Version 25.1 by David Huang on 2022/09/07 17:14
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1 [[image:image-20220907171221-1.jpeg]]​
2
3
4
5 **~1. Introduction**
6
7 **1.1 ​What is NLMS01 **Leaf Moisture Sensor
8
9 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.
10
11 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.
12
13 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.
14 \\NLMS01 supports different uplink methods include **TCP,MQTT,UDP and CoAP  **for different application requirement.
15 \\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)
16 \\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
17
18 ​[[image:image-20220907171221-2.png]]
19
20 ​ [[image:image-20220907171221-3.png]]
21
22 **​1.2 Features**
23
24 * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
25 * Monitor Leaf moisture
26
27 * Monitor Leaf temperature
28
29 * Moisture and Temperature alarm function
30 * Monitor Battery Level
31 * Uplink on periodically
32 * Downlink to change configure
33 * IP66 Waterproof Enclosure
34 * IP67 rate for the Sensor Probe
35 * Ultra-Low Power consumption
36 * AT Commands to change parameters
37 * Micro SIM card slot for NB-IoT SIM
38 * 8500mAh Battery for long term use
39
40 **1.3  Specification**
41
42 **Common DC Characteristics:**
43
44 * Supply Voltage: 2.1v ~~ 3.6v
45 * Operating Temperature: -40 ~~ 85°C
46
47 **NB-IoT Spec:**
48
49 * - B1 @H-FDD: 2100MHz
50 * - B3 @H-FDD: 1800MHz
51 * - B8 @H-FDD: 900MHz
52 * - B5 @H-FDD: 850MHz
53 * - B20 @H-FDD: 800MHz
54 * - B28 @H-FDD: 700MHz
55
56 **1.4 Probe Specification**
57
58
59 **Leaf Moisture: percentage of water drop over total leaf surface**
60
61 * Range 0-100%
62 * Resolution: 0.1%
63 * Accuracy: ±3%（0-50%）；±6%（>50%）
64 * IP67 Protection
65 * Length: 3.5 meters
66
67 **Leaf Temperature:**
68
69 * Range -50℃～80℃
70 * Resolution: 0.1℃
71 * Accuracy: <±0.5℃(-10℃～70℃)，<±1.0℃ (others)
72 * IP67 Protection
73 * Length: 3.5 meters
74
75 **~ 1.5 ​Applications**
76
77 * Smart Agriculture
78
79 **1.6 Pin mapping and power on**
80
81 ​[[image:image-20220907171221-4.png]]
82
83 **~ **
84
85 **2.  Use NLMS01 to communicate with IoT Server**
86
87 **2.1  How it works**
88
89 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.
90
91 The diagram below shows the working flow in default firmware of NLMS01:
92
93 [[image:image-20220907171221-5.png]]
94
95 **2.2 ​ Configure the NLMS01**
96
97 **2.2.1 Test Requirement**
98
99 To use NLMS01 in your city, make sure meet below requirements:
100
101 * Your local operator has already distributed a NB-IoT Network there.
102 * The local NB-IoT network used the band that NLMS01 supports.
103 * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
104
105 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
106
107 [[image:image-20220907171221-6.png]] ​
108
109 **2.2.2 Insert SIM card**
110
111 Insert the NB-IoT Card get from your provider.
112
113 User need to take out the NB-IoT module and insert the SIM card like below:
114
115 [[image:image-20220907171221-7.png]] ​
116
117 **2.2.3 Connect USB – TTL to NLMS01 to configure it**
118
119 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.
120
121 **Connection:**
122
123 USB TTL GND <~-~-~-~-> GND
124
125 USB TTL TXD <~-~-~-~-> UART_RXD
126
127 USB TTL RXD <~-~-~-~-> UART_TXD
128
129 In the PC, use below serial tool settings:
130
131 * Baud:  **9600**
132 * Data bits:** 8**
133 * Stop bits: **1**
134 * Parity:  **None**
135 * Flow Control: **None**
136
137 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.
138
139 ​[[image:image-20220907171221-8.png]]
140
141 **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]]
142
143 **2.2.4 Use CoAP protocol to uplink data**
144
145 **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/]]
146
147 **Use below commands:**
148
149 * **AT+PRO=1**   ~/~/ Set to use CoAP protocol to uplink
150 * **AT+SERVADDR=120.24.4.116,5683   ** ~/~/ to set CoAP server address and port
151 * **AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** ~/~/Set COAP resource path
152
153 For parameter description, please refer to AT command set
154
155 [[image:image-20220907171221-9.png]]
156
157 After configure the server address and **reset the device** (via AT+ATZ ), NLMS01 will start to uplink sensor values to CoAP server.
158
159 [[image:image-20220907171221-10.png]] ​
160
161 **2.2.5 Use UDP protocol to uplink data(Default protocol)**
162
163 This feature is supported since firmware version v1.0.1
164
165 * **AT+PRO=2   ** ~/~/ Set to use UDP protocol to uplink
166 * **AT+SERVADDR=120.24.4.116,5601   ** ~/~/ to set UDP server address and port
167 * **AT+CFM=1       ** ~/~/If the server does not respond, this command is unnecessary
168
169 ​ [[image:image-20220907171221-11.png]]
170
171 [[image:image-20220907171221-12.png]]
172
173 ​
174
175 **2.2.6 Use MQTT protocol to uplink data**
176
177 This feature is supported since firmware version v110
178
179 * **AT+PRO=3   ** ~/~/Set to use MQTT protocol to uplink
180 * **AT+SERVADDR=120.24.4.116,1883   ** ~/~/Set MQTT server address and port
181 * **AT+CLIENT=CLIENT       ** ~/~/Set up the CLIENT of MQTT
182 * **AT+UNAME=UNAME                               **~/~/Set the username of MQTT
183 * **AT+PWD=PWD                                        **~/~/Set the password of MQTT
184 * **AT+PUBTOPIC=NSE01_PUB                    **~/~/Set the sending topic of MQTT
185 * **AT+SUBTOPIC=NSE01_SUB          ** ~/~/Set the subscription topic of MQTT
186
187 ​ [[image:image-20220907171221-13.png]]
188
189 [[image:image-20220907171221-14.png]]
190
191 ​
192
193 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.
194
195 **2.2.7 Use TCP protocol to uplink data**
196
197 This feature is supported since firmware version v110
198
199 * **AT+PRO=4   ** ~/~/ Set to use TCP protocol to uplink
200 * **AT+SERVADDR=120.24.4.116,5600   ** ~/~/ to set TCP server address and port
201
202 ​ [[image:image-20220907171221-15.png]]
203
204 [[image:image-20220907171221-16.png]]
205
206 ​
207
208 **2.2.8 Change Update Interval**
209
210 User can use below command to change the **uplink interval**.
211
212 * **AT+TDC=600      ** ~/~/ Set Update Interval to 600s
213
214 **NOTE:**
215
216 **~1. By default, the device will send an uplink message every 2 hour.**
217
218 **2.3  Uplink Payload**
219
220 In this mode, uplink payload includes 87 bytes in total by default.
221
222 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.
223
224 |**Size(bytes)**|**8**|**2**|**2**|**1**|**1**|1|2|2|2|4   
225 |**Value**|Device ID|Ver|BAT|Signal Strength|MOD|Interrupt|Leaf moisture|Leaf Temperature|Soil PH|Time stamp  .....
226
227 If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NLMS01 uplink data.
228
229 [[image:image-20220907171221-17.png]]
230
231 The payload is ASCII string, representative same HEX:
232
233 0xf86841105675413800640c781701000225010b6315537b010b0226631550fb010e022663154d7701110225631549f1011502246315466b01190223631542e5011d022163153f62011e022163153bde011e022163153859 where:
234
235 * Device ID: 0xf868411056754138 = f868411056754138
236 * Version: 0x0064=100=1.0.0
237
238 * BAT: 0x0c78 = 3192 mV = 3.192V
239 * Singal: 0x17 = 23
240 * Mod: 0x01 = 1
241 * Interrupt: 0x00= 0
242 * Leaf moisture: 0x0225= 549 = 54.9%
243 * Leaf Temperature:0x010B =267=26.7 °C
244 * Time stamp : 0x6315537b =1662342011
245 * Leaf Temperature, Leaf moisture,Time stamp : 010b0226631550fb
246 * 8 sets of recorded data: Leaf Temperature, Leaf moisture,Time stamp : 010e022663154d77,.......
247
248 **2.4  Payload Explanation and Sensor Interface**
249
250 **2.4.1  Device ID**
251
252 By default, the Device ID equal to the last 15 bits of IMEI.
253
254 User can use **AT+DEUI** to set Device ID
255
256 **Example:**
257
258 AT+DEUI=868411056754138
259
260 The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
261
262 **2.4.2  Version Info**
263
264 Specify the software version: 0x64=100, means firmware version 1.00.
265
266 For example: 0x00 64 : this device is NLMS01 with firmware version 1.0.0.
267
268 **2.4.3  Battery Info**
269
270 Check the battery voltage for NLMS01.
271
272 Ex1: 0x0B45 = 2885mV
273
274 Ex2: 0x0B49 = 2889mV
275
276 **2.4.4  Signal Strength**
277
278 NB-IoT Network signal Strength.
279
280 **Ex1: 0x1d = 29**
281
282 **0**  -113dBm or less
283
284 **1**  -111dBm
285
286 **2...30** -109dBm... -53dBm
287
288 **31**   -51dBm or greater
289
290 **99**    Not known or not detectable
291
292 **2.4.5  Leaf** moisture
293
294 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**.
295
296 For example, if the data you get from the register is **__0x05 0xDC__**, the moisture content in the **Leaf** is
297
298 **0229(H) = 549(D) /100 = 54.9.**
299
300 **2.4.6  Leaf Temperature**
301
302 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
303
304 **Example**:
305
306 If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
307
308 If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
309
310 **2.4.7  Timestamp**
311
312 Time stamp : 0x6315537b =1662342011
313
314 Convert Unix timestamp to time 2022-9-5 9:40:11.
315
316 **2.4.8  Digital Interrupt**
317
318 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.
319
320 The command is:
321
322 **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]])**.**
323
324 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.
325
326 Example:
327
328 0x(00): Normal uplink packet.
329
330 0x(01): Interrupt Uplink Packet.
331
332 **2.4.9  ​+5V Output**
333
334 NLMS01 will enable +5V output before all sampling and disable the +5v after all sampling. 
335
336 The 5V output time can be controlled by AT Command.
337
338 **AT+5VT=1000**
339
340 Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.** **
341
342
343 **2.5  Downlink Payload**
344
345 By default, NLMS01 prints the downlink payload to console port.
346
347 [[image:image-20220907171221-18.png]] ​
348
349 **Examples:**
350
351 * **Set TDC**
352
353 If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
354
355 Payload:    01 00 00 1E    TDC=30S
356
357 Payload:    01 00 00 3C    TDC=60S
358
359 * **Reset**
360
361 If payload = 0x04FF, it will reset the NLMS01
362
363 * **INTMOD**
364
365 Downlink Payload: 06000003, Set AT+INTMOD=3
366
367 **2.6  ​LED Indicator**
368
369 The NLMS01 has an internal LED which is to show the status of different state.
370
371 * 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)
372 * Then the LED will be on for 1 second means device is boot normally.
373 * After NLMS01 join NB-IoT network. The LED will be ON for 3 seconds.
374 * For each uplink probe, LED will be on for 500ms.
375
376 **2.7 Installation**
377
378 NLMS01 probe has two sides. The side without words are the sense side. Please be ware when install the sensor.
379
380 [[image:image-20220907171221-19.png]]
381
382 **2.8 Moisture and Temperature alarm function**
383
384 ➢ AT Command:
385
386 AT+ HUMALARM =min,max
387
388 ² When min=0, and max≠0, Alarm higher than max
389
390 ² When min≠0, and max=0, Alarm lower than min
391
392 ² When min≠0 and max≠0, Alarm higher than max or lower than min
393
394 Example:
395
396 AT+ HUMALARM =50,60 ~/~/ Alarm when moisture lower than 50.
397
398 AT+ TEMPALARM=min,max
399
400 ² When min=0, and max≠0, Alarm higher than max
401
402 ² When min≠0, and max=0, Alarm lower than min
403
404 ² When min≠0 and max≠0, Alarm higher than max or lower than min
405
406 Example:
407
408 AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
409
410
411 **2.9 Set the number of data to be uploaded and the recording time**
412
413 ➢ AT Command:
414
415 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)
416
417
418 AT+NOUD=8  ~/~/The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
419
420 **2.10 Read or Clear cached data**
421
422 ➢ AT Command:
423
424 AT+CDP    ~/~/ Read cached data
425
426 [[image:image-20220907171221-20.png]]
427
428
429 AT+CDP=0    ~/~/ Clear cached data
430
431
432 **2.8  ​Firmware Change Log**
433
434 Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0>>url:https://www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0]]
435
436 Upgrade Instruction: [[Upgrade Firmware>>path:#H5.1200BHowtoUpgradeFirmware]]
437
438 **2.9  ​Battery Analysis**
439
440 **2.9.1  ​Battery Type**
441
442 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.
443
444 The battery is designed to last for several years depends on the actually use environment and update interval. 
445
446 The battery related documents as below:
447
448 * [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
449 * [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
450 * [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
451
452 [[image:image-20220907171221-21.png]] ​
453
454 **2.9.2  Power consumption Analyze**
455
456 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.
457
458 Instruction to use as below:
459
460 **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/]]
461
462 **Step 2: ** Open it and choose
463
464 * Product Model
465 * Uplink Interval
466 * Working Mode
467
468 And the Life expectation in difference case will be shown on the right.
469
470 [[image:image-20220907171221-22.jpeg]] ​
471
472 **2.9.3  ​Battery Note**
473
474 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.
475
476 **2.9.4  Replace the battery**
477
478 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).
479
480 **3. ​ Access NB-IoT Module**
481
482 Users can directly access the AT command set of the NB-IoT module.
483
484 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/]] 
485
486 [[image:image-20220907171221-23.png]] ​
487
488 **4.  Using the AT Commands**
489
490 **4.1  Access AT Commands**
491
492 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]]
493
494 AT+<CMD>?  : Help on <CMD>
495
496 AT+<CMD>         : Run <CMD>
497
498 AT+<CMD>=<value> : Set the value
499
500 AT+<CMD>=?  : Get the value
501
502 **General Commands**      
503
504 AT  : Attention       
505
506 AT?  : Short Help     
507
508 ATZ  : MCU Reset    
509
510 AT+TDC  : Application Data Transmission Interval
511
512 AT+CFG  : Print all configurations
513
514 AT+CFGMOD           : Working mode selection
515
516 AT+INTMOD            : Set the trigger interrupt mode
517
518 AT+5VT  : Set extend the time of 5V power  
519
520 AT+PRO  : Choose agreement
521
522 AT+RXDL  : Extend the sending and receiving time
523
524 AT+SERVADDR  : Server Address
525
526 AT+TR      : Get or Set record time"
527
528
529 AT+NOUD      : Get or Set the number of data to be uploaded
530
531
532 AT+CDP     : Read or Clear cached data
533
534
535 AT+TEMPALARM      : Get or Set alarm of temp
536
537 AT+HUMALARM     : Get or Set alarm of PH
538
539
540 **COAP Management**      
541
542 AT+URI            : Resource parameters
543
544 **UDP Management**
545
546 AT+CFM          : Upload confirmation mode (only valid for UDP)
547
548 **MQTT Management**
549
550 AT+CLIENT               : Get or Set MQTT client
551
552 AT+UNAME  : Get or Set MQTT Username
553
554 AT+PWD                  : Get or Set MQTT password
555
556 AT+PUBTOPIC  : Get or Set MQTT publish topic
557
558 AT+SUBTOPIC  : Get or Set MQTT subscription topic
559
560 **Information**          
561
562 AT+FDR  : Factory Data Reset
563
564 AT+PWORD  : Serial Access Password
565
566 **​5.  FAQ**
567
568 **5.1 ​ How to Upgrade Firmware**
569
570 User can upgrade the firmware for 1) bug fix, 2) new feature release.
571
572 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]]
573
574 **Notice, **NLMS01 **and **NLMS01 **share the same mother board. They use the same connection and method to update.**
575
576 **6.  Trouble Shooting**
577
578 **6.1  ​Connection problem when uploading firmware**
579
580 **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]]
581
582 **6.2  AT Command input doesn't work**
583
584 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.
585
586 **7. ​ Order Info**
587
588 Part Number**:** NLMS01
589
590 **8.  Packing Info**
591
592 **Package Includes**:
593
594 * NLMS01 NB-IoT Leaf Moisture Sensor x 1
595
596 **Dimension and weight**:
597
598 * Device Size: cm
599 * Device Weight: g
600 * Package Size / pcs : cm
601 * Weight / pcs : g
602
603
604 **9.  Support**
605
606 * 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.
607 * 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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