一、准备工作
二、编译 BLE UART Server代码
三、编译 BLE UART Client代码
四、测试

BLE串口透传测试

该教程演示如何通过两块开发板实现BLE数据传输测试，A开发板通过串口接收数据，然后通过BLE传输给B开发板，B开发板通过串口将接收到的数据打印出来；同样，B开发板通过串口接收数据，然后通过BLE传输给A开发板，A开发板通过串口将接收到的数据打印出来。在测试中需要一块开发板做为Server端，另外一块开发板做为Client端，两块开发板配对后就可以互发消息了。

一、准备工作

准备2块BearPi-Pico H2821E开发板

二、编译 BLE UART Server代码

在Windows下编译操作

点击IDE的系统配置按钮, 打开配置界面.
选择Enable BLE UART Server sample
选择协议
按下"Save"键保存配置。
编译烧录固件
参考环境搭建教程编译烧录代码

在Ubuntu下编译操作

在MobaXterm中输入:
```
./build.py menuconfig
```

选择Enable BLE UART Server sample

Application  --->
    [*] Enable Sample.
    [ ]     Enable the Sample of peripheral.
    [*]     Enable the Sample of products.
    [ ]         Enable all the sample of product, it's just for build.
    [*]         Support BLE UART sample.
                    BLE UART Sample Configuration  --->
                        Select ble uart type (Enable BLE UART Server sample.)  --->
                                (X) Enable BLE UART Server sample.
                                ( ) Enable BLE UART Client sample.
    [ ]         Support SLE UART sample.

Alt text

选择协议

Protocol  --->
    Select sle ble support  --->
        ( ) Select sle ble central default.
        (X) Select sle ble peripheral.
        ( ) Select sle peripheral.
        ( ) Select sle central.
        ( ) Select ble peripheral.

Alt text

按下"ESC"键退出并保存配置。
编译烧录固件
参考环境搭建教程编译烧录代码

三、编译 BLE UART Client代码

在Windows下编译操作

点击IDE的系统配置按钮, 打开配置界面.
选择Enable BLE UART Client sample
选择协议
按下"Save"键保存配置。
编译烧录固件
参考环境搭建教程编译烧录代码

在Ubuntu下编译操作

在MobaXterm中输入:
```
./build.py menuconfig
```

选择Enable BLE UART Client sample

Application  --->
    [*] Enable Sample.
    [ ]     Enable the Sample of peripheral.
    [*]     Enable the Sample of products.
    [ ]         Enable all the sample of product, it's just for build.
    [*]         Support BLE UART sample.
                    BLE UART Sample Configuration  --->
                        Select ble uart type (Enable BLE UART Server sample.)  --->
                                ( ) Enable BLE UART Server sample.
                                (X) Enable BLE UART Client sample.
    [ ]         Support SLE UART sample.

Alt text

选择协议

Protocol  --->
    Select sle ble support  --->
        (X) Select sle ble central default.
        ( ) Select sle ble peripheral.
        ( ) Select sle peripheral.
        ( ) Select sle central.
        ( ) Select ble peripheral.

Alt text

按下"ESC"键退出并保存配置。
编译烧录固件
参考环境搭建教程编译烧录代码

四、测试

烧录固件后先启动server设备,再启动client设备，在串口工具的输入框中输入数据并发送，测试server和client设备之间的数据收发，如下图所示。

Alt text