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Last modified by Kilight Cao on 2025/07/03 15:34
From version 52.2
edited by Kilight Cao
on 2025/07/03 14:56
Change comment: There is no comment for this version
To version 51.1
edited by Kilight Cao
on 2025/07/03 14:56
Change comment: Uploaded new attachment "1653358355238-883.png", version {1}

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505 505  
506 506  
507 507  
508 -
509 509  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
510 510  
511 511  
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543 543  
544 544  
545 545  
546 -
547 547  (((
548 548  **To activate this mode, run the following AT commands:**
549 549  )))
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637 637  
638 638  
639 639  
640 -
641 641  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
642 642  
643 643  
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702 -
703 703  === 3.3.6 AT+ADDMOD~=6 (Trigger Mode, Optional) ===
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705 705  
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2281 2281  
2282 -
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.
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2409 2409  (((
2410 2410  You can use a USB-to-TTL adapter/converter along with a 3.5mm Program Cable to connect the LT-22222-LA to a PC, as shown below.
2411 2411  
2412 -(% title="Click and drag to resize" %)​​​
2407 +(% title="Click and drag to resize" %)​​
2413 2413  
2414 2414  
2415 2415  )))
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2418 2418  On the PC, you need to set the (% style="color:#4f81bd" %)**serial tool **(%%)(such as [[PuTTY>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]] or [[SecureCRT>>https://www.vandyke.com/cgi-bin/releases.php?product=securecrt]]) to a baud rate of (% style="color:green" %)**9600**(%%) to access the serial console of LT-22222-L. Access to AT commands is disabled by default, and a password (default: (% style="color:green" %)**123456**)(%%) must be entered to enable AT command access, as shown below:
2419 2419  )))
2420 2420  
2421 -[[image:1653358355238-883.png]]
2422 2422  
2423 2423  
2424 2424  (((