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Overview
Frequently-asked Questions
How does navX2-MXP improve upon the "Classic" navX-MXP sensor?
Improved Sensors: navX2-MXP replaces the older MPU-9250 9-axis IMU with the
newer 6-axis
Microelectronics; these modern sensors feature significantly lower noise, greater stability,
higher accuracy and improved shock resistance than the now-obsolete Invensense
MPU-9250 found in the "Classic" navX-MXP sensor. Notably,
navX2-MXP's
has far lower sensor noise characteristics, and handles higher rotation speeds (4000
degrees/second).
Improved Processing Power and Sensor Fusion: navX2-MXP features an upgraded
180Mhz onboard 32-bit floating-point microcontroller which doubles the computation
power found on the "Classic" navX-MXP. This additional computation power enables
navX2-MXP to introduce a new Kalman Filter-based algorithm with improved accuracy,
running at a blazing fast 416Hz update rate and processing +/- 4000 degree/second
gyroscope and +/-16G accelerometer data.
As a result of these enhancements:
For more details, please review the
If I currently use the "Classic" navX-MXP, how easy is it to upgrade to the new navX2-MXP?
Simply swap out the existing navX-MXP, replacing it with the new "Generation 2" navX2-MXP.
navX2-MXP is identical to navX-MXP from both a hardware and software interface perspective; it's a
"drop-in replacement" with enhanced performance.
ISM330DHCX
IMU and
ISM330DHCX
Startup time is reduced to only 5 seconds
Pitch/Roll accuracy is increased to 0.5 degrees
Errors due to Extreme inertial events are minimized: The combination of
increased 4000 degree/second gyroscope range, 16G accelerometer range and high-
speed Kalman Filter based on this data greatly minimizes Yaw angle errors due to
vibration and high-speed impacts
Velocity Measurement accuracy is improved: Lower accelerometer noise levels
and stability enable very accurate Linear Velocity Vectors.
Displacement Estimate accuracy is improved: Lower accelerometer noise levels,
improved "zero-velocity update" processing, and higher-speed Kalman Filter
updates increase the accuracy of displacement estimates, although error levels are
still high enough that they are referred to as "estimates" rather than
"measurements".
LIS2MDL
Magnetometer from ST
IMU is an industrial-class sensor which is extremely stable,
navX2-MXP Technical
Specifications.
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