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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 175.12
edited by Xiaoling
on 2022/06/15 10:59
Change comment: There is no comment for this version
To version 175.3
edited by Xiaoling
on 2022/06/15 10:47
Change comment: There is no comment for this version

Summary

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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  
... ... @@ -620,90 +620,120 @@
620 620  
621 621  (% style="color:#037691" %)** Keys, IDs and EUIs management :**
622 622  
623 -AT+APPEUI  :  Application EUI      
625 +AT+APPEUI              : Application EUI      
624 624  
625 -AT+APPKEY  :  Application Key     
627 +AT+APPKEY              : Application Key     
626 626  
627 -AT+APPSKEY  :  Application Session Key
629 +AT+APPSKEY            : Application Session Key
628 628  
629 -AT+DADDR :  Device Address     
631 +AT+DADDR              : Device Address     
630 630  
631 -AT+DEUI :  Device EUI     
633 +AT+DEUI                   : Device EUI     
632 632  
633 -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) 
634 634  
635 -AT+NWKSKEY  : Network Session Key Joining and sending date on LoRa network  
637 +AT+NWKSKEY          : Network Session Key Joining and sending date on LoRa network  
636 636  
637 -AT+CFM :  Confirm Mode       
639 +AT+CFM          : Confirm Mode       
638 638  
639 -AT+CFS :  Confirm Status       
641 +AT+CFS                     : Confirm Status       
640 640  
641 -AT+JOIN  :  Join LoRa? Network       
643 +AT+JOIN          : Join LoRa? Network       
642 642  
643 -AT+NJM  :  LoRa? Network Join Mode    
645 +AT+NJM          : LoRa? Network Join Mode    
644 644  
645 -AT+NJS  :  LoRa? Network Join Status    
647 +AT+NJS                     : LoRa? Network Join Status    
646 646  
647 -AT+RECV  :  Print Last Received Data in Raw Format
649 +AT+RECV                  : Print Last Received Data in Raw Format
648 648  
649 -AT+RECVB :  Print Last Received Data in Binary Format      
651 +AT+RECVB                : Print Last Received Data in Binary Format      
650 650  
651 -AT+SEND  :  Send Text Data      
653 +AT+SEND                  : Send Text Data      
652 652  
653 -AT+SENB  :  Send Hexadecimal Data
655 +AT+SENB                  : Send Hexadecimal Data
654 654  
655 655  
656 656  (% style="color:#037691" %)** LoRa Network Management :**
657 657  
658 -AT+ADR  :  Adaptive Rate
660 +AT+ADR          : Adaptive Rate
659 659  
660 -AT+CLASS  :  LoRa Class(Currently only support class A
662 +AT+CLASS                : LoRa Class(Currently only support class A
661 661  
662 -AT+DCS  :  Duty Cycle Setting 
664 +AT+DCS           : Duty Cycle Setting 
663 663  
664 -AT+DR  :  Data Rate (Can Only be Modified after ADR=0)     
666 +AT+DR                      : Data Rate (Can Only be Modified after ADR=0)     
665 665  
666 -AT+FCD  :  Frame Counter Downlink       
668 +AT+FCD           : Frame Counter Downlink       
667 667  
668 -AT+FCU  :  Frame Counter Uplink   
670 +AT+FCU           : Frame Counter Uplink   
669 669  
670 -AT+JN1DL  :  Join Accept Delay1
672 +AT+JN1DL                : Join Accept Delay1
671 671  
672 -AT+JN2DL  :  Join Accept Delay2
674 +AT+JN2DL                : Join Accept Delay2
673 673  
674 -AT+PNM  :  Public Network Mode   
676 +AT+PNM                   : Public Network Mode   
675 675  
676 -AT+RX1DL  :  Receive Delay1      
678 +AT+RX1DL                : Receive Delay1      
677 677  
678 -AT+RX2DL  :  Receive Delay2      
680 +AT+RX2DL                : Receive Delay2      
679 679  
680 -AT+RX2DR  :  Rx2 Window Data Rate 
682 +AT+RX2DR               : Rx2 Window Data Rate 
681 681  
682 -AT+RX2FQ  :  Rx2 Window Frequency
684 +AT+RX2FQ               : Rx2 Window Frequency
683 683  
684 -AT+TXP  :  Transmit Power
686 +AT+TXP           : Transmit Power
685 685  
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**
... ... @@ -722,22 +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 -
726 726  = 4.  FAQ =
727 727  
728 -== 4.1  What is the frequency plan for LDDS20? ==
759 +== 4.1  What is the frequency plan for LDDS75? ==
729 729  
730 -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"]]
731 731  
732 732  
733 733  
734 734  == 4.2  How to change the LoRa Frequency Bands/Region ==
735 735  
736 -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"]].
737 737  When downloading the images, choose the required image file for download. ​
738 738  
739 739  
740 740  
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 +
741 741  = 5.  Trouble Shooting =
742 742  
743 743  == 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==