how can i connect the speaker

i try the make sound while using pwm, sound command but no good sound out from pic. how can i connect the speaker 16f877.

Put an elco in series with your speaker to avoid dc current into your speaker.
A potmeter to correct the amplitude for the speaker may also help.

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Originally Posted by pcbb

i try the make sound while using pwm, sound command but no good sound out from pic. how can i connect the speaker 16f877.

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A good example of how to hook up a speaker for use with the SOUND command it right there in the PBP manual.