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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 173.3
edited by Xiaoling
on 2022/06/15 10:11
Change comment: There is no comment for this version
To version 174.9
edited by Xiaoling
on 2022/06/15 10:43
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -198,7 +198,6 @@
198 198  * Smart liquid control solution.
199 199  * Smart liquefied gas solution.
200 200  
201 -
202 202  == 1.7  Precautions ==
203 203  
204 204  * At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
... ... @@ -205,7 +205,6 @@
205 205  * For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
206 206  * When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.
207 207  
208 -
209 209  == 1.8  Pin mapping and power on ==
210 210  
211 211  
... ... @@ -365,6 +365,7 @@
365 365  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
366 366  
367 367  
366 +
368 368  === 2.3.3  Interrupt Pin ===
369 369  
370 370  This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.2A0SetInterruptMode"]] for the hardware and software set up.
... ... @@ -475,7 +475,7 @@
475 475  
476 476  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
477 477  
478 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
477 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
479 479  
480 480  [[image:1654851029373-510.png]]
481 481  
... ... @@ -486,650 +486,227 @@
486 486  
487 487  
488 488  
489 -== 2.6  Frequency Plans ==
488 +== 2.6  LED Indicator ==
490 490  
491 -(((
492 -The LDDS75 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.
493 -)))
490 +The LDDS20 has an internal LED which is to show the status of different state.
494 494  
495 495  
493 +* Blink once when device power on.
494 +* The device detects the sensor and flashes 5 times.
495 +* Solid ON for 5 seconds once device successful Join the network.
496 +* Blink once when device transmit a packet.
496 496  
497 -=== 2.6.1  EU863-870 (EU868) ===
498 498  
499 -(((
500 -(% style="color:blue" %)**Uplink:**
501 -)))
502 502  
503 -(((
504 -868.1 - SF7BW125 to SF12BW125
505 -)))
500 +== 2.7  ​Firmware Change Log ==
506 506  
507 -(((
508 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
509 -)))
510 510  
511 511  (((
512 -868.5 - SF7BW125 to SF12BW125
504 +**Firmware download link:  **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
513 513  )))
514 514  
515 515  (((
516 -867.1 - SF7BW125 to SF12BW125
517 -)))
518 -
519 -(((
520 -867.3 - SF7BW125 to SF12BW125
521 -)))
522 -
523 -(((
524 -867.5 - SF7BW125 to SF12BW125
525 -)))
526 -
527 -(((
528 -867.7 - SF7BW125 to SF12BW125
529 -)))
530 -
531 -(((
532 -867.9 - SF7BW125 to SF12BW125
533 -)))
534 -
535 -(((
536 -868.8 - FSK
537 -)))
538 -
539 -(((
540 540  
541 541  )))
542 542  
543 543  (((
544 -(% style="color:blue" %)**Downlink:**
512 +**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
545 545  )))
546 546  
547 -(((
548 -Uplink channels 1-9 (RX1)
549 -)))
550 550  
551 -(((
552 -869.525 - SF9BW125 (RX2 downlink only)
553 -)))
554 554  
517 +== 2.8  Battery Analysis ==
555 555  
556 556  
557 -=== 2.6.2  US902-928(US915) ===
558 558  
559 -(((
560 -Used in USA, Canada and South America. Default use CHE=2
561 561  
562 -(% style="color:blue" %)**Uplink:**
522 +=== 2.8.1  Battery Type ===
563 563  
564 -903.9 - SF7BW125 to SF10BW125
524 +The LDDS20 battery is a combination of a 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-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.
565 565  
566 -904.1 - SF7BW125 to SF10BW125
567 567  
568 -904.3 - SF7BW125 to SF10BW125
527 +The battery related documents as below:
569 569  
570 -904.5 - SF7BW125 to SF10BW125
571 -
572 -904.7 - SF7BW125 to SF10BW125
573 -
574 -904.9 - SF7BW125 to SF10BW125
575 -
576 -905.1 - SF7BW125 to SF10BW125
577 -
578 -905.3 - SF7BW125 to SF10BW125
579 -
580 -
581 -(% style="color:blue" %)**Downlink:**
582 -
583 -923.3 - SF7BW500 to SF12BW500
584 -
585 -923.9 - SF7BW500 to SF12BW500
586 -
587 -924.5 - SF7BW500 to SF12BW500
588 -
589 -925.1 - SF7BW500 to SF12BW500
590 -
591 -925.7 - SF7BW500 to SF12BW500
592 -
593 -926.3 - SF7BW500 to SF12BW500
594 -
595 -926.9 - SF7BW500 to SF12BW500
596 -
597 -927.5 - SF7BW500 to SF12BW500
598 -
599 -923.3 - SF12BW500(RX2 downlink only)
600 -
601 -
602 -
529 +* (((
530 +[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
603 603  )))
604 -
605 -=== 2.6.3  CN470-510 (CN470) ===
606 -
607 -(((
608 -Used in China, Default use CHE=1
532 +* (((
533 +[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
609 609  )))
610 -
611 -(((
612 -(% style="color:blue" %)**Uplink:**
535 +* (((
536 +[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
613 613  )))
614 614  
615 -(((
616 -486.3 - SF7BW125 to SF12BW125
617 -)))
539 + [[image:image-20220615102527-16.png]]
618 618  
619 -(((
620 -486.5 - SF7BW125 to SF12BW125
621 -)))
622 622  
623 -(((
624 -486.7 - SF7BW125 to SF12BW125
625 -)))
626 626  
627 -(((
628 -486.9 - SF7BW125 to SF12BW125
629 -)))
543 +== 2.8.2  Battery Note ==
630 630  
631 -(((
632 -487.1 - SF7BW125 to SF12BW125
633 -)))
545 +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 uplink data, then the battery life may be decreased.
634 634  
635 -(((
636 -487.3 - SF7BW125 to SF12BW125
637 -)))
638 638  
639 -(((
640 -487.5 - SF7BW125 to SF12BW125
641 -)))
642 642  
643 -(((
644 -487.7 - SF7BW125 to SF12BW125
645 -)))
549 +=== 2.8.3  Replace the battery ===
646 646  
647 647  (((
648 -
552 +You can change the battery in the LDDS75.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.
649 649  )))
650 650  
651 651  (((
652 -(% style="color:blue" %)**Downlink:**
653 -)))
654 -
655 -(((
656 -506.7 - SF7BW125 to SF12BW125
657 -)))
658 -
659 -(((
660 -506.9 - SF7BW125 to SF12BW125
661 -)))
662 -
663 -(((
664 -507.1 - SF7BW125 to SF12BW125
665 -)))
666 -
667 -(((
668 -507.3 - SF7BW125 to SF12BW125
669 -)))
670 -
671 -(((
672 -507.5 - SF7BW125 to SF12BW125
673 -)))
674 -
675 -(((
676 -507.7 - SF7BW125 to SF12BW125
677 -)))
678 -
679 -(((
680 -507.9 - SF7BW125 to SF12BW125
681 -)))
682 -
683 -(((
684 -508.1 - SF7BW125 to SF12BW125
685 -)))
686 -
687 -(((
688 -505.3 - SF12BW125 (RX2 downlink only)
689 -)))
690 -
691 -
692 -
693 -=== 2.6.4  AU915-928(AU915) ===
694 -
695 -(((
696 -Default use CHE=2
697 -
698 -(% style="color:blue" %)**Uplink:**
699 -
700 -916.8 - SF7BW125 to SF12BW125
701 -
702 -917.0 - SF7BW125 to SF12BW125
703 -
704 -917.2 - SF7BW125 to SF12BW125
705 -
706 -917.4 - SF7BW125 to SF12BW125
707 -
708 -917.6 - SF7BW125 to SF12BW125
709 -
710 -917.8 - SF7BW125 to SF12BW125
711 -
712 -918.0 - SF7BW125 to SF12BW125
713 -
714 -918.2 - SF7BW125 to SF12BW125
715 -
716 -
717 -(% style="color:blue" %)**Downlink:**
718 -
719 -923.3 - SF7BW500 to SF12BW500
720 -
721 -923.9 - SF7BW500 to SF12BW500
722 -
723 -924.5 - SF7BW500 to SF12BW500
724 -
725 -925.1 - SF7BW500 to SF12BW500
726 -
727 -925.7 - SF7BW500 to SF12BW500
728 -
729 -926.3 - SF7BW500 to SF12BW500
730 -
731 -926.9 - SF7BW500 to SF12BW500
732 -
733 -927.5 - SF7BW500 to SF12BW500
734 -
735 -923.3 - SF12BW500(RX2 downlink only)
736 -
737 -
738 738  
739 739  )))
740 740  
741 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
742 -
743 743  (((
744 -(% style="color:blue" %)**Default Uplink channel:**
560 +The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 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)
745 745  )))
746 746  
747 -(((
748 -923.2 - SF7BW125 to SF10BW125
749 -)))
750 750  
751 -(((
752 -923.4 - SF7BW125 to SF10BW125
753 -)))
754 754  
755 -(((
756 -
757 -)))
565 +== 2.8.4  Battery Life Analyze ==
758 758  
759 -(((
760 -(% style="color:blue" %)**Additional Uplink Channel**:
761 -)))
567 +Dragino battery powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimate battery life:
762 762  
763 -(((
764 -(OTAA mode, channel added by JoinAccept message)
765 -)))
569 +[[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
766 766  
767 -(((
768 -
769 -)))
770 770  
771 -(((
772 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
773 -)))
774 774  
775 -(((
776 -922.2 - SF7BW125 to SF10BW125
777 -)))
573 += 3.  Using the AT Commands =
778 778  
779 779  (((
780 -922.4 - SF7BW125 to SF10BW125
781 -)))
782 -
783 783  (((
784 -922.6 - SF7BW125 to SF10BW125
785 -)))
786 -
787 -(((
788 -922.8 - SF7BW125 to SF10BW125
789 -)))
790 -
791 -(((
792 -923.0 - SF7BW125 to SF10BW125
793 -)))
794 -
795 -(((
796 -922.0 - SF7BW125 to SF10BW125
797 -)))
798 -
799 -(((
800 800  
801 801  )))
802 -
803 -(((
804 -(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
805 805  )))
806 806  
807 -(((
808 -923.6 - SF7BW125 to SF10BW125
809 -)))
581 +== 3.1  Access AT Commands ==
810 810  
811 -(((
812 -923.8 - SF7BW125 to SF10BW125
813 -)))
583 +LDDS20 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS20 for using AT command, as below.
814 814  
815 -(((
816 -924.0 - SF7BW125 to SF10BW125
817 -)))
818 818  
819 -(((
820 -924.2 - SF7BW125 to SF10BW125
821 -)))
586 +[[image:image-20220610172924-4.png||height="483" width="988"]]
822 822  
823 -(((
824 -924.4 - SF7BW125 to SF10BW125
825 -)))
826 826  
827 -(((
828 -924.6 - SF7BW125 to SF10BW125
829 -)))
589 +Or if you have below board, use below connection:
830 830  
831 -(((
832 -
833 -)))
834 834  
835 -(((
836 -(% style="color:blue" %)**Downlink:**
837 -)))
592 +[[image:image-20220610172924-5.png]]
838 838  
839 -(((
840 -Uplink channels 1-8 (RX1)
841 -)))
842 842  
843 843  (((
844 -923.2 - SF10BW125 (RX2)
596 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS20. LDDS20 will output system info once power on as below:
845 845  )))
846 846  
847 847  
600 + [[image:image-20220610172924-6.png||height="601" width="860"]]
848 848  
849 -=== 2.6.6  KR920-923 (KR920) ===
602 +Below are the available commands, a more detailed AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/]].
850 850  
851 -(((
852 -(% style="color:blue" %)**Default channel:**
853 -)))
854 854  
855 -(((
856 -922.1 - SF7BW125 to SF12BW125
857 -)))
605 +AT+<CMD>?  :  Help on <CMD>
858 858  
859 -(((
860 -922.3 - SF7BW125 to SF12BW125
861 -)))
607 +AT+<CMD>  :  Run <CMD>
862 862  
863 -(((
864 -922.5 - SF7BW125 to SF12BW125
865 -)))
609 +AT+<CMD>=<value>  :  Set the value
866 866  
867 -(((
868 -
869 -)))
611 +AT+<CMD>=?  :  Get the value
870 870  
871 -(((
872 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
873 -)))
874 874  
875 -(((
876 -922.1 - SF7BW125 to SF12BW125
877 -)))
614 +**General Commands**      
878 878  
879 -(((
880 -922.3 - SF7BW125 to SF12BW125
881 -)))
616 +AT                    : Attention       
882 882  
883 -(((
884 -922.5 - SF7BW125 to SF12BW125
885 -)))
618 +AT?                            : Short Help     
886 886  
887 -(((
888 -922.7 - SF7BW125 to SF12BW125
889 -)))
620 +ATZ                            : MCU Reset    
890 890  
891 -(((
892 -922.9 - SF7BW125 to SF12BW125
893 -)))
622 +AT+TDC           : Application Data Transmission Interval 
894 894  
895 -(((
896 -923.1 - SF7BW125 to SF12BW125
897 -)))
898 898  
899 -(((
900 -923.3 - SF7BW125 to SF12BW125
901 -)))
625 +**Keys, IDs and EUIs management**
902 902  
903 -(((
904 -
905 -)))
627 +AT+APPEUI              : Application EUI      
906 906  
907 -(((
908 -(% style="color:blue" %)**Downlink:**
909 -)))
629 +AT+APPKEY              : Application Key     
910 910  
911 -(((
912 -Uplink channels 1-7(RX1)
913 -)))
631 +AT+APPSKEY            : Application Session Key
914 914  
915 -(((
916 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
917 -)))
633 +AT+DADDR              : Device Address     
918 918  
635 +AT+DEUI                   : Device EUI     
919 919  
637 +AT+NWKID               : Network ID (You can enter this command change only after successful network connection) 
920 920  
921 -=== 2.6.7  IN865-867 (IN865) ===
639 +AT+NWKSKEY          : Network Session Key Joining and sending date on LoRa network  
922 922  
923 -(((
924 -(% style="color:blue" %)**Uplink:**
925 -)))
641 +AT+CFM          : Confirm Mode       
926 926  
927 -(((
928 -865.0625 - SF7BW125 to SF12BW125
929 -)))
643 +AT+CFS                     : Confirm Status       
930 930  
931 -(((
932 -865.4025 - SF7BW125 to SF12BW125
933 -)))
645 +AT+JOIN          : Join LoRa? Network       
934 934  
935 -(((
936 -865.9850 - SF7BW125 to SF12BW125
937 -)))
647 +AT+NJM          : LoRa? Network Join Mode    
938 938  
939 -(((
940 -
941 -)))
649 +AT+NJS                     : LoRa? Network Join Status    
942 942  
943 -(((
944 -(% style="color:blue" %)**Downlink:**
945 -)))
651 +AT+RECV                  : Print Last Received Data in Raw Format
946 946  
947 -(((
948 -Uplink channels 1-3 (RX1)
949 -)))
653 +AT+RECVB                : Print Last Received Data in Binary Format      
950 950  
951 -(((
952 -866.550 - SF10BW125 (RX2)
953 -)))
655 +AT+SEND                  : Send Text Data      
954 954  
657 +AT+SENB                  : Send Hexadecimal Data
955 955  
956 956  
957 -== 2.7  LED Indicator ==
660 +**LoRa Network Management**
958 958  
959 -The LDDS75 has an internal LED which is to show the status of different state.
662 +AT+ADR          : Adaptive Rate
960 960  
664 +AT+CLASS                : LoRa Class(Currently only support class A
961 961  
962 -* Blink once when device power on.
963 -* The device detects the sensor and flashes 5 times.
964 -* Solid ON for 5 seconds once device successful Join the network.
965 -* Blink once when device transmit a packet.
666 +AT+DCS           : Duty Cycle Setting 
966 966  
967 -== 2.8  ​Firmware Change Log ==
668 +AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
968 968  
670 +AT+FCD           : Frame Counter Downlink       
969 969  
970 -(((
971 -**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
972 -)))
672 +AT+FCU           : Frame Counter Uplink   
973 973  
974 -(((
975 -
976 -)))
674 +AT+JN1DL                : Join Accept Delay1
977 977  
978 -(((
979 -**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
980 -)))
676 +AT+JN2DL                : Join Accept Delay2
981 981  
678 +AT+PNM                   : Public Network Mode   
982 982  
680 +AT+RX1DL                : Receive Delay1      
983 983  
984 -== 2.9  Mechanical ==
682 +AT+RX2DL                : Receive Delay2      
985 985  
684 +AT+RX2DR               : Rx2 Window Data Rate 
986 986  
987 -[[image:image-20220610172003-1.png]]
686 +AT+RX2FQ               : Rx2 Window Frequency
988 988  
688 +AT+TXP           : Transmit Power
989 989  
990 -[[image:image-20220610172003-2.png]]
991 991  
691 +**Information** 
992 992  
693 +AT+RSSI           : RSSI of the Last Received Packet   
993 993  
994 -== 2.10  Battery Analysis ==
695 +AT+SNR           : SNR of the Last Received Packet   
995 995  
996 -=== 2.10.1  Battery Type ===
697 +AT+VER           : Image Version and Frequency Band       
997 997  
998 -The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-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.
699 +AT+FDR           : Factory Data Reset
999 999  
701 +AT+PORT                  : Application Port    
1000 1000  
1001 -The battery related documents as below:
703 +AT+CHS           : Get or Set Frequency (Unit: Hz) for Single Channel Mode
1002 1002  
1003 -* (((
1004 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1005 -)))
1006 -* (((
1007 -[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
1008 -)))
1009 -* (((
1010 -[[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]]
1011 -)))
705 + AT+CHE                   : Get or Set eight channels mode, Only for US915, AU915, CN470
1012 1012  
1013 - [[image:image-20220610172400-3.png]]
1014 1014  
1015 1015  
1016 -
1017 -=== 2.10.2  Replace the battery ===
1018 -
1019 -(((
1020 -You can change the battery in the LDDS75.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.
1021 -)))
1022 -
1023 -(((
1024 -
1025 -)))
1026 -
1027 -(((
1028 -The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 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)
1029 -)))
1030 -
1031 -
1032 -
1033 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
1034 -
1035 -(((
1036 -(((
1037 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
1038 -)))
1039 -)))
1040 -
1041 -* (((
1042 -(((
1043 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
1044 -)))
1045 -)))
1046 -* (((
1047 -(((
1048 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1049 -)))
1050 -)))
1051 -
1052 -(((
1053 -(((
1054 -
1055 -)))
1056 -
1057 -(((
1058 -There are two kinds of commands to configure LDDS75, they are:
1059 -)))
1060 -)))
1061 -
1062 -* (((
1063 -(((
1064 -(% style="color:#4f81bd" %)** General Commands**.
1065 -)))
1066 -)))
1067 -
1068 -(((
1069 -(((
1070 -These commands are to configure:
1071 -)))
1072 -)))
1073 -
1074 -* (((
1075 -(((
1076 -General system settings like: uplink interval.
1077 -)))
1078 -)))
1079 -* (((
1080 -(((
1081 -LoRaWAN protocol & radio related command.
1082 -)))
1083 -)))
1084 -
1085 -(((
1086 -(((
1087 -They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
1088 -)))
1089 -)))
1090 -
1091 -(((
1092 -(((
1093 -
1094 -)))
1095 -)))
1096 -
1097 -* (((
1098 -(((
1099 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
1100 -)))
1101 -)))
1102 -
1103 -(((
1104 -(((
1105 -These commands only valid for LDDS75, as below:
1106 -)))
1107 -)))
1108 -
1109 -
1110 -
1111 -== 3.1  Access AT Commands ==
1112 -
1113 -LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
1114 -
1115 -[[image:image-20220610172924-4.png||height="483" width="988"]]
1116 -
1117 -
1118 -Or if you have below board, use below connection:
1119 -
1120 -
1121 -[[image:image-20220610172924-5.png]]
1122 -
1123 -
1124 -(((
1125 -In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below:
1126 -)))
1127 -
1128 -
1129 - [[image:image-20220610172924-6.png||height="601" width="860"]]
1130 -
1131 -
1132 -
1133 1133  == 3.2  Set Transmit Interval Time ==
1134 1134  
1135 1135  Feature: Change LoRaWAN End Node Transmit Interval.
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