The EMGRobotics Robot Controller for android is a computer vision based smartphone application design to work with the EMGRobotics audio Dual Motor Controller Board (ADMCB) and the EMGRobotics Audio Dual Servo Controller Board (ADSCB).The ADMCB and the ADSCB plug into the Android phone's headphone jack.The applications generate audio tones that the boards use to control DC motors (for the ADMCB) or RC servo motors (for the ADSCB).The application uses OpenCV for Android to perceive the world through the smartphones camera Currently three computer vision modes are supported: Color Blob Tracking, Color Ball Tracking, and Face Tracking.Color Blob Tracking is used to track any object based on its color.Simply point the camera at an object and select the object on the screen.The application will immediately start tracking to object.To select another object, simply select another object on the screen.Color Ball Tracking is similar to Color Blob Tracking but only tracks round objects like balls of the selected color.Other shapes, like triangles, are ignored.Finally, face detection tracks frontal faces.