Quote:
Originally Posted by GeeTwo
The gyroscope does not have to be at the COG of the robot, but it is helpful if it is somewhere near the COG.
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A bit of amplification (with prodding from Ether):
The reason you want the gyro near the CoG is to reduce the accelerations due to roll, pitch, and yaw. This was definitely more important in previous years, when the gyroscope and accelerometer were most commonly located in adjacent square inches of board. It is probably more important these days to put your 'RIO near the CoG than the gyroscope. Of course, the easiest place to mount the gyroscope is on some of that nice flat space on top of the 'RIO, an inch or two from the Analog IO port. It is definitely important to mount the gyroscope board in a horizontal orientation, presuming that you're using it for navigating along the carpet; it measures rotation rate around an axis going through the board.