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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 174.1
edited by Xiaoling
on 2022/06/15 10:25
Change comment: Uploaded new attachment "image-20220615102527-16.png", version {1}
To version 174.9
edited by Xiaoling
on 2022/06/15 10:43
Change comment: There is no comment for this version

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... ... @@ -362,6 +362,8 @@
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 +
366 +
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.
... ... @@ -512,41 +512,40 @@
512 512  
513 513  
514 514  
515 -== 2.9  Mechanical ==
517 +== 2.8  Battery Analysis ==
516 516  
517 517  
518 -[[image:image-20220610172003-1.png]]
519 519  
520 520  
521 -[[image:image-20220610172003-2.png]]
522 +=== 2.8.1  Battery Type ===
522 522  
524 +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.
523 523  
524 524  
525 -== 2.10  Battery Analysis ==
526 -
527 -=== 2.10.1  Battery Type ===
528 -
529 -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.
530 -
531 -
532 532  The battery related documents as below:
533 533  
534 534  * (((
535 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
530 +[[Battery Dimension>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
536 536  )))
537 537  * (((
538 -[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
533 +[[Lithium-Thionyl Chloride Battery  datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]],
539 539  )))
540 540  * (((
541 -[[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]]
536 +[[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
542 542  )))
543 543  
544 - [[image:image-20220610172400-3.png]]
539 + [[image:image-20220615102527-16.png]]
545 545  
546 546  
547 547  
548 -=== 2.10.2  Replace the battery ===
543 +== 2.8.2  Battery Note ==
549 549  
545 +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.
546 +
547 +
548 +
549 +=== 2.8.3  Replace the battery ===
550 +
550 550  (((
551 551  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.
552 552  )))
... ... @@ -561,106 +561,150 @@
561 561  
562 562  
563 563  
564 -= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
565 +== 2.8.4  Battery Life Analyze ==
565 565  
566 -(((
567 -(((
568 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
569 -)))
570 -)))
567 +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:
571 571  
572 -* (((
573 -(((
574 -AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
575 -)))
576 -)))
577 -* (((
578 -(((
579 -LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
580 -)))
581 -)))
569 +[[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]]
582 582  
583 -(((
584 -(((
585 -
586 -)))
587 587  
588 -(((
589 -There are two kinds of commands to configure LDDS75, they are:
590 -)))
591 -)))
592 592  
593 -* (((
594 -(((
595 -(% style="color:#4f81bd" %)** General Commands**.
596 -)))
597 -)))
573 += 3.  Using the AT Commands =
598 598  
599 599  (((
600 600  (((
601 -These commands are to configure:
577 +
602 602  )))
603 603  )))
604 604  
605 -* (((
606 -(((
607 -General system settings like: uplink interval.
608 -)))
609 -)))
610 -* (((
611 -(((
612 -LoRaWAN protocol & radio related command.
613 -)))
614 -)))
581 +== 3.1  Access AT Commands ==
615 615  
616 -(((
617 -(((
618 -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]]
619 -)))
620 -)))
583 +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.
621 621  
622 -(((
623 -(((
624 -
625 -)))
626 -)))
627 627  
628 -* (((
629 -(((
630 -(% style="color:#4f81bd" %)** Commands special design for LDDS75**
631 -)))
632 -)))
586 +[[image:image-20220610172924-4.png||height="483" width="988"]]
633 633  
588 +
589 +Or if you have below board, use below connection:
590 +
591 +
592 +[[image:image-20220610172924-5.png]]
593 +
594 +
634 634  (((
635 -(((
636 -These commands only valid for LDDS75, as below:
596 +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:
637 637  )))
638 -)))
639 639  
640 640  
600 + [[image:image-20220610172924-6.png||height="601" width="860"]]
641 641  
642 -== 3.1  Access AT Commands ==
602 +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/]].
643 643  
644 -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.
645 645  
646 -[[image:image-20220610172924-4.png||height="483" width="988"]]
605 +AT+<CMD>?  :  Help on <CMD>
647 647  
607 +AT+<CMD>  :  Run <CMD>
648 648  
649 -Or if you have below board, use below connection:
609 +AT+<CMD>=<value>  :  Set the value
650 650  
611 +AT+<CMD>=?  :  Get the value
651 651  
652 -[[image:image-20220610172924-5.png]]
653 653  
614 +**General Commands**      
654 654  
655 -(((
656 -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:
657 -)))
616 +AT                    : Attention       
658 658  
618 +AT?                            : Short Help     
659 659  
660 - [[image:image-20220610172924-6.png||height="601" width="860"]]
620 +ATZ                            : MCU Reset    
661 661  
622 +AT+TDC           : Application Data Transmission Interval 
662 662  
663 663  
625 +**Keys, IDs and EUIs management**
626 +
627 +AT+APPEUI              : Application EUI      
628 +
629 +AT+APPKEY              : Application Key     
630 +
631 +AT+APPSKEY            : Application Session Key
632 +
633 +AT+DADDR              : Device Address     
634 +
635 +AT+DEUI                   : Device EUI     
636 +
637 +AT+NWKID               : Network ID (You can enter this command change only after successful network connection) 
638 +
639 +AT+NWKSKEY          : Network Session Key Joining and sending date on LoRa network  
640 +
641 +AT+CFM          : Confirm Mode       
642 +
643 +AT+CFS                     : Confirm Status       
644 +
645 +AT+JOIN          : Join LoRa? Network       
646 +
647 +AT+NJM          : LoRa? Network Join Mode    
648 +
649 +AT+NJS                     : LoRa? Network Join Status    
650 +
651 +AT+RECV                  : Print Last Received Data in Raw Format
652 +
653 +AT+RECVB                : Print Last Received Data in Binary Format      
654 +
655 +AT+SEND                  : Send Text Data      
656 +
657 +AT+SENB                  : Send Hexadecimal Data
658 +
659 +
660 +**LoRa Network Management**
661 +
662 +AT+ADR          : Adaptive Rate
663 +
664 +AT+CLASS                : LoRa Class(Currently only support class A
665 +
666 +AT+DCS           : Duty Cycle Setting 
667 +
668 +AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
669 +
670 +AT+FCD           : Frame Counter Downlink       
671 +
672 +AT+FCU           : Frame Counter Uplink   
673 +
674 +AT+JN1DL                : Join Accept Delay1
675 +
676 +AT+JN2DL                : Join Accept Delay2
677 +
678 +AT+PNM                   : Public Network Mode   
679 +
680 +AT+RX1DL                : Receive Delay1      
681 +
682 +AT+RX2DL                : Receive Delay2      
683 +
684 +AT+RX2DR               : Rx2 Window Data Rate 
685 +
686 +AT+RX2FQ               : Rx2 Window Frequency
687 +
688 +AT+TXP           : Transmit Power
689 +
690 +
691 +**Information** 
692 +
693 +AT+RSSI           : RSSI of the Last Received Packet   
694 +
695 +AT+SNR           : SNR of the Last Received Packet   
696 +
697 +AT+VER           : Image Version and Frequency Band       
698 +
699 +AT+FDR           : Factory Data Reset
700 +
701 +AT+PORT                  : Application Port    
702 +
703 +AT+CHS           : Get or Set Frequency (Unit: Hz) for Single Channel Mode
704 +
705 + AT+CHE                   : Get or Set eight channels mode, Only for US915, AU915, CN470
706 +
707 +
708 +
664 664  == 3.2  Set Transmit Interval Time ==
665 665  
666 666  Feature: Change LoRaWAN End Node Transmit Interval.