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I know for years we have just used software. With some drive systems it's hard though cause you need to overcome static friction with the drive system, so if you are pushing up and accelerating, it could slow it down to the point where the motors are grinding yet they're not going quick enough to move the robot yet, and in the long run that could destroy a motor. I know we HAVE used software though and just simply put a loop to determine how much change in the joystick has happened since the previous loop and used a math equation to calculate how much it should go up each loop, and with software you can make constraints to avoid the motor problem I was talking about, whereras with a capacitor, that's going to modify it the whole time. Just my 2 cents, I might be wrong though.
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Chopsaw? Chopsaw.
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