The navX-Micro 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 a start-up Gyroscope/Accelerometer Calibration period, during which time the navX-Micro circuit board must be held still.
Additional details can be found in the navX-Micro datasheet.
|Current Consumption:||50 millamps|
|Communications Interface:||USB, I2C|
|Power Connector:||USB, I2C|
|USB Connector:||USB Mini-B|
|Startup Calibration Period:||15 seconds|
|Gyro Sensitivity:||+/- 2000 degrees/sec|
|Accel Sensitivity:||+/- 2 g|
|Magnetometer Sensitivity:||1.3 Gauss|
|Yaw angle accuracy:||~1 degree of drift/minute|
|Yaw angle accuracy (when still):||~.25 degree of drift/minute|
|USB/I2C Port Update Rate:||4-200 Hz|
|Magnetometer Raw Update Rate:||4 Hz|
|ADC Resolution:||16 bits|
|Magnetometer Angular Accuracy:||+/- 2 degrees|
|Pitch/Roll Angular Accuracy:||+/- 1.5 degrees|