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Last modified by Mengting Qiu on 2024/04/02 16:44
From version 102.3
edited by Xiaoling
on 2022/07/09 15:09
Change comment: There is no comment for this version
To version 129.35
edited by Xiaoling
on 2023/04/03 16:57
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -9,6 +9,7 @@
9 9  
10 10  **Table of Contents:**
11 11  
12 +{{toc/}}
12 12  
13 13  
14 14  
... ... @@ -21,16 +21,29 @@
21 21  (((
22 22  
23 23  
25 +(((
24 24  The Dragino N95S31B is a (% style="color:blue" %)**NB-IoT Temperature and Humidity Sensor**(%%) for Internet of Things solution. It is used to measure the (% style="color:blue" %)**surrounding environment temperature and relative air humidity precisely**(%%), and then upload to IoT server via NB-IoT network*.
27 +)))
25 25  
29 +(((
26 26  The temperature & humidity sensor used in N95S31B is SHT31, which is fully calibrated, linearized, and temperature compensated digital output from Sensirion, it provides a strong reliability and long-term stability. The SHT31 is fixed in a (% style="color:blue" %)**waterproof anti-condensation casing **(%%)for long term use.
31 +)))
27 27  
33 +(((
28 28  N95S31B supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP**(%%) for different application requirement.
35 +)))
29 29  
37 +(((
30 30  N95S31B is powered by(% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), It is designed for long term use up to several years. (Real-world battery life depends on the use environment, update period. Please check related Power Analyze report).
39 +)))
31 31  
41 +(((
42 +
43 +)))
32 32  
45 +(((
33 33  ~* make sure you have NB-IoT coverage locally.
47 +)))
34 34  
35 35  
36 36  )))
... ... @@ -54,7 +54,6 @@
54 54  * 8500mAh Battery for long term use
55 55  
56 56  
57 -
58 58  == 1.3  Specification ==
59 59  
60 60  
... ... @@ -74,7 +74,6 @@
74 74  
75 75  (% style="color:#037691" %)**Battery:**
76 76  
77 -
78 78  * Li/SOCI2 un-chargeable battery
79 79  * Capacity: 8500mAh
80 80  * Self Discharge: <1% / Year @ 25°C
... ... @@ -82,9 +82,9 @@
82 82  * Max boost current: 2A, 1 second
83 83  
84 84  
85 -
86 86  == ​1.4  Applications ==
87 87  
99 +
88 88  * Smart Buildings & Home Automation
89 89  * Logistics and Supply Chain Management
90 90  * Smart Metering
... ... @@ -96,43 +96,49 @@
96 96  ​
97 97  
98 98  
99 -== 1.5  Pin Definitions ==
111 +== 1.5  Pin Definitions & Switch ==
100 100  
113 +
101 101  N95S31B use the mother board from NBSN95 which as below.
102 102  
116 +
103 103  [[image:image-20220709144723-1.png]]
104 104  
105 105  
106 106  === 1.5.1 Jumper JP2 ===
107 107  
122 +
108 108  Power on Device when put this jumper.
109 109  
110 110  
111 -
112 112  === 1.5.2 BOOT MODE / SW1 ===
113 113  
114 -1) ISP: upgrade mode, device won't have any signal in this mode. but ready for upgrade firmware. LED won't work. Firmware won't run.
115 115  
116 -2) Flash: work mode, device starts to work and send out console output for further debug
129 +(((
130 +**1) ISP: ** upgrade mode, device won't have any signal in this mode. but ready for upgrade firmware. LED won't work. Firmware won't run.
131 +)))
117 117  
133 +(((
134 +**2) Flash:**  work mode, device starts to work and send out console output for further debug
135 +)))
118 118  
119 119  
120 120  === 1.5.3 Reset Button ===
121 121  
140 +
122 122  Press to reboot the device.
123 123  
124 124  
125 -
126 126  === 1.5.4 LED ===
127 127  
146 +
128 128  It will flash:
129 129  
130 -1. When boot the device in flash mode
131 -1. Send an uplink packet
149 +1.  When boot the device in flash mode
132 132  
151 +2.  Send an uplink packet
133 133  
134 134  
135 -
136 136  = 2.  Use N95S31B to communicate with IoT Server =
137 137  
138 138  == 2.1  How it works ==
... ... @@ -151,7 +151,7 @@
151 151  
152 152  )))
153 153  
154 -[[image:1657350248151-650.png]]
172 +[[image:1657520100595-569.png]]
155 155  
156 156  (((
157 157  
... ... @@ -160,7 +160,6 @@
160 160  
161 161  == 2.2 ​ Configure the N95S31B ==
162 162  
163 -
164 164  === 2.2.1  Power On N95S31B ===
165 165  
166 166  
... ... @@ -167,42 +167,58 @@
167 167  [[image:image-20220709150546-2.png]]
168 168  
169 169  
170 -=== 2.2.1 Test Requirement ===
187 +=== 2.2.2 Test Requirement ===
171 171  
172 172  
190 +(((
173 173  To use N95S31B in your city, make sure meet below requirements:
192 +)))
174 174  
175 -* Your local operator has already distributed a NB-IoT Network there.
176 -* The local NB-IoT network used the band that N95S31B supports.
177 -* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
194 +* (((
195 +Your local operator has already distributed a NB-IoT Network there.
196 +)))
197 +* (((
198 +The local NB-IoT network used the band that N95S31B supports.
199 +)))
200 +* (((
201 +Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
202 +)))
178 178  
179 -
204 +(((
180 180  Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.
206 +)))
181 181  
208 +(((
182 182  N95S31B supports different communication protocol such as :
210 +)))
183 183  
184 184  (((
185 -* CoAP  ((% style="color:red" %)120.24.4.116:5683(%%))
186 -* raw UDP  ((% style="color:red" %)120.24.4.116:5601(%%))
187 -* MQTT  ((% style="color:red" %)120.24.4.116:1883(%%))
188 -* TCP  ((% style="color:red" %)120.24.4.116:5600(%%))
213 +* (((
214 +CoAP  ((% style="color:red" %)120.24.4.116:5683(%%))
215 +)))
216 +* (((
217 +raw UDP  ((% style="color:red" %)120.24.4.116:5601(%%))
218 +)))
219 +* (((
220 +MQTT  ((% style="color:red" %)120.24.4.116:1883(%%))
221 +)))
222 +* (((
223 +TCP  ((% style="color:red" %)120.24.4.116:5600(%%))
224 +)))
189 189  
226 +(((
190 190  We will show how to use with each protocol. The IP addresses above are our test server. User need to change to point their corresponding server.
228 +)))
191 191  
192 192  
193 193  )))
194 194  
195 -(((
196 -Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NDDS75 will use CoAP((% style="color:red" %)120.24.4.116:5683)(%%) or raw UDP((% style="color:red" %)120.24.4.116:5601)(%%) or MQTT((% style="color:red" %)120.24.4.116:1883)(%%)or TCP((% style="color:red" %)120.24.4.116:5600)(%%)protocol to send data to the test server
197 -)))
233 +[[image:1657350625843-586.png]]
198 198  
199 199  
200 -[[image:1657328756309-230.png]]
236 +=== 2.2.3  Insert SIM card ===
201 201  
202 202  
203 -
204 -=== 2.2.2 Insert SIM card ===
205 -
206 206  (((
207 207  Insert the NB-IoT Card get from your provider.
208 208  )))
... ... @@ -212,29 +212,32 @@
212 212  )))
213 213  
214 214  
215 -[[image:1657328884227-504.png]]
248 +[[image:1657351240556-536.png]]
216 216  
217 217  
251 +=== 2.2.4  Connect USB – TTL to N95S31B to configure it ===
218 218  
219 -=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
220 220  
221 221  (((
222 222  (((
223 -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.
256 +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.
257 +
258 +
224 224  )))
225 225  )))
226 226  
227 -[[image:image-20220709092052-2.png]]
262 +[[image:1657351312545-300.png]]
228 228  
229 -**Connection:**
230 230  
231 - (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
265 +(% style="color:blue" %)**Connection:**
232 232  
233 - (% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD
267 + (% style="background-color:yellow" %)**USB TTL GND <~-~-~-~-> GND**
234 234  
235 - (% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD
269 +**~ (% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD(%%)**
236 236  
271 +**~ (% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD(%%)**
237 237  
273 +
238 238  In the PC, use below serial tool settings:
239 239  
240 240  * Baud:  (% style="color:green" %)**9600**
... ... @@ -244,20 +244,21 @@
244 244  * Flow Control: (% style="color:green" %)**None**
245 245  
246 246  (((
247 -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.
283 +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.
248 248  )))
249 249  
250 250  [[image:1657329814315-101.png]]
251 251  
288 +
252 252  (((
253 -(% 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/]]
290 +(% style="color:red" %)**Note: the valid AT Commands can be found at:  **(%%)**[[https:~~/~~/www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i~~-~~-AyZcQkoua?dl=0>>https://www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i--AyZcQkoua?dl=0]]**
254 254  )))
255 255  
256 256  
294 +=== 2.2.5  Use CoAP protocol to uplink data ===
257 257  
258 -=== 2.2.4 Use CoAP protocol to uplink data ===
259 259  
260 -(% 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/]]
297 +(% 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/]]**
261 261  
262 262  
263 263  (((
... ... @@ -268,17 +268,19 @@
268 268  (% style="color:blue" %)**AT+PRO=1**  (%%) ~/~/ Set to use CoAP protocol to uplink
269 269  )))
270 270  * (((
271 -(% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/ to set CoAP server address and port
308 +(% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/ to set CoAP server address and port
272 272  )))
273 273  * (((
274 -(% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
311 +(% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/  Set COAP resource path
275 275  )))
276 276  
277 277  (((
315 +
316 +
278 278  For parameter description, please refer to AT command set
279 279  )))
280 280  
281 -[[image:1657330452568-615.png]]
320 +[[image:1657352146020-183.png]]
282 282  
283 283  
284 284  (((
... ... @@ -285,61 +285,67 @@
285 285  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.
286 286  )))
287 287  
288 -[[image:1657330472797-498.png]]
327 +[[image:1657352185396-303.png]]
289 289  
290 290  
330 +=== 2.2.6  Use UDP protocol to uplink data(Default protocol) ===
291 291  
292 -=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
293 293  
294 -
295 295  * (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink
296 296  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
297 297  * (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/ If the server does not respond, this command is unnecessary
298 298  
299 -[[image:1657330501006-241.png]]
337 +[[image:1657352391268-297.png]]
300 300  
301 301  
302 -[[image:1657330533775-472.png]]
340 +[[image:1657352403317-397.png]]
303 303  
304 304  
343 +=== 2.2.7  Use MQTT protocol to uplink data ===
305 305  
306 -=== 2.2.6 Use MQTT protocol to uplink data ===
307 307  
346 +N95S31B supports only plain MQTT now it doesn't support TLS and other related encryption.
308 308  
309 -* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
310 -* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
311 -* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
312 -* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/Set the username of MQTT
313 -* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/Set the password of MQTT
314 -* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/Set the sending topic of MQTT
315 -* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/Set the subscription topic of MQTT
348 +* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/  Set to use MQTT protocol to uplink
349 +* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/  Set MQTT server address and port
350 +* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/  Set up the CLIENT of MQTT
351 +* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/  Set the username of MQTT
352 +* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/  Set the password of MQTT
353 +* (% style="color:blue" %)**AT+PUBTOPIC=f9527                               **(%%)~/~/  Set the sending topic of MQTT
354 +* (% style="color:blue" %)**AT+SUBTOPIC=Ns9527          **(%%) ~/~/  Set the subscription topic of MQTT
316 316  
317 -[[image:1657249978444-674.png]]
356 +[[image:1657352634421-276.png]]
318 318  
319 319  
320 -[[image:1657330723006-866.png]]
359 +[[image:1657352645687-385.png]]
321 321  
322 322  
323 323  (((
324 -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.
363 +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.
325 325  )))
326 326  
327 327  
367 +(((
368 +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.
369 +)))
328 328  
329 -=== 2.2.7 Use TCP protocol to uplink data ===
330 330  
372 +=== 2.2.8  Use TCP protocol to uplink data ===
331 331  
374 +
375 +This feature is supported since firmware version v110
376 +
332 332  * (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/ Set to use TCP protocol to uplink
333 333  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/ to set TCP server address and port
334 334  
335 -[[image:image-20220709093918-1.png]]
380 +[[image:1657352898400-901.png]]
336 336  
337 337  
338 -[[image:image-20220709093918-2.png]]
383 +[[image:1657352914475-252.png]]
339 339  
340 340  
386 +=== 2.2.9  Change Update Interval ===
341 341  
342 -=== 2.2.8 Change Update Interval ===
343 343  
344 344  User can use below command to change the (% style="color:green" %)**uplink interval**.
345 345  
... ... @@ -346,164 +346,244 @@
346 346  * (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
347 347  
348 348  (((
349 -(% style="color:red" %)**NOTE:**
394 +
350 350  )))
351 351  
352 352  (((
353 -(% style="color:red" %)1. By default, the device will send an uplink message every 1 hour.
398 +(% style="color:red" %)**NOTE: Since firmware version is v1.2:**
354 354  )))
355 355  
401 +(((
402 +(% style="color:red" %)**By default, the device will send an uplink message every 2 hours. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).**
403 +)))
356 356  
357 357  
358 358  == 2.3  Uplink Payload ==
359 359  
360 -In this mode, uplink payload includes in total 14 bytes
361 361  
409 +(((
410 +N95S31B has different working modes for the connections of different types of sensors. This section describes these modes. User can use the AT Command (% style="color:blue" %)**AT+MOD**(%%) to set NBSN95 to different working modes.
411 +)))
362 362  
363 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %)
364 -|=(% style="width: 60px;" %)(((
365 -**Size(bytes)**
366 -)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 100px;" %)**2**|=(% style="width: 60px;" %)**1**
367 -|(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:41px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:120px" %)[[Distance (unit: mm)>>||anchor="H2.4.5A0Distance"]]|(% style="width:80px" %)[[Interrupt>>||anchor="H2.4.6A0DigitalInterrupt"]]
368 368  
369 369  (((
370 -If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS751 uplink data.
415 +For example:
371 371  )))
372 372  
418 +(((
419 + (% style="color:blue" %)**AT+CFGMOD=2 ** (%%)~/~/will set the N95S31B to work in MOD=2 distance mode which target to measure distance via Ultrasonic Sensor.
420 +)))
373 373  
374 -[[image:1657331036973-987.png]]
375 375  
376 376  (((
377 -The payload is ASCII string, representative same HEX:
424 +The uplink payloads are composed in  ASCII String. For example:
378 378  )))
379 379  
380 380  (((
381 -0x72403155615900640c6c19029200 where:
428 +0a cd 00 ed 0a cc 00 00 ef 02 d2 1d (total 24 ASCII Chars) . Representative the actually payload:
382 382  )))
383 383  
384 -* (((
385 -Device ID: 0x724031556159 = 724031556159
431 +(((
432 +0x 0a cd 00 ed 0a cc 00 00 ef 02 d2 1d Total 12 bytes
386 386  )))
387 -* (((
388 -Version: 0x0064=100=1.0.0
434 +
435 +
436 +(((
437 +(% style="color:red" %)**NOTE:**
389 389  )))
390 390  
391 -* (((
392 -BAT: 0x0c6c = 3180 mV = 3.180V
440 +(% style="color:red" %)
441 +1. (((
442 +**All modes share the same Payload Explanation from [[HERE>>||anchor="H2.3A0UplinkPayload"]].**
393 393  )))
394 -* (((
395 -Signal: 0x19 = 25
396 -)))
397 -* (((
398 -Distance: 0x0292= 658 mm
399 -)))
400 -* (((
401 -Interrupt: 0x00 = 0
444 +1. (((
445 +**By default, the device will send an uplink message every 1 hour.**
402 402  
403 403  
404 -
405 405  
406 406  )))
407 407  
408 -== 2.4  Payload Explanation and Sensor Interface ==
451 +=== 2.3.1  Payload Analyze ===
409 409  
453 +==== 2.3.1.1  Before Firmware v1.2 ====
410 410  
411 -=== 2.4.1  Device ID ===
412 412  
456 +N95S31B uplink payload includes in total 21 bytes
457 +
458 +
459 +(% border="1" style="background-color:#ffffcc; color:green; width:520px" %)
460 +|=(% style="width: 50px;" %)**Size(bytes)**|=(% style="width: 45px;" %)**6**|=(% style="width: 25px;" %)2|=(% style="width: 25px;" %)**2**|=(% style="width: 65px;" %)**1**|=(% style="width: 50px;" %)1|=(% style="width: 120px;" %)5|=(% style="width: 70px;" %)**2**|=(% style="width: 70px;" %)**2**
461 +|(% style="width:97px" %)**Value**|(% style="width:65px" %)[[Device ID>>||anchor="H2.3.2A0DeviceID"]]|(% style="width:50px" %)[[Ver>>||anchor="H2.3.3A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.3.4A0BatteryInfo"]]|(% style="width:75px" %)[[Signal Strength>>||anchor="H2.3.5A0SignalStrength"]]|(% style="width:59px" %)MOD 0X01|(% style="width:162px" %)(((
413 413  (((
414 -By default, the Device ID equal to the last 6 bytes of IMEI.
463 +Reserve/ Same as NBSN95 CFGMOD=1
415 415  )))
416 416  
417 417  (((
418 -User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
467 +No function here.
419 419  )))
469 +)))|(% style="width:102px" %)(((
470 +(((
471 +[[Temperature >>||anchor="H2.3.6A0Temperature26Humidity"]]
472 +)))
420 420  
421 421  (((
422 -**Example:**
475 +By SHT31
423 423  )))
477 +)))|(% style="width:81px" %)(((
478 +(((
479 +[[Humidity>>||anchor="H2.3.6A0Temperature26Humidity"]]
480 +)))
424 424  
425 425  (((
426 -AT+DEUI=A84041F15612
483 +By SHT31
427 427  )))
485 +)))
428 428  
429 429  (((
430 -The Device ID is stored in a none-erase area, Upgrade the firmware or run **AT+FDR** won't erase Device ID.
488 +
489 +
490 +(((
491 +If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NB sensor uplink data.
431 431  )))
493 +)))
432 432  
433 433  
496 +[[image:1657354294009-643.png]]
434 434  
435 -=== 2.4.2  Version Info ===
436 436  
437 -(((
438 -Specify the software version: 0x64=100, means firmware version 1.00.
439 -)))
499 +The payload is ASCII string, representative same HEX: (% style="background-color:yellow" %)**0x724031607457 006e 0ccd 1b 01 00dc000ccc 00e1 0186**
440 440  
441 -(((
442 -For example: 0x00 64 : this device is NDDS75 with firmware version 1.0.0.
443 -)))
501 +**where:**
444 444  
503 +* (% style="color:#037691" %)**Device ID:** (%%) 0x724031607457 = 724031607457
445 445  
505 +* (% style="color:#037691" %)**Version: **(%%) 0x006e=110=1.1.0
446 446  
447 -=== 2.4.3  Battery Info ===
507 +* (% style="color:#037691" %)**BAT:**   (%%) 0x0ccd = 3277 mV = 3.277V
448 448  
449 -(((
450 -Ex1: 0x0B45 = 2885mV
451 -)))
509 +* (% style="color:#037691" %)**Signal:** (%%) 0x1b = 27
452 452  
453 -(((
454 -Ex2: 0x0B49 = 2889mV
455 -)))
511 +* (% style="color:#037691" %)**Model:** (%%) 0x01 = 1
456 456  
513 +* (% style="color:#037691" %)**0x00dc000ccc= reserve, ignore in N95S31B**
457 457  
515 +* (% style="color:#037691" %)**Temperature by SHT31:** (%%) 0x00e1 = 225 = 22.5 °C
458 458  
459 -=== 2.4.4  Signal Strength ===
517 +* (% style="color:#037691" %)**Humidity by SHT31:**  (%%) 0x0186 = 390 = 39.0 %rh
460 460  
461 461  (((
462 -NB-IoT Network signal Strength.
463 -)))
520 +
464 464  
465 -(((
466 -**Ex1: 0x1d = 29**
522 +
523 +
467 467  )))
468 468  
526 +==== 2.3.1.2 Since Firmware v1.2 ====
527 +
528 +
529 +In this mode, uplink payload includes 91 bytes in total by default.
530 +
531 +Each time the device uploads a data package, 8 sets of recorded data will be attached. Up to 32 sets of recorded data can be uploaded.
532 +
533 +
534 +(% border="1" style="background-color:#ffffcc; color:green; width:520px" %)
535 +|=(% scope="row" style="width: 50px;" %)**Size(bytes)**|(% style="width:40px" %)**8**|(% style="width:20px" %)**2**|(% style="width:20px" %)**2**|(% style="width:30px" %)**1**|(% style="width:20px" %)**1**|(% style="width:55px" %)**2**|(% style="width:35px" %)**1**|(% style="width:20px" %)**2**|(% style="width:40px" %)**2**|(% style="width:40px" %)**2**|(% style="width:30px" %)**4**|(% style="width:40px" %)**2**|(% style="width:40px" %)**2**|(% style="width:35px" %)**4**
536 +|=(% style="width: 95px;" %)**Value**|(% style="width:82px" %)Device ID|(% style="width:43px" %)Ver|(% style="width:47px" %)BAT|(% style="width:124px" %)Signal Strength|(% style="width:56px" %)MOD|(% style="width:109px" %)TemDS18B20|(% style="width:80px" %)Interrupt|(% style="width:51px" %)ADC|(% style="width:79px" %)SHTTEM|(% style="width:84px" %)SHTHUM|(% style="width:100px" %)Time stamp |(% style="width:76px" %)SHTTEM|(% style="width:81px" %)SHTHUM|(% style="width:121px" %)Time stamp .....
537 +
538 +If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the N95S31B uplink data.
539 +
540 +
541 +[[image:image-20220908154949-1.png]]
542 +
543 +
544 +The payload is ASCII string, representative same HEX:
545 +
546 +**0x (% style="color:red" %)__f868411056758782__ (% style="color:blue" %)__000c__ (% style="color:green" %)__0d0f__ (% style="color:#00b0f0" %)__0c__ (% style="color:#7030a0" %)__01__ (% style="color:#d60093" %)__0000__ (% style="color:#a14d07" %)__00__ __0030__ (% style="color:#0020b0" %)__0114__ (% style="color:#420042" %)__0231__ (% style="color:#663300" %)__63199d3c__ (%%)__0113023163199d12__ __0113023163199c5e__// //__0112023763199baa__ __0112023263199af6__// //__0111023b631999a7__ **
547 +
548 +**__0112023b631998f3__// //__011202426319983f__ __01110242631996eb__**
549 +
550 +**where:**
551 +
552 +* (% style="color:#037691" %)**Device ID:**(%%) f868411056758782 = f868411056758782
553 +
554 +* (% style="color:#037691" %)**Version:** (%%)0x000c=120=1.2
555 +
556 +* (% style="color:#037691" %)**BAT:**      (%%)0x0d0f = 3343 mV = 3.343V
557 +
558 +* (% style="color:#037691" %)**Singal:**(%%)  0x0c = 12
559 +
560 +* (% style="color:#037691" %)**Mod:**(%%)  0x01 = 1
561 +
562 +* (% style="color:#037691" %)**TemDS18B20:**(%%)  0x0000= 0 = 0
563 +
564 +* (% style="color:#037691" %)**Interrupt:**  (%%)0x00= 0
565 +
566 +* (% style="color:#037691" %)**adc:**(%%)  0x0030= 48
567 +
568 +* (% style="color:#037691" %)**SHTTEM:**(%%)  0x0114= 276 = 27.6
569 +
570 +* (% style="color:#037691" %)**SHTHUM:**(%%)  0x0231 =561=56.1%
571 +
572 +* (% style="color:#037691" %)**Time stamp :  **(%%)0x63199d3c =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
573 +
574 +* (% style="color:#037691" %)**SHTTEM,SHTHUM,Time stamp :**(%%)  0113023163199d12
575 +
576 +* (% style="color:#037691" %)**8 sets of recorded data:**(%%)** **SHTTEM,SHTHUM,Time stamp : 0113023163199c5e, .......
577 +
578 +
579 +=== 2.3.2  Device ID ===
580 +
581 +
469 469  (((
470 -(% style="color:blue" %)**0**(%%)  -113dBm or less
583 +By default, the Device ID equal to the last 6 bytes of IMEI.
471 471  )))
472 472  
473 473  (((
474 -(% style="color:blue" %)**1**(%%)  -111dBm
587 +User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
588 +
589 +
475 475  )))
476 476  
477 477  (((
478 -(% style="color:blue" %)**2...30**(%%) -109dBm... -53dBm
593 +(% style="color:blue" %)**Example:**
479 479  )))
480 480  
481 481  (((
482 -(% style="color:blue" %)**31**  (%%) -51dBm or greater
597 +AT+DEUI=A84041F15612
483 483  )))
484 484  
485 485  (((
486 -(% style="color:blue" %)**99**   (%%) Not known or not detectable
601 +The Device ID is stored in a none-erase area, Upgrade the firmware or run (% style="color:blue" %)**AT+FDR**(%%) won't erase Device ID.
602 +
603 +
487 487  )))
488 488  
606 +(% style="color:red" %)**NOTE: When the firmware version is v1.2 and later firmware:**
489 489  
490 490  
491 -=== 2.4.5  Distance ===
609 +By default, the Device ID equal to the last 15 bits of IMEI.
492 492  
493 -Get the distance. Flat object range 280mm - 7500mm.
611 +User can use ** (% style="color:blue" %)AT+DEUI(%%)** to set Device ID
494 494  
613 +
614 +(% style="color:blue" %)**Example:**
615 +
616 +AT+DEUI=868411056754138
617 +
618 +
619 +=== 2.3.3  Version Info ===
620 +
621 +
495 495  (((
496 -For example, if the data you get from the register is **__0x0B 0x05__**, the distance between the sensor and the measured object is
623 +These bytes include the hardware and software version.
497 497  )))
498 498  
499 499  (((
500 -(((
501 -(% style="color:blue" %)** 0B05(H) = 2821(D) = 2821mm.**
627 +Higher byte: Specify hardware version: always 0x00 for N95S31B
502 502  )))
503 -)))
504 504  
505 505  (((
506 -
631 +Lower byte: Specify the software version: 0x6E=110, means firmware version 110
507 507  )))
508 508  
509 509  (((
... ... @@ -510,65 +510,81 @@
510 510  
511 511  )))
512 512  
513 -=== 2.4.6  Digital Interrupt ===
514 -
515 515  (((
516 -Digital Interrupt refers to pin (% style="color:blue" %)**GPIO_EXTI**(%%), and there are different trigger methods. When there is a trigger, the NDDS75 will send a packet to the server.
639 +For example: 0x00 6E: this device is N95S31B with firmware version 110.
517 517  )))
518 518  
519 519  (((
520 -The command is:
643 +
521 521  )))
522 522  
646 +=== 2.3.4  Battery Info ===
647 +
648 +
523 523  (((
524 -(% style="color:blue" %)**AT+INTMOD=3 **(%%) ~/~/(more info about INMOD please refer [[**AT Command Manual**>>url:https://www.dragino.com/downloads/downloads/NB-IoT/NBSN95/DRAGINO_NBSN95-NB_AT%20Commands_v1.1.0.pdf]])**.**
650 +Ex1: 0x0B45 = 2885mV
525 525  )))
526 526  
527 -
528 528  (((
529 -The lower four bits of this data field shows if this packet is generated by interrupt or not. Click here for the hardware and software set up.
654 +Ex2: 0x0B49 = 2889mV
530 530  )))
531 531  
532 532  
658 +=== 2.3.5  Signal Strength ===
659 +
660 +
533 533  (((
534 -Example:
662 +NB-IoT Network signal Strength.
535 535  )))
536 536  
537 537  (((
538 -0x(00): Normal uplink packet.
666 +**Ex1: 0x1d = 29**
539 539  )))
540 540  
541 541  (((
542 -0x(01): Interrupt Uplink Packet.
670 +(% style="color:blue" %)**0**(%%)  -113dBm or less
543 543  )))
544 544  
545 -
546 -
547 -=== 2.4.7  ​+5V Output ===
548 -
549 549  (((
550 -NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling. 
674 +(% style="color:blue" %)**1**(%%)  -111dBm
551 551  )))
552 552  
553 -
554 554  (((
555 -The 5V output time can be controlled by AT Command.
678 +(% style="color:blue" %)**2...30**(%%) -109dBm... -53dBm
556 556  )))
557 557  
558 558  (((
559 -(% style="color:blue" %)**AT+5VT=1000**
682 +(% style="color:blue" %)**31**  (%%) -51dBm or greater
560 560  )))
561 561  
562 562  (((
563 -Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
686 +(% style="color:blue" %)**99**   (%%) Not known or not detectable
564 564  )))
565 565  
566 566  
690 +=== 2.3.6  Temperature & Humidity ===
567 567  
568 -== 2.5  Downlink Payload ==
569 569  
570 -By default, NDDS75 prints the downlink payload to console port.
693 +The device will be able to get the SHT31 temperature and humidity data now and upload to IoT Server.
571 571  
695 +[[image:image-20220709161741-3.png]]
696 +
697 +
698 +Convert the read byte to decimal and divide it by ten.
699 +
700 +
701 +**Example:**
702 +
703 +Temperature:  Read:00ec (H) = 236(D)  Value:  236 /10=23.6℃
704 +
705 +Humidity:    Read:0295(H)=661(D)    Value:  661 / 10=66.1, So 66.1%
706 +
707 +
708 +== 2.4  Downlink Payload ==
709 +
710 +
711 +By default, N95S31B prints the downlink payload to console port.
712 +
572 572  [[image:image-20220709100028-1.png]]
573 573  
574 574  
... ... @@ -605,7 +605,7 @@
605 605  )))
606 606  
607 607  (((
608 -If payload = 0x04FF, it will reset the NDDS75
749 +If payload = 0x04FF, it will reset the N95S31B
609 609  )))
610 610  
611 611  
... ... @@ -616,144 +616,99 @@
616 616  )))
617 617  
618 618  
760 +== 2.5  Humidity and Temperature alarm function ==
619 619  
620 -== 2.6  ​LED Indicator ==
621 621  
763 +**~ (% style="color:blue" %)➢ AT Command:(%%)**
622 622  
623 -The NDDS75 has an internal LED which is to show the status of different state.
624 624  
766 +(% style="color:#037691" %)**AT+ SHHUM=min,max**
625 625  
626 -* When power on, NDDS75 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe)
627 -* Then the LED will be on for 1 second means device is boot normally.
628 -* After NDDS75 join NB-IoT network. The LED will be ON for 3 seconds.
629 -* For each uplink probe, LED will be on for 500ms.
630 630  
631 -(((
632 -
633 -)))
769 +² When min=0, and max≠0, Alarm higher than max
634 634  
771 +² When min≠0, and max=0, Alarm lower than min
635 635  
773 +² When min≠0 and max≠0, Alarm higher than max or lower than min
636 636  
637 -== 2.7  ​Firmware Change Log ==
638 638  
776 + (% style="color:blue" %)**Example:**
639 639  
640 -(((
641 -Download URL & Firmware Change log
642 -)))
778 +AT+ SHHUM=50,80 ~/~/ Alarm when humidity lower than 50.
643 643  
644 -(((
645 -[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/]]
646 -)))
647 647  
781 +(% style="color:#037691" %)**AT+ SHTEMP=min,max**
648 648  
649 -(((
650 -Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
651 -)))
783 +² When min=0, and max≠0, Alarm higher than max
652 652  
785 +² When min≠0, and max=0, Alarm lower than min
653 653  
787 +² When min≠0 and max≠0, Alarm higher than max or lower than min
654 654  
655 -== 2.8  ​Battery Analysis ==
656 656  
657 -=== 2.8.1  ​Battery Type ===
790 +**~ (% style="color:blue" %)Example:(%%)**
658 658  
792 +AT+ SHTEMP=20,30 ~/~/ Alarm when temperature lower than 20.
659 659  
660 -(((
661 -The NDDS75 battery is a combination of an 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is none-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
662 -)))
663 663  
664 -(((
665 -The battery is designed to last for several years depends on the actually use environment and update interval. 
666 -)))
795 +== 2.6 Set the number of data to be uploaded and the recording time ==
667 667  
668 -(((
669 -The battery related documents as below:
670 -)))
671 671  
672 -* [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
673 -* [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
674 -* [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
798 +**~ (% style="color:blue" %)➢ AT Command:(%%)**
675 675  
676 -(((
677 -[[image:image-20220709101450-2.png]]
678 -)))
800 +* (% style="color:#037691" %)**AT+TR=900**     (%%)~/~/  The unit is seconds, and the default is to record data once every 900 seconds.( The minimum can be set to 180 seconds)
801 +* (% style="color:#037691" %)**AT+NOUD=8**  (%%)~/~/  The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
679 679  
803 + The diagram below explains the relationship between TR, NOUD, and TDC more clearly**:**
680 680  
805 +[[image:image-20221009001045-1.png||height="726" width="1009"]]
681 681  
682 -=== 2.8.2  Power consumption Analyze ===
683 683  
684 -(((
685 -Dragino battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
686 -)))
808 +== 2.7 Read or Clear cached data ==
687 687  
688 688  
689 -(((
690 -Instruction to use as below:
691 -)))
811 +**~ (% style="color:blue" %)➢ AT Command:(%%)**
692 692  
693 -(((
694 -(% style="color:blue" %)**Step 1:  **(%%)Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
695 -)))
813 +* (% style="color:#037691" %)**AT+CDP**  (%%) ~/~/ Read cached data
814 +* (% style="color:#037691" %)**AT+CDP=0** (%%) ~/~/  Clear cached data
696 696  
816 +[[image:image-20220908163102-2.png]]
697 697  
698 -(((
699 -(% style="color:blue" %)**Step 2: **(%%) Open it and choose
700 -)))
701 701  
702 -* (((
703 -Product Model
704 -)))
705 -* (((
706 -Uplink Interval
707 -)))
708 -* (((
709 -Working Mode
710 -)))
819 += 2.8 Battery & Power Consumption =
711 711  
712 -(((
713 -And the Life expectation in difference case will be shown on the right.
714 -)))
715 715  
716 -[[image:image-20220709110451-3.png]]
822 +N95S31B uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
717 717  
824 +[[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
718 718  
719 719  
720 -=== 2.8.3  ​Battery Note ===
827 +
721 721  
722 -(((
723 -The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
724 -)))
829 += 3. ​ Access NB-IoT Module =
725 725  
726 726  
727 -
728 -=== 2.8.4  Replace the battery ===
729 -
730 730  (((
731 -The default battery pack of NDDS75 includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence without the SPC1520 capacitor, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes).
732 -)))
733 -
734 -
735 -
736 -= 3. ​ Access NB-IoT Module =
737 -
738 -(((
739 739  Users can directly access the AT command set of the NB-IoT module.
740 740  )))
741 741  
742 742  (((
743 743  The AT Command set can refer the BC35-G NB-IoT Module AT Command: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/]] 
838 +
839 +
744 744  )))
745 745  
746 746  [[image:1657333200519-600.png]]
747 747  
748 748  
749 -
750 750  = 4.  Using the AT Commands =
751 751  
752 752  == 4.1  Access AT Commands ==
753 753  
754 -See this link for detail: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/]]
755 755  
850 +See NBSN95 AT Command in this link for detail:  [[https:~~/~~/www.dropbox.com/sh/jao1xt9kw5r3yq4/AAAMpJkZzExF2JLbRWxGoQ9Na?dl=0>>https://www.dropbox.com/sh/jao1xt9kw5r3yq4/AAAMpJkZzExF2JLbRWxGoQ9Na?dl=0]]
756 756  
852 +
757 757  AT+<CMD>?  : Help on <CMD>
758 758  
759 759  AT+<CMD>         : Run <CMD>
... ... @@ -793,7 +793,24 @@
793 793  
794 794  AT+SERVADDR  : Server Address
795 795  
892 +AT+TR      : Get or Set record time
796 796  
894 +AT+APN     : Get or set the APN
895 +
896 +AT+FBAND   : Get or Set whether to automatically modify the frequency band
897 +
898 +AT+DNSCFG  : Get or Set DNS Server
899 +
900 +AT+GETSENSORVALUE   : Returns the current sensor measurement
901 +
902 +AT+NOUD      : Get or Set the number of data to be uploaded
903 +
904 +AT+CDP     : Read or Clear cached data
905 +
906 +AT+SHTEMP: Get or Set alarm of temp
907 +
908 +AT+SHHUM: Get or Set alarm of moisture
909 +
797 797  (% style="color:#037691" %)**COAP Management**      
798 798  
799 799  AT+URI            : Resource parameters
... ... @@ -824,7 +824,6 @@
824 824  AT+PWORD  : Serial Access Password
825 825  
826 826  
827 -
828 828  = ​5.  FAQ =
829 829  
830 830  == 5.1 ​ How to Upgrade Firmware ==
... ... @@ -839,11 +839,14 @@
839 839  )))
840 840  
841 841  (((
842 -(% style="color:red" %)Notice, NDDS75 and LDDS75 share the same mother board. They use the same connection and method to update.
954 +
955 +
956 +(((
957 +(% style="color:red" %)**Notice, N95S31B and LSN50v2 share the same mother board. They use the same connection and method to update.**
843 843  )))
959 +)))
844 844  
845 845  
846 -
847 847  = 6.  Trouble Shooting =
848 848  
849 849  == 6.1  ​Connection problem when uploading firmware ==
... ... @@ -858,9 +858,9 @@
858 858  
859 859  )))
860 860  
861 -
862 862  == 6.2  AT Command input doesn't work ==
863 863  
978 +
864 864  (((
865 865  In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
866 866  
... ... @@ -867,18 +867,12 @@
867 867  
868 868  )))
869 869  
870 -
871 871  = 7. ​ Order Info =
872 872  
873 873  
874 -Part Number**:** (% style="color:#4f81bd" %)**NSDDS75**
988 +Part Number**:** (% style="color:#4f81bd" %)**N95S31B-YY**
875 875  
876 876  
877 -(% class="wikigeneratedid" %)
878 -(((
879 -
880 -)))
881 -
882 882  = 8.  Packing Info =
883 883  
884 884  (((
... ... @@ -886,7 +886,7 @@
886 886  
887 887  (% style="color:#037691" %)**Package Includes**:
888 888  
889 -* NSE01 NB-IoT Distance Detect Sensor Node x 1
998 +* N95S31B NB-IoT Temperature and Humidity Sensor
890 890  * External antenna x 1
891 891  )))
892 892  
... ... @@ -895,21 +895,24 @@
895 895  
896 896  (% style="color:#037691" %)**Dimension and weight**:
897 897  
898 -
899 899  * Device Size: 13.0 x 5 x 4.5 cm
900 900  * Device Weight: 150g
901 -* Package Size / pcs : 15 x 12x 5.5 cm
902 -* Weight / pcs : 220g
1009 +* Package Size / pcs : 14.0 x 8x 5 cm
1010 +* Weight / pcs : 180g
903 903  )))
904 904  
905 905  (((
906 906  
907 907  
908 -
909 909  
910 910  )))
911 911  
912 912  = 9.  Support =
913 913  
1021 +
914 914  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
915 915  * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]]
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