comes example code
direct plug puzzle board, NO soldering needed.
Five momentary push buttons (4+ joystick select button, just like the playstation 3 analog stick push button)
two-axis thumb joystick
specification: The push buttons are connected to digital pins 2-6; the related pin will be low when a certain button is pressed. Joystick
Y-Axis movement will produce a proportional analog voltage on analog pin 0, while, Joystick X-Axis movement will produce a analog signal on analog pin 1.
Add nRF24L01 RF interface
With Nokia 5110 LCD interface, so very easy to game development.
Adding a Bluetooth module interface, convenient Bluetooth wireless serial communication.
Add I2C communication interface, easy connectivity to I2C devices
Meanwhile, JoyStick Shield with a cross PS2 joystick with buttons, there are four round buttons, 2 small buttons. Provides joystick and buttons input expansion. Onboard switches can switch between 3.3V and 5V, can use this model for other 3.3V microcontroller platforms, such as STM32.

Smart Electronics Integrated Circuit Joystick Shield V1.2 for arduino Diy Kit