HFI-A9 9 Axis ROS Robot IMU Module Arhs Attitude Sensor USB Interface Gyroscope Accelerometer Magnetometer 300Hz

Core highlights:

• Integrated high-precision sensors (3-axis gyroscope, 3-axis acceleration, 3-axis magnetometer)

• The internal integrated posture settlement period, combined with the dynamic Kalman filter algorithm, can accurately output the current posture of the module in a dynamic environment with extremely high stability.

• It provides accurate calculation data for determining the orientation of the object in 3D space, such as Euler angle, quaternion and the most commonly used roll, pitch, and yaw direction data.

• The use of digital filtering technology can effectively reduce measurement noise and improve measurement accuracy.

• It integrates a three-axis magnetometer and has good anti-magnetic interference ability to reduce accumulated errors.

Module parameters:

• Power supply: 4.7~5.5V

• Use current: 5.0mA

• Communication method: USB serial port

• Output data: three axes (gyroscope + acceleration + magnetometer). Quaternion

• Gyroscope range: ±2000°/s

• Acceleration range: ±8g

• Magnetometer range: ±1.3 Gauss

• Angle accuracy: static 0.1° dynamic 0.5°

• Return rate/baud rate: 300Hz/921600

• ROS topic: /handsfree/imu /handsfree/magModel

• 6-axis IMU contains: 3-axis gyroscope, 3-axis accelerometer

• 9-axis IMU contains: 3-axis gyroscope, 3-axis accelerometer, 3-axis magnetometer

• 9-axis EKF fusion algorithm: there will be no accumulated drift error, but it is easily interfered by the magnetic field of the surrounding metal

• 9-axis anti-jamming fusion algorithm: there will be no accumulated drift error. The magnetic field anti-jamming algorithm independently developed by the internal help can effectively filter the surrounding magnetic field interference.