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1 (% style="text-align:center" %)
2 [[image:image-20220709085040-1.png||height="542" width="524"]]
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6
7
8 **Table of Contents:**
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13
14
15
16 = 1.  Introduction =
17
18 == 1.1 ​ What is NDDS75 Distance Detection Sensor ==
19
20 (((
21
22
23 (((
24 The Dragino NDDS75 is a (% style="color:blue" %)**NB-IoT Distance Detection Sensor**(%%) for Internet of Things solution. It is designed to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses ultrasonic sensing technology for distance measurement, and temperature compensation is performed internally to improve the reliability of data.
25 \\The NDDS75 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc. It detects the distance between the measured object and the sensor, and uploads the value via wireless to IoT Server via NB-IoT Network.
26 \\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.
27 \\NDDS75 supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP** (%%)for different application requirement.
28 \\NDDS75 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)
29 \\To use NDDS75, user needs to check if there is NB-IoT coverage in local area and with the bands NDDS75 supports. If the local operate support it, user needs to get a NB-IoT SIM card from local operator and install NDDS75 to get NB-IoT network connection.
30 )))
31
32
33 )))
34
35 [[image:1654503236291-817.png]]
36
37
38 [[image:1657327959271-447.png]]
39
40
41
42 == 1.2 ​ Features ==
43
44
45 * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
46 * Ultra low power consumption
47 * Distance Detection by Ultrasonic technology
48 * Flat object range 280mm - 7500mm
49 * Accuracy: ±(1cm+S*0.3%) (S: Distance)
50 * Cable Length: 25cm
51 * AT Commands to change parameters
52 * Uplink on periodically
53 * Downlink to change configure
54 * IP66 Waterproof Enclosure
55 * Micro SIM card slot for NB-IoT SIM
56 * 8500mAh Battery for long term use
57
58
59 == 1.3  Specification ==
60
61
62 (% style="color:#037691" %)**Common DC Characteristics:**
63
64 * Supply Voltage: 2.1v ~~ 3.6v
65 * Operating Temperature: -40 ~~ 85°C
66
67 (% style="color:#037691" %)**NB-IoT Spec:**
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
75
76 (% style="color:#037691" %)**Battery:**
77
78 * Li/SOCI2 un-chargeable battery
79 * Capacity: 8500mAh
80 * Self Discharge: <1% / Year @ 25°C
81 * Max continuously current: 130mA
82 * Max boost current: 2A, 1 second
83
84 (% style="color:#037691" %)**Power Consumption**
85
86 * STOP Mode: 10uA @ 3.3v
87 * Max transmit power: [[350mA@3.3v>>mailto:350mA@3.3v]]
88
89
90
91 == ​1.4  Applications ==
92
93 * Smart Buildings & Home Automation
94 * Logistics and Supply Chain Management
95 * Smart Metering
96 * Smart Agriculture
97 * Smart Cities
98 * Smart Factory
99
100 (% class="wikigeneratedid" id="H200B1.5FirmwareChangelog" %)
101
102
103
104
105 == 1.5  Pin Definitions ==
106
107
108 [[image:1657328609906-564.png]]
109
110
111
112 = 2.  Use NDDS75 to communicate with IoT Server =
113
114 == 2.1  How it works ==
115
116 (((
117 The NDDS75 is equipped with a NB-IoT module, the pre-loaded firmware in NDDS75 will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by NDDS75.
118 )))
119
120
121 (((
122 The diagram below shows the working flow in default firmware of NDDS75:
123 )))
124
125 (((
126
127 )))
128
129 [[image:1657328659945-416.png]]
130
131 (((
132
133 )))
134
135
136 == 2.2 ​ Configure the NDDS75 ==
137
138
139 === 2.2.1 Test Requirement ===
140
141 (((
142 To use NDDS75 in your city, make sure meet below requirements:
143 )))
144
145 * Your local operator has already distributed a NB-IoT Network there.
146 * The local NB-IoT network used the band that NSE01 supports.
147 * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
148
149 (((
150 Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NDDS75 will use CoAP((% style="color:red" %)120.24.4.116:5683)(%%) or raw UDP((% style="color:red" %)120.24.4.116:5601)(%%) or MQTT((% style="color:red" %)120.24.4.116:1883)(%%)or TCP((% style="color:red" %)120.24.4.116:5600)(%%)protocol to send data to the test server
151 )))
152
153
154 [[image:1657328756309-230.png]]
155
156
157
158 === 2.2.2 Insert SIM card ===
159
160 (((
161 Insert the NB-IoT Card get from your provider.
162 )))
163
164 (((
165 User need to take out the NB-IoT module and insert the SIM card like below:
166 )))
167
168
169 [[image:1657328884227-504.png]]
170
171
172
173 === 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
174
175 (((
176 (((
177 User need to configure NDDS75 via serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. NDDS75 support AT Commands, user can use a USB to TTL adapter to connect to NDDS75 and use AT Commands to configure it, as below.
178 )))
179 )))
180
181 [[image:image-20220709092052-2.png]]
182
183 **Connection:**
184
185 (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
186
187 (% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD
188
189 (% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD
190
191
192 In the PC, use below serial tool settings:
193
194 * Baud:  (% style="color:green" %)**9600**
195 * Data bits:** (% style="color:green" %)8(%%)**
196 * Stop bits: (% style="color:green" %)**1**
197 * Parity:  (% style="color:green" %)**None**
198 * Flow Control: (% style="color:green" %)**None**
199
200 (((
201 Make sure the switch is in FLASH position, then power on device by connecting the jumper on NDDS75. NDDS75 will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
202 )))
203
204 [[image:1657329814315-101.png]]
205
206 (((
207 (% style="color:red" %)Note: the valid AT Commands can be found at: (%%)[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/]]
208 )))
209
210
211
212 === 2.2.4 Use CoAP protocol to uplink data ===
213
214 (% 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/]]
215
216
217 **Use below commands:**
218
219 * (% style="color:blue" %)**AT+PRO=1**  (%%) ~/~/ Set to use CoAP protocol to uplink
220 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/ to set CoAP server address and port
221 * (% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
222
223 For parameter description, please refer to AT command set
224
225 [[image:1657330452568-615.png]]
226
227
228 After configure the server address and (% style="color:green" %)**reset the device**(%%) (via AT+ATZ ), NDDS75 will start to uplink sensor values to CoAP server.
229
230 [[image:1657330472797-498.png]]
231
232
233
234 === 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
235
236
237 * (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink
238 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
239 * (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/If the server does not respond, this command is unnecessary
240
241 [[image:1657330501006-241.png]]
242
243
244 [[image:1657330533775-472.png]]
245
246
247
248 === 2.2.6 Use MQTT protocol to uplink data ===
249
250
251 * (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
252 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
253 * (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
254 * (% style="color:blue" %)**AT+UNAME=UNAME                               **(%%)~/~/Set the username of MQTT
255 * (% style="color:blue" %)**AT+PWD=PWD                                        **(%%)~/~/Set the password of MQTT
256 * (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/Set the sending topic of MQTT
257 * (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/Set the subscription topic of MQTT
258
259 [[image:1657249978444-674.png]]
260
261
262 [[image:1657330723006-866.png]]
263
264
265 (((
266 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.
267 )))
268
269
270
271 === 2.2.7 Use TCP protocol to uplink data ===
272
273
274 * (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/ Set to use TCP protocol to uplink
275 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/ to set TCP server address and port
276
277 [[image:image-20220709093918-1.png]]
278
279
280 [[image:image-20220709093918-2.png]]
281
282
283
284 === 2.2.8 Change Update Interval ===
285
286 User can use below command to change the (% style="color:green" %)**uplink interval**.
287
288 * (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
289
290 (((
291 (% style="color:red" %)**NOTE:**
292 )))
293
294 (((
295 (% style="color:red" %)1. By default, the device will send an uplink message every 1 hour.
296 )))
297
298
299
300 == 2.3  Uplink Payload ==
301
302 In this mode, uplink payload includes in total 14 bytes
303
304
305 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
306 |=(% style="width: 60px;" %)(((
307 **Size(bytes)**
308 )))|=(% style="width: 50px;" %)**6**|=(% style="width: 25px;" %)2|=(% style="width: 25px;" %)**2**|=(% style="width: 70px;" %)**1**|=(% style="width: 60px;" %)**2**|=(% style="width: 50px;" %)**1**
309 |(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:41px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:108px" %)[[Distance (unit: mm)>>||anchor="H2.4.5A0SoilMoisture"]]|(% style="width:80px" %)[[Interrupt>>||anchor="H2.4.8A0DigitalInterrupt"]]
310
311 (((
312 If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS751 uplink data.
313 )))
314
315
316 [[image:1657331036973-987.png]]
317
318 (((
319 The payload is ASCII string, representative same HEX:
320 )))
321
322 (((
323 0x72403155615900640c6c19029200 where:
324 )))
325
326 * (((
327 Device ID: 0x724031556159 = 724031556159
328 )))
329 * (((
330 Version: 0x0064=100=1.0.0
331 )))
332
333 * (((
334 BAT: 0x0c6c = 3180 mV = 3.180V
335 )))
336 * (((
337 Signal: 0x19 = 25
338 )))
339 * (((
340 Distance: 0x0292= 658 mm
341 )))
342 * (((
343 Interrupt: 0x00 = 0
344 )))
345
346
347 == 2.4  Payload Explanation and Sensor Interface ==
348
349
350 === 2.4.1  Device ID ===
351
352 (((
353 By default, the Device ID equal to the last 6 bytes of IMEI.
354 )))
355
356 (((
357 User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
358 )))
359
360 (((
361 **Example:**
362 )))
363
364 (((
365 AT+DEUI=A84041F15612
366 )))
367
368 (((
369 The Device ID is stored in a none-erase area, Upgrade the firmware or run **AT+FDR** won't erase Device ID.
370 )))
371
372
373
374 === 2.4.2  Version Info ===
375
376 (((
377 Specify the software version: 0x64=100, means firmware version 1.00.
378 )))
379
380 (((
381 For example: 0x00 64 : this device is NDDS75 with firmware version 1.0.0.
382 )))
383
384
385
386 === 2.4.3  Battery Info ===
387
388 (((
389 Check the battery voltage for LSE01.
390 )))
391
392 (((
393 Ex1: 0x0B45 = 2885mV
394 )))
395
396 (((
397 Ex2: 0x0B49 = 2889mV
398 )))
399
400
401
402 === 2.4.4  Signal Strength ===
403
404 (((
405 NB-IoT Network signal Strength.
406 )))
407
408 (((
409 **Ex1: 0x1d = 29**
410 )))
411
412 (((
413 (% style="color:blue" %)**0**(%%)  -113dBm or less
414 )))
415
416 (((
417 (% style="color:blue" %)**1**(%%)  -111dBm
418 )))
419
420 (((
421 (% style="color:blue" %)**2...30**(%%) -109dBm... -53dBm
422 )))
423
424 (((
425 (% style="color:blue" %)**31**  (%%) -51dBm or greater
426 )))
427
428 (((
429 (% style="color:blue" %)**99**   (%%) Not known or not detectable
430 )))
431
432
433
434 === 2.4.5  Soil Moisture ===
435
436 Get the distance. Flat object range 280mm - 7500mm.
437
438 For example, if the data you get from the register is **__0x0B 0x05__**, the distance between the sensor and the measured object is
439
440 (((
441 (((
442 (% style="color:blue" %)** 0B05(H) = 2821(D) = 2821mm.**
443 )))
444 )))
445
446 (((
447
448 )))
449
450 (((
451
452 )))
453
454 === 2.4.6  Digital Interrupt ===
455
456 (((
457 Digital Interrupt refers to pin (% style="color:blue" %)**GPIO_EXTI**(%%), and there are different trigger methods. When there is a trigger, the NDDS75 will send a packet to the server.
458 )))
459
460 (((
461 The command is:
462 )))
463
464 (((
465 (% style="color:blue" %)**AT+INTMOD=3 **(%%) ~/~/(more info about INMOD please refer [[**AT Command Manual**>>url:https://www.dragino.com/downloads/downloads/NB-IoT/NBSN95/DRAGINO_NBSN95-NB_AT%20Commands_v1.1.0.pdf]])**.**
466 )))
467
468
469 (((
470 The lower four bits of this data field shows if this packet is generated by interrupt or not. Click here for the hardware and software set up.
471 )))
472
473
474 (((
475 Example:
476 )))
477
478 (((
479 0x(00): Normal uplink packet.
480 )))
481
482 (((
483 0x(01): Interrupt Uplink Packet.
484 )))
485
486
487
488 === 2.4.7  ​+5V Output ===
489
490 (((
491 NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling. 
492 )))
493
494
495 (((
496 The 5V output time can be controlled by AT Command.
497 )))
498
499 (((
500 (% style="color:blue" %)**AT+5VT=1000**
501 )))
502
503 (((
504 Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
505 )))
506
507
508
509 == 2.5  Downlink Payload ==
510
511 By default, NDDS75 prints the downlink payload to console port.
512
513 [[image:image-20220709100028-1.png]]
514
515
516 (((
517 (% style="color:blue" %)**Examples:**
518 )))
519
520 (((
521
522 )))
523
524 * (((
525 (% style="color:blue" %)**Set TDC**
526 )))
527
528 (((
529 If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
530 )))
531
532 (((
533 Payload:    01 00 00 1E    TDC=30S
534 )))
535
536 (((
537 Payload:    01 00 00 3C    TDC=60S
538 )))
539
540 (((
541
542 )))
543
544 * (((
545 (% style="color:blue" %)**Reset**
546 )))
547
548 (((
549 If payload = 0x04FF, it will reset the NDDS75
550 )))
551
552
553 * (% style="color:blue" %)**INTMOD**
554
555 (((
556 Downlink Payload: 06000003, Set AT+INTMOD=3
557 )))
558
559
560
561 == 2.6  ​LED Indicator ==
562
563
564 The NDDS75 has an internal LED which is to show the status of different state.
565
566
567 * When power on, NDDS75 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe)
568 * Then the LED will be on for 1 second means device is boot normally.
569 * After NDDS75 join NB-IoT network. The LED will be ON for 3 seconds.
570 * For each uplink probe, LED will be on for 500ms.
571
572 (((
573
574 )))
575
576
577
578 == 2.7  ​Firmware Change Log ==
579
580
581 Download URL & Firmware Change log
582
583 (((
584 [[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/]]
585 )))
586
587
588 Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
589
590
591
592 == 2.9  ​Battery Analysis ==
593
594 === 2.9.1  ​Battery Type ===
595
596
597 (((
598 The NSE01 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.
599 )))
600
601
602 (((
603 The battery is designed to last for several years depends on the actually use environment and update interval. 
604 )))
605
606
607 (((
608 The battery related documents as below:
609 )))
610
611 * [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
612 * [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
613 * [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
614
615 (((
616 [[image:image-20220708140453-6.png]]
617 )))
618
619
620
621 === 2.9.2  Power consumption Analyze ===
622
623 (((
624 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.
625 )))
626
627
628 (((
629 Instruction to use as below:
630 )))
631
632 (((
633 (% 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/]]
634 )))
635
636
637 (((
638 (% style="color:blue" %)**Step 2: **(%%) Open it and choose
639 )))
640
641 * (((
642 Product Model
643 )))
644 * (((
645 Uplink Interval
646 )))
647 * (((
648 Working Mode
649 )))
650
651 (((
652 And the Life expectation in difference case will be shown on the right.
653 )))
654
655 [[image:image-20220708141352-7.jpeg]]
656
657
658
659 === 2.9.3  ​Battery Note ===
660
661 (((
662 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.
663 )))
664
665
666
667 === 2.9.4  Replace the battery ===
668
669 (((
670 The default battery pack of NSE01 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).
671 )))
672
673
674
675 = 3. ​ Access NB-IoT Module =
676
677 (((
678 Users can directly access the AT command set of the NB-IoT module.
679 )))
680
681 (((
682 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/]] 
683 )))
684
685 [[image:1657261278785-153.png]]
686
687
688
689 = 4.  Using the AT Commands =
690
691 == 4.1  Access AT Commands ==
692
693 See this link for detail: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NSE01/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/]]
694
695
696 AT+<CMD>?  : Help on <CMD>
697
698 AT+<CMD>         : Run <CMD>
699
700 AT+<CMD>=<value> : Set the value
701
702 AT+<CMD>=?  : Get the value
703
704
705 (% style="color:#037691" %)**General Commands**(%%)      
706
707 AT  : Attention       
708
709 AT?  : Short Help     
710
711 ATZ  : MCU Reset    
712
713 AT+TDC  : Application Data Transmission Interval
714
715 AT+CFG  : Print all configurations
716
717 AT+CFGMOD           : Working mode selection
718
719 AT+INTMOD            : Set the trigger interrupt mode
720
721 AT+5VT  : Set extend the time of 5V power  
722
723 AT+PRO  : Choose agreement
724
725 AT+WEIGRE  : Get weight or set weight to 0
726
727 AT+WEIGAP  : Get or Set the GapValue of weight
728
729 AT+RXDL  : Extend the sending and receiving time
730
731 AT+CNTFAC  : Get or set counting parameters
732
733 AT+SERVADDR  : Server Address
734
735
736 (% style="color:#037691" %)**COAP Management**      
737
738 AT+URI            : Resource parameters
739
740
741 (% style="color:#037691" %)**UDP Management**
742
743 AT+CFM          : Upload confirmation mode (only valid for UDP)
744
745
746 (% style="color:#037691" %)**MQTT Management**
747
748 AT+CLIENT               : Get or Set MQTT client
749
750 AT+UNAME  : Get or Set MQTT Username
751
752 AT+PWD                  : Get or Set MQTT password
753
754 AT+PUBTOPIC  : Get or Set MQTT publish topic
755
756 AT+SUBTOPIC  : Get or Set MQTT subscription topic
757
758
759 (% style="color:#037691" %)**Information**          
760
761 AT+FDR  : Factory Data Reset
762
763 AT+PWORD  : Serial Access Password
764
765
766
767 = ​5.  FAQ =
768
769 == 5.1 ​ How to Upgrade Firmware ==
770
771
772 (((
773 User can upgrade the firmware for 1) bug fix, 2) new feature release.
774 )))
775
776 (((
777 Please see this link for how to upgrade:  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList>>http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList]]
778 )))
779
780 (((
781 (% style="color:red" %)Notice, NSE01 and LSE01 share the same mother board. They use the same connection and method to update.
782 )))
783
784
785
786 == 5.2  Can I calibrate NSE01 to different soil types? ==
787
788 (((
789 NSE01 is calibrated for saline-alkali soil and loamy soil. If users want to use it for other soil, they can calibrate the value in the IoT platform base on the value measured by saline-alkali soil and loamy soil. The formula can be found at [[this link>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/LSE01/Calibrate_to_other_Soil_20220605.pdf]].
790 )))
791
792
793 = 6.  Trouble Shooting =
794
795 == 6.1  ​Connection problem when uploading firmware ==
796
797
798 (((
799 **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]]
800 )))
801
802 (% class="wikigeneratedid" %)
803 (((
804
805 )))
806
807
808 == 6.2  AT Command input doesn't work ==
809
810 (((
811 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.
812
813
814 )))
815
816
817 = 7. ​ Order Info =
818
819
820 Part Number**:** (% style="color:#4f81bd" %)**NSE01**
821
822
823 (% class="wikigeneratedid" %)
824 (((
825
826 )))
827
828 = 8.  Packing Info =
829
830 (((
831
832
833 (% style="color:#037691" %)**Package Includes**:
834
835 * NSE01 NB-IoT Soil Moisture & EC Sensor x 1
836 * External antenna x 1
837 )))
838
839 (((
840
841
842 (% style="color:#037691" %)**Dimension and weight**:
843
844 * Size: 195 x 125 x 55 mm
845 * Weight:   420g
846 )))
847
848 (((
849
850
851
852
853 )))
854
855 = 9.  Support =
856
857 * 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.
858 * 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]]
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