Version 27.1 by David Huang on 2022/09/07 17:44
Show last authors
1 [[image:image-20220907171221-1.jpeg]]​
2
3
4
5 = 1. Introduction =
6
7 == 1.1 ​What is NLMS01 Leaf Moisture Sensor ==
8
9
10 The Dragino NLMS01 is a **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.
11
12 NLMS01 detects leaf's** 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.
13
14 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.
15 \\NLMS01 supports different uplink methods include **TCP,MQTT,UDP and CoAP  **for different application requirement.
16 \\NLMS01 is powered by  **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)
17 \\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 **NB-IoT SIM card** from local operator and install NLMS01 to get NB-IoT network connection
18
19 ​[[image:image-20220907171221-2.png]]
20
21 ​ [[image:image-20220907171221-3.png]]
22
23 == ​1.2 Features ==
24
25 * (((
26 NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
27 )))
28 * (((
29 Monitor Leaf moisture
30 )))
31
32 * (((
33 Monitor Leaf temperature
34 )))
35
36 * (((
37 Moisture and Temperature alarm function
38 )))
39 * (((
40 Monitor Battery Level
41 )))
42 * (((
43 Uplink on periodically
44 )))
45 * (((
46 Downlink to change configure
47 )))
48 * (((
49 IP66 Waterproof Enclosure
50 )))
51 * (((
52 IP67 rate for the Sensor Probe
53 )))
54 * (((
55 Ultra-Low Power consumption
56 )))
57 * (((
58 AT Commands to change parameters
59 )))
60 * (((
61 Micro SIM card slot for NB-IoT SIM
62 )))
63 * (((
64 8500mAh Battery for long term use
65 )))
66
67 == 1.3  Specification ==
68
69 **Common DC Characteristics:**
70
71 * Supply Voltage: 2.1v ~~ 3.6v
72 * Operating Temperature: -40 ~~ 85°C
73
74 **NB-IoT Spec:**
75
76 * - B1 @H-FDD: 2100MHz
77 * - B3 @H-FDD: 1800MHz
78 * - B8 @H-FDD: 900MHz
79 * - B5 @H-FDD: 850MHz
80 * - B20 @H-FDD: 800MHz
81 * - B28 @H-FDD: 700MHz
82
83 == 1.4 Probe Specification ==
84
85
86 **Leaf Moisture: percentage of water drop over total leaf surface**
87
88 * Range 0-100%
89 * Resolution: 0.1%
90 * Accuracy: ±3%（0-50%）；±6%（>50%）
91 * IP67 Protection
92 * Length: 3.5 meters
93
94 **Leaf Temperature:**
95
96 * Range -50℃～80℃
97 * Resolution: 0.1℃
98 * Accuracy: <±0.5℃(-10℃～70℃)，<±1.0℃ (others)
99 * IP67 Protection
100 * Length: 3.5 meters
101
102 == 1.5 ​Applications ==
103
104 * Smart Agriculture
105
106 == 1.6 Pin mapping and power on ==
107
108 ​[[image:image-20220907171221-4.png]]
109
110 **~ **
111
112 = 2.  Use NLMS01 to communicate with IoT Server =
113
114 == 2.1  How it works ==
115
116 The NLMS01 is equipped with a NB-IoT module, the pre-loaded firmware in NLMS01 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 NLMS01.
117
118 The diagram below shows the working flow in default firmware of NLMS01:
119
120 [[image:image-20220907171221-5.png]]
121
122 == 2.2 ​ Configure the NLMS01 ==
123
124 === 2.2.1 Test Requirement ===
125
126 To use NLMS01 in your city, make sure meet below requirements:
127
128 * Your local operator has already distributed a NB-IoT Network there.
129 * The local NB-IoT network used the band that NLMS01 supports.
130 * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
131
132 Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NLMS01 will use CoAP(120.24.4.116:5683) or raw UDP(120.24.4.116:5601) or MQTT(120.24.4.116:1883)or TCP(120.24.4.116:5600)protocol to send data to the test server
133
134 [[image:image-20220907171221-6.png]] ​
135
136 === 2.2.2 Insert SIM card ===
137
138 Insert the NB-IoT Card get from your provider.
139
140 User need to take out the NB-IoT module and insert the SIM card like below:
141
142 [[image:image-20220907171221-7.png]] ​
143
144 === 2.2.3 Connect USB – TTL to NLMS01 to configure it ===
145
146 User need to configure NLMS01 via serial port to set the **Server Address** / **Uplink Topic** to define where and how-to uplink packets. NLMS01 support AT Commands, user can use a USB to TTL adapter to connect to NLMS01 and use AT Commands to configure it, as below.
147
148 **Connection:**
149
150 USB TTL GND <~-~-~-~-> GND
151
152 USB TTL TXD <~-~-~-~-> UART_RXD
153
154 USB TTL RXD <~-~-~-~-> UART_TXD
155
156 In the PC, use below serial tool settings:
157
158 * Baud:  **9600**
159 * Data bits:** 8**
160 * Stop bits: **1**
161 * Parity:  **None**
162 * Flow Control: **None**
163
164 Make sure the switch is in FLASH position, then power on device by connecting the jumper on NLMS01. NLMS01 will output system info once power on as below, we can enter the **password: 12345678** to access AT Command input.
165
166 ​[[image:image-20220907171221-8.png]]
167
168 **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]]
169
170 === 2.2.4 Use CoAP protocol to uplink data ===
171
172 **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/**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
173
174 **Use below commands:**
175
176 * **AT+PRO=1**   ~/~/ Set to use CoAP protocol to uplink
177 * **AT+SERVADDR=120.24.4.116,5683   ** ~/~/ to set CoAP server address and port
178 * **AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** ~/~/Set COAP resource path
179
180 For parameter description, please refer to AT command set
181
182 [[image:image-20220907171221-9.png]]
183
184 After configure the server address and **reset the device** (via AT+ATZ ), NLMS01 will start to uplink sensor values to CoAP server.
185
186 [[image:image-20220907171221-10.png]] ​
187
188 === 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
189
190 This feature is supported since firmware version v1.0.1
191
192 * **AT+PRO=2   ** ~/~/ Set to use UDP protocol to uplink
193 * **AT+SERVADDR=120.24.4.116,5601   ** ~/~/ to set UDP server address and port
194 * **AT+CFM=1       ** ~/~/If the server does not respond, this command is unnecessary
195
196 ​ [[image:image-20220907171221-11.png]]
197
198 [[image:image-20220907171221-12.png]]
199
200 ​
201
202 === 2.2.6 Use MQTT protocol to uplink data ===
203
204 This feature is supported since firmware version v110
205
206 * **AT+PRO=3   ** ~/~/Set to use MQTT protocol to uplink
207 * **AT+SERVADDR=120.24.4.116,1883   ** ~/~/Set MQTT server address and port
208 * **AT+CLIENT=CLIENT       ** ~/~/Set up the CLIENT of MQTT
209 * **AT+UNAME=UNAME                               **~/~/Set the username of MQTT
210 * **AT+PWD=PWD                                        **~/~/Set the password of MQTT
211 * **AT+PUBTOPIC=PUB                    **~/~/Set the sending topic of MQTT
212 * **AT+SUBTOPIC=SUB          ** ~/~/Set the subscription topic of MQTT
213
214 ​ [[image:image-20220907171221-13.png]]
215
216 [[image:image-20220907171221-14.png]]
217
218 ​
219
220 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.
221
222 === 2.2.7 Use TCP protocol to uplink data ===
223
224 This feature is supported since firmware version v110
225
226 * **AT+PRO=4   ** ~/~/ Set to use TCP protocol to uplink
227 * **AT+SERVADDR=120.24.4.116,5600   ** ~/~/ to set TCP server address and port
228
229 ​ [[image:image-20220907171221-15.png]]
230
231 [[image:image-20220907171221-16.png]]
232
233 ​
234
235 === 2.2.8 Change Update Interval ===
236
237 User can use below command to change the **uplink interval**.
238
239 * **AT+TDC=600      ** ~/~/ Set Update Interval to 600s
240
241 **NOTE:**
242
243 **~1. By default, the device will send an uplink message every 2 hour.**
244
245 == 2.3  Uplink Payload ==
246
247 In this mode, uplink payload includes 87 bytes in total by default.
248
249 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.
250
251 |**Size(bytes)**|**8**|**2**|**2**|1|1|1|2|2|4|2|2|4
252 |**Value**|Device ID|Ver|BAT|Signal Strength|MOD|Interrupt|Leaf moisture|Leaf Temperature|Time stamp|Leaf Temperature|Leaf moisture|Time stamp  .....
253
254 If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NLMS01 uplink data.
255
256 [[image:image-20220907171221-17.png]]
257
258 The payload is ASCII string, representative same HEX:
259
260 0xf86841105675413800640c781701000225010b6315537b010b0226631550fb010e022663154d7701110225631549f1011502246315466b01190223631542e5011d022163153f62011e022163153bde011e022163153859 where:
261
262 * Device ID: 0xf868411056754138 = f868411056754138
263 * Version: 0x0064=100=1.0.0
264
265 * BAT: 0x0c78 = 3192 mV = 3.192V
266 * Singal: 0x17 = 23
267 * Mod: 0x01 = 1
268 * Interrupt: 0x00= 0
269 * Leaf moisture: 0x0225= 549 = 54.9%
270 * Leaf Temperature:0x010B =267=26.7 °C
271 * Time stamp : 0x6315537b =1662342011
272 * Leaf Temperature, Leaf moisture,Time stamp : 010b0226631550fb
273 * 8 sets of recorded data: Leaf Temperature, Leaf moisture,Time stamp : 010e022663154d77,.......
274
275 == 2.4  Payload Explanation and Sensor Interface ==
276
277 === 2.4.1  Device ID ===
278
279 By default, the Device ID equal to the last 15 bits of IMEI.
280
281 User can use **AT+DEUI** to set Device ID
282
283 **Example:**
284
285 AT+DEUI=868411056754138
286
287 The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
288
289 === 2.4.2  Version Info ===
290
291 Specify the software version: 0x64=100, means firmware version 1.00.
292
293 For example: 0x00 64 : this device is NLMS01 with firmware version 1.0.0.
294
295 === 2.4.3  Battery Info ===
296
297 Check the battery voltage for NLMS01.
298
299 Ex1: 0x0B45 = 2885mV
300
301 Ex2: 0x0B49 = 2889mV
302
303 === 2.4.4  Signal Strength ===
304
305 NB-IoT Network signal Strength.
306
307 **Ex1: 0x1d = 29**
308
309 **0**  -113dBm or less
310
311 **1**  -111dBm
312
313 **2...30** -109dBm... -53dBm
314
315 **31**   -51dBm or greater
316
317 **99**    Not known or not detectable
318
319 === 2.4.5  Leaf moisture ===
320
321 Get the moisture of the **Leaf**. The value range of the register is 300-1000(Decimal), divide this value by 100 to get the percentage of moisture in the **Leaf**.
322
323 For example, if the data you get from the register is **__0x05 0xDC__**, the moisture content in the **Leaf** is
324
325 **0229(H) = 549(D) /100 = 54.9.**
326
327 === 2.4.6  Leaf Temperature ===
328
329 Get the temperature in the **Leaf**. The value range of the register is -4000 - +800(Decimal), divide this value by 100 to get the temperature in the **Leaf**. For example, if the data you get from the register is **__0x09 0xEC__**, the temperature content in the **Leaf **is
330
331 **Example**:
332
333 If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
334
335 If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
336
337 === 2.4.7  Timestamp ===
338
339 Time stamp : 0x6315537b =1662342011
340
341 Convert Unix timestamp to time 2022-9-5 9:40:11.
342
343 === 2.4.8  Digital Interrupt ===
344
345 Digital Interrupt refers to pin **GPIO_EXTI**, and there are different trigger methods. When there is a trigger, the NLMS01 will send a packet to the server.
346
347 The command is:
348
349 **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]])**.**
350
351 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.
352
353 Example:
354
355 0x(00): Normal uplink packet.
356
357 0x(01): Interrupt Uplink Packet.
358
359 === 2.4.9  ​+5V Output ===
360
361 NLMS01 will enable +5V output before all sampling and disable the +5v after all sampling. 
362
363 The 5V output time can be controlled by AT Command.
364
365 **AT+5VT=1000**
366
367 Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.** **
368
369
370 == 2.5  Downlink Payload ==
371
372 By default, NLMS01 prints the downlink payload to console port.
373
374 [[image:image-20220907171221-18.png]] ​
375
376 **Examples:**
377
378 * **Set TDC**
379
380 If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
381
382 Payload:    01 00 00 1E    TDC=30S
383
384 Payload:    01 00 00 3C    TDC=60S
385
386 * **Reset**
387
388 If payload = 0x04FF, it will reset the NLMS01
389
390 * **INTMOD**
391
392 Downlink Payload: 06000003, Set AT+INTMOD=3
393
394 == 2.6  ​LED Indicator ==
395
396 The NLMS01 has an internal LED which is to show the status of different state.
397
398 * When power on, NLMS01 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe)
399 * Then the LED will be on for 1 second means device is boot normally.
400 * After NLMS01 join NB-IoT network. The LED will be ON for 3 seconds.
401 * For each uplink probe, LED will be on for 500ms.
402
403 == 2.7 Installation ==
404
405 NLMS01 probe has two sides. The side without words are the sense side. Please be ware when install the sensor.
406
407 [[image:image-20220907171221-19.png]]
408
409 == 2.8 Moisture and Temperature alarm function ==
410
411 ➢ AT Command:
412
413 AT+ HUMALARM =min,max
414
415 ² When min=0, and max≠0, Alarm higher than max
416
417 ² When min≠0, and max=0, Alarm lower than min
418
419 ² When min≠0 and max≠0, Alarm higher than max or lower than min
420
421 Example:
422
423 AT+ HUMALARM =50,60 ~/~/ Alarm when moisture lower than 50.
424
425 AT+ TEMPALARM=min,max
426
427 ² When min=0, and max≠0, Alarm higher than max
428
429 ² When min≠0, and max=0, Alarm lower than min
430
431 ² When min≠0 and max≠0, Alarm higher than max or lower than min
432
433 Example:
434
435 AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
436
437
438 == 2.9 Set the number of data to be uploaded and the recording time ==
439
440 ➢ AT Command:
441
442 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)
443
444 AT+NOUD=8  ~/~/The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
445
446 == 2.10 Read or Clear cached data ==
447
448 ➢ AT Command:
449
450 AT+CDP    ~/~/ Read cached data
451
452 [[image:image-20220907171221-20.png]]
453
454
455 AT+CDP=0    ~/~/ Clear cached data
456
457
458 == 2.11  ​Firmware Change Log ==
459
460 Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0>>url:https://www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0]]
461
462 Upgrade Instruction: [[Upgrade Firmware>>path:#H5.1200BHowtoUpgradeFirmware]]
463
464 == 2.12  ​Battery Analysis ==
465
466 === 2.12.1  ​Battery Type ===
467
468 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.
469
470 The battery is designed to last for several years depends on the actually use environment and update interval. 
471
472 The battery related documents as below:
473
474 * [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
475 * [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
476 * [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
477
478 [[image:image-20220907171221-21.png]] ​
479
480 === 2.12.2  Power consumption Analyze ===
481
482 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.
483
484 Instruction to use as below:
485
486 **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/]]
487
488 **Step 2: ** Open it and choose
489
490 * Product Model
491 * Uplink Interval
492 * Working Mode
493
494 And the Life expectation in difference case will be shown on the right.
495
496 [[image:image-20220907171221-22.jpeg]] ​
497
498 === 2.12.3  ​Battery Note ===
499
500 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.
501
502 === 2.12.4  Replace the battery ===
503
504 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).
505
506 = 3. ​ Access NB-IoT Module =
507
508 Users can directly access the AT command set of the NB-IoT module.
509
510 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/]] 
511
512 [[image:image-20220907171221-23.png]] ​
513
514 = 4.  Using the AT Commands =
515
516 == 4.1  Access AT Commands ==
517
518 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]]
519
520 AT+<CMD>?  : Help on <CMD>
521
522 AT+<CMD>         : Run <CMD>
523
524 AT+<CMD>=<value> : Set the value
525
526 AT+<CMD>=?  : Get the value
527
528 **General Commands**      
529
530 AT  : Attention       
531
532 AT?  : Short Help     
533
534 ATZ  : MCU Reset    
535
536 AT+TDC  : Application Data Transmission Interval
537
538 AT+CFG  : Print all configurations
539
540 AT+CFGMOD           : Working mode selection
541
542 AT+INTMOD            : Set the trigger interrupt mode
543
544 AT+5VT  : Set extend the time of 5V power  
545
546 AT+PRO  : Choose agreement
547
548 AT+RXDL  : Extend the sending and receiving time
549
550 AT+SERVADDR  : Server Address
551
552 AT+TR      : Get or Set record time"
553
554
555 AT+NOUD      : Get or Set the number of data to be uploaded
556
557
558 AT+CDP     : Read or Clear cached data
559
560
561 AT+TEMPALARM      : Get or Set alarm of temp
562
563 AT+HUMALARM     : Get or Set alarm of PH
564
565
566 **COAP Management**      
567
568 AT+URI            : Resource parameters
569
570 **UDP Management**
571
572 AT+CFM          : Upload confirmation mode (only valid for UDP)
573
574 **MQTT Management**
575
576 AT+CLIENT               : Get or Set MQTT client
577
578 AT+UNAME  : Get or Set MQTT Username
579
580 AT+PWD                  : Get or Set MQTT password
581
582 AT+PUBTOPIC  : Get or Set MQTT publish topic
583
584 AT+SUBTOPIC  : Get or Set MQTT subscription topic
585
586 **Information**          
587
588 AT+FDR  : Factory Data Reset
589
590 AT+PWORD  : Serial Access Password
591
592 = ​5.  FAQ =
593
594 == 5.1 ​ How to Upgrade Firmware ==
595
596 User can upgrade the firmware for 1) bug fix, 2) new feature release.
597
598 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>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList]]
599
600 **Notice, **NLMS01 **and **NLMS01 **share the same mother board. They use the same connection and method to update.**
601
602 = 6.  Trouble Shooting =
603
604 == 6.1  ​Connection problem when uploading firmware ==
605
606 **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]]
607
608 == 6.2  AT Command input doesn't work ==
609
610 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 **ENTER** while sending out the command. Some serial tool doesn't send **ENTER** while press the send key, user need to add ENTER in their string.
611
612 = 7. ​ Order Info =
613
614 Part Number**:** NLMS01
615
616 = 8.  Packing Info =
617
618 **Package Includes**:
619
620 * NLMS01 NB-IoT Leaf Moisture Sensor x 1
621
622 **Dimension and weight**:
623
624 * Device Size: cm
625 * Device Weight: g
626 * Package Size / pcs : cm
627 * Weight / pcs : g
628
629 = 9.  Support =
630
631 * 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.
632 * 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]]
633
634 ​
635
636

Applications

Navigation

Copyright ©2010-2022 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0