基于python实现蓝牙通信代码实例

Python  /  管理员 发布于 7年前   260

这篇文章主要介绍了基于python实现蓝牙通信代码实例,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

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 btleclass MyDelegate(btle.DefaultDelegate):def __init__(self, params):btle.DefaultDelegate.__init__(self)#...initialise heredef 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 calledcontinueprint "Waiting..."#Perhaps do somethingelse here

蓝牙通信模块pybluez的使用

选择蓝牙通信对象

import bluetoothtarget_name = "My Device"target_address = Nonenearby_devices = bluetooth.discover_devices()for bdaddr in nearby_devices:if target_name == bluetooth.lookup_name(bdaddr):target_address = bdaddrbreakif 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 bluetoothnearby_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 bluetoothserver_sock = bluetooth.BluetoothSocket(bluetooth.RFCOMM)port = 1server_sock.bind(("", port))server_sock.listen(1)client_sock, address = server_sock.accept()print "Accepted connection from ",addressdata = client_sock.recv(1024)print "received [%s]" % dataclient_sock.close()server_sock.close()

2. 客户端程序

import bluetoothbd_addr = "01:23:45:67:89:AB"port = 1sock = 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 bluetoothserver_sock = bluetooth.BluetoothSocket(bluetooth.L2CAP)port = 0x1001server_sock.bind(("", port))server_sock.listen(1)client_sock, address = server_sock.accept()print "Accepted connection from ",addressdata = client_sock.recv(1024)print "received [%s]" % dataclient_sock.close()server_sock.close()

2.客户端程序

import bluetoothsock=bluetooth.BluetoothSocket(bluetooth.L2CAP)bd_addr = "01:23:45:67:89:AB"port = 0x1001sock.connect((bd_addr, port))sock.send("hello!!")sock.close()

调整MTU大小

l2cap_sock = bluetooth.BluetoothSocket( bluetooth.L2CAP )# connect the socketbluetooth.set_l2cap_mtu( l2cap_sock, 65535 )

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。