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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 173.3
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]]
... ... @@ -205,8 +205,6 @@
205 205  * Smart liquefied gas solution.
206 206  
207 207  
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.
... ... @@ -214,8 +214,6 @@
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  
216 216  
217 -
218 -
219 219  == 1.8  Pin mapping and power on ==
220 220  
221 221  
... ... @@ -374,6 +374,7 @@
374 374  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
375 375  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
376 376  
367 +
377 377  === 2.3.3  Interrupt Pin ===
378 378  
379 379  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.
... ... @@ -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]]
411 +[[image:1654850829385-439.png]]
421 421  
422 422  The payload decoder function for TTN V3 is here:
423 423  
... ... @@ -484,7 +484,7 @@
484 484  
485 485  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
486 486  
487 -(% 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.**
488 488  
489 489  [[image:1654851029373-510.png]]
490 490  
... ... @@ -495,227 +495,682 @@
495 495  
496 496  
497 497  
498 -== 2.6  LED Indicator ==
489 +== 2.6  Frequency Plans ==
499 499  
500 -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 +)))
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 ==
497 +=== 2.6.1  EU863-870 (EU868) ===
509 509  
499 +(((
500 +(% style="color:blue" %)**Uplink:**
501 +)))
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/]]
504 +868.1 - SF7BW125 to SF12BW125
513 513  )))
514 514  
515 515  (((
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 +(((
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]]**
544 +(% style="color:blue" %)**Downlink:**
521 521  )))
522 522  
547 +(((
548 +Uplink channels 1-9 (RX1)
549 +)))
523 523  
551 +(((
552 +869.525 - SF9BW125 (RX2 downlink only)
553 +)))
524 524  
525 -== 2.8  Battery Analysis ==
526 526  
527 527  
557 +=== 2.6.2  US902-928(US915) ===
528 528  
559 +(((
560 +Used in USA, Canada and South America. Default use CHE=2
529 529  
530 -=== 2.8.1  Battery Type ===
562 +(% 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.
564 +903.9 - SF7BW125 to SF10BW125
533 533  
566 +904.1 - SF7BW125 to SF10BW125
534 534  
535 -The battery related documents as below:
568 +904.3 - SF7BW125 to SF10BW125
536 536  
537 -* (((
538 -[[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 +
539 539  )))
540 -* (((
541 -[[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
542 542  )))
543 -* (((
544 -[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
610 +
611 +(((
612 +(% style="color:blue" %)**Uplink:**
545 545  )))
546 546  
547 - [[image:image-20220615102527-16.png]]
615 +(((
616 +486.3 - SF7BW125 to SF12BW125
617 +)))
548 548  
619 +(((
620 +486.5 - SF7BW125 to SF12BW125
621 +)))
549 549  
623 +(((
624 +486.7 - SF7BW125 to SF12BW125
625 +)))
550 550  
551 -== 2.8.2  Battery Note ==
627 +(((
628 +486.9 - SF7BW125 to SF12BW125
629 +)))
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.
631 +(((
632 +487.1 - SF7BW125 to SF12BW125
633 +)))
554 554  
635 +(((
636 +487.3 - SF7BW125 to SF12BW125
637 +)))
555 555  
639 +(((
640 +487.5 - SF7BW125 to SF12BW125
641 +)))
556 556  
557 -=== 2.8.3  Replace the battery ===
643 +(((
644 +487.7 - SF7BW125 to SF12BW125
645 +)))
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.
648 +
561 561  )))
562 562  
563 563  (((
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 +
564 564  
565 565  )))
566 566  
741 +=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
742 +
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)
744 +(% style="color:blue" %)**Default Uplink channel:**
569 569  )))
570 570  
747 +(((
748 +923.2 - SF7BW125 to SF10BW125
749 +)))
571 571  
751 +(((
752 +923.4 - SF7BW125 to SF10BW125
753 +)))
572 572  
573 -== 2.8.4  Battery Life Analyze ==
755 +(((
756 +
757 +)))
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:
759 +(((
760 +(% style="color:blue" %)**Additional Uplink Channel**:
761 +)))
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]]
763 +(((
764 +(OTAA mode, channel added by JoinAccept message)
765 +)))
578 578  
767 +(((
768 +
769 +)))
579 579  
771 +(((
772 +(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
773 +)))
580 580  
581 -= 3.  Using the AT Commands =
775 +(((
776 +922.2 - SF7BW125 to SF10BW125
777 +)))
582 582  
583 583  (((
780 +922.4 - SF7BW125 to SF10BW125
781 +)))
782 +
584 584  (((
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 +(((
585 585  
586 586  )))
802 +
803 +(((
804 +(% 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 ==
807 +(((
808 +923.6 - SF7BW125 to SF10BW125
809 +)))
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.
811 +(((
812 +923.8 - SF7BW125 to SF10BW125
813 +)))
592 592  
815 +(((
816 +924.0 - SF7BW125 to SF10BW125
817 +)))
593 593  
594 -[[image:image-20220610172924-4.png||height="483" width="988"]]
819 +(((
820 +924.2 - SF7BW125 to SF10BW125
821 +)))
595 595  
823 +(((
824 +924.4 - SF7BW125 to SF10BW125
825 +)))
596 596  
597 -Or if you have below board, use below connection:
827 +(((
828 +924.6 - SF7BW125 to SF10BW125
829 +)))
598 598  
831 +(((
832 +
833 +)))
599 599  
600 -[[image:image-20220610172924-5.png]]
835 +(((
836 +(% style="color:blue" %)**Downlink:**
837 +)))
601 601  
839 +(((
840 +Uplink channels 1-8 (RX1)
841 +)))
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:
844 +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/]].
849 +=== 2.6.6  KR920-923 (KR920) ===
611 611  
851 +(((
852 +(% style="color:blue" %)**Default channel:**
853 +)))
612 612  
613 -AT+<CMD>?  :  Help on <CMD>
855 +(((
856 +922.1 - SF7BW125 to SF12BW125
857 +)))
614 614  
615 -AT+<CMD>  :  Run <CMD>
859 +(((
860 +922.3 - SF7BW125 to SF12BW125
861 +)))
616 616  
617 -AT+<CMD>=<value>  :  Set the value
863 +(((
864 +922.5 - SF7BW125 to SF12BW125
865 +)))
618 618  
619 -AT+<CMD>=?  :  Get the value
867 +(((
868 +
869 +)))
620 620  
871 +(((
872 +(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
873 +)))
621 621  
622 -(% style="color:#037691" %)** General Commands :**     
875 +(((
876 +922.1 - SF7BW125 to SF12BW125
877 +)))
623 623  
624 -AT  :  Attention       
879 +(((
880 +922.3 - SF7BW125 to SF12BW125
881 +)))
625 625  
626 -AT?  :  Short Help     
883 +(((
884 +922.5 - SF7BW125 to SF12BW125
885 +)))
627 627  
628 -ATZ :  MCU Reset    
887 +(((
888 +922.7 - SF7BW125 to SF12BW125
889 +)))
629 629  
630 -AT+TDC :  Application Data Transmission Interval 
891 +(((
892 +922.9 - SF7BW125 to SF12BW125
893 +)))
631 631  
895 +(((
896 +923.1 - SF7BW125 to SF12BW125
897 +)))
632 632  
633 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
899 +(((
900 +923.3 - SF7BW125 to SF12BW125
901 +)))
634 634  
635 -AT+APPEUI  :  Application EUI      
903 +(((
904 +
905 +)))
636 636  
637 -AT+APPKEY  :  Application Key     
907 +(((
908 +(% style="color:blue" %)**Downlink:**
909 +)))
638 638  
639 -AT+APPSKEY  :  Application Session Key
911 +(((
912 +Uplink channels 1-7(RX1)
913 +)))
640 640  
641 -AT+DADDR :  Device Address     
915 +(((
916 +921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
917 +)))
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  
921 +=== 2.6.7  IN865-867 (IN865) ===
648 648  
649 -AT+CFM :  Confirm Mode       
923 +(((
924 +(% style="color:blue" %)**Uplink:**
925 +)))
650 650  
651 -AT+CFS :  Confirm Status       
927 +(((
928 +865.0625 - SF7BW125 to SF12BW125
929 +)))
652 652  
653 -AT+JOIN  :  Join LoRa? Network       
931 +(((
932 +865.4025 - SF7BW125 to SF12BW125
933 +)))
654 654  
655 -AT+NJM  :  LoRa? Network Join Mode    
935 +(((
936 +865.9850 - SF7BW125 to SF12BW125
937 +)))
656 656  
657 -AT+NJS  :  LoRa? Network Join Status    
939 +(((
940 +
941 +)))
658 658  
659 -AT+RECV  :  Print Last Received Data in Raw Format
943 +(((
944 +(% style="color:blue" %)**Downlink:**
945 +)))
660 660  
661 -AT+RECVB :  Print Last Received Data in Binary Format      
947 +(((
948 +Uplink channels 1-3 (RX1)
949 +)))
662 662  
663 -AT+SEND  :  Send Text Data      
951 +(((
952 +866.550 - SF10BW125 (RX2)
953 +)))
664 664  
665 -AT+SENB  :  Send Hexadecimal Data
666 666  
667 667  
668 -(% style="color:#037691" %)** LoRa Network Management :**
957 +== 2.7  LED Indicator ==
669 669  
670 -AT+ADR  :  Adaptive Rate
959 +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 
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.
675 675  
676 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
967 +== 2.8  ​Firmware Change Log ==
677 677  
678 -AT+FCD  :  Frame Counter Downlink       
679 679  
680 -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 +)))
681 681  
682 -AT+JN1DL  :  Join Accept Delay1
974 +(((
975 +
976 +)))
683 683  
684 -AT+JN2DL  :  Join Accept Delay2
978 +(((
979 +**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
980 +)))
685 685  
686 -AT+PNM  :  Public Network Mode   
687 687  
688 -AT+RX1DL  :  Receive Delay1      
689 689  
690 -AT+RX2DL  :  Receive Delay2      
984 +== 2.9  Mechanical ==
691 691  
692 -AT+RX2DR  :  Rx2 Window Data Rate 
693 693  
694 -AT+RX2FQ  :  Rx2 Window Frequency
987 +[[image:image-20220610172003-1.png]]
695 695  
696 -AT+TXP  :  Transmit Power
697 697  
990 +[[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   
994 +== 2.10  Battery Analysis ==
704 704  
705 -AT+VER  :  Image Version and Frequency Band       
996 +=== 2.10.1  Battery Type ===
706 706  
707 -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.
708 708  
709 -AT+PORT  :  Application Port    
710 710  
711 -AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1001 +The battery related documents as below:
712 712  
713 - 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 +)))
714 714  
1013 + [[image:image-20220610172400-3.png]]
715 715  
716 716  
717 -== 3.2  Set Interrupt Mode ==
718 718  
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 +
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? ==
1185 +== 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"]]
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"]]
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"]].
1193 +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  
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 +
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**
1223 +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  
1237 +(% style="color:blue" %)**YY**(%%): Battery Option
787 787  
1239 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1240 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1241 +
788 788  = 7. ​ Packing Info =
789 789  
790 790  
791 791  **Package Includes**:
792 792  
793 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
1247 +* 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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