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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 173.4
edited by Xiaoling
on 2022/06/15 10:13
Change comment: There is no comment for this version
To version 174.10
edited by Xiaoling
on 2022/06/15 10:44
Change comment: There is no comment for this version

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... ... @@ -362,6 +362,8 @@
362 362  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
363 363  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
364 364  
365 +
366 +
365 365  === 2.3.3  Interrupt Pin ===
366 366  
367 367  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.
... ... @@ -483,650 +483,227 @@
483 483  
484 484  
485 485  
486 -== 2.6  Frequency Plans ==
488 +== 2.6  LED Indicator ==
487 487  
488 -(((
489 -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.
490 -)))
490 +The LDDS20 has an internal LED which is to show the status of different state.
491 491  
492 492  
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.
493 493  
494 -=== 2.6.1  EU863-870 (EU868) ===
495 495  
496 -(((
497 -(% style="color:blue" %)**Uplink:**
498 -)))
499 499  
500 -(((
501 -868.1 - SF7BW125 to SF12BW125
502 -)))
500 +== 2.7  ​Firmware Change Log ==
503 503  
504 -(((
505 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
506 -)))
507 507  
508 508  (((
509 -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/]]
510 510  )))
511 511  
512 512  (((
513 -867.1 - SF7BW125 to SF12BW125
514 -)))
515 -
516 -(((
517 -867.3 - SF7BW125 to SF12BW125
518 -)))
519 -
520 -(((
521 -867.5 - SF7BW125 to SF12BW125
522 -)))
523 -
524 -(((
525 -867.7 - SF7BW125 to SF12BW125
526 -)))
527 -
528 -(((
529 -867.9 - SF7BW125 to SF12BW125
530 -)))
531 -
532 -(((
533 -868.8 - FSK
534 -)))
535 -
536 -(((
537 537  
538 538  )))
539 539  
540 540  (((
541 -(% style="color:blue" %)**Downlink:**
512 +**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
542 542  )))
543 543  
544 -(((
545 -Uplink channels 1-9 (RX1)
546 -)))
547 547  
548 -(((
549 -869.525 - SF9BW125 (RX2 downlink only)
550 -)))
551 551  
517 +== 2.8  Battery Analysis ==
552 552  
553 553  
554 -=== 2.6.2  US902-928(US915) ===
555 555  
556 -(((
557 -Used in USA, Canada and South America. Default use CHE=2
558 558  
559 -(% style="color:blue" %)**Uplink:**
522 +=== 2.8.1  Battery Type ===
560 560  
561 -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.
562 562  
563 -904.1 - SF7BW125 to SF10BW125
564 564  
565 -904.3 - SF7BW125 to SF10BW125
527 +The battery related documents as below:
566 566  
567 -904.5 - SF7BW125 to SF10BW125
568 -
569 -904.7 - SF7BW125 to SF10BW125
570 -
571 -904.9 - SF7BW125 to SF10BW125
572 -
573 -905.1 - SF7BW125 to SF10BW125
574 -
575 -905.3 - SF7BW125 to SF10BW125
576 -
577 -
578 -(% style="color:blue" %)**Downlink:**
579 -
580 -923.3 - SF7BW500 to SF12BW500
581 -
582 -923.9 - SF7BW500 to SF12BW500
583 -
584 -924.5 - SF7BW500 to SF12BW500
585 -
586 -925.1 - SF7BW500 to SF12BW500
587 -
588 -925.7 - SF7BW500 to SF12BW500
589 -
590 -926.3 - SF7BW500 to SF12BW500
591 -
592 -926.9 - SF7BW500 to SF12BW500
593 -
594 -927.5 - SF7BW500 to SF12BW500
595 -
596 -923.3 - SF12BW500(RX2 downlink only)
597 -
598 -
599 -
529 +* (((
530 +[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
600 600  )))
601 -
602 -=== 2.6.3  CN470-510 (CN470) ===
603 -
604 -(((
605 -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/]],
606 606  )))
607 -
608 -(((
609 -(% style="color:blue" %)**Uplink:**
535 +* (((
536 +[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
610 610  )))
611 611  
612 -(((
613 -486.3 - SF7BW125 to SF12BW125
614 -)))
539 + [[image:image-20220615102527-16.png]]
615 615  
616 -(((
617 -486.5 - SF7BW125 to SF12BW125
618 -)))
619 619  
620 -(((
621 -486.7 - SF7BW125 to SF12BW125
622 -)))
623 623  
624 -(((
625 -486.9 - SF7BW125 to SF12BW125
626 -)))
543 +== 2.8.2  Battery Note ==
627 627  
628 -(((
629 -487.1 - SF7BW125 to SF12BW125
630 -)))
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.
631 631  
632 -(((
633 -487.3 - SF7BW125 to SF12BW125
634 -)))
635 635  
636 -(((
637 -487.5 - SF7BW125 to SF12BW125
638 -)))
639 639  
640 -(((
641 -487.7 - SF7BW125 to SF12BW125
642 -)))
549 +=== 2.8.3  Replace the battery ===
643 643  
644 644  (((
645 -
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.
646 646  )))
647 647  
648 648  (((
649 -(% style="color:blue" %)**Downlink:**
650 -)))
651 -
652 -(((
653 -506.7 - SF7BW125 to SF12BW125
654 -)))
655 -
656 -(((
657 -506.9 - SF7BW125 to SF12BW125
658 -)))
659 -
660 -(((
661 -507.1 - SF7BW125 to SF12BW125
662 -)))
663 -
664 -(((
665 -507.3 - SF7BW125 to SF12BW125
666 -)))
667 -
668 -(((
669 -507.5 - SF7BW125 to SF12BW125
670 -)))
671 -
672 -(((
673 -507.7 - SF7BW125 to SF12BW125
674 -)))
675 -
676 -(((
677 -507.9 - SF7BW125 to SF12BW125
678 -)))
679 -
680 -(((
681 -508.1 - SF7BW125 to SF12BW125
682 -)))
683 -
684 -(((
685 -505.3 - SF12BW125 (RX2 downlink only)
686 -)))
687 -
688 -
689 -
690 -=== 2.6.4  AU915-928(AU915) ===
691 -
692 -(((
693 -Default use CHE=2
694 -
695 -(% style="color:blue" %)**Uplink:**
696 -
697 -916.8 - SF7BW125 to SF12BW125
698 -
699 -917.0 - SF7BW125 to SF12BW125
700 -
701 -917.2 - SF7BW125 to SF12BW125
702 -
703 -917.4 - SF7BW125 to SF12BW125
704 -
705 -917.6 - SF7BW125 to SF12BW125
706 -
707 -917.8 - SF7BW125 to SF12BW125
708 -
709 -918.0 - SF7BW125 to SF12BW125
710 -
711 -918.2 - SF7BW125 to SF12BW125
712 -
713 -
714 -(% style="color:blue" %)**Downlink:**
715 -
716 -923.3 - SF7BW500 to SF12BW500
717 -
718 -923.9 - SF7BW500 to SF12BW500
719 -
720 -924.5 - SF7BW500 to SF12BW500
721 -
722 -925.1 - SF7BW500 to SF12BW500
723 -
724 -925.7 - SF7BW500 to SF12BW500
725 -
726 -926.3 - SF7BW500 to SF12BW500
727 -
728 -926.9 - SF7BW500 to SF12BW500
729 -
730 -927.5 - SF7BW500 to SF12BW500
731 -
732 -923.3 - SF12BW500(RX2 downlink only)
733 -
734 -
735 735  
736 736  )))
737 737  
738 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
739 -
740 740  (((
741 -(% 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)
742 742  )))
743 743  
744 -(((
745 -923.2 - SF7BW125 to SF10BW125
746 -)))
747 747  
748 -(((
749 -923.4 - SF7BW125 to SF10BW125
750 -)))
751 751  
752 -(((
753 -
754 -)))
565 +== 2.8.4  Battery Life Analyze ==
755 755  
756 -(((
757 -(% style="color:blue" %)**Additional Uplink Channel**:
758 -)))
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:
759 759  
760 -(((
761 -(OTAA mode, channel added by JoinAccept message)
762 -)))
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]]
763 763  
764 -(((
765 -
766 -)))
767 767  
768 -(((
769 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
770 -)))
771 771  
772 -(((
773 -922.2 - SF7BW125 to SF10BW125
774 -)))
573 += 3.  Using the AT Commands =
775 775  
776 776  (((
777 -922.4 - SF7BW125 to SF10BW125
778 -)))
779 -
780 780  (((
781 -922.6 - SF7BW125 to SF10BW125
782 -)))
783 -
784 -(((
785 -922.8 - SF7BW125 to SF10BW125
786 -)))
787 -
788 -(((
789 -923.0 - SF7BW125 to SF10BW125
790 -)))
791 -
792 -(((
793 -922.0 - SF7BW125 to SF10BW125
794 -)))
795 -
796 -(((
797 797  
798 798  )))
799 -
800 -(((
801 -(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
802 802  )))
803 803  
804 -(((
805 -923.6 - SF7BW125 to SF10BW125
806 -)))
581 +== 3.1  Access AT Commands ==
807 807  
808 -(((
809 -923.8 - SF7BW125 to SF10BW125
810 -)))
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.
811 811  
812 -(((
813 -924.0 - SF7BW125 to SF10BW125
814 -)))
815 815  
816 -(((
817 -924.2 - SF7BW125 to SF10BW125
818 -)))
586 +[[image:image-20220610172924-4.png||height="483" width="988"]]
819 819  
820 -(((
821 -924.4 - SF7BW125 to SF10BW125
822 -)))
823 823  
824 -(((
825 -924.6 - SF7BW125 to SF10BW125
826 -)))
589 +Or if you have below board, use below connection:
827 827  
828 -(((
829 -
830 -)))
831 831  
832 -(((
833 -(% style="color:blue" %)**Downlink:**
834 -)))
592 +[[image:image-20220610172924-5.png]]
835 835  
836 -(((
837 -Uplink channels 1-8 (RX1)
838 -)))
839 839  
840 840  (((
841 -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:
842 842  )))
843 843  
844 844  
600 + [[image:image-20220610172924-6.png||height="601" width="860"]]
845 845  
846 -=== 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/]].
847 847  
848 -(((
849 -(% style="color:blue" %)**Default channel:**
850 -)))
851 851  
852 -(((
853 -922.1 - SF7BW125 to SF12BW125
854 -)))
605 +AT+<CMD>?  :  Help on <CMD>
855 855  
856 -(((
857 -922.3 - SF7BW125 to SF12BW125
858 -)))
607 +AT+<CMD>  :  Run <CMD>
859 859  
860 -(((
861 -922.5 - SF7BW125 to SF12BW125
862 -)))
609 +AT+<CMD>=<value>  :  Set the value
863 863  
864 -(((
865 -
866 -)))
611 +AT+<CMD>=?  :  Get the value
867 867  
868 -(((
869 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
870 -)))
871 871  
872 -(((
873 -922.1 - SF7BW125 to SF12BW125
874 -)))
614 +**General Commands** : 
875 875  
876 -(((
877 -922.3 - SF7BW125 to SF12BW125
878 -)))
616 +AT                    : Attention       
879 879  
880 -(((
881 -922.5 - SF7BW125 to SF12BW125
882 -)))
618 +AT?                            : Short Help     
883 883  
884 -(((
885 -922.7 - SF7BW125 to SF12BW125
886 -)))
620 +ATZ                            : MCU Reset    
887 887  
888 -(((
889 -922.9 - SF7BW125 to SF12BW125
890 -)))
622 +AT+TDC           : Application Data Transmission Interval 
891 891  
892 -(((
893 -923.1 - SF7BW125 to SF12BW125
894 -)))
895 895  
896 -(((
897 -923.3 - SF7BW125 to SF12BW125
898 -)))
625 +**Keys, IDs and EUIs management:**
899 899  
900 -(((
901 -
902 -)))
627 +AT+APPEUI              : Application EUI      
903 903  
904 -(((
905 -(% style="color:blue" %)**Downlink:**
906 -)))
629 +AT+APPKEY              : Application Key     
907 907  
908 -(((
909 -Uplink channels 1-7(RX1)
910 -)))
631 +AT+APPSKEY            : Application Session Key
911 911  
912 -(((
913 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
914 -)))
633 +AT+DADDR              : Device Address     
915 915  
635 +AT+DEUI                   : Device EUI     
916 916  
637 +AT+NWKID               : Network ID (You can enter this command change only after successful network connection) 
917 917  
918 -=== 2.6.7  IN865-867 (IN865) ===
639 +AT+NWKSKEY          : Network Session Key Joining and sending date on LoRa network  
919 919  
920 -(((
921 -(% style="color:blue" %)**Uplink:**
922 -)))
641 +AT+CFM          : Confirm Mode       
923 923  
924 -(((
925 -865.0625 - SF7BW125 to SF12BW125
926 -)))
643 +AT+CFS                     : Confirm Status       
927 927  
928 -(((
929 -865.4025 - SF7BW125 to SF12BW125
930 -)))
645 +AT+JOIN          : Join LoRa? Network       
931 931  
932 -(((
933 -865.9850 - SF7BW125 to SF12BW125
934 -)))
647 +AT+NJM          : LoRa? Network Join Mode    
935 935  
936 -(((
937 -
938 -)))
649 +AT+NJS                     : LoRa? Network Join Status    
939 939  
940 -(((
941 -(% style="color:blue" %)**Downlink:**
942 -)))
651 +AT+RECV                  : Print Last Received Data in Raw Format
943 943  
944 -(((
945 -Uplink channels 1-3 (RX1)
946 -)))
653 +AT+RECVB                : Print Last Received Data in Binary Format      
947 947  
948 -(((
949 -866.550 - SF10BW125 (RX2)
950 -)))
655 +AT+SEND                  : Send Text Data      
951 951  
657 +AT+SENB                  : Send Hexadecimal Data
952 952  
953 953  
954 -== 2.7  LED Indicator ==
660 +**LoRa Network Management :**
955 955  
956 -The LDDS75 has an internal LED which is to show the status of different state.
662 +AT+ADR          : Adaptive Rate
957 957  
664 +AT+CLASS                : LoRa Class(Currently only support class A
958 958  
959 -* Blink once when device power on.
960 -* The device detects the sensor and flashes 5 times.
961 -* Solid ON for 5 seconds once device successful Join the network.
962 -* Blink once when device transmit a packet.
666 +AT+DCS           : Duty Cycle Setting 
963 963  
964 -== 2.8  ​Firmware Change Log ==
668 +AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
965 965  
670 +AT+FCD           : Frame Counter Downlink       
966 966  
967 -(((
968 -**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/]]
969 -)))
672 +AT+FCU           : Frame Counter Uplink   
970 970  
971 -(((
972 -
973 -)))
674 +AT+JN1DL                : Join Accept Delay1
974 974  
975 -(((
976 -**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
977 -)))
676 +AT+JN2DL                : Join Accept Delay2
978 978  
678 +AT+PNM                   : Public Network Mode   
979 979  
680 +AT+RX1DL                : Receive Delay1      
980 980  
981 -== 2.9  Mechanical ==
682 +AT+RX2DL                : Receive Delay2      
982 982  
684 +AT+RX2DR               : Rx2 Window Data Rate 
983 983  
984 -[[image:image-20220610172003-1.png]]
686 +AT+RX2FQ               : Rx2 Window Frequency
985 985  
688 +AT+TXP           : Transmit Power
986 986  
987 -[[image:image-20220610172003-2.png]]
988 988  
691 +**Information :**
989 989  
693 +AT+RSSI           : RSSI of the Last Received Packet   
990 990  
991 -== 2.10  Battery Analysis ==
695 +AT+SNR           : SNR of the Last Received Packet   
992 992  
993 -=== 2.10.1  Battery Type ===
697 +AT+VER           : Image Version and Frequency Band       
994 994  
995 -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
996 996  
701 +AT+PORT                  : Application Port    
997 997  
998 -The battery related documents as below:
703 +AT+CHS           : Get or Set Frequency (Unit: Hz) for Single Channel Mode
999 999  
1000 -* (((
1001 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1002 -)))
1003 -* (((
1004 -[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
1005 -)))
1006 -* (((
1007 -[[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]]
1008 -)))
705 + AT+CHE                   : Get or Set eight channels mode, Only for US915, AU915, CN470
1009 1009  
1010 - [[image:image-20220610172400-3.png]]
1011 1011  
1012 1012  
1013 -
1014 -=== 2.10.2  Replace the battery ===
1015 -
1016 -(((
1017 -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.
1018 -)))
1019 -
1020 -(((
1021 -
1022 -)))
1023 -
1024 -(((
1025 -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)
1026 -)))
1027 -
1028 -
1029 -
1030 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
1031 -
1032 -(((
1033 -(((
1034 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
1035 -)))
1036 -)))
1037 -
1038 -* (((
1039 -(((
1040 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
1041 -)))
1042 -)))
1043 -* (((
1044 -(((
1045 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1046 -)))
1047 -)))
1048 -
1049 -(((
1050 -(((
1051 -
1052 -)))
1053 -
1054 -(((
1055 -There are two kinds of commands to configure LDDS75, they are:
1056 -)))
1057 -)))
1058 -
1059 -* (((
1060 -(((
1061 -(% style="color:#4f81bd" %)** General Commands**.
1062 -)))
1063 -)))
1064 -
1065 -(((
1066 -(((
1067 -These commands are to configure:
1068 -)))
1069 -)))
1070 -
1071 -* (((
1072 -(((
1073 -General system settings like: uplink interval.
1074 -)))
1075 -)))
1076 -* (((
1077 -(((
1078 -LoRaWAN protocol & radio related command.
1079 -)))
1080 -)))
1081 -
1082 -(((
1083 -(((
1084 -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]]
1085 -)))
1086 -)))
1087 -
1088 -(((
1089 -(((
1090 -
1091 -)))
1092 -)))
1093 -
1094 -* (((
1095 -(((
1096 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
1097 -)))
1098 -)))
1099 -
1100 -(((
1101 -(((
1102 -These commands only valid for LDDS75, as below:
1103 -)))
1104 -)))
1105 -
1106 -
1107 -
1108 -== 3.1  Access AT Commands ==
1109 -
1110 -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.
1111 -
1112 -[[image:image-20220610172924-4.png||height="483" width="988"]]
1113 -
1114 -
1115 -Or if you have below board, use below connection:
1116 -
1117 -
1118 -[[image:image-20220610172924-5.png]]
1119 -
1120 -
1121 -(((
1122 -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:
1123 -)))
1124 -
1125 -
1126 - [[image:image-20220610172924-6.png||height="601" width="860"]]
1127 -
1128 -
1129 -
1130 1130  == 3.2  Set Transmit Interval Time ==
1131 1131  
1132 1132  Feature: Change LoRaWAN End Node Transmit Interval.
image-20220615102527-16.png
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