Arduino Pro Micro MIDI Keyboard

Other Hardware Audio
1

Hello friends, I have made a midi keyboard using arduino nano with the help of Grumpy_Mike. Now I want to make it using pro micro so my PC will recognize it as USB-MIDI device, what changes I should make in the code to use USBMIDI library?`

#include <MIDI.h>
#include <Keypad.h>

const byte ROWS = 9; //six rows
const byte COLS = 6; //nine columns
 
char keys[COLS][ROWS] = {
  {48, 49, 50, 51, 52, 53, 54, 55, 56},
  {57, 58, 59, 60, 61, 62, 63, 64, 65},
  {66, 67, 68, 69, 70, 71, 72, 73, 74},
  {75, 76, 77, 78, 79, 80, 81, 82, 83},
  {84, 85, 86, 87, 88, 89, 90, 91, 92},
  {93, 94, 95, 96, 97, 98, 99, 100, 101}
  
};
 
byte rowPins[ROWS] = {A3, A2, A1, A0, 15, 14, 16, 10, 9,}; //connect to the row pinouts of the kpd
byte colPins[COLS] = {3, 4, 5, 6, 7, 8}; //connect to the column pinouts of the kpd

Keypad kpd = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );

byte pressed = 32;
byte chanel = 0; // MIDI channel to use

void setup() {
 Serial.begin(115200); // set this the same as Hairless
}


void loop() {
 // Fills kpd.key[49] array with up-to 10 active keys.
 // Returns true if there are ANY active keys.
 if (kpd.getKeys())
 {
   for (int i = 0; i < LIST_MAX; i++) // Scan the whole key list.
   {
     if ( kpd.key[i].stateChanged )   // Only find keys that have changed state.
     {
       pressed = kpd.key[i].kchar - 17;
       switch (kpd.key[i].kstate) {  // Report active key state : IDLE, PRESSED, HOLD, or RELEASED
         case PRESSED:
           sendMIDI(chanel | 0x90, pressed, 100);
           break;
          case RELEASED:
           sendMIDI(chanel | 0x80, pressed, 64);
           break;
       }
     }
   }
 }
}  // End loop

void sendMIDI(byte type, byte note, byte velocity){
  Serial.write(type);
  Serial.write(note & 0x7F);
  Serial.write(velocity);
}
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