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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 172.6
edited by Xiaoling
on 2022/06/15 09:58
Change comment: There is no comment for this version
To version 173.6
edited by Xiaoling
on 2022/06/15 10:15
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -100,8 +100,6 @@
100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 -
104 -
105 105  == 1.3  Suitable Container & Liquid ==
106 106  
107 107  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -111,8 +111,6 @@
111 111  ** Pure non metal material: <10 mm
112 112  * Pure liquid without irregular deposition.
113 113  
114 -
115 -
116 116  == 1.4  Mechanical ==
117 117  
118 118  [[image:image-20220615090910-1.png]]
... ... @@ -202,9 +202,6 @@
202 202  * Smart liquid control solution.
203 203  * Smart liquefied gas solution.
204 204  
205 -
206 -
207 -
208 208  == 1.7  Precautions ==
209 209  
210 210  * 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.
... ... @@ -211,9 +211,6 @@
211 211  * 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.
212 212  * 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.
213 213  
214 -
215 -
216 -
217 217  == 1.8  Pin mapping and power on ==
218 218  
219 219  
... ... @@ -227,7 +227,7 @@
227 227  == 2.1  How it works ==
228 228  
229 229  (((
230 -The LDDS20 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value.
220 +The LDDS20 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS20. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value.
231 231  )))
232 232  
233 233  (((
... ... @@ -321,7 +321,7 @@
321 321  
322 322  (((
323 323  (((
324 -LDDS20 will uplink payload via LoRaWAN with below payload format:
314 +LDDS20 will uplink payload via LoRaWAN with below payload format: 
325 325  
326 326  Uplink payload includes in total 8 bytes.
327 327  Payload for firmware version v1.1.4. . Before v1.1.3, there is only 5 bytes: BAT and Distance(Please check manual v1.2.0 if you have 5 bytes payload).
... ... @@ -369,16 +369,12 @@
369 369  For example, if the data you get from the register is __0x06 0x05__, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0605(H) = 1541 (D) = 1541 mm.**
370 370  )))
371 371  
362 +* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
363 +* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
372 372  
373 -* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
374 -* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
375 -
376 -
377 -
378 -
379 379  === 2.3.3  Interrupt Pin ===
380 380  
381 -This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up.
367 +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.
382 382  
383 383  **Example:**
384 384  
... ... @@ -424,533 +424,91 @@
424 424  The payload decoder function for TTN V3 is here:
425 425  
426 426  (((
427 -LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
413 +LDDS20 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS20/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
428 428  )))
429 429  
430 430  
431 431  
432 -== 2.4  Uplink Interval ==
418 +== 2.4  Downlink Payload ==
433 433  
434 -The LDDS75 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
420 +By default, LDDS20 prints the downlink payload to console port.
435 435  
422 +[[image:image-20220615100930-15.png]]
436 436  
437 437  
438 -== 2.5  ​Show Data in DataCake IoT Server ==
425 +**Examples:**
439 439  
440 -(((
441 -[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
442 -)))
443 443  
444 -(((
445 -
446 -)))
428 +* (% style="color:blue" %)**Set TDC**
447 447  
448 -(((
449 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
450 -)))
430 +If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
451 451  
452 -(((
453 -(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
454 -)))
432 +Payload:    01 00 00 1E    TDC=30S
455 455  
434 +Payload:    01 00 00 3C    TDC=60S
456 456  
457 -[[image:1654592790040-760.png]]
458 458  
437 +* (% style="color:blue" %)**Reset**
459 459  
460 -[[image:1654592800389-571.png]]
439 +If payload = 0x04FF, it will reset the LDDS20
461 461  
462 462  
463 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
442 +* (% style="color:blue" %)**CFM**
464 464  
465 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
444 +Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
466 466  
467 -[[image:1654851029373-510.png]]
468 468  
469 469  
470 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
448 +== 2.5  ​Show Data in DataCake IoT Server ==
471 471  
472 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
473 -
474 -
475 -
476 -== 2.6  Frequency Plans ==
477 -
478 478  (((
479 -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.
451 +[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
480 480  )))
481 481  
482 -
483 -
484 -=== 2.6.1  EU863-870 (EU868) ===
485 -
486 486  (((
487 -(% style="color:blue" %)**Uplink:**
488 -)))
489 -
490 -(((
491 -868.1 - SF7BW125 to SF12BW125
492 -)))
493 -
494 -(((
495 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
496 -)))
497 -
498 -(((
499 -868.5 - SF7BW125 to SF12BW125
500 -)))
501 -
502 -(((
503 -867.1 - SF7BW125 to SF12BW125
504 -)))
505 -
506 -(((
507 -867.3 - SF7BW125 to SF12BW125
508 -)))
509 -
510 -(((
511 -867.5 - SF7BW125 to SF12BW125
512 -)))
513 -
514 -(((
515 -867.7 - SF7BW125 to SF12BW125
516 -)))
517 -
518 -(((
519 -867.9 - SF7BW125 to SF12BW125
520 -)))
521 -
522 -(((
523 -868.8 - FSK
524 -)))
525 -
526 -(((
527 527  
528 528  )))
529 529  
530 530  (((
531 -(% style="color:blue" %)**Downlink:**
459 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
532 532  )))
533 533  
534 534  (((
535 -Uplink channels 1-9 (RX1)
463 +(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
536 536  )))
537 537  
538 -(((
539 -869.525 - SF9BW125 (RX2 downlink only)
540 -)))
541 541  
467 +[[image:1654592790040-760.png]]
542 542  
543 543  
544 -=== 2.6.2  US902-928(US915) ===
470 +[[image:1654592800389-571.png]]
545 545  
546 -(((
547 -Used in USA, Canada and South America. Default use CHE=2
548 548  
549 -(% style="color:blue" %)**Uplink:**
473 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
550 550  
551 -903.9 - SF7BW125 to SF10BW125
475 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
552 552  
553 -904.1 - SF7BW125 to SF10BW125
477 +[[image:1654851029373-510.png]]
554 554  
555 -904.3 - SF7BW125 to SF10BW125
556 556  
557 -904.5 - SF7BW125 to SF10BW125
480 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
558 558  
559 -904.7 - SF7BW125 to SF10BW125
482 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
560 560  
561 -904.9 - SF7BW125 to SF10BW125
562 562  
563 -905.1 - SF7BW125 to SF10BW125
564 564  
565 -905.3 - SF7BW125 to SF10BW125
486 +== 2.6  LED Indicator ==
566 566  
488 +The LDDS20 has an internal LED which is to show the status of different state.
567 567  
568 -(% style="color:blue" %)**Downlink:**
569 569  
570 -923.3 - SF7BW500 to SF12BW500
571 -
572 -923.9 - SF7BW500 to SF12BW500
573 -
574 -924.5 - SF7BW500 to SF12BW500
575 -
576 -925.1 - SF7BW500 to SF12BW500
577 -
578 -925.7 - SF7BW500 to SF12BW500
579 -
580 -926.3 - SF7BW500 to SF12BW500
581 -
582 -926.9 - SF7BW500 to SF12BW500
583 -
584 -927.5 - SF7BW500 to SF12BW500
585 -
586 -923.3 - SF12BW500(RX2 downlink only)
587 -
588 -
589 -
590 -)))
591 -
592 -=== 2.6.3  CN470-510 (CN470) ===
593 -
594 -(((
595 -Used in China, Default use CHE=1
596 -)))
597 -
598 -(((
599 -(% style="color:blue" %)**Uplink:**
600 -)))
601 -
602 -(((
603 -486.3 - SF7BW125 to SF12BW125
604 -)))
605 -
606 -(((
607 -486.5 - SF7BW125 to SF12BW125
608 -)))
609 -
610 -(((
611 -486.7 - SF7BW125 to SF12BW125
612 -)))
613 -
614 -(((
615 -486.9 - SF7BW125 to SF12BW125
616 -)))
617 -
618 -(((
619 -487.1 - SF7BW125 to SF12BW125
620 -)))
621 -
622 -(((
623 -487.3 - SF7BW125 to SF12BW125
624 -)))
625 -
626 -(((
627 -487.5 - SF7BW125 to SF12BW125
628 -)))
629 -
630 -(((
631 -487.7 - SF7BW125 to SF12BW125
632 -)))
633 -
634 -(((
635 -
636 -)))
637 -
638 -(((
639 -(% style="color:blue" %)**Downlink:**
640 -)))
641 -
642 -(((
643 -506.7 - SF7BW125 to SF12BW125
644 -)))
645 -
646 -(((
647 -506.9 - SF7BW125 to SF12BW125
648 -)))
649 -
650 -(((
651 -507.1 - SF7BW125 to SF12BW125
652 -)))
653 -
654 -(((
655 -507.3 - SF7BW125 to SF12BW125
656 -)))
657 -
658 -(((
659 -507.5 - SF7BW125 to SF12BW125
660 -)))
661 -
662 -(((
663 -507.7 - SF7BW125 to SF12BW125
664 -)))
665 -
666 -(((
667 -507.9 - SF7BW125 to SF12BW125
668 -)))
669 -
670 -(((
671 -508.1 - SF7BW125 to SF12BW125
672 -)))
673 -
674 -(((
675 -505.3 - SF12BW125 (RX2 downlink only)
676 -)))
677 -
678 -
679 -
680 -=== 2.6.4  AU915-928(AU915) ===
681 -
682 -(((
683 -Default use CHE=2
684 -
685 -(% style="color:blue" %)**Uplink:**
686 -
687 -916.8 - SF7BW125 to SF12BW125
688 -
689 -917.0 - SF7BW125 to SF12BW125
690 -
691 -917.2 - SF7BW125 to SF12BW125
692 -
693 -917.4 - SF7BW125 to SF12BW125
694 -
695 -917.6 - SF7BW125 to SF12BW125
696 -
697 -917.8 - SF7BW125 to SF12BW125
698 -
699 -918.0 - SF7BW125 to SF12BW125
700 -
701 -918.2 - SF7BW125 to SF12BW125
702 -
703 -
704 -(% style="color:blue" %)**Downlink:**
705 -
706 -923.3 - SF7BW500 to SF12BW500
707 -
708 -923.9 - SF7BW500 to SF12BW500
709 -
710 -924.5 - SF7BW500 to SF12BW500
711 -
712 -925.1 - SF7BW500 to SF12BW500
713 -
714 -925.7 - SF7BW500 to SF12BW500
715 -
716 -926.3 - SF7BW500 to SF12BW500
717 -
718 -926.9 - SF7BW500 to SF12BW500
719 -
720 -927.5 - SF7BW500 to SF12BW500
721 -
722 -923.3 - SF12BW500(RX2 downlink only)
723 -
724 -
725 -
726 -)))
727 -
728 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
729 -
730 -(((
731 -(% style="color:blue" %)**Default Uplink channel:**
732 -)))
733 -
734 -(((
735 -923.2 - SF7BW125 to SF10BW125
736 -)))
737 -
738 -(((
739 -923.4 - SF7BW125 to SF10BW125
740 -)))
741 -
742 -(((
743 -
744 -)))
745 -
746 -(((
747 -(% style="color:blue" %)**Additional Uplink Channel**:
748 -)))
749 -
750 -(((
751 -(OTAA mode, channel added by JoinAccept message)
752 -)))
753 -
754 -(((
755 -
756 -)))
757 -
758 -(((
759 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
760 -)))
761 -
762 -(((
763 -922.2 - SF7BW125 to SF10BW125
764 -)))
765 -
766 -(((
767 -922.4 - SF7BW125 to SF10BW125
768 -)))
769 -
770 -(((
771 -922.6 - SF7BW125 to SF10BW125
772 -)))
773 -
774 -(((
775 -922.8 - SF7BW125 to SF10BW125
776 -)))
777 -
778 -(((
779 -923.0 - SF7BW125 to SF10BW125
780 -)))
781 -
782 -(((
783 -922.0 - SF7BW125 to SF10BW125
784 -)))
785 -
786 -(((
787 -
788 -)))
789 -
790 -(((
791 -(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
792 -)))
793 -
794 -(((
795 -923.6 - SF7BW125 to SF10BW125
796 -)))
797 -
798 -(((
799 -923.8 - SF7BW125 to SF10BW125
800 -)))
801 -
802 -(((
803 -924.0 - SF7BW125 to SF10BW125
804 -)))
805 -
806 -(((
807 -924.2 - SF7BW125 to SF10BW125
808 -)))
809 -
810 -(((
811 -924.4 - SF7BW125 to SF10BW125
812 -)))
813 -
814 -(((
815 -924.6 - SF7BW125 to SF10BW125
816 -)))
817 -
818 -(((
819 -
820 -)))
821 -
822 -(((
823 -(% style="color:blue" %)**Downlink:**
824 -)))
825 -
826 -(((
827 -Uplink channels 1-8 (RX1)
828 -)))
829 -
830 -(((
831 -923.2 - SF10BW125 (RX2)
832 -)))
833 -
834 -
835 -
836 -=== 2.6.6  KR920-923 (KR920) ===
837 -
838 -(((
839 -(% style="color:blue" %)**Default channel:**
840 -)))
841 -
842 -(((
843 -922.1 - SF7BW125 to SF12BW125
844 -)))
845 -
846 -(((
847 -922.3 - SF7BW125 to SF12BW125
848 -)))
849 -
850 -(((
851 -922.5 - SF7BW125 to SF12BW125
852 -)))
853 -
854 -(((
855 -
856 -)))
857 -
858 -(((
859 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
860 -)))
861 -
862 -(((
863 -922.1 - SF7BW125 to SF12BW125
864 -)))
865 -
866 -(((
867 -922.3 - SF7BW125 to SF12BW125
868 -)))
869 -
870 -(((
871 -922.5 - SF7BW125 to SF12BW125
872 -)))
873 -
874 -(((
875 -922.7 - SF7BW125 to SF12BW125
876 -)))
877 -
878 -(((
879 -922.9 - SF7BW125 to SF12BW125
880 -)))
881 -
882 -(((
883 -923.1 - SF7BW125 to SF12BW125
884 -)))
885 -
886 -(((
887 -923.3 - SF7BW125 to SF12BW125
888 -)))
889 -
890 -(((
891 -
892 -)))
893 -
894 -(((
895 -(% style="color:blue" %)**Downlink:**
896 -)))
897 -
898 -(((
899 -Uplink channels 1-7(RX1)
900 -)))
901 -
902 -(((
903 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
904 -)))
905 -
906 -
907 -
908 -=== 2.6.7  IN865-867 (IN865) ===
909 -
910 -(((
911 -(% style="color:blue" %)**Uplink:**
912 -)))
913 -
914 -(((
915 -865.0625 - SF7BW125 to SF12BW125
916 -)))
917 -
918 -(((
919 -865.4025 - SF7BW125 to SF12BW125
920 -)))
921 -
922 -(((
923 -865.9850 - SF7BW125 to SF12BW125
924 -)))
925 -
926 -(((
927 -
928 -)))
929 -
930 -(((
931 -(% style="color:blue" %)**Downlink:**
932 -)))
933 -
934 -(((
935 -Uplink channels 1-3 (RX1)
936 -)))
937 -
938 -(((
939 -866.550 - SF10BW125 (RX2)
940 -)))
941 -
942 -
943 -
944 -== 2.7  LED Indicator ==
945 -
946 -The LDDS75 has an internal LED which is to show the status of different state.
947 -
948 -
949 949  * Blink once when device power on.
950 950  * The device detects the sensor and flashes 5 times.
951 951  * Solid ON for 5 seconds once device successful Join the network.
952 952  * Blink once when device transmit a packet.
953 953  
496 +
497 +
954 954  == 2.8  ​Firmware Change Log ==
955 955  
956 956  
image-20220615100930-15.png
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