<P> The Apple Pencil is designed for creative work, and has pressure sensitivity and angle detection . Its battery charges while it is plugged into a female Lightning receptacle . </P> <P> Internally it has an ARM - based Cortex - M3 computer, a Bosch Sensortech 3 ‐ axis accelerometer, and uses the Bluetooth Low Energy standard to communicate with the iPad . </P> <P> On October 30, 2018, at the Apple Special Event, Apple announced the second generation of Apple Pencil . The new Apple Pencil attaches magnetically with a snap onto the side of your iPad Pro . Once attached, it starts to charge and automatically pairs with your device, as opposed to plugging in the iPad to connect via Bluetooth . </P> <P> The Apple Pencil has pressure sensitivity and angle detection . Encased in its plastic housing is a Bluetooth device that can communicate simultaneously with the screen and the system underneath it . The Pencil can detect force, allowing, for example, darker or lighter strokes in a drawing app depending on how hard the user presses . </P>

How many versions of the apple pencil are there
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