Last modified by Mengting Qiu on 2024/04/02 16:54
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From version < 38.15 >
edited by Xiaoling
on 2023/04/24 09:19
To version < 33.8 >
edited by Xiaoling
on 2022/09/23 17:18
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Summary

Details

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Content
... ... @@ -9,24 +9,20 @@
9 9  
10 10  = 1.  Introduction =
11 11  
12 +
12 12  == 1.1 ​ What is NLMS01 Leaf Moisture Sensor ==
13 13  
14 14  
15 -(((
16 16  The Dragino NLMS01 is a (% style="color:blue" %)**NB-IOT Leaf Moisture Sensor**(%%) for IoT of Agriculture. It is designed to measure the leaf moisture and temperature, so to send to the platform to analyze the leaf status such as : watering, moisturizing, dew, frozen. The probe is IP67 waterproof.
17 17  
18 18  NLMS01 detects leaf's(% style="color:blue" %)** moisture and temperature use FDR method**(%%), it senses the dielectric constant cause by liquid over the leaf surface, and cover the value to leaf moisture. The probe is design in a leaf shape to best simulate the real leaf characterizes. The probe has as density as 15 leaf vein lines per centimeter which make it can senses small drop and more accuracy.
19 19  
20 20  NarrowBand-Internet of Things (NB-IoT) is a standards-based low power wide area (LPWA) technology developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage.
21 +\\NLMS01 supports different uplink methods include (% style="color:blue" %)**TCP,MQTT,UDP and CoAP  **(%%)for different application requirement.
22 +\\NLMS01 is powered by  (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), It is designed for long term use up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method).
23 +\\To use NLMS01, user needs to check if there is NB-IoT coverage in local area and with the bands NLMS01 supports. If the local operate support it, user needs to get a (% style="color:blue" %)**NB-IoT SIM card**(%%) from local operator and install NLMS01 to get NB-IoT network connection.
21 21  
22 -NLMS01 supports different uplink methods include (% style="color:blue" %)**TCP,MQTT,UDP and CoAP  **(%%)for different application requirement.
23 23  
24 -NLMS01 is powered by  (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), It is designed for long term use up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method).
25 -
26 -To use NLMS01, user needs to check if there is NB-IoT coverage in local area and with the bands NLMS01 supports. If the local operate support it, user needs to get a (% style="color:blue" %)**NB-IoT SIM card**(%%) from local operator and install NLMS01 to get NB-IoT network connection.
27 -)))
28 -
29 -
30 30  ​[[image:image-20220907171221-2.png]]
31 31  
32 32  
... ... @@ -33,6 +33,7 @@
33 33  ​ [[image:image-20220907171221-3.png]]
34 34  
35 35  
32 +
36 36  == ​1.2  Features ==
37 37  
38 38  
... ... @@ -53,6 +53,7 @@
53 53  (((
54 54  
55 55  
53 +
56 56  
57 57  )))
58 58  
... ... @@ -66,14 +66,15 @@
66 66  
67 67  (% style="color:#037691" %)**NB-IoT Spec:**
68 68  
69 -* B1 @H-FDD: 2100MHz
70 -* B3 @H-FDD: 1800MHz
71 -* B8 @H-FDD: 900MHz
72 -* B5 @H-FDD: 850MHz
73 -* B20 @H-FDD: 800MHz
74 -* B28 @H-FDD: 700MHz
67 +* - B1 @H-FDD: 2100MHz
68 +* - B3 @H-FDD: 1800MHz
69 +* - B8 @H-FDD: 900MHz
70 +* - B5 @H-FDD: 850MHz
71 +* - B20 @H-FDD: 800MHz
72 +* - B28 @H-FDD: 700MHz
75 75  
76 76  
75 +
77 77  == 1.4  Probe Specification ==
78 78  
79 79  
... ... @@ -94,6 +94,7 @@
94 94  * Length: 3.5 meters
95 95  
96 96  
96 +
97 97  == 1.5 ​ Applications ==
98 98  
99 99  
... ... @@ -100,6 +100,7 @@
100 100  * Smart Agriculture
101 101  
102 102  
103 +
103 103  == 1.6  Pin mapping and power on ==
104 104  
105 105  
... ... @@ -107,8 +107,10 @@
107 107  
108 108  **~ **
109 109  
111 +
110 110  = 2.  Use NLMS01 to communicate with IoT Server =
111 111  
114 +
112 112  == 2.1  How it works ==
113 113  
114 114  
... ... @@ -120,8 +120,10 @@
120 120  [[image:image-20220907171221-5.png]]
121 121  
122 122  
126 +
123 123  == 2.2 ​ Configure the NLMS01 ==
124 124  
129 +
125 125  === 2.2.1 Test Requirement ===
126 126  
127 127  
... ... @@ -137,6 +137,7 @@
137 137  [[image:image-20220907171221-6.png]] ​
138 138  
139 139  
145 +
140 140  === 2.2.2 Insert SIM card ===
141 141  
142 142  
... ... @@ -148,6 +148,7 @@
148 148  [[image:image-20220907171221-7.png]] ​
149 149  
150 150  
157 +
151 151  === 2.2.3 Connect USB – TTL to NLMS01 to configure it ===
152 152  
153 153  
... ... @@ -179,6 +179,7 @@
179 179  (% style="color:red" %)**Note: the valid AT Commands can be found at:  **(%%)[[**https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0**>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
180 180  
181 181  
189 +
182 182  === 2.2.4 Use CoAP protocol to uplink data ===
183 183  
184 184  
... ... @@ -201,6 +201,7 @@
201 201  [[image:image-20220907171221-10.png]] ​
202 202  
203 203  
212 +
204 204  === 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
205 205  
206 206  
... ... @@ -217,6 +217,7 @@
217 217  
218 218  ​
219 219  
229 +
220 220  === 2.2.6 Use MQTT protocol to uplink data ===
221 221  
222 222  
... ... @@ -241,6 +241,7 @@
241 241  MQTT protocol has a much higher power consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.
242 242  
243 243  
254 +
244 244  === 2.2.7 Use TCP protocol to uplink data ===
245 245  
246 246  
... ... @@ -268,6 +268,7 @@
268 268  (% style="color:red" %)**NOTE: By default, the device will send an uplink message every 2 hour. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).**
269 269  
270 270  
282 +
271 271  == 2.3  Uplink Payload ==
272 272  
273 273  
... ... @@ -276,9 +276,9 @@
276 276  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.
277 277  
278 278  
279 -(% border="1" style="background-color:#ffffcc; color:green; width:520px" %)
280 -|=(% scope="row" style="width: 50px;" %)**Size(bytes)**|(% style="width:40px" %)**8**|(% style="width:20px" %)**2**|(% style="width:20px" %)**2**|(% style="width:60px" %)**1**|(% style="width:20px" %)**1**|(% style="width:40px" %)**1**|(% style="width:40px" %)**2**|(% style="width:50px" %)**2**|(% style="width:50px" %)**4**|(% style="width:50px" %)**2**|(% style="width:40px" %)**2**|(% style="width:40px" %)**4**
281 -|=(% style="width: 96px;" %)**Value**|(% style="width:82px" %)Device ID|(% style="width:42px" %)Ver|(% style="width:48px" %)BAT|(% style="width:124px" %)Signal Strength|(% style="width:58px" %)MOD|(% style="width:82px" %)Interrupt|(% style="width:113px" %)Leaf moisture|(% style="width:134px" %)Leaf Temperature|(% style="width:100px" %)Time stamp|(% style="width:137px" %)Leaf Temperature|(% style="width:110px" %)Leaf moisture|(% style="width:122px" %)Time stamp  .....
291 +(% border="1" style="background-color:#ffffcc; color:green; width:1251px" %)
292 +|(% style="width:96px" %)**Size(bytes)**|(% style="width:82px" %)**8**|(% style="width:42px" %)**2**|(% style="width:48px" %)**2**|(% style="width:124px" %)1|(% style="width:58px" %)1|(% style="width:82px" %)1|(% style="width:113px" %)2|(% style="width:134px" %)2|(% style="width:100px" %)4|(% style="width:137px" %)2|(% style="width:110px" %)2|(% style="width:122px" %)4
293 +|(% style="width:96px" %)**Value**|(% style="width:82px" %)Device ID|(% style="width:42px" %)Ver|(% style="width:48px" %)BAT|(% style="width:124px" %)Signal Strength|(% style="width:58px" %)MOD|(% style="width:82px" %)Interrupt|(% style="width:113px" %)Leaf moisture|(% style="width:134px" %)Leaf Temperature|(% style="width:100px" %)Time stamp|(% style="width:137px" %)Leaf Temperature|(% style="width:110px" %)Leaf moisture|(% style="width:122px" %)Time stamp  .....
282 282  
283 283  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NLMS01 uplink data.
284 284  
... ... @@ -292,31 +292,23 @@
292 292  
293 293  where:
294 294  
295 -* (% style="color:#037691" %)**Device ID:**(%%) 0xf868411056754138 = f868411056754138
307 +* Device ID: 0xf868411056754138 = f868411056754138
308 +* Version: 0x0064=100=1.0.0
309 +* BAT: 0x0c78 = 3192 mV = 3.192V
310 +* Singal: 0x17 = 23
311 +* Mod: 0x01 = 1
312 +* Interrupt: 0x00= 0
313 +* Leaf moisture: 0x0225= 549 = 54.9%
314 +* Leaf Temperature:0x010B =267=26.7 °C
315 +* Time stamp : 0x6315537b =1662342011 ([[Unix Epoch Time>>https://www.epochconverter.com/]])
316 +* Leaf Temperature, Leaf moisture,Time stamp : 010b0226631550fb
317 +* 8 sets of recorded data: Leaf Temperature, Leaf moisture,Time stamp : 010e022663154d77,.......
296 296  
297 -* (% style="color:#037691" %)**Version:**(%%) 0x0064=100=1.0.0
298 298  
299 -* (% style="color:#037691" %)**BAT:**       (%%)0x0c78 = 3192 mV = 3.192V
300 300  
301 -* (% style="color:#037691" %)**Singal:**(%%)  0x17 = 23
302 -
303 -* (% style="color:#037691" %)**Mod:**(%%)  0x01 = 1
304 -
305 -* (% style="color:#037691" %)**Interrupt:**(%%) 0x00= 0
306 -
307 -* (% style="color:#037691" %)**Leaf moisture:**(%%) 0x0225= 549 = 54.9%
308 -
309 -* (% style="color:#037691" %)**Leaf Temperature: **(%%)0x010B =267=26.7 °C
310 -
311 -* (% style="color:#037691" %)**Time stamp :**   (%%)0x6315537b =1662342011 ([[Unix Epoch Time>>https://www.epochconverter.com/]])
312 -
313 -* (% style="color:#037691" %)**Leaf Temperature, Leaf moisture,Time stamp :  **(%%)010b0226631550fb
314 -
315 -* (% style="color:#037691" %)**8 sets of recorded data: **(%%)Leaf Temperature, Leaf moisture,Time stamp : 010e022663154d77,.......
316 -
317 -
318 318  == 2.4  Payload Explanation and Sensor Interface ==
319 319  
323 +
320 320  === 2.4.1  Device ID ===
321 321  
322 322  
... ... @@ -332,6 +332,7 @@
332 332  The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
333 333  
334 334  
339 +
335 335  === 2.4.2  Version Info ===
336 336  
337 337  
... ... @@ -340,6 +340,7 @@
340 340  For example: 0x00 64 : this device is NLMS01 with firmware version 1.0.0.
341 341  
342 342  
348 +
343 343  === 2.4.3  Battery Info ===
344 344  
345 345  
... ... @@ -350,6 +350,7 @@
350 350  Ex2: 0x0B49 = 2889mV
351 351  
352 352  
359 +
353 353  === 2.4.4  Signal Strength ===
354 354  
355 355  
... ... @@ -369,6 +369,7 @@
369 369  **99**    Not known or not detectable
370 370  
371 371  
379 +
372 372  === 2.4.5  Leaf moisture ===
373 373  
374 374  
... ... @@ -379,6 +379,7 @@
379 379  (% style="color:blue" %)**0229(H) = 549(D) /100 = 54.9.**
380 380  
381 381  
390 +
382 382  === 2.4.6  Leaf Temperature ===
383 383  
384 384  
... ... @@ -391,6 +391,7 @@
391 391  If payload is **FF7EH**: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
392 392  
393 393  
403 +
394 394  === 2.4.7  Timestamp ===
395 395  
396 396  
... ... @@ -399,6 +399,7 @@
399 399  Convert Unix timestamp to time 2022-9-5 9:40:11.
400 400  
401 401  
412 +
402 402  === 2.4.8  Digital Interrupt ===
403 403  
404 404  
... ... @@ -417,6 +417,7 @@
417 417  0x(01): Interrupt Uplink Packet.
418 418  
419 419  
431 +
420 420  === 2.4.9  ​+5V Output ===
421 421  
422 422  
... ... @@ -429,6 +429,7 @@
429 429  Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.** **
430 430  
431 431  
444 +
432 432  == 2.5  Downlink Payload ==
433 433  
434 434  
... ... @@ -461,6 +461,7 @@
461 461  Downlink Payload: 06000003, Set AT+INTMOD=3
462 462  
463 463  
477 +
464 464  == 2.6  ​LED Indicator ==
465 465  
466 466  
... ... @@ -472,6 +472,7 @@
472 472  * For each uplink probe, LED will be on for 500ms.
473 473  
474 474  
489 +
475 475  == 2.7  Installation ==
476 476  
477 477  
... ... @@ -481,6 +481,7 @@
481 481  [[image:image-20220907171221-19.png]]
482 482  
483 483  
499 +
484 484  == 2.8  Moisture and Temperature alarm function ==
485 485  
486 486  
... ... @@ -513,6 +513,7 @@
513 513  AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
514 514  
515 515  
532 +
516 516  == 2.9  Set the number of data to be uploaded and the recording time ==
517 517  
518 518  
... ... @@ -521,11 +521,8 @@
521 521  * (% style="color:#037691" %)**AT+TR=900**   (%%) ~/~/  The unit is seconds, and the default is to record data once every 900 seconds.( The minimum can be set to 180 seconds)
522 522  * (% style="color:#037691" %)**AT+NOUD=8**  (%%)~/~/  The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
523 523  
524 - The diagram below explains the relationship between TR, NOUD, and TDC more clearly**:**
525 525  
526 -[[image:image-20221009001002-1.png||height="706" width="982"]]
527 527  
528 -
529 529  == 2.10  Read or Clear cached data ==
530 530  
531 531  
... ... @@ -537,6 +537,7 @@
537 537  [[image:image-20220907171221-20.png]]
538 538  
539 539  
554 +
540 540  == 2.11  ​Firmware Change Log ==
541 541  
542 542  
... ... @@ -545,14 +545,61 @@
545 545  Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
546 546  
547 547  
548 -== 2.12 Battery & Power Consumption ==
549 549  
564 +== 2.12  ​Battery Analysis ==
550 550  
551 -NLMS01 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
552 552  
553 -[[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
567 +=== 2.12.1  ​Battery Type ===
554 554  
555 555  
570 +The NLMS01 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.
571 +
572 +The battery is designed to last for several years depends on the actually use environment and update interval. 
573 +
574 +The battery related documents as below:
575 +
576 +* [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
577 +* [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
578 +* [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
579 +
580 +[[image:image-20220907171221-21.png]] ​
581 +
582 +
583 +
584 +=== 2.12.2  Power consumption Analyze ===
585 +
586 +
587 +Dragino battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
588 +
589 +Instruction to use as below:
590 +
591 +(% style="color:blue" %)**Step 1:  **(%%)Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
592 +
593 +(% style="color:blue" %)**Step 2: **(%%) Open it and choose
594 +
595 +* Product Model
596 +* Uplink Interval
597 +* Working Mode
598 +
599 +And the Life expectation in difference case will be shown on the right.
600 +
601 +[[image:image-20220907171221-22.jpeg]] ​
602 +
603 +
604 +=== 2.12.3  ​Battery Note ===
605 +
606 +
607 +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 transmit LoRa, then the battery life may be decreased.
608 +
609 +
610 +
611 +=== 2.12.4  Replace the battery ===
612 +
613 +
614 +The default battery pack of NLMS01 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).
615 +
616 +
617 +
556 556  = 3. ​ Access NB-IoT Module =
557 557  
558 558  
... ... @@ -564,97 +564,101 @@
564 564  [[image:image-20220907171221-23.png]] ​
565 565  
566 566  
629 +
567 567  = 4.  Using the AT Commands =
568 568  
632 +
569 569  == 4.1  Access AT Commands ==
570 570  
571 571  
572 572  See this link for detail:  [[https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
573 573  
574 -AT+<CMD>?  :  Help on <CMD>
638 +AT+<CMD>?  : Help on <CMD>
575 575  
576 -AT+<CMD>  :  Run <CMD>
640 +AT+<CMD>         : Run <CMD>
577 577  
578 -AT+<CMD>=<value>:  Set the value
642 +AT+<CMD>=<value> : Set the value
579 579  
580 -AT+<CMD>=?  :  Get the value
644 +AT+<CMD>=?  : Get the value
581 581  
582 582  
583 583  (% style="color:#037691" %)**General Commands**      
584 584  
585 -AT  :  Attention       
649 +AT  : Attention       
586 586  
587 -AT?  :  Short Help     
651 +AT?  : Short Help     
588 588  
589 -ATZ  :  MCU Reset    
653 +ATZ  : MCU Reset    
590 590  
591 -AT+TDC  :  Application Data Transmission Interval
655 +AT+TDC  : Application Data Transmission Interval
592 592  
593 -AT+CFG  :  Print all configurations
657 +AT+CFG  : Print all configurations
594 594  
595 -AT+CFGMOD  :  Working mode selection
659 +AT+CFGMOD           : Working mode selection
596 596  
597 -AT+INTMOD  :  Set the trigger interrupt mode
661 +AT+INTMOD            : Set the trigger interrupt mode
598 598  
599 -AT+5VT  :  Set extend the time of 5V power  
663 +AT+5VT  : Set extend the time of 5V power  
600 600  
601 -AT+PRO :  Choose agreement
665 +AT+PRO  : Choose agreement
602 602  
603 -AT+RXDL:  Extend the sending and receiving time
667 +AT+RXDL  : Extend the sending and receiving time
604 604  
605 -AT+SERVADDR :  Server Address
669 +AT+SERVADDR  : Server Address
606 606  
607 -AT+APN :  Get or set the APN
671 +AT+APN     : Get or set the APN
608 608  
609 -AT+FBAND :  Get or Set whether to automatically modify the frequency band
673 +AT+FBAND   : Get or Set whether to automatically modify the frequency band
610 610  
611 -AT+DNSCFG : Get or Set DNS Server
675 +AT+DNSCFG  : Get or Set DNS Server
612 612  
613 613  AT+GETSENSORVALUE   : Returns the current sensor measurement
614 614  
615 -AT+TR :  Get or Set record time"
679 +AT+TR      : Get or Set record time"
616 616  
617 -AT+NOUD :  Get or Set the number of data to be uploaded
681 +AT+NOUD      : Get or Set the number of data to be uploaded
618 618  
619 -AT+CDP :  Read or Clear cached data
683 +AT+CDP     : Read or Clear cached data
620 620  
621 -AT+TEMPALARM :  Get or Set alarm of temp
685 +AT+TEMPALARM      : Get or Set alarm of temp
622 622  
623 -AT+HUMALARM :  Get or Set alarm of humidity
687 +AT+HUMALARM     : Get or Set alarm of humidity
624 624  
625 625  
626 626  (% style="color:#037691" %)**COAP Management**      
627 627  
628 -AT+URI :  Resource parameters
692 +AT+URI            : Resource parameters
629 629  
630 630  
631 631  (% style="color:#037691" %)**UDP Management**
632 632  
633 -AT+CFM :  Upload confirmation mode (only valid for UDP)
697 +AT+CFM          : Upload confirmation mode (only valid for UDP)
634 634  
635 635  
636 636  (% style="color:#037691" %)**MQTT Management**
637 637  
638 -AT+CLIENT  :  Get or Set MQTT client
702 +AT+CLIENT               : Get or Set MQTT client
639 639  
640 -AT+UNAME  : Get or Set MQTT Username
704 +AT+UNAME  : Get or Set MQTT Username
641 641  
642 -AT+PWD  :  Get or Set MQTT password
706 +AT+PWD                  : Get or Set MQTT password
643 643  
644 -AT+PUBTOPIC  :  Get or Set MQTT publish topic
708 +AT+PUBTOPIC  : Get or Set MQTT publish topic
645 645  
646 -AT+SUBTOPIC :  Get or Set MQTT subscription topic
710 +AT+SUBTOPIC  : Get or Set MQTT subscription topic
647 647  
648 648  
649 649  (% style="color:#037691" %)**Information**          
650 650  
651 -AT+FDR :  Factory Data Reset
715 +AT+FDR  : Factory Data Reset
652 652  
653 -AT+PWORD :  Serial Access Password
717 +AT+PWORD  : Serial Access Password
654 654  
655 655  
720 +
656 656  = ​5.  FAQ =
657 657  
723 +
658 658  == 5.1 ​ How to Upgrade Firmware ==
659 659  
660 660  
... ... @@ -666,8 +666,10 @@
666 666  (% style="color:red" %)**Notice, NLMS01 and LLMS01 share the same mother board. They use the same connection and method to update.**
667 667  
668 668  
735 +
669 669  = 6.  Trouble Shooting =
670 670  
738 +
671 671  == 6.1  ​Connection problem when uploading firmware ==
672 672  
673 673  
... ... @@ -674,6 +674,7 @@
674 674  **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]]
675 675  
676 676  
745 +
677 677  == 6.2  AT Command input doesn't work ==
678 678  
679 679  
... ... @@ -680,12 +680,7 @@
680 680  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.
681 681  
682 682  
683 -== 6.3 Not able to connect to NB-IoT network and keep showing "Signal Strength:99". ==
684 684  
685 -
686 -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]]//**.
687 -
688 -
689 689  = 7. ​ Order Info =
690 690  
691 691  
... ... @@ -692,6 +692,7 @@
692 692  Part Number**:** NLMS01
693 693  
694 694  
759 +
695 695  = 8.  Packing Info =
696 696  
697 697  
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