3D Robotics

Magnetometer primer

A nice intro to magnetometers from Sparkfun. A bit basic, but good if you've never worked with one before.

"If you're building an autonomous vehicle or a hand-held GPS (or any other device where direction might be important), a digital compass (sometimes called a magnetometer) is a great little sensor to add to your design. However, if you haven't played around with them much, you might not know which type of compass is good for your specific project (for example, do you need tilt-compensation?)."

We also sell one optimized for UAV/ArduPilot use here.

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