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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 172.4
edited by Xiaoling
on 2022/06/15 09:52
Change comment: There is no comment for this version
To version 173.5
edited by Xiaoling
on 2022/06/15 10:15
Change comment: There is no comment for this version

Summary

Details

Page properties
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).
... ... @@ -351,7 +351,7 @@
351 351  === 2.3.1  Battery Info ===
352 352  
353 353  
354 -Check the battery voltage for LDDS75.
344 +Check the battery voltage for LDDS20.
355 355  
356 356  Ex1: 0x0B45 = 2885mV
357 357  
... ... @@ -362,20 +362,19 @@
362 362  === 2.3.2  Distance ===
363 363  
364 364  (((
365 -Get the distance. Flat object range 280mm - 7500mm.
355 +Get the distance. Flat object range 20mm - 2000mm.
366 366  )))
367 367  
368 368  (((
369 -For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
359 +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 -
376 376  === 2.3.3  Interrupt Pin ===
377 377  
378 -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.
379 379  
380 380  **Example:**
381 381  
... ... @@ -421,533 +421,92 @@
421 421  The payload decoder function for TTN V3 is here:
422 422  
423 423  (((
424 -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/]]
425 425  )))
426 426  
427 427  
428 428  
429 -== 2.4  Uplink Interval ==
418 +== 2.4  Downlink Payload ==
430 430  
431 -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.
432 432  
422 +[[image:image-20220615100930-15.png]]
433 433  
434 434  
435 -== 2.5  ​Show Data in DataCake IoT Server ==
425 +**Examples:**
436 436  
437 -(((
438 -[[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:
439 -)))
440 440  
441 -(((
442 -
443 -)))
428 +* (% style="color:blue" %)**Set TDC**
444 444  
445 -(((
446 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
447 -)))
430 +If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
448 448  
449 -(((
450 -(% 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:**
451 -)))
432 +Payload:    01 00 00 1E    TDC=30S
452 452  
434 +Payload:    01 00 00 3C    TDC=60S
453 453  
454 -[[image:1654592790040-760.png]]
455 455  
437 +* (% style="color:blue" %)**Reset**
456 456  
457 -[[image:1654592800389-571.png]]
439 +If payload = 0x04FF, it will reset the LDDS20
458 458  
459 459  
460 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
442 +* (% style="color:blue" %)**CFM**
461 461  
462 -(% 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
463 463  
464 -[[image:1654851029373-510.png]]
465 465  
466 466  
467 -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 ==
468 468  
469 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
470 -
471 -
472 -
473 -== 2.6  Frequency Plans ==
474 -
475 475  (((
476 -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:
477 477  )))
478 478  
479 -
480 -
481 -=== 2.6.1  EU863-870 (EU868) ===
482 -
483 483  (((
484 -(% style="color:blue" %)**Uplink:**
485 -)))
486 -
487 -(((
488 -868.1 - SF7BW125 to SF12BW125
489 -)))
490 -
491 -(((
492 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
493 -)))
494 -
495 -(((
496 -868.5 - SF7BW125 to SF12BW125
497 -)))
498 -
499 -(((
500 -867.1 - SF7BW125 to SF12BW125
501 -)))
502 -
503 -(((
504 -867.3 - SF7BW125 to SF12BW125
505 -)))
506 -
507 -(((
508 -867.5 - SF7BW125 to SF12BW125
509 -)))
510 -
511 -(((
512 -867.7 - SF7BW125 to SF12BW125
513 -)))
514 -
515 -(((
516 -867.9 - SF7BW125 to SF12BW125
517 -)))
518 -
519 -(((
520 -868.8 - FSK
521 -)))
522 -
523 -(((
524 524  
525 525  )))
526 526  
527 527  (((
528 -(% 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.**
529 529  )))
530 530  
531 531  (((
532 -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:**
533 533  )))
534 534  
535 -(((
536 -869.525 - SF9BW125 (RX2 downlink only)
537 -)))
538 538  
467 +[[image:1654592790040-760.png]]
539 539  
540 540  
541 -=== 2.6.2  US902-928(US915) ===
470 +[[image:1654592800389-571.png]]
542 542  
543 -(((
544 -Used in USA, Canada and South America. Default use CHE=2
545 545  
546 -(% style="color:blue" %)**Uplink:**
473 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
547 547  
548 -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)(%%)**
549 549  
550 -904.1 - SF7BW125 to SF10BW125
477 +[[image:1654851029373-510.png]]
551 551  
552 -904.3 - SF7BW125 to SF10BW125
553 553  
554 -904.5 - SF7BW125 to SF10BW125
480 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
555 555  
556 -904.7 - SF7BW125 to SF10BW125
482 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
557 557  
558 -904.9 - SF7BW125 to SF10BW125
559 559  
560 -905.1 - SF7BW125 to SF10BW125
561 561  
562 -905.3 - SF7BW125 to SF10BW125
486 +== 2.6  LED Indicator ==
563 563  
488 +The LDDS20 has an internal LED which is to show the status of different state.
564 564  
565 -(% style="color:blue" %)**Downlink:**
566 566  
567 -923.3 - SF7BW500 to SF12BW500
568 -
569 -923.9 - SF7BW500 to SF12BW500
570 -
571 -924.5 - SF7BW500 to SF12BW500
572 -
573 -925.1 - SF7BW500 to SF12BW500
574 -
575 -925.7 - SF7BW500 to SF12BW500
576 -
577 -926.3 - SF7BW500 to SF12BW500
578 -
579 -926.9 - SF7BW500 to SF12BW500
580 -
581 -927.5 - SF7BW500 to SF12BW500
582 -
583 -923.3 - SF12BW500(RX2 downlink only)
584 -
585 -
586 -
587 -)))
588 -
589 -=== 2.6.3  CN470-510 (CN470) ===
590 -
591 -(((
592 -Used in China, Default use CHE=1
593 -)))
594 -
595 -(((
596 -(% style="color:blue" %)**Uplink:**
597 -)))
598 -
599 -(((
600 -486.3 - SF7BW125 to SF12BW125
601 -)))
602 -
603 -(((
604 -486.5 - SF7BW125 to SF12BW125
605 -)))
606 -
607 -(((
608 -486.7 - SF7BW125 to SF12BW125
609 -)))
610 -
611 -(((
612 -486.9 - SF7BW125 to SF12BW125
613 -)))
614 -
615 -(((
616 -487.1 - SF7BW125 to SF12BW125
617 -)))
618 -
619 -(((
620 -487.3 - SF7BW125 to SF12BW125
621 -)))
622 -
623 -(((
624 -487.5 - SF7BW125 to SF12BW125
625 -)))
626 -
627 -(((
628 -487.7 - SF7BW125 to SF12BW125
629 -)))
630 -
631 -(((
632 -
633 -)))
634 -
635 -(((
636 -(% style="color:blue" %)**Downlink:**
637 -)))
638 -
639 -(((
640 -506.7 - SF7BW125 to SF12BW125
641 -)))
642 -
643 -(((
644 -506.9 - SF7BW125 to SF12BW125
645 -)))
646 -
647 -(((
648 -507.1 - SF7BW125 to SF12BW125
649 -)))
650 -
651 -(((
652 -507.3 - SF7BW125 to SF12BW125
653 -)))
654 -
655 -(((
656 -507.5 - SF7BW125 to SF12BW125
657 -)))
658 -
659 -(((
660 -507.7 - SF7BW125 to SF12BW125
661 -)))
662 -
663 -(((
664 -507.9 - SF7BW125 to SF12BW125
665 -)))
666 -
667 -(((
668 -508.1 - SF7BW125 to SF12BW125
669 -)))
670 -
671 -(((
672 -505.3 - SF12BW125 (RX2 downlink only)
673 -)))
674 -
675 -
676 -
677 -=== 2.6.4  AU915-928(AU915) ===
678 -
679 -(((
680 -Default use CHE=2
681 -
682 -(% style="color:blue" %)**Uplink:**
683 -
684 -916.8 - SF7BW125 to SF12BW125
685 -
686 -917.0 - SF7BW125 to SF12BW125
687 -
688 -917.2 - SF7BW125 to SF12BW125
689 -
690 -917.4 - SF7BW125 to SF12BW125
691 -
692 -917.6 - SF7BW125 to SF12BW125
693 -
694 -917.8 - SF7BW125 to SF12BW125
695 -
696 -918.0 - SF7BW125 to SF12BW125
697 -
698 -918.2 - SF7BW125 to SF12BW125
699 -
700 -
701 -(% style="color:blue" %)**Downlink:**
702 -
703 -923.3 - SF7BW500 to SF12BW500
704 -
705 -923.9 - SF7BW500 to SF12BW500
706 -
707 -924.5 - SF7BW500 to SF12BW500
708 -
709 -925.1 - SF7BW500 to SF12BW500
710 -
711 -925.7 - SF7BW500 to SF12BW500
712 -
713 -926.3 - SF7BW500 to SF12BW500
714 -
715 -926.9 - SF7BW500 to SF12BW500
716 -
717 -927.5 - SF7BW500 to SF12BW500
718 -
719 -923.3 - SF12BW500(RX2 downlink only)
720 -
721 -
722 -
723 -)))
724 -
725 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
726 -
727 -(((
728 -(% style="color:blue" %)**Default Uplink channel:**
729 -)))
730 -
731 -(((
732 -923.2 - SF7BW125 to SF10BW125
733 -)))
734 -
735 -(((
736 -923.4 - SF7BW125 to SF10BW125
737 -)))
738 -
739 -(((
740 -
741 -)))
742 -
743 -(((
744 -(% style="color:blue" %)**Additional Uplink Channel**:
745 -)))
746 -
747 -(((
748 -(OTAA mode, channel added by JoinAccept message)
749 -)))
750 -
751 -(((
752 -
753 -)))
754 -
755 -(((
756 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
757 -)))
758 -
759 -(((
760 -922.2 - SF7BW125 to SF10BW125
761 -)))
762 -
763 -(((
764 -922.4 - SF7BW125 to SF10BW125
765 -)))
766 -
767 -(((
768 -922.6 - SF7BW125 to SF10BW125
769 -)))
770 -
771 -(((
772 -922.8 - SF7BW125 to SF10BW125
773 -)))
774 -
775 -(((
776 -923.0 - SF7BW125 to SF10BW125
777 -)))
778 -
779 -(((
780 -922.0 - SF7BW125 to SF10BW125
781 -)))
782 -
783 -(((
784 -
785 -)))
786 -
787 -(((
788 -(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
789 -)))
790 -
791 -(((
792 -923.6 - SF7BW125 to SF10BW125
793 -)))
794 -
795 -(((
796 -923.8 - SF7BW125 to SF10BW125
797 -)))
798 -
799 -(((
800 -924.0 - SF7BW125 to SF10BW125
801 -)))
802 -
803 -(((
804 -924.2 - SF7BW125 to SF10BW125
805 -)))
806 -
807 -(((
808 -924.4 - SF7BW125 to SF10BW125
809 -)))
810 -
811 -(((
812 -924.6 - SF7BW125 to SF10BW125
813 -)))
814 -
815 -(((
816 -
817 -)))
818 -
819 -(((
820 -(% style="color:blue" %)**Downlink:**
821 -)))
822 -
823 -(((
824 -Uplink channels 1-8 (RX1)
825 -)))
826 -
827 -(((
828 -923.2 - SF10BW125 (RX2)
829 -)))
830 -
831 -
832 -
833 -=== 2.6.6  KR920-923 (KR920) ===
834 -
835 -(((
836 -(% style="color:blue" %)**Default channel:**
837 -)))
838 -
839 -(((
840 -922.1 - SF7BW125 to SF12BW125
841 -)))
842 -
843 -(((
844 -922.3 - SF7BW125 to SF12BW125
845 -)))
846 -
847 -(((
848 -922.5 - SF7BW125 to SF12BW125
849 -)))
850 -
851 -(((
852 -
853 -)))
854 -
855 -(((
856 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
857 -)))
858 -
859 -(((
860 -922.1 - SF7BW125 to SF12BW125
861 -)))
862 -
863 -(((
864 -922.3 - SF7BW125 to SF12BW125
865 -)))
866 -
867 -(((
868 -922.5 - SF7BW125 to SF12BW125
869 -)))
870 -
871 -(((
872 -922.7 - SF7BW125 to SF12BW125
873 -)))
874 -
875 -(((
876 -922.9 - SF7BW125 to SF12BW125
877 -)))
878 -
879 -(((
880 -923.1 - SF7BW125 to SF12BW125
881 -)))
882 -
883 -(((
884 -923.3 - SF7BW125 to SF12BW125
885 -)))
886 -
887 -(((
888 -
889 -)))
890 -
891 -(((
892 -(% style="color:blue" %)**Downlink:**
893 -)))
894 -
895 -(((
896 -Uplink channels 1-7(RX1)
897 -)))
898 -
899 -(((
900 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
901 -)))
902 -
903 -
904 -
905 -=== 2.6.7  IN865-867 (IN865) ===
906 -
907 -(((
908 -(% style="color:blue" %)**Uplink:**
909 -)))
910 -
911 -(((
912 -865.0625 - SF7BW125 to SF12BW125
913 -)))
914 -
915 -(((
916 -865.4025 - SF7BW125 to SF12BW125
917 -)))
918 -
919 -(((
920 -865.9850 - SF7BW125 to SF12BW125
921 -)))
922 -
923 -(((
924 -
925 -)))
926 -
927 -(((
928 -(% style="color:blue" %)**Downlink:**
929 -)))
930 -
931 -(((
932 -Uplink channels 1-3 (RX1)
933 -)))
934 -
935 -(((
936 -866.550 - SF10BW125 (RX2)
937 -)))
938 -
939 -
940 -
941 -== 2.7  LED Indicator ==
942 -
943 -The LDDS75 has an internal LED which is to show the status of different state.
944 -
945 -
946 946  * Blink once when device power on.
947 947  * The device detects the sensor and flashes 5 times.
948 948  * Solid ON for 5 seconds once device successful Join the network.
949 -* Blink once when device transmit a packet.
950 950  
495 +Blink once when device transmit a packet.
496 +
497 +
498 +
951 951  == 2.8  ​Firmware Change Log ==
952 952  
953 953  
image-20220615100930-15.png
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