PYTHON 控制HID-USB蜂鸣器

USB-hid 蜂鸣器

#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)