Last modified by Mengting Qiu on 2024/04/02 16:44
<
From version < 118.3 >
edited by Xiaoling
on 2022/07/12 17:19
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}

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Details

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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
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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
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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  )))
... ... @@ -135,6 +135,7 @@
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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147 147  1. Send an uplink packet
148 148  
149 149  
167 +
168 +
150 150  = 2.  Use N95S31B to communicate with IoT Server =
151 151  
171 +
152 152  == 2.1  How it works ==
153 153  
154 154  
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181 181  [[image:image-20220709150546-2.png]]
182 182  
183 183  
204 +
184 184  === 2.2.1 Test Requirement ===
185 185  
186 186  
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233 233  
234 234  === 2.2.3  Insert SIM card ===
235 235  
257 +
236 236  (((
237 237  Insert the NB-IoT Card get from your provider.
238 238  )))
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248 248  
249 249  === 2.2.4  Connect USB – TTL to N95S31B to configure it ===
250 250  
273 +
251 251  (((
252 252  (((
253 253  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 +
254 254  )))
255 255  )))
256 256  
257 257  [[image:1657351312545-300.png]]
258 258  
284 +
259 259  **Connection:**
260 260  
261 261   (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
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279 279  
280 280  [[image:1657329814315-101.png]]
281 281  
308 +
282 282  (((
283 -(% 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]]**
284 284  )))
285 285  
286 286  
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287 287  
288 288  === 2.2.5  Use CoAP protocol to uplink data ===
289 289  
290 -(% 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/]]
291 291  
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/]]**
292 292  
320 +
293 293  (((
294 294  **Use below commands:**
295 295  )))
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328 328  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
329 329  * (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/ If the server does not respond, this command is unnecessary
330 330  
359 +
360 +
331 331  [[image:1657352391268-297.png]]
332 332  
333 333  
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337 337  
338 338  === 2.2.7  Use MQTT protocol to uplink data ===
339 339  
370 +
340 340  N95S31B supports only plain MQTT now it doesn't support TLS and other related encryption.
341 341  
342 342  * (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
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347 347  * (% style="color:blue" %)**AT+PUBTOPIC=f9527                               **(%%)~/~/Set the sending topic of MQTT
348 348  * (% style="color:blue" %)**AT+SUBTOPIC=Ns9527          **(%%) ~/~/Set the subscription topic of MQTT
349 349  
381 +
382 +
350 350  [[image:1657352634421-276.png]]
351 351  
352 352  
353 353  [[image:1657352645687-385.png]]
354 354  
388 +
355 355  (((
356 356  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.
357 357  )))
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365 365  
366 366  === 2.2.8  Use TCP protocol to uplink data ===
367 367  
402 +
368 368  This feature is supported since firmware version v110
369 369  
370 370  * (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/ Set to use TCP protocol to uplink
371 371  * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/ to set TCP server address and port
372 372  
408 +
409 +
373 373  [[image:1657352898400-901.png]]
374 374  
375 375  
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379 379  
380 380  === 2.2.9  Change Update Interval ===
381 381  
419 +
382 382  User can use below command to change the (% style="color:green" %)**uplink interval**.
383 383  
384 384  * (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
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393 393  
394 394  
395 395  (((
396 -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.
397 397  )))
398 398  
399 399  
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402 402  )))
403 403  
404 404  (((
405 - (% 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.
406 406  )))
407 407  
408 408  
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425 425  
426 426  (% style="color:red" %)
427 427  1. (((
428 -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"]].**
429 429  )))
430 430  1. (((
431 -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 +
432 432  )))
433 433  
434 434  === 2.3.1  Payload Analyze ===
435 435  
478 +
436 436  N95S31B uplink payload includes in total 21 bytes
437 437  
438 438  
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467 467  )))
468 468  
469 469  (((
513 +
514 +
470 470  (((
471 471  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NB sensor uplink data.
472 472  )))
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499 499  
500 500  === 2.3.2  Device ID ===
501 501  
547 +
502 502  (((
503 503  By default, the Device ID equal to the last 6 bytes of IMEI.
504 504  )))
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523 523  
524 524  === 2.3.3  Version Info ===
525 525  
572 +
526 526  (((
527 527  These bytes include the hardware and software version.
528 528  )))
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550 550  
551 551  === 2.3.4  Battery Info ===
552 552  
600 +
553 553  (((
554 554  Ex1: 0x0B45 = 2885mV
555 555  )))
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562 562  
563 563  === 2.3.5  Signal Strength ===
564 564  
613 +
565 565  (((
566 566  NB-IoT Network signal Strength.
567 567  )))
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594 594  
595 595  === 2.3.6  Temperature & Humidity ===
596 596  
646 +
597 597  The device will be able to get the SHT31 temperature and humidity data now and upload to IoT Server.
598 598  
599 599  [[image:image-20220709161741-3.png]]
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612 612  
613 613  == 2.4  Downlink Payload ==
614 614  
615 -By default, NDDS75 prints the downlink payload to console port.
616 616  
666 +By default, N95S31B prints the downlink payload to console port.
667 +
617 617  [[image:image-20220709100028-1.png]]
618 618  
619 619  
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650 650  )))
651 651  
652 652  (((
653 -If payload = 0x04FF, it will reset the NDDS75
704 +If payload = 0x04FF, it will reset the N95S31B
654 654  )))
655 655  
656 656  
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664 664  
665 665  == 2.5  ​Battery Analysis ==
666 666  
718 +
667 667  === 2.5.1  ​Battery Type ===
668 668  
669 669  
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691 691  
692 692  === 2.5.2  Power consumption Analyze ===
693 693  
746 +
694 694  (((
695 -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.
696 696  )))
697 697  
698 698  (((
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702 702  
703 703  === 2.5.3  ​Battery Note ===
704 704  
758 +
705 705  (((
706 706  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.
707 707  )))
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724 724  
725 725  = 3. ​ Access NB-IoT Module =
726 726  
781 +
727 727  (((
728 728  Users can directly access the AT command set of the NB-IoT module.
729 729  )))
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730 730  
731 731  (((
732 732  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 +
733 733  )))
734 734  
735 735  [[image:1657333200519-600.png]]
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738 738  
739 739  = 4.  Using the AT Commands =
740 740  
798 +
741 741  == 4.1  Access AT Commands ==
742 742  
743 -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/]]
744 744  
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]]
745 745  
804 +
746 746  AT+<CMD>?  : Help on <CMD>
747 747  
748 748  AT+<CMD>         : Run <CMD>
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816 816  
817 817  = ​5.  FAQ =
818 818  
878 +
819 819  == 5.1 ​ How to Upgrade Firmware ==
820 820  
821 821  
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831 831  
832 832  
833 833  (((
834 -(% 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.**
835 835  )))
836 836  )))
837 837  
... ... @@ -839,6 +839,7 @@
839 839  
840 840  = 6.  Trouble Shooting =
841 841  
902 +
842 842  == 6.1  ​Connection problem when uploading firmware ==
843 843  
844 844  
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854 854  
855 855  == 6.2  AT Command input doesn't work ==
856 856  
918 +
857 857  (((
858 858  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.
859 859  
... ... @@ -903,5 +903,9 @@
903 903  
904 904  = 9.  Support =
905 905  
968 +
906 906  * 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.
907 907  * 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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