ICM-45686 & AK09940A Advanced Low-Noise 9-Axis IMU Motion Sensor Module

Overview

 

The SM-ICM45686-AK09940A motion sensor module is a cutting-edge solution for developers and innovators looking to integrate precise motion tracking into their projects. Featuring a combination of the TDK ICM-45686 IMU and the AKM AK09940A magnetometer, this module offers unparalleled accuracy and reliability. Its dual-purpose design allows for easy integration, serving both as a breakout board for rapid prototyping and as a surface-mount device (SMD) for direct integration onto custom PCBs. Whether you're working on IoT devices, robotics, VR/AR controllers, or wearable technology, the SM-ICM45686-AK09940A is engineered to meet the demands of the most advanced applications.

 

Datasheet

NOTE: For SlimeVR nRF firmware https://github.com/SlimeVR/SlimeVR-Tracker-nRF, makesure to dsiable IMU external clock for more reliable results.  

 

Key Features

• 9-Axis Motion Tracking: Combines a 6-axis IMU (gyroscope and accelerometer) with a 3-axis magnetometer for comprehensive motion sensing.
• Low Noise and High Precision: Ensures accurate data capture even in dynamic environments.
• Dual-Purpose Integration: Designed for flexibility, the module can be used as a breakout board for prototyping or as an SMD for direct integration onto customer PCBs.
• Low Power Consumption: Optimized for extended battery life, making it perfect for portable and wearable devices.
• Versatile Connectivity: Supports various platforms and applications, ensuring seamless integration into your projects.

TDK ICM-45686 IMU

• 3-axis gyroscope
  • Gyroscope range: ±15.625 to ±4000 degrees/sec
  • Sensitivity scale factor: 8.2 to 2097.2 LSB
  • Low noise: 3.8 mdps/√????????
  • Shock tolerance: 20,000g
• 3-axis accelerometer
  • Accelerometer range: ±2g to ±32 g
  • Sensitivity scale factor: 1024 to 16,384
  • Low accelerometer noise: 70 µg/√????????
• Configurable serial interface
  • I2C @ 125 KHz, 400 KHz, 1 MHz, or
  • SPI up to 24 MHz
• Low noise and low power modes support
• Output data rate
  • Low noise mode: 12.5 Hz to 6400 Hz
  • Low power mode: 1.5625 Hz to 400 Hz
• 2 programmable interrupt pins with 5 configurable interrupt events
• Wake-on-motion for low power operation of host controller
• Dual interface (UI + AUX) allowing host controller to communicate with another I2C/SPI device via the ICM-45686’s main serial interface
• Digital output temperature sensor
• Self-test

AKM AK09940A Magnetometer

• 3-axis magnetometer
• 18-bit data out for each 3-axis magnetic component
  • Range ±1200 ????T (max)
  • Sensitivity 10 nT/LSB (max)
• Serial interface
  • I2C @ 125 KHz (standard mode), 400 KHz (fast mode)
  • SPI up to 24 MHz (not available on SM-ICM45686-AK09940A sensor module)
• 1 programmable interrupt pin for data-ready (DRDY) signaling
• Selectable sensor drive mode
  • low power drive
  • low noise drive
  • ultra-low power drive

Specification

• Module name: SM-ICM45686-AK09940A
• Main components:
  • TDK ICM-45686 6-axis IMU
  • AKM AK09940A 3-axis electronic magnetometer
• Operating supply voltage
  • System power supply voltage (VCC): 1.8V to 3.6V
  • Digital I/O interface supply voltage (VDDIO): 1.8V to 3.6V
• Operating temperatures: -30 0C to +85 0C
• Dimensions: 16.0 x 18.0 (unit: mm)

Application

• IoT Devices: Enable precise motion tracking for smart devices, enhancing automation and functionality.
• VR/AR Controllers: Deliver immersive user experiences with accurate motion sensing for gaming and simulations.
• Wearable Technology: Ideal for fitness trackers, health monitors, and other compact devices.
• Robotics: Improve motion control and navigation in robotic systems, ensuring smooth and accurate operations.
• Gaming and Head-Mounted Displays: Enhance gameplay and interaction with reliable and responsive motion tracking.

Why Choose the SM-ICM45686-AK09940A?

• Cutting-Edge Technology: Combines industry-leading sensors for unmatched performance.
• Flexible Integration Options: Dual-purpose design supports both prototyping and production-ready applications.
• Reliable and Robust: Designed to operate in diverse environments with consistent accuracy.
• Easy to Use: Seamlessly integrates into various platforms, reducing development time and complexity.