Last modified by Mengting Qiu on 2024/04/02 16:44
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From version < 104.2 >
edited by Xiaoling
on 2022/07/09 15:21
To version < 112.1 >
edited by Xiaoling
on 2022/07/09 15:48
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Change comment: Uploaded new attachment "1657352898400-901.png", version {1}

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211 211  
212 212  
213 213  
214 -=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
214 +=== 2.2.4  Connect USB – TTL to N95S31B to configure it ===
215 215  
216 216  (((
217 217  (((
218 -User need to configure NDDS75 via serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. NDDS75 support AT Commands, user can use a USB to TTL adapter to connect to NDDS75 and use AT Commands to configure it, as below.
218 +User need to configure N95S31B via serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. N95S31B support AT Commands, user can use a USB to TTL adapter to connect to N95S31B and use AT Commands to configure it, as below.
219 219  )))
220 220  )))
221 221  
222 -[[image:image-20220709092052-2.png]]
222 +[[image:1657351312545-300.png]]
223 223  
224 224  **Connection:**
225 225  
... ... @@ -239,18 +239,18 @@
239 239  * Flow Control: (% style="color:green" %)**None**
240 240  
241 241  (((
242 -Make sure the switch is in FLASH position, then power on device by connecting the jumper on NDDS75. NDDS75 will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
242 +Make sure the switch is in FLASH position, then power on device by connecting the jumper on N95S31B. N95S31B will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
243 243  )))
244 244  
245 245  [[image:1657329814315-101.png]]
246 246  
247 247  (((
248 -(% style="color:red" %)Note: the valid AT Commands can be found at: (%%)[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/]]
248 +(% style="color:red" %)Note: the valid AT Commands can be found at:  (%%)[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/]]
249 249  )))
250 250  
251 251  
252 252  
253 -=== 2.2.4 Use CoAP protocol to uplink data ===
253 +=== 2.2.5  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/]]
256 256  
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270 270  )))
271 271  
272 272  (((
273 +
274 +
273 273  For parameter description, please refer to AT command set
274 274  )))
275 275  
276 -[[image:1657330452568-615.png]]
278 +[[image:1657352146020-183.png]]
277 277  
278 278  
279 279  (((
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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  )))
282 282  
283 -[[image:1657330472797-498.png]]
285 +[[image:1657352185396-303.png]]
284 284  
285 285  
286 286  
287 -=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
289 +=== 2.2.6  Use UDP protocol to uplink data(Default protocol) ===
288 288  
289 289  
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
293 293  
294 -[[image:1657330501006-241.png]]
296 +[[image:1657352391268-297.png]]
295 295  
296 296  
297 -[[image:1657330533775-472.png]]
299 +[[image:1657352403317-397.png]]
298 298  
299 299  
300 300  
301 -=== 2.2.6 Use MQTT protocol to uplink data ===
303 +=== 2.2.7  Use MQTT protocol to uplink data ===
302 302  
305 +N95S31B supports only plain MQTT now it doesn’t support TLS and other related encryption.
303 303  
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
311 311  
312 -[[image:1657249978444-674.png]]
315 +[[image:1657352634421-276.png]]
313 313  
314 314  
315 -[[image:1657330723006-866.png]]
318 +[[image:1657352645687-385.png]]
316 316  
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 +)))
317 317  
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.
320 320  )))
321 321  
322 322  
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