Thread: Help With Gyro
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Unread 10-01-2008, 21:09
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Re: Help With Gyro

The mechanism inside the chip is sensitive to temperature.
The chips were designed to be used in aviation where temperature drops the higher you climb till you are operating in sub-freezing temps.
Providing the temperature of the chip allows the software to correct the values from the twist sensor to give adjusted yaw rates.

For the purposes of the 2.5 minute game on a level playing field indoors, doing the bias calculation at the start is good enough. Ignore the temperature.

The temperature will remain stable enough - unless you have it mounted right next to a heater.

Temperature is one factor that changes from day to day and why storing the bias in eprom is a bad idea.

BTW: Remember output T - Temperature, it's the other one you want.
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Mentor FRC 1778 "Chill Out", FTC 3018, 3940 "Hawks", 4434 "Heat Misers"

"Everything should be made as simple as possible, but no simpler."