Skip to Content
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 175.6
edited by Xiaoling
on 2022/06/15 10:53
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.
... ... @@ -371,6 +371,7 @@
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 +
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.
... ... @@ -502,6 +502,7 @@
502 502  * Solid ON for 5 seconds once device successful Join the network.
503 503  * Blink once when device transmit a packet.
504 504  
497 +
505 505  == 2.7  ​Firmware Change Log ==
506 506  
507 507  
... ... @@ -695,24 +695,54 @@
695 695  
696 696  (% style="color:#037691" %)** Information :**
697 697  
698 -AT+RSSI  :  RSSI of the Last Received Packet   
691 +AT+RSSI           : RSSI of the Last Received Packet   
699 699  
700 -AT+SNR  :  SNR of the Last Received Packet   
693 +AT+SNR           : SNR of the Last Received Packet   
701 701  
702 -AT+VER  :  Image Version and Frequency Band       
695 +AT+VER           : Image Version and Frequency Band       
703 703  
704 -AT+FDR  :  Factory Data Reset
697 +AT+FDR           : Factory Data Reset
705 705  
706 -AT+PORT  :  Application Port    
699 +AT+PORT                  : Application Port    
707 707  
708 -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
709 709  
710 - 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
711 711  
712 712  
713 713  
714 -== 3.2  Set Interrupt Mode ==
707 +== 3.2  Set Transmit Interval Time ==
715 715  
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 +
716 716  Feature, Set Interrupt mode for GPIO_EXIT.
717 717  
718 718  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
... ... @@ -731,23 +731,27 @@
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? ==
759 +== 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"]]
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"]]
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"]].
767 +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  
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 +
751 751  = 5.  Trouble Shooting =
752 752  
753 753  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
... ... @@ -767,7 +767,7 @@
767 767  = 6.  Order Info =
768 768  
769 769  
770 -Part Number **:** (% style="color:blue" %)**LDDS20-XX**
797 +Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
771 771  
772 772  
773 773  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
... ... @@ -781,20 +781,18 @@
781 781  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
782 782  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
783 783  
811 +(% style="color:blue" %)**YY**(%%): Battery Option
784 784  
813 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
814 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
815 +
785 785  = 7. ​ Packing Info =
786 786  
787 787  
788 788  **Package Includes**:
789 789  
790 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
821 +* 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
... ... @@ -802,7 +802,6 @@
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.