[ros-users] [Discourse.ros.org] [ROS Projects] IMcoders: easy-to-install (and cheap) odometry sensors

[Andreu Corominas-Murtra]

Hi , thanks to share this very interesting and ingenious approach. 
Why do not use directly the rotation rate provided by the IMU? instead of the absolute orientation, which requires extra computations at IMU level, usually involving a 3D compass, which may not work correctly close to wheels and motors. 
So my proposal would be to directly use rotation rate provided by gyros, and with diff-drive forward kinematics compute platform velocities. 
This would lead to an even smipler approach , where a single 1D gyro could solve the problem (ideally). 
What do you think ?





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