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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.20
edited by Xiaoling
on 2022/06/15 11:08
Change comment: There is no comment for this version
To version 173.2
edited by Xiaoling
on 2022/06/15 10:10
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -101,8 +101,6 @@
101 101  * 8500mAh Battery for long term use
102 102  
103 103  
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.
... ... @@ -113,8 +113,6 @@
113 113  * Pure liquid without irregular deposition.
114 114  
115 115  
116 -
117 -
118 118  == 1.4  Mechanical ==
119 119  
120 120  [[image:image-20220615090910-1.png]]
... ... @@ -206,7 +206,6 @@
206 206  
207 207  
208 208  
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.
... ... @@ -213,6 +213,8 @@
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  
211 +
212 +
216 216  == 1.8  Pin mapping and power on ==
217 217  
218 218  
... ... @@ -371,6 +371,8 @@
371 371  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
372 372  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
373 373  
371 +
372 +
374 374  === 2.3.3  Interrupt Pin ===
375 375  
376 376  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.
... ... @@ -414,7 +414,7 @@
414 414  While using TTN network, you can add the payload format to decode the payload.
415 415  
416 416  
417 -[[image:1655261164557-670.png]]
416 +[[image:1654850829385-439.png]]
418 418  
419 419  The payload decoder function for TTN V3 is here:
420 420  
... ... @@ -434,7 +434,7 @@
434 434  **Examples:**
435 435  
436 436  
437 -* (% style="color:blue" %)**Set TDC**
436 +* **Set TDC**
438 438  
439 439  If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
440 440  
... ... @@ -443,12 +443,12 @@
443 443  Payload:    01 00 00 3C    TDC=60S
444 444  
445 445  
446 -* (% style="color:blue" %)**Reset**
445 +* **Reset**
447 447  
448 448  If payload = 0x04FF, it will reset the LDDS20
449 449  
450 450  
451 -* (% style="color:blue" %)**CFM**
450 +* **CFM**
452 452  
453 453  Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
454 454  
... ... @@ -481,7 +481,7 @@
481 481  
482 482  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
483 483  
484 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
483 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
485 485  
486 486  [[image:1654851029373-510.png]]
487 487  
... ... @@ -492,227 +492,682 @@
492 492  
493 493  
494 494  
495 -== 2.6  LED Indicator ==
494 +== 2.6  Frequency Plans ==
496 496  
497 -The LDDS20 has an internal LED which is to show the status of different state.
496 +(((
497 +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.
498 +)))
498 498  
499 499  
500 -* Blink once when device power on.
501 -* The device detects the sensor and flashes 5 times.
502 -* Solid ON for 5 seconds once device successful Join the network.
503 -* Blink once when device transmit a packet.
504 504  
505 -== 2.7  ​Firmware Change Log ==
502 +=== 2.6.1  EU863-870 (EU868) ===
506 506  
504 +(((
505 +(% style="color:blue" %)**Uplink:**
506 +)))
507 507  
508 508  (((
509 -**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/]]
509 +868.1 - SF7BW125 to SF12BW125
510 510  )))
511 511  
512 512  (((
513 +868.3 - SF7BW125 to SF12BW125 and SF7BW250
514 +)))
515 +
516 +(((
517 +868.5 - SF7BW125 to SF12BW125
518 +)))
519 +
520 +(((
521 +867.1 - SF7BW125 to SF12BW125
522 +)))
523 +
524 +(((
525 +867.3 - SF7BW125 to SF12BW125
526 +)))
527 +
528 +(((
529 +867.5 - SF7BW125 to SF12BW125
530 +)))
531 +
532 +(((
533 +867.7 - SF7BW125 to SF12BW125
534 +)))
535 +
536 +(((
537 +867.9 - SF7BW125 to SF12BW125
538 +)))
539 +
540 +(((
541 +868.8 - FSK
542 +)))
543 +
544 +(((
513 513  
514 514  )))
515 515  
516 516  (((
517 -**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
549 +(% style="color:blue" %)**Downlink:**
518 518  )))
519 519  
552 +(((
553 +Uplink channels 1-9 (RX1)
554 +)))
520 520  
556 +(((
557 +869.525 - SF9BW125 (RX2 downlink only)
558 +)))
521 521  
522 -== 2.8  Battery Analysis ==
523 523  
524 524  
562 +=== 2.6.2  US902-928(US915) ===
525 525  
564 +(((
565 +Used in USA, Canada and South America. Default use CHE=2
526 526  
527 -=== 2.8.1  Battery Type ===
567 +(% style="color:blue" %)**Uplink:**
528 528  
529 -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.
569 +903.9 - SF7BW125 to SF10BW125
530 530  
571 +904.1 - SF7BW125 to SF10BW125
531 531  
532 -The battery related documents as below:
573 +904.3 - SF7BW125 to SF10BW125
533 533  
534 -* (((
535 -[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
575 +904.5 - SF7BW125 to SF10BW125
576 +
577 +904.7 - SF7BW125 to SF10BW125
578 +
579 +904.9 - SF7BW125 to SF10BW125
580 +
581 +905.1 - SF7BW125 to SF10BW125
582 +
583 +905.3 - SF7BW125 to SF10BW125
584 +
585 +
586 +(% style="color:blue" %)**Downlink:**
587 +
588 +923.3 - SF7BW500 to SF12BW500
589 +
590 +923.9 - SF7BW500 to SF12BW500
591 +
592 +924.5 - SF7BW500 to SF12BW500
593 +
594 +925.1 - SF7BW500 to SF12BW500
595 +
596 +925.7 - SF7BW500 to SF12BW500
597 +
598 +926.3 - SF7BW500 to SF12BW500
599 +
600 +926.9 - SF7BW500 to SF12BW500
601 +
602 +927.5 - SF7BW500 to SF12BW500
603 +
604 +923.3 - SF12BW500(RX2 downlink only)
605 +
606 +
607 +
536 536  )))
537 -* (((
538 -[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
609 +
610 +=== 2.6.3  CN470-510 (CN470) ===
611 +
612 +(((
613 +Used in China, Default use CHE=1
539 539  )))
540 -* (((
541 -[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
615 +
616 +(((
617 +(% style="color:blue" %)**Uplink:**
542 542  )))
543 543  
544 - [[image:image-20220615102527-16.png]]
620 +(((
621 +486.3 - SF7BW125 to SF12BW125
622 +)))
545 545  
624 +(((
625 +486.5 - SF7BW125 to SF12BW125
626 +)))
546 546  
628 +(((
629 +486.7 - SF7BW125 to SF12BW125
630 +)))
547 547  
548 -== 2.8.2  Battery Note ==
632 +(((
633 +486.9 - SF7BW125 to SF12BW125
634 +)))
549 549  
550 -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.
636 +(((
637 +487.1 - SF7BW125 to SF12BW125
638 +)))
551 551  
640 +(((
641 +487.3 - SF7BW125 to SF12BW125
642 +)))
552 552  
644 +(((
645 +487.5 - SF7BW125 to SF12BW125
646 +)))
553 553  
554 -=== 2.8.3  Replace the battery ===
648 +(((
649 +487.7 - SF7BW125 to SF12BW125
650 +)))
555 555  
556 556  (((
557 -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.
653 +
558 558  )))
559 559  
560 560  (((
657 +(% style="color:blue" %)**Downlink:**
658 +)))
659 +
660 +(((
661 +506.7 - SF7BW125 to SF12BW125
662 +)))
663 +
664 +(((
665 +506.9 - SF7BW125 to SF12BW125
666 +)))
667 +
668 +(((
669 +507.1 - SF7BW125 to SF12BW125
670 +)))
671 +
672 +(((
673 +507.3 - SF7BW125 to SF12BW125
674 +)))
675 +
676 +(((
677 +507.5 - SF7BW125 to SF12BW125
678 +)))
679 +
680 +(((
681 +507.7 - SF7BW125 to SF12BW125
682 +)))
683 +
684 +(((
685 +507.9 - SF7BW125 to SF12BW125
686 +)))
687 +
688 +(((
689 +508.1 - SF7BW125 to SF12BW125
690 +)))
691 +
692 +(((
693 +505.3 - SF12BW125 (RX2 downlink only)
694 +)))
695 +
696 +
697 +
698 +=== 2.6.4  AU915-928(AU915) ===
699 +
700 +(((
701 +Default use CHE=2
702 +
703 +(% style="color:blue" %)**Uplink:**
704 +
705 +916.8 - SF7BW125 to SF12BW125
706 +
707 +917.0 - SF7BW125 to SF12BW125
708 +
709 +917.2 - SF7BW125 to SF12BW125
710 +
711 +917.4 - SF7BW125 to SF12BW125
712 +
713 +917.6 - SF7BW125 to SF12BW125
714 +
715 +917.8 - SF7BW125 to SF12BW125
716 +
717 +918.0 - SF7BW125 to SF12BW125
718 +
719 +918.2 - SF7BW125 to SF12BW125
720 +
721 +
722 +(% style="color:blue" %)**Downlink:**
723 +
724 +923.3 - SF7BW500 to SF12BW500
725 +
726 +923.9 - SF7BW500 to SF12BW500
727 +
728 +924.5 - SF7BW500 to SF12BW500
729 +
730 +925.1 - SF7BW500 to SF12BW500
731 +
732 +925.7 - SF7BW500 to SF12BW500
733 +
734 +926.3 - SF7BW500 to SF12BW500
735 +
736 +926.9 - SF7BW500 to SF12BW500
737 +
738 +927.5 - SF7BW500 to SF12BW500
739 +
740 +923.3 - SF12BW500(RX2 downlink only)
741 +
742 +
561 561  
562 562  )))
563 563  
746 +=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
747 +
564 564  (((
565 -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)
749 +(% style="color:blue" %)**Default Uplink channel:**
566 566  )))
567 567  
752 +(((
753 +923.2 - SF7BW125 to SF10BW125
754 +)))
568 568  
756 +(((
757 +923.4 - SF7BW125 to SF10BW125
758 +)))
569 569  
570 -== 2.8.4  Battery Life Analyze ==
760 +(((
761 +
762 +)))
571 571  
572 -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:
764 +(((
765 +(% style="color:blue" %)**Additional Uplink Channel**:
766 +)))
573 573  
574 -[[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]]
768 +(((
769 +(OTAA mode, channel added by JoinAccept message)
770 +)))
575 575  
772 +(((
773 +
774 +)))
576 576  
776 +(((
777 +(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
778 +)))
577 577  
578 -= 3.  Using the AT Commands =
780 +(((
781 +922.2 - SF7BW125 to SF10BW125
782 +)))
579 579  
580 580  (((
785 +922.4 - SF7BW125 to SF10BW125
786 +)))
787 +
581 581  (((
789 +922.6 - SF7BW125 to SF10BW125
790 +)))
791 +
792 +(((
793 +922.8 - SF7BW125 to SF10BW125
794 +)))
795 +
796 +(((
797 +923.0 - SF7BW125 to SF10BW125
798 +)))
799 +
800 +(((
801 +922.0 - SF7BW125 to SF10BW125
802 +)))
803 +
804 +(((
582 582  
583 583  )))
807 +
808 +(((
809 +(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
584 584  )))
585 585  
586 -== 3.1  Access AT Commands ==
812 +(((
813 +923.6 - SF7BW125 to SF10BW125
814 +)))
587 587  
588 -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.
816 +(((
817 +923.8 - SF7BW125 to SF10BW125
818 +)))
589 589  
820 +(((
821 +924.0 - SF7BW125 to SF10BW125
822 +)))
590 590  
591 -[[image:image-20220610172924-4.png||height="483" width="988"]]
824 +(((
825 +924.2 - SF7BW125 to SF10BW125
826 +)))
592 592  
828 +(((
829 +924.4 - SF7BW125 to SF10BW125
830 +)))
593 593  
594 -Or if you have below board, use below connection:
832 +(((
833 +924.6 - SF7BW125 to SF10BW125
834 +)))
595 595  
836 +(((
837 +
838 +)))
596 596  
597 -[[image:image-20220610172924-5.png]]
840 +(((
841 +(% style="color:blue" %)**Downlink:**
842 +)))
598 598  
844 +(((
845 +Uplink channels 1-8 (RX1)
846 +)))
599 599  
600 600  (((
601 -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:
849 +923.2 - SF10BW125 (RX2)
602 602  )))
603 603  
604 604  
605 - [[image:image-20220610172924-6.png||height="601" width="860"]]
606 606  
607 -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/]].
854 +=== 2.6.6  KR920-923 (KR920) ===
608 608  
856 +(((
857 +(% style="color:blue" %)**Default channel:**
858 +)))
609 609  
610 -AT+<CMD>?  :  Help on <CMD>
860 +(((
861 +922.1 - SF7BW125 to SF12BW125
862 +)))
611 611  
612 -AT+<CMD>  :  Run <CMD>
864 +(((
865 +922.3 - SF7BW125 to SF12BW125
866 +)))
613 613  
614 -AT+<CMD>=<value>  :  Set the value
868 +(((
869 +922.5 - SF7BW125 to SF12BW125
870 +)))
615 615  
616 -AT+<CMD>=?  :  Get the value
872 +(((
873 +
874 +)))
617 617  
876 +(((
877 +(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
878 +)))
618 618  
619 -(% style="color:#037691" %)** General Commands :**     
880 +(((
881 +922.1 - SF7BW125 to SF12BW125
882 +)))
620 620  
621 -AT  :  Attention       
884 +(((
885 +922.3 - SF7BW125 to SF12BW125
886 +)))
622 622  
623 -AT?  :  Short Help     
888 +(((
889 +922.5 - SF7BW125 to SF12BW125
890 +)))
624 624  
625 -ATZ :  MCU Reset    
892 +(((
893 +922.7 - SF7BW125 to SF12BW125
894 +)))
626 626  
627 -AT+TDC :  Application Data Transmission Interval 
896 +(((
897 +922.9 - SF7BW125 to SF12BW125
898 +)))
628 628  
900 +(((
901 +923.1 - SF7BW125 to SF12BW125
902 +)))
629 629  
630 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
904 +(((
905 +923.3 - SF7BW125 to SF12BW125
906 +)))
631 631  
632 -AT+APPEUI  :  Application EUI      
908 +(((
909 +
910 +)))
633 633  
634 -AT+APPKEY  :  Application Key     
912 +(((
913 +(% style="color:blue" %)**Downlink:**
914 +)))
635 635  
636 -AT+APPSKEY  :  Application Session Key
916 +(((
917 +Uplink channels 1-7(RX1)
918 +)))
637 637  
638 -AT+DADDR :  Device Address     
920 +(((
921 +921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
922 +)))
639 639  
640 -AT+DEUI :  Device EUI     
641 641  
642 -AT+NWKID  :  Network ID (You can enter this command change only after successful network connection) 
643 643  
644 -AT+NWKSKEY  : Network Session Key Joining and sending date on LoRa network  
926 +=== 2.6.7  IN865-867 (IN865) ===
645 645  
646 -AT+CFM :  Confirm Mode       
928 +(((
929 +(% style="color:blue" %)**Uplink:**
930 +)))
647 647  
648 -AT+CFS :  Confirm Status       
932 +(((
933 +865.0625 - SF7BW125 to SF12BW125
934 +)))
649 649  
650 -AT+JOIN  :  Join LoRa? Network       
936 +(((
937 +865.4025 - SF7BW125 to SF12BW125
938 +)))
651 651  
652 -AT+NJM  :  LoRa? Network Join Mode    
940 +(((
941 +865.9850 - SF7BW125 to SF12BW125
942 +)))
653 653  
654 -AT+NJS  :  LoRa? Network Join Status    
944 +(((
945 +
946 +)))
655 655  
656 -AT+RECV  :  Print Last Received Data in Raw Format
948 +(((
949 +(% style="color:blue" %)**Downlink:**
950 +)))
657 657  
658 -AT+RECVB :  Print Last Received Data in Binary Format      
952 +(((
953 +Uplink channels 1-3 (RX1)
954 +)))
659 659  
660 -AT+SEND  :  Send Text Data      
956 +(((
957 +866.550 - SF10BW125 (RX2)
958 +)))
661 661  
662 -AT+SENB  :  Send Hexadecimal Data
663 663  
664 664  
665 -(% style="color:#037691" %)** LoRa Network Management :**
962 +== 2.7  LED Indicator ==
666 666  
667 -AT+ADR  :  Adaptive Rate
964 +The LDDS75 has an internal LED which is to show the status of different state.
668 668  
669 -AT+CLASS  :  LoRa Class(Currently only support class A
670 670  
671 -AT+DCS  :  Duty Cycle Setting 
967 +* Blink once when device power on.
968 +* The device detects the sensor and flashes 5 times.
969 +* Solid ON for 5 seconds once device successful Join the network.
970 +* Blink once when device transmit a packet.
672 672  
673 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
972 +== 2.8  ​Firmware Change Log ==
674 674  
675 -AT+FCD  :  Frame Counter Downlink       
676 676  
677 -AT+FCU  :  Frame Counter Uplink   
975 +(((
976 +**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/]]
977 +)))
678 678  
679 -AT+JN1DL  :  Join Accept Delay1
979 +(((
980 +
981 +)))
680 680  
681 -AT+JN2DL  :  Join Accept Delay2
983 +(((
984 +**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
985 +)))
682 682  
683 -AT+PNM  :  Public Network Mode   
684 684  
685 -AT+RX1DL  :  Receive Delay1      
686 686  
687 -AT+RX2DL  :  Receive Delay2      
989 +== 2.9  Mechanical ==
688 688  
689 -AT+RX2DR  :  Rx2 Window Data Rate 
690 690  
691 -AT+RX2FQ  :  Rx2 Window Frequency
992 +[[image:image-20220610172003-1.png]]
692 692  
693 -AT+TXP  :  Transmit Power
694 694  
995 +[[image:image-20220610172003-2.png]]
695 695  
696 -(% style="color:#037691" %)** Information :**
697 697  
698 -AT+RSSI  :  RSSI of the Last Received Packet   
699 699  
700 -AT+SNR  :  SNR of the Last Received Packet   
999 +== 2.10  Battery Analysis ==
701 701  
702 -AT+VER  :  Image Version and Frequency Band       
1001 +=== 2.10.1  Battery Type ===
703 703  
704 -AT+FDR  :  Factory Data Reset
1003 +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.
705 705  
706 -AT+PORT  :  Application Port    
707 707  
708 -AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
1006 +The battery related documents as below:
709 709  
710 - AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
1008 +* (((
1009 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
1010 +)))
1011 +* (((
1012 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
1013 +)))
1014 +* (((
1015 +[[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]]
1016 +)))
711 711  
1018 + [[image:image-20220610172400-3.png]]
712 712  
713 713  
714 -== 3.2  Set Interrupt Mode ==
715 715  
1022 +=== 2.10.2  Replace the battery ===
1023 +
1024 +(((
1025 +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.
1026 +)))
1027 +
1028 +(((
1029 +
1030 +)))
1031 +
1032 +(((
1033 +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)
1034 +)))
1035 +
1036 +
1037 +
1038 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
1039 +
1040 +(((
1041 +(((
1042 +Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
1043 +)))
1044 +)))
1045 +
1046 +* (((
1047 +(((
1048 +AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
1049 +)))
1050 +)))
1051 +* (((
1052 +(((
1053 +LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1054 +)))
1055 +)))
1056 +
1057 +(((
1058 +(((
1059 +
1060 +)))
1061 +
1062 +(((
1063 +There are two kinds of commands to configure LDDS75, they are:
1064 +)))
1065 +)))
1066 +
1067 +* (((
1068 +(((
1069 +(% style="color:#4f81bd" %)** General Commands**.
1070 +)))
1071 +)))
1072 +
1073 +(((
1074 +(((
1075 +These commands are to configure:
1076 +)))
1077 +)))
1078 +
1079 +* (((
1080 +(((
1081 +General system settings like: uplink interval.
1082 +)))
1083 +)))
1084 +* (((
1085 +(((
1086 +LoRaWAN protocol & radio related command.
1087 +)))
1088 +)))
1089 +
1090 +(((
1091 +(((
1092 +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]]
1093 +)))
1094 +)))
1095 +
1096 +(((
1097 +(((
1098 +
1099 +)))
1100 +)))
1101 +
1102 +* (((
1103 +(((
1104 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
1105 +)))
1106 +)))
1107 +
1108 +(((
1109 +(((
1110 +These commands only valid for LDDS75, as below:
1111 +)))
1112 +)))
1113 +
1114 +
1115 +
1116 +== 3.1  Access AT Commands ==
1117 +
1118 +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.
1119 +
1120 +[[image:image-20220610172924-4.png||height="483" width="988"]]
1121 +
1122 +
1123 +Or if you have below board, use below connection:
1124 +
1125 +
1126 +[[image:image-20220610172924-5.png]]
1127 +
1128 +
1129 +(((
1130 +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:
1131 +)))
1132 +
1133 +
1134 + [[image:image-20220610172924-6.png||height="601" width="860"]]
1135 +
1136 +
1137 +
1138 +== 3.2  Set Transmit Interval Time ==
1139 +
1140 +Feature: Change LoRaWAN End Node Transmit Interval.
1141 +
1142 +(% style="color:#037691" %)**AT Command: AT+TDC**
1143 +
1144 +[[image:image-20220610173409-7.png]]
1145 +
1146 +
1147 +(((
1148 +(% style="color:#037691" %)**Downlink Command: 0x01**
1149 +)))
1150 +
1151 +(((
1152 +(((
1153 +Format: Command Code (0x01) followed by 3 bytes time value.
1154 +
1155 +(((
1156 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1157 +)))
1158 +
1159 +* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1160 +* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1161 +)))
1162 +)))
1163 +
1164 +
1165 +
1166 +
1167 +
1168 +== 3.3  Set Interrupt Mode ==
1169 +
716 716  Feature, Set Interrupt mode for GPIO_EXIT.
717 717  
718 718  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
... ... @@ -731,23 +731,27 @@
731 731  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
732 732  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
733 733  
734 -
735 -
736 736  = 4.  FAQ =
737 737  
738 -== 4.1  What is the frequency plan for LDDS20? ==
1190 +== 4.1  What is the frequency plan for LDDS75? ==
739 739  
740 -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"]]
1192 +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"]]
741 741  
742 742  
743 743  
744 744  == 4.2  How to change the LoRa Frequency Bands/Region ==
745 745  
746 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.7A0200BFirmwareChangeLog"]].
1198 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
747 747  When downloading the images, choose the required image file for download. ​
748 748  
749 749  
750 750  
1203 +== 4.3  Can I use LDDS75 in condensation environment? ==
1204 +
1205 +LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1206 +
1207 +
1208 +
751 751  = 5.  Trouble Shooting =
752 752  
753 753  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
... ... @@ -767,7 +767,7 @@
767 767  = 6.  Order Info =
768 768  
769 769  
770 -Part Number **:** (% style="color:blue" %)**LDDS20-XX**
1228 +Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
771 771  
772 772  
773 773  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
... ... @@ -781,20 +781,18 @@
781 781  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
782 782  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
783 783  
1242 +(% style="color:blue" %)**YY**(%%): Battery Option
784 784  
1244 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1245 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1246 +
785 785  = 7. ​ Packing Info =
786 786  
787 787  
788 788  **Package Includes**:
789 789  
790 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
1252 +* LDDS75 LoRaWAN Distance Detection Sensor x 1
791 791  
792 -
793 -(% style="color:red" %)**Note:**
794 -
795 -(% 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.
796 -
797 -
798 798  **Dimension and weight**:
799 799  
800 800  * Device Size: cm
... ... @@ -802,7 +802,6 @@
802 802  * Package Size / pcs : cm
803 803  * Weight / pcs : g
804 804  
805 -
806 806  = 8.  ​Support =
807 807  
808 808  * 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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