Last modified by Mengting Qiu on 2024/04/02 16:44
<
From version < 130.14 >
edited by Xiaoling
on 2023/04/28 14:57
To version < 129.2 >
edited by Xiaoling
on 2022/10/14 17:59
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -17,8 +17,11 @@
17 17  
18 18  = 1.  Introduction =
19 19  
20 +
20 20  == 1.1 ​ What is N95S31B NB-IoT Sensor Node ==
21 21  
23 +(((
24 +
22 22  
23 23  (((
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*.
... ... @@ -37,13 +37,20 @@
37 37  )))
38 38  
39 39  (((
43 +
44 +)))
45 +
46 +(((
40 40  ~* make sure you have NB-IoT coverage locally.
41 41  )))
42 42  
50 +
51 +)))
43 43  
44 44  [[image:1657348284168-431.png]]
45 45  
46 46  
56 +
47 47  == 1.2 ​ Features ==
48 48  
49 49  
... ... @@ -70,12 +70,12 @@
70 70  
71 71  (% style="color:#037691" %)**NB-IoT Spec:**
72 72  
73 -* B1 @H-FDD: 2100MHz
74 -* B3 @H-FDD: 1800MHz
75 -* B8 @H-FDD: 900MHz
76 -* B5 @H-FDD: 850MHz
77 -* B20 @H-FDD: 800MHz
78 -* B28 @H-FDD: 700MHz
83 +* - B1 @H-FDD: 2100MHz
84 +* - B3 @H-FDD: 1800MHz
85 +* - B8 @H-FDD: 900MHz
86 +* - B5 @H-FDD: 850MHz
87 +* - B20 @H-FDD: 800MHz
88 +* - B28 @H-FDD: 700MHz
79 79  
80 80  (% style="color:#037691" %)**Battery:**
81 81  
... ... @@ -101,6 +101,7 @@
101 101  ​
102 102  
103 103  
114 +
104 104  == 1.5  Pin Definitions & Switch ==
105 105  
106 106  
... ... @@ -110,6 +110,7 @@
110 110  [[image:image-20220709144723-1.png]]
111 111  
112 112  
124 +
113 113  === 1.5.1 Jumper JP2 ===
114 114  
115 115  
... ... @@ -116,18 +116,20 @@
116 116  Power on Device when put this jumper.
117 117  
118 118  
131 +
119 119  === 1.5.2 BOOT MODE / SW1 ===
120 120  
121 121  
122 122  (((
123 -**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.
136 +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.
124 124  )))
125 125  
126 126  (((
127 -**2) Flash:**  work mode, device starts to work and send out console output for further debug
140 +2) Flash: work mode, device starts to work and send out console output for further debug
128 128  )))
129 129  
130 130  
144 +
131 131  === 1.5.3 Reset Button ===
132 132  
133 133  
... ... @@ -134,18 +134,20 @@
134 134  Press to reboot the device.
135 135  
136 136  
151 +
137 137  === 1.5.4 LED ===
138 138  
139 139  
140 140  It will flash:
141 141  
142 -1.  When boot the device in flash mode
157 +1. When boot the device in flash mode
158 +1. Send an uplink packet
143 143  
144 -2.  Send an uplink packet
145 145  
146 146  
147 147  = 2.  Use N95S31B to communicate with IoT Server =
148 148  
164 +
149 149  == 2.1  How it works ==
150 150  
151 151  
... ... @@ -168,8 +168,10 @@
168 168  
169 169  )))
170 170  
187 +
171 171  == 2.2 ​ Configure the N95S31B ==
172 172  
190 +
173 173  === 2.2.1  Power On N95S31B ===
174 174  
175 175  
... ... @@ -176,9 +176,10 @@
176 176  [[image:image-20220709150546-2.png]]
177 177  
178 178  
179 -=== 2.2.2 Test Requirement ===
180 180  
198 +=== 2.2.1 Test Requirement ===
181 181  
200 +
182 182  (((
183 183  To use N95S31B in your city, make sure meet below requirements:
184 184  )))
... ... @@ -225,6 +225,7 @@
225 225  [[image:1657350625843-586.png]]
226 226  
227 227  
247 +
228 228  === 2.2.3  Insert SIM card ===
229 229  
230 230  
... ... @@ -240,6 +240,7 @@
240 240  [[image:1657351240556-536.png]]
241 241  
242 242  
263 +
243 243  === 2.2.4  Connect USB – TTL to N95S31B to configure it ===
244 244  
245 245  
... ... @@ -254,13 +254,13 @@
254 254  [[image:1657351312545-300.png]]
255 255  
256 256  
257 -(% style="color:blue" %)**Connection:**
278 +**Connection:**
258 258  
259 - (% style="background-color:yellow" %)**USB TTL GND <~-~-~-~-> GND**
280 + (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
260 260  
261 -**~ (% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD(%%)**
282 + (% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD
262 262  
263 -**~ (% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD(%%)**
284 + (% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD
264 264  
265 265  
266 266  In the PC, use below serial tool settings:
... ... @@ -283,6 +283,7 @@
283 283  )))
284 284  
285 285  
307 +
286 286  === 2.2.5  Use CoAP protocol to uplink data ===
287 287  
288 288  
... ... @@ -319,6 +319,7 @@
319 319  [[image:1657352185396-303.png]]
320 320  
321 321  
344 +
322 322  === 2.2.6  Use UDP protocol to uplink data(Default protocol) ===
323 323  
324 324  
... ... @@ -332,18 +332,19 @@
332 332  [[image:1657352403317-397.png]]
333 333  
334 334  
358 +
335 335  === 2.2.7  Use MQTT protocol to uplink data ===
336 336  
337 337  
338 338  N95S31B supports only plain MQTT now it doesn't support TLS and other related encryption.
339 339  
340 -* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/  Set to use MQTT protocol to uplink
341 -* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/  Set MQTT server address and port
342 -* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/  Set up the CLIENT of MQTT
343 -* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/  Set the username of MQTT
344 -* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/  Set the password of MQTT
345 -* (% style="color:blue" %)**AT+PUBTOPIC=f9527                               **(%%)~/~/  Set the sending topic of MQTT
346 -* (% style="color:blue" %)**AT+SUBTOPIC=Ns9527          **(%%) ~/~/  Set the subscription topic of MQTT
364 +* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
365 +* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
366 +* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
367 +* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/Set the username of MQTT
368 +* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/Set the password of MQTT
369 +* (% style="color:blue" %)**AT+PUBTOPIC=f9527                               **(%%)~/~/Set the sending topic of MQTT
370 +* (% style="color:blue" %)**AT+SUBTOPIC=Ns9527          **(%%) ~/~/Set the subscription topic of MQTT
347 347  
348 348  [[image:1657352634421-276.png]]
349 349  
... ... @@ -355,11 +355,13 @@
355 355  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.
356 356  )))
357 357  
382 +
358 358  (((
359 359  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.
360 360  )))
361 361  
362 362  
388 +
363 363  === 2.2.8  Use TCP protocol to uplink data ===
364 364  
365 365  
... ... @@ -374,6 +374,7 @@
374 374  [[image:1657352914475-252.png]]
375 375  
376 376  
403 +
377 377  === 2.2.9  Change Update Interval ===
378 378  
379 379  
... ... @@ -394,6 +394,7 @@
394 394  )))
395 395  
396 396  
424 +
397 397  == 2.3  Uplink Payload ==
398 398  
399 399  
... ... @@ -407,7 +407,7 @@
407 407  )))
408 408  
409 409  (((
410 - (% 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.
438 + (% 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.
411 411  )))
412 412  
413 413  
... ... @@ -436,18 +436,23 @@
436 436  **By default, the device will send an uplink message every 1 hour.**
437 437  
438 438  
467 +
439 439  
440 440  )))
441 441  
442 442  === 2.3.1  Payload Analyze ===
443 443  
473 +
444 444  ==== 2.3.1.1  Before Firmware v1.2 ====
445 445  
446 446  
447 -N95S31B uplink payload includes in total 21 bytes.
477 +N95S31B uplink payload includes in total 21 bytes
448 448  
449 -(% border="1" style="background-color:#f2f2f2; width:520px" %)
450 -|=(% style="width: 50px;background-color:#D9E2F3" %)**Size(bytes)**|=(% style="width: 45px;background-color:#D9E2F3" %)**6**|=(% style="width: 25px;background-color:#D9E2F3" %)2|=(% style="width: 25px;background-color:#D9E2F3" %)**2**|=(% style="width: 65px;background-color:#D9E2F3" %)**1**|=(% style="width: 50px;background-color:#D9E2F3" %)1|=(% style="width: 120px;background-color:#D9E2F3" %)5|=(% style="width: 70px;background-color:#D9E2F3" %)**2**|=(% style="width: 70px;background-color:#D9E2F3" %)**2**
479 +
480 +(% border="2" cellspacing="10" style="background-color:#ffffcc; color:green; width:745px" %)
481 +|=(% style="width: 60px;" %)(((
482 +**Size(bytes)**
483 +)))|=(% style="width: 65px;" %)**6**|=(% style="width: 50px;" %)2|=(% style="width: 25px;" %)**2**|=(% style="width: 75px;" %)**1**|=(% style="width: 59px;" %)1|=(% style="width: 162px;" %)5|=(% style="width: 102px;" %)**2**|=(% style="width: 81px;" %)**2**
451 451  |(% 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" %)(((
452 452  (((
453 453  Reserve/ Same as NBSN95 CFGMOD=1
... ... @@ -486,7 +486,7 @@
486 486  [[image:1657354294009-643.png]]
487 487  
488 488  
489 -The payload is ASCII string, representative same HEX: (% style="background-color:yellow" %)**0x724031607457 006e 0ccd 1b 01 00dc000ccc 00e1 0186**
522 +The payload is ASCII string, representative same HEX: **0x724031607457 006e 0ccd 1b 01 00dc000ccc 00e1 0186**
490 490  
491 491  **where:**
492 492  
... ... @@ -509,6 +509,7 @@
509 509  (((
510 510  
511 511  
545 +
512 512  
513 513  )))
514 514  
... ... @@ -520,9 +520,9 @@
520 520  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.
521 521  
522 522  
523 -(% border="1" style="background-color:#f2f2f2; width:520px" %)
524 -|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**8**|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:30px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:55px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:35px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:30px" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:35px" %)**4**
525 -|=(% 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 .....
557 +(% border="2" style="background-color:#ffffcc; color:green; width:1234px" %)
558 +|(% style="width:95px" %)**Size(bytes)**|(% style="width:82px" %)**8**|(% style="width:43px" %)**2**|(% style="width:47px" %)**2**|(% style="width:124px" %)**1**|(% style="width:56px" %)**1**|(% style="width:109px" %)**2**|(% style="width:80px" %)**1**|(% style="width:51px" %)**2**|(% style="width:79px" %)**2**|(% style="width:84px" %)**2**|(% style="width:100px" %)**4**|(% style="width:76px" %)**2**|(% style="width:81px" %)**2**|(% style="width:121px" %)**4**
559 +|(% 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 .....
526 526  
527 527  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the N95S31B uplink data.
528 528  
... ... @@ -532,10 +532,8 @@
532 532  
533 533  The payload is ASCII string, representative same HEX:
534 534  
535 -**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__ **
569 +**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__ __0112023b631998f3__// //__011202426319983f__ __01110242631996eb__**
536 536  
537 -**__0112023b631998f3__// //__011202426319983f__ __01110242631996eb__**
538 -
539 539  **where:**
540 540  
541 541  * (% style="color:#037691" %)**Device ID:**(%%) f868411056758782 = f868411056758782
... ... @@ -542,7 +542,7 @@
542 542  
543 543  * (% style="color:#037691" %)**Version:** (%%)0x000c=120=1.2
544 544  
545 -* (% style="color:#037691" %)**BAT:**      (%%)0x0d0f = 3343 mV = 3.343V
577 +* (% style="color:#037691" %)**BAT:**  (%%)0x0d0f = 3343 mV = 3.343V
546 546  
547 547  * (% style="color:#037691" %)**Singal:**(%%)  0x0c = 12
548 548  
... ... @@ -566,6 +566,7 @@
566 566  
567 567  
568 568  
601 +
569 569  === 2.3.2  Device ID ===
570 570  
571 571  
... ... @@ -606,6 +606,7 @@
606 606  AT+DEUI=868411056754138
607 607  
608 608  
642 +
609 609  === 2.3.3  Version Info ===
610 610  
611 611  
... ... @@ -614,11 +614,11 @@
614 614  )))
615 615  
616 616  (((
617 -**Higher byte:** Specify hardware version: always 0x00 for N95S31B
651 +Higher byte: Specify hardware version: always 0x00 for N95S31B
618 618  )))
619 619  
620 620  (((
621 -**Lower byte:** Specify the software version: 0x6E=110, means firmware version 110
655 +Lower byte: Specify the software version: 0x6E=110, means firmware version 110
622 622  )))
623 623  
624 624  (((
... ... @@ -633,6 +633,7 @@
633 633  
634 634  )))
635 635  
670 +
636 636  === 2.3.4  Battery Info ===
637 637  
638 638  
... ... @@ -645,6 +645,7 @@
645 645  )))
646 646  
647 647  
683 +
648 648  === 2.3.5  Signal Strength ===
649 649  
650 650  
... ... @@ -677,6 +677,7 @@
677 677  )))
678 678  
679 679  
716 +
680 680  === 2.3.6  Temperature & Humidity ===
681 681  
682 682  
... ... @@ -695,16 +695,13 @@
695 695  Humidity:    Read:0295(H)=661(D)    Value:  661 / 10=66.1, So 66.1%
696 696  
697 697  
735 +
698 698  == 2.4  Downlink Payload ==
699 699  
700 700  
701 701  By default, N95S31B prints the downlink payload to console port.
702 702  
703 -(% border="1" style="background-color:#f2f2f2; width:520px" %)
704 -|(% style="background-color:#d9e2f3; color:#0070c0; width:200px" %)**Downlink Control Type**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**FPort**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**Type Code**|(% style="background-color:#d9e2f3; color:#0070c0; width:170px" %)**Downlink payload size(bytes)**
705 -|(% style="width:204px" %)TDC(Transmit Time Interval)|(% style="width:80px" %)Any|(% style="width:94px" %)01|(% style="width:150px" %)4
706 -|(% style="width:204px" %)RESET|(% style="width:80px" %)Any|(% style="width:94px" %)04|(% style="width:150px" %)2
707 -|(% style="width:204px" %)INTMOD|(% style="width:80px" %)Any|(% style="width:94px" %)06|(% style="width:150px" %)4
741 +[[image:image-20220709100028-1.png]]
708 708  
709 709  
710 710  (((
... ... @@ -751,6 +751,7 @@
751 751  )))
752 752  
753 753  
788 +
754 754  == 2.5  Humidity and Temperature alarm function ==
755 755  
756 756  
... ... @@ -786,6 +786,7 @@
786 786  AT+ SHTEMP=20,30 ~/~/ Alarm when temperature lower than 20.
787 787  
788 788  
824 +
789 789  == 2.6 Set the number of data to be uploaded and the recording time ==
790 790  
791 791  
... ... @@ -799,6 +799,7 @@
799 799  [[image:image-20221009001045-1.png||height="726" width="1009"]]
800 800  
801 801  
838 +
802 802  == 2.7 Read or Clear cached data ==
803 803  
804 804  
... ... @@ -810,14 +810,70 @@
810 810  [[image:image-20220908163102-2.png]]
811 811  
812 812  
813 -== 2.8 Battery & Power Consumption ==
814 814  
851 +== 2.8  ​Battery Analysis ==
815 815  
816 -N95S31B uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
817 817  
818 -[[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
854 +=== 2.8.1  ​Battery Type ===
819 819  
820 820  
857 +(((
858 +The N95S31B 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.
859 +)))
860 +
861 +(((
862 +The battery is designed to last for several years depends on the actually use environment and update interval. 
863 +)))
864 +
865 +(((
866 +The battery related documents as below:
867 +)))
868 +
869 +* [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
870 +* [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
871 +* [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
872 +
873 +(((
874 +[[image:image-20220709101450-2.png]]
875 +)))
876 +
877 +
878 +
879 +=== 2.8.2  Power consumption Analyze ===
880 +
881 +
882 +(((
883 +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.
884 +)))
885 +
886 +(((
887 +
888 +)))
889 +
890 +
891 +=== 2.8.3  ​Battery Note ===
892 +
893 +
894 +(((
895 +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.
896 +)))
897 +
898 +
899 +
900 +=== 2.8.4  Replace the battery ===
901 +
902 +
903 +(((
904 +You can change the battery in the N95S31B.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won't be voltage drop between battery and main board.
905 +)))
906 +
907 +
908 +(((
909 +The default battery pack of N95S31B 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).
910 +)))
911 +
912 +
913 +
821 821  = 3. ​ Access NB-IoT Module =
822 822  
823 823  
... ... @@ -834,8 +834,10 @@
834 834  [[image:1657333200519-600.png]]
835 835  
836 836  
930 +
837 837  = 4.  Using the AT Commands =
838 838  
933 +
839 839  == 4.1  Access AT Commands ==
840 840  
841 841  
... ... @@ -929,8 +929,10 @@
929 929  AT+PWORD  : Serial Access Password
930 930  
931 931  
1027 +
932 932  = ​5.  FAQ =
933 933  
1030 +
934 934  == 5.1 ​ How to Upgrade Firmware ==
935 935  
936 936  
... ... @@ -943,14 +943,18 @@
943 943  )))
944 944  
945 945  (((
946 -Firmware Download：[[https:~~/~~/www.dropbox.com/sh/fr8w23rb951512i/AACSJeGQg-7ZjKhAI_Sn57H6a?dl=0>>https://www.dropbox.com/sh/fr8w23rb951512i/AACSJeGQg-7ZjKhAI_Sn57H6a?dl=0]]
1043 +
947 947  
1045 +(((
948 948  (% style="color:red" %)**Notice, N95S31B and LSN50v2 share the same mother board. They use the same connection and method to update.**
949 949  )))
1048 +)))
950 950  
951 951  
1051 +
952 952  = 6.  Trouble Shooting =
953 953  
1054 +
954 954  == 6.1  ​Connection problem when uploading firmware ==
955 955  
956 956  
... ... @@ -958,7 +958,12 @@
958 958  **Please see: **[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting]]
959 959  )))
960 960  
1062 +(% class="wikigeneratedid" %)
1063 +(((
1064 +
1065 +)))
961 961  
1067 +
962 962  == 6.2  AT Command input doesn't work ==
963 963  
964 964  
... ... @@ -968,12 +968,7 @@
968 968  
969 969  )))
970 970  
971 -== 6.3 Not able to connect to NB-IoT network and keep showing "Signal Strength:99". ==
972 972  
973 -
974 -This means sensor is trying to join the NB-IoT network but fail. Please see this link for **//[[trouble shooting for signal strenght:99>>doc:Main.CSQ\:99,99.WebHome]]//**.
975 -
976 -
977 977  = 7. ​ Order Info =
978 978  
979 979  
... ... @@ -980,6 +980,11 @@
980 980  Part Number**:** (% style="color:#4f81bd" %)**N95S31B-YY**
981 981  
982 982  
1084 +(% class="wikigeneratedid" %)
1085 +(((
1086 +
1087 +)))
1088 +
983 983  = 8.  Packing Info =
984 984  
985 985  (((
... ... @@ -1002,13 +1002,15 @@
1002 1002  * Weight / pcs : 180g
1003 1003  )))
1004 1004  
1111 +(((
1112 +
1005 1005  
1006 1006  
1115 +
1116 +)))
1117 +
1007 1007  = 9.  Support =
1008 1008  
1009 1009  
1010 1010  * 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.
1011 -
1012 1012  * 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]]
1013 -
1014 -

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