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I have an application to sense magnetic north and position. GPS works well for position but cannot determine orientation without spinning the object 3 times. My application is stationary and I cannot spin anything. Is there a magnetic sensor that can detect the earth's magnetic north pole? Thanks, Stu

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    \$\begingroup\$ There is no shortage of magnetometers on the market. \$\endgroup\$ – Nick Alexeev Aug 6 '15 at 20:06
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A single GPS receiver by itself cannot determine orientation under any circumstances.

I don't know where you got the "spinning the object 3 times", but that sounds more like the calibration procedure for a magnetometer.

There are plenty of 2D and 3D magnetometers available, as well as "9 DOF" sensors that integrate accelerometers, rate gyros and magnetometers into a single package.

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  • \$\begingroup\$ Dave is correct. GPS determine a location. To use them for direction multiple samples are taken whilst moving and the direction is inferred from the change in position. \$\endgroup\$ – BenG Aug 6 '15 at 19:40

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