I'm wrong, does not happen quitting game or reloading ES after updating game list for example, but only after the boot process.

It happend even if i have unplugged the microswitch UP

// Simple arcade stick example that demonstrates how to read twelve // Arduino Pro Micro digital pins and map them to the // Arduino Joystick library. // // The digital pins 2 - 20 are grounded when they are pressed. // Pin 10, A10, Red = UP // Pin 15, D15, Yellow = RIGHT // Pin 16, D16, Orange = DOWN // Pin 14, D14, Green = LEFT // Pin 9, A9 = Button 1 // Pin 8, A8 = Button 2 // Pin 7, D7 = Button 3 // Pin 3, D3 = Button 4 // Pin 2, D2 = Button 5 // Pin 4, A6 = Button 6 // Pin 20, A2 = Select Button 1 // Pin 19, A1 = Start Button 2 // Pin 5, D5 = Other Button // Pin 6, A7 = Other Button // Pin 18, A0 = Other Button // Pin 21, A3 = Other Button // NOTE: This sketch file is for use with Arduino Pro Micro only. // // Original gamepad example by Matthew Heironimus // 2016-11-24 // Adapted for arcade machine setup by Ben Parmeter // 2019-05-20 //-------------------------------------------------------------------- #include <Joystick.h> Joystick_ Joystick(JOYSTICK_DEFAULT_REPORT_ID,JOYSTICK_TYPE_GAMEPAD, 8, 0, // Button Count, Hat Switch Count true, true, false, // X and Y, but no Z Axis false, false, false, // No Rx, Ry, or Rz false, false, // No rudder or throttle false, false, false); // No accelerator, brake, or steering void setup() { // Initialize Button Pins pinMode(4, INPUT_PULLUP); pinMode(5, INPUT_PULLUP); pinMode(6, INPUT_PULLUP); pinMode(7, INPUT_PULLUP); pinMode(8, INPUT_PULLUP); pinMode(9, INPUT_PULLUP); pinMode(10, INPUT_PULLUP); pinMode(14, INPUT_PULLUP); pinMode(15, INPUT_PULLUP); pinMode(16, INPUT_PULLUP); pinMode(18, INPUT_PULLUP); pinMode(19, INPUT_PULLUP); // Initialize Joystick Library Joystick.begin(); Joystick.setXAxisRange(-1, 1); Joystick.setYAxisRange(-1, 1); } // Last state of the buttons int lastButtonState[12] = {0,0,0,0,0,0,0,0,0,0,0,0}; //int buttonMap[16] = {10,15,16,14,9,8,7,6,5,4,20,19,2,3,18,21}; int buttonMap[12] = {10,15,16,14,9,8,7,6,5,4,18,19}; // ButtonMap = 0, Pin 10 = UP // ButtonMap = 1, Pin 15 = RIGHT // ButtonMap = 2, Pin 16 = DOWN // ButtonMap = 3, Pin 14 = LEFT // ButtonMap = 4, Pin 9 = Button 1 // ButtonMap = 5, Pin 8 = Button 2 // ButtonMap = 6, Pin 7 = Button 3 // ButtonMap = 7, Pin 6 = Button 4 // ButtonMap = 8, Pin 5 = Button 5 // ButtonMap = 9, Pin 4 = Button 6 // ButtonMap = 10, Pin 18 = Select Button 1 // ButtonMap = 11, Pin 19 = Start Button 2 void loop() { // Read pin values for (int index = 0; index < 12; index++) { int currentButtonState = !digitalRead(buttonMap[index]); if (currentButtonState != lastButtonState[index]) { switch (index) { case 0: // UP if (currentButtonState == 1) { Joystick.setYAxis(-1); } else { Joystick.setYAxis(0); } break; case 1: // RIGHT if (currentButtonState == 1) { Joystick.setXAxis(1); } else { Joystick.setXAxis(0); } break; case 2: // DOWN if (currentButtonState == 1) { Joystick.setYAxis(1); } else { Joystick.setYAxis(0); } break; case 3: // LEFT if (currentButtonState == 1) { Joystick.setXAxis(-1); } else { Joystick.setXAxis(0); } break; case 4: // Black Button 1 Joystick.setButton(0, currentButtonState); break; case 5: // Black Button 2 Joystick.setButton(1, currentButtonState); break; case 6: // Black Button 3 Joystick.setButton(2, currentButtonState); break; case 7: // Black Button 4 Joystick.setButton(3, currentButtonState); break; case 8: // Black Button 5 Joystick.setButton(4, currentButtonState); break; case 9: // Black Button 6 Joystick.setButton(5, currentButtonState); break; case 10: // Select Button Joystick.setButton(6, currentButtonState); break; case 11: // Start Button Joystick.setButton(7, currentButtonState); break; } lastButtonState[index] = currentButtonState; } } delay(10); }