Terminology - Kauai Labs navX-MXP User Manual

Robotics navigation sensor
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Guidance
Best Practices
If a short occurs between any of the MXP Expansion I/O pins, the POWER led on the RoboRIO
will turn red, and the navX-MXP circuit board will not receive power.
To protect against accidental shorts, Kauai Labs recommends a protective enclosure that at
least partially encases the MXP I/O pins, such as the
MXP.
9) If possible, mount the navX-MXP circuit board near the
center of rotation
Since navX-MXP measures rotation, errors in the measured angles can occur if the navX-MXP
circuit board is mounted at a point not near the robot center of rotation. For optimal results, the
navX-MXP circuit board should be mounted at the robot's center of rotation. If the navX-MXP
circuit board cannot be mounted near the robot's center of rotation, the offset from the center of
rotation can be used to correct the yaw angle.
10) Use OmniMount
By default, the navX-MXP's motion processing requires the unit be mounted horizontally,
parallel to the earth's surface; the yaw (Z) axis should be perpendicular to the earths surface.
If your RoboRIO is mounted vertically, you will need to enable the
to get reliable, accurate yaw (Z) axis readings.
11) Learn how the sensor behaves by using the navXUI
The
navXUI
provides insight into the key navX-MXP features, and can help debug issues you
may encounter when integrating navX-MXP onto your robot. Running this user interface is
highly recommended for anyone using navX-MXP. You can even run the navXUI while your
robot is simultaneously communicating with the navX-MXP circuit board via the TTL UART, I2C
or SPI interfaces.
Several terms used throughout the navX-MXP libraries and documentation may not be
commonly understood and are defined herein.
Basic Terminology
A working knowledge of the following Basic Terminology is highly recommended when working
with navX-MXP or any other Inertial Measurement Unit (IMU).
if navX-MXP is not mounted horizontally

Terminology

"lid"-style enclosure
created for the navx-
"OmniMount"
feature in order
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