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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 172.7
edited by Xiaoling
on 2022/06/15 09:58
Change comment: There is no comment for this version
To version 174.7
edited by Xiaoling
on 2022/06/15 10:34
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).
... ... @@ -374,10 +374,9 @@
374 374  
375 375  
376 376  
377 -
378 378  === 2.3.3  Interrupt Pin ===
379 379  
380 -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.
369 +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.
381 381  
382 382  **Example:**
383 383  
... ... @@ -423,599 +423,164 @@
423 423  The payload decoder function for TTN V3 is here:
424 424  
425 425  (((
426 -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/]]
415 +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/]]
427 427  )))
428 428  
429 429  
430 430  
431 -== 2.4  Uplink Interval ==
420 +== 2.4  Downlink Payload ==
432 432  
433 -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"]]
422 +By default, LDDS20 prints the downlink payload to console port.
434 434  
424 +[[image:image-20220615100930-15.png]]
435 435  
436 436  
437 -== 2.5  ​Show Data in DataCake IoT Server ==
427 +**Examples:**
438 438  
439 -(((
440 -[[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:
441 -)))
442 442  
443 -(((
444 -
445 -)))
430 +* (% style="color:blue" %)**Set TDC**
446 446  
447 -(((
448 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
449 -)))
432 +If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
450 450  
451 -(((
452 -(% 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:**
453 -)))
434 +Payload:    01 00 00 1E    TDC=30S
454 454  
436 +Payload:    01 00 00 3C    TDC=60S
455 455  
456 -[[image:1654592790040-760.png]]
457 457  
439 +* (% style="color:blue" %)**Reset**
458 458  
459 -[[image:1654592800389-571.png]]
441 +If payload = 0x04FF, it will reset the LDDS20
460 460  
461 461  
462 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
444 +* (% style="color:blue" %)**CFM**
463 463  
464 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
446 +Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
465 465  
466 -[[image:1654851029373-510.png]]
467 467  
468 468  
469 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
450 +== 2.5  ​Show Data in DataCake IoT Server ==
470 470  
471 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
472 -
473 -
474 -
475 -== 2.6  Frequency Plans ==
476 -
477 477  (((
478 -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.
453 +[[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:
479 479  )))
480 480  
481 -
482 -
483 -=== 2.6.1  EU863-870 (EU868) ===
484 -
485 485  (((
486 -(% style="color:blue" %)**Uplink:**
487 -)))
488 -
489 -(((
490 -868.1 - SF7BW125 to SF12BW125
491 -)))
492 -
493 -(((
494 -868.3 - SF7BW125 to SF12BW125 and SF7BW250
495 -)))
496 -
497 -(((
498 -868.5 - SF7BW125 to SF12BW125
499 -)))
500 -
501 -(((
502 -867.1 - SF7BW125 to SF12BW125
503 -)))
504 -
505 -(((
506 -867.3 - SF7BW125 to SF12BW125
507 -)))
508 -
509 -(((
510 -867.5 - SF7BW125 to SF12BW125
511 -)))
512 -
513 -(((
514 -867.7 - SF7BW125 to SF12BW125
515 -)))
516 -
517 -(((
518 -867.9 - SF7BW125 to SF12BW125
519 -)))
520 -
521 -(((
522 -868.8 - FSK
523 -)))
524 -
525 -(((
526 526  
527 527  )))
528 528  
529 529  (((
530 -(% style="color:blue" %)**Downlink:**
461 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
531 531  )))
532 532  
533 533  (((
534 -Uplink channels 1-9 (RX1)
465 +(% 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:**
535 535  )))
536 536  
537 -(((
538 -869.525 - SF9BW125 (RX2 downlink only)
539 -)))
540 540  
469 +[[image:1654592790040-760.png]]
541 541  
542 542  
543 -=== 2.6.2  US902-928(US915) ===
472 +[[image:1654592800389-571.png]]
544 544  
545 -(((
546 -Used in USA, Canada and South America. Default use CHE=2
547 547  
548 -(% style="color:blue" %)**Uplink:**
475 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
549 549  
550 -903.9 - SF7BW125 to SF10BW125
477 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
551 551  
552 -904.1 - SF7BW125 to SF10BW125
479 +[[image:1654851029373-510.png]]
553 553  
554 -904.3 - SF7BW125 to SF10BW125
555 555  
556 -904.5 - SF7BW125 to SF10BW125
482 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
557 557  
558 -904.7 - SF7BW125 to SF10BW125
484 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
559 559  
560 -904.9 - SF7BW125 to SF10BW125
561 561  
562 -905.1 - SF7BW125 to SF10BW125
563 563  
564 -905.3 - SF7BW125 to SF10BW125
488 +== 2.6  LED Indicator ==
565 565  
490 +The LDDS20 has an internal LED which is to show the status of different state.
566 566  
567 -(% style="color:blue" %)**Downlink:**
568 568  
569 -923.3 - SF7BW500 to SF12BW500
493 +* Blink once when device power on.
494 +* The device detects the sensor and flashes 5 times.
495 +* Solid ON for 5 seconds once device successful Join the network.
496 +* Blink once when device transmit a packet.
570 570  
571 -923.9 - SF7BW500 to SF12BW500
572 572  
573 -924.5 - SF7BW500 to SF12BW500
574 574  
575 -925.1 - SF7BW500 to SF12BW500
500 +== 2.7  ​Firmware Change Log ==
576 576  
577 -925.7 - SF7BW500 to SF12BW500
578 578  
579 -926.3 - SF7BW500 to SF12BW500
580 -
581 -926.9 - SF7BW500 to SF12BW500
582 -
583 -927.5 - SF7BW500 to SF12BW500
584 -
585 -923.3 - SF12BW500(RX2 downlink only)
586 -
587 -
588 -
589 -)))
590 -
591 -=== 2.6.3  CN470-510 (CN470) ===
592 -
593 593  (((
594 -Used in China, Default use CHE=1
504 +**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/]]
595 595  )))
596 596  
597 597  (((
598 -(% style="color:blue" %)**Uplink:**
599 -)))
600 -
601 -(((
602 -486.3 - SF7BW125 to SF12BW125
603 -)))
604 -
605 -(((
606 -486.5 - SF7BW125 to SF12BW125
607 -)))
608 -
609 -(((
610 -486.7 - SF7BW125 to SF12BW125
611 -)))
612 -
613 -(((
614 -486.9 - SF7BW125 to SF12BW125
615 -)))
616 -
617 -(((
618 -487.1 - SF7BW125 to SF12BW125
619 -)))
620 -
621 -(((
622 -487.3 - SF7BW125 to SF12BW125
623 -)))
624 -
625 -(((
626 -487.5 - SF7BW125 to SF12BW125
627 -)))
628 -
629 -(((
630 -487.7 - SF7BW125 to SF12BW125
631 -)))
632 -
633 -(((
634 634  
635 635  )))
636 636  
637 637  (((
638 -(% style="color:blue" %)**Downlink:**
512 +**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
639 639  )))
640 640  
641 -(((
642 -506.7 - SF7BW125 to SF12BW125
643 -)))
644 644  
645 -(((
646 -506.9 - SF7BW125 to SF12BW125
647 -)))
648 648  
649 -(((
650 -507.1 - SF7BW125 to SF12BW125
651 -)))
517 +== 2.8  Battery Analysis ==
652 652  
653 -(((
654 -507.3 - SF7BW125 to SF12BW125
655 -)))
656 656  
657 -(((
658 -507.5 - SF7BW125 to SF12BW125
659 -)))
660 660  
661 -(((
662 -507.7 - SF7BW125 to SF12BW125
663 -)))
664 664  
665 -(((
666 -507.9 - SF7BW125 to SF12BW125
667 -)))
522 +=== 2.8.1  Battery Type ===
668 668  
669 -(((
670 -508.1 - SF7BW125 to SF12BW125
671 -)))
524 +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.
672 672  
673 -(((
674 -505.3 - SF12BW125 (RX2 downlink only)
675 -)))
676 676  
527 +The battery related documents as below:
677 677  
678 -
679 -=== 2.6.4  AU915-928(AU915) ===
680 -
681 -(((
682 -Default use CHE=2
683 -
684 -(% style="color:blue" %)**Uplink:**
685 -
686 -916.8 - SF7BW125 to SF12BW125
687 -
688 -917.0 - SF7BW125 to SF12BW125
689 -
690 -917.2 - SF7BW125 to SF12BW125
691 -
692 -917.4 - SF7BW125 to SF12BW125
693 -
694 -917.6 - SF7BW125 to SF12BW125
695 -
696 -917.8 - SF7BW125 to SF12BW125
697 -
698 -918.0 - SF7BW125 to SF12BW125
699 -
700 -918.2 - SF7BW125 to SF12BW125
701 -
702 -
703 -(% style="color:blue" %)**Downlink:**
704 -
705 -923.3 - SF7BW500 to SF12BW500
706 -
707 -923.9 - SF7BW500 to SF12BW500
708 -
709 -924.5 - SF7BW500 to SF12BW500
710 -
711 -925.1 - SF7BW500 to SF12BW500
712 -
713 -925.7 - SF7BW500 to SF12BW500
714 -
715 -926.3 - SF7BW500 to SF12BW500
716 -
717 -926.9 - SF7BW500 to SF12BW500
718 -
719 -927.5 - SF7BW500 to SF12BW500
720 -
721 -923.3 - SF12BW500(RX2 downlink only)
722 -
723 -
724 -
529 +* (((
530 +[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
725 725  )))
726 -
727 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
728 -
729 -(((
730 -(% style="color:blue" %)**Default Uplink channel:**
532 +* (((
533 +[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
731 731  )))
732 -
733 -(((
734 -923.2 - SF7BW125 to SF10BW125
535 +* (((
536 +[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
735 735  )))
736 736  
737 -(((
738 -923.4 - SF7BW125 to SF10BW125
739 -)))
539 + [[image:image-20220615102527-16.png]]
740 740  
741 -(((
742 -
743 -)))
744 744  
745 -(((
746 -(% style="color:blue" %)**Additional Uplink Channel**:
747 -)))
748 748  
749 -(((
750 -(OTAA mode, channel added by JoinAccept message)
751 -)))
543 +== 2.8.2  Battery Note ==
752 752  
753 -(((
754 -
755 -)))
545 +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.
756 756  
757 -(((
758 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
759 -)))
760 760  
761 -(((
762 -922.2 - SF7BW125 to SF10BW125
763 -)))
764 764  
765 -(((
766 -922.4 - SF7BW125 to SF10BW125
767 -)))
549 +=== 2.8.3  Replace the battery ===
768 768  
769 769  (((
770 -922.6 - SF7BW125 to SF10BW125
552 +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.
771 771  )))
772 772  
773 773  (((
774 -922.8 - SF7BW125 to SF10BW125
775 -)))
776 -
777 -(((
778 -923.0 - SF7BW125 to SF10BW125
779 -)))
780 -
781 -(((
782 -922.0 - SF7BW125 to SF10BW125
783 -)))
784 -
785 -(((
786 786  
787 787  )))
788 788  
789 789  (((
790 -(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
560 +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)
791 791  )))
792 792  
793 -(((
794 -923.6 - SF7BW125 to SF10BW125
795 -)))
796 796  
797 -(((
798 -923.8 - SF7BW125 to SF10BW125
799 -)))
800 800  
801 -(((
802 -924.0 - SF7BW125 to SF10BW125
803 -)))
565 +== 2.8.4  Battery Life Analyze ==
804 804  
805 -(((
806 -924.2 - SF7BW125 to SF10BW125
807 -)))
567 +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:
808 808  
809 -(((
810 -924.4 - SF7BW125 to SF10BW125
811 -)))
569 +[[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]]
812 812  
813 -(((
814 -924.6 - SF7BW125 to SF10BW125
815 -)))
816 816  
817 -(((
818 -
819 -)))
820 820  
821 -(((
822 -(% style="color:blue" %)**Downlink:**
823 -)))
824 -
825 -(((
826 -Uplink channels 1-8 (RX1)
827 -)))
828 -
829 -(((
830 -923.2 - SF10BW125 (RX2)
831 -)))
832 -
833 -
834 -
835 -=== 2.6.6  KR920-923 (KR920) ===
836 -
837 -(((
838 -(% style="color:blue" %)**Default channel:**
839 -)))
840 -
841 -(((
842 -922.1 - SF7BW125 to SF12BW125
843 -)))
844 -
845 -(((
846 -922.3 - SF7BW125 to SF12BW125
847 -)))
848 -
849 -(((
850 -922.5 - SF7BW125 to SF12BW125
851 -)))
852 -
853 -(((
854 -
855 -)))
856 -
857 -(((
858 -(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
859 -)))
860 -
861 -(((
862 -922.1 - SF7BW125 to SF12BW125
863 -)))
864 -
865 -(((
866 -922.3 - SF7BW125 to SF12BW125
867 -)))
868 -
869 -(((
870 -922.5 - SF7BW125 to SF12BW125
871 -)))
872 -
873 -(((
874 -922.7 - SF7BW125 to SF12BW125
875 -)))
876 -
877 -(((
878 -922.9 - SF7BW125 to SF12BW125
879 -)))
880 -
881 -(((
882 -923.1 - SF7BW125 to SF12BW125
883 -)))
884 -
885 -(((
886 -923.3 - SF7BW125 to SF12BW125
887 -)))
888 -
889 -(((
890 -
891 -)))
892 -
893 -(((
894 -(% style="color:blue" %)**Downlink:**
895 -)))
896 -
897 -(((
898 -Uplink channels 1-7(RX1)
899 -)))
900 -
901 -(((
902 -921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
903 -)))
904 -
905 -
906 -
907 -=== 2.6.7  IN865-867 (IN865) ===
908 -
909 -(((
910 -(% style="color:blue" %)**Uplink:**
911 -)))
912 -
913 -(((
914 -865.0625 - SF7BW125 to SF12BW125
915 -)))
916 -
917 -(((
918 -865.4025 - SF7BW125 to SF12BW125
919 -)))
920 -
921 -(((
922 -865.9850 - SF7BW125 to SF12BW125
923 -)))
924 -
925 -(((
926 -
927 -)))
928 -
929 -(((
930 -(% style="color:blue" %)**Downlink:**
931 -)))
932 -
933 -(((
934 -Uplink channels 1-3 (RX1)
935 -)))
936 -
937 -(((
938 -866.550 - SF10BW125 (RX2)
939 -)))
940 -
941 -
942 -
943 -== 2.7  LED Indicator ==
944 -
945 -The LDDS75 has an internal LED which is to show the status of different state.
946 -
947 -
948 -* Blink once when device power on.
949 -* The device detects the sensor and flashes 5 times.
950 -* Solid ON for 5 seconds once device successful Join the network.
951 -* Blink once when device transmit a packet.
952 -
953 -== 2.8  ​Firmware Change Log ==
954 -
955 -
956 -(((
957 -**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/]]
958 -)))
959 -
960 -(((
961 -
962 -)))
963 -
964 -(((
965 -**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
966 -)))
967 -
968 -
969 -
970 -== 2.9  Mechanical ==
971 -
972 -
973 -[[image:image-20220610172003-1.png]]
974 -
975 -
976 -[[image:image-20220610172003-2.png]]
977 -
978 -
979 -
980 -== 2.10  Battery Analysis ==
981 -
982 -=== 2.10.1  Battery Type ===
983 -
984 -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.
985 -
986 -
987 -The battery related documents as below:
988 -
989 -* (((
990 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
991 -)))
992 -* (((
993 -[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
994 -)))
995 -* (((
996 -[[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]]
997 -)))
998 -
999 - [[image:image-20220610172400-3.png]]
1000 -
1001 -
1002 -
1003 -=== 2.10.2  Replace the battery ===
1004 -
1005 -(((
1006 -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.
1007 -)))
1008 -
1009 -(((
1010 -
1011 -)))
1012 -
1013 -(((
1014 -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)
1015 -)))
1016 -
1017 -
1018 -
1019 1019  = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
1020 1020  
1021 1021  (((
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