WITMOTION BWT901CL
WITMOTION BWT901CL Bluetooth Accelerometer+Inclinometer User Manual
Модели: BWT901CL
1. Продукт бүтүп калдыview
The WITMOTION BWT901CL is a high-precision 9-axis IMU sensor integrating an accelerometer, gyroscope, angle sensor, and magnetometer. It features a Kalman Filter for stable data output and high bias stability. Designed for various applications, it offers flexible measurement ranges and output rates.

Figure 1: WITMOTION BWT901CL Bluetooth Accelerometer+Inclinometer.
This compact sensor is equipped with Bluetooth 2.0 for wireless connectivity, offering a 10-meter range without obstacles. It supports multi-connection via WITMOTION PC software (USB-HID adapter required) and features a 4-hour battery life with long-term measurement capability while recharging.
2. Пакеттин мазмуну
Кутучаны ачканда, төмөнкү нерселердин бардыгы бар экенине ынаныңыз:
- 1 x WitMotion BWT901CL Bluetooth 2.0 inclinometer
- 1 x заряддоо кабели
- 1 x Welcome guide
(Note: USB-HID adapter not included and must be purchased separately for PC multi-connection.)

Figure 2: Contents included in the BWT901CL package.
3. Орнотуу жана туташуу
3.1. Software/App Installation
The BWT901CL sensor can be connected and configured via both PC software and a mobile application. For the best experience, it is recommended to download the official WITMOTION software/app.
- For PC software and drivers, visit the official WITMOTION Wiki or GitHub репозиторий.
- For mobile applications (iOS/Android), search "WITMOTION" in your device's respective app store.

Figure 3: WITMOTION PC Software Interface.

Figure 4: WITMOTION Multifunctional Android APP.
3.2. Bluetooth Connection Steps
Follow these steps to connect your BWT901CL sensor via Bluetooth:
- Ensure Bluetooth is enabled on your smartphone or PC.
- Open the WITMOTION application.
- Turn on the sensor. For WT9011DCL, press and hold the button for 3 seconds until the green light flashes. For BWT901CL and BWT61CL, simply power them on.
- In the app, navigate to the "Device Scan" or "Scan" section.
- Select the corresponding device from the list. WT901BLECL will appear as "WT901BLE", and BWT901CL will appear as "HC-06".
- Once connected, the app will display real-time sensor data.

Figure 5: Bluetooth connection overview.
Video 1: Demonstrates how to connect the WITMOTION Bluetooth sensors with an iPhone and use the iOS app. This video covers app installation, enabling Bluetooth access, scanning for devices, and connecting to different sensor models (WT9011DCL, BWT901CL, BWT61CL).
4. Сенсорду иштетүү
4.1. Data Output and Interface
The WITMOTION app provides various data outputs and interfaces for monitoring the sensor's performance:
- Ылдамдатуу: Displays 3-axis acceleration data.
- Гироскоп: Shows 3-axis angular velocity.
- Бурч: Provides pitch, roll, and yaw angles.
- Магниттик: Displays 3-axis magnetic field data.
- Quaternion: Shows quaternion values for orientation.
You can observe real-time data curves and numerical values for each parameter. The app also features a dashboard for an intuitive overview of all sensor attitude motion.

Figure 6: Software Dashboard for intuitive data viewing.
4.2. Калибрлөө
Calibration is crucial for accurate sensor readings. The app provides options for:
- Acceleration Calibration: Place the sensor on a horizontal surface and initiate calibration. The X and Y acceleration values should return to 0, and Z-axis should show 1G, indicating successful calibration for acceleration bias.
- Magnetic Calibration: This requires careful execution to avoid magnetic interference. Ensure the sensor is away from mobile phones, computers, or metal surfaces. The calibration process involves rotating the sensor 360 degrees horizontally and vertically. The app will guide you through the steps.

Figure 7: Data stability with WitMotion Algorithm and Kalman Filtering.
4.3. Конфигурация орнотуулары
Adjust various parameters to optimize sensor performance for your specific application:
- Чыгуу ылдамдыгы: Change the data output frequency. The default is 10Hz, but it can be set up to a maximum of 200Hz.
- Заводдук калыбына келтирүү: Бардык орнотууларды демейки маанилерине кайтарат.
- Rename Function: Allows you to customize the device name (e.g., "WT123").

Figure 8: Configuration Settings Interface.
4.4. Data Recording and Export
The app allows you to record sensor data and export it for further analysis. Recorded data can be saved in various formats, including TXT, which can then be imported into spreadsheet software like Excel for detailed review.

Figure 9: Data Storage & Export Functionality.
5. Техникалык тейлөө
To ensure the longevity and optimal performance of your BWT901CL sensor, follow these general maintenance guidelines:
- Аппаратты чаңдан жана таштандылардан таза жана таза кармаңыз. Тазалоо үчүн жумшак, кургак чүпүрөктү колдонуңуз.
- Avoid exposing the sensor to extreme temperatures, humidity, or direct sunlight.
- Аппаратты колдонбогондо салкын, кургак жерде сактаңыз.
- Protect the sensor from physical shocks or drops, as this can affect its calibration and internal components.
- Regularly check for software/firmware updates from the official WITMOTION webакыркы функцияларды жана каталарды оңдоону камсыз кылуу үчүн сайт.
6. Кыйынчылыктарды
Бул жерде кээ бир жалпы маселелер жана алардын мүмкүн болуучу чечимдери:
| Маселе | Мүмкүн себеп | Чечим |
|---|---|---|
| Bluetooth аркылуу туташуу мүмкүн эмес. | Bluetooth not enabled, sensor not powered on, out of range, or incorrect device selected. | Ensure Bluetooth is on, sensor is charged and powered, within 10m range, and select the correct device name (WT901BLE or HC-06). |
| Inaccurate angle/magnetic readings. | Sensor not calibrated or magnetic interference. | Perform Acceleration and Magnetic Calibration as described in Section 4.2. Ensure no strong magnetic fields (phones, metal objects) are near the sensor during use. |
| App/Software crashes or freezes. | Outdated app/software version, or system incompatibility. | Update the app/software to the latest version. Check WITMOTION's website for system requirements and compatibility. Restart the app/software and the sensor. |
| Data not recording or exporting correctly. | Insufficient storage on device, or software glitch. | Check available storage on your phone/PC. Restart the app and try recording again. Ensure proper file permissions for saving data. |
7. Техникалык шарттар
| Өзгөчөлүк | Деталь |
|---|---|
| Элемент моделинин номери | BWT901CL |
| Пакеттин өлчөмдөрү | 3.82 x 3.46 x 1.14 дюйм |
| Элемент Салмагы | 1.76 унция |
| Output Data | 3-axis XYZ (Pitch Roll Yaw) Acceleration, Gyro, Angle, Magnetic field |
| Чыгуу ылдамдыгы | 0.2-200Hz (selectable) |
| Bluetooth диапазону | 10-meter (no obstacles) |
| Батареянын иштөө мөөнөтү | 4-hour (long term measurement while recharging) |
| Өндүрүүчү | WitMotion Shenzhen Co.,Ltd |
8. Кепилдик жана колдоо
WITMOTION provides comprehensive support for its products:
- Кепилдик: 12 айлык кепилдик.
- Кардарларды тейлөө: Lifetime friendly customer service by the WitMotion team.
- Документтер: Visit wit-motion.com and find the support page for all kinds of documentation, software, instructions, and apps. You can also access the WITMOTION Google Drive to download tutorials.
- Видео үйрөткүчтөр: Find and subscribe to the WITMOTION YouTube channel for instructional videos and project experience sharing.
- Байланыш: For any assistance, contact support (at) wit-motion (dot) com.
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