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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 174.8
edited by Xiaoling
on 2022/06/15 10:37
Change comment: There is no comment for this version
To version 175.22
edited by Xiaoling
on 2022/06/15 11:09
Change comment: There is no comment for this version

Summary

Details

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Content
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100 100  * IP66 Waterproof Enclosure
101 101  * 8500mAh Battery for long term use
102 102  
103 +
104 +
105 +
103 103  == 1.3  Suitable Container & Liquid ==
104 104  
105 105  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -109,6 +109,9 @@
109 109  ** Pure non metal material: <10 mm
110 110  * Pure liquid without irregular deposition.
111 111  
115 +
116 +
117 +
112 112  == 1.4  Mechanical ==
113 113  
114 114  [[image:image-20220615090910-1.png]]
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198 198  * Smart liquid control solution.
199 199  * Smart liquefied gas solution.
200 200  
207 +
208 +
209 +
201 201  == 1.7  Precautions ==
202 202  
203 203  * 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.
... ... @@ -204,6 +204,9 @@
204 204  * 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.
205 205  * 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.
206 206  
216 +
217 +
218 +
207 207  == 1.8  Pin mapping and power on ==
208 208  
209 209  
... ... @@ -364,6 +364,7 @@
364 364  
365 365  
366 366  
379 +
367 367  === 2.3.3  Interrupt Pin ===
368 368  
369 369  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.
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407 407  While using TTN network, you can add the payload format to decode the payload.
408 408  
409 409  
410 -[[image:1654850829385-439.png]]
423 +[[image:1655261164557-670.png]]
411 411  
412 412  The payload decoder function for TTN V3 is here:
413 413  
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495 495  * Solid ON for 5 seconds once device successful Join the network.
496 496  * Blink once when device transmit a packet.
497 497  
498 -
499 -
500 500  == 2.7  ​Firmware Change Log ==
501 501  
502 502  
... ... @@ -593,46 +593,121 @@
593 593  
594 594  
595 595  (((
596 -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:
607 +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:
597 597  )))
598 598  
599 599  
600 600   [[image:image-20220610172924-6.png||height="601" width="860"]]
601 601  
613 +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/]].
602 602  
603 603  
604 -== 3.2  Set Transmit Interval Time ==
616 +AT+<CMD>?  :  Help on <CMD>
605 605  
606 -Feature: Change LoRaWAN End Node Transmit Interval.
618 +AT+<CMD>  :  Run <CMD>
607 607  
608 -(% style="color:#037691" %)**AT Command: AT+TDC**
620 +AT+<CMD>=<value>  :  Set the value
609 609  
610 -[[image:image-20220610173409-7.png]]
622 +AT+<CMD>=?  :  Get the value
611 611  
612 612  
613 -(((
614 -(% style="color:#037691" %)**Downlink Command: 0x01**
615 -)))
625 +(% style="color:#037691" %)** General Commands :**     
616 616  
617 -(((
618 -(((
619 -Format: Command Code (0x01) followed by 3 bytes time value.
627 +AT  :  Attention       
620 620  
621 -(((
622 -If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
623 -)))
629 +AT?  :  Short Help     
624 624  
625 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
626 -* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
627 -)))
628 -)))
631 +ATZ :  MCU Reset    
629 629  
633 +AT+TDC :  Application Data Transmission Interval 
630 630  
631 631  
636 +(% style="color:#037691" %)** Keys, IDs and EUIs management :**
632 632  
638 +AT+APPEUI  :  Application EUI      
633 633  
634 -== 3.3  Set Interrupt Mode ==
640 +AT+APPKEY  :  Application Key     
635 635  
642 +AT+APPSKEY  :  Application Session Key
643 +
644 +AT+DADDR :  Device Address     
645 +
646 +AT+DEUI :  Device EUI     
647 +
648 +AT+NWKID  :  Network ID (You can enter this command change only after successful network connection) 
649 +
650 +AT+NWKSKEY  : Network Session Key Joining and sending date on LoRa network  
651 +
652 +AT+CFM :  Confirm Mode       
653 +
654 +AT+CFS :  Confirm Status       
655 +
656 +AT+JOIN  :  Join LoRa? Network       
657 +
658 +AT+NJM  :  LoRa? Network Join Mode    
659 +
660 +AT+NJS  :  LoRa? Network Join Status    
661 +
662 +AT+RECV  :  Print Last Received Data in Raw Format
663 +
664 +AT+RECVB :  Print Last Received Data in Binary Format      
665 +
666 +AT+SEND  :  Send Text Data      
667 +
668 +AT+SENB  :  Send Hexadecimal Data
669 +
670 +
671 +(% style="color:#037691" %)** LoRa Network Management :**
672 +
673 +AT+ADR  :  Adaptive Rate
674 +
675 +AT+CLASS  :  LoRa Class(Currently only support class A
676 +
677 +AT+DCS  :  Duty Cycle Setting 
678 +
679 +AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
680 +
681 +AT+FCD  :  Frame Counter Downlink       
682 +
683 +AT+FCU  :  Frame Counter Uplink   
684 +
685 +AT+JN1DL  :  Join Accept Delay1
686 +
687 +AT+JN2DL  :  Join Accept Delay2
688 +
689 +AT+PNM  :  Public Network Mode   
690 +
691 +AT+RX1DL  :  Receive Delay1      
692 +
693 +AT+RX2DL  :  Receive Delay2      
694 +
695 +AT+RX2DR  :  Rx2 Window Data Rate 
696 +
697 +AT+RX2FQ  :  Rx2 Window Frequency
698 +
699 +AT+TXP  :  Transmit Power
700 +
701 +
702 +(% style="color:#037691" %)** Information :**
703 +
704 +AT+RSSI  :  RSSI of the Last Received Packet   
705 +
706 +AT+SNR  :  SNR of the Last Received Packet   
707 +
708 +AT+VER  :  Image Version and Frequency Band       
709 +
710 +AT+FDR  :  Factory Data Reset
711 +
712 +AT+PORT  :  Application Port    
713 +
714 +AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
715 +
716 + AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
717 +
718 +
719 +
720 +== 3.2  Set Interrupt Mode ==
721 +
636 636  Feature, Set Interrupt mode for GPIO_EXIT.
637 637  
638 638  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
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651 651  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
652 652  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
653 653  
740 +
741 +
654 654  = 4.  FAQ =
655 655  
656 -== 4.1  What is the frequency plan for LDDS75? ==
744 +== 4.1  What is the frequency plan for LDDS20? ==
657 657  
658 -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"]]
746 +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"]]
659 659  
660 660  
661 661  
662 662  == 4.2  How to change the LoRa Frequency Bands/Region ==
663 663  
664 -You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
752 +You can follow the instructions for [[how to upgrade image>>||anchor="H2.7A0200BFirmwareChangeLog"]].
665 665  When downloading the images, choose the required image file for download. ​
666 666  
667 667  
668 668  
669 -== 4.3  Can I use LDDS75 in condensation environment? ==
670 -
671 -LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
672 -
673 -
674 -
675 675  = 5.  Trouble Shooting =
676 676  
677 677  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
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691 691  = 6.  Order Info =
692 692  
693 693  
694 -Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
776 +Part Number **:** (% style="color:blue" %)**LDDS20-XX**
695 695  
696 696  
697 697  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
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705 705  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
706 706  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
707 707  
708 -(% style="color:blue" %)**YY**(%%): Battery Option
709 709  
710 -* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
711 -* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
712 -
713 713  = 7. ​ Packing Info =
714 714  
715 715  
716 716  **Package Includes**:
717 717  
718 -* LDDS75 LoRaWAN Distance Detection Sensor x 1
796 +* LDDS20 LoRaWAN Liquid Level Sensor x 1
719 719  
798 +
799 +(% style="color:red" %)**Note:**
800 +
801 +(% 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.
802 +
803 +
720 720  **Dimension and weight**:
721 721  
722 722  * Device Size: cm
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724 724  * Package Size / pcs : cm
725 725  * Weight / pcs : g
726 726  
811 +
727 727  = 8.  ​Support =
728 728  
729 729  * 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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1 +XWiki.Xiaoling
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