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  • Very useable magnetometer

    posted by ggutshal on 11/07/2012
    0

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

    Pros:

    Very small form factor. I2C interface so it doe not consume too many IO pins. The HMC5883 magnetometer is a pretty standard part in the microcontroller/robotic community. Libraries exist for arduino and netduino

    Cons:

    math is required to use this magnetometer as a compass. Calculating headings requires some complex higher order math functions that may not exist on all platforms, forcing you to code those calculations at a much more intimate level, especially if your microcontroller does not support floating point math.

    OtherThoughts:

    none

    Bottomline:

    Should be very useful for robotics, unmanned aerial vehicles or other implementations requiring the detections of orientation. Alternatively this module could be used in any application that calls for a highly sensitive 3d magnetometer.

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