def connect_to_robot():
    '''
    Connect over Serial to the Smoothieware motor driver
    '''
    print()
    import optparse
    from opentrons import robot
    print('Connecting to robot...')
    parser = optparse.OptionParser(usage='usage: %prog [options] ')
    parser.add_option(
        "-p", "--p", dest="port", default='',
        type='str', help='serial port of the smoothie'
    )

    options, _ = parser.parse_args(args=None, values=None)
    if options.port:
        robot.connect(options.port)
    else:
        robot.connect()
    return robot
Connect over Serial to the Smoothieware motor driver