Last modified by Mengting Qiu on 2024/04/02 16:54
<
From version < 32.1 >
edited by David Huang
on 2022/09/08 09:49
To version < 25.1 >
edited by David Huang
on 2022/09/07 17:14
>
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1 -(% style="text-align:center" %)
2 -[[image:image-20220907171221-1.jpeg]]
1 +[[image:image-20220907171221-1.jpeg]]​
3 3  
4 -​
5 5  
6 -{{toc/}}
7 7  
5 +**~1. Introduction**
8 8  
7 +**1.1 ​What is NLMS01 **Leaf Moisture Sensor
9 9  
10 -= 1. Introduction =
11 -
12 -== 1.1 ​What is NLMS01 Leaf Moisture Sensor ==
13 -
14 -
15 15  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.
16 16  
17 17  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.
... ... @@ -25,51 +25,25 @@
25 25  
26 26  ​ [[image:image-20220907171221-3.png]]
27 27  
28 -== ​1.2 Features ==
22 +**​1.2 Features**
29 29  
30 -* (((
31 -NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
32 -)))
33 -* (((
34 -Monitor Leaf moisture
35 -)))
24 +* NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
25 +* Monitor Leaf moisture
36 36  
37 -* (((
38 - Monitor Leaf temperature
39 -)))
27 +* Monitor Leaf temperature
40 40  
41 -* (((
42 -Moisture and Temperature alarm function
43 -)))
44 -* (((
45 -Monitor Battery Level
46 -)))
47 -* (((
48 -Uplink on periodically
49 -)))
50 -* (((
51 -Downlink to change configure
52 -)))
53 -* (((
54 -IP66 Waterproof Enclosure
55 -)))
56 -* (((
57 -IP67 rate for the Sensor Probe
58 -)))
59 -* (((
60 -Ultra-Low Power consumption
61 -)))
62 -* (((
63 -AT Commands to change parameters
64 -)))
65 -* (((
66 -Micro SIM card slot for NB-IoT SIM
67 -)))
68 -* (((
69 -8500mAh Battery for long term use
70 -)))
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
71 71  
72 -== 1.3  Specification ==
40 +**1.3  Specification**
73 73  
74 74  **Common DC Characteristics:**
75 75  
... ... @@ -85,7 +85,7 @@
85 85  * - B20 @H-FDD: 800MHz
86 86  * - B28 @H-FDD: 700MHz
87 87  
88 -== 1.4 Probe Specification ==
56 +**1.4 Probe Specification**
89 89  
90 90  
91 91  **Leaf Moisture: percentage of water drop over total leaf surface**
... ... @@ -104,19 +104,19 @@
104 104  * IP67 Protection
105 105  * Length: 3.5 meters
106 106  
107 -== 1.5 ​Applications ==
75 +**~ 1.5 ​Applications**
108 108  
109 109  * Smart Agriculture
110 110  
111 -== 1.6 Pin mapping and power on ==
79 +**1.6 Pin mapping and power on**
112 112  
113 113  ​[[image:image-20220907171221-4.png]]
114 114  
115 115  **~ **
116 116  
117 -= 2.  Use NLMS01 to communicate with IoT Server =
85 +**2.  Use NLMS01 to communicate with IoT Server**
118 118  
119 -== 2.1  How it works ==
87 +**2.1  How it works**
120 120  
121 121  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.
122 122  
... ... @@ -124,9 +124,9 @@
124 124  
125 125  [[image:image-20220907171221-5.png]]
126 126  
127 -== 2.2 ​ Configure the NLMS01 ==
95 +**2.2 ​ Configure the NLMS01**
128 128  
129 -=== 2.2.1 Test Requirement ===
97 +**2.2.1 Test Requirement**
130 130  
131 131  To use NLMS01 in your city, make sure meet below requirements:
132 132  
... ... @@ -138,7 +138,7 @@
138 138  
139 139  [[image:image-20220907171221-6.png]] ​
140 140  
141 -=== 2.2.2 Insert SIM card ===
109 +**2.2.2 Insert SIM card**
142 142  
143 143  Insert the NB-IoT Card get from your provider.
144 144  
... ... @@ -146,7 +146,7 @@
146 146  
147 147  [[image:image-20220907171221-7.png]] ​
148 148  
149 -=== 2.2.3 Connect USB – TTL to NLMS01 to configure it ===
117 +**2.2.3 Connect USB – TTL to NLMS01 to configure it**
150 150  
151 151  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.
152 152  
... ... @@ -172,7 +172,7 @@
172 172  
173 173  **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]]
174 174  
175 -=== 2.2.4 Use CoAP protocol to uplink data ===
143 +**2.2.4 Use CoAP protocol to uplink data**
176 176  
177 177  **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/]]
178 178  
... ... @@ -190,7 +190,7 @@
190 190  
191 191  [[image:image-20220907171221-10.png]] ​
192 192  
193 -=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
161 +**2.2.5 Use UDP protocol to uplink data(Default protocol)**
194 194  
195 195  This feature is supported since firmware version v1.0.1
196 196  
... ... @@ -204,7 +204,7 @@
204 204  
205 205  ​
206 206  
207 -=== 2.2.6 Use MQTT protocol to uplink data ===
175 +**2.2.6 Use MQTT protocol to uplink data**
208 208  
209 209  This feature is supported since firmware version v110
210 210  
... ... @@ -213,8 +213,8 @@
213 213  * **AT+CLIENT=CLIENT       ** ~/~/Set up the CLIENT of MQTT
214 214  * **AT+UNAME=UNAME                               **~/~/Set the username of MQTT
215 215  * **AT+PWD=PWD                                        **~/~/Set the password of MQTT
216 -* **AT+PUBTOPIC=PUB                    **~/~/Set the sending topic of MQTT
217 -* **AT+SUBTOPIC=SUB          ** ~/~/Set the subscription topic of MQTT
184 +* **AT+PUBTOPIC=NSE01_PUB                    **~/~/Set the sending topic of MQTT
185 +* **AT+SUBTOPIC=NSE01_SUB          ** ~/~/Set the subscription topic of MQTT
218 218  
219 219  ​ [[image:image-20220907171221-13.png]]
220 220  
... ... @@ -224,7 +224,7 @@
224 224  
225 225  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.
226 226  
227 -=== 2.2.7 Use TCP protocol to uplink data ===
195 +**2.2.7 Use TCP protocol to uplink data**
228 228  
229 229  This feature is supported since firmware version v110
230 230  
... ... @@ -237,23 +237,24 @@
237 237  
238 238  ​
239 239  
240 -=== 2.2.8 Change Update Interval ===
208 +**2.2.8 Change Update Interval**
241 241  
242 242  User can use below command to change the **uplink interval**.
243 243  
244 -* **AT+TDC=7200      ** ~/~/ Set Update Interval to 7200s (2 hour)
212 +* **AT+TDC=600      ** ~/~/ Set Update Interval to 600s
245 245  
246 -**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).**
214 +**NOTE:**
247 247  
216 +**~1. By default, the device will send an uplink message every 2 hour.**
248 248  
249 -== 2.3  Uplink Payload ==
218 +**2.3  Uplink Payload**
250 250  
251 251  In this mode, uplink payload includes 87 bytes in total by default.
252 252  
253 253  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.
254 254  
255 -|**Size(bytes)**|**8**|**2**|**2**|1|1|1|2|2|4|2|2|4
256 -|**Value**|Device ID|Ver|BAT|Signal Strength|MOD|Interrupt|Leaf moisture|Leaf Temperature|Time stamp|Leaf Temperature|Leaf moisture|Time stamp  .....
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  .....
257 257  
258 258  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NLMS01 uplink data.
259 259  
... ... @@ -261,23 +261,24 @@
261 261  
262 262  The payload is ASCII string, representative same HEX:
263 263  
264 -0x(% style="color:red" %)f868411056754138(% style="color:blue" %)0064(% style="color:green" %)0c78(% style="color:red" %)17(% style="color:blue" %)01(% style="color:green" %)00(% style="color:blue" %)**0225010b6315537b**010b0226631550fb**010e022663154d77**01110225631549f1**011502246315466b**01190223631542e5**011d022163153f62**011e022163153bde**011e022163153859**(%%)** **where:
233 +0xf86841105675413800640c781701000225010b6315537b010b0226631550fb010e022663154d7701110225631549f1011502246315466b01190223631542e5011d022163153f62011e022163153bde011e022163153859 where:
265 265  
266 -* (% style="color:red" %)Device ID: 0xf868411056754138 = f868411056754138
267 -* (% style="color:blue" %)Version: 0x0064=100=1.0.0
268 -* (% style="color:green" %)BAT: 0x0c78 = 3192 mV = 3.192V
269 -* (% style="color:red" %)Singal: 0x17 = 23
270 -* (% style="color:blue" %)Mod: 0x01 = 1
271 -* (% style="color:green" %)Interrupt: 0x00= 0
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
272 272  * Leaf moisture: 0x0225= 549 = 54.9%
273 273  * Leaf Temperature:0x010B =267=26.7 °C
274 -* Time stamp : 0x6315537b =1662342011 ([[Unix Epoch Time>>https://www.epochconverter.com/]])
244 +* Time stamp : 0x6315537b =1662342011
275 275  * Leaf Temperature, Leaf moisture,Time stamp : 010b0226631550fb
276 -* (% style="color:blue" %)8 sets of recorded data: Leaf Temperature, Leaf moisture,Time stamp : 010e022663154d77,.......
246 +* 8 sets of recorded data: Leaf Temperature, Leaf moisture,Time stamp : 010e022663154d77,.......
277 277  
278 -== 2.4  Payload Explanation and Sensor Interface ==
248 +**2.4  Payload Explanation and Sensor Interface**
279 279  
280 -=== 2.4.1  Device ID ===
250 +**2.4.1  Device ID**
281 281  
282 282  By default, the Device ID equal to the last 15 bits of IMEI.
283 283  
... ... @@ -289,13 +289,13 @@
289 289  
290 290  The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
291 291  
292 -=== 2.4.2  Version Info ===
262 +**2.4.2  Version Info**
293 293  
294 294  Specify the software version: 0x64=100, means firmware version 1.00.
295 295  
296 296  For example: 0x00 64 : this device is NLMS01 with firmware version 1.0.0.
297 297  
298 -=== 2.4.3  Battery Info ===
268 +**2.4.3  Battery Info**
299 299  
300 300  Check the battery voltage for NLMS01.
301 301  
... ... @@ -303,7 +303,7 @@
303 303  
304 304  Ex2: 0x0B49 = 2889mV
305 305  
306 -=== 2.4.4  Signal Strength ===
276 +**2.4.4  Signal Strength**
307 307  
308 308  NB-IoT Network signal Strength.
309 309  
... ... @@ -319,7 +319,7 @@
319 319  
320 320  **99**    Not known or not detectable
321 321  
322 -=== 2.4.5  Leaf moisture ===
292 +**2.4.5  Leaf** moisture
323 323  
324 324  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**.
325 325  
... ... @@ -327,7 +327,7 @@
327 327  
328 328  **0229(H) = 549(D) /100 = 54.9.**
329 329  
330 -=== 2.4.6  Leaf Temperature ===
300 +**2.4.6  Leaf Temperature**
331 331  
332 332  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
333 333  
... ... @@ -337,13 +337,13 @@
337 337  
338 338  If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
339 339  
340 -=== 2.4.7  Timestamp ===
310 +**2.4.7  Timestamp**
341 341  
342 342  Time stamp : 0x6315537b =1662342011
343 343  
344 344  Convert Unix timestamp to time 2022-9-5 9:40:11.
345 345  
346 -=== 2.4.8  Digital Interrupt ===
316 +**2.4.8  Digital Interrupt**
347 347  
348 348  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.
349 349  
... ... @@ -359,7 +359,7 @@
359 359  
360 360  0x(01): Interrupt Uplink Packet.
361 361  
362 -=== 2.4.9  ​+5V Output ===
332 +**2.4.9  ​+5V Output**
363 363  
364 364  NLMS01 will enable +5V output before all sampling and disable the +5v after all sampling. 
365 365  
... ... @@ -370,7 +370,7 @@
370 370  Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.** **
371 371  
372 372  
373 -== 2.5  Downlink Payload ==
343 +**2.5  Downlink Payload**
374 374  
375 375  By default, NLMS01 prints the downlink payload to console port.
376 376  
... ... @@ -394,7 +394,7 @@
394 394  
395 395  Downlink Payload: 06000003, Set AT+INTMOD=3
396 396  
397 -== 2.6  ​LED Indicator ==
367 +**2.6  ​LED Indicator**
398 398  
399 399  The NLMS01 has an internal LED which is to show the status of different state.
400 400  
... ... @@ -403,13 +403,13 @@
403 403  * After NLMS01 join NB-IoT network. The LED will be ON for 3 seconds.
404 404  * For each uplink probe, LED will be on for 500ms.
405 405  
406 -== 2.7 Installation ==
376 +**2.7 Installation**
407 407  
408 408  NLMS01 probe has two sides. The side without words are the sense side. Please be ware when install the sensor.
409 409  
410 410  [[image:image-20220907171221-19.png]]
411 411  
412 -== 2.8 Moisture and Temperature alarm function ==
382 +**2.8 Moisture and Temperature alarm function**
413 413  
414 414  ➢ AT Command:
415 415  
... ... @@ -438,15 +438,16 @@
438 438  AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
439 439  
440 440  
441 -== 2.9 Set the number of data to be uploaded and the recording time ==
411 +**2.9 Set the number of data to be uploaded and the recording time**
442 442  
443 443  ➢ AT Command:
444 444  
445 445  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)
446 446  
417 +
447 447  AT+NOUD=8  ~/~/The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
448 448  
449 -== 2.10 Read or Clear cached data ==
420 +**2.10 Read or Clear cached data**
450 450  
451 451  ➢ AT Command:
452 452  
... ... @@ -458,15 +458,15 @@
458 458  AT+CDP=0    ~/~/ Clear cached data
459 459  
460 460  
461 -== 2.11  ​Firmware Change Log ==
432 +**2.8  ​Firmware Change Log**
462 462  
463 463  Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0>>url:https://www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0]]
464 464  
465 465  Upgrade Instruction: [[Upgrade Firmware>>path:#H5.1200BHowtoUpgradeFirmware]]
466 466  
467 -== 2.12  ​Battery Analysis ==
438 +**2.9  ​Battery Analysis**
468 468  
469 -=== 2.12.1  ​Battery Type ===
440 +**2.9.1  ​Battery Type**
470 470  
471 471  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.
472 472  
... ... @@ -480,7 +480,7 @@
480 480  
481 481  [[image:image-20220907171221-21.png]] ​
482 482  
483 -=== 2.12.2  Power consumption Analyze ===
454 +**2.9.2  Power consumption Analyze**
484 484  
485 485  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.
486 486  
... ... @@ -498,15 +498,15 @@
498 498  
499 499  [[image:image-20220907171221-22.jpeg]] ​
500 500  
501 -=== 2.12.3  ​Battery Note ===
472 +**2.9.3  ​Battery Note**
502 502  
503 503  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.
504 504  
505 -=== 2.12.4  Replace the battery ===
476 +**2.9.4  Replace the battery**
506 506  
507 507  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).
508 508  
509 -= 3. ​ Access NB-IoT Module =
480 +**3. ​ Access NB-IoT Module**
510 510  
511 511  Users can directly access the AT command set of the NB-IoT module.
512 512  
... ... @@ -514,9 +514,9 @@
514 514  
515 515  [[image:image-20220907171221-23.png]] ​
516 516  
517 -= 4.  Using the AT Commands =
488 +**4.  Using the AT Commands**
518 518  
519 -== 4.1  Access AT Commands ==
490 +**4.1  Access AT Commands**
520 520  
521 521  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]]
522 522  
... ... @@ -552,20 +552,15 @@
552 552  
553 553  AT+SERVADDR  : Server Address
554 554  
555 -AT+APN     : Get or set the APN
556 -
557 -AT+FBAND   : Get or Set whether to automatically modify the frequency band
558 -
559 -AT+DNSCFG  : Get or Set DNS Server
560 -
561 -AT+GETSENSORVALUE   : Returns the current sensor measurement
562 -
563 563  AT+TR      : Get or Set record time"
564 564  
528 +
565 565  AT+NOUD      : Get or Set the number of data to be uploaded
566 566  
531 +
567 567  AT+CDP     : Read or Clear cached data
568 568  
534 +
569 569  AT+TEMPALARM      : Get or Set alarm of temp
570 570  
571 571  AT+HUMALARM     : Get or Set alarm of PH
... ... @@ -597,9 +597,9 @@
597 597  
598 598  AT+PWORD  : Serial Access Password
599 599  
600 -= ​5.  FAQ =
566 +**​5.  FAQ**
601 601  
602 -== 5.1 ​ How to Upgrade Firmware ==
568 +**5.1 ​ How to Upgrade Firmware**
603 603  
604 604  User can upgrade the firmware for 1) bug fix, 2) new feature release.
605 605  
... ... @@ -607,21 +607,21 @@
607 607  
608 608  **Notice, **NLMS01 **and **NLMS01 **share the same mother board. They use the same connection and method to update.**
609 609  
610 -= 6.  Trouble Shooting =
576 +**6.  Trouble Shooting**
611 611  
612 -== 6.1  ​Connection problem when uploading firmware ==
578 +**6.1  ​Connection problem when uploading firmware**
613 613  
614 614  **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]]
615 615  
616 -== 6.2  AT Command input doesn't work ==
582 +**6.2  AT Command input doesn't work**
617 617  
618 618  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.
619 619  
620 -= 7. ​ Order Info =
586 +**7. ​ Order Info**
621 621  
622 622  Part Number**:** NLMS01
623 623  
624 -= 8.  Packing Info =
590 +**8.  Packing Info**
625 625  
626 626  **Package Includes**:
627 627  
... ... @@ -634,9 +634,12 @@
634 634  * Package Size / pcs : cm
635 635  * Weight / pcs : g
636 636  
637 -= 9.  Support =
638 638  
604 +**9.  Support**
605 +
639 639  * 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.
640 640  * 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]]
641 641  
642 642  ​
610 +
611 +

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