我们可以通过 BLE 的蓝牙与 Android 配对多少设备? [英] How many devices we can pair via Bluetooth of BLE to Android?

问题描述

使用 Android 上的 BLE 固件，一次可以通过蓝牙连接多少台设备?

How many devices can be connected to at one time via Bluetooth using the BLE firmware on Android?

推荐答案

Android 蓝牙固件搜索 source 显示以下内容:

A search of the Android Bluetooth Firmware source shows the following:

最大并发活动同步连接(BTA_GATTC_CONN_MAX):

Max concurrent active synchronous connections (BTA_GATTC_CONN_MAX):

• Android 4.3 上的 4
• Android 4.4+ 上的 7

最大并发活动通知(BTA_GATTC_NOTIF_REG_MAX):

Max concurrent active notifications (BTA_GATTC_NOTIF_REG_MAX):

• Android 4.3 上的 4
• Android 4.4 上的 7
• 15 在 Android 5.0+ 上

作为对比，我使用 iOS 的体验是可以同时连接 8 台设备.

As a comparison my experience with iOS is that 8 devices can be connected at at time.

前几天我尝试在 Android 7.1 上连接超过 7 台设备，但蓝牙停止响应.启动和停止没有帮助；唯一修复它的是重新启动设备.

I tried connecting more than 7 devices the other day on Android 7.1 and Bluetooth stopped responding. Starting and stopping didn't help; the only thing that fixed it was restarting the device.

在使用连接到 4 个以上设备的多个应用程序后，我可以根据经验说这些数字是理论上的.根据每个单独的设备及其硬件，您将更容易或更难连接和保持与最大数量的 BLE 设备的连接.

After working with several apps that connect to 4+ devices I can say from experience that these numbers are theoretical. Depending on each individual device and its hardware you'll have an easier or harder time connecting to and maintaining a connection to the maximum number of BLE devices.

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