Send a single value to the uDMX
        :param channel: DMX channel number, 1-512
        :param value: Value to be sent to channel, 0-255
        :return: number of bytes actually sent

def send_single_value(self, channel: int, value: int) -> int:
        """
        Send a single value to the uDMX
        :param channel: DMX channel number, 1-512
        :param value: Value to be sent to channel, 0-255
        :return: number of bytes actually sent
        """
        SetSingleChannel = 1
        n = self._send_control_message(SetSingleChannel, value_or_length=value, channel=channel, data_or_length=1)
        return n