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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.20
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

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.
... ... @@ -371,6 +371,8 @@
371 371  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
372 372  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
373 373  
365 +
366 +
374 374  === 2.3.3  Interrupt Pin ===
375 375  
376 376  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.
... ... @@ -414,7 +414,7 @@
414 414  While using TTN network, you can add the payload format to decode the payload.
415 415  
416 416  
417 -[[image:1655261164557-670.png]]
410 +[[image:1654850829385-439.png]]
418 418  
419 419  The payload decoder function for TTN V3 is here:
420 420  
... ... @@ -502,6 +502,8 @@
502 502  * Solid ON for 5 seconds once device successful Join the network.
503 503  * Blink once when device transmit a packet.
504 504  
498 +
499 +
505 505  == 2.7  ​Firmware Change Log ==
506 506  
507 507  
... ... @@ -575,144 +575,138 @@
575 575  
576 576  
577 577  
578 -= 3.  Using the AT Commands =
573 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
579 579  
580 580  (((
581 581  (((
582 -
577 +Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
583 583  )))
584 584  )))
585 585  
586 -== 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 +)))
587 587  
588 -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 +)))
589 589  
597 +(((
598 +There are two kinds of commands to configure LDDS75, they are:
599 +)))
600 +)))
590 590  
591 -[[image:image-20220610172924-4.png||height="483" width="988"]]
602 +* (((
603 +(((
604 +(% style="color:#4f81bd" %)** General Commands**.
605 +)))
606 +)))
592 592  
608 +(((
609 +(((
610 +These commands are to configure:
611 +)))
612 +)))
593 593  
594 -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 +)))
595 595  
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 +)))
596 596  
597 -[[image:image-20220610172924-5.png]]
631 +(((
632 +(((
633 +
634 +)))
635 +)))
598 598  
637 +* (((
638 +(((
639 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
640 +)))
641 +)))
599 599  
600 600  (((
601 -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:
602 602  )))
647 +)))
603 603  
604 604  
605 - [[image:image-20220610172924-6.png||height="601" width="860"]]
606 606  
607 -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 ==
608 608  
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.
609 609  
610 -AT+<CMD>?  :  Help on <CMD>
655 +[[image:image-20220610172924-4.png||height="483" width="988"]]
611 611  
612 -AT+<CMD>  :  Run <CMD>
613 613  
614 -AT+<CMD>=<value>  :  Set the value
658 +Or if you have below board, use below connection:
615 615  
616 -AT+<CMD>=?  :  Get the value
617 617  
661 +[[image:image-20220610172924-5.png]]
618 618  
619 -(% style="color:#037691" %)** General Commands :**     
620 620  
621 -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 +)))
622 622  
623 -AT?  :  Short Help     
624 624  
625 -ATZ :  MCU Reset    
669 + [[image:image-20220610172924-6.png||height="601" width="860"]]
626 626  
627 -AT+TDC :  Application Data Transmission Interval 
628 628  
629 629  
630 -(% style="color:#037691" %)** Keys, IDs and EUIs management :**
673 +== 3.2  Set Transmit Interval Time ==
631 631  
632 -AT+APPEUI  :  Application EUI      
675 +Feature: Change LoRaWAN End Node Transmit Interval.
633 633  
634 -AT+APPKEY  :  Application Key     
677 +(% style="color:#037691" %)**AT Command: AT+TDC**
635 635  
636 -AT+APPSKEY  :  Application Session Key
679 +[[image:image-20220610173409-7.png]]
637 637  
638 -AT+DADDR :  Device Address     
639 639  
640 -AT+DEUI :  Device EUI     
682 +(((
683 +(% style="color:#037691" %)**Downlink Command: 0x01**
684 +)))
641 641  
642 -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.
643 643  
644 -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 +)))
645 645  
646 -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 +)))
647 647  
648 -AT+CFS :  Confirm Status       
649 649  
650 -AT+JOIN  :  Join LoRa? Network       
651 651  
652 -AT+NJM  :  LoRa? Network Join Mode    
653 653  
654 -AT+NJS  :  LoRa? Network Join Status    
655 655  
656 -AT+RECV  :  Print Last Received Data in Raw Format
703 +== 3.3  Set Interrupt Mode ==
657 657  
658 -AT+RECVB :  Print Last Received Data in Binary Format      
659 -
660 -AT+SEND  :  Send Text Data      
661 -
662 -AT+SENB  :  Send Hexadecimal Data
663 -
664 -
665 -(% style="color:#037691" %)** LoRa Network Management :**
666 -
667 -AT+ADR  :  Adaptive Rate
668 -
669 -AT+CLASS  :  LoRa Class(Currently only support class A
670 -
671 -AT+DCS  :  Duty Cycle Setting 
672 -
673 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
674 -
675 -AT+FCD  :  Frame Counter Downlink       
676 -
677 -AT+FCU  :  Frame Counter Uplink   
678 -
679 -AT+JN1DL  :  Join Accept Delay1
680 -
681 -AT+JN2DL  :  Join Accept Delay2
682 -
683 -AT+PNM  :  Public Network Mode   
684 -
685 -AT+RX1DL  :  Receive Delay1      
686 -
687 -AT+RX2DL  :  Receive Delay2      
688 -
689 -AT+RX2DR  :  Rx2 Window Data Rate 
690 -
691 -AT+RX2FQ  :  Rx2 Window Frequency
692 -
693 -AT+TXP  :  Transmit Power
694 -
695 -
696 -(% style="color:#037691" %)** Information :**
697 -
698 -AT+RSSI  :  RSSI of the Last Received Packet   
699 -
700 -AT+SNR  :  SNR of the Last Received Packet   
701 -
702 -AT+VER  :  Image Version and Frequency Band       
703 -
704 -AT+FDR  :  Factory Data Reset
705 -
706 -AT+PORT  :  Application Port    
707 -
708 -AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
709 -
710 - AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
711 -
712 -
713 -
714 -== 3.2  Set Interrupt Mode ==
715 -
716 716  Feature, Set Interrupt mode for GPIO_EXIT.
717 717  
718 718  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
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731 731  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
732 732  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
733 733  
734 -
735 -
736 736  = 4.  FAQ =
737 737  
738 -== 4.1  What is the frequency plan for LDDS20? ==
725 +== 4.1  What is the frequency plan for LDDS75? ==
739 739  
740 -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"]]
741 741  
742 742  
743 743  
744 744  == 4.2  How to change the LoRa Frequency Bands/Region ==
745 745  
746 -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"]].
747 747  When downloading the images, choose the required image file for download. ​
748 748  
749 749  
750 750  
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 +
751 751  = 5.  Trouble Shooting =
752 752  
753 753  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
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767 767  = 6.  Order Info =
768 768  
769 769  
770 -Part Number **:** (% style="color:blue" %)**LDDS20-XX**
763 +Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
771 771  
772 772  
773 773  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
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781 781  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
782 782  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
783 783  
777 +(% style="color:blue" %)**YY**(%%): Battery Option
784 784  
779 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
780 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
781 +
785 785  = 7. ​ Packing Info =
786 786  
787 787  
788 788  **Package Includes**:
789 789  
790 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
787 +* LDDS75 LoRaWAN Distance Detection Sensor x 1
791 791  
792 -
793 -(% style="color:red" %)**Note:**
794 -
795 -(% 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.
796 -
797 -
798 798  **Dimension and weight**:
799 799  
800 800  * Device Size: cm
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802 802  * Package Size / pcs : cm
803 803  * Weight / pcs : g
804 804  
805 -
806 806  = 8.  ​Support =
807 807  
808 808  * 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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