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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.19
edited by Xiaoling
on 2022/06/15 11:08
Change comment: There is no comment for this version
To version 173.4
edited by Xiaoling
on 2022/06/15 10:13
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -100,9 +100,6 @@
100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 -
104 -
105 -
106 106  == 1.3  Suitable Container & Liquid ==
107 107  
108 108  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -112,9 +112,6 @@
112 112  ** Pure non metal material: <10 mm
113 113  * Pure liquid without irregular deposition.
114 114  
115 -
116 -
117 -
118 118  == 1.4  Mechanical ==
119 119  
120 120  [[image:image-20220615090910-1.png]]
... ... @@ -411,7 +411,7 @@
411 411  While using TTN network, you can add the payload format to decode the payload.
412 412  
413 413  
414 -[[image:1655261164557-670.png]]
408 +[[image:1654850829385-439.png]]
415 415  
416 416  The payload decoder function for TTN V3 is here:
417 417  
... ... @@ -489,227 +489,682 @@
489 489  
490 490  
491 491  
492 -== 2.6  LED Indicator ==
486 +== 2.6  Frequency Plans ==
493 493  
494 -The LDDS20 has an internal LED which is to show the status of different state.
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 +)))
495 495  
496 496  
497 -* Blink once when device power on.
498 -* The device detects the sensor and flashes 5 times.
499 -* Solid ON for 5 seconds once device successful Join the network.
500 -* Blink once when device transmit a packet.
501 501  
502 -== 2.7  ​Firmware Change Log ==
494 +=== 2.6.1  EU863-870 (EU868) ===
503 503  
496 +(((
497 +(% style="color:blue" %)**Uplink:**
498 +)))
504 504  
505 505  (((
506 -**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/]]
501 +868.1 - SF7BW125 to SF12BW125
507 507  )))
508 508  
509 509  (((
505 +868.3 - SF7BW125 to SF12BW125 and SF7BW250
506 +)))
507 +
508 +(((
509 +868.5 - SF7BW125 to SF12BW125
510 +)))
511 +
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 +(((
510 510  
511 511  )))
512 512  
513 513  (((
514 -**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
541 +(% style="color:blue" %)**Downlink:**
515 515  )))
516 516  
544 +(((
545 +Uplink channels 1-9 (RX1)
546 +)))
517 517  
548 +(((
549 +869.525 - SF9BW125 (RX2 downlink only)
550 +)))
518 518  
519 -== 2.8  Battery Analysis ==
520 520  
521 521  
554 +=== 2.6.2  US902-928(US915) ===
522 522  
556 +(((
557 +Used in USA, Canada and South America. Default use CHE=2
523 523  
524 -=== 2.8.1  Battery Type ===
559 +(% style="color:blue" %)**Uplink:**
525 525  
526 -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.
561 +903.9 - SF7BW125 to SF10BW125
527 527  
563 +904.1 - SF7BW125 to SF10BW125
528 528  
529 -The battery related documents as below:
565 +904.3 - SF7BW125 to SF10BW125
530 530  
531 -* (((
532 -[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
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 +
533 533  )))
534 -* (((
535 -[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
601 +
602 +=== 2.6.3  CN470-510 (CN470) ===
603 +
604 +(((
605 +Used in China, Default use CHE=1
536 536  )))
537 -* (((
538 -[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
607 +
608 +(((
609 +(% style="color:blue" %)**Uplink:**
539 539  )))
540 540  
541 - [[image:image-20220615102527-16.png]]
612 +(((
613 +486.3 - SF7BW125 to SF12BW125
614 +)))
542 542  
616 +(((
617 +486.5 - SF7BW125 to SF12BW125
618 +)))
543 543  
620 +(((
621 +486.7 - SF7BW125 to SF12BW125
622 +)))
544 544  
545 -== 2.8.2  Battery Note ==
624 +(((
625 +486.9 - SF7BW125 to SF12BW125
626 +)))
546 546  
547 -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.
628 +(((
629 +487.1 - SF7BW125 to SF12BW125
630 +)))
548 548  
632 +(((
633 +487.3 - SF7BW125 to SF12BW125
634 +)))
549 549  
636 +(((
637 +487.5 - SF7BW125 to SF12BW125
638 +)))
550 550  
551 -=== 2.8.3  Replace the battery ===
640 +(((
641 +487.7 - SF7BW125 to SF12BW125
642 +)))
552 552  
553 553  (((
554 -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.
645 +
555 555  )))
556 556  
557 557  (((
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 +
558 558  
559 559  )))
560 560  
738 +=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
739 +
561 561  (((
562 -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)
741 +(% style="color:blue" %)**Default Uplink channel:**
563 563  )))
564 564  
744 +(((
745 +923.2 - SF7BW125 to SF10BW125
746 +)))
565 565  
748 +(((
749 +923.4 - SF7BW125 to SF10BW125
750 +)))
566 566  
567 -== 2.8.4  Battery Life Analyze ==
752 +(((
753 +
754 +)))
568 568  
569 -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:
756 +(((
757 +(% style="color:blue" %)**Additional Uplink Channel**:
758 +)))
570 570  
571 -[[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]]
760 +(((
761 +(OTAA mode, channel added by JoinAccept message)
762 +)))
572 572  
764 +(((
765 +
766 +)))
573 573  
768 +(((
769 +(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
770 +)))
574 574  
575 -= 3.  Using the AT Commands =
772 +(((
773 +922.2 - SF7BW125 to SF10BW125
774 +)))
576 576  
577 577  (((
777 +922.4 - SF7BW125 to SF10BW125
778 +)))
779 +
578 578  (((
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 +(((
579 579  
580 580  )))
799 +
800 +(((
801 +(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
581 581  )))
582 582  
583 -== 3.1  Access AT Commands ==
804 +(((
805 +923.6 - SF7BW125 to SF10BW125
806 +)))
584 584  
585 -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.
808 +(((
809 +923.8 - SF7BW125 to SF10BW125
810 +)))
586 586  
812 +(((
813 +924.0 - SF7BW125 to SF10BW125
814 +)))
587 587  
588 -[[image:image-20220610172924-4.png||height="483" width="988"]]
816 +(((
817 +924.2 - SF7BW125 to SF10BW125
818 +)))
589 589  
820 +(((
821 +924.4 - SF7BW125 to SF10BW125
822 +)))
590 590  
591 -Or if you have below board, use below connection:
824 +(((
825 +924.6 - SF7BW125 to SF10BW125
826 +)))
592 592  
828 +(((
829 +
830 +)))
593 593  
594 -[[image:image-20220610172924-5.png]]
832 +(((
833 +(% style="color:blue" %)**Downlink:**
834 +)))
595 595  
836 +(((
837 +Uplink channels 1-8 (RX1)
838 +)))
596 596  
597 597  (((
598 -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:
841 +923.2 - SF10BW125 (RX2)
599 599  )))
600 600  
601 601  
602 - [[image:image-20220610172924-6.png||height="601" width="860"]]
603 603  
604 -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/]].
846 +=== 2.6.6  KR920-923 (KR920) ===
605 605  
848 +(((
849 +(% style="color:blue" %)**Default channel:**
850 +)))
606 606  
607 -AT+<CMD>?  :  Help on <CMD>
852 +(((
853 +922.1 - SF7BW125 to SF12BW125
854 +)))
608 608  
609 -AT+<CMD>  :  Run <CMD>
856 +(((
857 +922.3 - SF7BW125 to SF12BW125
858 +)))
610 610  
611 -AT+<CMD>=<value>  :  Set the value
860 +(((
861 +922.5 - SF7BW125 to SF12BW125
862 +)))
612 612  
613 -AT+<CMD>=?  :  Get the value
864 +(((
865 +
866 +)))
614 614  
868 +(((
869 +(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
870 +)))
615 615  
616 -(% style="color:#037691" %)** General Commands :**     
872 +(((
873 +922.1 - SF7BW125 to SF12BW125
874 +)))
617 617  
618 -AT  :  Attention       
876 +(((
877 +922.3 - SF7BW125 to SF12BW125
878 +)))
619 619  
620 -AT?  :  Short Help     
880 +(((
881 +922.5 - SF7BW125 to SF12BW125
882 +)))
621 621  
622 -ATZ :  MCU Reset    
884 +(((
885 +922.7 - SF7BW125 to SF12BW125
886 +)))
623 623  
624 -AT+TDC :  Application Data Transmission Interval 
888 +(((
889 +922.9 - SF7BW125 to SF12BW125
890 +)))
625 625  
892 +(((
893 +923.1 - SF7BW125 to SF12BW125
894 +)))
626 626  
627 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
896 +(((
897 +923.3 - SF7BW125 to SF12BW125
898 +)))
628 628  
629 -AT+APPEUI  :  Application EUI      
900 +(((
901 +
902 +)))
630 630  
631 -AT+APPKEY  :  Application Key     
904 +(((
905 +(% style="color:blue" %)**Downlink:**
906 +)))
632 632  
633 -AT+APPSKEY  :  Application Session Key
908 +(((
909 +Uplink channels 1-7(RX1)
910 +)))
634 634  
635 -AT+DADDR :  Device Address     
912 +(((
913 +921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
914 +)))
636 636  
637 -AT+DEUI :  Device EUI     
638 638  
639 -AT+NWKID  :  Network ID (You can enter this command change only after successful network connection) 
640 640  
641 -AT+NWKSKEY  : Network Session Key Joining and sending date on LoRa network  
918 +=== 2.6.7  IN865-867 (IN865) ===
642 642  
643 -AT+CFM :  Confirm Mode       
920 +(((
921 +(% style="color:blue" %)**Uplink:**
922 +)))
644 644  
645 -AT+CFS :  Confirm Status       
924 +(((
925 +865.0625 - SF7BW125 to SF12BW125
926 +)))
646 646  
647 -AT+JOIN  :  Join LoRa? Network       
928 +(((
929 +865.4025 - SF7BW125 to SF12BW125
930 +)))
648 648  
649 -AT+NJM  :  LoRa? Network Join Mode    
932 +(((
933 +865.9850 - SF7BW125 to SF12BW125
934 +)))
650 650  
651 -AT+NJS  :  LoRa? Network Join Status    
936 +(((
937 +
938 +)))
652 652  
653 -AT+RECV  :  Print Last Received Data in Raw Format
940 +(((
941 +(% style="color:blue" %)**Downlink:**
942 +)))
654 654  
655 -AT+RECVB :  Print Last Received Data in Binary Format      
944 +(((
945 +Uplink channels 1-3 (RX1)
946 +)))
656 656  
657 -AT+SEND  :  Send Text Data      
948 +(((
949 +866.550 - SF10BW125 (RX2)
950 +)))
658 658  
659 -AT+SENB  :  Send Hexadecimal Data
660 660  
661 661  
662 -(% style="color:#037691" %)** LoRa Network Management :**
954 +== 2.7  LED Indicator ==
663 663  
664 -AT+ADR  :  Adaptive Rate
956 +The LDDS75 has an internal LED which is to show the status of different state.
665 665  
666 -AT+CLASS  :  LoRa Class(Currently only support class A
667 667  
668 -AT+DCS  :  Duty Cycle Setting 
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.
669 669  
670 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
964 +== 2.8  ​Firmware Change Log ==
671 671  
672 -AT+FCD  :  Frame Counter Downlink       
673 673  
674 -AT+FCU  :  Frame Counter Uplink   
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 +)))
675 675  
676 -AT+JN1DL  :  Join Accept Delay1
971 +(((
972 +
973 +)))
677 677  
678 -AT+JN2DL  :  Join Accept Delay2
975 +(((
976 +**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
977 +)))
679 679  
680 -AT+PNM  :  Public Network Mode   
681 681  
682 -AT+RX1DL  :  Receive Delay1      
683 683  
684 -AT+RX2DL  :  Receive Delay2      
981 +== 2.9  Mechanical ==
685 685  
686 -AT+RX2DR  :  Rx2 Window Data Rate 
687 687  
688 -AT+RX2FQ  :  Rx2 Window Frequency
984 +[[image:image-20220610172003-1.png]]
689 689  
690 -AT+TXP  :  Transmit Power
691 691  
987 +[[image:image-20220610172003-2.png]]
692 692  
693 -(% style="color:#037691" %)** Information :**
694 694  
695 -AT+RSSI  :  RSSI of the Last Received Packet   
696 696  
697 -AT+SNR  :  SNR of the Last Received Packet   
991 +== 2.10  Battery Analysis ==
698 698  
699 -AT+VER  :  Image Version and Frequency Band       
993 +=== 2.10.1  Battery Type ===
700 700  
701 -AT+FDR  :  Factory Data Reset
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.
702 702  
703 -AT+PORT  :  Application Port    
704 704  
705 -AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
998 +The battery related documents as below:
706 706  
707 - AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
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 +)))
708 708  
1010 + [[image:image-20220610172400-3.png]]
709 709  
710 710  
711 -== 3.2  Set Interrupt Mode ==
712 712  
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 +== 3.2  Set Transmit Interval Time ==
1131 +
1132 +Feature: Change LoRaWAN End Node Transmit Interval.
1133 +
1134 +(% style="color:#037691" %)**AT Command: AT+TDC**
1135 +
1136 +[[image:image-20220610173409-7.png]]
1137 +
1138 +
1139 +(((
1140 +(% style="color:#037691" %)**Downlink Command: 0x01**
1141 +)))
1142 +
1143 +(((
1144 +(((
1145 +Format: Command Code (0x01) followed by 3 bytes time value.
1146 +
1147 +(((
1148 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1149 +)))
1150 +
1151 +* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1152 +* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1153 +)))
1154 +)))
1155 +
1156 +
1157 +
1158 +
1159 +
1160 +== 3.3  Set Interrupt Mode ==
1161 +
713 713  Feature, Set Interrupt mode for GPIO_EXIT.
714 714  
715 715  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
... ... @@ -728,23 +728,27 @@
728 728  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
729 729  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
730 730  
731 -
732 -
733 733  = 4.  FAQ =
734 734  
735 -== 4.1  What is the frequency plan for LDDS20? ==
1182 +== 4.1  What is the frequency plan for LDDS75? ==
736 736  
737 -LDDS20 use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
1184 +LDDS75 use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
738 738  
739 739  
740 740  
741 741  == 4.2  How to change the LoRa Frequency Bands/Region ==
742 742  
743 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.7A0200BFirmwareChangeLog"]].
1190 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
744 744  When downloading the images, choose the required image file for download. ​
745 745  
746 746  
747 747  
1195 +== 4.3  Can I use LDDS75 in condensation environment? ==
1196 +
1197 +LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1198 +
1199 +
1200 +
748 748  = 5.  Trouble Shooting =
749 749  
750 750  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
... ... @@ -764,7 +764,7 @@
764 764  = 6.  Order Info =
765 765  
766 766  
767 -Part Number **:** (% style="color:blue" %)**LDDS20-XX**
1220 +Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
768 768  
769 769  
770 770  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
... ... @@ -778,20 +778,18 @@
778 778  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
779 779  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
780 780  
1234 +(% style="color:blue" %)**YY**(%%): Battery Option
781 781  
1236 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1237 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1238 +
782 782  = 7. ​ Packing Info =
783 783  
784 784  
785 785  **Package Includes**:
786 786  
787 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
1244 +* LDDS75 LoRaWAN Distance Detection Sensor x 1
788 788  
789 -
790 -(% style="color:red" %)**Note:**
791 -
792 -(% style="color:red" %)**Ultrasonic coupling paste**(%%) and(% style="color:red" %)** Eproxy AB glue**(%%) are subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
793 -
794 -
795 795  **Dimension and weight**:
796 796  
797 797  * Device Size: cm
... ... @@ -799,7 +799,6 @@
799 799  * Package Size / pcs : cm
800 800  * Weight / pcs : g
801 801  
802 -
803 803  = 8.  ​Support =
804 804  
805 805  * 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.
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