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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 174.2
edited by Xiaoling
on 2022/06/15 10:28
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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... ... @@ -362,6 +362,7 @@
362 362  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
363 363  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
364 364  
365 +
365 365  === 2.3.3  Interrupt Pin ===
366 366  
367 367  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.
... ... @@ -405,7 +405,7 @@
405 405  While using TTN network, you can add the payload format to decode the payload.
406 406  
407 407  
408 -[[image:1654850829385-439.png]]
409 +[[image:1655261164557-670.png]]
409 409  
410 410  The payload decoder function for TTN V3 is here:
411 411  
... ... @@ -494,7 +494,6 @@
494 494  * Blink once when device transmit a packet.
495 495  
496 496  
497 -
498 498  == 2.7  ​Firmware Change Log ==
499 499  
500 500  
... ... @@ -525,7 +525,7 @@
525 525  The battery related documents as below:
526 526  
527 527  * (((
528 -[[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/]],
529 529  )))
530 530  * (((
531 531  [[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
... ... @@ -538,9 +538,14 @@
538 538  
539 539  
540 540  
541 +== 2.8.2  Battery Note ==
541 541  
542 -=== 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.
543 543  
545 +
546 +
547 +=== 2.8.3  Replace the battery ===
548 +
544 544  (((
545 545  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.
546 546  )))
... ... @@ -555,138 +555,152 @@
555 555  
556 556  
557 557  
558 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
563 +== 2.8.4  Battery Life Analyze ==
559 559  
560 -(((
561 -(((
562 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
563 -)))
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:
565 565  
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 -)))
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]]
576 576  
577 -(((
578 -(((
579 -
580 -)))
581 581  
582 -(((
583 -There are two kinds of commands to configure LDDS75, they are:
584 -)))
585 -)))
586 586  
587 -* (((
588 -(((
589 -(% style="color:#4f81bd" %)** General Commands**.
590 -)))
591 -)))
571 += 3.  Using the AT Commands =
592 592  
593 593  (((
594 594  (((
595 -These commands are to configure:
575 +
596 596  )))
597 597  )))
598 598  
599 -* (((
600 -(((
601 -General system settings like: uplink interval.
602 -)))
603 -)))
604 -* (((
605 -(((
606 -LoRaWAN protocol & radio related command.
607 -)))
608 -)))
579 +== 3.1  Access AT Commands ==
609 609  
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 -)))
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.
615 615  
616 -(((
617 -(((
618 -
619 -)))
620 -)))
621 621  
622 -* (((
623 -(((
624 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
625 -)))
626 -)))
584 +[[image:image-20220610172924-4.png||height="483" width="988"]]
627 627  
586 +
587 +Or if you have below board, use below connection:
588 +
589 +
590 +[[image:image-20220610172924-5.png]]
591 +
592 +
628 628  (((
629 -(((
630 -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:
631 631  )))
632 -)))
633 633  
634 634  
598 + [[image:image-20220610172924-6.png||height="601" width="860"]]
635 635  
636 -== 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/]].
637 637  
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.
639 639  
640 -[[image:image-20220610172924-4.png||height="483" width="988"]]
603 +AT+<CMD>?  :  Help on <CMD>
641 641  
605 +AT+<CMD>  :  Run <CMD>
642 642  
643 -Or if you have below board, use below connection:
607 +AT+<CMD>=<value>  :  Set the value
644 644  
609 +AT+<CMD>=?  :  Get the value
645 645  
646 -[[image:image-20220610172924-5.png]]
647 647  
612 +(% style="color:#037691" %)** General Commands :**     
648 648  
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 -)))
614 +AT  :  Attention       
652 652  
616 +AT?  :  Short Help     
653 653  
654 - [[image:image-20220610172924-6.png||height="601" width="860"]]
618 +ATZ :  MCU Reset    
655 655  
620 +AT+TDC :  Application Data Transmission Interval 
656 656  
657 657  
658 -== 3.2  Set Transmit Interval Time ==
623 +(% style="color:#037691" %)** Keys, IDs and EUIs management :**
659 659  
660 -Feature: Change LoRaWAN End Node Transmit Interval.
625 +AT+APPEUI  :  Application EUI      
661 661  
662 -(% style="color:#037691" %)**AT Command: AT+TDC**
627 +AT+APPKEY  :  Application Key     
663 663  
664 -[[image:image-20220610173409-7.png]]
629 +AT+APPSKEY  :  Application Session Key
665 665  
631 +AT+DADDR :  Device Address     
666 666  
667 -(((
668 -(% style="color:#037691" %)**Downlink Command: 0x01**
669 -)))
633 +AT+DEUI :  Device EUI     
670 670  
671 -(((
672 -(((
673 -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) 
674 674  
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 -)))
637 +AT+NWKSKEY  : Network Session Key Joining and sending date on LoRa network  
678 678  
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 -)))
639 +AT+CFM :  Confirm Mode       
683 683  
641 +AT+CFS :  Confirm Status       
684 684  
643 +AT+JOIN  :  Join LoRa? Network       
685 685  
645 +AT+NJM  :  LoRa? Network Join Mode    
686 686  
647 +AT+NJS  :  LoRa? Network Join Status    
687 687  
688 -== 3.3  Set Interrupt Mode ==
649 +AT+RECV  :  Print Last Received Data in Raw Format
689 689  
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 +
690 690  Feature, Set Interrupt mode for GPIO_EXIT.
691 691  
692 692  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
... ... @@ -705,17 +705,19 @@
705 705  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
706 706  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
707 707  
727 +
728 +
708 708  = 4.  FAQ =
709 709  
710 -== 4.1  What is the frequency plan for LDDS75? ==
731 +== 4.1  What is the frequency plan for LDDS20? ==
711 711  
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"]]
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"]]
713 713  
714 714  
715 715  
716 716  == 4.2  How to change the LoRa Frequency Bands/Region ==
717 717  
718 -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"]].
719 719  When downloading the images, choose the required image file for download. ​
720 720  
721 721  
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