Hello everybody, Write On Air is an application that allows you to simulate the drawing on air. This is to virtually draw on screen through the camera. What you need - A device with camera, running on android. - A homemade pen with a distinguished red tip. - Being in a well lighted place. How to use it - The first icon from the left allows you to make the pen activated. - The second icon allows you to clear the screen. - Move your homemade pen in front of the camera to write/draw on air. The current version don't consider the depth. Demonstration in video Download Write On Air | SlideME Enjoy!