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I would like to know what other functionality is provided by the magnetometer inside android devices besides allowing applications to display a compass. Can an app do anything else with it besides display compass functionality?

  • Programming related questions are off-topic as per FAQ – Flow Apr 7 '13 at 10:52
  • This question is not about programming. It's about what programmers can achieve, that is, about what the device can do. – user2239505 Apr 7 '13 at 13:27
  • Edited and reopened – Flow Apr 7 '13 at 14:45
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Magnetometer reports the magnetic strengths on the three axes of the phone. Can work as compass , metal detector and can also be used to increase mapping accuracy.

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The magnetometer measures magnetic field, so it can do anything a magnetometer can do. Other than compass, the magnetometer can be used as a metal detector for instance.

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