File content as of revision 0:2326b6172834:

#include "SP03.h"

SP03::SP03(PinName sda, PinName scl): i2c_bus(sda,scl)
{
    i2c_bus.frequency(CLOCK_RATE);
}

void SP03::_speak(const char message[],SmartLab_SP03::Speech_Speed speed, SmartLab_SP03::Speech_Volume volume,uint8_t pitch)
{
    char speakout[2];
    speakout[0] = REGISTER_FOR_COMMAND;
    speakout[1] = SPEAK_OUT_THE_BUFFER;
    int length = 6 + strlen(message);
    char _message[length];
    _message[0] = REGISTER_FOR_COMMAND;
    _message[1] = 0x00;
    _message[2] = volume;
    _message[3] = speed;
    _message[4] = pitch;
    for (int i = 5; i < length; i++)
        _message[i] = message[i - 5];
    i2c_bus.write(DEFAULT_ADDRESS, _message, length);
    i2c_bus.write(DEFAULT_ADDRESS, speakout, 2);
}

void SP03::Speak(const char message[])
{
    _speak(message, SmartLab_SP03::NORMAL, SmartLab_SP03::MAX, DEFAULT_SPEECH_PITCH);
}

void SP03::Speak(const char message[],SmartLab_SP03::Speech_Speed speed, SmartLab_SP03::Speech_Volume volume)
{
    _speak(message, speed, volume, DEFAULT_SPEECH_PITCH);
}

void SP03::Speak(const char message[],SmartLab_SP03::Speech_Speed speed, SmartLab_SP03::Speech_Volume volume,uint8_t pitch)
{
    _speak(message, speed, volume, pitch);
}

bool SP03::IsSpeaking()
{
    char m[1]= {REGISTER_FOR_COMMAND};
    i2c_bus.write(DEFAULT_ADDRESS,m ,1);
    i2c_bus.read(DEFAULT_ADDRESS, m, 1);
    if (m[0] == 0x00)
        return false;
    else return true;
}