def send_arduino_simple(msg, serial_connection):
    """
    Send the *msg* over the *serial_connection*

    Same as :code:`send_arduino`, but doesn't add anything to the message
    before sending it.

    Parameters
    ----------
    msg : str or bytes
        the message you want to send
    serial_connection : object
        the :code:`serial.Serial` object you want to use for sending
    """
    if not isinstance(msg, bytes):
        msg = str(msg).encode()
    serial_connection.write(msg)
