AT+QMTCONN AT指令：建立MQTT连接 | 物联网设备通信

AT+QMTCONN\u662f\u7528\u4e8e\u5efa\u7acbMQTT\u8fde\u63a5\u7684AT\u6307\u4ee4\u3002\n\nMQTT\uff08Message Queuing Telemetry Transport\uff09\u662f\u4e00\u79cd\u8f7b\u91cf\u7684\u6d88\u606f\u4f20\u8f93\u534f\u8bae\uff0c\u5b83\u57fa\u4e8e\u53d1\u5e03\u2f\u8ba2\u9605\u6a21\u5f0f\uff0c\u5e38\u5e38\u7528\u4e8e\u7269\u8054\u7f51\u8bbe\u5907\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u901a\u4fe1\u3002\n\nAT+QMTCONN\u6307\u4ee4\u7528\u4e8e\u8fde\u63a5\u5230MQTT\u670d\u52a1\u5668\u3002\u901a\u8fc7\u53d1\u9001\u8be5\u6307\u4ee4\uff0c\u8bbe\u5907\u53ef\u4ee5\u5c06\u81ea\u8eab\u6ce8\u518c\u5230MQTT\u670d\u52a1\u5668\uff0c\u5e76\u4e0e\u670d\u52a1\u5668\u5efa\u7acb\u6c38\u6052\u7684\u8fde\u63a5\u3002\u5728\u6210\u529f\u8fde\u63a5\u540e\uff0c\u8bbe\u5907\u53ef\u4ee5\u63a5\u53d7\u6765\u81ea\u670d\u52a1\u5668\u7684\u6d88\u606f\uff0c\u5e76\u5411\u670d\u52a1\u5668\u53d1\u9001\u6d88\u606f\u3002\n\n\u8be5\u6307\u4ee4\u7684\u8bed\u6cd5\u4e3a\uff1aAT+QMTCONN=,,\uff0c\u5176\u4e2d\u662f\u8bbe\u5907\u7684\u552f\u4e00\u8bc6\u522b\u7b26\u53f7\uff0c\u548c\u662f\u7528\u4e8e\u8ba4\u8bc1\u7684\u7528\u6237\u540d\u548c\u5bc6\u7801\u3002\n\n\u4f7f\u7528AT+QMTCONN\u6307\u4ee4\u53ef\u4ee5\u5b9e\u73b0\u8bbe\u5907\u4e0eMQTT\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u53ef\u9760\u901a\u4fe1\uff0c\u5e76\u5b9e\u65f6\u4f20\u8f93\u6570\u636e\u3002