ESP8266 MQTT透传固件连接server_网络透传模块作为tcp client 不用at指令怎么连接server-优快云博客

本文链接：https://blog.youkuaiyun.com/Alenfun/article/details/114988114

本文详细介绍了使用ESP8266模块通过MQTT透传固件连接服务器的过程，包括复位模组、设置Wi-Fi模式、连接AP、获取IP地址、配置MQTT参数、建立连接、订阅及发布主题等步骤。

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ESP8266 MQTT透传固件连接server

复位模组
```
AT+RST

OK
```

检测模组模式（购买ESP8266默认样品 AP模式）

/*
    Wi-Fi Mode
    0: Null mode, WiFi RF will be disabled
    1: Station mode
    2: SoftAP mode
    3: SoftAP+Station mode
*/
AT+CWMODE?
+CWMODE:2

OK
    
//如果上边 mode = 1 则不做设置
AT+CWMODE=1
    
OK

设置AP的SSID和Password
```
AT+CWJAP="Alen","12341234"

OK
```

检测AP连接状态

/*
    <stat>: status of the ESP8266 Station interface.
    0: The ESP8266 station is inactive.
    1: The ESP8266 station is idle.
    2: The ESP8266 Station is connected to an AP and its IP is obtained.
    3: The ESP8266 Station has created a TCP or UDP transmission.
    4: The TCP or UDP transmission of ESP8266 Station is disconnected.
    5: The ESP8266 Station does NOT connect to an AP.
*/
//status为2则成功连接AP并分配到IP
AT+CIPSTATUS
STATUS:2

OK

获取STA IP和MAC

AT+CIFSR
+CIFSR:STAIP,"192.168.101.212"
+CIFSR:STAMAC,"84:cc:a8:b4:49:cf"

OK

MQTT参数设置

AT+MQTTUSERCFG=0,1,"FFFF0000AA000001","FFFF0000AA000001","88D138323DFE4D17E92F574F59B379332FA9D5FB",0,0,""

OK

发送MQTT连接

AT+MQTTCONN=0,"192.168.101.175",1883,1
+MQTTCONNECTED:0,1,"192.168.101.175","1883","",1

OK

订阅主题

AT+MQTTSUB=0,"/sys/FFFF0000AA000001/thing/service/property/set",1

OK

发布消息

//发布字符串
AT+MQTTPUB=0,"/sys/FFFF0000AA000001/thing/service/property/update","Hello",1,0
    
OK
    
//发布二进制流
AT+MQTTPUBRAW=0,"/sys/FFFF0000AA000001/thing/service/property/update",5,1,0
    
OK
>

//向串口发送待发送的数据
{0x01,0x02,0x03,0x04,0x05}