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 ... ... @@ -60,7 +60,6 @@ 60 60 * Micro SIM card slot for NB-IoT SIM 61 61 * 8500mAh Battery for long term use 62 62 63 - 64 64 == 1.3 Specification == 65 65 66 66 ... ... @@ -78,7 +78,7 @@ 78 78 * - B20 @H-FDD: 800MHz 79 79 * - B28 @H-FDD: 700MHz 80 80 81 - Probe(% style="color:#037691" %)**79 +(% style="color:#037691" %)**Probe Specification:** 82 82 83 83 Measure Volume: Base on the centra pin of the probe, a cylinder with 7cm diameter and 10cm height. 84 84 ... ... @@ -292,7 +292,7 @@ 292 292 |=(% style="width: 50px;" %)((( 293 293 **Size(bytes)** 294 294 )))|=(% 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** 295 -|(% 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"]] 296 296 297 297 If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSE01 uplink data. 298 298 ... ... @@ -314,7 +314,6 @@ 314 314 * Soil Conductivity(EC) = 0x02f9 =761 uS /cm 315 315 * Interrupt: 0x00 = 0 316 316 317 - 318 318 == 2.4 Payload Explanation and Sensor Interface == 319 319 320 320 ... ... @@ -445,7 +445,7 @@ 445 445 (% 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]])**.** 446 446 447 447 448 -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. 449 449 450 450 451 451 Example: ... ... @@ -476,6 +476,7 @@ 476 476 [[image:image-20220708133731-5.png]] 477 477 478 478 476 + 479 479 ((( 480 480 (% style="color:blue" %)**Examples:** 481 481 ))) ... ... @@ -570,7 +570,7 @@ 570 570 [[www.dragino.com/downloads/index.php?dir=NB-IoT/NSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/Firmware/]] 571 571 572 572 573 -Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H 5.1200BHowtoUpgradeFirmware"]]571 +Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H"]] 574 574 575 575 576 576 ... ... @@ -588,7 +588,7 @@ 588 588 The battery related documents as below: 589 589 590 590 * [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]] 591 -* [[Lithium-Thionyl Chloride Battery 589 +* [[Lithium-Thionyl Chloride Battery>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]][[ datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]] 592 592 * [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]] 593 593 594 594 ((( ... ... @@ -658,151 +658,293 @@ 658 658 ))) 659 659 660 660 ((( 661 -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/]] 662 662 ))) 663 663 664 -[[image:1657261 278785-153.png]]662 +[[image:1657261119050-993.png]] 665 665 664 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]] 666 666 667 667 668 -= 4. Using the AT Commands = 669 669 670 -== 4.1668 +== 3.1 Access AT Commands == 671 671 672 -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/]] 673 673 671 +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. 674 674 675 - AT+<CMD>? : Helpon<CMD>673 +[[image:1654501986557-872.png||height="391" width="800"]] 676 676 677 -AT+<CMD> : Run <CMD> 678 678 679 - AT+<CMD>=<value>: Setthevalue676 +Or if you have below board, use below connection: 680 680 681 -AT+<CMD>=? : Get the value 682 682 679 +[[image:1654502005655-729.png||height="503" width="801"]] 683 683 681 + 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 + 684 684 (% style="color:#037691" %)**General Commands**(%%) 685 685 686 -AT 703 +(% style="background-color:#dcdcdc" %)**AT**(%%) : Attention 687 687 688 -AT? 705 +(% style="background-color:#dcdcdc" %)**AT?**(%%) : Short Help 689 689 690 -ATZ 707 +(% style="background-color:#dcdcdc" %)**ATZ**(%%) : MCU Reset 691 691 692 -AT+TDC 709 +(% style="background-color:#dcdcdc" %)**AT+TDC**(%%) : Application Data Transmission Interval 693 693 694 -AT+CFG : Print all configurations 695 695 696 - AT+CFGMOD: Workingmode selection712 +(% style="color:#037691" %)**Keys, IDs and EUIs management** 697 697 698 -AT+I NTMOD:Setthe trigger interruptmode714 +(% style="background-color:#dcdcdc" %)**AT+APPEUI**(%%) : Application EUI 699 699 700 -AT+ 5VTSetextend the timeof5V power716 +(% style="background-color:#dcdcdc" %)**AT+APPKEY**(%%) : Application Key 701 701 702 -AT+P ROChooseagreement718 +(% style="background-color:#dcdcdc" %)**AT+APPSKEY**(%%) : Application Session Key 703 703 704 -AT+ WEIGREGet weightorsetweight to 0720 +(% style="background-color:#dcdcdc" %)**AT+DADDR**(%%) : Device Address 705 705 706 -AT+ WEIGAPGet or SettheGapValue of weight722 +(% style="background-color:#dcdcdc" %)**AT+DEUI**(%%) : Device EUI 707 707 708 -AT+ RXDL: Extendthe sendingandreceivingtime724 +(% style="background-color:#dcdcdc" %)**AT+NWKID**(%%) : Network ID (You can enter this command change only after successful network connection) 709 709 710 -AT+ CNTFACGettcountingparameters726 +(% style="background-color:#dcdcdc" %)**AT+NWKSKEY**(%%) : Network Session Key Joining and sending date on LoRa network 711 711 712 -AT+ SERVADDR:ServerAddress728 +(% style="background-color:#dcdcdc" %)**AT+CFM**(%%) : Confirm Mode 713 713 730 +(% style="background-color:#dcdcdc" %)**AT+CFS**(%%) : Confirm Status 714 714 715 -(% style="color:# 037691" %)**COAPManagement**732 +(% style="background-color:#dcdcdc" %)**AT+JOIN**(%%) : Join LoRa? Network 716 716 717 -AT+ URIsourceparameters734 +(% style="background-color:#dcdcdc" %)**AT+NJM**(%%) : LoRa? Network Join Mode 718 718 736 +(% style="background-color:#dcdcdc" %)**AT+NJS**(%%) : LoRa? Network Join Status 719 719 720 -(% style="color:# 037691" %)**UDPManagement**738 +(% style="background-color:#dcdcdc" %)**AT+RECV**(%%) : Print Last Received Data in Raw Format 721 721 722 -AT+C FM:Uploadconfirmationmode (onlyvalid forUDP)740 +(% style="background-color:#dcdcdc" %)**AT+RECVB**(%%) : Print Last Received Data in Binary Format 723 723 742 +(% style="background-color:#dcdcdc" %)**AT+SEND**(%%) : Send Text Data 724 724 725 -(% style="color:# 037691" %)**MQTTManagement**744 +(% style="background-color:#dcdcdc" %)**AT+SENB**(%%) : Send Hexadecimal Data 726 726 727 -AT+CLIENT : Get or Set MQTT client 728 728 729 - AT+UNAMEGetSetMQTT Username747 +(% style="color:#037691" %)**LoRa Network Management** 730 730 731 -AT+ PWDGetor SetMQTT password749 +(% style="background-color:#dcdcdc" %)**AT+ADR**(%%) : Adaptive Rate 732 732 733 -AT+ PUBTOPICGetorSetMQTTpublishtopic751 +(% style="background-color:#dcdcdc" %)**AT+CLASS**(%%) : LoRa Class(Currently only support class A 734 734 735 -AT+ SUBTOPIC :GetorSetMQTT subscriptiontopic753 +(% style="background-color:#dcdcdc" %)**AT+DCS**(%%) : Duty Cycle Setting 736 736 755 +(% style="background-color:#dcdcdc" %)**AT+DR**(%%) : Data Rate (Can Only be Modified after ADR=0) 737 737 738 -(% style="color:# 037691" %)**Information**757 +(% style="background-color:#dcdcdc" %)**AT+FCD**(%%) : Frame Counter Downlink 739 739 740 -AT+F DRctoryDataReset759 +(% style="background-color:#dcdcdc" %)**AT+FCU**(%%) : Frame Counter Uplink 741 741 742 -AT+ PWORDSerialAccessPassword761 +(% style="background-color:#dcdcdc" %)**AT+JN1DL**(%%) : Join Accept Delay1 743 743 763 +(% style="background-color:#dcdcdc" %)**AT+JN2DL**(%%) : Join Accept Delay2 744 744 765 +(% style="background-color:#dcdcdc" %)**AT+PNM**(%%) : Public Network Mode 745 745 746 -= 5.FAQ=767 +(% style="background-color:#dcdcdc" %)**AT+RX1DL**(%%) : Receive Delay1 747 747 748 -= =5.1HowtoUpgradeFirmware==769 +(% style="background-color:#dcdcdc" %)**AT+RX2DL**(%%) : Receive Delay2 749 749 771 +(% style="background-color:#dcdcdc" %)**AT+RX2DR**(%%) : Rx2 Window Data Rate 750 750 773 +(% 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 + 751 751 ((( 752 -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. 753 753 ))) 754 754 755 755 ((( 756 - 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 + 757 757 ))) 758 758 759 759 ((( 760 - (%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. 761 761 ))) 762 762 814 +((( 815 + 816 +))) 763 763 818 +((( 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 +))) 764 764 765 -= 6. Trouble Shooting = 822 +((( 823 + 824 +))) 766 766 767 -== 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 +))) 768 768 830 +[[image:image-20220606154726-3.png]] 769 769 770 -(% 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 + 771 771 ((( 772 -(% 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** 773 773 ))) 774 774 852 +((( 853 + 775 775 855 +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 +))) 776 776 777 -== 6.2 AT Command input doesn't work == 858 +((( 859 + 860 +))) 778 778 779 779 ((( 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 +((( 780 780 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. 781 781 ))) 782 782 783 783 888 +== 5.3 Device rejoin in at the second uplink packet == 784 784 785 -= 7. OrderInfo=890 +(% style="color:#4f81bd" %)**Issue describe as below:** 786 786 892 +[[image:1654500909990-784.png]] 787 787 788 -Part Number**:** (% style="color:#4f81bd" %)**NSE01** 789 789 895 +(% style="color:#4f81bd" %)**Cause for this issue:** 790 790 897 +((( 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 + 791 791 (% class="wikigeneratedid" %) 792 792 ((( 793 793 794 794 ))) 795 795 796 -= 8.936 += 7. Packing Info = 797 797 798 798 ((( 799 799 800 800 801 801 (% style="color:#037691" %)**Package Includes**: 942 +))) 802 802 803 - 804 -* NSE01 NB-IoT Soil Moisture & EC Sensor x 1 805 -* External antenna x 1 944 +* ((( 945 +LSE01 LoRaWAN Soil Moisture & EC Sensor x 1 806 806 ))) 807 807 808 808 ((( ... ... @@ -809,20 +809,24 @@ 809 809 810 810 811 811 (% style="color:#037691" %)**Dimension and weight**: 952 +))) 812 812 813 - 814 -* Size: 195 x 125 x 55 mm 815 -* Weight: 420g 954 +* ((( 955 +Device Size: cm 816 816 ))) 957 +* ((( 958 +Device Weight: g 959 +))) 960 +* ((( 961 +Package Size / pcs : cm 962 +))) 963 +* ((( 964 +Weight / pcs : g 817 817 818 -((( 819 819 820 - 821 - 822 - 823 823 ))) 824 824 825 -= 9.969 += 8. Support = 826 826 827 827 * 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. 828 828 * 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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