Hi, On Wed, 17 Nov 1999, Thomas C. Sefranek wrote: > Mike M wrote: ... > Yes, the PWM machine is a self serving port. Nope. The question referred to 16C84 which has definitely no PWM port. You can do it in a Timer ISR, though. Of course, it'd be better to choose such PIC which does have a built-in PWM generator, e.g. 16C62 and up, I guess. Regards, Imre