Last modified by Mengting Qiu on 2024/04/02 16:44
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From version < 112.1 >
edited by Xiaoling
on 2022/07/09 15:48
To version < 106.1 >
edited by Xiaoling
on 2022/07/09 15:35
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Change comment: Uploaded new attachment "1657352146020-183.png", version {1}

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211 211  
212 212  
213 213  
214 -=== 2.2.4  Connect USB – TTL to N95S31B to configure it ===
214 +=== 2.2.3 Connect USB – TTL to N95S31B to configure it ===
215 215  
216 216  (((
217 217  (((
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250 250  
251 251  
252 252  
253 -=== 2.2.5  Use CoAP protocol to uplink data ===
253 +=== 2.2.4 Use CoAP protocol to uplink data ===
254 254  
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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270 270  )))
271 271  
272 272  (((
273 -
274 -
275 275  For parameter description, please refer to AT command set
276 276  )))
277 277  
278 -[[image:1657352146020-183.png]]
276 +[[image:1657330452568-615.png]]
279 279  
280 280  
281 281  (((
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282 282  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.
283 283  )))
284 284  
285 -[[image:1657352185396-303.png]]
283 +[[image:1657330472797-498.png]]
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287 287  
288 288  
289 -=== 2.2.6  Use UDP protocol to uplink data(Default protocol) ===
287 +=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
290 290  
291 291  
292 292  * (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink
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293 293  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
294 294  * (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/ If the server does not respond, this command is unnecessary
295 295  
296 -[[image:1657352391268-297.png]]
294 +[[image:1657330501006-241.png]]
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298 298  
299 -[[image:1657352403317-397.png]]
297 +[[image:1657330533775-472.png]]
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301 301  
302 302  
303 -=== 2.2.7  Use MQTT protocol to uplink data ===
301 +=== 2.2.6 Use MQTT protocol to uplink data ===
304 304  
305 -N95S31B supports only plain MQTT now it doesn’t support TLS and other related encryption.
306 306  
307 307  * (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
308 308  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
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309 309  * (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
310 310  * (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/Set the username of MQTT
311 311  * (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/Set the password 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
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
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315 -[[image:1657352634421-276.png]]
312 +[[image:1657249978444-674.png]]
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317 317  
318 -[[image:1657352645687-385.png]]
315 +[[image:1657330723006-866.png]]
319 319  
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 -)))
323 323  
324 -
325 325  (((
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.
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.
327 327  )))
328 328  
329 329  
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