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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.24
edited by Xiaoling
on 2022/06/15 11:09
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

Summary

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... ... @@ -100,9 +100,6 @@
100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 -
104 -
105 -
106 106  == 1.3  Suitable Container & Liquid ==
107 107  
108 108  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -112,9 +112,6 @@
112 112  ** Pure non metal material: <10 mm
113 113  * Pure liquid without irregular deposition.
114 114  
115 -
116 -
117 -
118 118  == 1.4  Mechanical ==
119 119  
120 120  [[image:image-20220615090910-1.png]]
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204 204  * Smart liquid control solution.
205 205  * Smart liquefied gas solution.
206 206  
207 -
208 -
209 -
210 210  == 1.7  Precautions ==
211 211  
212 212  * At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
... ... @@ -213,9 +213,6 @@
213 213  * For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
214 214  * When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.
215 215  
216 -
217 -
218 -
219 219  == 1.8  Pin mapping and power on ==
220 220  
221 221  
... ... @@ -376,7 +376,6 @@
376 376  
377 377  
378 378  
379 -
380 380  === 2.3.3  Interrupt Pin ===
381 381  
382 382  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.
... ... @@ -420,7 +420,7 @@
420 420  While using TTN network, you can add the payload format to decode the payload.
421 421  
422 422  
423 -[[image:1655261164557-670.png]]
410 +[[image:1654850829385-439.png]]
424 424  
425 425  The payload decoder function for TTN V3 is here:
426 426  
... ... @@ -510,7 +510,6 @@
510 510  
511 511  
512 512  
513 -
514 514  == 2.7  ​Firmware Change Log ==
515 515  
516 516  
... ... @@ -531,6 +531,8 @@
531 531  == 2.8  Battery Analysis ==
532 532  
533 533  
520 +
521 +
534 534  === 2.8.1  Battery Type ===
535 535  
536 536  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.
... ... @@ -552,14 +552,9 @@
552 552  
553 553  
554 554  
555 -== 2.8.2  Battery Note ==
556 556  
557 -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 ===
558 558  
559 -
560 -
561 -=== 2.8.3  Replace the battery ===
562 -
563 563  (((
564 564  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.
565 565  )))
... ... @@ -574,152 +574,138 @@
574 574  
575 575  
576 576  
577 -== 2.8.4  Battery Life Analyze ==
560 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
578 578  
579 -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 +)))
580 580  
581 -[[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 +)))
582 582  
579 +(((
580 +(((
581 +
582 +)))
583 583  
584 +(((
585 +There are two kinds of commands to configure LDDS75, they are:
586 +)))
587 +)))
584 584  
585 -= 3.  Using the AT Commands =
589 +* (((
590 +(((
591 +(% style="color:#4f81bd" %)** General Commands**.
592 +)))
593 +)))
586 586  
587 587  (((
588 588  (((
589 -
597 +These commands are to configure:
590 590  )))
591 591  )))
592 592  
593 -== 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 +)))
594 594  
595 -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 +)))
596 596  
618 +(((
619 +(((
620 +
621 +)))
622 +)))
597 597  
598 -[[image:image-20220610172924-4.png||height="483" width="988"]]
624 +* (((
625 +(((
626 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
627 +)))
628 +)))
599 599  
600 -
601 -Or if you have below board, use below connection:
602 -
603 -
604 -[[image:image-20220610172924-5.png]]
605 -
606 -
607 607  (((
608 -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:
609 609  )))
634 +)))
610 610  
611 611  
612 - [[image:image-20220610172924-6.png||height="601" width="860"]]
613 613  
614 -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 ==
615 615  
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.
616 616  
617 -AT+<CMD>?  :  Help on <CMD>
642 +[[image:image-20220610172924-4.png||height="483" width="988"]]
618 618  
619 -AT+<CMD>  :  Run <CMD>
620 620  
621 -AT+<CMD>=<value>  :  Set the value
645 +Or if you have below board, use below connection:
622 622  
623 -AT+<CMD>=?  :  Get the value
624 624  
648 +[[image:image-20220610172924-5.png]]
625 625  
626 -(% style="color:#037691" %)** General Commands :**     
627 627  
628 -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 +)))
629 629  
630 -AT?  :  Short Help     
631 631  
632 -ATZ :  MCU Reset    
656 + [[image:image-20220610172924-6.png||height="601" width="860"]]
633 633  
634 -AT+TDC :  Application Data Transmission Interval 
635 635  
636 636  
637 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
660 +== 3.2  Set Transmit Interval Time ==
638 638  
639 -AT+APPEUI  :  Application EUI      
662 +Feature: Change LoRaWAN End Node Transmit Interval.
640 640  
641 -AT+APPKEY  :  Application Key     
664 +(% style="color:#037691" %)**AT Command: AT+TDC**
642 642  
643 -AT+APPSKEY  :  Application Session Key
666 +[[image:image-20220610173409-7.png]]
644 644  
645 -AT+DADDR :  Device Address     
646 646  
647 -AT+DEUI :  Device EUI     
669 +(((
670 +(% style="color:#037691" %)**Downlink Command: 0x01**
671 +)))
648 648  
649 -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.
650 650  
651 -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 +)))
652 652  
653 -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 +)))
654 654  
655 -AT+CFS :  Confirm Status       
656 656  
657 -AT+JOIN  :  Join LoRa? Network       
658 658  
659 -AT+NJM  :  LoRa? Network Join Mode    
660 660  
661 -AT+NJS  :  LoRa? Network Join Status    
662 662  
663 -AT+RECV  :  Print Last Received Data in Raw Format
690 +== 3.3  Set Interrupt Mode ==
664 664  
665 -AT+RECVB :  Print Last Received Data in Binary Format      
666 -
667 -AT+SEND  :  Send Text Data      
668 -
669 -AT+SENB  :  Send Hexadecimal Data
670 -
671 -
672 -(% style="color:#037691" %)** LoRa Network Management :**
673 -
674 -AT+ADR  :  Adaptive Rate
675 -
676 -AT+CLASS  :  LoRa Class(Currently only support class A
677 -
678 -AT+DCS  :  Duty Cycle Setting 
679 -
680 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
681 -
682 -AT+FCD  :  Frame Counter Downlink       
683 -
684 -AT+FCU  :  Frame Counter Uplink   
685 -
686 -AT+JN1DL  :  Join Accept Delay1
687 -
688 -AT+JN2DL  :  Join Accept Delay2
689 -
690 -AT+PNM  :  Public Network Mode   
691 -
692 -AT+RX1DL  :  Receive Delay1      
693 -
694 -AT+RX2DL  :  Receive Delay2      
695 -
696 -AT+RX2DR  :  Rx2 Window Data Rate 
697 -
698 -AT+RX2FQ  :  Rx2 Window Frequency
699 -
700 -AT+TXP  :  Transmit Power
701 -
702 -
703 -(% style="color:#037691" %)** Information :**
704 -
705 -AT+RSSI  :  RSSI of the Last Received Packet   
706 -
707 -AT+SNR  :  SNR of the Last Received Packet   
708 -
709 -AT+VER  :  Image Version and Frequency Band       
710 -
711 -AT+FDR  :  Factory Data Reset
712 -
713 -AT+PORT  :  Application Port    
714 -
715 -AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
716 -
717 - AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
718 -
719 -
720 -
721 -== 3.2  Set Interrupt Mode ==
722 -
723 723  Feature, Set Interrupt mode for GPIO_EXIT.
724 724  
725 725  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
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738 738  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
739 739  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
740 740  
741 -
742 -
743 743  = 4.  FAQ =
744 744  
745 -== 4.1  What is the frequency plan for LDDS20? ==
712 +== 4.1  What is the frequency plan for LDDS75? ==
746 746  
747 -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"]]
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"]]
748 748  
749 749  
750 750  
751 751  == 4.2  How to change the LoRa Frequency Bands/Region ==
752 752  
753 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.7A0200BFirmwareChangeLog"]].
720 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
754 754  When downloading the images, choose the required image file for download. ​
755 755  
756 756  
757 757  
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 +
758 758  = 5.  Trouble Shooting =
759 759  
760 760  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
... ... @@ -774,7 +774,7 @@
774 774  = 6.  Order Info =
775 775  
776 776  
777 -Part Number **:** (% style="color:blue" %)**LDDS20-XX**
750 +Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
778 778  
779 779  
780 780  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
... ... @@ -788,20 +788,18 @@
788 788  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
789 789  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
790 790  
764 +(% style="color:blue" %)**YY**(%%): Battery Option
791 791  
766 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
767 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
768 +
792 792  = 7. ​ Packing Info =
793 793  
794 794  
795 795  **Package Includes**:
796 796  
797 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
774 +* LDDS75 LoRaWAN Distance Detection Sensor x 1
798 798  
799 -
800 -(% style="color:red" %)**Note:**
801 -
802 -(% 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.
803 -
804 -
805 805  **Dimension and weight**:
806 806  
807 807  * Device Size: cm
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809 809  * Package Size / pcs : cm
810 810  * Weight / pcs : g
811 811  
812 -
813 813  = 8.  ​Support =
814 814  
815 815  * 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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