We don’t have much personal experience with DOF hardware, but this Arduino library which reads and compensates for three-axis magnetometer and accelerometer data looks very impressive. It sho… ...

My choice for accelerometer is a 3-axis, ±3 g accelerometer breakout from Adafruit, their ADXL335. It has one analog output for each axis. Since I’m measuring three joints that means three ...

In the U.S., we might say someone is 5 feet 11 inches tall (measuring distance) ... Acceleration can be measured with a small electronic device called an accelerometer.