Last modified by Mengting Qiu on 2024/04/02 16:44
<
From version < 118.2 >
edited by Xiaoling
on 2022/07/11 14:15
To version < 120.1 >
edited by David Huang
on 2022/09/08 15:49
>
Change comment: Uploaded new attachment "image-20220908154949-1.png", version {1}

Summary

Details

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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  
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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
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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
... ... @@ -95,8 +95,10 @@
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
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108 108  ​
109 109  
110 110  
120 +
111 111  == 1.5  Pin Definitions & Switch ==
112 112  
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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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.
469 +**By default, the device will send an uplink message every 1 hour.**
470 +
471 +
472 +
473 +
433 433  )))
434 434  
435 435  === 2.3.1  Payload Analyze ===
436 436  
478 +
437 437  N95S31B uplink payload includes in total 21 bytes
438 438  
439 439  
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468 468  )))
469 469  
470 470  (((
513 +
514 +
471 471  (((
472 472  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NB sensor uplink data.
473 473  )))
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500 500  
501 501  === 2.3.2  Device ID ===
502 502  
547 +
503 503  (((
504 504  By default, the Device ID equal to the last 6 bytes of IMEI.
505 505  )))
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524 524  
525 525  === 2.3.3  Version Info ===
526 526  
572 +
527 527  (((
528 528  These bytes include the hardware and software version.
529 529  )))
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551 551  
552 552  === 2.3.4  Battery Info ===
553 553  
600 +
554 554  (((
555 555  Ex1: 0x0B45 = 2885mV
556 556  )))
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563 563  
564 564  === 2.3.5  Signal Strength ===
565 565  
613 +
566 566  (((
567 567  NB-IoT Network signal Strength.
568 568  )))
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595 595  
596 596  === 2.3.6  Temperature & Humidity ===
597 597  
646 +
598 598  The device will be able to get the SHT31 temperature and humidity data now and upload to IoT Server.
599 599  
600 600  [[image:image-20220709161741-3.png]]
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613 613  
614 614  == 2.4  Downlink Payload ==
615 615  
616 -By default, NDDS75 prints the downlink payload to console port.
617 617  
666 +By default, N95S31B prints the downlink payload to console port.
667 +
618 618  [[image:image-20220709100028-1.png]]
619 619  
620 620  
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651 651  )))
652 652  
653 653  (((
654 -If payload = 0x04FF, it will reset the NDDS75
704 +If payload = 0x04FF, it will reset the N95S31B
655 655  )))
656 656  
657 657  
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665 665  
666 666  == 2.5  ​Battery Analysis ==
667 667  
718 +
668 668  === 2.5.1  ​Battery Type ===
669 669  
670 670  
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692 692  
693 693  === 2.5.2  Power consumption Analyze ===
694 694  
746 +
695 695  (((
696 -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.
697 697  )))
698 698  
699 699  (((
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703 703  
704 704  === 2.5.3  ​Battery Note ===
705 705  
758 +
706 706  (((
707 707  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.
708 708  )))
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725 725  
726 726  = 3. ​ Access NB-IoT Module =
727 727  
781 +
728 728  (((
729 729  Users can directly access the AT command set of the NB-IoT module.
730 730  )))
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731 731  
732 732  (((
733 733  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 +
734 734  )))
735 735  
736 736  [[image:1657333200519-600.png]]
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739 739  
740 740  = 4.  Using the AT Commands =
741 741  
798 +
742 742  == 4.1  Access AT Commands ==
743 743  
744 -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/]]
745 745  
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]]
746 746  
804 +
747 747  AT+<CMD>?  : Help on <CMD>
748 748  
749 749  AT+<CMD>         : Run <CMD>
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817 817  
818 818  = ​5.  FAQ =
819 819  
878 +
820 820  == 5.1 ​ How to Upgrade Firmware ==
821 821  
822 822  
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832 832  
833 833  
834 834  (((
835 -(% 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.**
836 836  )))
837 837  )))
838 838  
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840 840  
841 841  = 6.  Trouble Shooting =
842 842  
902 +
843 843  == 6.1  ​Connection problem when uploading firmware ==
844 844  
845 845  
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855 855  
856 856  == 6.2  AT Command input doesn't work ==
857 857  
918 +
858 858  (((
859 859  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.
860 860  
... ... @@ -904,5 +904,9 @@
904 904  
905 905  = 9.  Support =
906 906  
968 +
907 907  * 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.
908 908  * 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 +
image-20220908154949-1.png
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