/**
   * @fn DFRobot_TMF8x01
   * @brief DFRobot_TMF8x01 abstract class constructor.
   * @param enPin: The EN pin of sensor is connected to digital IO port of the MCU.
   * @param intPin: The INT pin of sensor is connected to the exteral interrupt IO port of the MCU.
   * @param pWire : Objects of the TwoWire class. 
   */
  DFRobot_TMF8x01(int enPin, int intPin, TwoWire &pWire);
  ~DFRobot_TMF8x01();

  /**
   * @fn begin
   * @brief initialization sensor's interface, addr, ram config to running APP0 application.
   * @return initialization sucess return 0, fail return -1
   */
  int begin();

  /**
   * @fn sleep
   * @brief sleep sensor by software, the sensor enter sleep mode(bootloader). Need to call wakeup function to wakeup sensor to enter APP0
   */
  void sleep();

  /**
   * @fn wakeup
   * @brief wakeup device from sleep mode, it will running app0
   * @return enter app0 return true, or return false.
   */
  bool wakeup();

  /**
   * @fn getVersion
   * @brief get device version.
   * @return return string of device version,format:
   * @n major_minor/patch_hw_serialnum
   */
  String getVersion();

  /**
   * @fn getCalibrationData
   * @brief Get 14 bytes of calibration data.
   * @param data Cache for storing calibration data
   * @param len The bytes of calibration data,its value can only be 14 bytes
   * @return Vail data return true, or return false.
   */
  bool getCalibrationData(uint8_t *data, uint8_t len = SENSOR_MTF8x01_CALIBRATION_SIZE);

  /**
   * @fn setCalibrationData
   * @brief set 14 bytes of calibration data.
   * @param data Pointer to calibration data.
   * @param len The bytes of calibration data,its value can only be 14 bytes
   * @return set sucess return true, or return false.
   */
  bool setCalibrationData(uint8_t *data, uint8_t len = SENSOR_MTF8x01_CALIBRATION_SIZE);

  /**
   * @fn stopMeasurement
   * @brief disable measurement config. Need to call startMeasurement before using this function. 
   */
  void stopMeasurement();

  /**
   * @fn isDataReady
   * @brief Waiting for data ready.
   * @return if data is valid, return true, or return false.
   */
  bool isDataReady();

  /**
   * @fn getDistance_mm
   * @brief get distance, unit mm. Before using this function, you need to call isDataReady().
   * @return return distance value, unit mm.
   */
  uint16_t getDistance_mm();

  /**
   * @fn enableIntPin
   * @brief enable INT pin. If you call this function,which will report a interrupt
   * @n signal to host by INT pin when measure data is ready.
   */
  void enableIntPin();

  /**
   * @fn disableIntPin
   * @brief disable INT pin.
   */
  void disableIntPin();

  /**
   * @fn powerOn
   * @brief power on sensor when power down sensor by EN pin.
   * @return sucess return True, or return False
   */
  bool powerOn();

  /**
   * @fn powerDown
   * @brief power down sensor by EN pin.
   * @return sucess return True, or return False
   */
  bool powerDown();

  /**
   * @fn getI2CAddress
   * @brief get I2C address.
   * @return return 7 bits I2C address
   */
  uint8_t getI2CAddress();

  /**
   * @fn pinConfig
   * @brief Config the pin of sensor.
   * @param pin: The pin of sensor, example PIN0 and PIN1,which is an enumerated variable of ePin_t.
   * @n     ePIN0:  The PIN0 of sensor config.
   * @n     ePIN1:  The PIN1 of sensor.
   * @n     eGPIOTotal:  both of PIN0 and PIN1.
   * @param config:  The config of pin, which is an enumerated variable of ePinControl_t.
   */
  void pinConfig(ePin_t pin, ePinControl_t config);

  /**
   * @fn getJunctionTemperature_C
   * @brief get junction temperature of sensor.
   * @return Junction temperature of sensor, unit, Celsius.
   */
  int8_t getJunctionTemperature_C();

  /**
   * @fn startMeasurement
   * @brief Config measurement params to enable measurement. Need to call stopMeasurement to stop ranging action.
   * @param cailbMode: Is an enumerated variable of eCalibModeConfig_t, which is to config measurement cailibration mode.
   * @n     eModeNoCalib  :          Measuring without any calibration data.
   * @n     eModeCalib    :          Measuring with calibration data.
   * @n     eModeCalibAndAlgoState : Measuring with calibration and algorithm state.
   * @return status:
   * @n      false:  enable measurement failed.
   * @n      true:  enable measurement sucess.
   */
  bool startMeasurement(eCalibModeConfig_t cailbMode = eModeCalib);

  /**
   * @fn startMeasurement
   * @brief Config measurement params to enable measurement. Need to call stopMeasurement to stop ranging action.
   * @param cailbMode: Is an enumerated variable of eCalibModeConfig_t, which is to config measurement cailibration mode.
   * @n     eModeNoCalib  :          Measuring without any calibration data.
   * @n     eModeCalib    :          Measuring with calibration data.
   * @n     eModeCalibAndAlgoState : Measuring with calibration and algorithm state.
   * @param disMode : the ranging mode of TMF8701 sensor.
   * @n     ePROXIMITY: Raing in PROXIMITY mode,ranging range 0~10cm
   * @n     eDISTANCE: Raing in distance mode,ranging range 10~60cm
   * @n     eCOMBINE:  Raing in PROXIMITY and DISTANCE hybrid mode,ranging range 0~60cm
   * @return status:
   * @n      false:  enable measurement failed.
   * @n      true:  enable measurement sucess.
   */
  bool startMeasurement(eCalibModeConfig_t cailbMode = eModeCalib, eDistaceMode_t disMode = eCOMBINE);