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
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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。
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在 BLE Server 端 ， 可以使用 “AT+BLEADVPARAM” 指令设置 Coded PHY 模式
2、增大 BLE RF Power
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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”
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Bluetooth LE 客户端读写服务特征值
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Bluetooth LE 服务端读写服务特征值
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Bluetooth LE 连接加密
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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
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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+RESTORE
AT+CWMODE=0
AT+BLEINIT=2 //ESP32-C3 初始化为 BLE Server 模式
AT+SYSMSG=7
AT+RFPOWER=,15,15,15 // 设置 BLE5.0 RF Power
AT+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+RESTORE
AT+CWMODE=0
AT+BLEINIT=1 //ESP32-C3 初始化为 BLE Client 模式
AT+SYSMSG=7
AT+RFPOWER=,15,15,15 // 设置 BLE TX power
AT+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=0,3
AT+BLEGATTCWR=0,3,6,1,2
0100 // 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=0
AT+BLEINIT=2 //ESP32-C3 初始化 BLE server 模式
AT+SYSMSG=7
AT+RFPOWER=,15,15,15 // 设置 BLE RF power
AT+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=0
AT+BLEINIT=1 //ESP32-C3 初始化 BLE Client 模式
AT+SYSMSG=7
AT+RFPOWER=,15,15,15 // 设置 BLE RF Power
AT+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=0
AT+BLEGATTCCHAR=0,3
AT+BLESPPCFG=1,3,5,3,7
AT+BLESPP
+++
测试结果
