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I hope you're doing well. I have some questions regarding the PID functions.

Can you please explain to me the following commands? I shall be very thankful to you.

  • PID myPIDX(&InputX, &OutputX, &SetpointX, Kpx, Kix, Kdx, REVERSE);
    What is meant by reverse and why we used & with input, output and setpoint?

  • myPIDX.SetMode(AUTOMATIC);
    What is meant by automatic/manual?

  • myPIDX.SetOutputLimits(80, 110)
    What is meant by the values 80, 110 and what is range 0-255?

  • myPIDX.SetSampleTime(45);
    What is meant by this command? is the time in milli-seconds?

  • myPIDX.Compute();
    How is this function working? I mean what is happening at the back end of the compute function?

Best Regards!

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    The library documentation and/or code would be the best place to start. At the very least a link to the library you're asking about would be helpful. – Dave Newton Jun 12 at 11:21
  • This is the link to this library I'm talking about – John C. Jun 12 at 12:22
  • Can you guide me related to this? My project is 2 DOF Ball Balancing using a PID controller – John C. Jun 12 at 12:22
  • The documentation seems to explain at least some of these fairly well. The code for each is available as well. – Dave Newton Jun 12 at 13:12

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