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  • Connect the WitMotion WT901SDCL to a Windows PC by downloading the tutorial, installing the CH340 driver, connecting the cable, and opening MiniIMU.exe. Data appears after auto-search completes. The device features an MPU9250, 16 GB SD card, RTC, and supports 0.1–200 Hz.
  • The WitMotion WT901SDCL is a 9-axis data logger with MPU9250, 0.1–200 Hz sampling, 16 GB SD card, RTC, and displays real-time acceleration, angle, GPS, pressure, and temperature data on a laptop.
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WitMotion WT901SDCL 9-Axis Offline Accelerometer Data Logger (MPU9250, 0.1–200 Hz, 16 GB SD, RTC)

WitMotion WT901SDCL 9-Axis Offline Accelerometer Data Logger (MPU9250, 0.1–200 Hz, 16 GB SD, RTC)

WitMotion

$69.00 USD
$69.00 USD
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Overview

WT901SDCL is a 9-axis acceleration data logger designed for offline recording to a built-in 16 GB micro-SD card with RTC timekeeping. Based on an MPU9250-class 9-axis IMU, it integrates a 3-axis accelerometer, 3-axis gyroscope, 3-axis magnetometer, quaternion output and an attitude solver with Kalman filter fusion for stable angle measurement. Data can be viewed live on Windows (graphs, dashboards, 3D demo) or exported as TXT for post-analysis.

What it measures & logs

  • 3-axis acceleration

  • 3-axis angular velocity

  • 3-axis magnetic field

  • Angle (X/Y/Z) and quaternion

  • Time stamp (RTC)

Algorithm & accuracy (from product images)

  • Kalman Filter Fusion with zero-bias automatic detection & calibration

  • Angle accuracy: X/Y 0.05° static, 0.1° dynamic; Z-axis 1° (after calibration and away from magnetic interference)

  • Stability: acceleration 0.01 g, angular velocity 0.05 °/s

  • Attitude stability: 0.01°

Software (Windows)

  • Real-time data graphs and dashboard

  • 3D display/demo (car, head, plane, cube) to visualize sensor posture

  • Data record & playback

  • Configuration settings (rate, ranges, bandwidth)

  • TXT export for analysis

Offline logging workflow (SD card)

  • All data saved to the 16 GB SD card (offline).

  • Recorded TXT files can be converted and replayed in the software.

  • A SET.TXT config file is auto-generated on the SD card; edit to apply options such as:

    • Acc range: ±2/±4/±8/±16 g

    • Gyro range: up to ±2000 °/s

    • Bandwidth presets (e.g., 256 Hz, 188 Hz, 98 Hz, 42 Hz, 20 Hz, 10 Hz, 5 Hz)

    • Output rate selections from 0.1 Hz to 200 Hz (200 Hz default)

Connections & development

  • Windows connection: install CH340 driver → connect → run MiniIMU.exe → auto-search to view data.

  • Dev kits & examples: Manuals, drivers, Windows software, and sample codes for STM32, Arduino, 51 MCU, Windows C/C#, Matlab.

Specifications

No. Parameter
Name 9-axis Acceleration Data Logger
Model WT901SDCL
Supply Voltage 3.7 V battery / 5 V USB power
Current < 40 mA (recording), < 50 µA (standby)
Volume 51.3 mm × 36 mm × 15 mm
Interface TTL wired communication / SD-card wireless storage (offline logging to SD)
Measured dimensions 3-axis acceleration, gyroscope, angle, magnetic field; quaternion
Range Acceleration: ±2/±4/±8/±16 g (selectable); Angular speed: ±2000 °/s; Angle: X/Z ±180°, Y ±90°
Stability Acceleration 0.01 g; Angular velocity 0.05 °/s
Angle Accuracy X/Y dynamic 0.1°, static 0.05°; Z-axis 1° (post-calibration, away from magnetic interference)
Mag Field Accuracy 1 mg
Attitude Stability 0.01°
Output Content Time, acceleration, angular velocity, angle, magnetic field
Output Frequency 0.1–200 Hz (default 200 Hz)
Baud Rate 2400–921600 bps
Battery Lifetime ≈5 hours

 

Details

WitMotion WT901SDCL Accelerometer, A 9-axis data logger with 16GB SD card, RTC, accelerometer, gyroscope, magnetometer, and Kalman filter for precise motion tracking.

9-axis data logger with 16G SD card, RTC timekeeping, 3-axis accelerometer, gyroscope, angle, magnetometer, quaternion, and Kalman filter.

WitMotion WT901SDCL Accelerometer, The WitMotion WT901SDCL uses Kalman Filter Fusion and zero-bias calibration for high-angle accuracy, with free software for real-time attitude measurement and data visualization.

WitMotion WT901SDCL uses Kalman Filter Fusion with zero-bias calibration for high-angle accuracy. Comes with free software for real-time attitude measurement and data visualization on laptop.

WitMotion WT901SDCL Accelerometer, WITMOTION software provides data recording, 3D visualization, graphs, dashboards, and Windows compatibility for real-time, easy data analysis.

WITMOTION software offers data record, 3D display, graphs, dashboard, settings, and Windows compatibility. Real-time visual graphs simplify data monitoring with clear, easy-to-read outputs for quick analysis.

WitMotion WT901SDCL Accelerometer, 3D demo visualizes sensor motion with intuitive display, robust storage, TXT export, precise timestamps, and multi-axis readings.

3D demo visualizes sensor motion with intuitive display. Offers robust data storage, export to TXT format for detailed tracking, precise timestamps, and multi-axis readings.

WitMotion WT901SDCL Accelerometer, The WT901SDCL acceleration data logger features 9-axis sensing, compact size, low power consumption, and multiple interfaces, with a 5-hour battery life.

Acceleration data logger WT901SDCL offers 9-axis sensing, 3.7V/5V power, <40mA current, compact 51.3x36x15mm size, TTL/SD interface, ±2/4/8/16g acceleration, ±2000°/s angular speed, 0.1° angle accuracy, and 5-hour battery life.

WitMotion WT901SDCL Accelerometer, Guide to connect WitMotion WT901SDCL to Windows PC: download tutorial, install CH340 driver, connect cable, run MiniIMU.exe. Development kits include STM32, Arduino, 51, Windows C++, MATLAB, with manual, drivers, software, and sample codes.

Connection guide for WitMotion WT901SDCL with Windows PC: download tutorial, install CH340 driver, connect cable, run MiniIMU.exe. Development kits include STM32, Arduino, 51, Windows C++, MATLAB, with manual, drivers, software, and sample codes.

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