Adafruit Industries Adafruit Industries FLORA Accelerometer/Compass Sensor - LSM303 v1.0
Add motion and direction sensing to your wearable FLORA project with this high precision 3-axis Accelerometer+Compass sensor. Inside are two sensors, one is a classic 3-axis accelerometer, which can tell you which direction is down towards the Earth (by measuring gravity) or how fast the board is accelerating in 3D space. The other is a magnetometer that can sense where the strongest magnetic force is coming from, generally used to detect magnetic north. By combining this data you can then orient yourself.
Adafruit Industries FLORA Accelerometer/Compass Sensor - LSM303 v1.0
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