The navX2-MXP circuit board and official firmware provide inertial and magnetic measurements, with a range, accuracy and update rate as described on this page.
Note that certain performance specifications are only valid after Startup Gyroscope/Accelerometer Calibration period, during which time the navX2-MXP circuit board must be held still.
Additional details can be found in the navX2-MXP datasheet.
| Electrical Specifications | |
|---|---|
| Voltage: | 5V DC |
| Current Consumption: | 60 millamps |
| Communications Interfaces: | USB, TTL UART, SPI, I2C |
| Power Connector: | USB and/or 5VDC/GND Pins on MXP Connector |
| Power Source Fail-over: | Automatic switch between USB/MXP Power within 100us |
| USB Connector: | USB Mini-B |
| Motion Processing Performance Specifications | |
|---|---|
| Max. Startup Calibration Period: | 5 seconds (assuming sensor is still during this time) |
| Max. Rotation in any axis before Saturation: | +/- 4000 degrees/sec |
| Max. Acceleration in any axis before Saturation: | +/- 16 G |
| Kalman Filter Propagation Rate | 416 Hz |
| Kalman Filter Update Rate | 416 Hz |
| Yaw angle accuracy (during motion): | ~0.5 degree of drift/minute |
| Yaw angle accuracy (when still): | ~0.2 degree of drift/hour (2 degree/Day) |
| Pitch/Roll angle accuracy | 0.5 degree |
| SPI/I2C/USB supported Update Rate: | 4-200 Hz |
| TTL UART supported Update Rate: | 4-80 Hz |
| Magnetometer Raw Update Rate: | 4 Hz |
| Magnetometer Angular Accuracy: | 2 degrees |
| Gyroscope Sensors Detailed Specifications (ISM330DHCX) | |
|---|---|
| Maximum Full-scale Range | +/- 4000 degrees/sec |
| Internal Update Rate | 6600 Hz |
| Typical Noise Density | .005 degrees/sec/√hz |
| Typical Angular Random Walk [ARW] | 0.21 degrees/√hour |
| Typical Allan Variance | 12.6 degrees/hour |
| Typical Bias Stability | 3 degrees/hour |
| Typical Bias Change vs. Temperature | .005 degrees/sec/°C |
| Typical Cross-axis sensitivity | 1 % |
| Typical Rate Sensitivity Change vs. Temperature | .007 %/°C |
| Typical Nonlinearity (Best-fit straight Line) | .042 % of Full-scale |
| Typical Zero-Rate Offset | 1 degree/second |
| Accelerometer Sensors Detailed Specifications (ISM330DHCX) | |
|---|---|
| Maximum Full-scale Range | 16 G |
| Internal Update Rate | 6600 Hz |
| Typical Noise Density | 60 uG/√Hz |
| Typical Cross-axis sensitivity | 0.5 % |
| Typical Bias Change vs. Temperature | 0.1 mG/°C |
| Typical Sensitivity Change vs. Temperature | .005 %/°C |
| Typical Output Noise [RMS] | 1.897 mG |
| Typical Nonlinearity (Best-fit Straight Line) | .46 % |
| Shock Survivability | 20,000 G |
| Magnetometer Sensors Detailed Specifications (LIS2MDL) | |
|---|---|
| Maximum Full-scale Range | 50 Gauss |
| Internal Update Rate | 100 Hz |
| Sensitivity | 1.5 mGauss/LSB |
| Typical Noise Floor [RMS] | 3 mGauss |
| Typical Sensitivity Change vs. Temperature | 0.03 %/°C |
| Typical Bias Change vs. Temperature | .3 mG/°C |