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Last modified by Kilight Cao on 2025/07/03 15:34
From version 57.5
edited by Kilight Cao
on 2025/07/03 15:30
Change comment: There is no comment for this version
To version 57.2
edited by Kilight Cao
on 2025/07/03 15:28
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -29,8 +29,6 @@
29 29  
30 30  (((
31 31  With the LT-22222-LA I/O Controller, users can transmit data over ultra-long distances with low power consumption using LoRa, a spread-spectrum modulation technique derived from chirp spread spectrum (CSS) technology that operates on license-free ISM bands.
32 -
33 -(% style="color:blue" %)**LT-22222-LA I/O Controller**(%%) support (% style="color:blue" %)**LT-22222-LA I/O Controller**(%%)**OTA upgrade** via private LoRa protocol for easy maintaining.
34 34  )))
35 35  
36 36  (((
... ... @@ -2684,13 +2684,13 @@
2684 2684  [[image:1653360498588-932.png]]
2685 2685  
2686 2686  
2687 -== 7.4 How to change the uplink interval? ==
2685 +== 6.4 How to change the uplink interval? ==
2688 2688  
2689 2689  
2690 2690  Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/]]
2691 2691  
2692 2692  
2693 -== 7.5 Can I see the counting event in the serial output? ==
2691 +== 6.5 Can I see the counting event in the serial output? ==
2694 2694  
2695 2695  
2696 2696  (((
... ... @@ -2701,7 +2701,7 @@
2701 2701  )))
2702 2702  
2703 2703  (((
2704 -== 7.6 Why does the relay output default to an open relay after the LT-22222-LA is powered off? ==
2702 +== 6.6 Why does the relay output default to an open relay after the LT-22222-LA is powered off? ==
2705 2705  
2706 2706  
2707 2707  * If the device is not properly shut down and is directly powered off.
... ... @@ -2709,7 +2709,7 @@
2709 2709  * In modes 2 to 5, the DO/RO status and pulse count are saved to flash memory.
2710 2710  * After a restart, the status before the power failure will be read from Flash.
2711 2711  
2712 -== 7.7 Can I set up LT-22222-LA as an NC (Normally Closed) relay? ==
2710 +== 6.7 Can I set up LT-22222-LA as an NC (Normally Closed) relay? ==
2713 2713  
2714 2714  
2715 2715  The LT-22222-LA's built-in relay is Normally Open (NO). You can use an external relay to achieve a Normally Closed (NC) configuration. The circuit diagram is shown below:
... ... @@ -2719,13 +2719,13 @@
2719 2719  
2720 2720  
2721 2721  
2722 -== 7.8 Why does the LT-22222-LA always report 15.585V when measuring the AVI? ==
2720 +== 6.8 Why does the LT-22222-LA always report 15.585V when measuring the AVI? ==
2723 2723  
2724 2724  
2725 2725  It is likely that the GND is not connected during the measurement, or that the wire connected to the GND is loose.
2726 2726  
2727 2727  
2728 -= 8. Troubleshooting =
2726 += 7. Troubleshooting =
2729 2729  
2730 2730  
2731 2731  This section provides some known troubleshooting tips.
... ... @@ -2735,7 +2735,7 @@
2735 2735  
2736 2736  (((
2737 2737  (((
2738 -== 8.1 Downlink isn't working. How can I solve this? ==
2736 +== 7.1 Downlink isn't working. How can I solve this? ==
2739 2739  
2740 2740  
2741 2741  )))
... ... @@ -2748,7 +2748,7 @@
2748 2748  (((
2749 2749  
2750 2750  
2751 -== 8.2 Having trouble uploading an image? ==
2749 +== 7.2 Having trouble uploading an image? ==
2752 2752  
2753 2753  
2754 2754  )))
... ... @@ -2760,7 +2760,7 @@
2760 2760  (((
2761 2761  
2762 2762  
2763 -== 8.3 Why can't I join TTN in the US915 /AU915 bands? ==
2761 +== 7.3 Why can't I join TTN in the US915 /AU915 bands? ==
2764 2764  
2765 2765  
2766 2766  )))
... ... @@ -2770,7 +2770,7 @@
2770 2770  )))
2771 2771  
2772 2772  
2773 -== 8.4 Why can the LT-22222-LA perform uplink normally, but cannot receive downlink? ==
2771 +== 7.4 Why can the LT-22222-LA perform uplink normally, but cannot receive downlink? ==
2774 2774  
2775 2775  
2776 2776  The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue.
... ... @@ -2777,7 +2777,7 @@
2777 2777  Use this command to synchronize their counts: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resettingthedownlinkpacketcount"]]
2778 2778  
2779 2779  
2780 -= 9. Ordering information =
2778 += 8. Ordering information =
2781 2781  
2782 2782  
2783 2783  (% style="color:#4f81bd" %)**LT-22222-LA-XXX:**
... ... @@ -2794,7 +2794,7 @@
2794 2794  * (% style="color:red" %)**IN865**(%%): LT with frequency bands IN865
2795 2795  * (% style="color:red" %)**CN779**(%%): LT with frequency bands CN779
2796 2796  
2797 -= 10. Package information =
2795 += 9. Package information =
2798 2798  
2799 2799  
2800 2800  (% style="color:#037691" %)**Package Includes**:
... ... @@ -2809,7 +2809,7 @@
2809 2809  * Package Size / pcs : 145×80×50 mm
2810 2810  * Weight / pcs : 180 g
2811 2811  
2812 -= 11. Support =
2810 += 10. Support =
2813 2813  
2814 2814  
2815 2815  * (((
... ... @@ -2821,7 +2821,7 @@
2821 2821  
2822 2822  )))
2823 2823  
2824 -= 12. Reference​​​​​ =
2822 += 11. Reference​​​​​ =
2825 2825  
2826 2826  
2827 2827  * LT-22222-LA: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]