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Unread 09-04-2003, 22:16
Bruce C.'s Avatar
Bruce C. Bruce C. is offline
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#0647 (The Cyber Wolf Corps)
Team Role: Engineer
 
Join Date: Feb 2002
Rookie Year: 2002
Location: Killeen, Texas
Posts: 65
Bruce C. will become famous soon enough
Team 647 used the gyro in autonomous mode to make nice, consistent turns during auto. We didn't use any other electronics or custom circuits to integrate the yaw rate for angular position. Instead, we connected the gyro output directly to one of the analog sensor inputs. By doing a little math we determine that by sampling the gyro count each program loop, and accumulating the count in a 16 bit counter, that after 5263 counts we had made a 90 degree right turn. For a left turn we initialized the counter at 10,000 and decremented the count down by the same number of counts. It works very consistently, and doesn't seem to be very noise sensitive.

After Nats I'll write up a little paper about how it works.

Bruce C.
Wednesday night, in Houston, looking forward to tomorrow.
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