Thread: Deadband Help
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Unread 19-02-2013, 19:33
garyk garyk is offline
Programming Mentor: 668, 972, 2643
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Join Date: Dec 2006
Rookie Year: 2005
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garyk is a jewel in the roughgaryk is a jewel in the roughgaryk is a jewel in the roughgaryk is a jewel in the rough
Re: Deadband Help

Another way to create deadzone-behaviour is to square the joystick X, Y, or Z value (and preserve the original sign, so a negative joystick value gives a negative result). For example, a js value of 0.5 gives a square of 0.25, but the maximum value of 1.0 still gives 1.0.

The way I learned this is an example of why I love to be a mentor. I'd written the algebra to implement a dead zone and with two slopes - it was complicated and when I tried to teach it at a WRRF programming workshop I confused most of the students. Afterwards a student (I think from FRC1700, Gatorbotics) told me about the square trick - it did what I wanted and was far easier to teach and implement.
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