Jestem nowy w temacie i nie wiem jak temu zaradzić

I've compiled your code in post #3 for a ProMicro without problems; there are a couple of warnings.

Did you install the (correct) Joystick library?

Regarding the '18'

C:\Users\sterretje\AppData\Local\Temp\arduino_modified_sketch_86101\sketch_sep21a.ino:15:0: warning: "LIST_MAX" redefined

 #define LIST_MAX 18

 

In file included from C:\Users\sterretje\AppData\Local\Temp\arduino_modified_sketch_86101\sketch_sep21a.ino:7:0:

C:\Users\sterretje\Documents\Arduino\libraries\Keypad\src/Keypad.h:69:0: note: this is the location of the previous definition

 #define LIST_MAX 10  // Max number of keys on the active list.

This warning means that LIST_MAX is used in the Keypad library and you can't use it in your program for something else. In your sketch, replace all occurences of LIST_MAX by something else, e.g. MAX_BUTTONS.

#define MAX_BUTTONS 18

[edit]
Note that there are other warnings that you can't ignore; I don't have the time to study that.

C:\Users\sterretje\AppData\Local\Temp\arduino_modified_sketch_805101\sketch_sep21a.ino: In function 'CheckAllButtons()':

C:\Users\sterretje\AppData\Local\Temp\arduino_modified_sketch_805101\sketch_sep21a.ino:116:26: warning: iteration 10 invokes undefined behavior [-Waggressive-loop-optimizations]

       if ( buttbx.key[i].stateChanged )

            ~~~~~~~~~~~~~~^~~~~~~~~~~~

C:\Users\sterretje\AppData\Local\Temp\arduino_modified_sketch_805101\sketch_sep21a.ino:114:23: note: within this loop

     for (int i = 0; i < MAX_BUTTONS; i++)

C:\Users\sterretje\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.3\cores\arduino\main.cpp: In function 'main':

C:\Users\sterretje\AppData\Local\Temp\arduino_modified_sketch_805101\sketch_sep21a.ino:116:26: warning: iteration 10 invokes undefined behavior [-Waggressive-loop-optimizations]

       if ( buttbx.key[i].stateChanged )

                          ^

C:\Users\sterretje\AppData\Local\Temp\arduino_modified_sketch_805101\sketch_sep21a.ino:114:23: note: within this loop

     for (int i = 0; i < MAX_BUTTONS; i++)

                       ^

Sketch uses 9004 bytes (31%) of program storage space. Maximum is 28672 bytes.

Global variables use 473 bytes (18%) of dynamic memory, leaving 2087 bytes for local variables. Maximum is 2560 bytes.

[/edit]

Can you please post your code using code tags. The easiest is:

  1. In the IDE, use tools -> autoformat; this will properly indent your code.
  2. In the IDE, use edit -> copy for forum; this will place your code (including the code tags) on the clipboard.
  3. Paste the content of the clipboard in a reply here.

This is your code, properly formatted and with the above fix.

//BUTTON BOX
//USE w ProMicro
//Tested in WIN10 + Assetto Corsa
//AMSTUDIO
//20.8.17

#include <Keypad.h>
#include <Joystick.h>

#define ENABLE_PULLUPS
#define NUMROTARIES 3
#define NUMBUTTONS 18
#define NUMROWS 3
#define NUMCOLS 6
#define MAX_BUTTONS 18

byte buttons[NUMROWS][NUMCOLS] = {
  {1, 2, 3, 4, 5, 6},
  {7, 8, 9, 10, 11, 12},
  {13, 14, 15, 16, 17, 18},

};

struct rotariesdef {
  byte pin1;
  byte pin2;
  int ccwchar;
  int cwchar;
  volatile unsigned char state;
};

rotariesdef rotaries[NUMROTARIES] {
  {0, 1, 19, 20, 0},
  {2, 3, 21, 22, 0},
  {4, 5, 23, 24, 0},
};

#define DIR_CCW 0x10
#define DIR_CW 0x20
#define R_START 0x0

#ifdef HALF_STEP
#define R_CCW_BEGIN 0x1
#define R_CW_BEGIN 0x2
#define R_START_M 0x3
#define R_CW_BEGIN_M 0x4
#define R_CCW_BEGIN_M 0x5
const unsigned char ttable[6][4] = {
  // R_START (00)
  {R_START_M, R_CW_BEGIN, R_CCW_BEGIN, R_START},
  // R_CCW_BEGIN
  {R_START_M | DIR_CCW, R_START, R_CCW_BEGIN, R_START},
  // R_CW_BEGIN
  {R_START_M | DIR_CW, R_CW_BEGIN, R_START, R_START},
  // R_START_M (11)
  {R_START_M, R_CCW_BEGIN_M, R_CW_BEGIN_M, R_START},
  // R_CW_BEGIN_M
  {R_START_M, R_START_M, R_CW_BEGIN_M, R_START | DIR_CW},
  // R_CCW_BEGIN_M
  {R_START_M, R_CCW_BEGIN_M, R_START_M, R_START | DIR_CCW},
};
#else
#define R_CW_FINAL 0x1
#define R_CW_BEGIN 0x2
#define R_CW_NEXT 0x3
#define R_CCW_BEGIN 0x4
#define R_CCW_FINAL 0x5
#define R_CCW_NEXT 0x6

const unsigned char ttable[7][4] = {
  // R_START
  {R_START, R_CW_BEGIN, R_CCW_BEGIN, R_START},
  // R_CW_FINAL
  {R_CW_NEXT, R_START, R_CW_FINAL, R_START | DIR_CW},
  // R_CW_BEGIN
  {R_CW_NEXT, R_CW_BEGIN, R_START, R_START},
  // R_CW_NEXT
  {R_CW_NEXT, R_CW_BEGIN, R_CW_FINAL, R_START},
  // R_CCW_BEGIN
  {R_CCW_NEXT, R_START, R_CCW_BEGIN, R_START},
  // R_CCW_FINAL
  {R_CCW_NEXT, R_CCW_FINAL, R_START, R_START | DIR_CCW},
  // R_CCW_NEXT
  {R_CCW_NEXT, R_CCW_FINAL, R_CCW_BEGIN, R_START},
};
#endif

byte rowPins[NUMROWS] = {21, 20, 19};
byte colPins[NUMCOLS] = {14, 16, 10, 9, 8, 7};

Keypad buttbx = Keypad( makeKeymap(buttons), rowPins, colPins, NUMROWS, NUMCOLS);

Joystick_ Joystick(JOYSTICK_DEFAULT_REPORT_ID,
                   JOYSTICK_TYPE_JOYSTICK, 25, 0,
                   false, false, false, false, false, false,
                   false, false, false, false, false);

void setup() {
  Joystick.begin();
  rotary_init();
}

void loop() {

  CheckAllEncoders();

  CheckAllButtons();

}

void CheckAllButtons(void) {
  if (buttbx.getKeys())
  {
    for (int i = 0; i < MAX_BUTTONS; i++)
    {
      if ( buttbx.key[i].stateChanged )
      {
        switch (buttbx.key[i].kstate) {
          case PRESSED:
          case HOLD:
            Joystick.setButton(buttbx.key[i].kchar, 1);
            break;
          case RELEASED:
          case IDLE:
            Joystick.setButton(buttbx.key[i].kchar, 0);
            break;
        }
      }
    }
  }
}

void rotary_init() {
  for (int i = 0; i < NUMROTARIES; i++) {
    pinMode(rotaries[i].pin1, INPUT);
    pinMode(rotaries[i].pin2, INPUT);
#ifdef ENABLE_PULLUPS
    digitalWrite(rotaries[i].pin1, HIGH);
    digitalWrite(rotaries[i].pin2, HIGH);
#endif
  }
}

unsigned char rotary_process(int _i) {
  unsigned char pinstate = (digitalRead(rotaries[_i].pin2) << 1) | digitalRead(rotaries[_i].pin1);
  rotaries[_i].state = ttable[rotaries[_i].state & 0xf][pinstate];
  return (rotaries[_i].state & 0x30);
}

void CheckAllEncoders(void) {
  for (int i = 0; i < NUMROTARIES; i++) {
    unsigned char result = rotary_process(i);
    if (result == DIR_CCW) {
      Joystick.setButton(rotaries[i].ccwchar, 1); delay(50); Joystick.setButton(rotaries[i].ccwchar, 0);
    };
    if (result == DIR_CW) {
      Joystick.setButton(rotaries[i].cwchar, 1); delay(50); Joystick.setButton(rotaries[i].cwchar, 0);
    };
  }
}