Skip to Content
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 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).
... ... @@ -369,16 +369,14 @@
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.
375 375  
376 376  
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.
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.
382 382  
383 383  **Example:**
384 384  
... ... @@ -424,599 +424,164 @@
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/]]
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/]]
428 428  )))
429 429  
430 430  
431 431  
432 -== 2.4  Uplink Interval ==
420 +== 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"]]
422 +By default, LDDS20 prints the downlink payload to console port.
435 435  
424 +[[image:image-20220615100930-15.png]]
436 436  
437 437  
438 -== 2.5  ​Show Data in DataCake IoT Server ==
427 +**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 -)))
430 +* (% 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 -)))
432 +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 -)))
434 +Payload:    01 00 00 1E    TDC=30S
455 455  
436 +Payload:    01 00 00 3C    TDC=60S
456 456  
457 -[[image:1654592790040-760.png]]
458 458  
439 +* (% style="color:blue" %)**Reset**
459 459  
460 -[[image:1654592800389-571.png]]
441 +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.**
444 +* (% style="color:blue" %)**CFM**
464 464  
465 -(% 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
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.
450 +== 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.
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:
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:**
461 +(% 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)
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:**
536 536  )))
537 537  
538 -(((
539 -869.525 - SF9BW125 (RX2 downlink only)
540 -)))
541 541  
469 +[[image:1654592790040-760.png]]
542 542  
543 543  
544 -=== 2.6.2  US902-928(US915) ===
472 +[[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:**
475 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
550 550  
551 -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)(%%)**
552 552  
553 -904.1 - SF7BW125 to SF10BW125
479 +[[image:1654851029373-510.png]]
554 554  
555 -904.3 - SF7BW125 to SF10BW125
556 556  
557 -904.5 - SF7BW125 to SF10BW125
482 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
558 558  
559 -904.7 - SF7BW125 to SF10BW125
484 +[[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
488 +== 2.6  LED Indicator ==
566 566  
490 +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
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.
571 571  
572 -923.9 - SF7BW500 to SF12BW500
573 573  
574 -924.5 - SF7BW500 to SF12BW500
575 575  
576 -925.1 - SF7BW500 to SF12BW500
500 +== 2.7  ​Firmware Change Log ==
577 577  
578 -925.7 - SF7BW500 to SF12BW500
579 579  
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 -
594 594  (((
595 -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/]]
596 596  )))
597 597  
598 598  (((
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 -(((
635 635  
636 636  )))
637 637  
638 638  (((
639 -(% style="color:blue" %)**Downlink:**
512 +**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
640 640  )))
641 641  
642 -(((
643 -506.7 - SF7BW125 to SF12BW125
644 -)))
645 645  
646 -(((
647 -506.9 - SF7BW125 to SF12BW125
648 -)))
649 649  
650 -(((
651 -507.1 - SF7BW125 to SF12BW125
652 -)))
517 +== 2.8  Battery Analysis ==
653 653  
654 -(((
655 -507.3 - SF7BW125 to SF12BW125
656 -)))
657 657  
658 -(((
659 -507.5 - SF7BW125 to SF12BW125
660 -)))
661 661  
662 -(((
663 -507.7 - SF7BW125 to SF12BW125
664 -)))
665 665  
666 -(((
667 -507.9 - SF7BW125 to SF12BW125
668 -)))
522 +=== 2.8.1  Battery Type ===
669 669  
670 -(((
671 -508.1 - SF7BW125 to SF12BW125
672 -)))
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.
673 673  
674 -(((
675 -505.3 - SF12BW125 (RX2 downlink only)
676 -)))
677 677  
527 +The battery related documents as below:
678 678  
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 -
529 +* (((
530 +[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
726 726  )))
727 -
728 -=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
729 -
730 -(((
731 -(% style="color:blue" %)**Default Uplink channel:**
532 +* (((
533 +[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
732 732  )))
733 -
734 -(((
735 -923.2 - SF7BW125 to SF10BW125
535 +* (((
536 +[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
736 736  )))
737 737  
738 -(((
739 -923.4 - SF7BW125 to SF10BW125
740 -)))
539 + [[image:image-20220615102527-16.png]]
741 741  
742 -(((
743 -
744 -)))
745 745  
746 -(((
747 -(% style="color:blue" %)**Additional Uplink Channel**:
748 -)))
749 749  
750 -(((
751 -(OTAA mode, channel added by JoinAccept message)
752 -)))
543 +== 2.8.2  Battery Note ==
753 753  
754 -(((
755 -
756 -)))
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.
757 757  
758 -(((
759 -(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
760 -)))
761 761  
762 -(((
763 -922.2 - SF7BW125 to SF10BW125
764 -)))
765 765  
766 -(((
767 -922.4 - SF7BW125 to SF10BW125
768 -)))
549 +=== 2.8.3  Replace the battery ===
769 769  
770 770  (((
771 -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.
772 772  )))
773 773  
774 774  (((
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 -(((
787 787  
788 788  )))
789 789  
790 790  (((
791 -(% 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)
792 792  )))
793 793  
794 -(((
795 -923.6 - SF7BW125 to SF10BW125
796 -)))
797 797  
798 -(((
799 -923.8 - SF7BW125 to SF10BW125
800 -)))
801 801  
802 -(((
803 -924.0 - SF7BW125 to SF10BW125
804 -)))
565 +== 2.8.4  Battery Life Analyze ==
805 805  
806 -(((
807 -924.2 - SF7BW125 to SF10BW125
808 -)))
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:
809 809  
810 -(((
811 -924.4 - SF7BW125 to SF10BW125
812 -)))
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]]
813 813  
814 -(((
815 -924.6 - SF7BW125 to SF10BW125
816 -)))
817 817  
818 -(((
819 -
820 -)))
821 821  
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 -* Blink once when device power on.
950 -* The device detects the sensor and flashes 5 times.
951 -* Solid ON for 5 seconds once device successful Join the network.
952 -* Blink once when device transmit a packet.
953 -
954 -== 2.8  ​Firmware Change Log ==
955 -
956 -
957 -(((
958 -**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/]]
959 -)))
960 -
961 -(((
962 -
963 -)))
964 -
965 -(((
966 -**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
967 -)))
968 -
969 -
970 -
971 -== 2.9  Mechanical ==
972 -
973 -
974 -[[image:image-20220610172003-1.png]]
975 -
976 -
977 -[[image:image-20220610172003-2.png]]
978 -
979 -
980 -
981 -== 2.10  Battery Analysis ==
982 -
983 -=== 2.10.1  Battery Type ===
984 -
985 -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.
986 -
987 -
988 -The battery related documents as below:
989 -
990 -* (((
991 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
992 -)))
993 -* (((
994 -[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
995 -)))
996 -* (((
997 -[[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]]
998 -)))
999 -
1000 - [[image:image-20220610172400-3.png]]
1001 -
1002 -
1003 -
1004 -=== 2.10.2  Replace the battery ===
1005 -
1006 -(((
1007 -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.
1008 -)))
1009 -
1010 -(((
1011 -
1012 -)))
1013 -
1014 -(((
1015 -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)
1016 -)))
1017 -
1018 -
1019 -
1020 1020  = 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
1021 1021  
1022 1022  (((
image-20220615100930-15.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +10.5 KB
Content
image-20220615102527-16.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +182.9 KB
Content