1. Ürün Bittiview
The WitMotion HWT9053-485 is an ultra-high precision 3-axis Accelerometer, Gyroscope, and Magnetometer Electronic Compass Sensor. It features an IP68 waterproof and dustproof aluminum casing, making it suitable for various outdoor harsh environments. Equipped with a superior temperature compensated ADXL355 accelerometer and anti-magnetic RM3100 magnetometer, it provides highly accurate data for 3-axis measurements (X/Y±0.001°, Z±1°). This sensor is designed for long-term monitoring of moving objects in challenging conditions and offers comprehensive development kits for integration with platforms like Arduino and ROS.
Figure 1: WitMotion HWT9053-485 Electronic Compass Sensor.
2. Temel Özellikler
- Ultra-high Precision: X&Y axes accuracy up to ±0.001°, Z-axis ±1°, with superior temperature compensated ADXL355 accelerometer and anti-magnetic RM3100 magnetometer.
- Sağlam ve Dayanıklı Tasarım: IP68 waterproof and dustproof aluminum casing, ideal for harsh environments. Includes a USB interface for direct PC connection.
- Comprehensive Data Output: Provides 3-axis Acceleration, Gyroscope, Angle, Magnetic field, Quaternion, and Temperature data.
- Advanced Algorithms: Integrates R&D dynamic fusion algorithm and Kalman Filtering for stable data output, excellent bias stability, and low noise.
- Geliştirme Kitleri: Supports self-developed PC software, iOS, and Android apps for real-time data viewing, storage, and export (TXT/CSV/Excel/Matlab). Provides various code examples (Linux/Arduino/ROS/STM32/C++).
Figure 2: Internal components and protective features of the HWT9053-485 sensor.
3. Kurulum ve Bağlantı
The HWT9053-485 sensor connects via a 485 interface. For initial setup and data viewing, use the provided USB-UART converter to connect the sensor to your PC.
3.1 Connecting to PC Software
- Connect the HWT9053-485 sensor to your computer using the 3-in-1 USB-UART converter.
- Launch the WitMotion PC software.
- Select the correct COM port and baud rate in the software to establish communication with the sensor.
Figure 3: HWT9053-485 sensor with USB-UART converter.
4. Operating the Sensor and Software
4.1 Real-time Data Monitoring (Dashboard)
The WitMotion software provides a dashboard interface to view all sensor data at a glance, including acceleration, angular velocity, angle, magnetic field, and more. This allows for intuitive monitoring of the sensor's attitude motion.
Figure 4: WitMotion software dashboard for real-time data.
4.2 Veri Kaydı ve Dışa Aktarımı
The software allows you to record and export sensor data to various formats such as TXT, CSV, Excel, and Matlab. This feature is crucial for detailed analysis and integration into other projects.
Figure 5: Exported sensor data in TXT format.
Figure 6: Matlab import and analysis of recorded sensor data.
4.3 Sensör Konfigürasyonu
The WitMotion software provides configuration options to adjust sensor parameters, including acceleration and magnetic field calibration, output rate, bandwidth settings, and algorithm selection. This allows users to optimize the sensor's performance for specific applications.
Figure 7: Sensor configuration options in WitMotion software.
5. Bakım ve Dayanıklılık
The HWT9053-485 sensor is designed for robust performance in challenging environments. Its IP68 rating ensures it is highly resistant to water and dust ingress. The aluminum casing provides excellent protection against physical damage and corrosion, contributing to its long-term reliability.
Figure 8: IP68 waterproof protection of the sensor.
6. Troubleshooting and Optimization
6.1 Improving 485 Interface Return Rate
For applications requiring a higher data return rate from the 485 interface, specific adjustments can be made within the WitMotion software. Note that the 485 interface operates in reply mode, which can affect the maximum stable return rate. If stability and a very fast return rate are critical, consider products with TTL, 232, or CAN interfaces.
Video 1: This video demonstrates how to improve the data return rate of the 485 interface sensor. It guides users through adjusting the bandwidth and baud rate settings in the WitMotion software to optimize performance. The video also clarifies that while adjustments can increase the return rate, the 485 interface's reply mode inherently limits the maximum stable return rate, suggesting alternative interfaces (TTL/232/CAN) for applications demanding higher stability and speed.
7. Teknik Özellikler
| Şartname | Değer |
|---|---|
| Örnek | HWT9053-485 |
| Çip | Military grade ADXL355 + MMC3630 |
| Cilttage | 5-36V |
| Akım | <60mA |
| İletişim | RS485 (Modbus RTU protocol) |
| Çıktı Verileri | 3-axis acceleration, gyroscope, angle, magnetic field, quaternion, time |
| Menzil | Acceleration: ±2g, Gyroscope: ±2000°/s, Angle: X, Z±180°, Y±90° |
| Kesinlik | X, Y axis: 0.001°, Z axis: 1° (no magnetic field interference and calibrated) |
| Magnetic field Accuracy | 1mg (milligauss) |
| Baud hızı | 4800-921600 |
| Boyut | 47*37*20mm (Default cable length is 1 meter, customization supported) |
| Ağırlık | Sensor: ≈52.8g, Cable(1meter): ≈43.7g |
| Yön | Vertical or horizontal optional (default horizontal installation) |
Figure 9: Technical specifications and dimensions.
7.1 Data Protocol (Angle Output ExampTHE)
| HAYIR. | İçerik | Anlam |
|---|---|---|
| 0 | 0x50 | Data headings |
| 1 | 0x03 | Angle data packet |
| 2 | 0x08 | Veri uzunluğu |
| 3 | LRollH | X-axis angle low byte high |
| 4 | LRollL | X-axis angle low byte low bit |
| 5 | HRollH | X-axis angle high byte high |
| 6 | HRollL | X-axis angle high byte low byte |
| 7 | LPitchH | Y-axis angle low byte high |
| 8 | LPitchL | Y-axis angle low byte low bit |
| 9 | HPitchH | Y-axis angle high byte high |
| 10 | HPitchL | Y-axis angle high byte low byte |
| 11 | CRCH | Sağlama toplamı yüksek |
| 12 | CRCL | Sağlama toplamı düşük |
Figure 10: Angle output data protocol. Formulas for angle calculation are provided in the full communication protocol document.
8. Garanti ve Destek
The WitMotion HWT9053-485 sensor comes with a 12 ay garanti. WitMotion provides lifetime friendly customer service and technical support.
8.1 Accessing Support and Tutorials
- The tutorial link is printed on the guiding card inside the product package.
- Visit the official WitMotion webalan (wit-motion.com) to download the complete tutorial and access additional resources.
- For any assistance, contact the WitMotion support team via email: support@wit-motion.com.