使用 2 个 ESP32-C3 ESP-AT 测试 BLE5.0 Long Rang 模式进行数据透传的流程

基于 AT 固件测试 BLE5.0 Long Rang 模式，可以使用如下方式：

1、设置 BLE5.0 Coded PHY 模式

• 在 BLE Client 端，可以使用 “AT+BLESETPHY” 设置当前连接的 PHY 模式为 Coded PHY 模式。

• 在 BLE Server 端 ， 可以使用 “AT+BLEADVPARAM” 指令设置 Coded PHY 模式

2、增大 BLE RF Power

• 可以使用 “AT+RFPOWER” 指令来设置 BLE RF Power

  AT+RFPOWER=,15,15,15
  

以下将提供基于 AT 固件使用 2 个 ESP32-C3 设备，测试 BLE5.0 Long RangCoded PHY 扩展广播数据透传的 AT 指令序列

可参考“Bluetooth LE AT 示例”

• Bluetooth LE 客户端读写服务特征值

• Bluetooth LE 服务端读写服务特征值

• Bluetooth LE 连接加密

• 两个 ESP32-C3 开发板之间建立 SPP 连接，以及在 UART-Bluetooth LE 透传模式下传输数据

• ESP32-C3 与手机建立 SPP 连接，以及在 UART-Bluetooth LE 透传模式下传输数据

BLE Server 发数据给 BLE Client 的 AT 指令序列

• BLE Server 端的 AT 指令序列

AT+RESTOREAT+CWMODE=0AT+BLEINIT=2            //ESP32-C3 初始化为 BLE Server 模式
AT+SYSMSG=7AT+RFPOWER=,15,15,15    // 设置 BLE5.0 RF  PowerAT+BLEADVPARAM=40,40,6,0,7,0,,,3,3           // 设置 BLE5.0 扩展广播模式和 Coded PHY 模式AT+BLEGATTSSRVCRE             AT+BLEGATTSSRVSTART          AT+BLEGATTSCHAR?AT+BLEADDR?              AT+BLEADVDATA="0201060303F0AB0409636263"               //设置 BLE 广播数据和名称AT+BLEADVSTART           AT+BLESPPCFG=1,1,6,1,5      //建立 BLE 连接之后设置此参数AT+BLESPP        //在 BLE Client 端完成 0100 步骤后执行此指令+++              //不带换行，退出 BLESPP 透传模式

• BLE Client AT 指令序列

AT+RESTOREAT+CWMODE=0AT+BLEINIT=1             //ESP32-C3 初始化为 BLE Client 模式AT+SYSMSG=7AT+RFPOWER=,15,15,15           // 设置 BLE TX powerAT+BLESCAN=1,1,2,"cbc"         //以指定 NAME 扫描 BLE 设备AT+BLECONN=0,"7c:df:a1:a4:a0:a2"        //与指定 MAC 设置建立 BLE 连接AT+BLESETPHY=0,3                //设置 BLE5.0 Coded PHY 模式AT+BLEGATTCPRIMSRV=0            //GATTC 发现 BLE 连接号为 0 的基本服务AT+BLEGATTCCHAR=0,3AT+BLEGATTCWR=0,3,6,1,20100                // hex 十六进制格式输入 0100 ，不带换行

测试结果

BLE Client 发数据给 BLE Server 的 AT 指令序列

可参考“两个 ESP32-C3 开发板之间建立 SPP 连接，以及在 UART-Bluetooth LE 透传模式下传输数据”

BLE Server AT 指令序列

AT+CWMODE=0AT+BLEINIT=2                     //ESP32-C3 初始化 BLE server 模式AT+SYSMSG=7AT+RFPOWER=,15,15,15             // 设置 BLE RF powerAT+BLEADVPARAM=40,40,6,0,7,0,,,3,3                     //设置 BLE5.0 扩展广播模式和 Coded PHY 模式AT+BLEGATTSSRVCRE           AT+BLEGATTSSRVSTART          AT+BLEGATTSCHAR?AT+BLEADDR?               AT+BLEADVDATA="0201060303F0AB0409636263"               //设置 BLE 广播数据和名称，需在 BLEADVPARAM 之后设置AT+BLEADVSTART            

BLE Client AT 指令序列

AT+CWMODE=0AT+BLEINIT=1            //ESP32-C3 初始化 BLE Client 模式AT+SYSMSG=7AT+RFPOWER=,15,15,15    // 设置 BLE RF PowerAT+BLESCAN=1,1,2,"cbc"AT+BLECONN=0,"7c:df:a1:a4:a0:a2"AT+BLESETPHY=0,3                   //设置 BLE5.0 Coded PHY 模式AT+BLEGATTCPRIMSRV=0AT+BLEGATTCCHAR=0,3AT+BLESPPCFG=1,3,5,3,7AT+BLESPP     +++

测试结果