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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.19
edited by Xiaoling
on 2022/06/15 11:08
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

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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]]
... ... @@ -368,6 +368,8 @@
368 368  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
369 369  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
370 370  
365 +
366 +
371 371  === 2.3.3  Interrupt Pin ===
372 372  
373 373  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.
... ... @@ -411,7 +411,7 @@
411 411  While using TTN network, you can add the payload format to decode the payload.
412 412  
413 413  
414 -[[image:1655261164557-670.png]]
410 +[[image:1654850829385-439.png]]
415 415  
416 416  The payload decoder function for TTN V3 is here:
417 417  
... ... @@ -499,6 +499,8 @@
499 499  * Solid ON for 5 seconds once device successful Join the network.
500 500  * Blink once when device transmit a packet.
501 501  
498 +
499 +
502 502  == 2.7  ​Firmware Change Log ==
503 503  
504 504  
... ... @@ -572,144 +572,138 @@
572 572  
573 573  
574 574  
575 -= 3.  Using the AT Commands =
573 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
576 576  
577 577  (((
578 578  (((
579 -
577 +Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
580 580  )))
581 581  )))
582 582  
583 -== 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 +)))
584 584  
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.
592 +(((
593 +(((
594 +
595 +)))
586 586  
597 +(((
598 +There are two kinds of commands to configure LDDS75, they are:
599 +)))
600 +)))
587 587  
588 -[[image:image-20220610172924-4.png||height="483" width="988"]]
602 +* (((
603 +(((
604 +(% style="color:#4f81bd" %)** General Commands**.
605 +)))
606 +)))
589 589  
608 +(((
609 +(((
610 +These commands are to configure:
611 +)))
612 +)))
590 590  
591 -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 +)))
592 592  
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 +)))
593 593  
594 -[[image:image-20220610172924-5.png]]
631 +(((
632 +(((
633 +
634 +)))
635 +)))
595 595  
637 +* (((
638 +(((
639 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
640 +)))
641 +)))
596 596  
597 597  (((
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:
644 +(((
645 +These commands only valid for LDDS75, as below:
599 599  )))
647 +)))
600 600  
601 601  
602 - [[image:image-20220610172924-6.png||height="601" width="860"]]
603 603  
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/]].
651 +== 3.1  Access AT Commands ==
605 605  
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.
606 606  
607 -AT+<CMD>?  :  Help on <CMD>
655 +[[image:image-20220610172924-4.png||height="483" width="988"]]
608 608  
609 -AT+<CMD>  :  Run <CMD>
610 610  
611 -AT+<CMD>=<value>  :  Set the value
658 +Or if you have below board, use below connection:
612 612  
613 -AT+<CMD>=?  :  Get the value
614 614  
661 +[[image:image-20220610172924-5.png]]
615 615  
616 -(% style="color:#037691" %)** General Commands :**     
617 617  
618 -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 +)))
619 619  
620 -AT?  :  Short Help     
621 621  
622 -ATZ :  MCU Reset    
669 + [[image:image-20220610172924-6.png||height="601" width="860"]]
623 623  
624 -AT+TDC :  Application Data Transmission Interval 
625 625  
626 626  
627 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
673 +== 3.2  Set Transmit Interval Time ==
628 628  
629 -AT+APPEUI  :  Application EUI      
675 +Feature: Change LoRaWAN End Node Transmit Interval.
630 630  
631 -AT+APPKEY  :  Application Key     
677 +(% style="color:#037691" %)**AT Command: AT+TDC**
632 632  
633 -AT+APPSKEY  :  Application Session Key
679 +[[image:image-20220610173409-7.png]]
634 634  
635 -AT+DADDR :  Device Address     
636 636  
637 -AT+DEUI :  Device EUI     
682 +(((
683 +(% style="color:#037691" %)**Downlink Command: 0x01**
684 +)))
638 638  
639 -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.
640 640  
641 -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 +)))
642 642  
643 -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 +)))
644 644  
645 -AT+CFS :  Confirm Status       
646 646  
647 -AT+JOIN  :  Join LoRa? Network       
648 648  
649 -AT+NJM  :  LoRa? Network Join Mode    
650 650  
651 -AT+NJS  :  LoRa? Network Join Status    
652 652  
653 -AT+RECV  :  Print Last Received Data in Raw Format
703 +== 3.3  Set Interrupt Mode ==
654 654  
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 -
713 713  Feature, Set Interrupt mode for GPIO_EXIT.
714 714  
715 715  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
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728 728  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
729 729  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
730 730  
731 -
732 -
733 733  = 4.  FAQ =
734 734  
735 -== 4.1  What is the frequency plan for LDDS20? ==
725 +== 4.1  What is the frequency plan for LDDS75? ==
736 736  
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"]]
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"]]
738 738  
739 739  
740 740  
741 741  == 4.2  How to change the LoRa Frequency Bands/Region ==
742 742  
743 -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"]].
744 744  When downloading the images, choose the required image file for download. ​
745 745  
746 746  
747 747  
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 +
748 748  = 5.  Trouble Shooting =
749 749  
750 750  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
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764 764  = 6.  Order Info =
765 765  
766 766  
767 -Part Number **:** (% style="color:blue" %)**LDDS20-XX**
763 +Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
768 768  
769 769  
770 770  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
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778 778  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
779 779  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
780 780  
777 +(% style="color:blue" %)**YY**(%%): Battery Option
781 781  
779 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
780 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
781 +
782 782  = 7. ​ Packing Info =
783 783  
784 784  
785 785  **Package Includes**:
786 786  
787 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
787 +* LDDS75 LoRaWAN Distance Detection Sensor x 1
788 788  
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 -
795 795  **Dimension and weight**:
796 796  
797 797  * Device Size: cm
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799 799  * Package Size / pcs : cm
800 800  * Weight / pcs : g
801 801  
802 -
803 803  = 8.  ​Support =
804 804  
805 805  * 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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