I need some help in making a program which can generate pwm on 3-5 pins. These pins will be connected to MOSFETS and they will in turn control a bunch of LEDs.

Is it possible to have a different duty cycle on each pin? I would create it in such a way that once PIC is powered up all 3 or 5 channels have different dutycycles and thus the bunch of LEDs glow at different intensities which keep changing in a loop.

I would like to achieve this with 16F676. I have 12V battery available which will be the power source for the system.

Any ideas?

Thanks in advance