Overview
WT9011DCL is WitMotion’s 2nd-generation Bluetooth 5.0 attitude measurement sensor that integrates a 3-axis accelerometer, 3-axis gyroscope, and 3-axis magnetometer with an onboard attitude solver. Leveraging a dynamic Kalman-filter fusion algorithm, it delivers stable, low-noise 3-axis angle and quaternion data in dynamic environments. A compact battery-powered design, iOS/Android apps, and free PC software make it ideal for VR/AR, robotics, motion capture, gesture recognition, rehab monitoring, and UAV attitude logging.
Key Features
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9-DoF IMU + onboard solver: outputs 3-axis acceleration, angular velocity, magnetic field, Euler angles, and quaternion.
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Kalman filter fusion: suppresses gyro drift accumulation found in 6-axis only algorithms; high stability and repeatability.
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High-precision magnetometer: fast response, excellent anti-noise, stable temperature behavior.
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BLE 5.0 wireless: open-area transmission up to 50 m with instant response and low latency.
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Ultra-low power: long runtime with sleep current in the tens of microamps.
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Cross-platform tools: free Android/iOS apps (data recording/export to TXT) and PC software (dashboard, graphing, 3D pose view, multi-sensor link—recommended up to 4 units).
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Compact & robust: 4-layer PCB, small enclosure for easy embedding.
Specifications
| Item | Detail |
|---|---|
| Sensor set | 3-axis accelerometer, 3-axis gyroscope, 3-axis magnetometer; onboard attitude solver (Euler angles & quaternion) |
| Measurement ranges | Acceleration: ±16 g; Angular velocity: ±2000 °/s; Magnetic field: ±2 Gauss; Angle range: X/Z ±180°, Y ±90° |
| Resolution | Acc: 0.5 mg/LSB (2048 LSB/g); Gyro: 0.061 °/s/LSB; Mag: 0.0667 mG/LSB; Angle: 0.0055°/LSB |
| Angle accuracy* | X/Y axes 0.2°, Z axis 1° (no magnetic interference and after calibration) |
| Output contents | Acceleration, angular velocity, angle, magnetic field (mag output off by default), quaternion |
| Output frequency | 0.2 Hz–200 Hz (data-packet transmission 50–200 Hz; default 10 Hz) |
| Wireless | Bluetooth 5.0, open-area range up to 50 m |
| Working current | 14 mA (typ.) |
| Broadcast current | 21 mA |
| Standby current | 14–30 µA (typical 14–16 µA) |
| Battery | 130 mAh rechargeable; typical usage time ~40 h |
| Processor | 168 MHz Cortex-M4 |
| Wired interface / Baud | Data interface 115200 bps |
| Dimensions | 32.5 × 23.5 × 11.6 mm (mechanical drawing provided) |
| Weight | 9 g |
Software & Connectivity
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Mobile apps (search “WITOMTION” in Apple App Store & Google Play): real-time charts for Acc/Gyro/Angle/Mag, compass view, 3D pose, data logging and TXT export.
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PC software: device dashboard, multi-pane graphs, raw-data view, displacement/3D pose, configuration & calibration tools; supports linking multiple sensors (recommended 4) to one instance.
Typical Applications
VR/AR head/hand tracking, robotics attitude sensing, drone/UAV attitude logging, motion & sports monitoring, medical rehabilitation, gesture recognition, and interactive installations.
What’s in the Box
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WT9011DCL inclinometer ×1
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Type-C charging cable ×1
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Quick Start Guide ×1
Details

2nd gen BLE 5.0 attitude sensor, WT9011DCL, offers 50m transmission, Kalman filter for stability, 3-axis Acc, Gyro, Angle, Mag Field, 40h battery, digital filtering.

WitMotion WT9011DCL BLE sensor offers ±16g acceleration, ±2000°/s angular velocity, ±2Gauss magnetic field, ±180°/±90° angle range. Supports BLE 5.0, 130mAh battery, 9g weight, dimensions 32.5×23.5×11.6mm.

Bluetooth 5.0 technology with high-performance chip, instant response, fast data transmission, low latency, strong anti-interference, BLE 50m range, ultra-low power consumption, 10mA in operation, 30uA in sleep mode.

High-precision 3-axis magnetometer offers low power, high resolution, anti-noise, fast response, and stable temperature performance.

Kalman Filter Fusion Algorithm fuses 3-axis acceleration, gyroscope, and magnetic field data for precise angle calculation. Accuracy: X and Y axes 0.2°, Z axis 1° after calibration without magnetic interference.

WitMotion APP enables Bluetooth sensor configuration for professional attitude measurement on Android and iOS. Data can be recorded and exported in TXT format. Available on App Store and Google Play.

WitMotion WT9011DCL BLE Sensor offers PC software for easy development and testing via Bluetooth. Configure parameters, calibrate acceleration, and view real-time data with professional tools, including angle measurements and 3D visualization.

Dashboard captures all sensor data intuitively. Supports multiple connections: 4 sensors to 1 software. Freely switch between four 3D models: car, helmet, cube, plane. Real-time visualization with human model interface.

Real-time dynamic data display of acceleration, angular velocity, angle, magnetic field, and GPS. Includes graph curves, numerical summaries, and sensor readings from COM15. Features system time, chip date, temperature, pressure, and quaternion values.


Measurement data saved directly for effortless collection. Development kit includes PC software, iOS and Android apps, sample programs, manual, serial port driver, supporting C++/C# development.

VR, Robot, Motion monitoring, Medical rehabilitation, Gesture Recognition, Virtual Interaction


Equipment undergoes rigorous testing—including temperature extremes, salt spray, vibration, and aging—to ensure professional quality and reliability.
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