Last modified by Mengting Qiu on 2025/07/03 18:55

From version 229.6
edited by Mengting Qiu
on 2025/06/16 09:13
Change comment: There is no comment for this version
To version 228.7
edited by Mengting Qiu
on 2025/06/16 09:05
Change comment: There is no comment for this version

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1034 1034  
1035 1035  Only supports valid **HEX-format downlink commands** corresponding to AT command.
1036 1036  
1037 -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:
1038 -Downward format: (% style="color:blue" %)**01000384**(%%)  ~/~/ There are no Spaces. 0x0384(H)=900(D), that is, modify TDC to 900 seconds.
1039 -
1040 -[[image:1750035991532-434.png||height="237" width="495"]]
1041 -
1042 -
1043 1043  (% data-sider-select-id="90b80f1a-e924-4c8a-afc5-4429e019a657" %)
1044 -=== **MQTT Protocol:** ===
1038 +=== MQTT: ===
1045 1045  
1046 -Supports both **JSON-format** and **HEX-format** downlink commands (corresponding to AT commands).
1047 1047  
1048 -//Example~:// For the S31-NB's uplink interval modification (AT+TDC=900):
1049 -
1050 -
1051 1051  Json:
1052 1052  
1053 1053  The Json format in MQTT mode needs to be configured with all commands.
1750035991532-434.png
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1 -XWiki.ting
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