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

  • 1
    \$\begingroup\$ There is no shortage of magnetometers on the market. \$\endgroup\$ – Nick Alexeev Aug 6 '15 at 20:06

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.

| improve this answer | |
  • \$\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

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.