Linux 端蓝牙调试

@(嵌入式)[BLE, ble]

毕业大半年一直从事Ble外设开发，发现linux上可以使用bluez进行蓝牙开发，更加便捷的是，有一个python模块对bluez接口进行封装，叫bluepy，给开发测试带来更多便捷。

获取 & 安装

开发平台 ubunt 14.04

$ sudo apt-get install git build-essential libglib2.0-dev$ git clone https://github.com/IanHarvey/bluepy.git$ cd bluepy$ python setup.py build$ python setup.py install

个人测试脚本库mybluepy, 没怎么写过python，供参考。

使用 hcitool & gatttool

安装了bluez协议栈后提供的工具，简单操作如下。

• 查看蓝牙pc的设备

hcitool dev

• 扫描ble

hcitool lescan

• 设置gatttool

 gatttool  -b 76:66:44:33:22:72 -I

-I : 进入交互模式

• 在gatttool下，
  开始连接设备 ： connect
  输入 ： help查看其他指令

• 输入characteristics 查看特征值信息，结果大概如下

handle: 0x0022, char properties: 0x1a, char value handle: 0x0023, uuid: 0000a802-0000-1000-8000-00805f9b34fb

如上， handle 0x0023 写数据， 向0x0023+1 写 0x0100，设置监听，写0取消监听

bluepy 脚本

模块文档
提供一个简单的例子：

#!/usr/bin/pythonfrom __future__ import print_functionimport sysimport binasciiimport btleimport osble_conn = Noneclass MyDelegate(btle.DefaultDelegate):    def __init__(self, conn):        btle.DefaultDelegate.__init__(self)        self.conn = conn    def handleNotification(self, cHandle, data):        data = binascii.b2a_hex(data)        print("Notification:", str(cHandle), " data ", data)    def handleDiscovery(self, dev, isNewDev, isNewData):        if isNewDev:            pass        elif isNewData:            print("\nDiscovery:", "MAC:", dev.addr, " Rssi ", str(dev.rssi))def ble_connect(devAddr):    global ble_conn    if not devAddr is None and ble_conn is None:        ble_conn = btle.Peripheral(devAddr, btle.ADDR_TYPE_PUBLIC)        ble_conn.setDelegate(MyDelegate(ble_conn))        print("connected")def ble_disconnect():    global ble_conn    ble_conn = None    print("disconnected")if __name__ == '__main__':    ble_mac == "66:55:44:33:22:11"    # scan     scanner = btle.Scanner().withDelegate(MyDelegate(None))    timeout = 10.0    devices = scanner.scan(timeout)    for dev in devices:        if dev.addr == ble_mac:            print("\nDiscovery:", "MAC:", dev.addr, " Rssi ", str(dev.rssi))            for (adtype, desc, value) in dev.getScanData():                print ("  %s(0x%x) = %s" % (desc, int(adtype), value))            break    # connect      ble_connect(ble_mac)    # write , set listen    snd_content_str = """\x01\x00"""    ble_conn.writeCharacteristic(handle, snd_content_str)    # wait notification      ble_conn.waitForNotifications(2.0)    # disconnect     ble_disconnect()

参考

• get start with bluez