Last modified by Mengting Qiu on 2024/04/02 16:44
<
From version < 119.1 >
edited by Xiaoling
on 2022/07/12 17:49
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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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
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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  )))
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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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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.**
433 433  
434 434  
435 435  
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438 438  
439 439  === 2.3.1  Payload Analyze ===
440 440  
478 +
441 441  N95S31B uplink payload includes in total 21 bytes
442 442  
443 443  
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472 472  )))
473 473  
474 474  (((
513 +
514 +
475 475  (((
476 476  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NB sensor uplink data.
477 477  )))
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504 504  
505 505  === 2.3.2  Device ID ===
506 506  
547 +
507 507  (((
508 508  By default, the Device ID equal to the last 6 bytes of IMEI.
509 509  )))
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528 528  
529 529  === 2.3.3  Version Info ===
530 530  
572 +
531 531  (((
532 532  These bytes include the hardware and software version.
533 533  )))
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555 555  
556 556  === 2.3.4  Battery Info ===
557 557  
600 +
558 558  (((
559 559  Ex1: 0x0B45 = 2885mV
560 560  )))
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567 567  
568 568  === 2.3.5  Signal Strength ===
569 569  
613 +
570 570  (((
571 571  NB-IoT Network signal Strength.
572 572  )))
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599 599  
600 600  === 2.3.6  Temperature & Humidity ===
601 601  
646 +
602 602  The device will be able to get the SHT31 temperature and humidity data now and upload to IoT Server.
603 603  
604 604  [[image:image-20220709161741-3.png]]
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617 617  
618 618  == 2.4  Downlink Payload ==
619 619  
665 +
620 620  By default, N95S31B prints the downlink payload to console port.
621 621  
622 622  [[image:image-20220709100028-1.png]]
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669 669  
670 670  == 2.5  ​Battery Analysis ==
671 671  
718 +
672 672  === 2.5.1  ​Battery Type ===
673 673  
674 674  
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696 696  
697 697  === 2.5.2  Power consumption Analyze ===
698 698  
746 +
699 699  (((
700 -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.
701 701  )))
702 702  
703 703  (((
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707 707  
708 708  === 2.5.3  ​Battery Note ===
709 709  
758 +
710 710  (((
711 711  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.
712 712  )))
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729 729  
730 730  = 3. ​ Access NB-IoT Module =
731 731  
781 +
732 732  (((
733 733  Users can directly access the AT command set of the NB-IoT module.
734 734  )))
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735 735  
736 736  (((
737 737  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 +
738 738  )))
739 739  
740 740  [[image:1657333200519-600.png]]
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743 743  
744 744  = 4.  Using the AT Commands =
745 745  
798 +
746 746  == 4.1  Access AT Commands ==
747 747  
748 -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/]]
749 749  
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]]
750 750  
804 +
751 751  AT+<CMD>?  : Help on <CMD>
752 752  
753 753  AT+<CMD>         : Run <CMD>
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821 821  
822 822  = ​5.  FAQ =
823 823  
878 +
824 824  == 5.1 ​ How to Upgrade Firmware ==
825 825  
826 826  
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836 836  
837 837  
838 838  (((
839 -(% 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.**
840 840  )))
841 841  )))
842 842  
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844 844  
845 845  = 6.  Trouble Shooting =
846 846  
902 +
847 847  == 6.1  ​Connection problem when uploading firmware ==
848 848  
849 849  
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859 859  
860 860  == 6.2  AT Command input doesn't work ==
861 861  
918 +
862 862  (((
863 863  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.
864 864  
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908 908  
909 909  = 9.  Support =
910 910  
968 +
911 911  * 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.
912 912  * 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 +
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