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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 174.5
edited by Xiaoling
on 2022/06/15 10:31
Change comment: There is no comment for this version
To version 175.19
edited by Xiaoling
on 2022/06/15 11:08
Change comment: There is no comment for this version

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... ... @@ -100,6 +100,9 @@
100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 +
104 +
105 +
103 103  == 1.3  Suitable Container & Liquid ==
104 104  
105 105  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -109,6 +109,9 @@
109 109  ** Pure non metal material: <10 mm
110 110  * Pure liquid without irregular deposition.
111 111  
115 +
116 +
117 +
112 112  == 1.4  Mechanical ==
113 113  
114 114  [[image:image-20220615090910-1.png]]
... ... @@ -362,8 +362,6 @@
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 -
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]]
414 +[[image:1655261164557-670.png]]
411 411  
412 412  The payload decoder function for TTN V3 is here:
413 413  
... ... @@ -495,8 +495,6 @@
495 495  * Solid ON for 5 seconds once device successful Join the network.
496 496  * Blink once when device transmit a packet.
497 497  
498 -
499 -
500 500  == 2.7  ​Firmware Change Log ==
501 501  
502 502  
... ... @@ -540,9 +540,14 @@
540 540  
541 541  
542 542  
545 +== 2.8.2  Battery Note ==
543 543  
544 -=== 2.10.2  Replace the battery ===
547 +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  
549 +
550 +
551 +=== 2.8.3  Replace the battery ===
552 +
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 =
567 +== 2.8.4  Battery Life Analyze ==
561 561  
562 -(((
563 -(((
564 -Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
565 -)))
566 -)))
569 +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 -)))
571 +[[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 -)))
575 += 3.  Using the AT Commands =
594 594  
595 595  (((
596 596  (((
597 -These commands are to configure:
579 +
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 -)))
583 +== 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 -)))
585 +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 -)))
588 +[[image:image-20220610172924-4.png||height="483" width="988"]]
629 629  
590 +
591 +Or if you have below board, use below connection:
592 +
593 +
594 +[[image:image-20220610172924-5.png]]
595 +
596 +
630 630  (((
631 -(((
632 -These commands only valid for LDDS75, as below:
598 +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  
602 + [[image:image-20220610172924-6.png||height="601" width="860"]]
637 637  
638 -== 3.1  Access AT Commands ==
604 +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"]]
607 +AT+<CMD>?  :  Help on <CMD>
643 643  
609 +AT+<CMD>  :  Run <CMD>
644 644  
645 -Or if you have below board, use below connection:
611 +AT+<CMD>=<value>  :  Set the value
646 646  
613 +AT+<CMD>=?  :  Get the value
647 647  
648 -[[image:image-20220610172924-5.png]]
649 649  
616 +(% 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 -)))
618 +AT  :  Attention       
654 654  
620 +AT?  :  Short Help     
655 655  
656 - [[image:image-20220610172924-6.png||height="601" width="860"]]
622 +ATZ :  MCU Reset    
657 657  
624 +AT+TDC :  Application Data Transmission Interval 
658 658  
659 659  
660 -== 3.2  Set Transmit Interval Time ==
627 +(% style="color:#037691" %)** Keys, IDs and EUIs management :**
661 661  
662 -Feature: Change LoRaWAN End Node Transmit Interval.
629 +AT+APPEUI  :  Application EUI      
663 663  
664 -(% style="color:#037691" %)**AT Command: AT+TDC**
631 +AT+APPKEY  :  Application Key     
665 665  
666 -[[image:image-20220610173409-7.png]]
633 +AT+APPSKEY  :  Application Session Key
667 667  
635 +AT+DADDR :  Device Address     
668 668  
669 -(((
670 -(% style="color:#037691" %)**Downlink Command: 0x01**
671 -)))
637 +AT+DEUI :  Device EUI     
672 672  
673 -(((
674 -(((
675 -Format: Command Code (0x01) followed by 3 bytes time value.
639 +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 -)))
641 +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 -)))
643 +AT+CFM :  Confirm Mode       
685 685  
645 +AT+CFS :  Confirm Status       
686 686  
647 +AT+JOIN  :  Join LoRa? Network       
687 687  
649 +AT+NJM  :  LoRa? Network Join Mode    
688 688  
651 +AT+NJS  :  LoRa? Network Join Status    
689 689  
690 -== 3.3  Set Interrupt Mode ==
653 +AT+RECV  :  Print Last Received Data in Raw Format
691 691  
655 +AT+RECVB :  Print Last Received Data in Binary Format      
656 +
657 +AT+SEND  :  Send Text Data      
658 +
659 +AT+SENB  :  Send Hexadecimal Data
660 +
661 +
662 +(% style="color:#037691" %)** LoRa Network Management :**
663 +
664 +AT+ADR  :  Adaptive Rate
665 +
666 +AT+CLASS  :  LoRa Class(Currently only support class A
667 +
668 +AT+DCS  :  Duty Cycle Setting 
669 +
670 +AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
671 +
672 +AT+FCD  :  Frame Counter Downlink       
673 +
674 +AT+FCU  :  Frame Counter Uplink   
675 +
676 +AT+JN1DL  :  Join Accept Delay1
677 +
678 +AT+JN2DL  :  Join Accept Delay2
679 +
680 +AT+PNM  :  Public Network Mode   
681 +
682 +AT+RX1DL  :  Receive Delay1      
683 +
684 +AT+RX2DL  :  Receive Delay2      
685 +
686 +AT+RX2DR  :  Rx2 Window Data Rate 
687 +
688 +AT+RX2FQ  :  Rx2 Window Frequency
689 +
690 +AT+TXP  :  Transmit Power
691 +
692 +
693 +(% style="color:#037691" %)** Information :**
694 +
695 +AT+RSSI  :  RSSI of the Last Received Packet   
696 +
697 +AT+SNR  :  SNR of the Last Received Packet   
698 +
699 +AT+VER  :  Image Version and Frequency Band       
700 +
701 +AT+FDR  :  Factory Data Reset
702 +
703 +AT+PORT  :  Application Port    
704 +
705 +AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
706 +
707 + AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
708 +
709 +
710 +
711 +== 3.2  Set Interrupt Mode ==
712 +
692 692  Feature, Set Interrupt mode for GPIO_EXIT.
693 693  
694 694  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
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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  
731 +
732 +
710 710  = 4.  FAQ =
711 711  
712 -== 4.1  What is the frequency plan for LDDS75? ==
735 +== 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"]]
737 +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"]].
743 +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  
724 724  
725 -== 4.3  Can I use LDDS75 in condensation environment? ==
726 -
727 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
728 -
729 -
730 -
731 731  = 5.  Trouble Shooting =
732 732  
733 733  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
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747 747  = 6.  Order Info =
748 748  
749 749  
750 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
767 +Part Number **:** (% style="color:blue" %)**LDDS20-XX**
751 751  
752 752  
753 753  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
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761 761  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
762 762  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
763 763  
764 -(% style="color:blue" %)**YY**(%%): Battery Option
765 765  
766 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
767 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
768 -
769 769  = 7. ​ Packing Info =
770 770  
771 771  
772 772  **Package Includes**:
773 773  
774 -* LDDS75 LoRaWAN Distance Detection Sensor x 1
787 +* LDDS20 LoRaWAN Liquid Level Sensor x 1
775 775  
789 +
790 +(% style="color:red" %)**Note:**
791 +
792 +(% style="color:red" %)**Ultrasonic coupling paste**(%%) and(% style="color:red" %)** Eproxy AB glue**(%%) are subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
793 +
794 +
776 776  **Dimension and weight**:
777 777  
778 778  * Device Size: cm
... ... @@ -780,6 +780,7 @@
780 780  * Package Size / pcs : cm
781 781  * Weight / pcs : g
782 782  
802 +
783 783  = 8.  ​Support =
784 784  
785 785  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
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