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  • Overall Rating: 4
  • Price: 5
  • Quality: 5
  • Ease Of Use: 3
  • Usefulness: 4
Very useable magnetometer – GY-272 3-Axis HMC5883L Compass Module Reviews

posted by ggutshal on 11/07/2012 Certified Owner

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.
Other:
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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