Changes for page LT-22222-LA -- LoRa I/O Controller User Manual

Last modified by Kilight Cao on 2025/07/03 15:34

From 57.1 to 57.2

From version 57.2

edited by Kilight Cao
on 2025/07/03 15:28

Change comment: There is no comment for this version

To version 59.1

edited by Kilight Cao
on 2025/07/03 15:34

Change comment: There is no comment for this version

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@@ -29,6 +29,8 @@
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  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.
++
++(% style="color:blue" %)**LT-22222-LA I/O Controller**(%%)  support (% style="color:blue" %)**OTA upgrade**(%%) via private LoRa protocol for easy maintaining.
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@@ -96,7 +96,7 @@
  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
  * AT Commands to change parameters
  * Remotely configure parameters via LoRaWAN Downlink
--* Firmware upgradable via program port
++* Support wireless OTA update firmware
  * Counting
  == 1.4 Applications ==
@@ -509,6 +509,7 @@
++
  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
@@ -550,6 +550,7 @@
++
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  **To activate this mode, run the following AT commands:**
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@@ -647,6 +647,7 @@
++
  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
@@ -712,6 +712,7 @@
++
  === 3.3.6 AT+ADDMOD~=6 (Trigger Mode, Optional) ===
@@ -2295,6 +2295,7 @@
++
  (% style="color:blue" %)**Example 4**(%%): Connecting to a Dry Contact sensor
  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.
@@ -2592,7 +2592,6 @@
--
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  == 7.2 How to change the LoRaWAN frequency band/region? ==
@@ -2602,7 +2602,7 @@
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--You can follow the introductions on [[how to upgrade the image>>doc:]]. When downloading, select the required image file.
++You can follow the introductions on [[how to upgrade the image>>doc:.https\:wiki\.dragino\.comxwikibinviewMainUser%20Manual%20for%20LoRaWAN%20End%20NodesLT-22222-LA#H6\.OTAFirmwareupdate.WebHome]]. When downloading, select the required image file.
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@@ -2682,13 +2682,13 @@
  [[image:1653360498588-932.png]]
--== 6.4 How to change the uplink interval? ==
++== 7.4 How to change the uplink interval? ==
  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/]]
--== 6.5 Can I see the counting event in the serial output? ==
++== 7.5 Can I see the counting event in the serial output? ==
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@@ -2699,7 +2699,7 @@
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--== 6.6 Why does the relay output default to an open relay after the LT-22222-LA is powered off? ==
++== 7.6 Why does the relay output default to an open relay after the LT-22222-LA is powered off? ==
  * If the device is not properly shut down and is directly powered off.
@@ -2707,7 +2707,7 @@
  * In modes 2 to 5, the DO/RO status and pulse count are saved to flash memory.
  * After a restart, the status before the power failure will be read from Flash.
--== 6.7 Can I set up LT-22222-LA as an NC (Normally Closed) relay? ==
++== 7.7 Can I set up LT-22222-LA as an NC (Normally Closed) relay? ==
  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:
@@ -2717,13 +2717,13 @@
--== 6.8 Why does the LT-22222-LA always report 15.585V when measuring the AVI? ==
++== 7.8 Why does the LT-22222-LA always report 15.585V when measuring the AVI? ==
  It is likely that the GND is not connected during the measurement, or that the wire connected to the GND is loose.
--= 7. Troubleshooting =
++= 8. Troubleshooting =
  This section provides some known troubleshooting tips.
@@ -2733,7 +2733,7 @@
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--== 7.1 Downlink isn't working. How can I solve this? ==
++== 8.1 Downlink isn't working. How can I solve this? ==
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@@ -2746,7 +2746,7 @@
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--== 7.2 Having trouble uploading an image? ==
++== 8.2 Having trouble uploading an image? ==
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@@ -2758,7 +2758,7 @@
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--== 7.3 Why can't I join TTN in the US915 /AU915 bands? ==
++== 8.3 Why can't I join TTN in the US915 /AU915 bands? ==
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@@ -2768,7 +2768,7 @@
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--== 7.4 Why can the LT-22222-LA perform uplink normally, but cannot receive downlink? ==
++== 8.4 Why can the LT-22222-LA perform uplink normally, but cannot receive downlink? ==
  The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue.
@@ -2775,7 +2775,7 @@
  Use this command to synchronize their counts: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resettingthedownlinkpacketcount"]]
--= 8. Ordering information =
++= 9. Ordering information =
  (% style="color:#4f81bd" %)**LT-22222-LA-XXX:**
@@ -2792,7 +2792,7 @@
  * (% style="color:red" %)**IN865**(%%): LT with frequency bands IN865
  * (% style="color:red" %)**CN779**(%%): LT with frequency bands CN779
--= 9. Package information =
++= 10. Package information =
  (% style="color:#037691" %)**Package Includes**:
@@ -2807,7 +2807,7 @@
  * Package Size / pcs : 145×80×50 mm
  * Weight / pcs : 180 g
--= 10. Support =
++= 11. Support =
  * (((
@@ -2819,7 +2819,7 @@
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--= 11. Reference =
++= 12. Reference =
  * 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]]