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:
LIS3DH Hookup Guide
A guide to connecting the LIS3DH to a microcontroller and using the Arduino library.
CCS811 Air Quality Breakout Hookup Guide
This tutorial shows you how to get data from a CCS811 breakout board with the I2C interface.
Current Sensor Breakout (ACS723) Hookup Guide
Learn how to measure the current consumption of your project using the ACS723 Current Sensor.
Qwiic Proximity Sensor (VCNL4040) Hookup Guide
The SparkFun Qwiic Proximity Sensor is a great, qualitative proximity (up to 20 cm) and light sensor. This hookup guide covers a few examples to retrieve basic sensor readings.