I have been working on a mobile project that needs to know the direction of true north. I am using the Venus GPS from Sparkfun which according to the datasheet does not populate the declination field. The alternative seems to be to try to compute the declination and then use a compass to find magn…

[SOLVED] Obtaining Magnetic Declination

wwbrown October 21, 2012, 2:47pm 11

Maybe the easiest thing to do is to get g different GPS that outputs the declination.

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