Changes for page General Manual for -CB , -CS models
Last modified by Mengting Qiu on 2025/03/08 11:35
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... ... @@ -848,7 +848,7 @@ 848 848 849 849 [[image:image-20240820113015-60.png]] 850 850 851 -== (% data-sider-select-id="765eceff-93b1-40ee-800b-b7b7d022ef8a" %)6.3 What is the Downlink Command by the NB device?(%%) ==851 +== (% data-sider-select-id="765eceff-93b1-40ee-800b-b7b7d022ef8a" %)6.3 What is the Downlink Command by the -CB device?(%%) == 852 852 853 853 (% data-sider-select-id="bb6e9353-0c3f-473c-938d-4b416c9a03e6" %) 854 854 === UDP: === ... ... @@ -900,5 +900,92 @@ 900 900 901 901 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]] 902 902 903 + 904 +== 6.4 What if the signal is good but the domain name resolution fails? == 905 + 906 + 907 +If the domain name resolution fails, first check whether the domain name is correct, users can use their own website domain name resolution tool to verify the domain name. 908 + 909 +[[image:image-20240827150705-6.png||height="489" width="687"]] 910 + 911 +If the domain name is correct, but the domain name cannot be resolved, the user can turn off the domain name resolution function(AT+GDNS=1) and use the domain name communication directly. 912 + 913 +* Set the DNS 914 + 915 +(% style="color:blue" %)**AT Command: AT+GDNS** 916 + 917 +**AT+GDNS=0** ~/~/Default. Automatically resolves the domain name and uses the resolved IP to communicate. 918 + 919 +**AT+GDNS=1 **~/~/Disabling Domain name resolution. Use the domain name directly to communicate. 920 + 921 +(% style="color:red" %)**Note: For -CB products, with the exception of AT+PRO=2,5, all protocols and payload formats support direct domain communication.** 922 + 923 +Example: 924 + 925 +[[image:image-20240827150121-5.png||height="476" width="680"]][[image:image-20240827145055-4.png||height="484" width="678"]] 926 + 927 + 928 +== 6.5 GPS debugging == 929 + 930 + 931 +The following are three related AT commands that introduce GPS functions. 932 + 933 +* **Turn on/off GPS** 934 + 935 +(% style="color:blue" %)**AT Command: **(% style="color:#037691" %)**AT+GPS ** 936 + 937 +**Ex1: **AT+GPS=0 ~/~/ Turn off GPS 938 + 939 +**Ex2: **AT+GPS=1 ~/~/ Turn on GPS 940 + 941 +(% style="color:blue" %)**Downlink command:**(%%)** (% style="color:#037691" %)0x11(%%)** 942 + 943 +Format: Command Code (0x11) followed by 1 byte. 944 + 945 +Example: Downlink Payload: **11 01 **~/~/ AT+GPS=1 946 + 947 + 948 +* **Set GNSS open time** 949 + 950 +Extend the time to turn on GNSS. The automatic GPS location time is extended when the node is activated. 951 + 952 +(% style="color:blue" %)**AT Command: **(% style="color:#037691" %)**AT+GNSST** 953 + 954 +Example: AT+GNSST=30 ~/~/ Set the GPS positioning time to 30 seconds 955 + 956 +(% style="color:blue" %)**Downlink command:**(%%)** (% style="color:#037691" %)0x10(%%)** 957 + 958 +Format: Command Code (0x10) followed by 2 bytes. 959 + 960 +Example: Downlink Payload: **10 00 1E **~/~/ AT+GNSST=30 961 + 962 + 963 +* **Set GPS positioning interval** 964 + 965 +Feature: Set GPS positioning interval (unit: hour). 966 + 967 +When GPS is enabled, the node automatically locates and uplinks each time it passes **GTDC time** after activation. 968 + 969 +(% style="color:blue" %)**AT Command: **(% style="color:#037691" %)**AT+GTDC** 970 + 971 +Example: AT+GTDC=24 ~/~/ Set the GPS positioning interval to 24h. 972 + 973 +(% style="color:blue" %)**Downlink command:**(%%)** (% style="color:#037691" %)0x12(%%)** 974 + 975 +Format: Command Code (0x12) followed by 3 bytes. 976 + 977 +Example: 24 hours: 24(D)=0x18(H) 978 + 979 + Downlink Payload: **12 00 00 18 **~/~/ AT+GTDC=24 980 + 981 + 982 +Indoor GPS signal is very weak, outdoor positioning is generally recommended. 983 + 984 + 985 + 986 + 987 + 988 + 989 + 990 + 903 903 904 -
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