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Q: 

Scaling PID (Proportional Integral Derivative) Output

I have implemented a PID function using the formula,

correction = Kp * error + Kd * (error - prevError) + kI * (sum of errors)

What should I do to keep my output between a certain range? say 0-255 If I disregard any value not between 0 to 255 it produces a jiggly behavior?

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