Thanks everyone, I found a way to hide all the default emulators, just to switch off an option on the main menu.

I found the issue, need to add "usbhid.quirks=0x2341:0x8037:0x040" into the cmdline.txt file for an Arduino Micro

see wiki : https://github.com/MHeironimus/ArduinoJoystickLibrary/wiki/FAQ

Hello everyone,

I use the library ArduinoJoystickLibrary to create 4 gamepads.
In Windows, I see one controller with the four distincts gamepad, but in Recalbox, only the first is working, anyone have an idea about how I can have the 3 others working ?

thanks in advance

https://github.com/MHeironimus/ArduinoJoystickLibrary

The Arduino code

#include <Wire.h>
#include <Joystick.h>

#define JOYSTICK_COUNT 4

Joystick_ Joystick[JOYSTICK_COUNT] = {
  Joystick_(0x03, JOYSTICK_TYPE_GAMEPAD, 14, 0, true, true, false, false, false, false, false, false, false, false, false),
  Joystick_(0x04, JOYSTICK_TYPE_GAMEPAD, 14, 0, true, true, false, false, false, false, false, false, false, false, false),
  Joystick_(0x05, JOYSTICK_TYPE_GAMEPAD, 14, 0, true, true, false, false, false, false, false, false, false, false, false),
  Joystick_(0x06, JOYSTICK_TYPE_GAMEPAD, 14, 0, true, true, false, false, false, false, false, false, false, false, false)
};

// 8 bytes of data that we get from the controller
struct {
    // bits: 0, 0, 0, start, y, x, b, a
    unsigned char data1;
    // bits: 1, L, R, Z, Dup, Ddown, Dright, Dleft
    unsigned char data2;
    char stick_x;
    char stick_y;
} N64_status_1;

struct {
    // bits: 0, 0, 0, start, y, x, b, a
    unsigned char data1;
    // bits: 1, L, R, Z, Dup, Ddown, Dright, Dleft
    unsigned char data2;
    char stick_x;
    char stick_y;
} N64_status_2;

struct {
    // bits: 0, 0, 0, start, y, x, b, a
    unsigned char data1;
    // bits: 1, L, R, Z, Dup, Ddown, Dright, Dleft
    unsigned char data2;
    char stick_x;
    char stick_y;
} N64_status_3;

struct {
    // bits: 0, 0, 0, start, y, x, b, a
    unsigned char data1;
    // bits: 1, L, R, Z, Dup, Ddown, Dright, Dleft
    unsigned char data2;
    char stick_x;
    char stick_y;
} N64_status_4;

void setup() {

  Wire.begin();
  Serial.begin(115200);

  for (int index = 0; index < JOYSTICK_COUNT; index++)
  {
    Joystick[index].setXAxisRange(-80, 80);
    Joystick[index].setYAxisRange(-80, 80);
    Joystick[index].begin();
  }
  
}

void loop() {

  Wire.requestFrom(8, 4);    // request 4 bytes from peripheral device #8
  
  while (Wire.available()) { // peripheral may send less than requested

  N64_status_1.data1 = Wire.read(); // receive a byte as character
  N64_status_1.data2 = Wire.read();
  N64_status_1.stick_x = Wire.read();
  N64_status_1.stick_y = Wire.read();
  }
 
  Joystick[0].setXAxis(N64_status_1.stick_x);
  Joystick[0].setYAxis(N64_status_1.stick_y);
  
  Joystick[0].setButton(0, N64_status_1.data1 & 128 ? 1:0);//A
  Joystick[0].setButton(1, N64_status_1.data1 & 64 ? 1:0);//B
  Joystick[0].setButton(2, N64_status_1.data1 & 32 ? 1:0);//Z
  Joystick[0].setButton(3, N64_status_1.data1 & 16 ? 1:0);//start
  Joystick[0].setButton(4, N64_status_1.data1 & 0x08 ? 1:0);//Dup
  Joystick[0].setButton(5, N64_status_1.data1 & 0x04 ? 1:0);//Ddown
  Joystick[0].setButton(6, N64_status_1.data1 & 0x02 ? 1:0);//Dleft
  Joystick[0].setButton(7, N64_status_1.data1 & 0x01 ? 1:0);//Dright
  Joystick[0].setButton(8, N64_status_1.data2 & 32 ? 1:0);//L
  Joystick[0].setButton(9, N64_status_1.data2 & 16 ? 1:0);//R
  Joystick[0].setButton(10, N64_status_1.data2 & 0x08 ? 1:0);//Cup
  Joystick[0].setButton(11, N64_status_1.data2 & 0x04 ? 1:0);//Cdown
  Joystick[0].setButton(12, N64_status_1.data2 & 0x02 ? 1:0);//Cleft
  Joystick[0].setButton(13, N64_status_1.data2 & 0x01 ? 1:0);//Cright
  
  Joystick[0].sendState();

  Wire.requestFrom(16, 4);    // request 4 bytes from peripheral device #16
  
  while (Wire.available()) { // peripheral may send less than requested

  N64_status_2.data1 = Wire.read(); // receive a byte as character
  N64_status_2.data2 = Wire.read();
  N64_status_2.stick_x = Wire.read();
  N64_status_2.stick_y = Wire.read();
  }
 
  Joystick[1].setXAxis(N64_status_2.stick_x);
  Joystick[1].setYAxis(N64_status_2.stick_y);
  
  Joystick[1].setButton(0, N64_status_2.data1 & 128 ? 1:0);//A
  Joystick[1].setButton(1, N64_status_2.data1 & 64 ? 1:0);//B
  Joystick[1].setButton(2, N64_status_2.data1 & 32 ? 1:0);//Z
  Joystick[1].setButton(3, N64_status_2.data1 & 16 ? 1:0);//start
  Joystick[1].setButton(4, N64_status_2.data1 & 0x08 ? 1:0);//Dup
  Joystick[1].setButton(5, N64_status_2.data1 & 0x04 ? 1:0);//Ddown
  Joystick[1].setButton(6, N64_status_2.data1 & 0x02 ? 1:0);//Dleft
  Joystick[1].setButton(7, N64_status_2.data1 & 0x01 ? 1:0);//Dright
  Joystick[1].setButton(8, N64_status_2.data2 & 32 ? 1:0);//L
  Joystick[1].setButton(9, N64_status_2.data2 & 16 ? 1:0);//R
  Joystick[1].setButton(10, N64_status_2.data2 & 0x08 ? 1:0);//Cup
  Joystick[1].setButton(11, N64_status_2.data2 & 0x04 ? 1:0);//Cdown
  Joystick[1].setButton(12, N64_status_2.data2 & 0x02 ? 1:0);//Cleft
  Joystick[1].setButton(13, N64_status_2.data2 & 0x01 ? 1:0);//Cright
 
  Joystick[1].sendState();

  Wire.requestFrom(32, 4);    // request 4 bytes from peripheral device #32
  
  while (Wire.available()) { // peripheral may send less than requested

  N64_status_3.data1 = Wire.read(); // receive a byte as character
  N64_status_3.data2 = Wire.read();
  N64_status_3.stick_x = Wire.read();
  N64_status_3.stick_y = Wire.read();
  }

  Joystick[2].setXAxis(N64_status_3.stick_x);
  Joystick[2].setYAxis(N64_status_3.stick_y);
  
  Joystick[2].setButton(0, N64_status_3.data1 & 128 ? 1:0);//A
  Joystick[2].setButton(1, N64_status_3.data1 & 64 ? 1:0);//B
  Joystick[2].setButton(2, N64_status_3.data1 & 32 ? 1:0);//Z
  Joystick[2].setButton(3, N64_status_3.data1 & 16 ? 1:0);//start
  Joystick[2].setButton(4, N64_status_3.data1 & 0x08 ? 1:0);//Dup
  Joystick[2].setButton(5, N64_status_3.data1 & 0x04 ? 1:0);//Ddown
  Joystick[2].setButton(6, N64_status_3.data1 & 0x02 ? 1:0);//Dleft
  Joystick[2].setButton(7, N64_status_3.data1 & 0x01 ? 1:0);//Dright
  Joystick[2].setButton(8, N64_status_3.data2 & 32 ? 1:0);//L
  Joystick[2].setButton(9, N64_status_3.data2 & 16 ? 1:0);//R
  Joystick[2].setButton(10, N64_status_3.data2 & 0x08 ? 1:0);//Cup
  Joystick[2].setButton(11, N64_status_3.data2 & 0x04 ? 1:0);//Cdown
  Joystick[2].setButton(12, N64_status_3.data2 & 0x02 ? 1:0);//Cleft
  Joystick[2].setButton(13, N64_status_3.data2 & 0x01 ? 1:0);//Cright
 
  Joystick[2].sendState();

  Wire.requestFrom(64, 4);    // request 4 bytes from peripheral device #64
  
  while (Wire.available()) { // peripheral may send less than requested

  N64_status_4.data1 = Wire.read(); // receive a byte as character
  N64_status_4.data2 = Wire.read();
  N64_status_4.stick_x = Wire.read();
  N64_status_4.stick_y = Wire.read();
  }

  Joystick[3].setXAxis(N64_status_4.stick_x);
  Joystick[3].setYAxis(N64_status_4.stick_y);
  
  Joystick[3].setButton(0, N64_status_4.data1 & 128 ? 1:0);//A
  Joystick[3].setButton(1, N64_status_4.data1 & 64 ? 1:0);//B
  Joystick[3].setButton(2, N64_status_4.data1 & 32 ? 1:0);//Z
  Joystick[3].setButton(3, N64_status_4.data1 & 16 ? 1:0);//start
  Joystick[3].setButton(4, N64_status_4.data1 & 0x08 ? 1:0);//Dup
  Joystick[3].setButton(5, N64_status_4.data1 & 0x04 ? 1:0);//Ddown
  Joystick[3].setButton(6, N64_status_4.data1 & 0x02 ? 1:0);//Dleft
  Joystick[3].setButton(7, N64_status_4.data1 & 0x01 ? 1:0);//Dright
  Joystick[3].setButton(8, N64_status_4.data2 & 32 ? 1:0);//L
  Joystick[3].setButton(9, N64_status_4.data2 & 16 ? 1:0);//R
  Joystick[3].setButton(10, N64_status_4.data2 & 0x08 ? 1:0);//Cup
  Joystick[3].setButton(11, N64_status_4.data2 & 0x04 ? 1:0);//Cdown
  Joystick[3].setButton(12, N64_status_4.data2 & 0x02 ? 1:0);//Cleft
  Joystick[3].setButton(13, N64_status_4.data2 & 0x01 ? 1:0);//Cright
 
  Joystick[3].sendState();

  delay(50);

}

This is how it appear in windows :
One controller

with 4 gamepads

I can receive the input of each gamepad

but in Recalbox only one appear "LLC ARDUINO MICRO"

If someone have an idea.... thanks in advance

Thanks everyone, I found a way to hide all the default emulators, just to switch off an option on the main menu.

Hi everyone !

I need your help to find a way for hiding or deleting emulators from the main menu.

I would like to have only the N64 emulator available.

I found something in the Wiki but I don't know how to access the folder Share_Init

I'm with the rev 8.1.1

Thank's in advance