gradimeter with qmc5883?

[cvele]

qmc5883 is realy cheap compas module for Arduino. With propriet library it can be easy used as a gradiometer.
Just for instance, here is a little example of usage .
Just for instance!

[cvele]

Next will be dan average of redaings, because it is very eratic , and be representid as "sensorUp.read" or "sensor Lo.read". I hope this will help stable data reding.

[cvele]

OK-gradiOmeter, mea culpa!

[Atul Asthana]

Ha any one built a gradiometer using QMC5883? What was the performance (accuracy, temperature drift/error etc.) ?

QMC5883 datasheet says a heading error of 1? to 2?. Does this drift with temperature ?what

[Atul Asthana]

Thanks
Is there a stable version of QMC5883?

Next will be dan average of redaings, because it is very eratic , and be representid as "sensorUp.read" or "sensor Lo.read". I hope this will help stable data reding.

[Atul Asthana]

Is HMC5883L more stable?