Ipad Air Does Not Recognize Apple Pencil. Apple Pencil is available in two different models. Cap your Apple pencil and leave the two devices be for around 2-5 minutes.
You should check its battery status and confirm if it is charged or not. Heres a list of all iPads that support the first-generation Apple Pencil at the time of writing. Your Apple Pencil may not have any charge left in it.
Apple Pencil pairs with your iPad using Bluetooth.
Try plugging or snapping it to your iPad for at least 10-15 minutes. Heres a list of all iPads that support the first-generation Apple Pencil at the time of writing. Now move your Pencil closer to the iPad and wait until you see the Pencil in the available devices. If Batteries Widget is kept on the Home Screen you can see the battery percentage here.