Morse.h

#if !defined(_RADIOLIB_MORSE_H) && !defined(RADIOLIB_EXCLUDE_MORSE)
#define _RADIOLIB_MORSE_H

#include "../../TypeDef.h"
#include "../PhysicalLayer/PhysicalLayer.h"
#include "../AFSK/AFSK.h"

#define MORSE_DOT                                     0b0
#define MORSE_DASH                                    0b1
#define MORSE_GUARDBIT                                0b1
#define MORSE_UNSUPORTED                              0xFF

// Morse character table: - using codes defined in ITU-R M.1677-1
//                        - Morse code representation is saved LSb first, using additional bit as guard
//                        - position in array corresponds ASCII code minus MORSE_ASCII_OFFSET
//                        - ASCII characters marked MORSE_UNSUPORTED do not have ITU-R M.1677-1 equivalent
static const uint8_t MorseTable[] RADIOLIB_PROGMEM = {
    0b00,                   // space
    0b110101,               // ! (unsupported)
    0b1010010,              // "
    MORSE_UNSUPORTED,       // # (unsupported)
    MORSE_UNSUPORTED,       // $ (unsupported)
    MORSE_UNSUPORTED,       // % (unsupported)
    MORSE_UNSUPORTED,       // & (unsupported)
    0b1011110,              // '
    0b101101,               // (
    0b1101101,              // )
    MORSE_UNSUPORTED,       // * (unsupported)
    0b101010,               // +
    0b1110011,              // ,
    0b1100001,              // -
    0b1101010,              // .
    0b101001,               // /
    0b111111,               // 0
    0b111110,               // 1
    0b111100,               // 2
    0b111000,               // 3
    0b110000,               // 4
    0b100000,               // 5
    0b100001,               // 6
    0b100011,               // 7
    0b100111,               // 8
    0b101111,               // 9
    0b1000111,              // :
    MORSE_UNSUPORTED,       // ; (unsupported)
    MORSE_UNSUPORTED,       // < (unsupported)
    0b110001,               // =
    MORSE_UNSUPORTED,       // > (unsupported)
    0b1001100,              // ?
    0b1010110,              // @
    0b110,                  // A
    0b10001,                // B
    0b10101,                // C
    0b1001,                 // D
    0b10,                   // E
    0b10100,                // F
    0b1011,                 // G
    0b10000,                // H
    0b100,                  // I
    0b11110,                // J
    0b1101,                 // K
    0b10010,                // L
    0b111,                  // M
    0b101,                  // N
    0b1111,                 // O
    0b10110,                // P
    0b11011,                // Q
    0b1010,                 // R
    0b1000,                 // S
    0b11,                   // T
    0b1100,                 // U
    0b11000,                // V
    0b1110,                 // W
    0b11001,                // X
    0b11101,                // Y
    0b10011,                // Z
    MORSE_UNSUPORTED,       // [ (unsupported)
    MORSE_UNSUPORTED,       // \ (unsupported)
    MORSE_UNSUPORTED,       // ] (unsupported)
    0b1101000,              // ^ (unsupported, used as alias for end of work)
    0b110101                // _ (unsupported, used as alias for starting signal)
};

class MorseClient {
  public:
    explicit MorseClient(PhysicalLayer* phy);

    #if !defined(RADIOLIB_EXCLUDE_AFSK)

    explicit MorseClient(AFSKClient* audio);
    #endif

    // basic methods

    int16_t begin(float base, uint8_t speed = 20);

    size_t startSignal();

    size_t write(const char* str);
    size_t write(uint8_t* buff, size_t len);
    size_t write(uint8_t b);

    size_t print(__FlashStringHelper*);
    size_t print(const String &);
    size_t print(const char[]);
    size_t print(char);
    size_t print(unsigned char, int = DEC);
    size_t print(int, int = DEC);
    size_t print(unsigned int, int = DEC);
    size_t print(long, int = DEC);
    size_t print(unsigned long, int = DEC);
    size_t print(double, int = 2);

    size_t println(void);
    size_t println(__FlashStringHelper*);
    size_t println(const String &);
    size_t println(const char[]);
    size_t println(char);
    size_t println(unsigned char, int = DEC);
    size_t println(int, int = DEC);
    size_t println(unsigned int, int = DEC);
    size_t println(long, int = DEC);
    size_t println(unsigned long, int = DEC);
    size_t println(double, int = 2);

#ifndef RADIOLIB_GODMODE
  private:
#endif
    PhysicalLayer* _phy;
    #if !defined(RADIOLIB_EXCLUDE_AFSK)
    AFSKClient* _audio;
    #endif

    uint32_t _base = 0, _baseHz = 0;
    uint16_t _dotLength = 0;

    size_t printNumber(unsigned long, uint8_t);
    size_t printFloat(double, uint8_t);

    int16_t transmitDirect(uint32_t freq = 0, uint32_t freqHz = 0);
    int16_t standby();
};

#endif