code: def serial_connect(self):
  		
  		self.serial_get()
  		try:
  			self.serial_connection.start()
  		except c1218.errors.C1218IOError as error:
  			self.logger.error('serial connection has been opened but the meter is unresponsive')
  			raise error
  		self._serial_connected = True
  		return True
docs: Connect to the serial device.