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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 59.1
edited by Kilight Cao
on 2025/07/03 15:34
Change comment: There is no comment for this version

Summary

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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 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.
33 +(% style="color:blue" %)**LT-22222-LA I/O Controller**(%%) support (% style="color:blue" %)**OTA upgrade**(%%) via private LoRa protocol for easy maintaining.
34 34  )))
35 35  
36 36  (((
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98 98  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
99 99  * AT Commands to change parameters
100 100  * Remotely configure parameters via LoRaWAN Downlink
101 -* Firmware upgradable via program port
101 +* Support wireless OTA update firmware
102 102  * Counting
103 103  
104 104  == 1.4 Applications ==
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511 511  
512 512  
513 513  
514 +
514 514  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
515 515  
516 516  
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552 552  
553 553  
554 554  
556 +
555 555  (((
556 556  **To activate this mode, run the following AT commands:**
557 557  )))
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649 649  
650 650  
651 651  
654 +
652 652  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
653 653  
654 654  
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714 714  
715 715  
716 716  
720 +
717 717  === 3.3.6 AT+ADDMOD~=6 (Trigger Mode, Optional) ===
718 718  
719 719  
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2297 2297  
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2299 2299  
2304 +
2300 2300  (% style="color:blue" %)**Example 4**(%%): Connecting to a Dry Contact sensor
2301 2301  
2302 2302  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.
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2594 2594  
2595 2595  
2596 2596  
2597 -
2598 2598  (((
2599 2599  (((
2600 2600  == 7.2 How to change the LoRaWAN frequency band/region? ==
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2604 2604  )))
2605 2605  
2606 2606  (((
2607 -You can follow the introductions on [[how to upgrade the image>>doc:]]. When downloading, select the required image file.
2611 +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.
2608 2608  )))
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