低功耗蓝牙连接 [英] Bluetooth Low Energy connection

问题描述

我正在尝试为Win 8.1 PC开发一个与我的BLE设备通信的应用程序.我读到Win 8中没有类似BLE扫描功能的内容，因此我从MS阅读了一些示例，并尝试使用UUID简单连接到我的设备:"A9DA45B4-34F8-C660-591D-F6918B5B988C"

I'm trying to develop an app for Win 8.1 PC to communicate with my BLE device. I read that in Win 8 there is no something like scanning functionality for BLE so I read some examples from MS and try to simple connect to my device with UUID: "A9DA45B4-34F8-C660-591D-F6918B5B988C"

所以我根据ms示例编写一些代码:

So I write some code based on ms examples:

 var devices = await DeviceInformation.FindAllAsync(
            GattDeviceService.GetDeviceSelectorFromUuid(new Guid("A9DA45B4-34F8-C660-591D-F6918B5B988C")), new string[] { "System.Devices.ContainerId" });

 if (devices.Count > 0){
    //Do something
 }

但是此代码始终向我返回空设备列表.而且，我仍然可以通过Android或iOS应用程序连接设备.

But this code always return me empty devices list. More over I am still able to connect my device by Android or iOS app.

有人可以告诉我连接BLE的好方法吗?

Can someone told me if it is good way to connect BLE?

推荐答案

转到设置->更改PC设置->-> PC和设备->蓝牙.

Go to Settings --> Change PC Settings --> --> PC and devices --> Bluetooth.

确保您的设备可被发现，然后建立连接.

Make sure that your device is discoverable, then establish a connection.

完成后再试一次，如果仍然不起作用，请尝试以下代码:

Try again when you're done, if it still doesn't work, try with following code:

var devices = await DeviceInformation.FindAllAsync(
        GattDeviceService.GetDeviceSelectorFromUuid(GattServiceUuids.GenericAccess));

devices.Count应该至少返回1.

devices.Count should return at least 1.

这篇关于低功耗蓝牙连接的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！