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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 176.4
edited by Xiaoling
on 2022/06/15 11:33
Change comment: There is no comment for this version
To version 175.5
edited by Xiaoling
on 2022/06/15 10:51
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -6,7 +6,6 @@
6 6  
7 7  **Table of Contents:**
8 8  
9 -{{toc/}}
10 10  
11 11  
12 12  
... ... @@ -101,9 +101,6 @@
101 101  * IP66 Waterproof Enclosure
102 102  * 8500mAh Battery for long term use
103 103  
104 -
105 -
106 -
107 107  == 1.3  Suitable Container & Liquid ==
108 108  
109 109  * Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
... ... @@ -113,9 +113,6 @@
113 113  ** Pure non metal material: <10 mm
114 114  * Pure liquid without irregular deposition.
115 115  
116 -
117 -
118 -
119 119  == 1.4  Mechanical ==
120 120  
121 121  [[image:image-20220615090910-1.png]]
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205 205  * Smart liquid control solution.
206 206  * Smart liquefied gas solution.
207 207  
208 -
209 -
210 -
211 211  == 1.7  Precautions ==
212 212  
213 213  * 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.
... ... @@ -214,9 +214,6 @@
214 214  * 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.
215 215  * 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.
216 216  
217 -
218 -
219 -
220 220  == 1.8  Pin mapping and power on ==
221 221  
222 222  
... ... @@ -376,8 +376,6 @@
376 376  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
377 377  
378 378  
379 -
380 -
381 381  === 2.3.3  Interrupt Pin ===
382 382  
383 383  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.
... ... @@ -510,8 +510,6 @@
510 510  * Blink once when device transmit a packet.
511 511  
512 512  
513 -
514 -
515 515  == 2.7  ​Firmware Change Log ==
516 516  
517 517  
... ... @@ -532,6 +532,8 @@
532 532  == 2.8  Battery Analysis ==
533 533  
534 534  
518 +
519 +
535 535  === 2.8.1  Battery Type ===
536 536  
537 537  The LDDS20 battery is a combination of a 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
... ... @@ -549,11 +549,11 @@
549 549  [[Lithium-ion Battery-Capacitor datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
550 550  )))
551 551  
552 - [[image:image-20220615111024-1.png]]
537 + [[image:image-20220615102527-16.png]]
553 553  
554 554  
555 555  
556 -=== 2.8.2  Battery Note ===
541 +== 2.8.2  Battery Note ==
557 557  
558 558  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.
559 559  
... ... @@ -562,15 +562,20 @@
562 562  === 2.8.3  Replace the battery ===
563 563  
564 564  (((
565 -You can change the battery in the NBSN95.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.
550 +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.
551 +)))
566 566  
553 +(((
554 +
555 +)))
567 567  
568 -The default battery pack of NBSN95 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 or equivalence without the SPC1520 capacitor, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
557 +(((
558 +The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
569 569  )))
570 570  
571 571  
572 572  
573 -=== 2.8.4  Battery Life Analyze ===
563 +== 2.8.4  Battery Life Analyze ==
574 574  
575 575  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:
576 576  
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667 667  
668 668  (% style="color:#037691" %)** LoRa Network Management :**
669 669  
670 -AT+ADR  :  Adaptive Rate
660 +AT+ADR          : Adaptive Rate
671 671  
672 -AT+CLASS  :  LoRa Class(Currently only support class A
662 +AT+CLASS                : LoRa Class(Currently only support class A
673 673  
674 -AT+DCS  :  Duty Cycle Setting 
664 +AT+DCS           : Duty Cycle Setting 
675 675  
676 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
666 +AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
677 677  
678 -AT+FCD  :  Frame Counter Downlink       
668 +AT+FCD           : Frame Counter Downlink       
679 679  
680 -AT+FCU  :  Frame Counter Uplink   
670 +AT+FCU           : Frame Counter Uplink   
681 681  
682 -AT+JN1DL  :  Join Accept Delay1
672 +AT+JN1DL                : Join Accept Delay1
683 683  
684 -AT+JN2DL  :  Join Accept Delay2
674 +AT+JN2DL                : Join Accept Delay2
685 685  
686 -AT+PNM  :  Public Network Mode   
676 +AT+PNM                   : Public Network Mode   
687 687  
688 -AT+RX1DL  :  Receive Delay1      
678 +AT+RX1DL                : Receive Delay1      
689 689  
690 -AT+RX2DL  :  Receive Delay2      
680 +AT+RX2DL                : Receive Delay2      
691 691  
692 -AT+RX2DR  :  Rx2 Window Data Rate 
682 +AT+RX2DR               : Rx2 Window Data Rate 
693 693  
694 -AT+RX2FQ  :  Rx2 Window Frequency
684 +AT+RX2FQ               : Rx2 Window Frequency
695 695  
696 -AT+TXP  :  Transmit Power
686 +AT+TXP           : Transmit Power
697 697  
698 698  
699 699  (% style="color:#037691" %)** Information :**
700 700  
701 -AT+RSSI  :  RSSI of the Last Received Packet   
691 +AT+RSSI           : RSSI of the Last Received Packet   
702 702  
703 -AT+SNR  :  SNR of the Last Received Packet   
693 +AT+SNR           : SNR of the Last Received Packet   
704 704  
705 -AT+VER  :  Image Version and Frequency Band       
695 +AT+VER           : Image Version and Frequency Band       
706 706  
707 -AT+FDR  :  Factory Data Reset
697 +AT+FDR           : Factory Data Reset
708 708  
709 -AT+PORT  :  Application Port    
699 +AT+PORT                  : Application Port    
710 710  
711 -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
712 712  
713 - 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
714 714  
715 715  
716 716  
717 -== 3.2  Set Interrupt Mode ==
707 +== 3.2  Set Transmit Interval Time ==
718 718  
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 +
719 719  Feature, Set Interrupt mode for GPIO_EXIT.
720 720  
721 721  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
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734 734  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
735 735  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
736 736  
737 -
738 -
739 739  = 4.  FAQ =
740 740  
741 -== 4.1  What is the frequency plan for LDDS20? ==
759 +== 4.1  What is the frequency plan for LDDS75? ==
742 742  
743 -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"]]
744 744  
745 745  
746 746  
747 747  == 4.2  How to change the LoRa Frequency Bands/Region ==
748 748  
749 -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"]].
750 750  When downloading the images, choose the required image file for download. ​
751 751  
752 752  
753 753  
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 +
754 754  = 5.  Trouble Shooting =
755 755  
756 756  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
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770 770  = 6.  Order Info =
771 771  
772 772  
773 -Part Number **:** (% style="color:blue" %)**LDDS20-XX**
797 +Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
774 774  
775 775  
776 776  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
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784 784  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
785 785  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
786 786  
811 +(% style="color:blue" %)**YY**(%%): Battery Option
787 787  
813 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
814 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
815 +
788 788  = 7. ​ Packing Info =
789 789  
790 790  
791 791  **Package Includes**:
792 792  
793 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
821 +* LDDS75 LoRaWAN Distance Detection Sensor x 1
794 794  
795 -
796 -(% style="color:red" %)**Note:**
797 -
798 -(% 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.
799 -
800 -
801 801  **Dimension and weight**:
802 802  
803 803  * Device Size: cm
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805 805  * Package Size / pcs : cm
806 806  * Weight / pcs : g
807 807  
808 -
809 809  = 8.  ​Support =
810 810  
811 811  * 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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