The Magic Pen consists of an iOS app and a pen with an internal magnet. Using the iPhone's internal magnetometer, which is normally used to find magnetic north, this app can track our magnet's position. By tracking the position of the magnet and calibrating with the four corners of a surface, the user can draw on the surface and the same lines will be drawn on the app's canvas. Then, they have access to their drawing as an image file. The app makes it very convenient for users who want to easily create digital drawings or a backup copy of written notes.

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