{

public:

MCP79412RTC(bool initI2C = true);

void begin();

static time_t get();

static void set(time_t t);

static bool read(tmElements_t &tm);

static void write(tmElements_t &tm);

void sramWrite(byte addr, byte value);

void sramWrite(byte addr, byte *values, byte nBytes);

byte sramRead(byte addr);

void sramRead(byte addr, byte *values, byte nBytes);

void eepromWrite(byte addr, byte value);

void eepromWrite(byte addr, byte *values, byte nBytes);

byte eepromRead(byte addr);

void eepromRead(byte addr, byte *values, byte nBytes);

int calibRead();

void calibWrite(int value);

void registersRead(byte *nine_bytes);

void idRead(byte *uniqueID);

void getEUI64(byte *uniqueID);

bool powerFail(time_t *powerDown, time_t *powerUp);

void squareWave(uint8_t freq);

void setAlarm(uint8_t alarmNumber, time_t alarmTime);

void enableAlarm(uint8_t alarmNumber, uint8_t alarmType);

bool alarm(uint8_t alarmNumber);

void out(bool level);

void alarmPolarity(bool polarity);

bool isRunning();

void vbaten(bool enable);

private:

static void ramWrite(byte addr, byte value);

static void ramWrite(byte addr, byte *values, byte nBytes);

static byte ramRead(byte addr);

static void ramRead(byte addr, byte *values, byte nBytes);

static byte eepromWait();

static uint8_t dec2bcd(uint8_t num);

static uint8_t bcd2dec(uint8_t num);