Inertial Motion Unit


Started: 2016-01-01
Ongoing project


This module integrates a I3G4250D Gyroscope and ADXL343 onto a breakout board for use in the modular8 prototyping system.

The I3G4250D is a 3-axis MEMS gyroscope from ST Microelectronics.

Datasheet link I3G4250D

The ADXL343 is a 3-axis MEMS accelerometer available in a LGA-14 package with I2C and SPI communication abilities.

Datasheet link ADXL343

Design and Procurement of the Breakout Module

This gyroscope is only available as a surface-mount LGA-16 package. The 4x4x1.1mm dimensions of the package along with the lack of leads to solder to make it very difficult to work by hand so a breakout module is needed for interface with the Open Robotics microcontroller network.

Design files are available here, the CAD tool used is KiCad.