Is it possible to use the PID inside another class?

[studi1882]

Hi everyone, I have to do some pre- and post calculations which I want to do in a class. Within this class I want to use the PID class. If I use the PID package inside a sketch everything works fine. But when I use it inside a class it does shows following error: "no match for call to '(PID) (double, double, double*, double, double, double, const PID::Direction&)'"

My files look approximately:

temp_controll.h:

include

class Temp_controll { public: Temp_controll(double now_temperature, double set_current, double wanted_temperature) { my_PID(&my_now_temperature, &my_int_current, &my_wanted_temperature,(double) 2,(double) 5,(double) 1, DIRECT)} PID my_PID; }; Because out of the 7 variables the first 6 seem to fit, I was wondering if it might be the last variable (the direction) which is wrong, because it is referenced. I didnt figure out a way to fix it.

I would be really happy if you could help me and thanks in advance!

Vheers

Paul

P.S.: I hope this is the right place to ask such a question if not, I am happy if you tell me the right place.

[TuxLeon]

The problem is the way you instantiate your PID.

The example should fix your compiler error.

class Temp_controll { public: Temp_controll(double now_temperature, double set_current, double wanted_temperature) { my_PID = new PID(&now_temperature, &set_current, &wanted_temperature,(double) 2,(double) 5,(double) 1,DIRECT); } PID *my_PID; };

[studi1882]

Thank you a lot for your fast and helpful answer. That solved my problem! For the next classes I know how to do it! Cheers and thanks again :)