GamePad using Android mobile sensors and Arduino

STORY
All we need from the mobile phone is its rotation to change direction and pressing one of 2 buttons to check whether forward or backward. To get the orientation of the mobile you can use either the gyro sensor or the gravity sensor. Yet, I used the gravity since I found it more stable in the readings or you can use as well the Orientation shield in the application which is based on gyro. We will use the Keyboard Library of Arduino to take the action as if it is the real keyboard, so that's the reason we need Arduino Leonardo or any one support this library.

       Demo & Code

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