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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 55.5
edited by Kilight Cao
on 2025/07/03 15:17
Change comment: There is no comment for this version

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... ... @@ -506,6 +506,7 @@
506 506  
507 507  
508 508  
509 +
509 509  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
510 510  
511 511  
... ... @@ -544,6 +544,7 @@
544 544  
545 545  
546 546  
548 +
547 547  (((
548 548  **To activate this mode, run the following AT commands:**
549 549  )))
... ... @@ -638,6 +638,7 @@
638 638  
639 639  
640 640  
643 +
641 641  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
642 642  
643 643  
... ... @@ -700,6 +700,7 @@
700 700  
701 701  
702 702  
706 +
703 703  === 3.3.6 AT+ADDMOD~=6 (Trigger Mode, Optional) ===
704 704  
705 705  
... ... @@ -2280,6 +2280,7 @@
2280 2280  
2281 2281  
2282 2282  
2287 +
2283 2283  (% style="color:blue" %)**Example 4**(%%): Connecting to a Dry Contact sensor
2284 2284  
2285 2285  From the DI port circuit above, activating the photocoupler requires a voltage difference between the DI+ and DI- ports. However, the Dry Contact sensor is a passive component and cannot provide this voltage difference on its own.
... ... @@ -2547,7 +2547,7 @@
2547 2547  == 5.1 Counting how many objects pass through the flow line ==
2548 2548  
2549 2549  
2550 -See [[How to set up to setup counting for objects passing through the flow line>>How to set up to count objects pass in flow line]].
2555 +See [[How to set up to setup counting for objects passing through the flow line>>https://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/How%20to%20set%20up%20to%20count%20objects%20pass%20in%20flow%20line/]].
2551 2551  
2552 2552  
2553 2553  = 6. FAQ =
... ... @@ -2556,55 +2556,29 @@
2556 2556  This section contains some frequently asked questions, which can help you resolve common issues and find solutions quickly.
2557 2557  
2558 2558  
2559 -== 6.1 How to update the firmware? ==
2564 +== 6.1 OTA Firmware update ==
2560 2560  
2561 2561  
2562 -Dragino frequently releases firmware updates for the LT-22222-L. Updating your LT-22222-L with the latest firmware version helps to:
2567 +(% class="wikigeneratedid" %)
2568 +User can change firmware LT-22222-LA to:
2563 2563  
2564 -* Support new features
2565 -* Fix bugs
2566 -* Change LoRaWAN frequency bands
2570 +* Change Frequency band/ region.
2571 +* Update with new features.
2572 +* Fix bugs.
2567 2567  
2568 -You will need the following things before proceeding:
2574 +Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/fis3g6nmhv0eokg/AAC6BcCZaX4BdqZkduUvZ3jIa?dl=0]]**
2569 2569  
2570 -* 3.5mm programming cable (included with the LT-22222-L as an additional accessory)
2571 -* USB to TTL adapter/converter
2572 -* Download and install the [[STM32 Flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]]. (replaced by STM32CubeProgrammer)
2573 -* Download the latest firmware image from [[LT-22222-L firmware image files>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACrbrDN0AqLHbBat0ViWx5Da/LT-22222-L/Firmware?dl=0&subfolder_nav_tracking=1]]. Check the file name of the firmware to find the correct region.
2574 2574  
2575 -{{info}}
2576 -As of this writing, the latest firmware version available for the LT-22222-L is v1.6.1.
2577 -{{/info}}
2577 +Methods to Update Firmware:
2578 2578  
2579 -Below is the hardware setup for uploading a firmware image to the LT-22222-L:
2579 +* (Recommanded way) OTA firmware update via wireless : **[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]**
2580 +* Update through UART TTL interface : **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
2580 2580  
2581 2581  
2582 2582  
2583 2583  
2584 -Start the STM32 Flash Loader and choose the correct COM port to update.
2585 -
2586 2586  (((
2587 2587  (((
2588 -(% style="color:blue" %)**For LT-22222-L**(%%):
2589 -
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 -)))
2592 -
2593 -
2594 -)))
2595 -
2596 -
2597 -
2598 -
2599 -
2600 -
2601 -
2602 -(% style="color:red" %)**Note**(%%): If you have lost the programming cable, you can make one from a 3.5 mm cable. The pin mapping is as follows:
2603 -
2604 -
2605 -
2606 -(((
2607 -(((
2608 2608  == 6.2 How to change the LoRaWAN frequency band/region? ==
2609 2609  
2610 2610  
... ... @@ -2618,7 +2618,7 @@
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? ==
2600 +== 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  )))
... ... @@ -2625,7 +2625,7 @@
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.
2607 +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  
... ... @@ -2653,7 +2653,7 @@
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:
2635 +(% 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  )))
... ... @@ -2689,6 +2689,7 @@
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  
2671 +[[image:1653360498588-932.png]]
2692 2692  
2693 2693  
2694 2694  == 6.4 How to change the uplink interval? ==
... ... @@ -2726,7 +2726,7 @@
2726 2726  
2727 2727  
2728 2728  
2729 -== 6.9 Why does the LT-22222-LA always report 15.585V when measuring the AVI? ==
2709 +== 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? ==
2760 +== 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.
... ... @@ -2787,7 +2787,7 @@
2787 2787  = 8. Ordering information =
2788 2788  
2789 2789  
2790 -(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
2770 +(% style="color:#4f81bd" %)**LT-22222-LA-XXX:**
2791 2791  
2792 2792  (% style="color:#4f81bd" %)**XXX:**
2793 2793  
... ... @@ -2806,8 +2806,8 @@
2806 2806  
2807 2807  (% style="color:#037691" %)**Package Includes**:
2808 2808  
2809 -* 1 x LT-22222-L I/O Controller
2810 -* 1 x LoRa antenna matched to the frequency of the LT-22222-L
2789 +* 1 x LT-22222-LA I/O Controller
2790 +* 1 x LoRa antenna matched to the frequency of the LT-22222-LA
2811 2811  * 1 x bracket for DIN rail mounting
2812 2812  * 1 x 3.5 mm programming cable
2813 2813  
... ... @@ -2831,6 +2831,6 @@
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]]
2814 +* 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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