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PID library in C

/**********************************************************************************************

  • C PID Library - Version 1.0.1
  • modified my Matthew Blythe [email protected] mjblythe.com/hacks
  • originally by Brett Beauregard [email protected] brettbeauregard.com
  • This Library is licensed under a GPLv3 License **********************************************************************************************/
  • For an ultra-detailed explanation of why the code is the way it is, please visit: http://brettbeauregard.com/blog/2011/04/improving-the-beginners-pid-introduction/

  • This code is also modified to remove the ability to be called at irregular intervals. I assume that most folks coding in raw C can set up a regular timer-based interrupt.