Skip to Content
Last modified by Mengting Qiu on 2025/06/18 15:53
From version 141.1
edited by Mengting Qiu
on 2025/06/16 10:11
Change comment: Uploaded new attachment "1750039871468-460.png", version {1}
To version 141.9
edited by Mengting Qiu
on 2025/06/16 10:14
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -1006,13 +1006,25 @@
1006 1006  
1007 1007  Only supports valid **HEX-format downlink commands** corresponding to AT command.
1008 1008  
1009 -Take the AT+TDC command of S31-NB as an example, that is, only the valid HEX format downstream command corresponding to the AT+TDC command can be used:
1009 +Take the AT+TDC command of S31-CB as an example, that is, only the valid HEX format downstream command corresponding to the AT+TDC command can be used:
1010 1010  Downward format: (% style="color:blue" %)**01000384**(%%)  ~/~/ There are no Spaces. 0x0384(H)=900(D), that is, modify TDC to 900 seconds.
1011 1011  
1012 +[[image:1750039871468-460.png||height="299" width="600"]]
1012 1012  
1013 -(% data-sider-select-id="90b80f1a-e924-4c8a-afc5-4429e019a657" %)
1014 -=== MQTT: ===
1014 +=== **MQTT Protocol:** ===
1015 1015  
1016 +Supports both **JSON-format** and **HEX-format** downlink commands (corresponding to AT commands).
1017 +
1018 +//Example~:// For the S31-CB's uplink interval modification (AT+TDC=900):
1019 +
1020 +* HEX format: (% style="color:blue" %)**01000384**(%%)  ~/~/ There are no Spaces. 0x0384(H)=900(D), that is, modify TDC to 900 seconds.
1021 +* JSON format: (% style="color:blue" %)**{AT+TDC=900}**(%%)**  **~/~/ The correct format is (% style="color:blue" %)**{AT Command}**(%%). No extra characters other than valid AT commands can be added within {}.
1022 +
1023 +(% style="color:red" %)**Note:**
1024 +
1025 +
1026 +
1027 +
1016 1016  Json：
1017 1017  
1018 1018  The Json format in MQTT mode needs to be configured with all commands.