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Unread 29-10-2014, 01:28
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seg9585 seg9585 is offline
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Re: Best gyro for frc.

Quote:
Originally Posted by scottandme View Post
This guy if you don't want to use SPI:

EVAL-ADXRS642Z - about $75 from mouser, digikey, etc

http://www.analog.com/en/mems-sensor...s/product.html
How reliable is this gyro as an analog voltage output? The gyro on the ADXL345 (FIRST Choice, etc) simply didn't work for us, it had way too much drift to be useful. A typical 2-minute match resulted in >45 degrees of drift! Because of this, I've become skeptical of analog sensors requiring integration for attitude/position calculation (too much noise on the A2D probably led to these problems)
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