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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 175.4
edited by Xiaoling
on 2022/06/15 10:49
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -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  
... ... @@ -375,8 +375,6 @@
375 375  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
376 376  
377 377  
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.
... ... @@ -509,8 +509,6 @@
509 509  * Blink once when device transmit a packet.
510 510  
511 511  
512 -
513 -
514 514  == 2.7  ​Firmware Change Log ==
515 515  
516 516  
... ... @@ -638,90 +638,120 @@
638 638  
639 639  (% style="color:#037691" %)** Keys, IDs and EUIs management :**
640 640  
641 -AT+APPEUI  :  Application EUI      
625 +AT+APPEUI  : Application EUI      
642 642  
643 -AT+APPKEY  :  Application Key     
627 +AT+APPKEY  : Application Key     
644 644  
645 -AT+APPSKEY  :  Application Session Key
629 +AT+APPSKEY  : Application Session Key
646 646  
647 -AT+DADDR :  Device Address     
631 +AT+DADDR : Device Address     
648 648  
649 -AT+DEUI :  Device EUI     
633 +AT+DEUI : Device EUI     
650 650  
651 -AT+NWKID  :  Network ID (You can enter this command change only after successful network connection) 
635 +AT+NWKID  : Network ID (You can enter this command change only after successful network connection) 
652 652  
653 653  AT+NWKSKEY  : Network Session Key Joining and sending date on LoRa network  
654 654  
655 -AT+CFM :  Confirm Mode       
639 +AT+CFM : Confirm Mode       
656 656  
657 -AT+CFS :  Confirm Status       
641 +AT+CFS : Confirm Status       
658 658  
659 -AT+JOIN  :  Join LoRa? Network       
643 +AT+JOIN  : Join LoRa? Network       
660 660  
661 -AT+NJM  :  LoRa? Network Join Mode    
645 +AT+NJM  : LoRa? Network Join Mode    
662 662  
663 -AT+NJS  :  LoRa? Network Join Status    
647 +AT+NJS  : LoRa? Network Join Status    
664 664  
665 -AT+RECV  :  Print Last Received Data in Raw Format
649 +AT+RECV  : Print Last Received Data in Raw Format
666 666  
667 -AT+RECVB :  Print Last Received Data in Binary Format      
651 +AT+RECVB : Print Last Received Data in Binary Format      
668 668  
669 -AT+SEND  :  Send Text Data      
653 +AT+SEND  : Send Text Data      
670 670  
671 -AT+SENB  :  Send Hexadecimal Data
655 +AT+SENB  : Send Hexadecimal Data
672 672  
673 673  
674 674  (% style="color:#037691" %)** LoRa Network Management :**
675 675  
676 -AT+ADR  :  Adaptive Rate
660 +AT+ADR          : Adaptive Rate
677 677  
678 -AT+CLASS  :  LoRa Class(Currently only support class A
662 +AT+CLASS                : LoRa Class(Currently only support class A
679 679  
680 -AT+DCS  :  Duty Cycle Setting 
664 +AT+DCS           : Duty Cycle Setting 
681 681  
682 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
666 +AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
683 683  
684 -AT+FCD  :  Frame Counter Downlink       
668 +AT+FCD           : Frame Counter Downlink       
685 685  
686 -AT+FCU  :  Frame Counter Uplink   
670 +AT+FCU           : Frame Counter Uplink   
687 687  
688 -AT+JN1DL  :  Join Accept Delay1
672 +AT+JN1DL                : Join Accept Delay1
689 689  
690 -AT+JN2DL  :  Join Accept Delay2
674 +AT+JN2DL                : Join Accept Delay2
691 691  
692 -AT+PNM  :  Public Network Mode   
676 +AT+PNM                   : Public Network Mode   
693 693  
694 -AT+RX1DL  :  Receive Delay1      
678 +AT+RX1DL                : Receive Delay1      
695 695  
696 -AT+RX2DL  :  Receive Delay2      
680 +AT+RX2DL                : Receive Delay2      
697 697  
698 -AT+RX2DR  :  Rx2 Window Data Rate 
682 +AT+RX2DR               : Rx2 Window Data Rate 
699 699  
700 -AT+RX2FQ  :  Rx2 Window Frequency
684 +AT+RX2FQ               : Rx2 Window Frequency
701 701  
702 -AT+TXP  :  Transmit Power
686 +AT+TXP           : Transmit Power
703 703  
704 704  
705 705  (% style="color:#037691" %)** Information :**
706 706  
707 -AT+RSSI  :  RSSI of the Last Received Packet   
691 +AT+RSSI           : RSSI of the Last Received Packet   
708 708  
709 -AT+SNR  :  SNR of the Last Received Packet   
693 +AT+SNR           : SNR of the Last Received Packet   
710 710  
711 -AT+VER  :  Image Version and Frequency Band       
695 +AT+VER           : Image Version and Frequency Band       
712 712  
713 -AT+FDR  :  Factory Data Reset
697 +AT+FDR           : Factory Data Reset
714 714  
715 -AT+PORT  :  Application Port    
699 +AT+PORT                  : Application Port    
716 716  
717 -AT+CHS  :  Get or Set Frequency (Unit: Hz) for Single Channel Mode
701 +AT+CHS           : Get or Set Frequency (Unit: Hz) for Single Channel Mode
718 718  
719 - AT+CHE  :  Get or Set eight channels mode, Only for US915, AU915, CN470
703 + AT+CHE                   : Get or Set eight channels mode, Only for US915, AU915, CN470
720 720  
721 721  
722 722  
723 -== 3.2  Set Interrupt Mode ==
707 +== 3.2  Set Transmit Interval Time ==
724 724  
709 +Feature: Change LoRaWAN End Node Transmit Interval.
710 +
711 +(% style="color:#037691" %)**AT Command: AT+TDC**
712 +
713 +[[image:image-20220610173409-7.png]]
714 +
715 +
716 +(((
717 +(% style="color:#037691" %)**Downlink Command: 0x01**
718 +)))
719 +
720 +(((
721 +(((
722 +Format: Command Code (0x01) followed by 3 bytes time value.
723 +
724 +(((
725 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
726 +)))
727 +
728 +* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
729 +* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
730 +)))
731 +)))
732 +
733 +
734 +
735 +
736 +
737 +== 3.3  Set Interrupt Mode ==
738 +
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? ==
759 +== 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"]]
761 +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"]].
767 +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  
772 +== 4.3  Can I use LDDS75 in condensation environment? ==
773 +
774 +LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
775 +
776 +
777 +
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**
797 +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  
811 +(% style="color:blue" %)**YY**(%%): Battery Option
793 793  
813 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
814 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
815 +
794 794  = 7. ​ Packing Info =
795 795  
796 796  
797 797  **Package Includes**:
798 798  
799 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
821 +* 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
... ... @@ -811,7 +811,6 @@
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.