MTw Awinda

Highly accurate, small and lightweight 3D human wireless motion tracker. Easy to integrate wireless human motion tracker for real-time applications. Used in a body area network, these portable and unobtrusive wireless trackers are ideal for developing customized wearable solutions. The Awinda radio protocol ensures time-synchronization better than 10 µs between each MTw on a wireless body area network.

MTw Awinda

Wireless Motion Tracker


  • Easy to integrate using extended API
  • Providing highly accurate, drift-free 3D orientation data
  • Data multiple MTw’s is time-synchronized to within 10Ms using patented Awinda protocol



  • Workplace Ergonomics
  • Virtual Verification

Health & Safety

  • Therapy
  • Prevention
  • Rehabilitation
  • Pedestrian Navigation


  • Injury prevention
  • Performance science


  • Biomechanics
  • Gait Analysis

Virtual Reality

  • Training & Simulation
  • Head tracking
  • Game

Human Machine Interaction

  • Robot


MTw Whitepaper


MTw Awinda


System Integration

Integration with the MTw is very straightforward with the Xsens MT Software Suite. The MT Software Suite is an easy-to-use API which can be interfaced with via a COM, C and C++ interface with support for Windows and Linux. The components of the MT Software Suite are

Xsens Device API Xsens APIEasy to use Xsens Device API to communicate with the MTw Awinda interfaces for common programming languages.
Example code Example code To make starting with the MTw even easier, example code is provided for various platforms, amongst others Matlab and Linux.
MT Manager An intuitive GUI for Windows, including configuration and recording tools, graphs and a wireless configuration setup to help understand the Xsens Awinda System.
Magnetic Field Mapper Magnetic Field Mapper An algorithm and tool to calibrate the MTw for hard and soft iron effects. The calibration can be done during normal operation; there are no restrictions on the trajectories or rotations.
Documentation Documentation Full (HTML)-documentation on the MTw, API, SDK and application notes.

Tried and tested synchronization of data acquisition systems with Xsens:

Synchronization with EMG Systems
Synchronizing with Noraxon EMG
Synchronizing with Cometa Wave
Synchronizing with Delsys Trigno EMG
Synchronizing with BTS FREEEMG
Synchronizing with TMSI EMG
Synchronizing with Biometrics DataLOG

Synchronization with Optical Systems
Synchronize with Vicon

Synchronization with Pressure Mats
Synchronize with GAITRite Pressure Mat

Synchronization with EEG systems
Synchronize with ANT Neuro


Biomechanical Analysis

Sports Performance Science



MT Software Suite


The MTw Awinda includes the MT Software Suite containing:

MT Manager Software

An easy-to-use graphical user interface allowing real-time view of 3D orientation and sensor data, recording of data streamed from the MTw’s through the Awinda Station and export to ASCII files for further analysis.

Software Development Kit

The SDK gives direct and real-time access to the output of the MTw motion trackers, allowing users to configure and easily integrate the MTw’s in their own applications.

It includes drivers for various operating systems, documentation and various other useful tools. Communication is made easy with the Xsens Device API (XDA) which is completely in C-code. The MT SDK includes the following development tools:

  • C++ wrapper
  • Examples for C, C++ and Matlab.
  • Supported operating systems: Windows and Linux.
  • DLL for both 32-bit and 64-bit systems.
  • Extensive documentation on the MTw, the XBus protocol and the SDK (PDF and HTML)

More information and download of the MT Software Suite




Tracker placement Easy fastening with Velcro straps
Internal sampling rate 1000 Hz
Latency 30 ms
Buffer time (retransmissions) 10 s
Battery life (continuous use) 6 Hours
Dimensions Tracker 47 x 30 x 13 mm (1.85 x 1.18 x 0.51 in)
Weight 16 g (0.56 oz.)
Operating temperature range 0°C – 50°C

Wireless update rates

1 MTw 120 Hz
5 MTw 120 Hz
9 MTw 100 Hz
10 MTw 80 Hz
20 MTw (maximum) 60 Hz


Range Awinda station Awinda dongle
Open space Up to 50 m (165 ft.) Up to 20 m (65 ft.)
Office space Up to 20 m (65 ft.) Up to 10 m (33 ft.)
Wireless protocol Xsens patented Awinda protocol 1
Receiver Awinda Station / Awinda Dongle


Static Accuracy (Roll/Pitch) 0.5 deg RMS
Static Accuracy (Heading) 1 deg RMS
Dynamic Accuracy (Roll/Pitch) 0.75 deg RMS
Dynamic Accuracy (Heading) 1.5 deg RMS

Tracker components

Dimensions 3 axes 3 axes 3 axes
Full scale ± 2000 deg/s ± 160 m/s2 ± 1.9 Gauss

1 The patented Awinda protocol ensures highly accurate time synchronized data sampling
(within 10 μs) in all connected MTw’s, which is essential for accurate joint angles.


First-time users are advised to start with an MTw Awinda Bundle containing all components to get your project up and running as quick as possible.


MTw Awinda Development Kit

The MTw Awinda DK can be used as a starter kit for integration in your wearable project.
1-20 x MTw Awinda Wireless 3DOF Motion Tracker
1 x Awinda Receiving Dongle
1 x Charging cable MTw
1 x MTw Software Development Kit
1 x Protective Box

MTw Awinda Research Kit

The MTw Awinda Research Kit is a complete research solution for measuring 3D human kinematics.
6 x MTw Awinda Wireless 3DOF Motion Tracker
1 x Awinda Recording and Docking Station
1 x Awinda Receiving Dongle
1 x Awinda Full Body Strap Set
1 x MTw Software Development Kit
1 x Suitcase MTw Awinda DK


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