Last modified by Mengting Qiu on 2024/04/02 16:44
<
From version < 117.1 >
edited by Xiaoling
on 2022/07/11 11:05
To version < 121.1 >
edited by David Huang
on 2022/09/08 16:31
>
Change comment: Uploaded new attachment "image-20220908163102-2.png", version {1}

Summary

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Author
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1 -XWiki.Xiaoling
1 +XWiki.David
Content
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17 17  
18 18  = 1.  Introduction =
19 19  
20 +
20 20  == 1.1 ​ What is N95S31B NB-IoT Sensor Node ==
21 21  
22 22  (((
... ... @@ -55,6 +55,7 @@
55 55  
56 56  == 1.2 ​ Features ==
57 57  
59 +
58 58  * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
59 59  * Monitor Temperature & Humidity via SHT31
60 60  * AT Commands to change parameters
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68 68  
69 69  
70 70  
73 +
71 71  == 1.3  Specification ==
72 72  
73 73  
... ... @@ -76,6 +76,8 @@
76 76  * Supply Voltage: 2.1v ~~ 3.6v
77 77  * Operating Temperature: -40 ~~ 85°C
78 78  
82 +
83 +
79 79  (% style="color:#037691" %)**NB-IoT Spec:**
80 80  
81 81  * - B1 @H-FDD: 2100MHz
... ... @@ -85,6 +85,8 @@
85 85  * - B20 @H-FDD: 800MHz
86 86  * - B28 @H-FDD: 700MHz
87 87  
93 +
94 +
88 88  (% style="color:#037691" %)**Battery:**
89 89  
90 90  * Li/SOCI2 un-chargeable battery
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95 95  
96 96  
97 97  
105 +
98 98  == ​1.4  Applications ==
99 99  
108 +
100 100  * Smart Buildings & Home Automation
101 101  * Logistics and Supply Chain Management
102 102  * Smart Metering
... ... @@ -108,15 +108,20 @@
108 108  ​
109 109  
110 110  
111 -== 1.5  Pin Definitions ==
112 112  
121 +== 1.5  Pin Definitions & Switch ==
122 +
123 +
113 113  N95S31B use the mother board from NBSN95 which as below.
114 114  
126 +
115 115  [[image:image-20220709144723-1.png]]
116 116  
117 117  
130 +
118 118  === 1.5.1 Jumper JP2 ===
119 119  
133 +
120 120  Power on Device when put this jumper.
121 121  
122 122  
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123 123  
124 124  === 1.5.2 BOOT MODE / SW1 ===
125 125  
140 +
126 126  (((
127 127  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.
128 128  )))
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135 135  
136 136  === 1.5.3 Reset Button ===
137 137  
153 +
138 138  Press to reboot the device.
139 139  
140 140  
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141 141  
142 142  === 1.5.4 LED ===
143 143  
160 +
144 144  It will flash:
145 145  
146 146  1. When boot the device in flash mode
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148 148  
149 149  
150 150  
168 +
151 151  = 2.  Use N95S31B to communicate with IoT Server =
152 152  
171 +
153 153  == 2.1  How it works ==
154 154  
155 155  
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166 166  
167 167  )))
168 168  
169 -[[image:1657350248151-650.png]]
188 +[[image:1657520100595-569.png]]
170 170  
171 171  (((
172 172  
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182 182  [[image:image-20220709150546-2.png]]
183 183  
184 184  
204 +
185 185  === 2.2.1 Test Requirement ===
186 186  
187 187  
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234 234  
235 235  === 2.2.3  Insert SIM card ===
236 236  
257 +
237 237  (((
238 238  Insert the NB-IoT Card get from your provider.
239 239  )))
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249 249  
250 250  === 2.2.4  Connect USB – TTL to N95S31B to configure it ===
251 251  
273 +
252 252  (((
253 253  (((
254 254  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.
277 +
278 +
255 255  )))
256 256  )))
257 257  
258 258  [[image:1657351312545-300.png]]
259 259  
284 +
260 260  **Connection:**
261 261  
262 262   (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
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280 280  
281 281  [[image:1657329814315-101.png]]
282 282  
308 +
283 283  (((
284 -(% 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/]]
310 +(% 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]]**
285 285  )))
286 286  
287 287  
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288 288  
289 289  === 2.2.5  Use CoAP protocol to uplink data ===
290 290  
291 -(% 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/]]
292 292  
318 +(% 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/]]**
293 293  
320 +
294 294  (((
295 295  **Use below commands:**
296 296  )))
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329 329  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
330 330  * (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/ If the server does not respond, this command is unnecessary
331 331  
359 +
360 +
332 332  [[image:1657352391268-297.png]]
333 333  
334 334  
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338 338  
339 339  === 2.2.7  Use MQTT protocol to uplink data ===
340 340  
370 +
341 341  N95S31B supports only plain MQTT now it doesn't support TLS and other related encryption.
342 342  
343 343  * (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
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348 348  * (% style="color:blue" %)**AT+PUBTOPIC=f9527                               **(%%)~/~/Set the sending topic of MQTT
349 349  * (% style="color:blue" %)**AT+SUBTOPIC=Ns9527          **(%%) ~/~/Set the subscription topic of MQTT
350 350  
381 +
382 +
351 351  [[image:1657352634421-276.png]]
352 352  
353 353  
354 354  [[image:1657352645687-385.png]]
355 355  
388 +
356 356  (((
357 357  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.
358 358  )))
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366 366  
367 367  === 2.2.8  Use TCP protocol to uplink data ===
368 368  
402 +
369 369  This feature is supported since firmware version v110
370 370  
371 371  * (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/ Set to use TCP protocol to uplink
372 372  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/ to set TCP server address and port
373 373  
408 +
409 +
374 374  [[image:1657352898400-901.png]]
375 375  
376 376  
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380 380  
381 381  === 2.2.9  Change Update Interval ===
382 382  
419 +
383 383  User can use below command to change the (% style="color:green" %)**uplink interval**.
384 384  
385 385  * (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
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394 394  
395 395  
396 396  (((
397 -NBSN95 has different working mode for the connections of different type 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.
434 +N95S31B has different working mode for the connections of different type 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.
398 398  )))
399 399  
400 400  
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403 403  )))
404 404  
405 405  (((
406 - (% style="color:blue" %)**AT+CFGMOD=2 ** (%%)~/~/will set the NBSN95 to work in MOD=2 distance mode which target to measure distance via Ultrasonic Sensor.
443 + (% 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.
407 407  )))
408 408  
409 409  
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426 426  
427 427  (% style="color:red" %)
428 428  1. (((
429 -All modes share the same Payload Explanation from [[HERE>>||anchor="H2.3A0UplinkPayload"]].
466 +**All modes share the same Payload Explanation from [[HERE>>||anchor="H2.3A0UplinkPayload"]].**
430 430  )))
431 431  1. (((
432 -By default, the device will send an uplink message every 1 hour.
433 -)))
469 +**By default, the device will send an uplink message every 1 hour.**
434 434  
435 435  
436 436  
473 +
474 +)))
475 +
437 437  === 2.3.1  Payload Analyze ===
438 438  
478 +
439 439  N95S31B uplink payload includes in total 21 bytes
440 440  
441 441  
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470 470  )))
471 471  
472 472  (((
513 +
514 +
473 473  (((
474 474  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NB sensor uplink data.
475 475  )))
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502 502  
503 503  === 2.3.2  Device ID ===
504 504  
547 +
505 505  (((
506 506  By default, the Device ID equal to the last 6 bytes of IMEI.
507 507  )))
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526 526  
527 527  === 2.3.3  Version Info ===
528 528  
572 +
529 529  (((
530 530  These bytes include the hardware and software version.
531 531  )))
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553 553  
554 554  === 2.3.4  Battery Info ===
555 555  
600 +
556 556  (((
557 557  Ex1: 0x0B45 = 2885mV
558 558  )))
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565 565  
566 566  === 2.3.5  Signal Strength ===
567 567  
613 +
568 568  (((
569 569  NB-IoT Network signal Strength.
570 570  )))
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597 597  
598 598  === 2.3.6  Temperature & Humidity ===
599 599  
646 +
600 600  The device will be able to get the SHT31 temperature and humidity data now and upload to IoT Server.
601 601  
602 602  [[image:image-20220709161741-3.png]]
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615 615  
616 616  == 2.4  Downlink Payload ==
617 617  
618 -By default, NDDS75 prints the downlink payload to console port.
619 619  
666 +By default, N95S31B prints the downlink payload to console port.
667 +
620 620  [[image:image-20220709100028-1.png]]
621 621  
622 622  
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653 653  )))
654 654  
655 655  (((
656 -If payload = 0x04FF, it will reset the NDDS75
704 +If payload = 0x04FF, it will reset the N95S31B
657 657  )))
658 658  
659 659  
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667 667  
668 668  == 2.5  ​Battery Analysis ==
669 669  
718 +
670 670  === 2.5.1  ​Battery Type ===
671 671  
672 672  
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694 694  
695 695  === 2.5.2  Power consumption Analyze ===
696 696  
746 +
697 697  (((
698 -The file **DRAGINO_N95S31B-Power-Analyzer.pdf** from [[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/]] describes a detail measurement to analyze the power consumption in different case. User can use it for design guideline for their project.
748 +The file **DRAGINO_N95S31B-Power-Analyzer.pdf** from [[https:~~/~~/www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i~~-~~-AyZcQkoua?dl=0>>https://www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i--AyZcQkoua?dl=0]] describes a detail measurement to analyze the power consumption in different case. User can use it for design guideline for their project.
699 699  )))
700 700  
701 701  (((
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705 705  
706 706  === 2.5.3  ​Battery Note ===
707 707  
758 +
708 708  (((
709 709  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 uplink data, then the battery life may be decreased.
710 710  )))
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727 727  
728 728  = 3. ​ Access NB-IoT Module =
729 729  
781 +
730 730  (((
731 731  Users can directly access the AT command set of the NB-IoT module.
732 732  )))
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733 733  
734 734  (((
735 735  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/]] 
788 +
789 +
736 736  )))
737 737  
738 738  [[image:1657333200519-600.png]]
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741 741  
742 742  = 4.  Using the AT Commands =
743 743  
798 +
744 744  == 4.1  Access AT Commands ==
745 745  
746 -See NBSN95 AT Command in this link for detail:  [[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN95/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN95/]]
747 747  
802 +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]]
748 748  
804 +
749 749  AT+<CMD>?  : Help on <CMD>
750 750  
751 751  AT+<CMD>         : Run <CMD>
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819 819  
820 820  = ​5.  FAQ =
821 821  
878 +
822 822  == 5.1 ​ How to Upgrade Firmware ==
823 823  
824 824  
... ... @@ -834,7 +834,7 @@
834 834  
835 835  
836 836  (((
837 -(% style="color:red" %)Notice, N95S31B and LSN50v2 share the same mother board. They use the same connection and method to update.
894 +(% style="color:red" %)**Notice, N95S31B and LSN50v2 share the same mother board. They use the same connection and method to update.**
838 838  )))
839 839  )))
840 840  
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842 842  
843 843  = 6.  Trouble Shooting =
844 844  
902 +
845 845  == 6.1  ​Connection problem when uploading firmware ==
846 846  
847 847  
... ... @@ -857,6 +857,7 @@
857 857  
858 858  == 6.2  AT Command input doesn't work ==
859 859  
918 +
860 860  (((
861 861  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.
862 862  
... ... @@ -906,5 +906,9 @@
906 906  
907 907  = 9.  Support =
908 908  
968 +
909 909  * 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.
910 910  * 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]]
971 +
972 +
973 +
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