求教关于BLE从机向主机发送数据GATT

Posted 2023-03-14

参考技术A 非常感谢你的回复。 你给的这个例子是操作socket的，读到数据后要自己解析，需自己实现很多的代码，实际上android的sdk库已封装了很多的类，来对蓝牙的service，charactic等。 参考技术B SOCKET是Android4.3系统之前的API ，开始模式，现在都封装很好的API，请见4.3的API，都是Service、Chara等等

蓝牙 GATT 向 BLE 设备发送数据

【中文标题】蓝牙 GATT 向 BLE 设备发送数据

【英文标题】：Bluetooth GATT send data to BLE device

【发布时间】：2021-05-20 05:52:26

【问题描述】：

如何向 BLE 设备发送数据。我已经连接到 ble 设备，但不知道如何通过 Gatt 回调发送和接收数据。

【问题讨论】：

确切的 API（函数）取决于操作系统，但发送数据的常用方法是写入可写特征值。有两种接收数据的方式：从可读特征读取或订阅通知或指示。详细说明可以通过这个链接找到：btframework.com/ble.htm

我正在使用 Android。我设法连接了两个设备。我现在只需要在 BLE 上读写数据。

不幸的是我不熟悉 Android 开发，但快速的谷歌搜索给出了这个链接：github.com/android/connectivity-samples/tree/master/…

【参考方案1】：

请查看以下有助于您入门的资源：-

Ultimate Guide to Android BLE Development Building Android Apps to Control Bluetooth LE Devices Android Lollipop: BLE Matures (video) Bluetooth LE Send String Data Between Two Devices How to Use Android BLE to Communicate with Bluetooth Devices