The 9-Pin Dual-Axis PS2 Joystick Breakout Board is a popular analog joystick module commonly used in Arduino and microcontroller projects. It's based on the PlayStation 2 (PS2) controller joystick design.
Speicification
Operating voltage: 3.3V to 5V DC
Output: Analog voltage (0V to VCC) on X and Y axes
Default position: Center (outputs approximately VCC/2, around 2.5V at 5V supply)
Resistance range: Typically 10kΩ potentiometers
Switch type: Momentary push button (active LOW when pressed)
Dimensions: Approximately 40mm × 30mm (varies by manufacturer)
GND - Ground connection
+5V (or VCC) - Power supply (typically 3.3V to 5V)
VRx - X-axis analog output (horizontal movement)
VRy - Y-axis analog output (vertical movement)
SW - Switch/button output (digital, pressed when joystick is pushed down)