Reply To: Question about the compass_tutorial01.c

[Mark Williams]

Hi…. I am so sorry you are having a trouble.  this would be the first I have heard of a compass not working.  Ill have to ask my colleagues to see if they have seen this before.

 

In the mean time, can you do a test?
Can you remove the current print statement from compass_tutorial03.c
and put in the below print statement.

        while(1){
                readMAG(magRaw);
                printf("Raw,%i,%i,%i,",magRaw[0],magRaw[1],magRaw[2]);
                //Apply hard iron calibration
                magRaw[0] -= (magXmin + magXmax) /2 ;
                magRaw[1] -= (magYmin + magYmax) /2 ;
                magRaw[2] -= (magZmin + magZmax) /2 ;
                printf("Cal,%i,%i,%i,",magRaw[0],magRaw[1],magRaw[2]);
                //Apply soft iron calibration
                scaledMag[0]  = (float)(magRaw[0] - magXmin) / (magXmax - magXmin) * 2 - 1;
                scaledMag[1]  = (float)(magRaw[1] - magYmin) / (magYmax - magYmin) * 2 - 1;
                scaledMag[2]  = (float)(magRaw[2] - magZmin) / (magZmax - magZmin) * 2 - 1;
                printf("Rscaled,%f,%f,%f\n",scaledMag[0],scaledMag[1],scaledMag[2]);

 
recompile and then start the program again, rotate the compass 180 degrees and send the output to sales@ozzmaker.com. please also include you calibration values
 

 

 

Mark --OzzMaker.com --