python实现蓝牙通信
发布时间:2020-12-20 10:21:23 所属栏目:Python 来源:网络整理
导读:? 安装和示例 linux下安装 sudo apt - get install python-pip libglib2. 0 - devsudo pip install bluepy ? 官方示例 import btle class MyDelegate(btle.DefaultDelegate): def __init__ (self,params): btle.DefaultDelegate. __init__ (self) # ... init
? 安装和示例linux下安装 sudo apt-get install python-pip libglib2.0-dev sudo pip install bluepy ? 官方示例 import btle class MyDelegate(btle.DefaultDelegate): def __init__(self,params): btle.DefaultDelegate.__init__(self) # ... initialise here def handleNotification(self,cHandle,data): # ... perhaps check cHandle # ... process ‘data‘ # Initialisation ------- p = btle.Peripheral( address ) p.setDelegate( MyDelegate(params) ) # Setup to turn notifications on,e.g. # svc = p.getServiceByUUID( service_uuid ) # ch = svc.getCharacteristics( char_uuid )[0] # ch.write( setup_data ) # Main loop -------- while True: if p.waitForNotifications(1.0): # handleNotification() was called continue print "Waiting..." # Perhaps do something else here ? 蓝牙通信模块pybluez的使用选择蓝牙通信对象import bluetooth target_name = "My Device" target_address = None nearby_devices = bluetooth.discover_devices() for bdaddr in nearby_devices: if target_name == bluetooth.lookup_name( bdaddr ): target_address = bdaddr break if target_address is not None: print("found target bluetooth device with address ",target_address) else: print("could not find target bluetooth device nearby") 查询设备服务?import bluetooth nearby_devices = bluetooth.discover_devices(lookup_names=True) for addr,name in nearby_devices: print(" %s - %s" % (addr,name)) services = bluetooth.find_service(address=addr) for svc in services: print("Service Name: %s" % svc["name"]) print(" Host: %s" % svc["host"]) print(" Description: %s" % svc["description"]) print(" Provided By: %s" % svc["provider"]) print(" Protocol: %s" % svc["protocol"]) print(" channel/PSM: %s" % svc["port"]) print(" svc classes: %s "% svc["service-classes"]) print(" profiles: %s "% svc["profiles"]) print(" service id: %s "% svc["service-id"]) print("") 通过RFCOMM方式进行通信采用类似于socket编程模型的方式进行蓝牙通信的编程 1.服务器端程序 import bluetooth server_sock=bluetooth.BluetoothSocket( bluetooth.RFCOMM ) port = 1 server_sock.bind(("",port)) server_sock.listen(1) client_sock,address = server_sock.accept() print "Accepted connection from ",address data = client_sock.recv(1024) print "received [%s]" % data client_sock.close() server_sock.close()
import bluetooth bd_addr = "01:23:45:67:89:AB" port = 1 sock=bluetooth.BluetoothSocket( bluetooth.RFCOMM ) sock.connect((bd_addr,port)) sock.send("hello!!") sock.close() ? 通过L2CAP方式进行通信L2CAP的sockets方式几乎等同于RFCOMM的sockets方式,唯一的不同是通过L2CAP的方式,并且端口是0x1001到0x8FFF之间的奇数端口。默认的连接可以传送的可靠报文是672个字节。 1.服务器端程序 import bluetooth server_sock=bluetooth.BluetoothSocket( bluetooth.L2CAP ) port = 0x1001 server_sock.bind(("",address data = client_sock.recv(1024) print "received [%s]" % data client_sock.close() server_sock.close()
import bluetooth sock=bluetooth.BluetoothSocket(bluetooth.L2CAP) bd_addr = "01:23:45:67:89:AB" port = 0x1001 sock.connect((bd_addr,port)) sock.send("hello!!") sock.close() ? 调整MTU大小 l2cap_sock = bluetooth.BluetoothSocket( bluetooth.L2CAP ) # connect the socket bluetooth.set_l2cap_mtu( l2cap_sock,65535 ) ? refer: An Introduction to Bluetooth Programming Python之蓝牙通信模块pybluez学习笔记 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |