presentation_driver.py 文件源码

def start_listen():
    global serialPort
    serialPort = serial.Serial(port=args.port, baudrate=9600, timeout=.1)
    signal.signal(signal.SIGINT, close_listener)
    print('Start listen remote command. Open presentation and use remote')
    while True:
        try:
            data = serialPort.readline()[:-1]  # the last bit gets rid of the new-line chars
            if data:
                ss = data.decode("utf-8")
                if ss == "forward":
                    press('right', 'Next Slide')
                elif ss == "back":
                    press('left','Prev Slide')
        except:
            exit(-1)