Joshua Shriver wrote:
> Can pics be used to generate audible tones?

Only once.

They can, however, generate signals that can be converted to audible tones
by a suitable tranducer, such as a loudspeaker, headphones, piezo element,
etc.

> If so anyone have any info or recommend docs online?

You're question is too vague such that there are too many possible answers
to make it worthwhile picking one.

In general you can use PWM output to make a square wave of a selected
frequency.  You can also use a PWM output at much higher frequency, then
filter it to create a analog signal proportional to the PWM duty cycle.

Perhaps my HAL example project might be of some use, although it's really
ancient at this point.  My development environment has come a long way since
that was written.  It would look different if I were to write it today.


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