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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 174.5
edited by Xiaoling
on 2022/06/15 10:31
Change comment: There is no comment for this version

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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  
... ... @@ -542,14 +542,9 @@
542 542  
543 543  
544 544  
545 -== 2.8.2  Battery Note ==
546 546  
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.
544 +=== 2.10.2  Replace the battery ===
548 548  
549 -
550 -
551 -=== 2.8.3  Replace the battery ===
552 -
553 553  (((
554 554  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.
555 555  )))
... ... @@ -564,152 +564,138 @@
564 564  
565 565  
566 566  
567 -== 2.8.4  Battery Life Analyze ==
560 += 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
568 568  
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:
562 +(((
563 +(((
564 +Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
565 +)))
566 +)))
570 570  
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]]
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 +)))
572 572  
579 +(((
580 +(((
581 +
582 +)))
573 573  
584 +(((
585 +There are two kinds of commands to configure LDDS75, they are:
586 +)))
587 +)))
574 574  
575 -= 3.  Using the AT Commands =
589 +* (((
590 +(((
591 +(% style="color:#4f81bd" %)** General Commands**.
592 +)))
593 +)))
576 576  
577 577  (((
578 578  (((
579 -
597 +These commands are to configure:
580 580  )))
581 581  )))
582 582  
583 -== 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 +)))
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.
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 +)))
586 586  
618 +(((
619 +(((
620 +
621 +)))
622 +)))
587 587  
588 -[[image:image-20220610172924-4.png||height="483" width="988"]]
624 +* (((
625 +(((
626 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
627 +)))
628 +)))
589 589  
590 -
591 -Or if you have below board, use below connection:
592 -
593 -
594 -[[image:image-20220610172924-5.png]]
595 -
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:
631 +(((
632 +These commands only valid for LDDS75, as below:
599 599  )))
634 +)))
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/]].
638 +== 3.1  Access AT Commands ==
605 605  
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.
606 606  
607 -AT+<CMD>?  :  Help on <CMD>
642 +[[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
645 +Or if you have below board, use below connection:
612 612  
613 -AT+<CMD>=?  :  Get the value
614 614  
648 +[[image:image-20220610172924-5.png]]
615 615  
616 -(% style="color:#037691" %)** General Commands :**     
617 617  
618 -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 +)))
619 619  
620 -AT?  :  Short Help     
621 621  
622 -ATZ :  MCU Reset    
656 + [[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 :**
660 +== 3.2  Set Transmit Interval Time ==
628 628  
629 -AT+APPEUI  :  Application EUI      
662 +Feature: Change LoRaWAN End Node Transmit Interval.
630 630  
631 -AT+APPKEY  :  Application Key     
664 +(% style="color:#037691" %)**AT Command: AT+TDC**
632 632  
633 -AT+APPSKEY  :  Application Session Key
666 +[[image:image-20220610173409-7.png]]
634 634  
635 -AT+DADDR :  Device Address     
636 636  
637 -AT+DEUI :  Device EUI     
669 +(((
670 +(% style="color:#037691" %)**Downlink Command: 0x01**
671 +)))
638 638  
639 -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.
640 640  
641 -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 +)))
642 642  
643 -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 +)))
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
690 +== 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**
... ... @@ -728,23 +728,27 @@
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? ==
712 +== 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"]]
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"]]
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"]].
720 +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  
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 +
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**
750 +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  
764 +(% style="color:blue" %)**YY**(%%): Battery Option
781 781  
766 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
767 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
768 +
782 782  = 7. ​ Packing Info =
783 783  
784 784  
785 785  **Package Includes**:
786 786  
787 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
774 +* 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
... ... @@ -799,7 +799,6 @@
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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