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AT
//返回 OKAT+RST
//复位AT+RESTORE
//恢复出厂设置AT+CWMODE=1
//设置模式,可连接wifi热点AT+CWJAP="WIFI名字","WIFI密码"
//连接热点AT+CWJAP="qjl","11111111"
AT+CWJAP?
//检测是否连接上热点AT+CIPSNTPCFG=1,8,"ntp1.aliyun.com"
//连接阿里云的网站AT+MQTTUSERCFG=0,1,"NULL",“下图的用户名",“下图的密码”,0,0,""
AT+MQTTUSERCFG=0,1,"NULL","LED1&a1n2p8YJOux","2f14f1e99372c0b47cc475804da435ddd2330bbde9dec9783a63f88b1c30797b",0,0,""
AT+MQTTCLIENTID=0,"下图的clientld"
AT+MQTTCLIENTID=0,"a1n2p8YJOux.LED1|securemode=2\,signmethod=hmacsha256\,timestamp=1709691140893|"
AT+MQTTCONN=0,"下图的mqttHostUrl",1883,1
AT+MQTTCONN=0,"a1n2p8YJOux.iot-as-mqtt.cn-shanghai.aliyuncs.com",1883,1
解决:看一下之前的手机热点是不是长时间没连接给自动关闭了,我当时就是这个地方出问题,所以才一直显示ERROR。
//连接成功后,发现物联网平台设备在线。
AT+MQTTSUB=0,"/sys/a1n2p8YJOux/LED1/thing/service/property/set",1
(2)发布内容,更改物联网平台数据
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