Type Syntax Returned Result
•
<topic> is the subscribe topic title
with a maximum length of 246
characters. Topic titles cannot
contain special characters.
•
<status> is:
•
0 – successfully installed the
subscribe topic
•
-1 – AWS rejected the
subscribe request
•
-2 – socket already in use
or
ERROR – the command failed. Check you
have sent the AT+ETMSTATE=startmqtt
command to enable MQTT.
Example:
AT+EMQSUBOPEN=1,SubscribeFromCloud1
OK
+EMQSUBOPEN: 1,0
AT+EMQSUBOPEN?
OK
+EMQSUBOPEN topics:
0 SubscribeFromCloud0
1 SubscribeFromCloud1
53
Eseye-enabled Quectel BG96 module Developer Guide v1.8
MQTT telemetry ATcommands
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