code: def set_sampling_interval(self, interval):
          
          data = [interval & 0x7f, (interval >> 7) & 0x7f]
          self._command_handler.send_sysex(self._command_handler.SAMPLING_INTERVAL, data)
docs: This method sends the desired sampling interval to Firmata.
          Note: Standard Firmata  will ignore any interval less than 10 milliseconds
  
          :param interval: Integer value for desired sampling interval in milliseconds
  
          :return: No return value.