This is a breakout module for PlayStation analog joystick.
There are 5 pins on board: VCC, GND, X, Y and Button.
Connect the module with 5V power suppy with VCC and GND, you can read out the joystick status by X,Y and button pins.
When using the 5V power supply, the default analog output for X,Y is 2.5V.
With the direction of the arrow, the voltage up to 5V, and the opposite direction down to 0V.
1 x Joystick Breakout Module for Arduino atmel Raspberry PI