![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
control for robotic arm that can play chess using a granular gripper
Dependencies: Encoder mbed HIDScope Servo MODSERIAL
Fork of chessRobot by
Diff: PID/PID.cpp
- Revision:
- 81:71e7e98deb2c
- Parent:
- 62:6c566e6f9664
- Child:
- 82:4cc8f9ad3fec
--- a/PID/PID.cpp Tue Oct 20 13:39:05 2015 +0200 +++ b/PID/PID.cpp Tue Oct 20 14:25:31 2015 +0200 @@ -55,12 +55,20 @@ void PID::SetTunings(double Kp, double Ki, double Kd) { + if (Kp<0 || Ki<0|| Kd<0) return; kp = Kp; - ki = Ki * SampleTime; // change PID parameters according to sample time + ki = Ki * SampleTime; // change PID parameters according to sample time (in seconds) kd = Kd / SampleTime; + + if(controllerDirection ==REVERSE){ + kp = (0 - kp); + ki = (0 - ki); + kd = (0 - kd); + } } + void PID::SetSampleTime(double NewSampleTime){ if (NewSampleTime > 0 ){ // change ratios for parameters for better computation in compute() @@ -102,6 +110,10 @@ else if(ITerm<outMin) ITerm=outMin; } +void PID::SetControllerDirection(int Direction){ + controllerDirection = Direction; +} + double PID::getKp(){ return kp; }