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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.11
edited by Xiaoling
on 2022/06/15 10:58
Change comment: There is no comment for this version
To version 174.3
edited by Xiaoling
on 2022/06/15 10:29
Change comment: There is no comment for this version

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405 405  While using TTN network, you can add the payload format to decode the payload.
406 406  
407 407  
408 -[[image:1655261164557-670.png]]
408 +[[image:1654850829385-439.png]]
409 409  
410 410  The payload decoder function for TTN V3 is here:
411 411  
... ... @@ -493,6 +493,8 @@
493 493  * Solid ON for 5 seconds once device successful Join the network.
494 494  * Blink once when device transmit a packet.
495 495  
496 +
497 +
496 496  == 2.7  ​Firmware Change Log ==
497 497  
498 498  
... ... @@ -523,7 +523,7 @@
523 523  The battery related documents as below:
524 524  
525 525  * (((
526 -[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
528 +[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/le=LSN50-Battery-Dimension.pdf]],
527 527  )))
528 528  * (((
529 529  [[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
... ... @@ -536,14 +536,9 @@
536 536  
537 537  
538 538  
539 -== 2.8.2  Battery Note ==
540 540  
541 -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.
542 +=== 2.10.2  Replace the battery ===
542 542  
543 -
544 -
545 -=== 2.8.3  Replace the battery ===
546 -
547 547  (((
548 548  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.
549 549  )))
... ... @@ -558,152 +558,138 @@
558 558  
559 559  
560 560  
561 -== 2.8.4  Battery Life Analyze ==
558 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
562 562  
563 -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:
560 +(((
561 +(((
562 +Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
563 +)))
564 +)))
564 564  
565 -[[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]]
566 +* (((
567 +(((
568 +AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
569 +)))
570 +)))
571 +* (((
572 +(((
573 +LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
574 +)))
575 +)))
566 566  
577 +(((
578 +(((
579 +
580 +)))
567 567  
582 +(((
583 +There are two kinds of commands to configure LDDS75, they are:
584 +)))
585 +)))
568 568  
569 -= 3.  Using the AT Commands =
587 +* (((
588 +(((
589 +(% style="color:#4f81bd" %)** General Commands**.
590 +)))
591 +)))
570 570  
571 571  (((
572 572  (((
573 -
595 +These commands are to configure:
574 574  )))
575 575  )))
576 576  
577 -== 3.1  Access AT Commands ==
599 +* (((
600 +(((
601 +General system settings like: uplink interval.
602 +)))
603 +)))
604 +* (((
605 +(((
606 +LoRaWAN protocol & radio related command.
607 +)))
608 +)))
578 578  
579 -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.
610 +(((
611 +(((
612 +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]]
613 +)))
614 +)))
580 580  
616 +(((
617 +(((
618 +
619 +)))
620 +)))
581 581  
582 -[[image:image-20220610172924-4.png||height="483" width="988"]]
622 +* (((
623 +(((
624 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
625 +)))
626 +)))
583 583  
584 -
585 -Or if you have below board, use below connection:
586 -
587 -
588 -[[image:image-20220610172924-5.png]]
589 -
590 -
591 591  (((
592 -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:
629 +(((
630 +These commands only valid for LDDS75, as below:
593 593  )))
632 +)))
594 594  
595 595  
596 - [[image:image-20220610172924-6.png||height="601" width="860"]]
597 597  
598 -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/]].
636 +== 3.1  Access AT Commands ==
599 599  
638 +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.
600 600  
601 -AT+<CMD>?  :  Help on <CMD>
640 +[[image:image-20220610172924-4.png||height="483" width="988"]]
602 602  
603 -AT+<CMD>  :  Run <CMD>
604 604  
605 -AT+<CMD>=<value>  :  Set the value
643 +Or if you have below board, use below connection:
606 606  
607 -AT+<CMD>=?  :  Get the value
608 608  
646 +[[image:image-20220610172924-5.png]]
609 609  
610 -(% style="color:#037691" %)** General Commands :**     
611 611  
612 -AT  :  Attention       
649 +(((
650 +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:
651 +)))
613 613  
614 -AT?  :  Short Help     
615 615  
616 -ATZ :  MCU Reset    
654 + [[image:image-20220610172924-6.png||height="601" width="860"]]
617 617  
618 -AT+TDC :  Application Data Transmission Interval 
619 619  
620 620  
621 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
658 +== 3.2  Set Transmit Interval Time ==
622 622  
623 -AT+APPEUI  :  Application EUI      
660 +Feature: Change LoRaWAN End Node Transmit Interval.
624 624  
625 -AT+APPKEY  :  Application Key     
662 +(% style="color:#037691" %)**AT Command: AT+TDC**
626 626  
627 -AT+APPSKEY  :  Application Session Key
664 +[[image:image-20220610173409-7.png]]
628 628  
629 -AT+DADDR :  Device Address     
630 630  
631 -AT+DEUI :  Device EUI     
667 +(((
668 +(% style="color:#037691" %)**Downlink Command: 0x01**
669 +)))
632 632  
633 -AT+NWKID  :  Network ID (You can enter this command change only after successful network connection) 
671 +(((
672 +(((
673 +Format: Command Code (0x01) followed by 3 bytes time value.
634 634  
635 -AT+NWKSKEY  : Network Session Key Joining and sending date on LoRa network  
675 +(((
676 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
677 +)))
636 636  
637 -AT+CFM :  Confirm Mode       
679 +* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
680 +* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
681 +)))
682 +)))
638 638  
639 -AT+CFS :  Confirm Status       
640 640  
641 -AT+JOIN  :  Join LoRa? Network       
642 642  
643 -AT+NJM  :  LoRa? Network Join Mode    
644 644  
645 -AT+NJS  :  LoRa? Network Join Status    
646 646  
647 -AT+RECV  :  Print Last Received Data in Raw Format
688 +== 3.3  Set Interrupt Mode ==
648 648  
649 -AT+RECVB :  Print Last Received Data in Binary Format      
650 -
651 -AT+SEND  :  Send Text Data      
652 -
653 -AT+SENB  :  Send Hexadecimal Data
654 -
655 -
656 -(% style="color:#037691" %)** LoRa Network Management :**
657 -
658 -AT+ADR  :  Adaptive Rate
659 -
660 -AT+CLASS  :  LoRa Class(Currently only support class A
661 -
662 -AT+DCS  :  Duty Cycle Setting 
663 -
664 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
665 -
666 -AT+FCD  :  Frame Counter Downlink       
667 -
668 -AT+FCU  :  Frame Counter Uplink   
669 -
670 -AT+JN1DL  :  Join Accept Delay1
671 -
672 -AT+JN2DL  :  Join Accept Delay2
673 -
674 -AT+PNM  :  Public Network Mode   
675 -
676 -AT+RX1DL  :  Receive Delay1      
677 -
678 -AT+RX2DL  :  Receive Delay2      
679 -
680 -AT+RX2DR  :  Rx2 Window Data Rate 
681 -
682 -AT+RX2FQ  :  Rx2 Window Frequency
683 -
684 -AT+TXP  :  Transmit Power
685 -
686 -
687 -(% style="color:#037691" %)** Information :**
688 -
689 -AT+RSSI  :  RSSI of the Last Received Packet   
690 -
691 -AT+SNR  :  SNR of the Last Received Packet   
692 -
693 -AT+VER  :  Image Version and Frequency Band       
694 -
695 -AT+FDR  :  Factory Data Reset
696 -
697 -AT+PORT  :  Application Port    
698 -
699 -AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
700 -
701 - AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
702 -
703 -
704 -
705 -== 3.2  Set Interrupt Mode ==
706 -
707 707  Feature, Set Interrupt mode for GPIO_EXIT.
708 708  
709 709  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
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722 722  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
723 723  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
724 724  
725 -
726 726  = 4.  FAQ =
727 727  
728 -== 4.1  What is the frequency plan for LDDS20? ==
710 +== 4.1  What is the frequency plan for LDDS75? ==
729 729  
730 -LDDS20 use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
712 +LDDS75 use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
731 731  
732 732  
733 733  
734 734  == 4.2  How to change the LoRa Frequency Bands/Region ==
735 735  
736 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.7A0200BFirmwareChangeLog"]].
718 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
737 737  When downloading the images, choose the required image file for download. ​
738 738  
739 739  
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