RGB Fading Using 3 LEDs and PWM

[NavMicroSystems]

Tissy,

the Rainboow example does not use any Hardware PWM,
(not even PBPs Software PWM)

The Advantage of Hardware PWM is it runs in Background
while the Main program is doing other things.

With Software PWM you have got to keep your code small and you don't have much MCU time spare to do other things if you want to avoid "flickering" effects.

As you are developing on an 16F876 (which has HPWM)
you can easily find out the difference by simply trying it,

see PBP Manual "PWM" (Section. 5.61)
and "HPWM" (Section. 5.29)"
for reference.