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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.21
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]]
... ... @@ -204,9 +204,6 @@
204 204  * Smart liquid control solution.
205 205  * Smart liquefied gas solution.
206 206  
207 -
208 -
209 -
210 210  == 1.7  Precautions ==
211 211  
212 212  * 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.
... ... @@ -213,9 +213,6 @@
213 213  * 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.
214 214  * 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.
215 215  
216 -
217 -
218 -
219 219  == 1.8  Pin mapping and power on ==
220 220  
221 221  
... ... @@ -417,7 +417,7 @@
417 417  While using TTN network, you can add the payload format to decode the payload.
418 418  
419 419  
420 -[[image:1655261164557-670.png]]
408 +[[image:1654850829385-439.png]]
421 421  
422 422  The payload decoder function for TTN V3 is here:
423 423  
... ... @@ -495,227 +495,682 @@
495 495  
496 496  
497 497  
498 -== 2.6  LED Indicator ==
486 +== 2.6  Frequency Plans ==
499 499  
500 -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 +)))
501 501  
502 502  
503 -* Blink once when device power on.
504 -* The device detects the sensor and flashes 5 times.
505 -* Solid ON for 5 seconds once device successful Join the network.
506 -* Blink once when device transmit a packet.
507 507  
508 -== 2.7  ​Firmware Change Log ==
494 +=== 2.6.1  EU863-870 (EU868) ===
509 509  
496 +(((
497 +(% style="color:blue" %)**Uplink:**
498 +)))
510 510  
511 511  (((
512 -**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
513 513  )))
514 514  
515 515  (((
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 +(((
516 516  
517 517  )))
518 518  
519 519  (((
520 -**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
541 +(% style="color:blue" %)**Downlink:**
521 521  )))
522 522  
544 +(((
545 +Uplink channels 1-9 (RX1)
546 +)))
523 523  
548 +(((
549 +869.525 - SF9BW125 (RX2 downlink only)
550 +)))
524 524  
525 -== 2.8  Battery Analysis ==
526 526  
527 527  
554 +=== 2.6.2  US902-928(US915) ===
528 528  
556 +(((
557 +Used in USA, Canada and South America. Default use CHE=2
529 529  
530 -=== 2.8.1  Battery Type ===
559 +(% style="color:blue" %)**Uplink:**
531 531  
532 -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
533 533  
563 +904.1 - SF7BW125 to SF10BW125
534 534  
535 -The battery related documents as below:
565 +904.3 - SF7BW125 to SF10BW125
536 536  
537 -* (((
538 -[[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 +
539 539  )))
540 -* (((
541 -[[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
542 542  )))
543 -* (((
544 -[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
607 +
608 +(((
609 +(% style="color:blue" %)**Uplink:**
545 545  )))
546 546  
547 - [[image:image-20220615102527-16.png]]
612 +(((
613 +486.3 - SF7BW125 to SF12BW125
614 +)))
548 548  
616 +(((
617 +486.5 - SF7BW125 to SF12BW125
618 +)))
549 549  
620 +(((
621 +486.7 - SF7BW125 to SF12BW125
622 +)))
550 550  
551 -== 2.8.2  Battery Note ==
624 +(((
625 +486.9 - SF7BW125 to SF12BW125
626 +)))
552 552  
553 -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 +)))
554 554  
632 +(((
633 +487.3 - SF7BW125 to SF12BW125
634 +)))
555 555  
636 +(((
637 +487.5 - SF7BW125 to SF12BW125
638 +)))
556 556  
557 -=== 2.8.3  Replace the battery ===
640 +(((
641 +487.7 - SF7BW125 to SF12BW125
642 +)))
558 558  
559 559  (((
560 -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 +
561 561  )))
562 562  
563 563  (((
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 +
564 564  
565 565  )))
566 566  
738 +=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
739 +
567 567  (((
568 -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:**
569 569  )))
570 570  
744 +(((
745 +923.2 - SF7BW125 to SF10BW125
746 +)))
571 571  
748 +(((
749 +923.4 - SF7BW125 to SF10BW125
750 +)))
572 572  
573 -== 2.8.4  Battery Life Analyze ==
752 +(((
753 +
754 +)))
574 574  
575 -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 +)))
576 576  
577 -[[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 +)))
578 578  
764 +(((
765 +
766 +)))
579 579  
768 +(((
769 +(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
770 +)))
580 580  
581 -= 3.  Using the AT Commands =
772 +(((
773 +922.2 - SF7BW125 to SF10BW125
774 +)))
582 582  
583 583  (((
777 +922.4 - SF7BW125 to SF10BW125
778 +)))
779 +
584 584  (((
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 +(((
585 585  
586 586  )))
799 +
800 +(((
801 +(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
587 587  )))
588 588  
589 -== 3.1  Access AT Commands ==
804 +(((
805 +923.6 - SF7BW125 to SF10BW125
806 +)))
590 590  
591 -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 +)))
592 592  
812 +(((
813 +924.0 - SF7BW125 to SF10BW125
814 +)))
593 593  
594 -[[image:image-20220610172924-4.png||height="483" width="988"]]
816 +(((
817 +924.2 - SF7BW125 to SF10BW125
818 +)))
595 595  
820 +(((
821 +924.4 - SF7BW125 to SF10BW125
822 +)))
596 596  
597 -Or if you have below board, use below connection:
824 +(((
825 +924.6 - SF7BW125 to SF10BW125
826 +)))
598 598  
828 +(((
829 +
830 +)))
599 599  
600 -[[image:image-20220610172924-5.png]]
832 +(((
833 +(% style="color:blue" %)**Downlink:**
834 +)))
601 601  
836 +(((
837 +Uplink channels 1-8 (RX1)
838 +)))
602 602  
603 603  (((
604 -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)
605 605  )))
606 606  
607 607  
608 - [[image:image-20220610172924-6.png||height="601" width="860"]]
609 609  
610 -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) ===
611 611  
848 +(((
849 +(% style="color:blue" %)**Default channel:**
850 +)))
612 612  
613 -AT+<CMD>?  :  Help on <CMD>
852 +(((
853 +922.1 - SF7BW125 to SF12BW125
854 +)))
614 614  
615 -AT+<CMD>  :  Run <CMD>
856 +(((
857 +922.3 - SF7BW125 to SF12BW125
858 +)))
616 616  
617 -AT+<CMD>=<value>  :  Set the value
860 +(((
861 +922.5 - SF7BW125 to SF12BW125
862 +)))
618 618  
619 -AT+<CMD>=?  :  Get the value
864 +(((
865 +
866 +)))
620 620  
868 +(((
869 +(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
870 +)))
621 621  
622 -(% style="color:#037691" %)** General Commands :**     
872 +(((
873 +922.1 - SF7BW125 to SF12BW125
874 +)))
623 623  
624 -AT  :  Attention       
876 +(((
877 +922.3 - SF7BW125 to SF12BW125
878 +)))
625 625  
626 -AT?  :  Short Help     
880 +(((
881 +922.5 - SF7BW125 to SF12BW125
882 +)))
627 627  
628 -ATZ :  MCU Reset    
884 +(((
885 +922.7 - SF7BW125 to SF12BW125
886 +)))
629 629  
630 -AT+TDC :  Application Data Transmission Interval 
888 +(((
889 +922.9 - SF7BW125 to SF12BW125
890 +)))
631 631  
892 +(((
893 +923.1 - SF7BW125 to SF12BW125
894 +)))
632 632  
633 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
896 +(((
897 +923.3 - SF7BW125 to SF12BW125
898 +)))
634 634  
635 -AT+APPEUI  :  Application EUI      
900 +(((
901 +
902 +)))
636 636  
637 -AT+APPKEY  :  Application Key     
904 +(((
905 +(% style="color:blue" %)**Downlink:**
906 +)))
638 638  
639 -AT+APPSKEY  :  Application Session Key
908 +(((
909 +Uplink channels 1-7(RX1)
910 +)))
640 640  
641 -AT+DADDR :  Device Address     
912 +(((
913 +921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
914 +)))
642 642  
643 -AT+DEUI :  Device EUI     
644 644  
645 -AT+NWKID  :  Network ID (You can enter this command change only after successful network connection) 
646 646  
647 -AT+NWKSKEY  : Network Session Key Joining and sending date on LoRa network  
918 +=== 2.6.7  IN865-867 (IN865) ===
648 648  
649 -AT+CFM :  Confirm Mode       
920 +(((
921 +(% style="color:blue" %)**Uplink:**
922 +)))
650 650  
651 -AT+CFS :  Confirm Status       
924 +(((
925 +865.0625 - SF7BW125 to SF12BW125
926 +)))
652 652  
653 -AT+JOIN  :  Join LoRa? Network       
928 +(((
929 +865.4025 - SF7BW125 to SF12BW125
930 +)))
654 654  
655 -AT+NJM  :  LoRa? Network Join Mode    
932 +(((
933 +865.9850 - SF7BW125 to SF12BW125
934 +)))
656 656  
657 -AT+NJS  :  LoRa? Network Join Status    
936 +(((
937 +
938 +)))
658 658  
659 -AT+RECV  :  Print Last Received Data in Raw Format
940 +(((
941 +(% style="color:blue" %)**Downlink:**
942 +)))
660 660  
661 -AT+RECVB :  Print Last Received Data in Binary Format      
944 +(((
945 +Uplink channels 1-3 (RX1)
946 +)))
662 662  
663 -AT+SEND  :  Send Text Data      
948 +(((
949 +866.550 - SF10BW125 (RX2)
950 +)))
664 664  
665 -AT+SENB  :  Send Hexadecimal Data
666 666  
667 667  
668 -(% style="color:#037691" %)** LoRa Network Management :**
954 +== 2.7  LED Indicator ==
669 669  
670 -AT+ADR  :  Adaptive Rate
956 +The LDDS75 has an internal LED which is to show the status of different state.
671 671  
672 -AT+CLASS  :  LoRa Class(Currently only support class A
673 673  
674 -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.
675 675  
676 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
964 +== 2.8  ​Firmware Change Log ==
677 677  
678 -AT+FCD  :  Frame Counter Downlink       
679 679  
680 -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 +)))
681 681  
682 -AT+JN1DL  :  Join Accept Delay1
971 +(((
972 +
973 +)))
683 683  
684 -AT+JN2DL  :  Join Accept Delay2
975 +(((
976 +**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
977 +)))
685 685  
686 -AT+PNM  :  Public Network Mode   
687 687  
688 -AT+RX1DL  :  Receive Delay1      
689 689  
690 -AT+RX2DL  :  Receive Delay2      
981 +== 2.9  Mechanical ==
691 691  
692 -AT+RX2DR  :  Rx2 Window Data Rate 
693 693  
694 -AT+RX2FQ  :  Rx2 Window Frequency
984 +[[image:image-20220610172003-1.png]]
695 695  
696 -AT+TXP  :  Transmit Power
697 697  
987 +[[image:image-20220610172003-2.png]]
698 698  
699 -(% style="color:#037691" %)** Information :**
700 700  
701 -AT+RSSI  :  RSSI of the Last Received Packet   
702 702  
703 -AT+SNR  :  SNR of the Last Received Packet   
991 +== 2.10  Battery Analysis ==
704 704  
705 -AT+VER  :  Image Version and Frequency Band       
993 +=== 2.10.1  Battery Type ===
706 706  
707 -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.
708 708  
709 -AT+PORT  :  Application Port    
710 710  
711 -AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
998 +The battery related documents as below:
712 712  
713 - 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 +)))
714 714  
1010 + [[image:image-20220610172400-3.png]]
715 715  
716 716  
717 -== 3.2  Set Interrupt Mode ==
718 718  
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 +
719 719  Feature, Set Interrupt mode for GPIO_EXIT.
720 720  
721 721  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
... ... @@ -734,23 +734,27 @@
734 734  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
735 735  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
736 736  
737 -
738 -
739 739  = 4.  FAQ =
740 740  
741 -== 4.1  What is the frequency plan for LDDS20? ==
1182 +== 4.1  What is the frequency plan for LDDS75? ==
742 742  
743 -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"]]
744 744  
745 745  
746 746  
747 747  == 4.2  How to change the LoRa Frequency Bands/Region ==
748 748  
749 -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"]].
750 750  When downloading the images, choose the required image file for download. ​
751 751  
752 752  
753 753  
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 +
754 754  = 5.  Trouble Shooting =
755 755  
756 756  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
... ... @@ -770,7 +770,7 @@
770 770  = 6.  Order Info =
771 771  
772 772  
773 -Part Number **:** (% style="color:blue" %)**LDDS20-XX**
1220 +Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
774 774  
775 775  
776 776  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
... ... @@ -784,20 +784,18 @@
784 784  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
785 785  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
786 786  
1234 +(% style="color:blue" %)**YY**(%%): Battery Option
787 787  
1236 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1237 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1238 +
788 788  = 7. ​ Packing Info =
789 789  
790 790  
791 791  **Package Includes**:
792 792  
793 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
1244 +* LDDS75 LoRaWAN Distance Detection Sensor x 1
794 794  
795 -
796 -(% style="color:red" %)**Note:**
797 -
798 -(% 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.
799 -
800 -
801 801  **Dimension and weight**:
802 802  
803 803  * Device Size: cm
... ... @@ -805,7 +805,6 @@
805 805  * Package Size / pcs : cm
806 806  * Weight / pcs : g
807 807  
808 -
809 809  = 8.  ​Support =
810 810  
811 811  * 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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