PID learning - Propotional - Integral - Derivative for control system

Very simple and easy to understand for beginner. P is for propotional, I is for integral and D is for derivative.

A function is created (from the input of the user), then how the controller wants to follow the command. Derivative is related to the slope of the curve, while I is related to the area under the curve and P is propotional or how the controller follows the input from the user.

And this time its more details and there are code of programming involved. But its is quit hard to understand. 

So, this is the application of PID for multicopter. Whereas the application of PID into the arduino uno and how we can define the constant of P.I.D in the formula. Although its look easy but it can be complicated as it could be. Therefore why dont we try it in our labs and see how this PID works. Watch the video ok!