PYTHON 控制HID-USB蜂鸣器

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    USB-hid 蜂鸣器

    https://item.taobao.com/item.htm?spm=a1z10.3-c-s.w4002-22451767025.9.64041349oIFB55&id=605695967804



    #pip install pyusb   win32-libusb device filter



    import usb.core

    import usb.util




    all_devs = usb.core.find(find_all=True)

    for d in all_devs:

            print(d)

            

            

    # find our device

    dev =  usb.core.find(idVendor= 0x5131, idProduct= 0x2019)


    # was it found?

    if dev is None:

        raise ValueError('Device not found')


    # set the active configuration. With no arguments, the first

    # configuration will be the active one

    dev.set_configuration()


    # get an endpoint instance

    cfg = dev.get_active_configuration()

    intf = cfg[(1,0)]


    ep = usb.util.find_descriptor(

        intf,

        # match the first OUT endpoint

        custom_match = \

        lambda e: \

            usb.util.endpoint_direction(e.bEndpointAddress) == \

            usb.util.ENDPOINT_OUT)


    assert ep is not None


    # write the data

    beepcmd=[0,0,0,0xa0,1]   # 1*100ms

    ep.write(beepcmd)


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