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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 174.7
edited by Xiaoling
on 2022/06/15 10:34
Change comment: There is no comment for this version
To version 172.7
edited by Xiaoling
on 2022/06/15 09:58
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -100,6 +100,8 @@
100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 +
104 +
103 103  == 1.3  Suitable Container & Liquid ==
104 104  
105 105  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -109,6 +109,8 @@
109 109  ** Pure non metal material: <10 mm
110 110  * Pure liquid without irregular deposition.
111 111  
114 +
115 +
112 112  == 1.4  Mechanical ==
113 113  
114 114  [[image:image-20220615090910-1.png]]
... ... @@ -198,6 +198,9 @@
198 198  * Smart liquid control solution.
199 199  * Smart liquefied gas solution.
200 200  
205 +
206 +
207 +
201 201  == 1.7  Precautions ==
202 202  
203 203  * 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.
... ... @@ -204,6 +204,9 @@
204 204  * 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.
205 205  * 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.
206 206  
214 +
215 +
216 +
207 207  == 1.8  Pin mapping and power on ==
208 208  
209 209  
... ... @@ -217,7 +217,7 @@
217 217  == 2.1  How it works ==
218 218  
219 219  (((
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.
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.
221 221  )))
222 222  
223 223  (((
... ... @@ -311,7 +311,7 @@
311 311  
312 312  (((
313 313  (((
314 -LDDS20 will uplink payload via LoRaWAN with below payload format: 
324 +LDDS20 will uplink payload via LoRaWAN with below payload format:
315 315  
316 316  Uplink payload includes in total 8 bytes.
317 317  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).
... ... @@ -364,9 +364,10 @@
364 364  
365 365  
366 366  
377 +
367 367  === 2.3.3  Interrupt Pin ===
368 368  
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.
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.
370 370  
371 371  **Example:**
372 372  
... ... @@ -412,164 +412,599 @@
412 412  The payload decoder function for TTN V3 is here:
413 413  
414 414  (((
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/]]
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/]]
416 416  )))
417 417  
418 418  
419 419  
420 -== 2.4  Downlink Payload ==
431 +== 2.4  Uplink Interval ==
421 421  
422 -By default, LDDS20 prints the downlink payload to console port.
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"]]
423 423  
424 -[[image:image-20220615100930-15.png]]
425 425  
426 426  
427 -**Examples:**
437 +== 2.5  ​Show Data in DataCake IoT Server ==
428 428  
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 +)))
429 429  
430 -* (% style="color:blue" %)**Set TDC**
443 +(((
444 +
445 +)))
431 431  
432 -If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
447 +(((
448 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
449 +)))
433 433  
434 -Payload:    01 00 00 1E    TDC=30S
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 +)))
435 435  
436 -Payload:    01 00 00 3C    TDC=60S
437 437  
456 +[[image:1654592790040-760.png]]
438 438  
439 -* (% style="color:blue" %)**Reset**
440 440  
441 -If payload = 0x04FF, it will reset the LDDS20
459 +[[image:1654592800389-571.png]]
442 442  
443 443  
444 -* (% style="color:blue" %)**CFM**
462 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
445 445  
446 -Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
464 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
447 447  
466 +[[image:1654851029373-510.png]]
448 448  
449 449  
450 -== 2.5  ​Show Data in DataCake IoT Server ==
469 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
451 451  
471 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
472 +
473 +
474 +
475 +== 2.6  Frequency Plans ==
476 +
452 452  (((
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:
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.
454 454  )))
455 455  
481 +
482 +
483 +=== 2.6.1  EU863-870 (EU868) ===
484 +
456 456  (((
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 +(((
457 457  
458 458  )))
459 459  
460 460  (((
461 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
530 +(% style="color:blue" %)**Downlink:**
462 462  )))
463 463  
464 464  (((
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:**
534 +Uplink channels 1-9 (RX1)
466 466  )))
467 467  
537 +(((
538 +869.525 - SF9BW125 (RX2 downlink only)
539 +)))
468 468  
469 -[[image:1654592790040-760.png]]
470 470  
471 471  
472 -[[image:1654592800389-571.png]]
543 +=== 2.6.2  US902-928(US915) ===
473 473  
545 +(((
546 +Used in USA, Canada and South America. Default use CHE=2
474 474  
475 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
548 +(% style="color:blue" %)**Uplink:**
476 476  
477 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
550 +903.9 - SF7BW125 to SF10BW125
478 478  
479 -[[image:1654851029373-510.png]]
552 +904.1 - SF7BW125 to SF10BW125
480 480  
554 +904.3 - SF7BW125 to SF10BW125
481 481  
482 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
556 +904.5 - SF7BW125 to SF10BW125
483 483  
484 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
558 +904.7 - SF7BW125 to SF10BW125
485 485  
560 +904.9 - SF7BW125 to SF10BW125
486 486  
562 +905.1 - SF7BW125 to SF10BW125
487 487  
488 -== 2.6  LED Indicator ==
564 +905.3 - SF7BW125 to SF10BW125
489 489  
490 -The LDDS20 has an internal LED which is to show the status of different state.
491 491  
567 +(% style="color:blue" %)**Downlink:**
492 492  
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.
569 +923.3 - SF7BW500 to SF12BW500
497 497  
571 +923.9 - SF7BW500 to SF12BW500
498 498  
573 +924.5 - SF7BW500 to SF12BW500
499 499  
500 -== 2.7  ​Firmware Change Log ==
575 +925.1 - SF7BW500 to SF12BW500
501 501  
577 +925.7 - SF7BW500 to SF12BW500
502 502  
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 +
503 503  (((
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/]]
594 +Used in China, Default use CHE=1
505 505  )))
506 506  
507 507  (((
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 +(((
508 508  
509 509  )))
510 510  
511 511  (((
512 -**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
638 +(% style="color:blue" %)**Downlink:**
513 513  )))
514 514  
641 +(((
642 +506.7 - SF7BW125 to SF12BW125
643 +)))
515 515  
645 +(((
646 +506.9 - SF7BW125 to SF12BW125
647 +)))
516 516  
517 -== 2.8  Battery Analysis ==
649 +(((
650 +507.1 - SF7BW125 to SF12BW125
651 +)))
518 518  
653 +(((
654 +507.3 - SF7BW125 to SF12BW125
655 +)))
519 519  
657 +(((
658 +507.5 - SF7BW125 to SF12BW125
659 +)))
520 520  
661 +(((
662 +507.7 - SF7BW125 to SF12BW125
663 +)))
521 521  
522 -=== 2.8.1  Battery Type ===
665 +(((
666 +507.9 - SF7BW125 to SF12BW125
667 +)))
523 523  
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.
669 +(((
670 +508.1 - SF7BW125 to SF12BW125
671 +)))
525 525  
673 +(((
674 +505.3 - SF12BW125 (RX2 downlink only)
675 +)))
526 526  
527 -The battery related documents as below:
528 528  
529 -* (((
530 -[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
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 +
531 531  )))
532 -* (((
533 -[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
726 +
727 +=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
728 +
729 +(((
730 +(% style="color:blue" %)**Default Uplink channel:**
534 534  )))
535 -* (((
536 -[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
732 +
733 +(((
734 +923.2 - SF7BW125 to SF10BW125
537 537  )))
538 538  
539 - [[image:image-20220615102527-16.png]]
737 +(((
738 +923.4 - SF7BW125 to SF10BW125
739 +)))
540 540  
741 +(((
742 +
743 +)))
541 541  
745 +(((
746 +(% style="color:blue" %)**Additional Uplink Channel**:
747 +)))
542 542  
543 -== 2.8.2  Battery Note ==
749 +(((
750 +(OTAA mode, channel added by JoinAccept message)
751 +)))
544 544  
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.
753 +(((
754 +
755 +)))
546 546  
757 +(((
758 +(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
759 +)))
547 547  
761 +(((
762 +922.2 - SF7BW125 to SF10BW125
763 +)))
548 548  
549 -=== 2.8.3  Replace the battery ===
765 +(((
766 +922.4 - SF7BW125 to SF10BW125
767 +)))
550 550  
551 551  (((
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.
770 +922.6 - SF7BW125 to SF10BW125
553 553  )))
554 554  
555 555  (((
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 +(((
556 556  
557 557  )))
558 558  
559 559  (((
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)
790 +(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
561 561  )))
562 562  
793 +(((
794 +923.6 - SF7BW125 to SF10BW125
795 +)))
563 563  
797 +(((
798 +923.8 - SF7BW125 to SF10BW125
799 +)))
564 564  
565 -== 2.8.4  Battery Life Analyze ==
801 +(((
802 +924.0 - SF7BW125 to SF10BW125
803 +)))
566 566  
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:
805 +(((
806 +924.2 - SF7BW125 to SF10BW125
807 +)))
568 568  
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]]
809 +(((
810 +924.4 - SF7BW125 to SF10BW125
811 +)))
570 570  
813 +(((
814 +924.6 - SF7BW125 to SF10BW125
815 +)))
571 571  
817 +(((
818 +
819 +)))
572 572  
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 +
573 573  = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
574 574  
575 575  (((
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