When I examine the datasheet for the Arduino Micro (couldn't find the Pro Micro on their site, btw) then I see some data pins annotated with a ~ character, and some are not.

For instance, D9 has a ~ annotation, D8 does not.

What does this annotation mean?


1 Answer 1


It means the pin can be a PWM output for use with analogWrite().

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.