Changes for page NDDS75 -- NB-IoT Distance Detect Sensor User Manual
Last modified by Bei Jinggeng on 2024/05/31 09:53
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... ... @@ -13,13 +13,11 @@ 13 13 14 14 **Table of Contents:** 15 15 16 -{{toc/}} 17 17 18 18 19 19 20 20 21 21 22 - 23 23 = 1. Introduction = 24 24 25 25 == 1.1 What is LoRaWAN Soil Moisture & EC Sensor == ... ... @@ -45,8 +45,9 @@ 45 45 46 46 47 47 48 -== 1.2 46 +== 1.2 Features == 49 49 48 + 50 50 * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD 51 51 * Monitor Soil Moisture 52 52 * Monitor Soil Temperature ... ... @@ -60,8 +60,6 @@ 60 60 * Micro SIM card slot for NB-IoT SIM 61 61 * 8500mAh Battery for long term use 62 62 63 - 64 - 65 65 == 1.3 Specification == 66 66 67 67 ... ... @@ -70,7 +70,6 @@ 70 70 * Supply Voltage: 2.1v ~~ 3.6v 71 71 * Operating Temperature: -40 ~~ 85°C 72 72 73 - 74 74 (% style="color:#037691" %)**NB-IoT Spec:** 75 75 76 76 * - B1 @H-FDD: 2100MHz ... ... @@ -80,9 +80,8 @@ 80 80 * - B20 @H-FDD: 800MHz 81 81 * - B28 @H-FDD: 700MHz 82 82 79 +(% style="color:#037691" %)**Probe Specification:** 83 83 84 -Probe(% style="color:#037691" %)** Specification:** 85 - 86 86 Measure Volume: Base on the centra pin of the probe, a cylinder with 7cm diameter and 10cm height. 87 87 88 88 [[image:image-20220708101224-1.png]] ... ... @@ -295,7 +295,7 @@ 295 295 |=(% style="width: 50px;" %)((( 296 296 **Size(bytes)** 297 297 )))|=(% style="width: 50px;" %)**6**|=(% style="width: 25px;" %)2|=(% style="width: 25px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 80px;" %)**2**|=(% style="width: 80px;" %)**2**|=(% style="width: 80px;" %)**2**|=(% style="width: 40px;" %)**1** 298 -|(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H 2.4.1A0A0DeviceID"]]|(% 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" %)[[Soil Moisture>>||anchor="H2.4.5A0SoilMoisture"]]|(% style="width:133px" %)[[Soil Temperature>>||anchor="H2.4.6A0SoilTemperature"]]|(% style="width:159px" %)[[Soil Conductivity(EC)>>||anchor="H2.4.7A0SoilConductivity28EC29"]]|(% style="width:80px" %)[[Interrupt>>||anchor="H2.4.8A0DigitalInterrupt"]]293 +|(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H"]]|(% style="width:41px" %)[[Ver>>||anchor="H"]]|(% style="width:46px" %)[[BAT>>||anchor="H"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H"]]|(% style="width:108px" %)[[Soil Moisture>>||anchor="H"]]|(% style="width:133px" %)[[Soil Temperature>>||anchor="H"]]|(% style="width:159px" %)[[Soil Conductivity(EC)>>||anchor="H"]]|(% style="width:80px" %)[[Interrupt>>||anchor="H"]] 299 299 300 300 If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSE01 uplink data. 301 301 ... ... @@ -317,8 +317,6 @@ 317 317 * Soil Conductivity(EC) = 0x02f9 =761 uS /cm 318 318 * Interrupt: 0x00 = 0 319 319 320 - 321 - 322 322 == 2.4 Payload Explanation and Sensor Interface == 323 323 324 324 ... ... @@ -449,7 +449,7 @@ 449 449 (% 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]])**.** 450 450 451 451 452 -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. 445 +The lower four bits of this data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H"]] for the hardware and software set up. 453 453 454 454 455 455 Example: ... ... @@ -480,6 +480,7 @@ 480 480 [[image:image-20220708133731-5.png]] 481 481 482 482 476 + 483 483 ((( 484 484 (% style="color:blue" %)**Examples:** 485 485 ))) ... ... @@ -574,7 +574,7 @@ 574 574 [[www.dragino.com/downloads/index.php?dir=NB-IoT/NSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/Firmware/]] 575 575 576 576 577 -Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H 5.1200BHowtoUpgradeFirmware"]]571 +Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H"]] 578 578 579 579 580 580 ... ... @@ -662,151 +662,293 @@ 662 662 ))) 663 663 664 664 ((( 665 -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/]] 659 +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/]] 666 666 ))) 667 667 668 -[[image:1657261 278785-153.png]]662 +[[image:1657261119050-993.png]] 669 669 664 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]] 670 670 671 671 672 -= 4. Using the AT Commands = 673 673 674 -== 4.1668 +== 3.1 Access AT Commands == 675 675 676 -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/]] 677 677 671 +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. 678 678 679 - AT+<CMD>? : Helpon<CMD>673 +[[image:1654501986557-872.png||height="391" width="800"]] 680 680 681 -AT+<CMD> : Run <CMD> 682 682 683 - AT+<CMD>=<value>: Setthevalue676 +Or if you have below board, use below connection: 684 684 685 -AT+<CMD>=? : Get the value 686 686 679 +[[image:1654502005655-729.png||height="503" width="801"]] 687 687 681 + 682 + 683 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LSE01. LSE01 will output system info once power on as below: 684 + 685 + 686 + [[image:1654502050864-459.png||height="564" width="806"]] 687 + 688 + 689 +Below are the available commands, a more detailed AT Command manual can be found at [[AT Command Manual>>https://www.dropbox.com/sh/qr6vproz4z4kzjz/AAAD48h3OyWrU1hq_Cqm8jIwa?dl=0]]: [[https:~~/~~/www.dropbox.com/sh/qr6vproz4z4kzjz/AAAD48h3OyWrU1hq_Cqm8jIwa?dl=0>>https://www.dropbox.com/sh/qr6vproz4z4kzjz/AAAD48h3OyWrU1hq_Cqm8jIwa?dl=0]] 690 + 691 + 692 +(% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD>? **(%%) : Help on <CMD> 693 + 694 +(% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD> **(%%) : Run <CMD> 695 + 696 +(% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD>=<value>**(%%) : Set the value 697 + 698 +(% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD>=?**(%%) : Get the value 699 + 700 + 688 688 (% style="color:#037691" %)**General Commands**(%%) 689 689 690 -AT 703 +(% style="background-color:#dcdcdc" %)**AT**(%%) : Attention 691 691 692 -AT? 705 +(% style="background-color:#dcdcdc" %)**AT?**(%%) : Short Help 693 693 694 -ATZ 707 +(% style="background-color:#dcdcdc" %)**ATZ**(%%) : MCU Reset 695 695 696 -AT+TDC 709 +(% style="background-color:#dcdcdc" %)**AT+TDC**(%%) : Application Data Transmission Interval 697 697 698 -AT+CFG : Print all configurations 699 699 700 - AT+CFGMOD: Workingmode selection712 +(% style="color:#037691" %)**Keys, IDs and EUIs management** 701 701 702 -AT+I NTMOD:Setthe trigger interruptmode714 +(% style="background-color:#dcdcdc" %)**AT+APPEUI**(%%) : Application EUI 703 703 704 -AT+ 5VTSetextend the timeof5V power716 +(% style="background-color:#dcdcdc" %)**AT+APPKEY**(%%) : Application Key 705 705 706 -AT+P ROChooseagreement718 +(% style="background-color:#dcdcdc" %)**AT+APPSKEY**(%%) : Application Session Key 707 707 708 -AT+ WEIGREGet weightorsetweight to 0720 +(% style="background-color:#dcdcdc" %)**AT+DADDR**(%%) : Device Address 709 709 710 -AT+ WEIGAPGet or SettheGapValue of weight722 +(% style="background-color:#dcdcdc" %)**AT+DEUI**(%%) : Device EUI 711 711 712 -AT+ RXDL: Extendthe sendingandreceivingtime724 +(% style="background-color:#dcdcdc" %)**AT+NWKID**(%%) : Network ID (You can enter this command change only after successful network connection) 713 713 714 -AT+ CNTFACGettcountingparameters726 +(% style="background-color:#dcdcdc" %)**AT+NWKSKEY**(%%) : Network Session Key Joining and sending date on LoRa network 715 715 716 -AT+ SERVADDR:ServerAddress728 +(% style="background-color:#dcdcdc" %)**AT+CFM**(%%) : Confirm Mode 717 717 730 +(% style="background-color:#dcdcdc" %)**AT+CFS**(%%) : Confirm Status 718 718 719 -(% style="color:# 037691" %)**COAPManagement**732 +(% style="background-color:#dcdcdc" %)**AT+JOIN**(%%) : Join LoRa? Network 720 720 721 -AT+ URIsourceparameters734 +(% style="background-color:#dcdcdc" %)**AT+NJM**(%%) : LoRa? Network Join Mode 722 722 736 +(% style="background-color:#dcdcdc" %)**AT+NJS**(%%) : LoRa? Network Join Status 723 723 724 -(% style="color:# 037691" %)**UDPManagement**738 +(% style="background-color:#dcdcdc" %)**AT+RECV**(%%) : Print Last Received Data in Raw Format 725 725 726 -AT+C FM:Uploadconfirmationmode (onlyvalid forUDP)740 +(% style="background-color:#dcdcdc" %)**AT+RECVB**(%%) : Print Last Received Data in Binary Format 727 727 742 +(% style="background-color:#dcdcdc" %)**AT+SEND**(%%) : Send Text Data 728 728 729 -(% style="color:# 037691" %)**MQTTManagement**744 +(% style="background-color:#dcdcdc" %)**AT+SENB**(%%) : Send Hexadecimal Data 730 730 731 -AT+CLIENT : Get or Set MQTT client 732 732 733 - AT+UNAMEGetSetMQTT Username747 +(% style="color:#037691" %)**LoRa Network Management** 734 734 735 -AT+ PWDGetor SetMQTT password749 +(% style="background-color:#dcdcdc" %)**AT+ADR**(%%) : Adaptive Rate 736 736 737 -AT+ PUBTOPICGetorSetMQTTpublishtopic751 +(% style="background-color:#dcdcdc" %)**AT+CLASS**(%%) : LoRa Class(Currently only support class A 738 738 739 -AT+ SUBTOPIC :GetorSetMQTT subscriptiontopic753 +(% style="background-color:#dcdcdc" %)**AT+DCS**(%%) : Duty Cycle Setting 740 740 755 +(% style="background-color:#dcdcdc" %)**AT+DR**(%%) : Data Rate (Can Only be Modified after ADR=0) 741 741 742 -(% style="color:# 037691" %)**Information**757 +(% style="background-color:#dcdcdc" %)**AT+FCD**(%%) : Frame Counter Downlink 743 743 744 -AT+F DRctoryDataReset759 +(% style="background-color:#dcdcdc" %)**AT+FCU**(%%) : Frame Counter Uplink 745 745 746 -AT+ PWORDSerialAccessPassword761 +(% style="background-color:#dcdcdc" %)**AT+JN1DL**(%%) : Join Accept Delay1 747 747 763 +(% style="background-color:#dcdcdc" %)**AT+JN2DL**(%%) : Join Accept Delay2 748 748 765 +(% style="background-color:#dcdcdc" %)**AT+PNM**(%%) : Public Network Mode 749 749 750 -= 5.FAQ=767 +(% style="background-color:#dcdcdc" %)**AT+RX1DL**(%%) : Receive Delay1 751 751 752 -= =5.1HowtoUpgradeFirmware==769 +(% style="background-color:#dcdcdc" %)**AT+RX2DL**(%%) : Receive Delay2 753 753 771 +(% style="background-color:#dcdcdc" %)**AT+RX2DR**(%%) : Rx2 Window Data Rate 754 754 773 +(% style="background-color:#dcdcdc" %)**AT+RX2FQ**(%%) : Rx2 Window Frequency 774 + 775 +(% style="background-color:#dcdcdc" %)**AT+TXP**(%%) : Transmit Power 776 + 777 +(% style="background-color:#dcdcdc" %)**AT+ MOD**(%%) : Set work mode 778 + 779 + 780 +(% style="color:#037691" %)**Information** 781 + 782 +(% style="background-color:#dcdcdc" %)**AT+RSSI**(%%) : RSSI of the Last Received Packet 783 + 784 +(% style="background-color:#dcdcdc" %)**AT+SNR**(%%) : SNR of the Last Received Packet 785 + 786 +(% style="background-color:#dcdcdc" %)**AT+VER**(%%) : Image Version and Frequency Band 787 + 788 +(% style="background-color:#dcdcdc" %)**AT+FDR**(%%) : Factory Data Reset 789 + 790 +(% style="background-color:#dcdcdc" %)**AT+PORT**(%%) : Application Port 791 + 792 +(% style="background-color:#dcdcdc" %)**AT+CHS**(%%) : Get or Set Frequency (Unit: Hz) for Single Channel Mode 793 + 794 + (% style="background-color:#dcdcdc" %)**AT+CHE**(%%) : Get or Set eight channels mode, Only for US915, AU915, CN470 795 + 796 + 797 += 4. FAQ = 798 + 799 +== 4.1 How to change the LoRa Frequency Bands/Region? == 800 + 755 755 ((( 756 -User can upgrade the firmware for 1) bug fix, 2) new feature release. 802 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.10200BFirmwareChangeLog"]]. 803 +When downloading the images, choose the required image file for download. 757 757 ))) 758 758 759 759 ((( 760 - Pleasesee 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]]807 + 761 761 ))) 762 762 763 763 ((( 764 - (%style="color:red"%)Notice,NSE01andLSE01share thememotherboard.Theyuse thesameconnection andmethodto update.811 +How to set up LSE01 to work in 8 channel mode By default, the frequency bands US915, AU915, CN470 work in 72 frequencies. Many gateways are 8 channel gateways, and in this case, the OTAA join time and uplink schedule is long and unpredictable while the end node is hopping in 72 frequencies. 765 765 ))) 766 766 814 +((( 815 + 816 +))) 767 767 818 +((( 819 +You can configure the end node to work in 8 channel mode by using the AT+CHE command. The 500kHz channels are always included for OTAA. 820 +))) 768 768 769 -= 6. Trouble Shooting = 822 +((( 823 + 824 +))) 770 770 771 -== 6.1 Connection problem when uploading firmware == 826 +((( 827 +For example, in **US915** band, the frequency table is as below. By default, the end node will use all channels (0~~71) for OTAA Join process. After the OTAA Join, the end node will use these all channels (0~~71) to send uplink packets. 828 +))) 772 772 830 +[[image:image-20220606154726-3.png]] 773 773 774 -(% class="wikigeneratedid" %) 832 + 833 +When you use the TTN network, the US915 frequency bands use are: 834 + 835 +* 903.9 - SF7BW125 to SF10BW125 836 +* 904.1 - SF7BW125 to SF10BW125 837 +* 904.3 - SF7BW125 to SF10BW125 838 +* 904.5 - SF7BW125 to SF10BW125 839 +* 904.7 - SF7BW125 to SF10BW125 840 +* 904.9 - SF7BW125 to SF10BW125 841 +* 905.1 - SF7BW125 to SF10BW125 842 +* 905.3 - SF7BW125 to SF10BW125 843 +* 904.6 - SF8BW500 844 + 775 775 ((( 776 -(% style="font-size:14px" %)**Please see: **(%%)[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting>>http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting||style="background-color: rgb(255, 255, 255); font-size: 14px;"]] 846 +Because the end node is now hopping in 72 frequency, it makes it difficult for the devices to Join the TTN network and uplink data. To solve this issue, you can access the device via the AT commands and run: 847 + 848 +* (% style="color:#037691" %)**AT+CHE=2** 849 +* (% style="color:#037691" %)**ATZ** 777 777 ))) 778 778 852 +((( 853 + 779 779 855 +to set the end node to work in 8 channel mode. The device will work in Channel 8-15 & 64-71 for OTAA, and channel 8-15 for Uplink. 856 +))) 780 780 781 -== 6.2 AT Command input doesn't work == 858 +((( 859 + 860 +))) 782 782 783 783 ((( 863 +The **AU915** band is similar. Below are the AU915 Uplink Channels. 864 +))) 865 + 866 +[[image:image-20220606154825-4.png]] 867 + 868 + 869 +== 4.2 Can I calibrate LSE01 to different soil types? == 870 + 871 +LSE01 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/index.php?dir=LoRa_End_Node/LSE01/&file=Calibrate_to_other_Soil_20220605.pdf]]. 872 + 873 + 874 += 5. Trouble Shooting = 875 + 876 +== 5.1 Why I can't join TTN in US915 / AU915 bands? == 877 + 878 +It is due to channel mapping. Please see the [[Eight Channel Mode>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.19EightChannelMode"]] section above for details. 879 + 880 + 881 +== 5.2 AT Command input doesn't work == 882 + 883 +((( 784 784 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. 785 785 ))) 786 786 787 787 888 +== 5.3 Device rejoin in at the second uplink packet == 788 788 789 -= 7. OrderInfo=890 +(% style="color:#4f81bd" %)**Issue describe as below:** 790 790 892 +[[image:1654500909990-784.png]] 791 791 792 -Part Number**:** (% style="color:#4f81bd" %)**NSE01** 793 793 895 +(% style="color:#4f81bd" %)**Cause for this issue:** 794 794 897 +((( 898 +The fuse on LSE01 is not large enough, some of the soil probe require large current up to 5v 800mA, in a short pulse. When this happen, it cause the device reboot so user see rejoin. 899 +))) 900 + 901 + 902 +(% style="color:#4f81bd" %)**Solution: ** 903 + 904 +All new shipped LSE01 after 2020-May-30 will have this to fix. For the customer who see this issue, please bypass the fuse as below: 905 + 906 +[[image:1654500929571-736.png||height="458" width="832"]] 907 + 908 + 909 += 6. Order Info = 910 + 911 + 912 +Part Number**:** (% style="color:#4f81bd" %)**LSE01-XX-YY** 913 + 914 + 915 +(% style="color:#4f81bd" %)**XX**(%%)**:** The default frequency band 916 + 917 +* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band 918 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band 919 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band 920 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band 921 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band 922 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band 923 +* (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band 924 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 925 + 926 +(% style="color:#4f81bd" %)**YY**(%%)**: **Battery Option 927 + 928 +* (% style="color:red" %)**4**(%%): 4000mAh battery 929 +* (% style="color:red" %)**8**(%%): 8500mAh battery 930 + 795 795 (% class="wikigeneratedid" %) 796 796 ((( 797 797 798 798 ))) 799 799 800 -= 8.936 += 7. Packing Info = 801 801 802 802 ((( 803 803 804 804 805 805 (% style="color:#037691" %)**Package Includes**: 942 +))) 806 806 807 - 808 -* NSE01 NB-IoT Soil Moisture & EC Sensor x 1 809 -* External antenna x 1 944 +* ((( 945 +LSE01 LoRaWAN Soil Moisture & EC Sensor x 1 810 810 ))) 811 811 812 812 ((( ... ... @@ -813,20 +813,24 @@ 813 813 814 814 815 815 (% style="color:#037691" %)**Dimension and weight**: 952 +))) 816 816 817 - 818 -* Size: 195 x 125 x 55 mm 819 -* Weight: 420g 954 +* ((( 955 +Device Size: cm 820 820 ))) 957 +* ((( 958 +Device Weight: g 959 +))) 960 +* ((( 961 +Package Size / pcs : cm 962 +))) 963 +* ((( 964 +Weight / pcs : g 821 821 822 -((( 823 823 824 - 825 - 826 - 827 827 ))) 828 828 829 -= 9.969 += 8. Support = 830 830 831 831 * 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. 832 832 * 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]]