1. Introduction and Overview
The WITMOTION WT9011DCL is a high-precision, low-power 9-axis Attitude and Heading Reference System (AHRS) Inertial Measurement Unit (IMU) sensor. It integrates a Bluetooth 5.0 module, accelerometer, gyroscope, and magnetometer, providing accurate output data including 3-axis acceleration, angular velocity, angle (Pitch, Roll, Yaw), magnetic field, quaternion, and port status. Designed for various applications, this sensor offers stable data output and excellent bias stability through its integrated R&D dynamic fusion algorithm and Kalman Filtering.
Image 1.1: The WT9011DCL sensor module alongside its Bluetooth adapter.
2. Product Features
- High Performance: Provides accurate 3-axis XYZ (Pitch, Roll, Yaw) Acceleration, Gyroscope, Angle, Magnetic field, Quaternion, and Port status data.
- Bluetooth 5.0 Connectivity: Low consumption Bluetooth 5.0 with a coverage range of up to 50 meters in open areas. Compatible with Android & iOS phone apps and Windows computers, supporting multi-connection for up to 4 sensors.
- Advanced Algorithms: Features an 8-year professional attitude measuring solution with integrated R&D dynamic fusion algorithm and Kalman Filtering for stable data output, excellent bias stability, and low noise levels, enhancing measurement accuracy.
- Robust Design: Compact and wearable design with a Type-C interface for charging. Battery life is approximately 10 hours.
- Comprehensive Development Kit: Includes phone APP, Windows software, Python SDK, Android SDK, and communication protocols to facilitate secondary development and testing.
Image 2.1: Overview of the Bluetooth 5.0 Attitude Sensor and its 9-axis fusion capabilities, including 3-axis acceleration, gyro, angle, magnetic field, quaternion, and port status.
Image 2.2: Key features highlighted: Bluetooth 5.0 wireless range, 40-hour low power lifetime, USB-C interface charging, and mini & wearable design for easy monitoring.
3. Specifications
Image 3.1: Detailed product parameters including current, range, resolution, accuracy, output content, transmission, communication, usage time, weight, battery, and dimensions.
| Parameter | Value |
|---|---|
| Product Dimensions | 1.26 x 0.92 x 0.45 inches; 1.06 ounces |
| Item Model Number | WT9011DCL |
| Batteries | 1 Lithium Ion battery required (included) |
| Date First Available | March 25, 2019 |
| Manufacturer | WitMotion Shenzhen Co.,Ltd |
| Material | Acrylonitrile Butadiene Styrene |
| Item Weight | 30 Grams |
| Style | Type-C |
4. Setup
To set up your WT9011DCL sensor, follow these steps:
- Charge the Sensor: Connect the WT9011DCL sensor to a power source using the provided Type-C charging cable. Ensure the sensor is fully charged before initial use for optimal battery life.
- Connect the BLE 5.0 Adapter: If using with a computer, plug the included BLE 5.0 adapter into an available USB port on your PC.
- Install Software/App: Download and install the WITMOTION PC software or the mobile application (for Android/iOS) from the official WITMOTION website or relevant app stores. Links and instructions are typically found in the welcome guide or on the WITMOTION support page.
- Pair the Sensor: Follow the instructions within the software or app to pair your WT9011DCL sensor via Bluetooth. The sensor should be discoverable once powered on.
Image 4.1: The WT9011DCL sensor connected via its USB-C port for charging.
5. Operation
Once set up, the WT9011DCL sensor can be operated through the WITMOTION software or mobile application to acquire and analyze data.
- Data Acquisition: The software/app allows real-time data streaming from the sensor, including acceleration, angular velocity, angle, magnetic field, quaternion, and port status.
- Multi-Sensor Connection: The system supports connecting up to 4 WT9011DCL sensors simultaneously for comprehensive data collection from multiple points.
- Data Visualization and Recording: The WITMOTION software provides features such as compass display, 3D visualization, dashboard view, curve display, and data recording for detailed analysis.
- Configuration: The software includes a configuration menu to adjust sensor parameters, ranges, and communication settings to suit various application requirements.
Image 5.1: Screenshot of the WITMOTION PC software displaying real-time sensor data and multi-connection capability.
Image 5.2: The WITMOTION ecosystem, showing PC software and smartphone apps with various development materials like manuals, SDKs, and protocols.
6. Maintenance
Proper maintenance ensures the longevity and accuracy of your WT9011DCL sensor:
- Cleaning: Keep the sensor clean and free from dust and debris. Use a soft, dry cloth for cleaning. Avoid using harsh chemicals or abrasive materials.
- Storage: Store the sensor in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: Recharge the sensor when the battery is low. Avoid fully discharging the battery frequently to prolong its lifespan. The estimated battery life is approximately 10 hours on a full charge.
- Magnetic Interference: For accurate magnetometer readings, ensure the sensor is calibrated before use and kept at least 20cm away from strong magnetic interference sources and hard magnetic objects during operation.
7. Troubleshooting
If you encounter issues with your WT9011DCL sensor, consider the following:
- Connectivity Issues: Ensure the sensor is charged, powered on, and within the Bluetooth range (up to 50m in open area). Verify that the Bluetooth adapter (if used) is properly connected to your computer. Restart the sensor, adapter, and host device if necessary.
- Inaccurate Readings: Perform a calibration of the sensor using the provided software. Ensure there are no strong magnetic fields or vibrations affecting the sensor during operation, especially for magnetometer and gyroscope readings.
- Software/App Problems: Ensure you are using the latest version of the WITMOTION software or mobile application. Reinstall the software if persistent issues occur.
- No Data Output: Check the sensor's power indicator. Verify that the sensor is correctly paired and connected in the software/app.
For further assistance, refer to the support section below or contact WITMOTION customer service.
8. Areas of Applications
The WT9011DCL sensor is versatile and suitable for a wide range of applications requiring precise attitude and motion sensing:
- Virtual Reality (VR): For head tracking and motion control in VR environments.
- Robotics: For robot navigation, balance control, and precise movement.
- Motion Monitoring: In sports, fitness, and industrial settings for tracking movement and posture.
- Medical Rehabilitation: For monitoring patient movement and progress during physical therapy.
- Gesture Recognition: Enabling control through hand or body gestures.
- Virtual Interaction: For interactive systems and simulations.
Image 8.1: Visual representation of diverse applications including VR, robotics, motion monitoring, medical rehabilitation, gesture recognition, and virtual interaction.
9. Support and Warranty
WITMOTION provides comprehensive support for its products:
- Warranty: Enjoy a 12-month warranty and lifetime friendly customer service from the WitMotion team.
- Documentation: Access the complete tutorial, user guides, and instructions for use by visiting wit-motion.com and navigating to the support page. You can also find a tutorial link on the guide card inside the product package.
- Video Tutorials: Find and subscribe to the WITMOTION YouTube channel for instructional videos and project sharing.
- Contact Support: For any assistance, you can contact support directly at support@wit-motion.com.
Image 9.1: Product label showing manufacturer details and support email address.
