This android app makes you control your EV3 or NXT controller.
No need to Program, just open the Bluetooth of controller and connect.

*GAMEPAD MODE (can pick from normal button or joystick):
-4 Normal arrow button
-Analog joytick button
-Adjust Speed
-IP Camera Viewer
-Buttons can be Hold and release.

4 Motor Port can be use.
PORT A and B are use for Arrow, Joystick control
PORT C and D are use for circle, square, eks, triangle.