https://goo.gl/75ldtM
mobile phone or tablet with Android Operating System and support Bluetooth communication, a bluetooth module (HC-05, HC-06, ...) and a microcontroller (Arduino, PIC, ARM ...)
before making the first connection it is necessary to pair your phone or tablet with the bluetooth module, this video shows how to make the pairing: https://youtu.be/pQP1mot5Cx8
when you click a button when the joystick is connected to the following messages will be sent according to the command table:https://goo.gl/CFPWPx
https://goo.gl/wBYUNz