two gyros?

[tseres]

just a question (because i might have to look into gyros next year): if the robot was moving faster than 70 deg/s, even though you have a faster gyro, wouldn't the slower one not be able to keep up, or lose heading?

[Salik Syed]

Originally Posted by tseres

just a question (because i might have to look into gyros next year): if the robot was moving faster than 70 deg/s, even though you have a faster gyro, wouldn't the slower one not be able to keep up, or lose heading?

First off Gyros measure acceleration, so it doesn't really matter if you are turning 70 deg/s you could turn 500 deg/s at 0 acceleration and the gyro could probably handle it. It is angular acceleration that you need to worry about. I think the Gyros we have support 300 deg/s/s which is probably enough for almost all FIRST applications (Actually it might 150 if where using the ADXRS150 series gyros)

Either way I don't really think that you need two unless there's a good reason (i.e sensing if the robots tilted etc...)