sudo git clone https://github.com/DFRobot/DFRobot_IICSerial

python demo_read_serial.py 
或 
python2 demo_read_serial.py 
或 
python3 demo_read_serial.py

  '''!
    @brief Constructor
    @param sub_uart_channel sub UART channel, WK2132 has two sub UARTs: SUBUART_CHANNEL_1 or SUBUART_CHANNEL_2
    @Parame IA1:  corresponds with IA1 Level(0 or 1) of DIP switch on the module, and is used for configuring 
    @n the IIC address of the 6th bit value(default: 1).
    @Parame IA0:  corresponds with IA0 Level(0 or 1) of DIP switch on the module, and is used for configuring
    @n IIC address of the 5th bit value(default: 1).
    @n IIC address configuration: 
    7   6   5   4   3   2   1   0
    0  IA1 IA0  1   0  C1  C0  0/1
    @n @n IIC address only has 7 bits, while there are 8 bits for one byte, so the extra one bit will be filled as 0. 
    @n The 6th bit corresponds with IA1 Level of DIP switch, can be configured manually.
    @n The 5th bit corresponds with IA0 Level of DIP switch, can be configured manually. 
    @n The 4th and 3rd bits are fixed, value 1 and 0 respectively.
    @n The values of the 2nd and 1st bits are the sub UART channels, 00 for sub UART 1, 01 for sub UART 2. 
    @n The 0 bit represents the operation object: 0 for register, 1 for FIFO cache.
  '''
  def __init__(self, sub_uart_channel, IA1 = 1, IA0 =1):
  
  '''!
    @brief Init function, set sub UART band rate, data format 
    @param baud: baud rate, it support: 9600, 57600, 115200, 2400, 4800, 7200,
    @n     14400, 19200, 28800,38400, 76800, 153600, 230400, 460800, 307200, 921600
    @param format: Data format, it support:
    @n     IIC_SERIAL_8N1, IIC_SERIAL_8N2, IIC_SERIAL_8Z1,IIC_SERIAL_8Z2
    @n     IIC_SERIAL_8O1, IIC_SERIAL_8O2, IIC_SERIAL_8E1, IIC_SERIAL_8E2
    @n     IIC_SERIAL_8F1, IIC_SERIAL_8F2
    @return Return 0 if it sucess, otherwise return non-zero
  '''
  def begin(self, baud, format = self.IIC_Serial_8N1):
  
  '''!
    @brief Release sub UART to clean up all registers in Sub UART. Call function begin() again to make it work.
  '''
  def end(self):
  
  '''!
    @The Prints the values to a stream, usage is the same as print function.
    @param sep: string inserted between values, default a space.
    @param end: string appended after the last value, default a newline.
  '''
  def printf(self, *args, **kargs):
  
  '''!
    @brief Get the number of bytes in receive buffer, it should be the total number of bytes in FIFO
    @n receive buffer(256B) and self-defined _rx_buffer(31B).
    @return Return the number of bytes in receive buffer
  '''
  def available(self):
  
  '''!
    @brief Return the data of 1 byte without deleting the data in the receive buffer
    @return Return the readings
  '''
  def peek(self):
  
  '''!
    @brief RRead size bytes from the serial port, this operation will delete the data in the buffer.
    @param size: the bytes of read
    @return less characters as requested.
  '''
  def read(self, size = 1):
  
  '''!
    @brief Wait for the data to be transmited completely
  '''
  def flush(self):
  
  '''!
    @brief Output the given byte string over the serial port.
    @param value: byte string
    @return return bytes actually written.
  '''
  def write(self, value):