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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 173.3
edited by Xiaoling
on 2022/06/15 10:11
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]]
... ... @@ -204,6 +204,7 @@
204 204  * Smart liquid control solution.
205 205  * Smart liquefied gas solution.
206 206  
201 +
207 207  == 1.7  Precautions ==
208 208  
209 209  * 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.
... ... @@ -210,6 +210,7 @@
210 210  * 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.
211 211  * 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.
212 212  
208 +
213 213  == 1.8  Pin mapping and power on ==
214 214  
215 215  
... ... @@ -368,6 +368,7 @@
368 368  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
369 369  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
370 370  
367 +
371 371  === 2.3.3  Interrupt Pin ===
372 372  
373 373  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.
... ... @@ -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]]
411 +[[image:1654850829385-439.png]]
415 415  
416 416  The payload decoder function for TTN V3 is here:
417 417  
... ... @@ -478,7 +478,7 @@
478 478  
479 479  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
480 480  
481 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
478 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
482 482  
483 483  [[image:1654851029373-510.png]]
484 484  
... ... @@ -489,227 +489,682 @@
489 489  
490 490  
491 491  
492 -== 2.6  LED Indicator ==
489 +== 2.6  Frequency Plans ==
493 493  
494 -The LDDS20 has an internal LED which is to show the status of different state.
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 +)))
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 ==
497 +=== 2.6.1  EU863-870 (EU868) ===
503 503  
499 +(((
500 +(% style="color:blue" %)**Uplink:**
501 +)))
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/]]
504 +868.1 - SF7BW125 to SF12BW125
507 507  )))
508 508  
509 509  (((
508 +868.3 - SF7BW125 to SF12BW125 and SF7BW250
509 +)))
510 +
511 +(((
512 +868.5 - SF7BW125 to SF12BW125
513 +)))
514 +
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 +(((
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]]**
544 +(% style="color:blue" %)**Downlink:**
515 515  )))
516 516  
547 +(((
548 +Uplink channels 1-9 (RX1)
549 +)))
517 517  
551 +(((
552 +869.525 - SF9BW125 (RX2 downlink only)
553 +)))
518 518  
519 -== 2.8  Battery Analysis ==
520 520  
521 521  
557 +=== 2.6.2  US902-928(US915) ===
522 522  
559 +(((
560 +Used in USA, Canada and South America. Default use CHE=2
523 523  
524 -=== 2.8.1  Battery Type ===
562 +(% 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.
564 +903.9 - SF7BW125 to SF10BW125
527 527  
566 +904.1 - SF7BW125 to SF10BW125
528 528  
529 -The battery related documents as below:
568 +904.3 - SF7BW125 to SF10BW125
530 530  
531 -* (((
532 -[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
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 +
533 533  )))
534 -* (((
535 -[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
604 +
605 +=== 2.6.3  CN470-510 (CN470) ===
606 +
607 +(((
608 +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/]]
610 +
611 +(((
612 +(% style="color:blue" %)**Uplink:**
539 539  )))
540 540  
541 - [[image:image-20220615102527-16.png]]
615 +(((
616 +486.3 - SF7BW125 to SF12BW125
617 +)))
542 542  
619 +(((
620 +486.5 - SF7BW125 to SF12BW125
621 +)))
543 543  
623 +(((
624 +486.7 - SF7BW125 to SF12BW125
625 +)))
544 544  
545 -== 2.8.2  Battery Note ==
627 +(((
628 +486.9 - SF7BW125 to SF12BW125
629 +)))
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.
631 +(((
632 +487.1 - SF7BW125 to SF12BW125
633 +)))
548 548  
635 +(((
636 +487.3 - SF7BW125 to SF12BW125
637 +)))
549 549  
639 +(((
640 +487.5 - SF7BW125 to SF12BW125
641 +)))
550 550  
551 -=== 2.8.3  Replace the battery ===
643 +(((
644 +487.7 - SF7BW125 to SF12BW125
645 +)))
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.
648 +
555 555  )))
556 556  
557 557  (((
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 +
558 558  
559 559  )))
560 560  
741 +=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
742 +
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)
744 +(% style="color:blue" %)**Default Uplink channel:**
563 563  )))
564 564  
747 +(((
748 +923.2 - SF7BW125 to SF10BW125
749 +)))
565 565  
751 +(((
752 +923.4 - SF7BW125 to SF10BW125
753 +)))
566 566  
567 -== 2.8.4  Battery Life Analyze ==
755 +(((
756 +
757 +)))
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:
759 +(((
760 +(% style="color:blue" %)**Additional Uplink Channel**:
761 +)))
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]]
763 +(((
764 +(OTAA mode, channel added by JoinAccept message)
765 +)))
572 572  
767 +(((
768 +
769 +)))
573 573  
771 +(((
772 +(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
773 +)))
574 574  
575 -= 3.  Using the AT Commands =
775 +(((
776 +922.2 - SF7BW125 to SF10BW125
777 +)))
576 576  
577 577  (((
780 +922.4 - SF7BW125 to SF10BW125
781 +)))
782 +
578 578  (((
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 +(((
579 579  
580 580  )))
802 +
803 +(((
804 +(% 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 ==
807 +(((
808 +923.6 - SF7BW125 to SF10BW125
809 +)))
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.
811 +(((
812 +923.8 - SF7BW125 to SF10BW125
813 +)))
586 586  
815 +(((
816 +924.0 - SF7BW125 to SF10BW125
817 +)))
587 587  
588 -[[image:image-20220610172924-4.png||height="483" width="988"]]
819 +(((
820 +924.2 - SF7BW125 to SF10BW125
821 +)))
589 589  
823 +(((
824 +924.4 - SF7BW125 to SF10BW125
825 +)))
590 590  
591 -Or if you have below board, use below connection:
827 +(((
828 +924.6 - SF7BW125 to SF10BW125
829 +)))
592 592  
831 +(((
832 +
833 +)))
593 593  
594 -[[image:image-20220610172924-5.png]]
835 +(((
836 +(% style="color:blue" %)**Downlink:**
837 +)))
595 595  
839 +(((
840 +Uplink channels 1-8 (RX1)
841 +)))
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:
844 +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/]].
849 +=== 2.6.6  KR920-923 (KR920) ===
605 605  
851 +(((
852 +(% style="color:blue" %)**Default channel:**
853 +)))
606 606  
607 -AT+<CMD>?  :  Help on <CMD>
855 +(((
856 +922.1 - SF7BW125 to SF12BW125
857 +)))
608 608  
609 -AT+<CMD>  :  Run <CMD>
859 +(((
860 +922.3 - SF7BW125 to SF12BW125
861 +)))
610 610  
611 -AT+<CMD>=<value>  :  Set the value
863 +(((
864 +922.5 - SF7BW125 to SF12BW125
865 +)))
612 612  
613 -AT+<CMD>=?  :  Get the value
867 +(((
868 +
869 +)))
614 614  
871 +(((
872 +(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
873 +)))
615 615  
616 -(% style="color:#037691" %)** General Commands :**     
875 +(((
876 +922.1 - SF7BW125 to SF12BW125
877 +)))
617 617  
618 -AT  :  Attention       
879 +(((
880 +922.3 - SF7BW125 to SF12BW125
881 +)))
619 619  
620 -AT?  :  Short Help     
883 +(((
884 +922.5 - SF7BW125 to SF12BW125
885 +)))
621 621  
622 -ATZ :  MCU Reset    
887 +(((
888 +922.7 - SF7BW125 to SF12BW125
889 +)))
623 623  
624 -AT+TDC :  Application Data Transmission Interval 
891 +(((
892 +922.9 - SF7BW125 to SF12BW125
893 +)))
625 625  
895 +(((
896 +923.1 - SF7BW125 to SF12BW125
897 +)))
626 626  
627 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
899 +(((
900 +923.3 - SF7BW125 to SF12BW125
901 +)))
628 628  
629 -AT+APPEUI  :  Application EUI      
903 +(((
904 +
905 +)))
630 630  
631 -AT+APPKEY  :  Application Key     
907 +(((
908 +(% style="color:blue" %)**Downlink:**
909 +)))
632 632  
633 -AT+APPSKEY  :  Application Session Key
911 +(((
912 +Uplink channels 1-7(RX1)
913 +)))
634 634  
635 -AT+DADDR :  Device Address     
915 +(((
916 +921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
917 +)))
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  
921 +=== 2.6.7  IN865-867 (IN865) ===
642 642  
643 -AT+CFM :  Confirm Mode       
923 +(((
924 +(% style="color:blue" %)**Uplink:**
925 +)))
644 644  
645 -AT+CFS :  Confirm Status       
927 +(((
928 +865.0625 - SF7BW125 to SF12BW125
929 +)))
646 646  
647 -AT+JOIN  :  Join LoRa? Network       
931 +(((
932 +865.4025 - SF7BW125 to SF12BW125
933 +)))
648 648  
649 -AT+NJM  :  LoRa? Network Join Mode    
935 +(((
936 +865.9850 - SF7BW125 to SF12BW125
937 +)))
650 650  
651 -AT+NJS  :  LoRa? Network Join Status    
939 +(((
940 +
941 +)))
652 652  
653 -AT+RECV  :  Print Last Received Data in Raw Format
943 +(((
944 +(% style="color:blue" %)**Downlink:**
945 +)))
654 654  
655 -AT+RECVB :  Print Last Received Data in Binary Format      
947 +(((
948 +Uplink channels 1-3 (RX1)
949 +)))
656 656  
657 -AT+SEND  :  Send Text Data      
951 +(((
952 +866.550 - SF10BW125 (RX2)
953 +)))
658 658  
659 -AT+SENB  :  Send Hexadecimal Data
660 660  
661 661  
662 -(% style="color:#037691" %)** LoRa Network Management :**
957 +== 2.7  LED Indicator ==
663 663  
664 -AT+ADR  :  Adaptive Rate
959 +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 
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.
669 669  
670 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
967 +== 2.8  ​Firmware Change Log ==
671 671  
672 -AT+FCD  :  Frame Counter Downlink       
673 673  
674 -AT+FCU  :  Frame Counter Uplink   
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 +)))
675 675  
676 -AT+JN1DL  :  Join Accept Delay1
974 +(((
975 +
976 +)))
677 677  
678 -AT+JN2DL  :  Join Accept Delay2
978 +(((
979 +**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
980 +)))
679 679  
680 -AT+PNM  :  Public Network Mode   
681 681  
682 -AT+RX1DL  :  Receive Delay1      
683 683  
684 -AT+RX2DL  :  Receive Delay2      
984 +== 2.9  Mechanical ==
685 685  
686 -AT+RX2DR  :  Rx2 Window Data Rate 
687 687  
688 -AT+RX2FQ  :  Rx2 Window Frequency
987 +[[image:image-20220610172003-1.png]]
689 689  
690 -AT+TXP  :  Transmit Power
691 691  
990 +[[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   
994 +== 2.10  Battery Analysis ==
698 698  
699 -AT+VER  :  Image Version and Frequency Band       
996 +=== 2.10.1  Battery Type ===
700 700  
701 -AT+FDR  :  Factory Data Reset
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.
702 702  
703 -AT+PORT  :  Application Port    
704 704  
705 -AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1001 +The battery related documents as below:
706 706  
707 - AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
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 +)))
708 708  
1013 + [[image:image-20220610172400-3.png]]
709 709  
710 710  
711 -== 3.2  Set Interrupt Mode ==
712 712  
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 +== 3.2  Set Transmit Interval Time ==
1134 +
1135 +Feature: Change LoRaWAN End Node Transmit Interval.
1136 +
1137 +(% style="color:#037691" %)**AT Command: AT+TDC**
1138 +
1139 +[[image:image-20220610173409-7.png]]
1140 +
1141 +
1142 +(((
1143 +(% style="color:#037691" %)**Downlink Command: 0x01**
1144 +)))
1145 +
1146 +(((
1147 +(((
1148 +Format: Command Code (0x01) followed by 3 bytes time value.
1149 +
1150 +(((
1151 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1152 +)))
1153 +
1154 +* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1155 +* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1156 +)))
1157 +)))
1158 +
1159 +
1160 +
1161 +
1162 +
1163 +== 3.3  Set Interrupt Mode ==
1164 +
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? ==
1185 +== 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"]]
1187 +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"]].
1193 +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  
1198 +== 4.3  Can I use LDDS75 in condensation environment? ==
1199 +
1200 +LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1201 +
1202 +
1203 +
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**
1223 +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  
1237 +(% style="color:blue" %)**YY**(%%): Battery Option
781 781  
1239 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1240 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1241 +
782 782  = 7. ​ Packing Info =
783 783  
784 784  
785 785  **Package Includes**:
786 786  
787 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
1247 +* 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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