New JoyStick Breakout Module Shield PS2 Joystick Game Controller For Arduino Interface is VCC ˇ˘X ˇ˘ Y ˇ˘ KEY ˇ˘GND Board size: 33.5 * 41.5 mm Cross rocker is a two-way 10 k resistor, with the handle in a different direction, the resistance will change. This module uses 5 V power supply, the voltage of X, Y is 2.5 V in initial conditions, when press the arrow direction, read with voltage increasing, the biggest to 5 V. Opposite direction of the arrow pressed, read the voltage value decreased, a minimum of 0 V. Packing List: