然后我就查询了可用的AT指令，发现没有和蓝牙相关的指令
发送 AT+HELP
返回 AT+HELP
AT:Test cmd
AT+HELP:Show cmd list
AT+RST:Soft restart
AT+RESTORE:Restore setting
ATE1:Enable echo
ATE0isable echo
AT+GMR:Show version info
AT+UARTCFGuery and set AT UART config
AT+SYSIOMAPuery and set IO map
AT+SYSGPIOWRITE:Set GPIO out level
AT+SYSGPIOREAD:Get GPIO level
AT+WMODEuery an set WIFI mode
AT+WSCAN:Scan WIFI list
AT+WSCANOPT:Scan WIFI list option
AT+WJAP:Join AP
AT+WAUTOCONN:Set WIFI auto connect
AT+WAPDHCPuery and set AP DHCP
AT+WAPuery and set AP config
AT+PINGing test
AT+CIPSTAMAC_DEFuery and set WIFI station MAC
AT+WCOUNTRYuery and set country code
AT+WRSSIuery RSSI
AT+SOCKET:Create socket
AT+SOCKETSEND:Socket send data
AT+SOCKETSENDLINE:Socket send data in one line
AT+SOCKETREAD:Socket read data
AT+SOCKETDELelete socket
AT+SOCKETRECVCFG:Set socket recive mode
AT+SOCKETTT:Start socket transparent transmission
AT+SOCKETAUTOTT:Set socket auto transparent transmission
AT+MQTT:Config and connect MQTT
AT+MQTTPUBublish MQTT message
AT+MQTTPUBRAWublish long MQTT message
AT+MQTTSUB:Subscribe MQTT Topic
AT+MQTTUNSUB:Unsubscribe MQTT Topic
AT+HTTTPCLIENTLINE:Initiate an http or https request
AT+HTTPCLIENTLINE:Initiate an http or https request
AT+NodeMCUTEST:Set development board test function
AT+GPIOTEST:Start GPIO test
AT+LEDTEST:Start test board LED test
AT+TEST:board test
isable echo
uery and set AT UART config
ing test
