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Nguyen Hoan Hoang
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9 Axis IMU Sensor Board

9 axis IMU sensor board for VR full body motion tracker without camera

9 Axis IMU Sensor Board
 
  • thumbnail-img
 

Hardware Components

  • C1, C2, C3, C4 - Capacitors 0.1uF 10V

    X 4

  • R1, R2, R3, R4, R5, R6, R8, R9 - Resistor 100K 10%

    X 8

  • ICM-45686 accel + gyro 6 axis imu

    TDK
    X 1

  • AK09940A - AsahiKasei Ultrahigh precision 3-axis Electronic Magn

    AsahiKasei
    X 1

  • TCR3UM185A - TOSHIBA Ultra low quiescent current LDO 1.85V

    Toshiba
    X 1

Story

This is a 9 axis motion sensor breakout board.  

- ICM-45686 (Accelerometer & Gyroscope)

- AK09940A (Magnetometer).

- ICM-45686 Interface configurable SPI or I2C

- AK09940A interface I2C independent or connect to ICM-45686 auxiliary interface

- Independent VCC (main power input) and VDDIO (power for I/O pins)

- Onboard LDO for AK09940A that operates at 1.8V

- VCC range 1.8V-3.5V 

- VDDIO range 1.8V-3.5V

 

Ideal for use in VR Full Body Motion tracking such as SlimeVR. 

 

Code

  • SlimeVR tracker firmware for Nordic nRF series

    https://github.com/SlimeVR/SlimeVR-Tracker-nRF
    View

  • SlimeVR tracker firmware for ESP32

    https://github.com/SlimeVR/SlimeVR-Tracker-ESP
    View
Schematic and Layout

  • Schematic

    Screenshot_2025-03-31_at_10.53.40_AM_62660763167eaac8da8dff.png
    Download(0)

  • Gerber

    SM-ICM456896-AK09940A_GerberPickPlace_184889872267eaad1732f7f.zip
    Download(0)
Topic
View All
#VR motion track
License: Attribution-ShareAlike (CC BY-SA)

9 Axis IMU Sensor Board

9 axis IMU sensor board for VR full body motion tracker without camera

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  • Rakesh K
    great project!
    Mar 31,2025 0 comments
    Reply

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