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Last modified by Kilight Cao on 2025/07/03 15:34
From version 54.2
edited by Kilight Cao
on 2025/07/03 15:04
Change comment: There is no comment for this version
To version 55.2
edited by Kilight Cao
on 2025/07/03 15:07
Change comment: There is no comment for this version

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2585 2585  
2586 2586  (((
2587 2587  (((
2588 -(% style="color:blue" %)**For LT-22222-L**(%%):
2588 +(% style="color:blue" %)**For LT-22222-LA**(%%):
2589 2589  
2590 2590  Hold down the **PRO** button, then briefly press the **RST** button. The **DO1** LED will change from OFF to ON. When the **DO1** LED is ON, it indicates that the device is in firmware download mode.
2591 2591  )))
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2618 2618  (((
2619 2619  
2620 2620  
2621 -== 6.3 How to set up LT-22222-L to work with a Single Channel Gateway, such as LG01/LG02? ==
2621 +== 6.3 How to set up LT-22222-LA to work with a Single Channel Gateway, such as LG01/LG02? ==
2622 2622  
2623 2623  
2624 2624  )))
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2625 2625  
2626 2626  (((
2627 2627  (((
2628 -In this case, you need to set the LT-22222-L to work in ABP mode and transmit on only one frequency.
2628 +In this case, you need to set the LT-22222-LA to work in ABP mode and transmit on only one frequency.
2629 2629  )))
2630 2630  )))
2631 2631  
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2653 2653  
2654 2654  
2655 2655  (((
2656 -(% style="color:blue" %)**Step 2**(%%)**:  **(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)Run AT commands to configure the LT-22222-L to operate in single-frequency and ABP mode. The AT commands are as follows:
2656 +(% style="color:blue" %)**Step 2**(%%)**:  **(% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)Run AT commands to configure the LT-22222-LA to operate in single-frequency and ABP mode. The AT commands are as follows:
2657 2657  
2658 2658  
2659 2659  )))
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2689 2689  (% style="color:#000000; font-family:Arial,sans-serif; font-size:11pt; font-style:normal; font-variant-alternates:normal; font-variant-east-asian:normal; font-variant-ligatures:normal; font-variant-numeric:normal; font-variant-position:normal; font-weight:400; text-decoration:none; white-space:pre-wrap" %)The following figure shows the screenshot of the command set above, issued using a serial tool:
2690 2690  )))
2691 2691  
2692 +[[image:1653360498588-932.png]]
2692 2692  
2693 2693  
2694 2694  == 6.4 How to change the uplink interval? ==
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2726 2726  
2727 2727  
2728 2728  
2729 -== 6.9 Why does the LT-22222-LA always report 15.585V when measuring the AVI? ==
2730 +== 6.8 Why does the LT-22222-LA always report 15.585V when measuring the AVI? ==
2730 2730  
2731 2731  
2732 2732  It is likely that the GND is not connected during the measurement, or that the wire connected to the GND is loose.
... ... @@ -2777,7 +2777,7 @@
2777 2777  )))
2778 2778  
2779 2779  
2780 -== 7.4 Why can the LT-22222-L perform uplink normally, but cannot receive downlink? ==
2781 +== 7.4 Why can the LT-22222-LA perform uplink normally, but cannot receive downlink? ==
2781 2781  
2782 2782  
2783 2783  The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue.
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2831 2831  = 11. Reference​​​​​ =
2832 2832  
2833 2833  
2834 -* LT-22222-L: [[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]]
2835 +* 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]]
2835 2835  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2836 2836  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
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