WitMotion HWT906 9-Axis Attitude Angle Sensor (1000 Hz, Acc + Gyro + Digital Compass, Temperature Compensation)

Overview

The WitMotion HWT906 is an array-type, 9-axis high-stability attitude angle sensor that fuses a 3-axis accelerometer, 3-axis gyroscope, and 3-axis magnetometer to deliver pitch/roll/yaw angles with high accuracy and low drift. A high-performance MCU with Kalman-filter fusion plus temperature compensation (multi-sensor array design) ensures stable measurements across harsh conditions. Output rate is adjustable from 0.2–1000 Hz (500 Hz default), making it suitable for fast, dynamic applications.

Key Features

• 9-axis IMU + attitude: acceleration, angular velocity, magnetic field, angle, quaternion, and timestamp.

• High precision: angle accuracy (X/Y) 0.05° static, 0.1° dynamic; Z-axis 1° (after calibration and away from magnetic interference).

• Ultra-high-speed output: up to 1000 Hz data frequency.

• Temperature compensation: multi-MEMS array architecture reduces temp drift and improves stability.

• Robust build: compact aluminum housing; shock-resistant design.

• Rich interfaces: Serial TTL, I²C, SPI; baud rate 2400–921 600 (default 921 600).

• PC tools & SDK samples: real-time graphs, 3D demo, data logging/export (TXT); example routines for STM32/Arduino/51, Windows C/C#, and MATLAB.

Specifications

Algorithms & Visualization

• Kalman filter fusion with zero-bias auto-calibration to calculate angles accurately.

• Real-time plotting (acceleration / angular velocity / angle / magnetic field) and flight-instrument UI to view pitch, roll, and yaw at a glance.

• 3D DEMO for intuitive motion visualization.

• Data storage & export: record sessions and export as TXT for analysis.

Interfaces & Protocols

• Serial TTL (selectable baud rates up to 921 600).

• I²C and SPI for embedded integration.

• Output content is user-selectable to match bandwidth and host processing constraints.

Development Resources

• Example code/routines: STM32, Arduino (serial library), 51-MCU, Windows C/C#, MATLAB.

• Manual, drivers, PC software, sample code are provided. (Note: schematic source code is not available.)

Quality Assurance

High-temp aging, ultra-low-temp testing, long-term reliability testing, salt-spray testing, simulated transportation, and aging tests help ensure consistent performance.

Typical Applications

• Robotics, gimbals, and mobile platforms

• AGV/AMR navigation and attitude reference

• Industrial vibration/tilt monitoring

• Motion capture, education & R&D projects

Packing List (as shown)

• HWT906 sensor module

• Type-C data cable

• USB Type-C evaluation board (CH340, LED TX/RX indicators, full pin breakout)

Details

High-stability Attitude Angle Sensor with High-accuracy and Low Drift for ATTITUDE MEASUREMENT, INCLINATION MEASUREMENT, VIBRATION MEASUREMENT. It features a 9-axis sensor with a 3-axis Accelerometer, 3-axis Gyroscope, and 3-axis Angle Measurement, as well as Temperature and Field sensors, operating at 1O00Hz with Compensation.

Kalman filter fusion algorithm. WTMOTION patented zero-bias automatic detection calibration and R&D dynamic fusion algorithm outperforms traditional accelerometer. Angle accuracy: 0.05° static, 0.1° dynamic, Z axis 1° (away from magnetic field interference and calibrated).

High-precision 3-axis angle output for pitch, roll, yaw. Real-time visual data with easy-to-read graphs. Features include acceleration, angular velocity, magnetic field, and raw data display. Compatible with COM23 port at 921600 baud rate.

Sensor motion displayed through 3D demo with intuitive visualization. Data stored and exported to TXT format for detailed tracking and manipulation.

HWT906 9-axis sensor with 1000Hz high-speed data output, shock-proof aluminum casing, premium durability, and precise attitude measurement.

Temperature compensation with MEMS sensor arrays reduces drift. Multi-sensor fusion enhances accuracy through cross-arranged sensors and advanced algorithms.

Compact 9-axis attitude sensor by WitMotion, weighing 5.5g, supports 3.3-5V, <25mA current, with serial TTL, I2C, SPI interfaces. Measures acceleration, gyro, angle, magnetic field, quaternion, and time. Dimensions: 20×20×8.2mm.

Wiring connection diagram for WitMotion HWT906 9-axis sensor showing serial, IIC, and SPI interfaces with MCU, including VCC, GND, TX, RX, SDA, SCL, CS, SCK, MOSI, and MISO pins.

Free Evaluation Board: CH340 driver, Type-C interface, plug and play. LED indicates data transmission and reception. All module pins lead out for easy development.

Development kits with sample codes for STM32, Arduino, 51, Windows, and Matlab; includes manual, drivers, PC software, and sample code. Schematic source code unavailable.

Quality Assurance: High-temp aging, ultra-low temp, long-term reliability, salt spray, simulated transportation, and aging tests.

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