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Arduino Wearable Projects by Tony Olsson

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The accelerometer, compass, and gyroscope

In the following example, we will try out an accelerometer, which is a device used for sensing g-force. The accelerometer can sense movement in different directions. Normally, there are two types of accelerometer: the 2 axes and 3 axes. The 2 axes measures in two directions, left to right and front to back, and these directions are often named as the x axis and y axis. The 3 axes accelerometer also measures in a z axis, which is up and down. The accelerometer measures movement relative to its own position, which means that when you move it, it measures the g-force in the direction you are moving it.

The sensor used in this example is the FLORA accelerometer/compass/gyroscope, which is actually three sensors ...

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