Cofee Roaster pt2

Hello again
I installed the library the PID library and the Liquid Crystal for the cofee roaster code.
Yet, now the problem is that It says “PID does not name a type” when compiling.
Can someone help me? thanks

tostadora_de_cafe_codigo.ino (9.57 KB)

You include the PIDController library but use the interface of the PID library. I'm not surprised that the compiler complains.

Then how can I make it work?

BaoH: Then how can I make it work?

Look at the example that comes with the library? It will show you how to use the library.