code: def opened(self, *args):
          
          self._serial_open = True
  
          self.log("Opened: ", args, lvl=debug)
          self._send_command(b'l,1')  # Saying hello, shortly
          self.log("Turning off engine, pump and neutralizing rudder")
          self._send_command(b'v')
          self._handle_servo(self._machine_channel, 0)
          self._handle_servo(self._rudder_channel, 127)
          self._set_digital_pin(self._pump_channel, 0)
          # self._send_command(b'h')
          self._send_command(b'l,0')
          self._send_command(b'm,HFOS Control')
docs: Initiates communication with the remote controlled device.
  
          :param args: