Magnetometer Recommendations?

Looking for a magnetometer that fits the following criteria. Any recommendations would be greatly appreciated!

  1. I need one that does not need to be 100% flat to work. (will be on a RC boat that could bounce around in the wind chop)

  2. does not need manual calibration each time it is turned on. For my application it is not really feasible to turn the device 360 degrees to calibrate like you would a drone.

  3. Updates around 10 times per sec would be acceptable

I found this one, but $200? Is this due to the PCB shortage?

A manometer or a magnetometer?

magnetometer

The modern consumer grade magnetometers are all about the same. Pololu, Sparkfun, Adafruit have a selection. Any 9DOF sensor has one.

  1. With an accelerometer, you can perform tilt compensation. Otherwise, a magnetometer must be level to be used as a compass.

  2. You must calibrate a magnetometer at least once, in its final resting place, or it won't work as a compass. Store the correction factors and offsets in your program to be applied at power on.

  3. 10 updates/second is slow. Expect 100 at least.

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