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when toggle format what by license comment
Sep 26, 2014 at 18:45 comment added BowlOfRed Depends on what other info is available. With either GPS or wifi data, you can get approximate position and do a declination lookup to correct.
Sep 26, 2014 at 18:35 comment added Carl Witthoft I sure hope the vast unwashed masses don't depend on this magnetometer to find true North! (right now, in New England, it's off by over 16 degrees)
Sep 26, 2014 at 18:00 history edited BowlOfRed CC BY-SA 3.0
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Sep 26, 2014 at 16:19 history answered BowlOfRed CC BY-SA 3.0