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Last modified by Mengting Qiu on 2025/07/17 10:51
From version 231.1
edited by Xiaoling
on 2025/06/17 15:15
Change comment: There is no comment for this version
To version 231.3
edited by Mengting Qiu
on 2025/07/03 18:47
Change comment: There is no comment for this version

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1 -XWiki.Xiaoling
1 +XWiki.ting
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1043 1043  (% data-sider-select-id="90b80f1a-e924-4c8a-afc5-4429e019a657" %)
1044 1044  === **MQTT Protocol:** ===
1045 1045  
1046 -Supports both **JSON-format** and **HEX-format** downlink commands (corresponding to AT commands).
1046 +==== **1. HEX-format** ====
1047 1047  
1048 +Supports **HEX-format** downlink commands (corresponding to AT commands).
1049 +
1048 1048  //Example~:// For the S31-NB's uplink interval modification (AT+TDC=900):
1049 1049  
1050 1050  * HEX format: (% style="color:blue" %)**01000384**(%%)  ~/~/ There are no Spaces. 0x0384(H)=900(D), that is, modify TDC to 900 seconds.
1051 -* 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 {}.
1053 +* 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 {}.
1052 1052  
1053 1053  (% style="color:red" %)**Note:**
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1061 1061  [[image:1750035004731-376.png||height="276" width="557"]]
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1064 1064  **Template for Batch Configuration:**
1065 1065  
1066 1066  We can also use templates to configure multiple commands AT once. Users only need to modify the parameters of the required AT commands in the correct template for each device.
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1245 +== 6.8 ==
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