MicroView Digital Compass
Contributors:
AGlass0fMilk
AGlass0fMilk 
Resources and Going Further
There are a many more cool projects you can make with the MAG3110 sensor. If you combine the MAG3110 with a few other sensors, you can make a variety of projects that involve location and orientation sensing.
Check out Shawn Hymel's Adventues in Science: Using a Magnetometer as a Compass and example code for ideas:
For more sensor fun, check out these other great SparkFun tutorials:
APDS-9960 RGB and Gesture Sensor Hookup Guide
Getting started guide for the Avago APDS-9960 color, proximity, and gesture sensor.
SparkFun BME280 Breakout Hookup Guide
A guide for connecting the BME280 sensor to a microcontroller, and for using the SparkFun Arduino library.
MLX90614 IR Thermometer Hookup Guide
How to use the MLX90614 or our SparkFun IR Thermometer Evaluation Board to take temperatures remotely, over short distances.
Qwiic PIR Hookup Guide
Get started passively monitoring motion using the Panasonic EKMC and EKMB sensors with the SparkFun Qwiic PIR.