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... ... @@ -4,13 +4,8 @@
4 4  **LT-22222-L LoRa IO Controller User Manual **
5 5  
6 6  
7 -**Table of Contents:**
8 8  
9 -{{toc/}}
10 10  
11 -
12 -
13 -
14 14  = 1.Introduction =
15 15  
16 16  == 1.1 What is LT Series I/O Controller ==
... ... @@ -335,8 +335,11 @@
335 335  
336 336  The AVI1 is also used for counting. AVI1 is used to monitor the voltage. It will check the voltage **every 60s**, if voltage is higher or lower than VOLMAX mV, the AVI1 Counting increase 1, so AVI1 counting can be used to measure a machine working hour.
337 337  
338 -[[image:image-20220523181903-8.png]]
339 339  
334 +(% border="1" style="background-color:#f7faff; width:601px" %)
335 +|(% style="width:111px" %)Size(bytes)|(% style="width:85px" %)4|(% style="width:130px" %)4|(% style="width:92px" %)1|(% style="width:94px" %)1|(% style="width:86px" %)1
336 +|(% style="width:111px" %)Value|(% style="width:85px" %)COUNT1|(% style="width:130px" %)AVI1 Counting|(% style="width:92px" %)DIDORO*|(% style="width:94px" %)Reserve|(% style="width:86px" %)MOD
337 +
340 340  (((
341 341  (% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
342 342  )))
... ... @@ -347,120 +347,138 @@
347 347  * FIRST: Indicate this is the first packet after join network.
348 348  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
349 349  
350 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
348 +Note: DO3 is not valid for LT-22222-L.
351 351  
352 -**To use this mode, please run:**
353 353  
354 -(% class="box infomessage" %)
355 -(((
356 -**AT+MOD=4**
357 -)))
351 +To use this mode, please run:
358 358  
359 -(% class="box infomessage" %)
360 -(((
361 -**ATZ**
362 -)))
353 +AT+MOD=4
363 363  
355 +ATZ
364 364  
357 +
358 +
365 365  Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
366 366  
367 -**Plus below command for AVI1 Counting:**
361 +Plus below command for AVI1 Counting:
368 368  
369 -(% class="box infomessage" %)
370 -(((
371 -**AT+SETCNT=3,60   (set AVI Count to 60)**
372 -)))
363 +AT+SETCNT=3,60   (set AVI Count to 60)
373 373  
374 -(% class="box infomessage" %)
375 -(((
376 -**AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
377 -)))
365 +AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)
378 378  
379 -(% class="box infomessage" %)
380 -(((
381 -**AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
382 -)))
367 +AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)
383 383  
384 -(% class="box infomessage" %)
385 -(((
386 -**AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
387 -)))
369 +AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)
388 388  
389 -=== 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
390 390  
372 +
373 +1.
374 +11.
375 +111. AT+MOD=5, Single DI Counting + 2 x AVI + 1 x ACI
376 +
377 +**LT33222-L**: This mode the DI3 is used as a counting pin.
378 +
391 391  **LT22222-L**: This mode the DI1 is used as a counting pin.
392 392  
393 -[[image:image-20220523182334-9.png]]
394 394  
395 -(((
396 -(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
397 -)))
382 +(% border="1" style="background-color:#f7faff" %)
383 +|Size(bytes)|2|2|2|2|1|1|1
384 +|Value|(((
385 +AVI1
398 398  
387 +voltage
388 +)))|(((
389 +AVI2
390 +
391 +voltage
392 +)))|(((
393 +ACI1
394 +
395 +Current
396 +)))|COUNT1|DIDORO*|(((
397 +Reserve
398 +
399 +
400 +)))|MOD
401 +
402 +**DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
403 +
404 +(% border="1" style="background-color:#f7faff" %)
405 +|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
406 +|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
407 +
399 399  * RO is for relay. ROx=1 : close，ROx=0 always open.
400 400  * FIRST: Indicate this is the first packet after join network.
401 401  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
402 402  
403 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
412 +Note: DO3 is not valid for LT-22222-L.
404 404  
405 -**To use this mode, please run:**
406 406  
407 -(% class="box infomessage" %)
408 -(((
409 -**AT+MOD=5**
410 -)))
415 +To use this mode, please run:
411 411  
412 -(% class="box infomessage" %)
413 -(((
414 -**ATZ**
415 -)))
417 +AT+MOD=5
416 416  
419 +ATZ
420 +
421 +
417 417  Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
418 418  
419 -=== 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
420 420  
421 -(% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
422 422  
426 +
427 +
428 +1.
429 +11.
430 +111. AT+ADDMOD=6. (Trigger Mode, Optional)
431 +
432 +**This mode is an optional mode for trigger purpose. It can run together with other mode.**
433 +
423 423  For example, if user has configured below commands:
424 424  
425 -* **AT+MOD=1 ** **~-~->** The normal working mode
426 -* **AT+ADDMOD6=1**   **~-~->** Enable trigger
436 +* AT+MOD=1   à The normal working mode
437 +* AT+ADDMOD6=1    à Enable trigger
427 427  
428 428  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
429 429  
430 -1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN (% style="color:#4f81bd" %)**unconfirmed**(%%) data type
431 -1. Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first uplink use payload specify in this mod (mod=6), the second packets use the normal mod payload(MOD=1 for above settings). Both Uplinks use LoRaWAN (% style="color:#4f81bd" %)**CONFIRMED data type.**
441 +1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN **unconfirmed** data type
442 +1. Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first uplink use payload specify in this mod (mod=6), the second packets use the normal mod payload(MOD=1 for above settings). Both Uplinks use LoRaWAN **CONFIRMED data type.**
432 432  
433 433  **AT Command to set Trigger Condition**:
434 434  
435 -(% style="color:#4f81bd" %)**Trigger base on voltage**:
446 +**Trigger base on voltage**:
436 436  
437 437  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
438 438  
439 -**Example:**
450 +Example:
440 440  
441 441  AT+AVLIM=3000,6000,0,2000   (If AVI1 voltage lower than 3v or higher than 6v. or AV2 voltage is higher than 2v, LT will trigger Uplink)
442 442  
443 443  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
444 444  
445 -(% style="color:#4f81bd" %)**Trigger base on current**:
446 446  
457 +**Trigger base on current**:
458 +
447 447  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
448 448  
449 -**Example:**
461 +Example:
450 450  
451 451  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
452 452  
453 -(% style="color:#4f81bd" %)**Trigger base on DI status**:
454 454  
466 +**Trigger base on DI status**:
467 +
455 455  DI status trigger Flag.
456 456  
457 457  Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >
458 458  
459 -**Example:**
472 +Example:
460 460  
461 461  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
462 462  
463 463  
477 +
478 +
479 +
464 464  **Downlink Command to set Trigger Condition**
465 465  
466 466  Type Code: 0xAA. Downlink command same as AT Command [[AT+AVLIM, AT+ACLIM>>path:#AT_Trigger]]
... ... @@ -479,8 +479,9 @@
479 479  
480 480   Yy4 yy4: AC2 or AV2 high limit.
481 481  
482 -**Example1**: AA 00 13 88 00 00 00 00 00 00
483 483  
499 +Example1: AA 00 13 88 00 00 00 00 00 00
500 +
484 484  Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
485 485  
486 486  Example2: AA 02 01 00
... ... @@ -487,41 +487,134 @@
487 487  
488 488  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
489 489  
490 -(% style="color:#4f81bd" %)**Trigger Settings Payload Explanation:**
491 491  
508 +
509 +
510 +**Trigger Settings Payload Explanation:**
511 +
492 492  MOD6 Payload : total 11 bytes payload
493 493  
494 -[[image:image-20220524085923-1.png]]
514 +(% border="1" style="background-color:#f7faff" %)
515 +|Size(bytes)|1|1|1|6|1|1
516 +|Value|(((
517 +TRI_A
495 495  
496 -(% style="color:#4f81bd" %)**TRI FLAG1**(%%) is a combination to show if trigger is set for this part. Totally 1byte as below
519 +FLAG
520 +)))|(((
521 +TRI_A
497 497  
498 -[[image:image-20220524090106-2.png]]
523 +Status
524 +)))|(((
525 +TRI_DI
499 499  
527 +FLAG+STA
528 +)))|Reserve|Enable/Disable MOD6|(((
529 +MOD
530 +
531 +(6)
532 +)))
533 +
534 +**TRI FLAG1** is a combination to show if trigger is set for this part. Totally 1byte as below
535 +
536 +(% border="1" style="background-color:#f7faff" %)
537 +|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
538 +|(((
539 +AV1_
540 +
541 +LOW
542 +)))|(((
543 +AV1_
544 +
545 +HIGH
546 +)))|(((
547 +AV2_
548 +
549 +LOW
550 +)))|(((
551 +AV2_
552 +
553 +HIGH
554 +)))|(((
555 +AC1_
556 +
557 +LOW
558 +)))|(((
559 +AC1_
560 +
561 +HIGH
562 +)))|(((
563 +AC2_
564 +
565 +LOW
566 +)))|(((
567 +AC2_
568 +
569 +HIGH
570 +)))
571 +
500 500  * Each bits shows if the corresponding trigger has been configured.
501 501  
502 -**Example:**
574 +Example:
503 503  
504 504  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
505 505  
506 506  
507 -(% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
579 +**TRI Status1** is a combination to show which condition is trigger. Totally 1byte as below
508 508  
509 -[[image:image-20220524090249-3.png]]
581 +(% border="1" style="background-color:#f7faff" %)
582 +|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
583 +|(((
584 +AV1_
510 510  
586 +LOW
587 +)))|(((
588 +AV1_
589 +
590 +HIGH
591 +)))|(((
592 +AV2_
593 +
594 +LOW
595 +)))|(((
596 +AV2_
597 +
598 +HIGH
599 +)))|(((
600 +AC1_
601 +
602 +LOW
603 +)))|(((
604 +AC1_
605 +
606 +HIGH
607 +)))|(((
608 +AC2_
609 +
610 +LOW
611 +)))|(((
612 +AC2_
613 +
614 +HIGH
615 +)))
616 +
511 511  * Each bits shows which status has been trigger on this uplink.
512 512  
513 -**Example:**
619 +Example:
514 514  
515 515  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
516 516  
517 517  
518 -(% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
519 519  
520 -[[image:image-20220524090456-4.png]]
521 521  
626 +**TRI_DI FLAG+STA **is a combination to show which condition is trigger. Totally 1byte as below
627 +
628 +(% border="1" style="background-color:#f7faff" %)
629 +|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
630 +|N/A|N/A|N/A|N/A|DI2_STATUS|DI2_FLAG|DI1_STATUS|DI1_FLAG
631 +
522 522  * Each bits shows which status has been trigger on this uplink.
523 523  
524 -**Example:**
634 +Example:
525 525  
526 526  00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
527 527  
... ... @@ -528,105 +528,104 @@
528 528  00000101: Means both DI1 and DI2 trigger are enabled.
529 529  
530 530  
531 -(% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
641 +**Enable/Disable MOD6 **: 0x01: MOD6 is enable. 0x00: MOD6 is disable.
532 532  
643 +
533 533  Downlink command to poll MOD6 status:
534 534  
535 -**AB 06**
646 +AB 06
536 536  
537 537  When device got this command, it will send the MOD6 payload.
538 538  
539 -=== 3.3.7 Payload Decoder ===
540 540  
541 -(((
651 +1.
652 +11.
653 +111. Payload Decoder
654 +
542 542  **Decoder for TTN/loraserver/ChirpStack**: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/]]
543 -)))
544 544  
545 -== 3.4 ​Configure LT via AT or Downlink ==
546 546  
547 -User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
548 548  
549 -(((
659 +
660 +
661 +
662 +
663 +1.
664 +11. ​Configure LT via AT or Downlink
665 +
666 +User can configure LT I/O Controller via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
667 +
550 550  There are two kinds of Commands:
551 -)))
552 552  
553 -* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
670 +* **Common Commands**: They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
554 554  
555 -* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
672 +* **Sensor Related Commands**: These commands are special designed for LT-22222-L.  User can see these commands below:
556 556  
557 -=== 3.4.1 Common Commands ===
674 +1.
675 +11.
676 +111. Common Commands:
558 558  
559 -They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>http://8.211.40.43:8080/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
678 +They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
560 560  
561 -=== 3.4.2 Sensor related commands ===
562 562  
563 -==== 3.4.2.1 Set Transmit Interval ====
681 +1.
682 +11.
683 +111. Sensor related commands:
564 564  
685 +==== Set Transmit Interval ====
686 +
565 565  Set device uplink interval.
566 566  
567 567  * AT Command:
568 568  
569 -(% class="box infomessage" %)
570 -(((
571 -**AT+TDC=N **
572 -)))
691 +AT+TDC=N
573 573  
574 -**Example: **AT+TDC=30000. Means set interval to 30 seconds
693 +Example: AT+TDC=30000. Means set interval to 30 seconds
575 575  
695 +
576 576  * Downlink Payload (prefix 0x01):
577 577  
578 -(% class="box infomessage" %)
579 -(((
580 -**0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
581 -)))
698 +0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)
582 582  
583 583  
584 -==== 3.4.2.2 Set Work Mode (AT+MOD) ====
701 +==== Set Work Mode (AT+MOD) ====
585 585  
586 586  Set work mode.
587 587  
588 588  * AT Command:
589 589  
590 -(% class="box infomessage" %)
591 -(((
592 -**AT+MOD=N  **
593 -)))
707 +AT+MOD=N 
594 594  
595 -**Example**: AT+MOD=2. Set work mode to Double DI counting mode
709 +Example: AT+MOD=2. Set work mode to Double DI counting mode
596 596  
711 +
597 597  * Downlink Payload (prefix 0x0A):
598 598  
599 -(% class="box infomessage" %)
600 -(((
601 -**0x0A aa     ~/~/ Same as AT+MOD=aa**
602 -)))
714 +0x0A aa     ~/~/ Same as AT+MOD=aa
603 603  
604 -==== 3.4.2.3 Poll an uplink ====
605 605  
717 +
718 +==== Poll an uplink ====
719 +
606 606  * AT Command:
607 607  
608 608  There is no AT Command to poll uplink
609 609  
724 +
610 610  * Downlink Payload (prefix 0x08):
611 611  
612 -(% class="box infomessage" %)
613 -(((
614 -**0x08 FF     ~/~/ Poll an uplink,**
615 -)))
727 +0x08 FF     ~/~/ Poll an uplink,
616 616  
617 -**Example**: 0x08FF, ask device to send an Uplink
729 +Example: 0x08FF, ask device to send an Uplink
618 618  
619 619  
620 -==== 3.4.2.4 Enable Trigger Mode ====
732 +==== Enable Trigger Mode ====
621 621  
622 -Use of trigger mode, please check [[ADDMOD6>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
734 +Use of trigger mode, please check [[ADDMOD6>>path:#MOD6]]
623 623  
624 624  * AT Command:
625 625  
626 -(% class="box infomessage" %)
627 -(((
628 -**AT+ADDMOD6=1 or 0**
629 -)))
738 +AT+ADDMOD6=1 or 0
630 630  
631 631  1: Enable Trigger Mode
632 632  
... ... @@ -1029,7 +1029,7 @@
1029 1029  
1030 1030  
1031 1031  
1032 -1.
1141 +1.
1033 1033  11. Integrate with Mydevice
1034 1034  
1035 1035  Mydevices provides a human friendly interface to show the sensor data, once we have data in TTN, we can use Mydevices to connect to TTN and see the data in Mydevices. Below are the steps:
... ... @@ -1087,7 +1087,7 @@
1087 1087  
1088 1088  
1089 1089  1.
1090 -11.
1199 +11.
1091 1091  111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
1092 1092  
1093 1093  The DI port of LT-22222-L can support NPN or PNP output sensor.
... ... @@ -1141,8 +1141,8 @@
1141 1141  If sensor output is 220v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1142 1142  
1143 1143  
1144 -1.
1145 -11.
1253 +1.
1254 +11.
1146 1146  111. Digital Output Port: DO1/DO2 /DO3
1147 1147  
1148 1148  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1153,7 +1153,7 @@
1153 1153  
1154 1154  
1155 1155  1.
1156 -11.
1265 +11.
1157 1157  111. Analog Input Interface
1158 1158  
1159 1159  The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is:
... ... @@ -1186,7 +1186,7 @@
1186 1186  
1187 1187  
1188 1188  1.
1189 -11.
1298 +11.
1190 1190  111. Relay Output
1191 1191  
1192 1192  The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
... ... @@ -1346,7 +1346,7 @@
1346 1346  
1347 1347  
1348 1348  
1349 -1.
1458 +1.
1350 1350  11. Common AT Command Sequence
1351 1351  111. Multi-channel ABP mode (Use with SX1301/LG308)
1352 1352  
... ... @@ -1369,8 +1369,8 @@
1369 1369  
1370 1370  ATZ
1371 1371  
1372 -1.
1373 -11.
1481 +1.
1482 +11.
1374 1374  111. Single-channel ABP mode (Use with LG01/LG02)
1375 1375  
1376 1376  123456   Enter Password to have AT access.
... ... @@ -1410,7 +1410,7 @@
1410 1410  
1411 1411  
1412 1412  1.
1413 -11.
1522 +11.
1414 1414  111. Change to Class A
1415 1415  
1416 1416  If sensor JOINED
... ... @@ -1425,7 +1425,7 @@
1425 1425  
1426 1426  1. FAQ
1427 1427  
1428 -1.
1537 +1.
1429 1429  11. How to upgrade the image?
1430 1430  
1431 1431  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
... ... @@ -1484,7 +1484,7 @@
1484 1484  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1485 1485  
1486 1486  
1487 -1.
1596 +1.
1488 1488  11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1489 1489  
1490 1490  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
... ... @@ -1543,7 +1543,7 @@
1543 1543  [[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work]]
1544 1544  
1545 1545  
1546 -1.
1655 +1.
1547 1547  11. Have trouble to upload image.
1548 1548  
1549 1549  See this link for trouble shooting:
... ... @@ -1551,7 +1551,7 @@
1551 1551  [[http:~~/~~/wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting>>url:http://wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting]]
1552 1552  
1553 1553  
1554 -1.
1663 +1.
1555 1555  11. Why I can’t join TTN in US915 /AU915 bands?
1556 1556  
1557 1557  It might be about the channels mapping. Please see this link for detail:
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