The MPU magnometer sensor is giving me all zero values while the LSM seems to be working fine, any tips? After using a magnet to check the orientation of the sensors it seems that they do not conform to the righthand rule. It looks like positive x is towards the ethernet port, positive y is towards the hdmi port, and positive z is up. Is this correct?
I am calibrating the magnomters (LSM and MPU) and I need to know what the reference low and high are of these sensors. I am assuming its -1500 to 1500, is this correct?
And is the GPS antenna you sell unique? I would like get one with a longer antenna, can I buy a different antenna with a longer cable (to be mounted on top of a car), or should I just purchase a longer cable?