Changes for page PS-LB/LS -- LoRaWAN Air Water Pressure Sensor User Manual
Last modified by Xiaoling on 2025/06/10 15:28
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... ... @@ -4,6 +4,7 @@ 4 4 5 5 **Table of Contents:** 6 6 7 +{{toc/}} 7 7 8 8 9 9 ... ... @@ -10,28 +10,20 @@ 10 10 11 11 12 12 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 21 = 1. Introduction = 22 22 23 23 == 1.1 What is LoRaWAN Pressure Sensor == 24 24 25 25 26 -The Dragino PS-LB series sensors are **LoRaWAN Pressure Sensor** for Internet of Things solution. PS-LB can measure Air, Water pressure and liquid level and upload the sensor data via wireless to LoRaWAN IoT server. 19 +The Dragino PS-LB series sensors are **(% style="color:blue" %)LoRaWAN Pressure Sensor**(%%) for Internet of Things solution. PS-LB can measure Air, Water pressure and liquid level and upload the sensor data via wireless to LoRaWAN IoT server. 27 27 28 -The PS-LB series sensors include **Thread Installation Type** and **Immersion Type**, it supports different pressure range which can be used for different measurement requirement. 21 +The PS-LB series sensors include **(% style="color:blue" %)Thread Installation Type**(%%) and **(% style="color:blue" %)Immersion Type**(%%), it supports different pressure range which can be used for different measurement requirement. 29 29 30 30 The LoRa wireless technology used in PS-LB 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. 31 31 32 32 PS-LB supports BLE configure and wireless OTA update which make user easy to use. 33 33 34 -PS-LB is powered by **8500mAh Li-SOCI2 battery**, it is designed for long term use up to 5 years. 27 +PS-LB is powered by **(% style="color:blue" %)8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years. 35 35 36 36 Each PS-LB 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. 37 37 ... ... @@ -59,18 +59,18 @@ 59 59 == 1.3 Specification == 60 60 61 61 62 -**Micro Controller:** 55 +**(% style="color:#037691" %)Micro Controller:** 63 63 64 64 * MCU: 48Mhz ARM 65 65 * Flash: 256KB 66 66 * RAM: 64KB 67 67 68 -**Common DC Characteristics:** 61 +**(% style="color:#037691" %)Common DC Characteristics:** 69 69 70 70 * Supply Voltage: 2.5v ~~ 3.6v 71 71 * Operating Temperature: -40 ~~ 85°C 72 72 73 -**LoRa Spec:** 66 +**(% style="color:#037691" %)LoRa Spec:** 74 74 75 75 * Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz 76 76 * Max +22 dBm constant RF output vs. ... ... @@ -77,19 +77,19 @@ 77 77 * RX sensitivity: down to -139 dBm. 78 78 * Excellent blocking immunity 79 79 80 -**Current Input Measuring :** 73 +**(% style="color:#037691" %)Current Input Measuring :** 81 81 82 82 * Range: 0 ~~ 20mA 83 83 * Accuracy: 0.02mA 84 84 * Resolution: 0.001mA 85 85 86 -**Voltage Input Measuring:** 79 +**(% style="color:#037691" %)Voltage Input Measuring:** 87 87 88 88 * Range: 0 ~~ 30v 89 89 * Accuracy: 0.02v 90 90 * Resolution: 0.001v 91 91 92 -**Battery:** 85 +**(% style="color:#037691" %)Battery:** 93 93 94 94 * Li/SOCI2 un-chargeable battery 95 95 * Capacity: 8500mAh ... ... @@ -97,7 +97,7 @@ 97 97 * Max continuously current: 130mA 98 98 * Max boost current: 2A, 1 second 99 99 100 -**Power Consumption** 93 +**(% style="color:#037691" %)Power Consumption** 101 101 102 102 * Sleep Mode: 5uA @ 3.3v 103 103 * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm ... ... @@ -582,7 +582,7 @@ 582 582 583 583 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: 584 584 585 -[[http:~~/~~/wiki.dragino.com/in dex.php?title=End_Device_Downlink_Command>>url:http://wiki.dragino.com/index.php?title=End_Device_Downlink_Command]]578 +[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]] 586 586 587 587 588 588 * **Commands special design for PS-LB** ... ... @@ -590,13 +590,14 @@ 590 590 These commands only valid for PS-LB, as below: 591 591 592 592 593 -1. 594 -11. Set Transmit Interval Time 586 +== 3.1 Set Transmit Interval Time == 595 595 588 + 596 596 Feature: Change LoRaWAN End Node Transmit Interval. 597 597 598 598 **AT Command: AT+TDC** 599 599 593 +(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %) 600 600 |**Command Example**|**Function**|**Response** 601 601 |AT+TDC=?|Show current transmit Interval|((( 602 602 30000 ... ... @@ -621,13 +621,14 @@ 621 621 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 622 622 623 623 624 -1. 625 -11. Set Interrupt Mode 618 +== 3.2 Set Interrupt Mode == 626 626 620 + 627 627 Feature, Set Interrupt mode for GPIO_EXIT. 628 628 629 629 **AT Command: AT+INTMOD** 630 630 625 +(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %) 631 631 |**Command Example**|**Function**|**Response** 632 632 |AT+INTMOD=?|Show current interrupt mode|((( 633 633 0 ... ... @@ -639,10 +639,13 @@ 639 639 |AT+INTMOD=2|((( 640 640 Set Transmit Interval 641 641 642 -1. (Disable Interrupt), 643 -1. (Trigger by rising and falling edge), 644 -1. (Trigger by falling edge) 645 -1. (Trigger by rising edge) 637 +~1. (Disable Interrupt), 638 + 639 +2. (Trigger by rising and falling edge), 640 + 641 +3. (Trigger by falling edge) 642 + 643 +4. (Trigger by rising edge) 646 646 )))|OK 647 647 648 648 **Downlink Command: 0x06** ... ... @@ -654,74 +654,82 @@ 654 654 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode 655 655 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 656 656 657 -1. 658 -11. Set the output time 659 659 656 + 657 +== 3.3 Set the output time == 658 + 659 + 660 660 Feature, Control the output 3V3 , 5V or 12V. 661 661 662 662 **AT Command: AT+3V3T** 663 663 664 -|**Command Example**|**Function**|**Response** 665 -|AT+3V3T=?|Show 3V3 open time.|((( 664 +(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %) 665 +|(% style="width:156px" %)**Command Example**|(% style="width:236px" %)**Function**|(% style="width:117px" %)**Response** 666 +|(% style="width:156px" %)AT+3V3T=?|(% style="width:236px" %)Show 3V3 open time.|(% style="width:117px" %)((( 666 666 0 667 667 668 668 OK 669 669 ))) 670 -|AT+3V3T=0|Normally open 3V3 power supply.|((( 671 +|(% style="width:156px" %)AT+3V3T=0|(% style="width:236px" %)Normally open 3V3 power supply.|(% style="width:117px" %)((( 671 671 OK 672 672 673 673 default setting 674 674 ))) 675 -|AT+3V3T=1000|Close after a delay of 1000 milliseconds.|((( 676 +|(% style="width:156px" %)AT+3V3T=1000|(% style="width:236px" %)Close after a delay of 1000 milliseconds.|(% style="width:117px" %)((( 676 676 OK 677 677 678 678 679 679 ))) 680 -|AT+3V3T=65535|Normally closed 3V3 power supply.|((( 681 +|(% style="width:156px" %)AT+3V3T=65535|(% style="width:236px" %)Normally closed 3V3 power supply.|(% style="width:117px" %)((( 681 681 OK 682 682 683 683 684 684 ))) 685 685 687 + 686 686 **AT Command: AT+5VT** 687 687 688 -|**Command Example**|**Function**|**Response** 689 -|AT+5VT=?|Show 5V open time.|((( 690 +(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %) 691 +|(% style="width:158px" %)**Command Example**|(% style="width:232px" %)**Function**|(% style="width:119px" %)**Response** 692 +|(% style="width:158px" %)AT+5VT=?|(% style="width:232px" %)Show 5V open time.|(% style="width:119px" %)((( 690 690 0 691 691 692 692 OK 693 693 ))) 694 -|AT+5VT=0|Normally closed 5V power supply.|((( 697 +|(% style="width:158px" %)AT+5VT=0|(% style="width:232px" %)Normally closed 5V power supply.|(% style="width:119px" %)((( 695 695 OK 696 696 697 697 default setting 698 698 ))) 699 -|AT+5VT=1000|Close after a delay of 1000 milliseconds.|((( 702 +|(% style="width:158px" %)AT+5VT=1000|(% style="width:232px" %)Close after a delay of 1000 milliseconds.|(% style="width:119px" %)((( 700 700 OK 701 701 702 702 703 703 ))) 704 -|AT+5VT=65535|Normally open 5V power supply.|((( 707 +|(% style="width:158px" %)AT+5VT=65535|(% style="width:232px" %)Normally open 5V power supply.|(% style="width:119px" %)((( 705 705 OK 706 706 707 707 708 708 ))) 709 709 713 + 710 710 **AT Command: AT+12VT** 711 711 712 -|**Command Example**|**Function**|**Response** 713 -|AT+12VT=?|Show 12V open time.|((( 716 +(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %) 717 +|(% style="width:156px" %)**Command Example**|(% style="width:268px" %)**Function**|**Response** 718 +|(% style="width:156px" %)AT+12VT=?|(% style="width:268px" %)Show 12V open time.|((( 714 714 0 715 715 716 716 OK 717 717 ))) 718 -|AT+12VT=0|Normally closed 12V power supply.|OK 719 -|AT+12VT=500|Close after a delay of 500 milliseconds.|((( 723 +|(% style="width:156px" %)AT+12VT=0|(% style="width:268px" %)Normally closed 12V power supply.|OK 724 +|(% style="width:156px" %)AT+12VT=500|(% style="width:268px" %)Close after a delay of 500 milliseconds.|((( 720 720 OK 721 721 722 722 723 723 ))) 724 724 730 + 725 725 **Downlink Command: 0x07** 726 726 727 727 Format: Command Code (0x07) followed by 3 bytes. ... ... @@ -735,24 +735,27 @@ 735 735 * Example 5: Downlink Payload: 070301F4 -> AT+12VT=500 736 736 * Example 6: Downlink Payload: 07030000 -> AT+12VT=0 737 737 738 -1. 739 -11. Set the Probe Model 740 740 745 + 746 +== 3.4 Set the Probe Model == 747 + 748 + 741 741 **AT Command: AT** **+PROBE** 742 742 743 -|**Command Example**|**Function**|**Response** 744 -|AT +PROBE =?|Get or Set the probe model.|((( 751 +(% border="1" cellspacing="4" style="background-color:#f7faff; color:black; width:510px" %) 752 +|(% style="width:157px" %)**Command Example**|(% style="width:267px" %)**Function**|**Response** 753 +|(% style="width:157px" %)AT +PROBE =?|(% style="width:267px" %)Get or Set the probe model.|((( 745 745 0 746 746 747 747 OK 748 748 ))) 749 -|AT +PROBE =0003|Set water depth sensor mode, 3m type.|OK 750 -|AT +PROBE =0101|Set pressure transmitters mode, first type.|((( 758 +|(% style="width:157px" %)AT +PROBE =0003|(% style="width:267px" %)Set water depth sensor mode, 3m type.|OK 759 +|(% style="width:157px" %)AT +PROBE =0101|(% style="width:267px" %)Set pressure transmitters mode, first type.|((( 751 751 OK 752 752 753 753 754 754 ))) 755 -|AT +PROBE =0000|Initial state, no settings.|((( 764 +|(% style="width:157px" %)AT +PROBE =0000|(% style="width:267px" %)Initial state, no settings.|((( 756 756 OK 757 757 758 758 ... ... @@ -767,15 +767,17 @@ 767 767 768 768 769 769 770 -1. Battery & how to replace 771 -11. Battery Type 779 += 4. Battery & how to replace = 772 772 773 - PS-LBis equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]].The batteryis un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This typeof battery is commonly used in IoT target for long-term running, such as water meter.781 +== 4.1 Battery Type == 774 774 775 775 784 +PS-LB is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>https://www.dropbox.com/sh/w9l2oa3ytpculph/AAAPtt-apH4lYfCj-2Y6lHvQa?dl=0]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter. 785 + 786 + 776 776 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance. 777 777 778 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]789 +[[image:1675146710956-626.png]] 779 779 780 780 781 781 Minimum Working Voltage for the PS-LB: ... ... @@ -783,17 +783,16 @@ 783 783 PS-LB: 2.45v ~~ 3.6v 784 784 785 785 786 -1. 787 -11. Replace Battery 797 +== 4.2 Replace Battery == 788 788 799 + 789 789 Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery. 790 790 791 791 And make sure the positive and negative pins match. 792 792 793 793 805 +== 4.3 Power Consumption Analyze == 794 794 795 -1. 796 -11. Power Consumption Analyze 797 797 798 798 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. 799 799 ... ... @@ -801,12 +801,12 @@ 801 801 Instruction to use as below: 802 802 803 803 804 -Step 1: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: 814 +**Step 1:** Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: 805 805 806 -[[https:~~/~~/www.dr agino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]816 +[[https:~~/~~/www.dropbox.com/sh/zwex6i331j5oeq2/AACIMf9f_v2qsJ39CuMQ5Py_a?dl=0>>https://www.dropbox.com/sh/zwex6i331j5oeq2/AACIMf9f_v2qsJ39CuMQ5Py_a?dl=0]] 807 807 808 808 809 -Step 2: Open it and choose 819 +**Step 2:** Open it and choose 810 810 811 811 * Product Model 812 812 * Uplink Interval ... ... @@ -814,99 +814,80 @@ 814 814 815 815 And the Life expectation in difference case will be shown on the right. 816 816 817 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]827 +[[image:1675146895108-304.png]] 818 818 819 819 820 820 The battery related documents as below: 821 821 822 -* [[Battery Dimension>> url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],823 -* [[Lithium-Thionyl Chloride Battery >>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/ER18505_datasheet-EN.pdf]]datasheet,[[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/ER18505_datasheet_PM-ER18505-S-02-LF_EN.pdf]]824 -* [[Lithium-ion Battery-Capacitor datasheet>> url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]832 +* [[Battery Dimension>>https://www.dropbox.com/s/ox5g9njwjle7aw3/LSN50-Battery-Dimension.pdf?dl=0]], 833 +* [[Lithium-Thionyl Chloride Battery datasheet, Tech Spec>>https://www.dropbox.com/sh/d4oyfnp8o94180o/AABQewCNSh5GPeQH86UxRgQQa?dl=0]] 834 +* [[Lithium-ion Battery-Capacitor datasheet>>https://www.dropbox.com/s/791gjes2lcbfi1p/SPC_1520_datasheet.jpg?dl=0]], [[Tech Spec>>https://www.dropbox.com/s/4pkepr9qqqvtzf2/SPC1520%20Technical%20Specification20171123.pdf?dl=0]] 825 825 826 -|((( 827 -JST-XH-2P connector 828 -))) 836 +[[image:image-20230131145708-3.png]] 829 829 830 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] 831 831 839 +=== 4.3.1 Battery Note === 832 832 833 833 834 -1. 835 -11. 836 -111. Battery Note 837 - 838 838 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. 839 839 840 840 841 -1. 842 -11. 843 -111. Replace the battery 845 +=== 4.3.2 Replace the battery === 844 844 845 -You can change the battery in the PS-LB.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board. 846 846 848 +You can change the battery in the PS-LB.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won't be voltage drop between battery and main board. 847 847 848 -The default battery pack of PS-LB includes a ER26500 plus super capacitor. If user can ’t find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)850 +The default battery pack of PS-LB includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes) 849 849 850 850 853 += 5. Remote Configure device = 851 851 855 +== 5.1 Connect via BLE == 852 852 853 853 858 +Please see this instruction for how to configure via BLE: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]] 854 854 855 -1. Remote Configure device 856 -11. Connect via BLE 857 857 858 - Pleaseseethisinstructionfor howtoconfigure via BLE:861 +== 5.2 AT Command Set == 859 859 860 -[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]] 861 861 862 862 863 -1. 864 -11. AT Command Set 865 += 6. OTA firmware update = 865 865 866 -1. OTA firmware update 867 867 868 -Please see this link for how to do OTA firmware update. 868 +Please see this link for how to do OTA firmware update: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]] 869 869 870 -[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]] 871 871 871 += 7. FAQ = 872 872 873 +== 7.1 How to use AT Command to access device? == 873 873 874 874 875 - 876 -1. FAQ 877 -11. How to use AT Command to access device? 878 - 879 879 See: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]] 880 880 881 881 882 -1. 883 -11. How to update firmware via UART port? 879 +== 7.2 How to update firmware via UART port? == 884 884 885 -See: 886 886 887 -[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]] 882 +See: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]] 888 888 889 889 890 -1. 891 -11. How to change the LoRa Frequency Bands/Region 885 +== 7.3 How to change the LoRa Frequency Bands/Region? == 892 892 893 -You can follow the instructions for [[how to upgrade image>>path:#3ygebqi]]. 887 + 888 +You can follow the instructions for [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]. 894 894 When downloading the images, choose the required image file for download. 895 895 896 896 892 += 8. Order Info = 897 897 898 898 895 +[[image:image-20230131153105-4.png]] 899 899 900 -1. Order Info 901 901 902 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]898 += 9. Packing Info = 903 903 904 904 905 - 906 - 907 - 908 -1. Packing Info 909 - 910 910 **Package Includes**: 911 911 912 912 * PS-LB LoRaWAN Pressure Sensor ... ... @@ -920,11 +920,10 @@ 920 920 921 921 922 922 923 -1. Support914 += 10. Support = 924 924 916 + 925 925 * 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. 926 -* 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 918 +* 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]] 927 927 928 -[[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]] 929 - 930 930
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