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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.8
edited by Xiaoling
on 2022/06/15 10:55
Change comment: There is no comment for this version
To version 174.5
edited by Xiaoling
on 2022/06/15 10:31
Change comment: There is no comment for this version

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... ... @@ -363,6 +363,7 @@
363 363  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
364 364  
365 365  
366 +
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]]
410 +[[image:1654850829385-439.png]]
410 410  
411 411  The payload decoder function for TTN V3 is here:
412 412  
... ... @@ -495,6 +495,7 @@
495 495  * Blink once when device transmit a packet.
496 496  
497 497  
499 +
498 498  == 2.7  ​Firmware Change Log ==
499 499  
500 500  
... ... @@ -538,14 +538,9 @@
538 538  
539 539  
540 540  
541 -== 2.8.2  Battery Note ==
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.
544 +=== 2.10.2  Replace the battery ===
544 544  
545 -
546 -
547 -=== 2.8.3  Replace the battery ===
548 -
549 549  (((
550 550  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.
551 551  )))
... ... @@ -560,152 +560,138 @@
560 560  
561 561  
562 562  
563 -== 2.8.4  Battery Life Analyze ==
560 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
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:
562 +(((
563 +(((
564 +Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
565 +)))
566 +)))
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]]
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 +)))
568 568  
579 +(((
580 +(((
581 +
582 +)))
569 569  
584 +(((
585 +There are two kinds of commands to configure LDDS75, they are:
586 +)))
587 +)))
570 570  
571 -= 3.  Using the AT Commands =
589 +* (((
590 +(((
591 +(% style="color:#4f81bd" %)** General Commands**.
592 +)))
593 +)))
572 572  
573 573  (((
574 574  (((
575 -
597 +These commands are to configure:
576 576  )))
577 577  )))
578 578  
579 -== 3.1  Access AT Commands ==
601 +* (((
602 +(((
603 +General system settings like: uplink interval.
604 +)))
605 +)))
606 +* (((
607 +(((
608 +LoRaWAN protocol & radio related command.
609 +)))
610 +)))
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.
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 +)))
582 582  
618 +(((
619 +(((
620 +
621 +)))
622 +)))
583 583  
584 -[[image:image-20220610172924-4.png||height="483" width="988"]]
624 +* (((
625 +(((
626 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
627 +)))
628 +)))
585 585  
586 -
587 -Or if you have below board, use below connection:
588 -
589 -
590 -[[image:image-20220610172924-5.png]]
591 -
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:
631 +(((
632 +These commands only valid for LDDS75, as below:
595 595  )))
634 +)))
596 596  
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/]].
638 +== 3.1  Access AT Commands ==
601 601  
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.
602 602  
603 -AT+<CMD>?  :  Help on <CMD>
642 +[[image:image-20220610172924-4.png||height="483" width="988"]]
604 604  
605 -AT+<CMD>  :  Run <CMD>
606 606  
607 -AT+<CMD>=<value>  :  Set the value
645 +Or if you have below board, use below connection:
608 608  
609 -AT+<CMD>=?  :  Get the value
610 610  
648 +[[image:image-20220610172924-5.png]]
611 611  
612 -(% style="color:#037691" %)** General Commands :**     
613 613  
614 -AT  :  Attention       
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 +)))
615 615  
616 -AT?  :  Short Help     
617 617  
618 -ATZ :  MCU Reset    
656 + [[image:image-20220610172924-6.png||height="601" width="860"]]
619 619  
620 -AT+TDC :  Application Data Transmission Interval 
621 621  
622 622  
623 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
660 +== 3.2  Set Transmit Interval Time ==
624 624  
625 -AT+APPEUI  :  Application EUI      
662 +Feature: Change LoRaWAN End Node Transmit Interval.
626 626  
627 -AT+APPKEY  :  Application Key     
664 +(% style="color:#037691" %)**AT Command: AT+TDC**
628 628  
629 -AT+APPSKEY  :  Application Session Key
666 +[[image:image-20220610173409-7.png]]
630 630  
631 -AT+DADDR :  Device Address     
632 632  
633 -AT+DEUI :  Device EUI     
669 +(((
670 +(% style="color:#037691" %)**Downlink Command: 0x01**
671 +)))
634 634  
635 -AT+NWKID  :  Network ID (You can enter this command change only after successful network connection) 
673 +(((
674 +(((
675 +Format: Command Code (0x01) followed by 3 bytes time value.
636 636  
637 -AT+NWKSKEY  : Network Session Key Joining and sending date on LoRa network  
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 +)))
638 638  
639 -AT+CFM :  Confirm Mode       
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 +)))
640 640  
641 -AT+CFS :  Confirm Status       
642 642  
643 -AT+JOIN  :  Join LoRa? Network       
644 644  
645 -AT+NJM  :  LoRa? Network Join Mode    
646 646  
647 -AT+NJS  :  LoRa? Network Join Status    
648 648  
649 -AT+RECV  :  Print Last Received Data in Raw Format
690 +== 3.3  Set Interrupt Mode ==
650 650  
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 -
709 709  Feature, Set Interrupt mode for GPIO_EXIT.
710 710  
711 711  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
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724 724  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
725 725  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
726 726  
727 -
728 -
729 729  = 4.  FAQ =
730 730  
731 731  == 4.1  What is the frequency plan for LDDS75? ==
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1 -XWiki.Xiaoling
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