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201	201
202	202	* (% style="color:#037691" %)**AT+PRO=2,0**  (%%) ~/~/ Set to use UDP protocol to uplink ,Payload Type select Hex payload
203	203
204		-* (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5601**  (%%) ~/~/ Set UDP server address and port
	204	+* (% style="color:#037691" %)**AT+SERVADDR=8.217.91.207,1999**  (%%) ~/~/ Set UDP server address and port
205	205
206	206	[[image:image-20240819102802-1.png]]
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698	698
699	699	Users can refer to [[Dragino NB device connection to AWS platform instructions>>http://wiki.dragino.com/xwiki/bin/view/Dragino%20NB%20device%20connection%20to%20AWS%20platform%20instructions/#H1.LogintotheplatformandfindIoTcore]]
700	700
701		-(% class="wikigeneratedid" %)
702	702	= =
703	703
704	704	= 4. COAP/UDP/MQTT/TCP downlink =
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746	746
747	747	== 4.2 UDP (via Thingseye) ==
748	748
749		-(% style="color:red" %)**Note:**(%%) The UDP service on the ThingsEye platform needs to be built by the user.
	748	+(% style="color:red" %)**Note:**(%%) The UDP service on the ThingsEye platform needs to be built by the user. (Description Link:[[UDP service building instructions>>http://www.ithingsboard.com/docs/user-guide/integrations/udp/]])
750	750
	750	+After the node is successfully connected to the platform, you need to select the corresponding node (you can refer to the node's IMEI to find it)
751	751
	752	+[[image:image-20240820141843-2.png||height="546" width="821"]]
	753	+
	754	+After clicking Show Node Details Page, (% style="color:blue" %)**Select Properties ~-~-- select Shared Properties ~-~-- click Add Properties**
	755	+
	756	+[[image:image-20240820143316-3.png||height="555" width="1170"]]
	757	+
	758	+After clicking Add Shared Attribute, set the key to (% style="color:red" %)**value**(%%), and write the command that needs to be downlinked in the Downlink Command Input box
	759	+
	760	+(% style="color:red" %)**(Note: Downlinks can only be downlinked in string format, otherwise the node will not recognize the downlink command.)**
	761	+
	762	+[[image:image-20240820143820-4.png||height="554" width="1168"]]
	763	+
	764	+After the command is successfully added, the platform will send the command down on the node's next uplink.
	765	+
	766	+[[image:image-20240820144913-6.png||height="585" width="1232"]]
	767	+
	768	+[[image:image-20240820145133-7.png||height="582" width="1227"]]
	769	+
	770	+Upon successful issuance, the platform automatically eliminates the attributes from the queue and waits for the next addition of new attributes
	771	+
	772	+[[image:image-20240820145309-8.png]]
	773	+
	774	+
752	752	= 5. GPS positioning function =
753	753
754	754	=== 1. Turn on GPS function ===
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825	825
826	826	[[image:image-20240820113015-60.png]]
827	827
828		-== (% 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?(%%) ==
829	829
830	830	(% data-sider-select-id="bb6e9353-0c3f-473c-938d-4b416c9a03e6" %)
831	831	=== UDP: ===
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879	879
880	880
881	881	​
	905	+
	906	+== 6.4 What if the signal is good but the domain name resolution fails? ==
	907	+
	908	+
	909	+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.
	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	+
	926	+
	927	+
	928	+
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	930	+
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