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214		-=== 2.2.3 Connect USB – TTL to N95S31B to configure it ===
	214	+=== 2.2.4  Connect USB – TTL to N95S31B to configure it ===
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216	216	(((
217	217	(((
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253		-=== 2.2.4 Use CoAP protocol to uplink data ===
	253	+=== 2.2.5  Use CoAP protocol to uplink data ===
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255	255	(% style="color:red" %)Note: if you don't have CoAP server, you can refer this link to set up one: (%%)[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/>>http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
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273	273	For parameter description, please refer to AT command set
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276		-[[image:1657330452568-615.png]]
	278	+[[image:1657352146020-183.png]]
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280	280	After configure the server address and (% style="color:green" %)**reset the device**(%%) (via AT+ATZ ), NDDS75 will start to uplink sensor values to CoAP server.
281	281	)))
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283		-[[image:1657330472797-498.png]]
	285	+[[image:1657352185396-303.png]]
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287		-=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
	289	+=== 2.2.6  Use UDP protocol to uplink data(Default protocol) ===
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290	290	* (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink
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291	291	* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
292	292	* (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/ If the server does not respond, this command is unnecessary
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294		-[[image:1657330501006-241.png]]
	296	+[[image:1657352391268-297.png]]
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297		-[[image:1657330533775-472.png]]
	299	+[[image:1657352403317-397.png]]
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301		-=== 2.2.6 Use MQTT protocol to uplink data ===
	303	+=== 2.2.7  Use MQTT protocol to uplink data ===
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	305	+N95S31B supports only plain MQTT now it doesn’t support TLS and other related encryption.
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304	304	* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
305	305	* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
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306	306	* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
307	307	* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/Set the username of MQTT
308	308	* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/Set the password of MQTT
309		-* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/Set the sending topic of MQTT
310		-* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/Set the subscription topic of MQTT
	312	+* (% style="color:blue" %)**AT+PUBTOPIC=f9527  **(%%)~/~/Set the sending topic of MQTT
	313	+* (% style="color:blue" %)**AT+SUBTOPIC=Ns9527  **(%%) ~/~/Set the subscription topic of MQTT
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312		-[[image:1657249978444-674.png]]
	315	+[[image:1657352634421-276.png]]
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315		-[[image:1657330723006-866.png]]
	318	+[[image:1657352645687-385.png]]
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	320	+(((
	321	+To save battery life, N95S31B will establish a subscription before each uplink and close the subscription 3 seconds after uplink successful. Any downlink commands from server will only arrive during the subscription period.
	322	+)))
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	324	+
318	318	(((
319		-MQTT protocol has a much higher power consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.
	326	+MQTT protocol has a much high-power consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.
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