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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.2
edited by Xiaoling
on 2022/06/15 10:46
Change comment: There is no comment for this version
To version 172.8
edited by Xiaoling
on 2022/06/15 10:04
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -100,6 +100,7 @@
100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 +
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 +109,7 @@
109 109  ** Pure non metal material: <10 mm
110 110  * Pure liquid without irregular deposition.
111 111  
113 +
112 112  == 1.4  Mechanical ==
113 113  
114 114  [[image:image-20220615090910-1.png]]
... ... @@ -198,6 +198,8 @@
198 198  * Smart liquid control solution.
199 199  * Smart liquefied gas solution.
200 200  
203 +
204 +
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 +204,8 @@
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  
211 +
212 +
207 207  == 1.8  Pin mapping and power on ==
208 208  
209 209  
... ... @@ -363,6 +363,7 @@
363 363  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
364 364  
365 365  
372 +
366 366  === 2.3.3  Interrupt Pin ===
367 367  
368 368  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.
... ... @@ -406,7 +406,7 @@
406 406  While using TTN network, you can add the payload format to decode the payload.
407 407  
408 408  
409 -[[image:1655261164557-670.png]]
416 +[[image:1654850829385-439.png]]
410 410  
411 411  The payload decoder function for TTN V3 is here:
412 412  
... ... @@ -416,294 +416,694 @@
416 416  
417 417  
418 418  
419 -== 2.4  Downlink Payload ==
426 +== 2.4  Uplink Interval ==
420 420  
421 -By default, LDDS20 prints the downlink payload to console port.
428 +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"]]
422 422  
423 -[[image:image-20220615100930-15.png]]
424 424  
425 425  
426 -**Examples:**
432 +== 2.5  ​Show Data in DataCake IoT Server ==
427 427  
434 +(((
435 +[[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:
436 +)))
428 428  
429 -* (% style="color:blue" %)**Set TDC**
438 +(((
439 +
440 +)))
430 430  
431 -If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
442 +(((
443 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
444 +)))
432 432  
433 -Payload:    01 00 00 1E    TDC=30S
446 +(((
447 +(% 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:**
448 +)))
434 434  
435 -Payload:    01 00 00 3C    TDC=60S
436 436  
451 +[[image:1654592790040-760.png]]
437 437  
438 -* (% style="color:blue" %)**Reset**
439 439  
440 -If payload = 0x04FF, it will reset the LDDS20
454 +[[image:1654592800389-571.png]]
441 441  
442 442  
443 -* (% style="color:blue" %)**CFM**
457 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
444 444  
445 -Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
459 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
446 446  
461 +[[image:1654851029373-510.png]]
447 447  
448 448  
449 -== 2.5  ​Show Data in DataCake IoT Server ==
464 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
450 450  
466 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
467 +
468 +
469 +
470 +== 2.6  Frequency Plans ==
471 +
451 451  (((
452 -[[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:
473 +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.
453 453  )))
454 454  
476 +
477 +
478 +=== 2.6.1  EU863-870 (EU868) ===
479 +
455 455  (((
481 +(% style="color:blue" %)**Uplink:**
482 +)))
483 +
484 +(((
485 +868.1 - SF7BW125 to SF12BW125
486 +)))
487 +
488 +(((
489 +868.3 - SF7BW125 to SF12BW125 and SF7BW250
490 +)))
491 +
492 +(((
493 +868.5 - SF7BW125 to SF12BW125
494 +)))
495 +
496 +(((
497 +867.1 - SF7BW125 to SF12BW125
498 +)))
499 +
500 +(((
501 +867.3 - SF7BW125 to SF12BW125
502 +)))
503 +
504 +(((
505 +867.5 - SF7BW125 to SF12BW125
506 +)))
507 +
508 +(((
509 +867.7 - SF7BW125 to SF12BW125
510 +)))
511 +
512 +(((
513 +867.9 - SF7BW125 to SF12BW125
514 +)))
515 +
516 +(((
517 +868.8 - FSK
518 +)))
519 +
520 +(((
456 456  
457 457  )))
458 458  
459 459  (((
460 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
525 +(% style="color:blue" %)**Downlink:**
461 461  )))
462 462  
463 463  (((
464 -(% 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:**
529 +Uplink channels 1-9 (RX1)
465 465  )))
466 466  
532 +(((
533 +869.525 - SF9BW125 (RX2 downlink only)
534 +)))
467 467  
468 -[[image:1654592790040-760.png]]
469 469  
470 470  
471 -[[image:1654592800389-571.png]]
538 +=== 2.6.2  US902-928(US915) ===
472 472  
540 +(((
541 +Used in USA, Canada and South America. Default use CHE=2
473 473  
474 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
543 +(% style="color:blue" %)**Uplink:**
475 475  
476 -(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
545 +903.9 - SF7BW125 to SF10BW125
477 477  
478 -[[image:1654851029373-510.png]]
547 +904.1 - SF7BW125 to SF10BW125
479 479  
549 +904.3 - SF7BW125 to SF10BW125
480 480  
481 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
551 +904.5 - SF7BW125 to SF10BW125
482 482  
483 -[[image:image-20220610165129-11.png||height="595" width="1088"]]
553 +904.7 - SF7BW125 to SF10BW125
484 484  
555 +904.9 - SF7BW125 to SF10BW125
485 485  
557 +905.1 - SF7BW125 to SF10BW125
486 486  
487 -== 2.6  LED Indicator ==
559 +905.3 - SF7BW125 to SF10BW125
488 488  
489 -The LDDS20 has an internal LED which is to show the status of different state.
490 490  
562 +(% style="color:blue" %)**Downlink:**
491 491  
492 -* Blink once when device power on.
493 -* The device detects the sensor and flashes 5 times.
494 -* Solid ON for 5 seconds once device successful Join the network.
495 -* Blink once when device transmit a packet.
564 +923.3 - SF7BW500 to SF12BW500
496 496  
566 +923.9 - SF7BW500 to SF12BW500
497 497  
498 -== 2.7  ​Firmware Change Log ==
568 +924.5 - SF7BW500 to SF12BW500
499 499  
570 +925.1 - SF7BW500 to SF12BW500
500 500  
572 +925.7 - SF7BW500 to SF12BW500
573 +
574 +926.3 - SF7BW500 to SF12BW500
575 +
576 +926.9 - SF7BW500 to SF12BW500
577 +
578 +927.5 - SF7BW500 to SF12BW500
579 +
580 +923.3 - SF12BW500(RX2 downlink only)
581 +
582 +
583 +
584 +)))
585 +
586 +=== 2.6.3  CN470-510 (CN470) ===
587 +
501 501  (((
502 -**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/]]
589 +Used in China, Default use CHE=1
503 503  )))
504 504  
505 505  (((
593 +(% style="color:blue" %)**Uplink:**
594 +)))
595 +
596 +(((
597 +486.3 - SF7BW125 to SF12BW125
598 +)))
599 +
600 +(((
601 +486.5 - SF7BW125 to SF12BW125
602 +)))
603 +
604 +(((
605 +486.7 - SF7BW125 to SF12BW125
606 +)))
607 +
608 +(((
609 +486.9 - SF7BW125 to SF12BW125
610 +)))
611 +
612 +(((
613 +487.1 - SF7BW125 to SF12BW125
614 +)))
615 +
616 +(((
617 +487.3 - SF7BW125 to SF12BW125
618 +)))
619 +
620 +(((
621 +487.5 - SF7BW125 to SF12BW125
622 +)))
623 +
624 +(((
625 +487.7 - SF7BW125 to SF12BW125
626 +)))
627 +
628 +(((
506 506  
507 507  )))
508 508  
509 509  (((
510 -**Firmware Upgrade Method:  [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]**
633 +(% style="color:blue" %)**Downlink:**
511 511  )))
512 512  
636 +(((
637 +506.7 - SF7BW125 to SF12BW125
638 +)))
513 513  
640 +(((
641 +506.9 - SF7BW125 to SF12BW125
642 +)))
514 514  
515 -== 2.8  Battery Analysis ==
644 +(((
645 +507.1 - SF7BW125 to SF12BW125
646 +)))
516 516  
648 +(((
649 +507.3 - SF7BW125 to SF12BW125
650 +)))
517 517  
652 +(((
653 +507.5 - SF7BW125 to SF12BW125
654 +)))
518 518  
656 +(((
657 +507.7 - SF7BW125 to SF12BW125
658 +)))
519 519  
520 -=== 2.8.1  Battery Type ===
660 +(((
661 +507.9 - SF7BW125 to SF12BW125
662 +)))
521 521  
522 -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.
664 +(((
665 +508.1 - SF7BW125 to SF12BW125
666 +)))
523 523  
668 +(((
669 +505.3 - SF12BW125 (RX2 downlink only)
670 +)))
524 524  
525 -The battery related documents as below:
526 526  
527 -* (((
528 -[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
673 +
674 +=== 2.6.4  AU915-928(AU915) ===
675 +
676 +(((
677 +Default use CHE=2
678 +
679 +(% style="color:blue" %)**Uplink:**
680 +
681 +916.8 - SF7BW125 to SF12BW125
682 +
683 +917.0 - SF7BW125 to SF12BW125
684 +
685 +917.2 - SF7BW125 to SF12BW125
686 +
687 +917.4 - SF7BW125 to SF12BW125
688 +
689 +917.6 - SF7BW125 to SF12BW125
690 +
691 +917.8 - SF7BW125 to SF12BW125
692 +
693 +918.0 - SF7BW125 to SF12BW125
694 +
695 +918.2 - SF7BW125 to SF12BW125
696 +
697 +
698 +(% style="color:blue" %)**Downlink:**
699 +
700 +923.3 - SF7BW500 to SF12BW500
701 +
702 +923.9 - SF7BW500 to SF12BW500
703 +
704 +924.5 - SF7BW500 to SF12BW500
705 +
706 +925.1 - SF7BW500 to SF12BW500
707 +
708 +925.7 - SF7BW500 to SF12BW500
709 +
710 +926.3 - SF7BW500 to SF12BW500
711 +
712 +926.9 - SF7BW500 to SF12BW500
713 +
714 +927.5 - SF7BW500 to SF12BW500
715 +
716 +923.3 - SF12BW500(RX2 downlink only)
717 +
718 +
719 +
529 529  )))
530 -* (((
531 -[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
721 +
722 +=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
723 +
724 +(((
725 +(% style="color:blue" %)**Default Uplink channel:**
532 532  )))
533 -* (((
534 -[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
727 +
728 +(((
729 +923.2 - SF7BW125 to SF10BW125
535 535  )))
536 536  
537 - [[image:image-20220615102527-16.png]]
732 +(((
733 +923.4 - SF7BW125 to SF10BW125
734 +)))
538 538  
736 +(((
737 +
738 +)))
539 539  
740 +(((
741 +(% style="color:blue" %)**Additional Uplink Channel**:
742 +)))
540 540  
541 -== 2.8.2  Battery Note ==
744 +(((
745 +(OTAA mode, channel added by JoinAccept message)
746 +)))
542 542  
543 -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.
748 +(((
749 +
750 +)))
544 544  
752 +(((
753 +(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
754 +)))
545 545  
756 +(((
757 +922.2 - SF7BW125 to SF10BW125
758 +)))
546 546  
547 -=== 2.8.3  Replace the battery ===
760 +(((
761 +922.4 - SF7BW125 to SF10BW125
762 +)))
548 548  
549 549  (((
550 -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.
765 +922.6 - SF7BW125 to SF10BW125
551 551  )))
552 552  
553 553  (((
769 +922.8 - SF7BW125 to SF10BW125
770 +)))
771 +
772 +(((
773 +923.0 - SF7BW125 to SF10BW125
774 +)))
775 +
776 +(((
777 +922.0 - SF7BW125 to SF10BW125
778 +)))
779 +
780 +(((
554 554  
555 555  )))
556 556  
557 557  (((
558 -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)
785 +(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
559 559  )))
560 560  
788 +(((
789 +923.6 - SF7BW125 to SF10BW125
790 +)))
561 561  
792 +(((
793 +923.8 - SF7BW125 to SF10BW125
794 +)))
562 562  
563 -== 2.8.4  Battery Life Analyze ==
796 +(((
797 +924.0 - SF7BW125 to SF10BW125
798 +)))
564 564  
565 -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:
800 +(((
801 +924.2 - SF7BW125 to SF10BW125
802 +)))
566 566  
567 -[[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]]
804 +(((
805 +924.4 - SF7BW125 to SF10BW125
806 +)))
568 568  
808 +(((
809 +924.6 - SF7BW125 to SF10BW125
810 +)))
569 569  
812 +(((
813 +
814 +)))
570 570  
571 -= 3.  Using the AT Commands =
816 +(((
817 +(% style="color:blue" %)**Downlink:**
818 +)))
572 572  
573 573  (((
821 +Uplink channels 1-8 (RX1)
822 +)))
823 +
574 574  (((
825 +923.2 - SF10BW125 (RX2)
826 +)))
827 +
828 +
829 +
830 +=== 2.6.6  KR920-923 (KR920) ===
831 +
832 +(((
833 +(% style="color:blue" %)**Default channel:**
834 +)))
835 +
836 +(((
837 +922.1 - SF7BW125 to SF12BW125
838 +)))
839 +
840 +(((
841 +922.3 - SF7BW125 to SF12BW125
842 +)))
843 +
844 +(((
845 +922.5 - SF7BW125 to SF12BW125
846 +)))
847 +
848 +(((
575 575  
576 576  )))
851 +
852 +(((
853 +(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
577 577  )))
578 578  
579 -== 3.1  Access AT Commands ==
856 +(((
857 +922.1 - SF7BW125 to SF12BW125
858 +)))
580 580  
581 -LDDS20 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS20 for using AT command, as below.
860 +(((
861 +922.3 - SF7BW125 to SF12BW125
862 +)))
582 582  
864 +(((
865 +922.5 - SF7BW125 to SF12BW125
866 +)))
583 583  
584 -[[image:image-20220610172924-4.png||height="483" width="988"]]
868 +(((
869 +922.7 - SF7BW125 to SF12BW125
870 +)))
585 585  
872 +(((
873 +922.9 - SF7BW125 to SF12BW125
874 +)))
586 586  
587 -Or if you have below board, use below connection:
876 +(((
877 +923.1 - SF7BW125 to SF12BW125
878 +)))
588 588  
880 +(((
881 +923.3 - SF7BW125 to SF12BW125
882 +)))
589 589  
590 -[[image:image-20220610172924-5.png]]
884 +(((
885 +
886 +)))
591 591  
888 +(((
889 +(% style="color:blue" %)**Downlink:**
890 +)))
592 592  
593 593  (((
594 -In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS20. LDDS20 will output system info once power on as below:
893 +Uplink channels 1-7(RX1)
595 595  )))
596 596  
896 +(((
897 +921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
898 +)))
597 597  
598 - [[image:image-20220610172924-6.png||height="601" width="860"]]
599 599  
600 -Below are the available commands, a more detailed AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/]].
601 601  
902 +=== 2.6.7  IN865-867 (IN865) ===
602 602  
603 -AT+<CMD>?  :  Help on <CMD>
904 +(((
905 +(% style="color:blue" %)**Uplink:**
906 +)))
604 604  
605 -AT+<CMD>  :  Run <CMD>
908 +(((
909 +865.0625 - SF7BW125 to SF12BW125
910 +)))
606 606  
607 -AT+<CMD>=<value>  :  Set the value
912 +(((
913 +865.4025 - SF7BW125 to SF12BW125
914 +)))
608 608  
609 -AT+<CMD>=?  :  Get the value
916 +(((
917 +865.9850 - SF7BW125 to SF12BW125
918 +)))
610 610  
920 +(((
921 +
922 +)))
611 611  
612 -(% style="color:#037691" %)** General Commands :**     
924 +(((
925 +(% style="color:blue" %)**Downlink:**
926 +)))
613 613  
614 -AT                    : Attention       
928 +(((
929 +Uplink channels 1-3 (RX1)
930 +)))
615 615  
616 -AT?                            : Short Help     
932 +(((
933 +866.550 - SF10BW125 (RX2)
934 +)))
617 617  
618 -ATZ                            : MCU Reset    
619 619  
620 -AT+TDC           : Application Data Transmission Interval 
621 621  
938 +== 2.7  LED Indicator ==
622 622  
623 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
940 +The LDDS75 has an internal LED which is to show the status of different state.
624 624  
625 -AT+APPEUI              : Application EUI      
626 626  
627 -AT+APPKEY              : Application Key     
943 +* Blink once when device power on.
944 +* The device detects the sensor and flashes 5 times.
945 +* Solid ON for 5 seconds once device successful Join the network.
946 +* Blink once when device transmit a packet.
628 628  
629 -AT+APPSKEY            : Application Session Key
948 +== 2.8  ​Firmware Change Log ==
630 630  
631 -AT+DADDR              : Device Address     
632 632  
633 -AT+DEUI                   : Device EUI     
951 +(((
952 +**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/]]
953 +)))
634 634  
635 -AT+NWKID               : Network ID (You can enter this command change only after successful network connection) 
955 +(((
956 +
957 +)))
636 636  
637 -AT+NWKSKEY          : Network Session Key Joining and sending date on LoRa network  
959 +(((
960 +**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
961 +)))
638 638  
639 -AT+CFM          : Confirm Mode       
640 640  
641 -AT+CFS                     : Confirm Status       
642 642  
643 -AT+JOIN          : Join LoRa? Network       
965 +== 2.9  Mechanical ==
644 644  
645 -AT+NJM          : LoRa? Network Join Mode    
646 646  
647 -AT+NJS                     : LoRa? Network Join Status    
968 +[[image:image-20220610172003-1.png]]
648 648  
649 -AT+RECV                  : Print Last Received Data in Raw Format
650 650  
651 -AT+RECVB                : Print Last Received Data in Binary Format      
971 +[[image:image-20220610172003-2.png]]
652 652  
653 -AT+SEND                  : Send Text Data      
654 654  
655 -AT+SENB                  : Send Hexadecimal Data
656 656  
975 +== 2.10  Battery Analysis ==
657 657  
658 -(% style="color:#037691" %)** LoRa Network Management :**
977 +=== 2.10.1  Battery Type ===
659 659  
660 -AT+ADR          : Adaptive Rate
979 +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.
661 661  
662 -AT+CLASS                : LoRa Class(Currently only support class A
663 663  
664 -AT+DCS           : Duty Cycle Setting 
982 +The battery related documents as below:
665 665  
666 -AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
984 +* (((
985 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
986 +)))
987 +* (((
988 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
989 +)))
990 +* (((
991 +[[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]]
992 +)))
667 667  
668 -AT+FCD           : Frame Counter Downlink       
994 + [[image:image-20220610172400-3.png]]
669 669  
670 -AT+FCU           : Frame Counter Uplink   
671 671  
672 -AT+JN1DL                : Join Accept Delay1
673 673  
674 -AT+JN2DL                : Join Accept Delay2
998 +=== 2.10.2  Replace the battery ===
675 675  
676 -AT+PNM                   : Public Network Mode   
1000 +(((
1001 +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.
1002 +)))
677 677  
678 -AT+RX1DL                : Receive Delay1      
1004 +(((
1005 +
1006 +)))
679 679  
680 -AT+RX2DL                : Receive Delay2      
1008 +(((
1009 +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)
1010 +)))
681 681  
682 -AT+RX2DR               : Rx2 Window Data Rate 
683 683  
684 -AT+RX2FQ               : Rx2 Window Frequency
685 685  
686 -AT+TXP           : Transmit Power
1014 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
687 687  
1016 +(((
1017 +(((
1018 +Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
1019 +)))
1020 +)))
688 688  
689 -(% style="color:#037691" %)** Information :**
1022 +* (((
1023 +(((
1024 +AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
1025 +)))
1026 +)))
1027 +* (((
1028 +(((
1029 +LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
1030 +)))
1031 +)))
690 690  
691 -AT+RSSI           : RSSI of the Last Received Packet   
1033 +(((
1034 +(((
1035 +
1036 +)))
692 692  
693 -AT+SNR           : SNR of the Last Received Packet   
1038 +(((
1039 +There are two kinds of commands to configure LDDS75, they are:
1040 +)))
1041 +)))
694 694  
695 -AT+VER           : Image Version and Frequency Band       
1043 +* (((
1044 +(((
1045 +(% style="color:#4f81bd" %)** General Commands**.
1046 +)))
1047 +)))
696 696  
697 -AT+FDR           : Factory Data Reset
1049 +(((
1050 +(((
1051 +These commands are to configure:
1052 +)))
1053 +)))
698 698  
699 -AT+PORT                  : Application Port    
1055 +* (((
1056 +(((
1057 +General system settings like: uplink interval.
1058 +)))
1059 +)))
1060 +* (((
1061 +(((
1062 +LoRaWAN protocol & radio related command.
1063 +)))
1064 +)))
700 700  
701 -AT+CHS           : Get or Set Frequency (Unit: Hz) for Single Channel Mode
1066 +(((
1067 +(((
1068 +They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
1069 +)))
1070 +)))
702 702  
703 - AT+CHE                   : Get or Set eight channels mode, Only for US915, AU915, CN470
1072 +(((
1073 +(((
1074 +
1075 +)))
1076 +)))
704 704  
1078 +* (((
1079 +(((
1080 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
1081 +)))
1082 +)))
705 705  
1084 +(((
1085 +(((
1086 +These commands only valid for LDDS75, as below:
1087 +)))
1088 +)))
706 706  
1090 +
1091 +
1092 +== 3.1  Access AT Commands ==
1093 +
1094 +LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
1095 +
1096 +[[image:image-20220610172924-4.png||height="483" width="988"]]
1097 +
1098 +
1099 +Or if you have below board, use below connection:
1100 +
1101 +
1102 +[[image:image-20220610172924-5.png]]
1103 +
1104 +
1105 +(((
1106 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below:
1107 +)))
1108 +
1109 +
1110 + [[image:image-20220610172924-6.png||height="601" width="860"]]
1111 +
1112 +
1113 +
707 707  == 3.2  Set Transmit Interval Time ==
708 708  
709 709  Feature: Change LoRaWAN End Node Transmit Interval.
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