Increasing accuracy of a HMC6352 compass module

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i've got hmc6352 compass module https://www.sparkfun.com/products/7915  that's , running correctly (from programming perspective) i'm bit disappointed it's accuracy , repeat-ability. module mounted on jump leads couple of inches away arduino itself  (hopefully avoiding stray magnetic fields). each time start gives value varies +- 5 degrees previous reading (even when hasn't been moved). if move through 90 degrees, , again same position different value +-20 degrees.

is normal performance, or should able better performance it? better off 2 identical modules , average results?  or tilt compensated or triple axis 1 worth buying?

or maybe figures i'm quoting pretty , should stop moaning?

cheers

the datasheet says specs are:

heading accuracy: 2.5 degrms
heading repeatability: 1.0 deg

perhaps yours defective.


Arduino Forum > Using Arduino > Project Guidance > Increasing accuracy of a HMC6352 compass module


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