Question: Receiving media keys/ multi stearing commands and pass to CDC emulator about vwcdavr HOT 12 CLOSED

// #define DUMPMODE
// #define DUMPMODE2
//#define DISC_TRACK_NUMBER_FROM_MPD
// #define BLUETOOTH

#define RADIO_COMMAND      PB0 //ICP
#define RADIO_COMMAND_DDR  DDRB
#define RADIO_COMMAND_PORT  PORTB
#define RADIO_COMMAND_PIN PINB
//standard pinout 8,11,13
#define RADIO_CLOCK       PB5
#define RADIO_CLOCK_DDR    DDRB
#define RADIO_CLOCK_PORT  PORTB
#if defined(__AVR_ATmega328PB__) //cannot use pb3 with serial1
#define RADIO_DATA        PB2
#else
#define RADIO_DATA        PB3
#endif
#define RADIO_DATA_DDR    DDRB
#define RADIO_DATA_PORT  PORTB
//my pinout, 8,6,A0
//#define RADIO_CLOCK        PD4
//#define RADIO_CLOCK_DDR    DDRD
//#define RADIO_CLOCK_PORT  PORTD
//#define RADIO_DATA         PC3
//#define RADIO_DATA_DDR     DDRC
//#define RADIO_DATA_PORT  PORTC
//#define RADIO_ACC 3 // PD3 = INT1

int main()
{
  Serial.begin(9600);
  
  pinMode(D_CTRL_PREV_PIN, OUTPUT);
  pinMode(D_CTRL_NEXT_PIN, OUTPUT);
  pinMode(D_CTRL_LED_PIN, OUTPUT);
  digitalWrite(D_CTRL_PREV_PIN, LOW);
  digitalWrite(D_CTRL_NEXT_PIN, LOW);
  digitalWrite(D_CTRL_LED_PIN, LOW);
#ifdef BLUETOOTH
#if defined(__AVR_ATmega324__) || defined(__AVR_ATmega324A__) || defined(__AVR_ATmega324P__) || defined(__AVR_ATmega324PA__) || defined(__AVR_ATmega324PB__) || defined(__AVR_ATmega324PB__) || defined(__AVR_ATmega328PB__)
  Serial1.begin(9600);
#else
  Serial.begin(9600);
//
#endif
#endif

#ifdef DISC_TRACK_NUMBER_FROM_MPD
#if defined(__AVR_ATmega324__) || defined(__AVR_ATmega324A__) || defined(__AVR_ATmega324P__) || defined(__AVR_ATmega324PA__) || defined(__AVR_ATmega324PB__) || defined(__AVR_ATmega324PB__)
  Serial1.begin(115200);
#else
  Serial.begin(115200);
#endif
#endif
  //Serial.println("COM+SNAME+VWCDPIC1");

  unsigned long delay_time = 0;
  int next_high = 0;
  int prev_high = 0;

  Init_VWCDC();
  // starts playing Bluetooth stream
  // SetStateIdleThenPlay();
//#if defined(__AVR_ATmega328P__)
//  Serial.println("__AVR_ATmega328P__ board");
//#endif

// my board __AVR_ATmega328P__
#ifdef DISC_TRACK_NUMBER_FROM_MPD
  //start in idle mode
  SetStateIdle();
#endif
  //Serial.println("COM+TONEOFF");
  while (1)
  {
    CDC_Protocol();

    if (D_CTRL_LED_STATE == 1) {
      digitalWrite(D_CTRL_LED_PIN, HIGH);
    } else {
      digitalWrite(D_CTRL_LED_PIN, LOW);
    }

    if (D_CTRL_NEXT > 0) {
      Serial.println("D_CTRL_NEXT press");
      if (delay_time == 0) {
        delay_time = millis();
        digitalWrite(D_CTRL_NEXT_PIN, HIGH);
        next_high = 1;
      } else if (delay_time + 200 <= millis()) {
        digitalWrite(D_CTRL_NEXT_PIN, LOW);
        next_high = 0;
        delay_time = 0;
        D_CTRL_NEXT = 0;
      }
    } else if (next_high == 1) {
      digitalWrite(D_CTRL_NEXT_PIN, LOW);
      next_high = 0;
    }

    if (D_CTRL_PREV > 0) {
      Serial.println("D_CTRL_PREV press");
      int delay_plus = 150;
      if(D_CTRL_PREV == 1) delay_plus = 250;

      if (delay_time == 0) {
        delay_time = millis();
        digitalWrite(D_CTRL_PREV_PIN, HIGH);
        prev_high = 1;
      } else if (delay_time + delay_plus <= millis()) {
        digitalWrite(D_CTRL_PREV_PIN, LOW);
        prev_high = 0;
        delay_time = 0;
        if (D_CTRL_PREV == 2) {
          D_CTRL_PREV = 0;
        } else {
          D_CTRL_PREV = 2;
        }
      }
    } else if (prev_high == 1) {
      digitalWrite(D_CTRL_NEXT_PIN, LOW);
      prev_high = 0;
    }
  }
}