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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 79.6
edited by Xiaoling
on 2023/06/13 14:47
Change comment: There is no comment for this version
To version 79.7
edited by Xiaoling
on 2023/06/13 14:51
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -708,16 +708,16 @@
708 708  
709 709  = 6. FAQ =
710 710  
711 -== 6.1  What is the frequency plan for DDS45-LB? ==
711 +== 6.1  What is the frequency plan for DDS20-LB? ==
712 712  
713 713  
714 -DDS45-LB 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 +DDS20-LB 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"]]
715 715  
716 716  
717 -== 6.2  Can I use DDS45-LB in condensation environment? ==
717 +== 6.2  Can I use DDS20-LB in condensation environment? ==
718 718  
719 719  
720 -DDS45-LB is not suitable to be used in condensation environment. Condensation on the DDS45-LB probe will affect the reading and always got 0.
720 +DDS20-LB is not suitable to be used in condensation environment. Condensation on the DDS20-LB probe will affect the reading and always got 0.
721 721  
722 722  
723 723  = 7.  Trouble Shooting =
... ... @@ -734,41 +734,22 @@
734 734  In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:blue" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:blue" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
735 735  
736 736  
737 -== 7.3  Why does the sensor reading show 0 or "No sensor" ==
737 +== 7.3  Why i always see 0x0000 or 0 for the distance value? ==
738 738  
739 739  
740 -~1. The measurement object is very close to the sensor, but in the blind spot of the sensor.
740 +(((
741 +LDDS20 has a strict [[**installation requirement**>>||anchor="H1.5A0InstallLDDS20"]]. Please make sure the installation method exactly follows up with the installation requirement. Otherwise, the reading might be always 0x00.
741 741  
742 -2. Sensor wiring is disconnected
743 +If you have followed the instruction requirement exactly but still see the 0x00 reading issue, please. please double-check the decoder, you can check the raw payload to verify.
744 +)))
743 743  
744 -3. Not using the correct decoder
745 745  
746 746  
747 -== 7.4  Abnormal readings The gap between multiple readings is too large or the gap between the readings and the actual value is too large ==
748 748  
749 -
750 -1) Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
751 -
752 -2) Does it change with temperature, temperature will affect its measurement
753 -
754 -3) If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.
755 -
756 -downlink command: (% style="color:blue" %)**F1 01**(%%), AT command: (% style="color:blue" %)**AT+DDEBUG=1**
757 -
758 -4) After entering the debug mode, it will send 20 pieces of data at a time, and you can send its uplink to us for analysis
759 -
760 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20230113135125-2.png?width=1057&height=136&rev=1.1||alt="image-20230113135125-2.png"]]
761 -
762 -
763 -Its original payload will be longer than other data. Even though it is being parsed, it can be seen that it is abnormal data.
764 -
765 -Please send the data to us for check.
766 -
767 -
768 768  = 8. Order Info =
769 769  
770 770  
771 -Part Number: (% style="color:blue" %)**DDS45-LB-XXX**
752 +Part Number: (% style="color:blue" %)**DDS20-LB-XXX**
772 772  
773 773  (% style="color:red" %)**XXX**(%%): **The default frequency band**
774 774  
... ... @@ -793,7 +793,7 @@
793 793  
794 794  (% style="color:#037691" %)**Package Includes**:
795 795  
796 -* DDS45-LB LoRaWAN Distance Detection Sensor x 1
777 +* DDS20-LB LoRaWAN Ultrasonic Liquid Level Sensor x 1
797 797  
798 798  (% style="color:#037691" %)**Dimension and weight**:
799 799  
... ... @@ -805,6 +805,9 @@
805 805  
806 806  * Weight / pcs : g
807 807  
789 +
790 +
791 +
808 808  = 10. Support =
809 809  
810 810