Apple Pencil
How do I add my Apple Pencil to use on iPad?
Question marked as
First, compatibility. Verify that your Apple Pencil is compatible with your iPad:
Apple Pencil compatibility - Apple Support
Assuming that you have an Apple Pencil that is compatible with your iPad, this support page may be helpful with pairing and use of the Pencil with your iPad:
Connect Apple Pencil with your iPad - Apple Support
If you continue to experience difficulties, here is one of the better troubleshooting guides:
https://appletoolbox.com/apple-pencil-not-working-heres-our-troubleshooting-guide/