版本信息AT+GMR
GPIO指令
查询IO映射表 AT+SYSIOMAP?
+SYSIOMAP:PinNumber:22,PinMap:49,50,NC,51,NC,52,53,NC,8,12,13,16,NC,NC,NC,26,NC,27,30,31,NC,NC
led pin index: 1, 2, 4 6 7
设置 GPIO 输出电平 AT+SYSGPIOWRITE=<pin>,<level>
点灯测试
AT+SYSGPIOWRITE=1,1
AT+SYSGPIOWRITE=2,1
AT+SYSGPIOWRITE=4,1
AT+SYSGPIOWRITE=6,1
AT+SYSGPIOWRITE=7,1
WiFi指令
扫描WiFi AT+WSCAN
连接WiFi AT+WJAP=<ssid>,<pwd>[,<bssid>]
查询WIFI信息 AT+WJAP?
TCP指令
电脑端开启TCPServer
创建socket连接 AT+SOCKET=<type>[,<remote host>],<port>[,<keep alive>,<conID>]
连接电脑端TCPServer AT+SOCKET=4,192.168.0.100,777
通过socket发送数据 AT+SOCKETSENDLINE=<ConID>,<length>,<data>
MQTT指令
MQTT配置 AT+MQTT=<key>,<data>
依次发送下面的指令，连接巴法云MQTT
AT+MQTT=1,bemfa.com
AT+MQTT=2,9501
AT+MQTT=3,1
AT+MQTT=4,<client_id>
AT+MQTT
AT+MQTT?
巴法云网页端添加主题BW20
订阅MQTT主题 AT+MQTTSUB=<topic>,<qos>
查询MQTT订阅的主题 AT+MQTTSUB?
发布MQTT消息 AT+MQTTPUB=<topic>,<qos>,<Retained>,<payload>
接收MQTT消息
