Fermion: BMI323 6DOF IMU Sensor for High-Rate Motion Sensing

SKU: DF-SEN0693
Sale price $17.00 NZD
977 units ships in 7 to 10 days

The Fermion BMI323 6DOF IMU Sensor is a compact inertial measurement module built around the Bosch BMI323, combining a 3-axis accelerometer and a 3-axis gyroscope in a 16 mm × 16 mm board. It delivers high-rate acceleration and angular velocity data through an I2C interface, making it suitable for embedded motion sensing, wearable devices, robotics, battery-powered IoT nodes, and compact product prototypes.

With configurable measurement ranges, output data rates up to 6400 Hz, a 2048-byte FIFO buffer, low-power operating modes, and built-in hardware motion detection, this module provides a practical balance of sensing performance, power efficiency, and integration flexibility.


Bosch BMI323 6-Axis Motion Sensing

The BMI323 integrates a 3-axis accelerometer and a 3-axis gyroscope for detecting linear acceleration, angular velocity, tilt, vibration, and motion changes. The accelerometer supports ±2 g to ±16 g measurement ranges, while the gyroscope supports angular-rate ranges from ±125 °/s to ±2000 °/s.

This makes the module suitable for applications such as robot tilt feedback, wearable motion tracking, compact motion controllers, fitness devices, smart home sensors, vibration monitoring, and embedded product evaluation.


High-Speed Data Output with FIFO Buffer

The sensor supports output data rates from 12.5 Hz to 6400 Hz in Normal and High Performance modes, allowing flexible configuration for both low-speed monitoring and high-speed motion capture. The integrated 2048-byte FIFO buffer helps maintain stable data transfer during high-frequency sampling and reduces the risk of data loss when the host controller is processing other tasks.


Hardware Motion Detection for Lower MCU Load

The built-in motion engine can detect common motion events directly on the sensor, including step counting, tap, tilt, free-fall, and activity recognition. Event results can be sent through programmable interrupt pins, allowing the host MCU to stay in a lower-power state until motion is detected.

This hardware-assisted approach is especially useful for battery-powered devices, wearable electronics, portable controllers, and IoT nodes that need continuous motion awareness without constant polling.


Low-Power Operation for Battery-Powered Devices

Multiple operating modes are available, including Sleep, Low Power, Normal, and High Performance. Low Power mode consumes only 356 μA, making the module suitable for systems that require long operating time, motion-triggered wake-up, or periodic movement detection.


Compact Fermion Form Factor for Embedded Integration

The 16 mm × 16 mm PCB is designed for compact embedded applications. The module includes an SH1.0-5P connector for cable-based prototyping and 2.54 mm pin header holes for soldered installation. The default I2C address is 0x69 and can be changed to 0x68 through the onboard address pad.

Applications:

  • Wearable devices and fitness trackers
  • Step counting and activity detection
  • Robot tilt and movement feedback
  • Compact drones and motion-control prototypes
  • Battery-powered IoT motion nodes
  • Smart home motion and vibration sensing
  • Tap, tilt, free-fall, and orientation interaction
  • Embedded sensor performance evaluation
  • Arduino, ESP32, and Raspberry Pi motion-sensing projects
  • Specification:

    Basic Parameters

  • Operating Voltage: DC 3.3V
  • Operating Current: 720μA
  • Low Power Current: 356μA
  • Communication Interface: I²C
  • Connector Type: SH1.0-5P connector / 2.54mm pin header holes
  • I²C Addresses: 0x69 (default) / 0x68
  • Programmable Interrupt Pins: ×2

  • Accelerometer Parameters

  • Accelerometer Measurement Ranges: ±2g, ±4g, ±8g, ±16g
  • Accelerometer ADC Resolution: 16-bit
  • Accelerometer Sensitivity
          ±2g range: 16384LSB/g
          ±4g range: 8192LSB/g
          ±8g range: 4096LSB/g
          ±16g range: 2048LSB/g
  • Accelerometer Sensitivity Error: ±0.5%
  • Accelerometer Zero-g Offset: ±50mg
  • Accelerometer Output Data Rate (ODR)
          High Performance / Normal mode: 12.5Hz ~ 6400Hz
          Low Power mode: 0.78125Hz ~ 400Hz

  • Gyroscope Parameters

  • Gyroscope Angular Rate Ranges: ±125, ±250, ±500, ±1000, ±2000°/s
  • Gyroscope ADC Resolution: 16-bit
  • Gyroscope Sensitivity
          ±2000°/s range: 16.384LSB/(°/s)
          ±1000°/s range: 32.768LSB/(°/s)
          ±500°/s range: 65.536LSB/(°/s)
          ±250°/s range: 131.072LSB/(°/s)
  • Gyroscope Sensitivity Error: ±3% (without self-calibration), ±0.7% (after self-calibration)
  • Gyroscope Zero-Rate Offset: ±1°/s
  • Gyroscope Output Data Rate (ODR)
          High Performance / Normal mode: 12.5Hz ~ 6400Hz
          Low Power mode: 0.78125Hz ~ 400Hz

  • Physical Dimensions

  • PCB Size: 16mm × 16mm
  • Mounting Hole Spacing: 11mm
  • Mounting Hole Diameter: 2mm
  • Product Includes:

  • Fermion: BMI323 High-precision 6 DOF IMU Sensor ×1
  • SH1.0-5P Sensor Cable ×1
  • 2.54mm Black Single Row Pin Header – 10-Pin ×1
  • Shipping rates Australia wide and New Zealand

    Please add the items in cart and proceed to checkout to calculate shipping cost. We have range of shipping options once goods are ready to dispatch. 
    1. Regular shipping: Goods will be shipped using Australia post regular shipping service. 
    2. Express shipping: Goods will be shipped using Australia post EXPRESS shipping service. 
    3. Express split shipping: Local stock from Melbourne will be shipped ASAP (1 business day) using EXPRESS shipment while remaining items from overseas stock when arrived in Melbourne shipped using second EXPRESS shipment. 
    4. Pick up from Thomastown, Melbourne is available on appointment between 9 am to 3 pm during business days. 

      

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    Dispatch time

    Unless expressly agreed otherwise with you, we will not commence delivery of an order until we have received cleared payment of the purchase price in full.

    All orders placed before 11 am AEST (Monday to Friday) will ordinarily be processed on the same day.

    We will endeavour to ship the Products by the applicable time indicated on the website, but all times are indicative only.  All shipping times are dispatch times only, and actual delivery dates will depend on the shipping method chosen, delivery address and delivery service provider. 

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    *Go to Australia post delivery time calculation to get various Australia post service in your area please use our shipping postcode Thomastown, 3074 as the "from" address - https://auspost.com.au/parcels-mail/delivery-times.html?ilink=tools-open-deliv-times.

    Shipping Destinations

    We ship all products throughout mainland Australia, Tasmania and New Zealand - Including Darwin, Melbourne, Sydney, Tasmania, Adelaide, Brisbane, Perth, all metro and regional areas but do not deliver to areas in Australia where the Australia Post delivery network is not available. 

    Check Express shipping delivery coverage area at - http://auspost.com.au/parcels-mail/delivery-areas.html

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    Note that if a delivery is left unattended at the shipping address and is subsequently stolen then the theft is your responsibility, not ours.

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