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Last modified by Kilight Cao on 2025/07/03 15:34
From version 59.1
edited by Kilight Cao
on 2025/07/03 15:34
Change comment: There is no comment for this version
To version 57.4
edited by Kilight Cao
on 2025/07/03 15:30
Change comment: There is no comment for this version

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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" %)**OTA upgrade**(%%) via private LoRa protocol for easy maintaining.
33 +SN50V3-LB/LS has a **built-in BLE module**, user can configure the sensor remotely via Mobile Phone. It also support **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 -* Support wireless OTA update firmware
101 +* Firmware upgradable via program port
102 102  * Counting
103 103  
104 104  == 1.4 Applications ==
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511 511  
512 512  
513 513  
514 -
515 515  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
516 516  
517 517  
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553 553  
554 554  
555 555  
556 -
557 557  (((
558 558  **To activate this mode, run the following AT commands:**
559 559  )))
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651 651  
652 652  
653 653  
654 -
655 655  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
656 656  
657 657  
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717 717  
718 718  
719 719  
720 -
721 721  === 3.3.6 AT+ADDMOD~=6 (Trigger Mode, Optional) ===
722 722  
723 723  
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2301 2301  
2302 2302  
2303 2303  
2304 -
2305 2305  (% style="color:blue" %)**Example 4**(%%): Connecting to a Dry Contact sensor
2306 2306  
2307 2307  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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2599 2599  
2600 2600  
2601 2601  
2597 +
2602 2602  (((
2603 2603  (((
2604 2604  == 7.2 How to change the LoRaWAN frequency band/region? ==
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2608 2608  )))
2609 2609  
2610 2610  (((
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.
2607 +You can follow the introductions on [[how to upgrade the image>>doc:]]. When downloading, select the required image file.
2612 2612  )))
2613 2613  
2614 2614  (((