Question

我正在研究Python中的应用程序（目前是2.7，如果需要可以切换到3.3），应该是：

检测蓝牙设备（手指夹式脉搏血氧仪，如果您有兴趣）。
与设备建立连接（受密钥保护）
将数据从设备流式传输到我的计算机
使用数据执行更多（当前无关的）编程

为了实现这一点，我使用了Python的PyBluez库，因为它可能是我发现的文档最多的文档（遗憾的是它仍然很少）与Windows和Python2.7兼容

我对套接字编程很新，所以这可能是一个简单的问题。我遇到的问题是，我似乎无法弄清楚如何连接到设备，因为它是密码保护的。我可以找到它并检索其地址没有问题，我只是不知道在连接时使用什么端口或如何输入密码。

感谢您的帮助！

参考信息：
使用的脉搏血氧仪：http://www.echostore.com/wireless-oximeter-cms50e.html
PyBluez库：http://pybluez.googlecode.com/svn/www/docs-0.7/index.html

Answer 1

我遇到同样的问题，我已经解决了问题，也许你可以尝试一下：

制作一个名为pairtool.exe的Windows工具，它可以帮助您与命令行配对。

dwRet = BluetoothAuthenticateDevice(NULL, NULL, &btdi, L"1234", 4);
if(dwRet != ERROR_SUCCESS)
{
    fprintf(stderr, "BluetoothAuthenticateDevice ret %d\n", dwRet);
    ExitProcess(2);
}

python代码：

def connect2Btdev(devName):
#found the device addr
addr = inquiry(devName)
if addr == None:
   return None

#pairing with pairtool.exe
cmd=r'%s %s' % ('pairtool.exe',addr)
ret = os.system(cmd)

if ret <> 0:
    return None

Answer 2

PyBlueZ不会在此处公开Windows蓝牙身份验证API：https://msdn.microsoft.com/en-us/library/windows/desktop/cc766819(v=vs.85).aspx

解决此问题的一种方法是创建命令行工具并通过Python使用它。要为Windows创建命令行工具，请使用Visual Studio并将必要的库添加到项目链接器属性中：Bthprops.lib和ws2_32.lib

下面是一个项目的代码，用于创建一个带有1个参数的命令行工具，即MAC地址，它使用＆＃34; Just Works＆＃34;配对。请参阅注释代码以使用密钥配对。

#include "stdafx.h"
#include <initguid.h>
#include <winsock2.h>
#include <BluetoothAPIs.h>
#include <ws2bth.h>

BOOL WINAPI BluetoothAuthCallback(LPVOID pvParam, PBLUETOOTH_AUTHENTICATION_CALLBACK_PARAMS pAuthCallbackParams);

int _tmain(int argc, _TCHAR* argv[])
{
    SOCKADDR_BTH sa = { 0 };
    int sa_len = sizeof(sa);
    DWORD dwRet;
    BLUETOOTH_DEVICE_INFO  btdi = { 0 };
    HBLUETOOTH_AUTHENTICATION_REGISTRATION hRegHandle = 0;

    // initialize windows sockets
    WORD wVersionRequested;
    WSADATA wsaData;
    wVersionRequested = MAKEWORD(2, 0);
    if (WSAStartup(wVersionRequested, &wsaData) != 0) {
        ExitProcess(2);
    }

    // parse the specified Bluetooth address
    if (argc < 2) {
        fprintf(stderr, "usage: csbtpair <addr>\n"
            "\n  addr must be in the form (XX:XX:XX:XX:XX:XX)");
        ExitProcess(2);
    }
    if (SOCKET_ERROR == WSAStringToAddress(argv[1], AF_BTH,
        NULL, (LPSOCKADDR)&sa, &sa_len)) {
        ExitProcess(2);
    }

    // setup device info
    btdi.dwSize = sizeof(BLUETOOTH_DEVICE_INFO);
    btdi.Address.ullLong = sa.btAddr;
    btdi.ulClassofDevice = 0;
    btdi.fConnected = false;
    btdi.fRemembered = false;
    btdi.fAuthenticated = false;

    // register authentication callback. this prevents UI from showing up.
    dwRet = BluetoothRegisterForAuthenticationEx(&btdi, &hRegHandle, &BluetoothAuthCallback, NULL);
    if (dwRet != ERROR_SUCCESS)
    {
        fprintf(stderr, "BluetoothRegisterForAuthenticationEx ret %d\n", dwRet);
        ExitProcess(2);
    }

    // authenticate device (will call authentication callback)
    AUTHENTICATION_REQUIREMENTS authreqs = MITMProtectionNotRequired;
    fprintf(stderr, "BluetoothAuthReqs = %d\n", authreqs);
    dwRet = BluetoothAuthenticateDeviceEx(NULL, NULL, &btdi, NULL, authreqs);
    if (dwRet != ERROR_SUCCESS)
    {
        fprintf(stderr, "BluetoothAuthenticateDevice ret %d\n", dwRet);
        if (dwRet == ERROR_CANCELLED)
        {
            fprintf(stderr, "Cancelled");
        }
        else if (dwRet == ERROR_INVALID_PARAMETER)
        {
            fprintf(stderr, "Invalid Parameter");
        }
        else if (dwRet == ERROR_NO_MORE_ITEMS)
        {
            fprintf(stderr, "Already paired!");
        }
    }

    fprintf(stderr, "pairing finish\n");
    ExitProcess(0);
    return 0;
}

// Authentication callback
BOOL WINAPI BluetoothAuthCallback(LPVOID pvParam, PBLUETOOTH_AUTHENTICATION_CALLBACK_PARAMS pAuthCallbackParams)
{
    DWORD dwRet;

    fprintf(stderr, "BluetoothAuthCallback 0x%x\n", pAuthCallbackParams->deviceInfo.Address.ullLong);
    BLUETOOTH_AUTHENTICATE_RESPONSE AuthRes;
    AuthRes.authMethod = pAuthCallbackParams->authenticationMethod;
    fprintf(stderr, "Authmethod %d\n", AuthRes.authMethod);
    // Check to make sure we are using numeric comparison (Just Works)
    if (AuthRes.authMethod == BLUETOOTH_AUTHENTICATION_METHOD_NUMERIC_COMPARISON) 
    {
        fprintf(stderr, "Numeric Comparison supported\n");
    }
    AuthRes.bthAddressRemote = pAuthCallbackParams->deviceInfo.Address;
    AuthRes.negativeResponse = FALSE;

    // Commented out code is used for pairing using the BLUETOOTH_AUTHENTICATION_METHOD_PASSKEY method
    //memcpy_s(AuthRes.pinInfo.pin, sizeof(AuthRes.pinInfo.pin), L"1234", 0);
    //AuthRes.pinInfo.pinLength = 0;
    // Respond with numerical value for Just Works pairing
    AuthRes.numericCompInfo.NumericValue = 1;

    // Send authentication response to authenticate device
    dwRet = BluetoothSendAuthenticationResponseEx(NULL, &AuthRes);
    if (dwRet != ERROR_SUCCESS)
    {
        fprintf(stderr, "BluetoothSendAuthenticationResponseEx ret %d\n", dwRet);
        if (dwRet == ERROR_CANCELLED)
        {
            fprintf(stderr, "Bluetooth device denied passkey response or communicatino problem.\n");
        }
        else if (dwRet == E_FAIL)
        {
            fprintf(stderr, "Device returned a failure code during authentication.\n");
        }
        else if (dwRet == 1244)
        {
            fprintf(stderr, "Not authenticated\n");
        }
    }
    else
    {
        fprintf(stderr, "BluetoothAuthCallback finish\n");
    }

    return 1; // This value is ignored
}

您可以尝试使用此预先制作的解决方案，而不是自己创建它： http://bluetoothinstaller.com/bluetooth-command-line-tools/ 它对我的特定解决方案不起作用。

然后，您需要以管理员身份从python运行下载的或自定义的命令行工具。为了可靠地执行此操作，我建议使用stackoverflow问题： How to run python script with elevated privilege on windows

Python PyBluez连接到passkey受保护的设备

2 个答案: