- 【 HIGH PERFORMANCE】0.2-200Hz Accurate Data Measurement, 3-axis(X Y Z) Acceleration + Gyro + Angle+ Magnetic field, Angle Accuracy reaching 0.05°(Statics), 0.1°(Dynamic)
- 【 SUPERIOR ABILITY】 2 working types, TTL Wiring Connection for Real-time Data Review, Wireless Connection for Data Logging and Storage(4 hours at 1 Charge)
- 【 Worry-free Support 】12-month warranty, lifetime friendly customer service by WitMotion team. Option 1. The tutorial link is printed on the guiding card inside the package. Option 2. search wit-motion(dot)com and download the complete tutorial. Option 3. contact us if you need any help, support (at) wit-motion (dot) com
- 【 WITMOTION Advantage 】8-year Professional Attitude Measuring Solution Provider, sensors integrated R&D dynamic fusion algorithm and Kalman Filtering ensuring stable data output and excellent bias stability, low noise level, increasing measurement accuracy
- 【 What You Get 】1*WT901SDCL sensor, 1*16GB SD card, 1*SD Card Reader, 1*Charging Cable, 1*Welcome Guide
Product Description
Highlights
WT901SDCL’s scientific name is the AHRS IMU sensor. A sensor measures 3-axis angle, angular velocity, acceleration, magnetic field. It is a 9-axis recorded acceleromater with internal RTC time counter and SD card to save data. It integrates a high-precision gyroscope, accelerometer, and geomagnetic field sensor, and adopts a high-performance microprocessor, advanced dynamics fusion algorithm, and Kalman dynamic filtering algorithm to quickly analyze the module’s current real-time motion posture.
- By WitMotion advanced digital filtering technology, the sensor can effectively reduce measurement noise and improve measurement accuracy
- With its in-built posture solver and the dynamic Kalman filter algorithm, the sensor can accurately output the current posture of the product in a dynamic environment. The measurement accuracy of the X and Y axis can reach 0.05°, and the stability is extremely high.
- Persued for best data accuracy and stability: WTMOTION patented zero-bias automatic detection calibration algorithm and R&D dynamic fusion algorithm outperforms traditional accelerometer sensor.
Technical Specifications:
- Current: <40mA（Working current）,stand-by current（<50mA）
- Voltage: 3.7V (Battery powered) /5V（USB powered）
- Data output frequency：0.2Hz~200Hz
- Baud Rate: 2400bps~921600bps(adjustable)
- Mag field accuracy: 1mg
- Output Content: 3-axis Acceleration+Angle+Angular Velocity+Magnetic Field+Quaternion
- Range: Acceleration (±2/4/8/16g), Gyroscope (±2000°/s), Magnet Field (±4900µT), Angle (X, Z-axis: ±180°, Y ±90°)
- Resolution: Acceleration (0.01g), Gyroscope (0.05°/s), Magnet Field (16 bits)
- Angle Accuracy(after calibrated): X, Y-axis: 0.05° (Static) , X, Y-axis: 0.1° (Dynamic)
Note: Z-axis angle will be affected by magnetic field. It is required to calibrate and keep the sensor at least 20cm away from the stuff like metal that may create magnetic field interference.
Hardware Analysis (In-built WT901)
| Cortex-M0 core processorBuilt-in Cortex-M0 core processor which can operate reaching 48MHZ, faster speed in the data processing. | Plastic Casing
Note: Operating temperature: -40℃ ~ +85℃ | WITMOTION Alrogithm AdvantagesWITMOTION products are derived from the aerospace Satellite Attitude Determination Algorithm. Built-in core algorithm:
Time and energy saving: No need to write a filtering program or study the complicated protocol of MPU6050/ 9250 to analyze and collect the attitude angle data. |
Diverse Sample CodeThanks to its diverse interface and small size, it is extremely suitable for the embedded systems. The sample codes would be provided to reduce the work and time spent on the writing program of MCU.
| Tutorial & Development Kit
| Packing List
| Applications
|
Genuinely Useful Software
WITMOTION software offers several advantages over competing sensor:
- configurations setting
- dashboard, 3D DEMO, data curve & chart display in real-time
- data record and playback, raw data reviewing, and more
Notice: There is no software for the Linux, Python, or Mac system at present. Witmotion software is provided as free, compatible with the Windows system only, including Win 10, 8, 7, XP.
3D DEMO
More intuitive to view the sensor’s motion state. There are 4 types of simulation, car, head, plane, cube. The source code of 3D can be provided if customers have needs.
Use Instructions with Windows PC:
- Download the complete tutorial and unzip the file, follow the instructions of the manual or video demo (There will be an instruction card printed with two QR codes indicating the document download link, one is Google Drive, another is Github. )
- Wiring Connection: USB-TTL serial converter cable (included in the package) PIN instruction: VCC-5V, GND-GND, RX crossly connecting with TX.
- Install the driver of CH340, open the software (Minimu.exe) , connection succeeds after auto-search finishes
Rock-solid data measurement in real-time
The motion changing of the sensor will show on the data curve in real-time.
Much easier and convenient for data collection and application.
- The data can be recorded by simply click the “record” button.
- Able to record and export the data to TXT format, offering you a clear data-changing track.
- For data analysis please refer to the Chapter Data Format of the datasheet. There will be a complete communication protocol provided on the datasheet.
Config Menu
By simply changing its setting on software, various kinds of the configuration of the WitMotion sensor can be easily done. Configuring the device enables the customer to address a broad variety of use cases by applying the sensor data filtered by WITMOTION algorithms.
- Acceleration & Magnetic field calibration (recommended to proceed when starting to use)
- Output rate, bandwidth setting( sensitivity adjustable ), measurement range selectable
- Algorithm swift freely: easily change to 6-axis algorithm if there is strong magnetic field interference
- Placement Direction, and more
About The Background of WitMotion
About WITMOTION
Established in 2014, WitMotion Team to become a profession manufacturer in attitude sensor, AHRS IMU. Foud out more here in our Witmotion Brand Store.
The company is dedicated to make attitude measurement and tilt angle sensing solutions more accessible and easier for engineers around the world. Widely used every day by customers in over 50 countries for energy and electric power, tower control, Monitoring, engineering machinery, medical, academic, integrated system, more developing projects.
WITMOTION’ s R&D Dept.
- 20+ engineer industry’s R&D team, and has a long-term collaboration with the Beihang University PhD team.
- WitMotion R&D protocol and Dynamic Fusion Algorithm
- over 50+ patents and software program
Research and Development Facilities:
- Triaxial nonmagnetic turntable: All finished items will be calibrated through the turntable, ensuring the X Y Z angle’s accuracy.
- High& low temperature test chamber, making sure that the sensor can actually work well under -40℃ ~ +85℃ environment
- Vector Network Analyzers(VNA): Bluetooth antenna impedance matching
- 6 degrees of freedom vibration test bench: sensor’s high performance and stability secured under vibration and dynamic environment
Premium Components & QC System: All components are selected and certified under a strict quality control system from the procurement, manufacturing process to assembly, inspection.
Automatic Production&Assemble line of Factory:
- Automatic Solder Paste Printing, Imported Placement Machine, Multi-temperature Reflow Soldering, Fully Automatic Inspection
| Interface | TTL | RS232 | RS485 Modbus RTU | TTL | RS485 Modbus RTU | TTL |
|---|---|---|---|---|---|---|
| Compatibility | Windows PC, Android phone, MCU Arduino, Raspberry pi, etc | Windows PC, PLC system, MCU Arduino, Raspberry pi, etc. | Windows PC, PLC system, MCU Arduino, Raspberry pi, etc. | Windows PC, Android phone, MCU Arduino, Raspberry pi, etc | Windows PC, PLC system, MCU Arduino, Raspberry pi, etc. | Windows PC, Android phone, MCU Arduino, Raspberry pi, etc |
| Input Voltage | 3.3-5V | 9-36V | 9-36V | 3.3-5V | 9-36V | 3.3-5V |
| 3-Axis Acceleration | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 3-Axis Angular velocity (Gyroscope) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 3-Axis Angle | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| 3-Axis Magnetic Field | ✓ | ✓ | ✓ | ✓ | ✓ | |
| 1-Axis Barometer | ✓ | ✓ | ✓ | ✓ | ||
| Housing | Aluminum case, Anti-dust | Aluminum case, Anti-dust | Aluminum case, Anti-dust | Aluminum case, IP67 waterproof | Aluminum case, IP67 waterproof | Plastic case |
| Main Features | Military-Grade Accuracy, RM3100 magnetometer compensation | Military-Grade Accuracy, RM3100 magnetometer compensation | Military-Grade Accuracy, RM3100 magnetometer compensation | Military-Grade Accuracy, RM3100 magnetometer compensation | Dual-axis tilt angle measurement, support 128 units multiple-connection | Chinese Beidou navigation system+ GPS, High-stability IMU sensor |
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