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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.23
edited by Xiaoling
on 2022/06/15 11:09
Change comment: There is no comment for this version
To version 174.7
edited by Xiaoling
on 2022/06/15 10:34
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]]
... ... @@ -204,9 +204,6 @@
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  
... ... @@ -584,144 +584,138 @@
584 584  
585 585  
586 586  
587 -= 3.  Using the AT Commands =
573 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
588 588  
589 589  (((
590 590  (((
591 -
577 +Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
592 592  )))
593 593  )))
594 594  
595 -== 3.1  Access AT Commands ==
581 +* (((
582 +(((
583 +AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
584 +)))
585 +)))
586 +* (((
587 +(((
588 +LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
589 +)))
590 +)))
596 596  
597 -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.
592 +(((
593 +(((
594 +
595 +)))
598 598  
597 +(((
598 +There are two kinds of commands to configure LDDS75, they are:
599 +)))
600 +)))
599 599  
600 -[[image:image-20220610172924-4.png||height="483" width="988"]]
602 +* (((
603 +(((
604 +(% style="color:#4f81bd" %)** General Commands**.
605 +)))
606 +)))
601 601  
608 +(((
609 +(((
610 +These commands are to configure:
611 +)))
612 +)))
602 602  
603 -Or if you have below board, use below connection:
614 +* (((
615 +(((
616 +General system settings like: uplink interval.
617 +)))
618 +)))
619 +* (((
620 +(((
621 +LoRaWAN protocol & radio related command.
622 +)))
623 +)))
604 604  
625 +(((
626 +(((
627 +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]]
628 +)))
629 +)))
605 605  
606 -[[image:image-20220610172924-5.png]]
631 +(((
632 +(((
633 +
634 +)))
635 +)))
607 607  
637 +* (((
638 +(((
639 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
640 +)))
641 +)))
608 608  
609 609  (((
610 -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:
644 +(((
645 +These commands only valid for LDDS75, as below:
611 611  )))
647 +)))
612 612  
613 613  
614 - [[image:image-20220610172924-6.png||height="601" width="860"]]
615 615  
616 -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/]].
651 +== 3.1  Access AT Commands ==
617 617  
653 +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.
618 618  
619 -AT+<CMD>?  :  Help on <CMD>
655 +[[image:image-20220610172924-4.png||height="483" width="988"]]
620 620  
621 -AT+<CMD>  :  Run <CMD>
622 622  
623 -AT+<CMD>=<value>  :  Set the value
658 +Or if you have below board, use below connection:
624 624  
625 -AT+<CMD>=?  :  Get the value
626 626  
661 +[[image:image-20220610172924-5.png]]
627 627  
628 -(% style="color:#037691" %)** General Commands :**     
629 629  
630 -AT  :  Attention       
664 +(((
665 +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:
666 +)))
631 631  
632 -AT?  :  Short Help     
633 633  
634 -ATZ :  MCU Reset    
669 + [[image:image-20220610172924-6.png||height="601" width="860"]]
635 635  
636 -AT+TDC :  Application Data Transmission Interval 
637 637  
638 638  
639 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
673 +== 3.2  Set Transmit Interval Time ==
640 640  
641 -AT+APPEUI  :  Application EUI      
675 +Feature: Change LoRaWAN End Node Transmit Interval.
642 642  
643 -AT+APPKEY  :  Application Key     
677 +(% style="color:#037691" %)**AT Command: AT+TDC**
644 644  
645 -AT+APPSKEY  :  Application Session Key
679 +[[image:image-20220610173409-7.png]]
646 646  
647 -AT+DADDR :  Device Address     
648 648  
649 -AT+DEUI :  Device EUI     
682 +(((
683 +(% style="color:#037691" %)**Downlink Command: 0x01**
684 +)))
650 650  
651 -AT+NWKID  :  Network ID (You can enter this command change only after successful network connection) 
686 +(((
687 +(((
688 +Format: Command Code (0x01) followed by 3 bytes time value.
652 652  
653 -AT+NWKSKEY  : Network Session Key Joining and sending date on LoRa network  
690 +(((
691 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
692 +)))
654 654  
655 -AT+CFM :  Confirm Mode       
694 +* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
695 +* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
696 +)))
697 +)))
656 656  
657 -AT+CFS :  Confirm Status       
658 658  
659 -AT+JOIN  :  Join LoRa? Network       
660 660  
661 -AT+NJM  :  LoRa? Network Join Mode    
662 662  
663 -AT+NJS  :  LoRa? Network Join Status    
664 664  
665 -AT+RECV  :  Print Last Received Data in Raw Format
703 +== 3.3  Set Interrupt Mode ==
666 666  
667 -AT+RECVB :  Print Last Received Data in Binary Format      
668 -
669 -AT+SEND  :  Send Text Data      
670 -
671 -AT+SENB  :  Send Hexadecimal Data
672 -
673 -
674 -(% style="color:#037691" %)** LoRa Network Management :**
675 -
676 -AT+ADR  :  Adaptive Rate
677 -
678 -AT+CLASS  :  LoRa Class(Currently only support class A
679 -
680 -AT+DCS  :  Duty Cycle Setting 
681 -
682 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
683 -
684 -AT+FCD  :  Frame Counter Downlink       
685 -
686 -AT+FCU  :  Frame Counter Uplink   
687 -
688 -AT+JN1DL  :  Join Accept Delay1
689 -
690 -AT+JN2DL  :  Join Accept Delay2
691 -
692 -AT+PNM  :  Public Network Mode   
693 -
694 -AT+RX1DL  :  Receive Delay1      
695 -
696 -AT+RX2DL  :  Receive Delay2      
697 -
698 -AT+RX2DR  :  Rx2 Window Data Rate 
699 -
700 -AT+RX2FQ  :  Rx2 Window Frequency
701 -
702 -AT+TXP  :  Transmit Power
703 -
704 -
705 -(% style="color:#037691" %)** Information :**
706 -
707 -AT+RSSI  :  RSSI of the Last Received Packet   
708 -
709 -AT+SNR  :  SNR of the Last Received Packet   
710 -
711 -AT+VER  :  Image Version and Frequency Band       
712 -
713 -AT+FDR  :  Factory Data Reset
714 -
715 -AT+PORT  :  Application Port    
716 -
717 -AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
718 -
719 - AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
720 -
721 -
722 -
723 -== 3.2  Set Interrupt Mode ==
724 -
725 725  Feature, Set Interrupt mode for GPIO_EXIT.
726 726  
727 727  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
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740 740  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
741 741  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
742 742  
743 -
744 -
745 745  = 4.  FAQ =
746 746  
747 -== 4.1  What is the frequency plan for LDDS20? ==
725 +== 4.1  What is the frequency plan for LDDS75? ==
748 748  
749 -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"]]
727 +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"]]
750 750  
751 751  
752 752  
753 753  == 4.2  How to change the LoRa Frequency Bands/Region ==
754 754  
755 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.7A0200BFirmwareChangeLog"]].
733 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
756 756  When downloading the images, choose the required image file for download. ​
757 757  
758 758  
759 759  
738 +== 4.3  Can I use LDDS75 in condensation environment? ==
739 +
740 +LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
741 +
742 +
743 +
760 760  = 5.  Trouble Shooting =
761 761  
762 762  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
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776 776  = 6.  Order Info =
777 777  
778 778  
779 -Part Number **:** (% style="color:blue" %)**LDDS20-XX**
763 +Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
780 780  
781 781  
782 782  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
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790 790  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
791 791  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
792 792  
777 +(% style="color:blue" %)**YY**(%%): Battery Option
793 793  
779 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
780 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
781 +
794 794  = 7. ​ Packing Info =
795 795  
796 796  
797 797  **Package Includes**:
798 798  
799 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
787 +* LDDS75 LoRaWAN Distance Detection Sensor x 1
800 800  
801 -
802 -(% style="color:red" %)**Note:**
803 -
804 -(% 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.
805 -
806 -
807 807  **Dimension and weight**:
808 808  
809 809  * Device Size: cm
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811 811  * Package Size / pcs : cm
812 812  * Weight / pcs : g
813 813  
814 -
815 815  = 8.  ​Support =
816 816  
817 817  * 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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