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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 174.4
edited by Xiaoling
on 2022/06/15 10:30
Change comment: There is no comment for this version
To version 175.10
edited by Xiaoling
on 2022/06/15 10:58
Change comment: There is no comment for this version

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... ... @@ -363,7 +363,6 @@
363 363  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
364 364  
365 365  
366 -
367 367  === 2.3.3  Interrupt Pin ===
368 368  
369 369  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.
... ... @@ -407,7 +407,7 @@
407 407  While using TTN network, you can add the payload format to decode the payload.
408 408  
409 409  
410 -[[image:1654850829385-439.png]]
409 +[[image:1655261164557-670.png]]
411 411  
412 412  The payload decoder function for TTN V3 is here:
413 413  
... ... @@ -496,7 +496,6 @@
496 496  * Blink once when device transmit a packet.
497 497  
498 498  
499 -
500 500  == 2.7  ​Firmware Change Log ==
501 501  
502 502  
... ... @@ -527,7 +527,7 @@
527 527  The battery related documents as below:
528 528  
529 529  * (((
530 -[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/le=LSN50-Battery-Dimension.pdf]],
528 +[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
531 531  )))
532 532  * (((
533 533  [[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
... ... @@ -540,9 +540,14 @@
540 540  
541 541  
542 542  
541 +== 2.8.2  Battery Note ==
543 543  
544 -=== 2.10.2  Replace the battery ===
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.
545 545  
545 +
546 +
547 +=== 2.8.3  Replace the battery ===
548 +
546 546  (((
547 547  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.
548 548  )))
... ... @@ -557,138 +557,152 @@
557 557  
558 558  
559 559  
560 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
563 +== 2.8.4  Battery Life Analyze ==
561 561  
562 -(((
563 -(((
564 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
565 -)))
566 -)))
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:
567 567  
568 -* (((
569 -(((
570 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
571 -)))
572 -)))
573 -* (((
574 -(((
575 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
576 -)))
577 -)))
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]]
578 578  
579 -(((
580 -(((
581 -
582 -)))
583 583  
584 -(((
585 -There are two kinds of commands to configure LDDS75, they are:
586 -)))
587 -)))
588 588  
589 -* (((
590 -(((
591 -(% style="color:#4f81bd" %)** General Commands**.
592 -)))
593 -)))
571 += 3.  Using the AT Commands =
594 594  
595 595  (((
596 596  (((
597 -These commands are to configure:
575 +
598 598  )))
599 599  )))
600 600  
601 -* (((
602 -(((
603 -General system settings like: uplink interval.
604 -)))
605 -)))
606 -* (((
607 -(((
608 -LoRaWAN protocol & radio related command.
609 -)))
610 -)))
579 +== 3.1  Access AT Commands ==
611 611  
612 -(((
613 -(((
614 -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]]
615 -)))
616 -)))
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.
617 617  
618 -(((
619 -(((
620 -
621 -)))
622 -)))
623 623  
624 -* (((
625 -(((
626 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
627 -)))
628 -)))
584 +[[image:image-20220610172924-4.png||height="483" width="988"]]
629 629  
586 +
587 +Or if you have below board, use below connection:
588 +
589 +
590 +[[image:image-20220610172924-5.png]]
591 +
592 +
630 630  (((
631 -(((
632 -These commands only valid for LDDS75, as below:
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:
633 633  )))
634 -)))
635 635  
636 636  
598 + [[image:image-20220610172924-6.png||height="601" width="860"]]
637 637  
638 -== 3.1  Access AT Commands ==
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/]].
639 639  
640 -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.
641 641  
642 -[[image:image-20220610172924-4.png||height="483" width="988"]]
603 +AT+<CMD>?  :  Help on <CMD>
643 643  
605 +AT+<CMD>  :  Run <CMD>
644 644  
645 -Or if you have below board, use below connection:
607 +AT+<CMD>=<value>  :  Set the value
646 646  
609 +AT+<CMD>=?  :  Get the value
647 647  
648 -[[image:image-20220610172924-5.png]]
649 649  
612 +(% style="color:#037691" %)** General Commands :**     
650 650  
651 -(((
652 -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:
653 -)))
614 +AT  :  Attention       
654 654  
616 +AT?  :  Short Help     
655 655  
656 - [[image:image-20220610172924-6.png||height="601" width="860"]]
618 +ATZ :  MCU Reset    
657 657  
620 +AT+TDC :  Application Data Transmission Interval 
658 658  
659 659  
660 -== 3.2  Set Transmit Interval Time ==
623 +(% style="color:#037691" %)** Keys, IDs and EUIs management :**
661 661  
662 -Feature: Change LoRaWAN End Node Transmit Interval.
625 +AT+APPEUI  :  Application EUI      
663 663  
664 -(% style="color:#037691" %)**AT Command: AT+TDC**
627 +AT+APPKEY  :  Application Key     
665 665  
666 -[[image:image-20220610173409-7.png]]
629 +AT+APPSKEY  :  Application Session Key
667 667  
631 +AT+DADDR :  Device Address     
668 668  
669 -(((
670 -(% style="color:#037691" %)**Downlink Command: 0x01**
671 -)))
633 +AT+DEUI :  Device EUI     
672 672  
673 -(((
674 -(((
675 -Format: Command Code (0x01) followed by 3 bytes time value.
635 +AT+NWKID  :  Network ID (You can enter this command change only after successful network connection) 
676 676  
677 -(((
678 -If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
679 -)))
637 +AT+NWKSKEY  : Network Session Key Joining and sending date on LoRa network  
680 680  
681 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
682 -* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
683 -)))
684 -)))
639 +AT+CFM :  Confirm Mode       
685 685  
641 +AT+CFS :  Confirm Status       
686 686  
643 +AT+JOIN  :  Join LoRa? Network       
687 687  
645 +AT+NJM  :  LoRa? Network Join Mode    
688 688  
647 +AT+NJS  :  LoRa? Network Join Status    
689 689  
690 -== 3.3  Set Interrupt Mode ==
649 +AT+RECV  :  Print Last Received Data in Raw Format
691 691  
651 +AT+RECVB :  Print Last Received Data in Binary Format      
652 +
653 +AT+SEND  :  Send Text Data      
654 +
655 +AT+SENB  :  Send Hexadecimal Data
656 +
657 +
658 +(% style="color:#037691" %)** LoRa Network Management :**
659 +
660 +AT+ADR  :  Adaptive Rate
661 +
662 +AT+CLASS  :  LoRa Class(Currently only support class A
663 +
664 +AT+DCS  :  Duty Cycle Setting 
665 +
666 +AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
667 +
668 +AT+FCD  :  Frame Counter Downlink       
669 +
670 +AT+FCU  :  Frame Counter Uplink   
671 +
672 +AT+JN1DL  :  Join Accept Delay1
673 +
674 +AT+JN2DL  :  Join Accept Delay2
675 +
676 +AT+PNM  :  Public Network Mode   
677 +
678 +AT+RX1DL  :  Receive Delay1      
679 +
680 +AT+RX2DL  :  Receive Delay2      
681 +
682 +AT+RX2DR  :  Rx2 Window Data Rate 
683 +
684 +AT+RX2FQ  :  Rx2 Window Frequency
685 +
686 +AT+TXP  :  Transmit Power
687 +
688 +
689 +(% style="color:#037691" %)** Information :**
690 +
691 +AT+RSSI  :  RSSI of the Last Received Packet   
692 +
693 +AT+SNR  :  SNR of the Last Received Packet   
694 +
695 +AT+VER  :  Image Version and Frequency Band       
696 +
697 +AT+FDR  :  Factory Data Reset
698 +
699 +AT+PORT  :  Application Port    
700 +
701 +AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
702 +
703 + AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
704 +
705 +
706 +
707 +== 3.2  Set Interrupt Mode ==
708 +
692 692  Feature, Set Interrupt mode for GPIO_EXIT.
693 693  
694 694  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
... ... @@ -707,17 +707,19 @@
707 707  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
708 708  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
709 709  
727 +
728 +
710 710  = 4.  FAQ =
711 711  
712 -== 4.1  What is the frequency plan for LDDS75? ==
731 +== 4.1  What is the frequency plan for LDDS20? ==
713 713  
714 -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"]]
733 +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"]]
715 715  
716 716  
717 717  
718 718  == 4.2  How to change the LoRa Frequency Bands/Region ==
719 719  
720 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
739 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.7A0200BFirmwareChangeLog"]].
721 721  When downloading the images, choose the required image file for download. ​
722 722  
723 723  
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