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MotionBox

cpscotti edited this page · 12 revisions

Motion Box

Introduction & Contents:

To help anyone looking into the data from the motion box/IMU (Inertial Measurement Unit) it's probably really cool to give a brief explanation on the sensors in there.

The motion box contains a I2C bus that connects the arduino to three different sensors:

All the values are captured digitally through the I2C bus from this sensors (except for pre-US OPEN data when the ADXL335 was used; in those cases the reading was made using arduino's ADC).

The orientation of this sensors on the board vary a little bit depending on how the motion box is mounted on the board; that sometimes changes depending on the rider's stance.

Axis orientations/disposition

Better than a thousand words: Axis are spread around only for visibility, all origins are approximately in the centre of the motion box

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