9 axis IMU / AHRS module with embedded sensor fusion that delivers industrial grade performance at consumer grade prices

The FSM300/FSM305 is a self-contained AHRS/IMU module integrating a 3-axis accelerometer, 3-axis gyroscope, and 3-axis magnetometer, along with a low-power 32-bit ARM Cortex M0+ MCU running Ceva’s high-performance sensor hub software stack. The small, turn-key component benefits developers and integrators through faster time-to-market, reductions in development time, reduced BOM cost, and the highest precision and quality.

Calibration Options:
The FSM300 is calibrated about the z-axis, providing increased precision and consistency across devices for applications involving planar motion. Proprietary dynamic calibration algorithms internal to the FSM300 improve performance over time.
The FSM305 features full 3D factory calibration for applications demanding high-accuracy orientation measurements beyond what dynamic calibration provides.


As a per-device calibrated turn-key module, the FSM300/FSM305 can easily be integrated into your design to produce precise 6- or 9 axis motion for a broad range of motion applications

Utilize the highest performance of each module with per-device calibration about the Z-axis (FSM300) and all axes (FSM305)
Enable fast prototyping with the protocol of choice (I2C, SPI, and UART) using a turn-key module
Simplify and accelerate sensor fusion integration with various UART output modes

Main Features

  • MotionEngine™ 9 Axis and 6 Axis Sensor Fusion
  • Turn-key module accelerates prototyping
  • Calibration
    • Dynamic Sensor Calibration adjusts for accelerometer and gyroscope bias changes over factors like time and temperature
    • Per-device calibrated for the highest performance
  • Application-specific features with configurable modes specialized for various use cases
  • Activity tracking with classification of walking, running, standing, in-vehicle, on-bike
  • Intelligent Power Management using activity classifiers and wake-on-motion
  • Flexible control via I2C, SPI or UART Interfaces


To purchase or quote of chips and modules, please refer to your regional distributor listed below.

For any other support issue, please make sure to fill out Ceva’s Contact us form.

You do not need to send a separate email once this contact form has been submitted.




Regions:Americas and Global
Location:Thief River Falls, Minnesota, US
Web:Online Store


TOP-electronics USA

Regions:USA, Canada, Mexico, South and Central Americas
Location:Tucson, Arizona, USA
Web:Online Store



Regions:Americas and Global
Location:1000 North Main Street, Mansfield, TX 76063 USA
Web:Online Store


SANSHIN Electronics Co. Ltd.Uniqcore
Regions:Japan, Korea, Hong Kong, Malaysia, Singapore, Taiwan, Thailand and ChinaRegions:South Korea
Location:Tokyo, JapanLocation:Hwaseong-si, Gyeonggi-do, Korea
Contact:Masayuki YasuiContact:Brent Kwon


Fortune Techgroup JIDI Electronics Co. Ltd.
Regions:China, Taiwan, and Hong KongRegions:China
Location:Shenzhen, ChinaLocation:Suzhou, China
Contact:Brea FanContact:Dream Wang



Regions:Europe, Israel and India
Location:Krimpen aan den IJssel, Netherlands
Web:Online Store