Thread: Gyro Troubles
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Unread 30-01-2005, 13:52
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Re: Gyro Troubles

Quote:
Originally Posted by SteveO
Thanks, I think it is something obvious I am missing. I'm still not quite sure what the right axis would be, but when I rotate it on any axis (I've tried all directions) I don't get a reading that looks any different than when it is clamped to the table.
The axis of revolution is viewed from the top of the chip. Look at the top and twist left or right while bottom of device is on table. You can also check the output voltage with a voltmeter. expect the voltage to rise or fall from about 2.5 as the gyro is in rotation and settle back to 2.5 while not rotating. Noise in the system tends to make 10 bit math not that stable unless you code for limiting the drift and noise. I haven't looked through Kevin's gyro code for this year. These issues may already be addressed. Measurement are from testing we did last year.