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Highlights
WT901C’s scientific name is the AHRS IMU sensor. A sensor measures 3-axis angle, angular velocity, acceleration, magnetic field. WitMotion WT901C 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
- Voltage: 5-36V (requiring a power source of 5-36V
- Data output frequency：Modbus RTU (data rate based on the baud rate )
- Baud Rate:4800-230400 (adjustable)
- Output Content: 3-axis Acceleration+Angle+Angular Velocity+Magnetic Field+Quaternion
- Range: Acceleration (±6g), Gyroscope (±2000°/s), Magnet Field (±4900µT), Angle (X, Z-axis: ±180°, Y ±90°)
- Resolution: Acceleration (0.005g), Gyroscope (0.61°/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.
The bulk inquiry is welcome. Production capacity is 10,000pcs / month.If you have any interest or need any help, please feel free to reach us.
Hardware Analysis (In-built WT901)
- Embedded highly-integrated MEMS accelerometer and gyroscope sensor, more stable and reliable in attitude measurement
- Premium power chip ensuring stable supply voltage
- 4-layer PCB design and using stamps holes gold-immersion process to prevent oxidation
Cortex-M0 core processor
Built-in Cortex-M0 core processor which can operate reaching 48MHZ, faster speed in the data processing
Plastic Casing
- Net weight: 20g
- Size: 51.3mm x36mm X15mm/ 2.02" x 1.41" x 0.59"
- Two wings design at the edge, better for installation
Note: Operating temperature: -40℃ ~ +85℃
WITMOTION Algorithm Advantages
WITMOTION products are derived from the aerospace Satellite Attitude Determination Algorithm.
Built-in core algorithm:
- R&D Dynamic Fusion Algorithm
- Kalman filtering (program filter)
- Digital filtering
- State estimation 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.
Data Protocol
- A detailed communication protocol will be provided for data analysis and calculation
- For details, please refer to the datasheet
Diverse Sample Code
Thanks 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.
- Provided codes including 51 serial, C++, C#, STM32, Arduino, and Matlab
Tutorial & Development Kit
- Manual with set-up instructions
- Datasheet
- Free software for Windows PC (Minimu.exe)
- Instruction video (search WITMOTION on Youtube)
- CH340 & CP2102 serial Drivers
Packing List
- 1x WT901C-485 Inclinometer
- 1* 4-PIN Dupont cable
- 1x Instruction card printed with QR code of document center
Our Promise:
- 30 days return refund policy for any quality issue
- Quality secured, 100% inspected & tested at factory before shipping
- Remote diagnostics and lifetime technical support by Witmotion engineering team
PC software for Windows
3D Display
Data Curve Display
Configuration
About WITMOTION
Established in 2014, WitMotion Shenzhen Co., Ltd aims to become a global leader in attitude sensors, AHRS IMU. Foud out more here in our Witmotion Brand Store on Amazon.
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+professional engineer industry's top 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:
- World's top-level of 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
Jim P
Reviewed in the United States on December 6, 2022
Not wireless. Wires dangling out that you have to figure out what to do with them.Useless for me. Just use free cell phone app. I think it can do everything this device might be able to do.Save your money.
netplaceus
Reviewed in the United States on October 7, 2022
I opened the case and removed the failed part, I don't know why it failed, but there was a little chunk of solder floating around in the case. It also became clear for reasons unknow the manufacture had "tried" to lift off, or scrape off different sections of the copper land. But they left part of it sticking up, soldering very rough on several areas. I don't know why it failed, but very likely the solder chunk shorted out something.
wayne duke
Reviewed in the United States on September 14, 2021
Unable to use with Arduino.Severe lack of information.Returned for refund.Purchased WT901C-TTL. It works with Arduino.
Len polucci
Reviewed in the United States on April 27, 2021
Much to difficult to set up with the instructions provided. Is this sensor for Android or IPhone or PC?
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