SMAKN Fr4 Ky-023 Joystick Breakout Module Sensor Shield for Arduino Uno/arduino UNO R3/arduino 2560/arduino 2560 R Suitable for Arduino UNO, Arduino UNO R3, Arduino 2560, Arduino 2560 R Cross rocker is a bidirectional 10K resistor, with rocker in different directions, the resistance changes with tap; Material:FR4 This module uses 5V power supply, original state of X, Y readout voltage is about 2.5V, when press down the arrow, the voltage value increases up to 5V; press the arrow in the opposite direction, voltage decreases, the minimum is 0V