is set to 0xA0 (Gain=5), values around +452 LSb (1.16 Ga * 390 LSb/Ga) will be placed in the X and Y data output registers and around +421 (1.08 Ga * 390 LSb/Ga) will be placed in Z data output register.

Is this means If I'm not getting these mentioned values then I should set bias/offset to get these values ?