Thak you for your answer JamesC4S.
But i never says that ends with the pwm. The code says: led on, wait, led off, wait, goes to pwm and stay there because i say keep in there between 0-125 for the led.
And also, if it is as you say, at least we should watch how the led increases but we don't see.
This is what i think it says but i'm very new with this. But if you don't mind, could you please tell me how the correct code would be ?.
I have no more ideas....
Thanks again.