Last modified by Bei Jinggeng on 2024/05/31 09:53
<
From version < 11.2 >
edited by Xiaoling
on 2022/06/06 15:54
To version < 14.3 >
edited by Xiaoling
on 2022/06/06 16:24
>
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Summary

Details

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Content
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1 1  (% style="text-align:center" %)
2 2  [[image:image-20220606151504-2.jpeg||height="848" width="848"]]
3 3  
4 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
5 5  
6 6  
7 7  
... ... @@ -9,44 +9,40 @@
9 9  
10 10  
11 11  
11 += 1. Introduction =
12 12  
13 +== 1.1 ​What is LoRaWAN Soil Moisture & EC Sensor ==
13 13  
15 +(((
16 +The Dragino LSE01 is a (% style="color:#4f81bd" %)**LoRaWAN Soil Moisture & EC Sensor**(%%) for IoT of Agriculture. It is designed to measure the soil moisture of saline-alkali soil and loamy soil. The soil sensor uses FDR method to calculate the soil moisture with the compensation from soil temperature and conductivity. It also has been calibrated in factory for Mineral soil type.
17 +)))
14 14  
19 +(((
20 +It detects (% style="color:#4f81bd" %)**Soil Moisture**(%%), (% style="color:#4f81bd" %)**Soil Temperature**(%%) and (% style="color:#4f81bd" %)**Soil Conductivity**(%%), and uploads the value via wireless to LoRaWAN IoT Server.
21 +)))
15 15  
16 -
17 -
18 -
19 -
20 -
21 -
22 -
23 -1. Introduction
24 -11. ​What is LoRaWAN Soil Moisture & EC Sensor
25 -
26 -The Dragino LSE01 is a **LoRaWAN Soil Moisture & EC Sensor** for IoT of Agriculture. It is designed to measure the soil moisture of saline-alkali soil and loamy soil. The soil sensor uses FDR method to calculate the soil moisture with the compensation from soil temperature and conductivity. It also has been calibrated in factory for Mineral soil type.
27 -
28 -
29 -It detects **Soil Moisture**, **Soil Temperature** and **Soil Conductivity**, and uploads the value via wireless to LoRaWAN IoT Server.
30 -
31 -
23 +(((
32 32  The LoRa wireless technology used in LES01 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
25 +)))
33 33  
27 +(((
28 +LES01 is powered by (% style="color:#4f81bd" %)**4000mA or 8500mAh Li-SOCI2 battery**(%%), It is designed for long term use up to 10 years.
29 +)))
34 34  
35 -LES01 is powered by **4000mA or 8500mAh Li-SOCI2 battery**, It is designed for long term use up to 10 years.
36 -
37 -
31 +(((
38 38  Each LES01 is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
33 +)))
39 39  
40 40  
41 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.png]]
36 +[[image:1654503236291-817.png]]
42 42  
43 43  
44 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.png]]
39 +[[image:1654503265560-120.png]]
45 45  
46 46  
47 47  
48 -*
49 -*1. ​Features
43 +== 1.2 ​Features ==
44 +
50 50  * LoRaWAN 1.0.3 Class A
51 51  * Ultra low power consumption
52 52  * Monitor Soil Moisture
... ... @@ -59,48 +59,31 @@
59 59  * IP66 Waterproof Enclosure
60 60  * 4000mAh or 8500mAh Battery for long term use
61 61  
62 -1.
63 -11. Specification
64 64  
58 +== 1.3 Specification ==
59 +
65 65  Measure Volume: Base on the centra pin of the probe, a cylinder with 7cm diameter and 10cm height.
66 66  
67 -|**Parameter**|**Soil Moisture**|**Soil Conductivity**|**Soil Temperature**
68 -|**Range**|**0-100.00%**|(((
69 -**0-20000uS/cm**
62 +[[image:image-20220606162220-5.png]]
70 70  
71 -**(25℃)(0-20.0EC)**
72 -)))|**-40.00℃～85.00℃**
73 -|**Unit**|**V/V %,**|**uS/cm,**|**℃**
74 -|**Resolution**|**0.01%**|**1 uS/cm**|**0.01℃**
75 -|**Accuracy**|(((
76 -**±3% (0-53%)**
77 77  
78 -**±5% (>53%)**
79 -)))|**2%FS,**|(((
80 -**-10℃～50℃:<0.3℃**
81 81  
82 -**All other: <0.6℃**
83 -)))
84 -|(((
85 -**Measure**
66 +== ​1.4 Applications ==
86 86  
87 -**Method**
88 -)))|**FDR , with temperature &EC compensate**|**Conductivity , with temperature compensate**|**RTD, and calibrate**
89 -
90 -*
91 -*1. ​Applications
92 92  * Smart Agriculture
93 93  
94 -1.
95 -11. ​Firmware Change log
96 96  
97 -**LSE01 v1.0:**
71 +== ​1.5 Firmware Change log ==
98 98  
99 -* Release
100 100  
101 -1. Configure LSE01 to connect to LoRaWAN network
102 -11. How it works
74 +**LSE01 v1.0 :**  Release
103 103  
76 +
77 +
78 += 2. Configure LSE01 to connect to LoRaWAN network =
79 +
80 +== 2.1 How it works ==
81 +
104 104  The LSE01 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LSE0150. It will automatically join the network via OTAA and start to send the sensor value
105 105  
106 106  
... ... @@ -109,7 +109,7 @@
109 109  
110 110  
111 111  
112 -1.
90 +1.
113 113  11. ​Quick guide to connect to LoRaWAN server (OTAA)
114 114  
115 115  Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example.
... ... @@ -200,7 +200,7 @@
200 200  
201 201  
202 202  1.
203 -11.
181 +11.
204 204  111. MOD=1(Original value)
205 205  
206 206  This mode can get the original AD value of moisture and original conductivity (with temperature drift compensation).
... ... @@ -223,7 +223,7 @@
223 223  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image008.png]]
224 224  
225 225  1.
226 -11.
204 +11.
227 227  111. Battery Info
228 228  
229 229  Check the battery voltage for LSE01.
... ... @@ -234,8 +234,8 @@
234 234  
235 235  
236 236  
237 -1.
238 -11.
215 +1.
216 +11.
239 239  111. Soil Moisture
240 240  
241 241  Get the moisture content of the soil. The value range of the register is 0-10000(Decimal), divide this value by 100 to get the percentage of moisture in the soil.
... ... @@ -245,8 +245,8 @@
245 245  **05DC(H) = 1500(D) /100 = 15%.**
246 246  
247 247  
248 -1.
249 -11.
226 +1.
227 +11.
250 250  111. Soil Temperature
251 251  
252 252   Get the temperature in the soil. The value range of the register is -4000 - +800(Decimal), divide this value by 100 to get the temperature in the soil. For example, if the data you get from the register is 0x09 0xEC, the temperature content in the soil is
... ... @@ -258,8 +258,8 @@
258 258  If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/100 = -1.29 °C
259 259  
260 260  
261 -1.
262 -11.
239 +1.
240 +11.
263 263  111. Soil Conductivity (EC)
264 264  
265 265  Obtain soluble salt concentration in soil or soluble ion concentration in liquid fertilizer or planting medium,. The value range of the register is 0 - 20000(Decimal)( Can be greater than 20000).
... ... @@ -269,8 +269,8 @@
269 269  
270 270  Generally, the EC value of irrigation water is less than 800uS / cm.
271 271  
272 -1.
273 -11.
250 +1.
251 +11.
274 274  111. MOD
275 275  
276 276  Firmware version at least v2.1 supports changing mode.
... ... @@ -287,8 +287,8 @@
287 287  If** **payload =** **0x0A01, workmode=1
288 288  
289 289  
290 -1.
291 -11.
268 +1.
269 +11.
292 292  111. ​Decode payload in The Things Network
293 293  
294 294  While using TTN network, you can add the payload format to decode the payload.
... ... @@ -301,7 +301,7 @@
301 301  LSE01 TTN Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
302 302  
303 303  
304 -1.
282 +1.
305 305  11. Uplink Interval
306 306  
307 307  The LSE01 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link:
... ... @@ -308,7 +308,7 @@
308 308  
309 309  [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands#Change_Uplink_Interval>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands#Change_Uplink_Interval]]
310 310  
311 -1.
289 +1.
312 312  11. ​Downlink Payload
313 313  
314 314  By default, LSE50 prints the downlink payload to console port.
... ... @@ -341,7 +341,7 @@
341 341  
342 342  Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
343 343  
344 -1.
322 +1.
345 345  11. ​Show Data in DataCake IoT Server
346 346  
347 347  [[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
... ... @@ -382,8 +382,8 @@
382 382  
383 383  The LSE01 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
384 384  
385 -1.
386 -11.
363 +1.
364 +11.
387 387  111. EU863-870 (EU868)
388 388  
389 389  Uplink:
... ... @@ -414,8 +414,8 @@
414 414  869.525 - SF9BW125 (RX2 downlink only)
415 415  
416 416  
417 -1.
418 -11.
395 +1.
396 +11.
419 419  111. US902-928(US915)
420 420  
421 421  Used in USA, Canada and South America. Default use CHE=2
... ... @@ -460,8 +460,8 @@
460 460  923.3 - SF12BW500(RX2 downlink only)
461 461  
462 462  
463 -1.
464 -11.
441 +1.
442 +11.
465 465  111. CN470-510 (CN470)
466 466  
467 467  Used in China, Default use CHE=1
... ... @@ -506,8 +506,8 @@
506 506  505.3 - SF12BW125 (RX2 downlink only)
507 507  
508 508  
509 -1.
510 -11.
487 +1.
488 +11.
511 511  111. AU915-928(AU915)
512 512  
513 513  Default use CHE=2
... ... @@ -551,8 +551,8 @@
551 551  
552 552  923.3 - SF12BW500(RX2 downlink only)
553 553  
554 -1.
555 -11.
532 +1.
533 +11.
556 556  111. AS920-923 & AS923-925 (AS923)
557 557  
558 558  **Default Uplink channel:**
... ... @@ -604,8 +604,8 @@
604 604  923.2 - SF10BW125 (RX2)
605 605  
606 606  
607 -1.
608 -11.
585 +1.
586 +11.
609 609  111. KR920-923 (KR920)
610 610  
611 611  Default channel:
... ... @@ -641,8 +641,8 @@
641 641  921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
642 642  
643 643  
644 -1.
645 -11.
622 +1.
623 +11.
646 646  111. IN865-867 (IN865)
647 647  
648 648  Uplink:
... ... @@ -661,7 +661,7 @@
661 661  866.550 - SF10BW125 (RX2)
662 662  
663 663  
664 -1.
642 +1.
665 665  11. LED Indicator
666 666  
667 667  The LSE01 has an internal LED which is to show the status of different state.
... ... @@ -671,7 +671,7 @@
671 671  * Solid ON for 5 seconds once device successful Join the network.
672 672  * Blink once when device transmit a packet.
673 673  
674 -1.
652 +1.
675 675  11. Installation in Soil
676 676  
677 677  **Measurement the soil surface**
... ... @@ -698,7 +698,7 @@
698 698  
699 699  
700 700  
701 -1.
679 +1.
702 702  11. ​Firmware Change Log
703 703  
704 704  **Firmware download link:**
... ... @@ -717,7 +717,7 @@
717 717  
718 718  
719 719  
720 -1.
698 +1.
721 721  11. ​Battery Analysis
722 722  111. ​Battery Type
723 723  
... ... @@ -741,15 +741,15 @@
741 741  
742 742  
743 743  
744 -1.
745 -11.
722 +1.
723 +11.
746 746  111. ​Battery Note
747 747  
748 748  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.
749 749  
750 750  
751 -1.
752 -11.
729 +1.
730 +11.
753 753  111. ​Replace the battery
754 754  
755 755  If Battery is lower than 2.7v, user should replace the battery of LSE01.
... ... @@ -769,6 +769,7 @@
769 769  
770 770  == 3.1 Access AT Commands ==
771 771  
750 +
772 772  LSE01 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LSE01 for using AT command, as below.
773 773  
774 774  [[image:1654501986557-872.png]]
... ... @@ -790,116 +790,111 @@
790 790  Below are the available commands, a more detailed AT Command manual can be found at [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/]]: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/]]
791 791  
792 792  
793 -AT+<CMD>?        : Help on <CMD>
772 +(% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD>? **(%%) : Help on <CMD>
794 794  
795 -AT+<CMD>         : Run <CMD>
774 +(% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD> **(%%) : Run <CMD>
796 796  
797 -AT+<CMD>=<value> : Set the value
776 +(% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD>=<value>**(%%) : Set the value
798 798  
799 -AT+<CMD>=?       : Get the value
778 +(% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD>=?**(%%)  : Get the value
800 800  
801 801  
802 -**General Commands**      
781 +(% style="color:#037691" %)**General Commands**(%%)      
803 803  
804 -AT                    : Attention       
783 +(% style="background-color:#dcdcdc" %)**AT**(%%)  : Attention       
805 805  
806 -AT?                            : Short Help     
785 +(% style="background-color:#dcdcdc" %)**AT?**(%%)  : Short Help     
807 807  
808 -ATZ                            : MCU Reset    
787 +(% style="background-color:#dcdcdc" %)**ATZ**(%%)  : MCU Reset    
809 809  
810 -AT+TDC           : Application Data Transmission Interval 
789 +(% style="background-color:#dcdcdc" %)**AT+TDC**(%%)  : Application Data Transmission Interval 
811 811  
812 812  
813 -**Keys, IDs and EUIs management**
792 +(% style="color:#037691" %)**Keys, IDs and EUIs management**
814 814  
815 -AT+APPEUI              : Application EUI      
794 +(% style="background-color:#dcdcdc" %)**AT+APPEUI**(%%)              : Application EUI      
816 816  
817 -AT+APPKEY              : Application Key     
796 +(% style="background-color:#dcdcdc" %)**AT+APPKEY**(%%)              : Application Key     
818 818  
819 -AT+APPSKEY            : Application Session Key
798 +(% style="background-color:#dcdcdc" %)**AT+APPSKEY**(%%)            : Application Session Key
820 820  
821 -AT+DADDR              : Device Address     
800 +(% style="background-color:#dcdcdc" %)**AT+DADDR**(%%)              : Device Address     
822 822  
823 -AT+DEUI                   : Device EUI     
802 +(% style="background-color:#dcdcdc" %)**AT+DEUI**(%%)                   : Device EUI     
824 824  
825 -AT+NWKID               : Network ID (You can enter this command change only after successful network connection) 
804 +(% style="background-color:#dcdcdc" %)**AT+NWKID**(%%)               : Network ID (You can enter this command change only after successful network connection) 
826 826  
827 -AT+NWKSKEY          : Network Session Key Joining and sending date on LoRa network  
806 +(% style="background-color:#dcdcdc" %)**AT+NWKSKEY**(%%)          : Network Session Key Joining and sending date on LoRa network  
828 828  
829 -AT+CFM          : Confirm Mode       
808 +(% style="background-color:#dcdcdc" %)**AT+CFM**(%%)  : Confirm Mode       
830 830  
831 -AT+CFS                     : Confirm Status       
810 +(% style="background-color:#dcdcdc" %)**AT+CFS**(%%)                     : Confirm Status       
832 832  
833 -AT+JOIN          : Join LoRa? Network       
812 +(% style="background-color:#dcdcdc" %)**AT+JOIN**(%%)  : Join LoRa? Network       
834 834  
835 -AT+NJM          : LoRa? Network Join Mode    
814 +(% style="background-color:#dcdcdc" %)**AT+NJM**(%%)  : LoRa? Network Join Mode    
836 836  
837 -AT+NJS                     : LoRa? Network Join Status    
816 +(% style="background-color:#dcdcdc" %)**AT+NJS**(%%)                     : LoRa? Network Join Status    
838 838  
839 -AT+RECV                  : Print Last Received Data in Raw Format
818 +(% style="background-color:#dcdcdc" %)**AT+RECV**(%%)                  : Print Last Received Data in Raw Format
840 840  
841 -AT+RECVB                : Print Last Received Data in Binary Format      
820 +(% style="background-color:#dcdcdc" %)**AT+RECVB**(%%)                : Print Last Received Data in Binary Format      
842 842  
843 -AT+SEND                  : Send Text Data      
822 +(% style="background-color:#dcdcdc" %)**AT+SEND**(%%)                  : Send Text Data      
844 844  
845 -AT+SENB                  : Send Hexadecimal Data
824 +(% style="background-color:#dcdcdc" %)**AT+SENB**(%%)                  : Send Hexadecimal Data
846 846  
847 847  
848 -**LoRa Network Management**
827 +(% style="color:#037691" %)**LoRa Network Management**
849 849  
850 -AT+ADR          : Adaptive Rate
829 +(% style="background-color:#dcdcdc" %)**AT+ADR**(%%)          : Adaptive Rate
851 851  
852 -AT+CLASS                : LoRa Class(Currently only support class A
831 +(% style="background-color:#dcdcdc" %)**AT+CLASS**(%%)  : LoRa Class(Currently only support class A
853 853  
854 -AT+DCS           : Duty Cycle Setting 
833 +(% style="background-color:#dcdcdc" %)**AT+DCS**(%%)  : Duty Cycle Setting 
855 855  
856 -AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
835 +(% style="background-color:#dcdcdc" %)**AT+DR**(%%)  : Data Rate (Can Only be Modified after ADR=0)     
857 857  
858 -AT+FCD           : Frame Counter Downlink       
837 +(% style="background-color:#dcdcdc" %)**AT+FCD**(%%)  : Frame Counter Downlink       
859 859  
860 -AT+FCU           : Frame Counter Uplink   
839 +(% style="background-color:#dcdcdc" %)**AT+FCU**(%%)  : Frame Counter Uplink   
861 861  
862 -AT+JN1DL                : Join Accept Delay1
841 +(% style="background-color:#dcdcdc" %)**AT+JN1DL**(%%)  : Join Accept Delay1
863 863  
864 -AT+JN2DL                : Join Accept Delay2
843 +(% style="background-color:#dcdcdc" %)**AT+JN2DL**(%%)  : Join Accept Delay2
865 865  
866 -AT+PNM                   : Public Network Mode   
845 +(% style="background-color:#dcdcdc" %)**AT+PNM**(%%)  : Public Network Mode   
867 867  
868 -AT+RX1DL                : Receive Delay1      
847 +(% style="background-color:#dcdcdc" %)**AT+RX1DL**(%%)  : Receive Delay1      
869 869  
870 -AT+RX2DL                : Receive Delay2      
849 +(% style="background-color:#dcdcdc" %)**AT+RX2DL**(%%)  : Receive Delay2      
871 871  
872 -AT+RX2DR               : Rx2 Window Data Rate 
851 +(% style="background-color:#dcdcdc" %)**AT+RX2DR**(%%)  : Rx2 Window Data Rate 
873 873  
874 -AT+RX2FQ               : Rx2 Window Frequency
853 +(% style="background-color:#dcdcdc" %)**AT+RX2FQ**(%%)  : Rx2 Window Frequency
875 875  
876 -AT+TXP           : Transmit Power
855 +(% style="background-color:#dcdcdc" %)**AT+TXP**(%%)  : Transmit Power
877 877  
878 -AT+ MOD                 : Set work mode
857 +(% style="background-color:#dcdcdc" %)**AT+ MOD**(%%)  : Set work mode
879 879  
880 880  
881 -**Information** 
860 +(% style="color:#037691" %)**Information** 
882 882  
883 -AT+RSSI           : RSSI of the Last Received Packet   
862 +(% style="background-color:#dcdcdc" %)**AT+RSSI**(%%)           : RSSI of the Last Received Packet   
884 884  
885 -AT+SNR           : SNR of the Last Received Packet   
864 +(% style="background-color:#dcdcdc" %)**AT+SNR**(%%)           : SNR of the Last Received Packet   
886 886  
887 -AT+VER           : Image Version and Frequency Band       
866 +(% style="background-color:#dcdcdc" %)**AT+VER**(%%)           : Image Version and Frequency Band       
888 888  
889 -AT+FDR           : Factory Data Reset
868 +(% style="background-color:#dcdcdc" %)**AT+FDR**(%%)           : Factory Data Reset
890 890  
891 -AT+PORT                  : Application Port    
870 +(% style="background-color:#dcdcdc" %)**AT+PORT**(%%)  : Application Port    
892 892  
893 -AT+CHS           : Get or Set Frequency (Unit: Hz) for Single Channel Mode
872 +(% style="background-color:#dcdcdc" %)**AT+CHS**(%%)  : Get or Set Frequency (Unit: Hz) for Single Channel Mode
894 894  
895 - AT+CHE                   : Get or Set eight channels mode, Only for US915, AU915, CN470
874 + (% style="background-color:#dcdcdc" %)**AT+CHE**(%%)  : Get or Set eight channels mode, Only for US915, AU915, CN470
896 896  
897 897  
898 -
899 -
900 -
901 -
902 -
903 903  = ​4. FAQ =
904 904  
905 905  == 4.1 ​How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1040,3 +1040,4 @@
1040 1040  * 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.
1041 1041  * 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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