Skip to Content
Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.17
edited by Xiaoling
on 2022/06/15 11:06
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
... ... @@ -362,6 +362,7 @@
362 362  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
363 363  * If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
364 364  
365 +
365 365  === 2.3.3  Interrupt Pin ===
366 366  
367 367  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.
... ... @@ -493,6 +493,7 @@
493 493  * Solid ON for 5 seconds once device successful Join the network.
494 494  * Blink once when device transmit a packet.
495 495  
497 +
496 496  == 2.7  ​Firmware Change Log ==
497 497  
498 498  
... ... @@ -686,24 +686,54 @@
686 686  
687 687  (% style="color:#037691" %)** Information :**
688 688  
689 -AT+RSSI  :  RSSI of the Last Received Packet   
691 +AT+RSSI           : RSSI of the Last Received Packet   
690 690  
691 -AT+SNR  :  SNR of the Last Received Packet   
693 +AT+SNR           : SNR of the Last Received Packet   
692 692  
693 -AT+VER  :  Image Version and Frequency Band       
695 +AT+VER           : Image Version and Frequency Band       
694 694  
695 -AT+FDR  :  Factory Data Reset
697 +AT+FDR           : Factory Data Reset
696 696  
697 -AT+PORT  :  Application Port    
699 +AT+PORT                  : Application Port    
698 698  
699 -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
700 700  
701 - 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
702 702  
703 703  
704 704  
705 -== 3.2  Set Interrupt Mode ==
707 +== 3.2  Set Transmit Interval Time ==
706 706  
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 +
707 707  Feature, Set Interrupt mode for GPIO_EXIT.
708 708  
709 709  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
... ... @@ -722,23 +722,27 @@
722 722  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
723 723  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
724 724  
725 -
726 -
727 727  = 4.  FAQ =
728 728  
729 -== 4.1  What is the frequency plan for LDDS20? ==
759 +== 4.1  What is the frequency plan for LDDS75? ==
730 730  
731 -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"]]
732 732  
733 733  
734 734  
735 735  == 4.2  How to change the LoRa Frequency Bands/Region ==
736 736  
737 -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"]].
738 738  When downloading the images, choose the required image file for download. ​
739 739  
740 740  
741 741  
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 +
742 742  = 5.  Trouble Shooting =
743 743  
744 744  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
... ... @@ -758,7 +758,7 @@
758 758  = 6.  Order Info =
759 759  
760 760  
761 -Part Number **:** (% style="color:blue" %)**LDDS20-XX**
797 +Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
762 762  
763 763  
764 764  (% style="color:blue" %)**XX**(%%)**: **The default frequency band
... ... @@ -772,19 +772,18 @@
772 772  * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
773 773  * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
774 774  
811 +(% style="color:blue" %)**YY**(%%): Battery Option
775 775  
813 +* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
814 +* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
815 +
776 776  = 7. ​ Packing Info =
777 777  
778 778  
779 779  **Package Includes**:
780 780  
781 -* LDDS20 LoRaWAN Liquid Level Sensor x 1
821 +* LDDS75 LoRaWAN Distance Detection Sensor x 1
782 782  
783 -(% style="color:red" %)**Note:**
784 -
785 -(% 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.
786 -
787 -
788 788  **Dimension and weight**:
789 789  
790 790  * Device Size: cm
... ... @@ -792,7 +792,6 @@
792 792  * Package Size / pcs : cm
793 793  * Weight / pcs : g
794 794  
795 -
796 796  = 8.  ​Support =
797 797  
798 798  * 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.