I've modified JustFATLogging and the Shimmer provided MATLAB code to collect
Gyro readings. I added the Gyro using:
call GyroInit.init();
call GyroStdControl.start();
call shimmerAnalogSetup.addGyroInputs();
For debugging I decided to compare the data collected by JustFATLogging and
Shimmer's 9DOF Calibration utility. It seems that when I position the Shimmer
on its face (logo side) JustFATLogging thinks that it is the -Z acceleration
axis (9DOF correctly shows that it is the +Z).
When I check the gyro is seems that JustFATLogging and 9DOF do not agree on
which is the X and which is the Y axis.
In MATLAB I am reading the data by:
sensorsData = fread(fid, [NUMBER_OF_CHANNELS,Inf], 'uint16');
accelx = sensorsData(1,:);
accely = sensorsData(2,:);
accelz = sensorsData(3,:);
gyrox = sensorsData(4,:);
gyroy = sensorsData(5,:);
gyroz = sensorsData(6,:);
What am I doing wrong?
Thanks,
Rahav
Rahav Dor
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