AT指令连接阿里云平台
1.复位
AT+RST
2.设置为sta模式
AT+CWMODE=1
3. 开启SNTP服务器，8时域，SNTP服务器为阿里云域名
AT+CIPSNTPCFG=1,8,"ntp1.aliyun.com"
4. 连接wifi。"WIFI名称，"WIFI密码"
AT+CWJAP="AccessPoint","QsXf152130"
5. 配置 MQTT "username"，"passwd"，注意最后两个""
AT+MQTTUSERCFG=0,1,"NULL","ESP8266TEST&hk4yOhar51x","ea87bcd36157636d950122fdac52a5111770e7f0c25d78f65ba3b353da6ee12e",0,0,""
6. 配置MQTT"clientId"。注意每个逗号前面的\不能少，少了会返回error
AT+MQTTCLIENTID=0,"hk4yOhar51x.ESP8266TEST|securemode=2\,signmethod=hmacsha256\,timestamp=1663342093355|"
7. 连接/查询 MQTT Broker,"mqttHostUrl"
AT+MQTTCONN=0,"iot-06z00gv6z39bwjz.mqtt.iothub.aliyuncs.com",1883,1
至此，模块已经成功连接阿里云平台
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8.订阅主题，"格式"（产品-Topic类列表中复制粘贴）
AT+MQTTSUB=0,"/sys/gavk88e3djY/C6T6/thing/service/property/set",1
9.发布主题,"格式"（产品-Topic类列表中复制粘贴）,"发布的文本"
AT+MQTTPUB=0,"/sys/gavk88e3djY/C6T6/thing/event/property/post",“test”,1,0
MQTT的连接参数可以在阿里云平台里面直接复制粘贴，不需要再使用配置软件去配置
10.发布物模型，"复制产品-Topic类列表-物模型通信Topic-属性上报发布一栏"，"物模型标识符"
AT+MQTTPUB=0,"/sys/hk4yOhar51x/ESP8266TEST/thing/event/property/post","{\"method\":\"thing.service.property.set\"\,\"id\":\"2012934115\"\,\"params\":{\"temperature\":16.6}\,\"version\":\"1.0.0\"}",1,0
- 下图为串口助手的发送记录：
AT+RST
OK
WIFI DISCONNECT
s$ l溸| 刲鄚??l??c|幟??抺抍??#捏o'焏gn溿??c8淝d{l{lp??????dcg銃那AT+MQTTPUB=0,"/sys/hk4yOhar51x/ESP8266TEST/thing/event/property/post","{\"method\":\"thing.service.property.set\"\,\"id\":\"2012934115\"\,\"params\":{\"temperature\":16.6}\,\"version\":\"1.0.0\"}",1,0
busy p...
+MQTTSUBRECV:0,"/sys/hk4yOhar51x/ESP8266TEST/thing/event/property/post_reply",113,{"code":200,"data":{},"id":"2012934115","message":"success","method":"thing.event.property.post","version":"1.0"}
OK
AT+MQTTPUB=0,"/sys/hk4yOhar51x/ESP8266TEST/thing/event/property/post","{\"method\":\"thing.service.property.set\"\,\"id\":\"2012934115\"\,\"params\":{\"temperature\":62.5\,\"humi\":66}\,\"version\":\"1.0.0\"}",1,0
busy p...
+MQTTSUBRECV:0,"/sys/hk4yOhar51x/ESP8266TEST/thing/event/property/post_reply",113,{"code":200,"data":{},"id":"2012934115","message":"success","method":"thing.event.property.post","version":"1.0"}
OK