Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 104.2 >
edited by Xiaoling
on 2022/11/12 17:51
To version < 90.2 >
edited by Xiaoling
on 2022/08/18 11:36
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -15,16 +15,13 @@
15 15  
16 16  = 1.Introduction =
17 17  
18 -
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
22 22  
23 23  
24 -(((
25 25  The Dragino (% style="color:blue" %)**LT series I/O Modules**(%%) are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as:** (% style="color:blue" %)analog current Input, analog voltage input(%%)**(% style="color:blue" %), **relay output**, **digital input**(%%) and (% style="color:blue" %)**digital output**(%%) etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
26 26  )))
27 -)))
28 28  
29 29  (((
30 30  The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
... ... @@ -39,7 +39,7 @@
39 39  )))
40 40  
41 41  (((
42 -1) If user's area has LoRaWAN service coverage, they can just install the I/O controller and configure it to connect the LoRaWAN provider via wireless.
39 +1) If user’s area has LoRaWAN service coverage, they can just install the I/O controller and configure it to connect the LoRaWAN provider via wireless.
43 43  )))
44 44  
45 45  (((
... ... @@ -60,7 +60,7 @@
60 60  (((
61 61  
62 62  
63 -(% style="color:#037691" %)**Hardware System:**
60 +**Hardware System:**
64 64  )))
65 65  
66 66  * (((
... ... @@ -85,7 +85,7 @@
85 85  (((
86 86  
87 87  
88 -(% style="color:#037691" %)**Interface for Model: LT22222-L:**
85 +**Interface for Model: LT22222-L:**
89 89  )))
90 90  
91 91  * (((
... ... @@ -110,7 +110,7 @@
110 110  (((
111 111  
112 112  
113 -(% style="color:#037691" %)**LoRa Spec:**
110 +**LoRa Spec:**
114 114  )))
115 115  
116 116  * (((
... ... @@ -180,7 +180,7 @@
180 180  
181 181  * LoRaWAN Class A & Class C protocol
182 182  * Optional Customized LoRa Protocol
183 -* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
180 +* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865
184 184  * AT Commands to change parameters
185 185  * Remote configure parameters via LoRa Downlink
186 186  * Firmware upgradable via program port
... ... @@ -188,6 +188,8 @@
188 188  
189 189  
190 190  
188 +
189 +
191 191  == 1.4  Applications ==
192 192  
193 193  
... ... @@ -200,6 +200,8 @@
200 200  
201 201  
202 202  
202 +
203 +
203 203  == 1.5 Hardware Variants ==
204 204  
205 205  
... ... @@ -216,17 +216,14 @@
216 216  
217 217  
218 218  
220 +
219 219  = 2. Power ON Device =
220 220  
221 221  
222 -(((
223 223  The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
224 -)))
225 225  
226 226  (((
227 227  PWR will on when device is properly powered.
228 -
229 -
230 230  )))
231 231  
232 232  [[image:1653297104069-180.png]]
... ... @@ -235,7 +235,6 @@
235 235  
236 236  = 3. Operation Mode =
237 237  
238 -
239 239  == 3.1 How it works? ==
240 240  
241 241  
... ... @@ -280,21 +280,18 @@
280 280  
281 281  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
282 282  
283 -**Add APP EUI in the application.**
280 +Add APP EUI in the application.
284 284  
285 285  [[image:1653297955910-247.png||height="321" width="716"]]
286 286  
287 287  
288 -**Add APP KEY and DEV EUI**
285 +Add APP KEY and DEV EUI
289 289  
290 290  [[image:1653298023685-319.png]]
291 291  
292 292  
293 -
294 294  (((
295 295  (% style="color:blue" %)**Step 2**(%%): Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
296 -
297 -
298 298  )))
299 299  
300 300  [[image:1653298044601-602.png||height="405" width="709"]]
... ... @@ -303,7 +303,6 @@
303 303  
304 304  == 3.3 Uplink Payload ==
305 305  
306 -
307 307  There are five working modes + one interrupt mode on LT for different type application:
308 308  
309 309  * (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
... ... @@ -313,14 +313,9 @@
313 313  * (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
314 314  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
315 315  
316 -
317 -
318 318  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
319 319  
320 -
321 -(((
322 322  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
323 -)))
324 324  
325 325  [[image:image-20220523174024-3.png]]
326 326  
... ... @@ -336,7 +336,7 @@
336 336  * DI is for digital input. DIx=1: high or float, DIx=0: low.
337 337  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
338 338  
339 -(% style="color:red" %)**Note: DI3 and DO3 bit are not valid for LT-22222-L**
327 +(% style="color:red" %)Note: DI3 and DO3 bit are not valid for LT-22222-L
340 340  
341 341  For example if payload is: [[image:image-20220523175847-2.png]]
342 342  
... ... @@ -371,14 +371,10 @@
371 371  ** DO1 is high in case there is load between DO1 and V+.
372 372  ** DO1 LED is off in both case
373 373  
374 -
375 -
376 376  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
377 377  
378 378  
379 -(((
380 380  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
381 -)))
382 382  
383 383  (((
384 384  Total : 11 bytes payload
... ... @@ -398,7 +398,7 @@
398 398  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
399 399  
400 400  (((
401 -(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
385 +(% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
402 402  )))
403 403  
404 404  (((
... ... @@ -410,22 +410,16 @@
410 410  (% class="box infomessage" %)
411 411  (((
412 412  (((
413 -(((
414 414  **AT+MOD=2**
415 -)))
416 416  
417 -(((
418 418  **ATZ**
419 419  )))
420 420  )))
421 -)))
422 422  
423 423  (((
424 424  
425 425  
426 426  (% style="color:#4f81bd" %)**AT Commands for counting:**
427 -
428 -
429 429  )))
430 430  
431 431  (((
... ... @@ -449,7 +449,6 @@
449 449  
450 450  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
451 451  
452 -
453 453  **LT22222-L**: This mode the DI1 is used as a counting pin.
454 454  
455 455  [[image:image-20220523181246-5.png]]
... ... @@ -467,7 +467,7 @@
467 467  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
468 468  
469 469  (((
470 -(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
447 +(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
471 471  )))
472 472  
473 473  
... ... @@ -478,15 +478,11 @@
478 478  (% class="box infomessage" %)
479 479  (((
480 480  (((
481 -(((
482 482  **AT+MOD=3**
483 -)))
484 484  
485 -(((
486 486  **ATZ**
487 487  )))
488 488  )))
489 -)))
490 490  
491 491  (((
492 492  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -497,13 +497,9 @@
497 497  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
498 498  
499 499  
500 -(((
501 501  **LT22222-L**: This mode the DI1 is used as a counting pin.
502 -)))
503 503  
504 -(((
505 505  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.
506 -)))
507 507  
508 508  [[image:image-20220523181903-8.png]]
509 509  
... ... @@ -519,7 +519,7 @@
519 519  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
520 520  
521 521  (((
522 -(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
491 +(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
523 523  )))
524 524  
525 525  (((
... ... @@ -531,17 +531,14 @@
531 531  (% class="box infomessage" %)
532 532  (((
533 533  (((
534 -(((
535 535  **AT+MOD=4**
536 -)))
537 537  
538 -(((
539 539  **ATZ**
540 540  )))
541 541  )))
542 -)))
543 543  
544 544  
510 +
545 545  (((
546 546  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
547 547  )))
... ... @@ -583,7 +583,7 @@
583 583  )))
584 584  
585 585  (((
586 -(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
552 +(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
587 587  )))
588 588  
589 589  (((
... ... @@ -595,15 +595,11 @@
595 595  (% class="box infomessage" %)
596 596  (((
597 597  (((
598 -(((
599 599  **AT+MOD=5**
600 -)))
601 601  
602 -(((
603 603  **ATZ**
604 604  )))
605 605  )))
606 -)))
607 607  
608 608  (((
609 609  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -633,7 +633,6 @@
633 633  
634 634  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
635 635  
636 -
637 637  **Example:**
638 638  
639 639  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)
... ... @@ -646,7 +646,6 @@
646 646  
647 647  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
648 648  
649 -
650 650  **Example:**
651 651  
652 652  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
... ... @@ -665,7 +665,6 @@
665 665  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
666 666  
667 667  
668 -
669 669  (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
670 670  
671 671  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
... ... @@ -714,7 +714,6 @@
714 714  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
715 715  
716 716  
717 -
718 718  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
719 719  
720 720  [[image:image-20220524090249-3.png]]
... ... @@ -726,7 +726,6 @@
726 726  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
727 727  
728 728  
729 -
730 730  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
731 731  
732 732  [[image:image-20220524090456-4.png]]
... ... @@ -740,7 +740,6 @@
740 740  00000101: Means both DI1 and DI2 trigger are enabled.
741 741  
742 742  
743 -
744 744  (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
745 745  
746 746  Downlink command to poll MOD6 status:
... ... @@ -756,36 +756,27 @@
756 756  (((
757 757  
758 758  
759 -**Decoder for TTN/loraserver/ChirpStack**:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
715 +**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/]]
716 +
717 +
760 760  )))
761 761  
762 762  
763 -
764 764  == 3.4 ​Configure LT via AT or Downlink ==
765 765  
766 -
767 -(((
768 768  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
769 -)))
770 770  
771 771  (((
772 -(((
773 773  There are two kinds of Commands:
774 774  )))
775 -)))
776 776  
777 -* (% style="color:blue" %)**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: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
729 +* (% 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: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
778 778  
779 -* (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
731 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
780 780  
781 -
782 -
783 783  === 3.4.1 Common Commands ===
784 784  
785 -
786 -(((
787 787  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>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
788 -)))
789 789  
790 790  
791 791  
... ... @@ -794,12 +794,11 @@
794 794  
795 795  ==== 3.4.2.1 Set Transmit Interval ====
796 796  
797 -
798 798  Set device uplink interval.
799 799  
800 800  * (% style="color:#037691" %)**AT Command:**
801 801  
802 -(% style="color:blue" %)**AT+TDC=N **
748 +**AT+TDC=N **
803 803  
804 804  
805 805  **Example: **AT+TDC=30000. Means set interval to 30 seconds
... ... @@ -807,18 +807,18 @@
807 807  
808 808  * (% style="color:#037691" %)**Downlink Payload (prefix 0x01):**
809 809  
810 -(% style="color:blue" %)**0x01 aa bb cc  **(%%)** ~/~/ Same as AT+TDC=0x(aa bb cc)**
756 +**0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
811 811  
812 812  
813 813  
760 +
814 814  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
815 815  
816 -
817 817  Set work mode.
818 818  
819 819  * (% style="color:#037691" %)**AT Command:**
820 820  
821 -(% style="color:blue" %)**AT+MOD=N  **
767 +**AT+MOD=N  **
822 822  
823 823  
824 824  **Example**: AT+MOD=2. Set work mode to Double DI counting mode
... ... @@ -826,13 +826,13 @@
826 826  
827 827  * (% style="color:#037691" %)**Downlink Payload (prefix 0x0A):**
828 828  
829 -(% style="color:blue" %)**0x0A aa  **(%%)** ** ~/~/ Same as AT+MOD=aa
775 +**0x0A aa    ** ~/~/ Same as AT+MOD=aa
830 830  
831 831  
832 832  
779 +
833 833  ==== 3.4.2.3 Poll an uplink ====
834 834  
835 -
836 836  * (% style="color:#037691" %)**AT Command:**
837 837  
838 838  There is no AT Command to poll uplink
... ... @@ -840,30 +840,29 @@
840 840  
841 841  * (% style="color:#037691" %)**Downlink Payload (prefix 0x08):**
842 842  
843 -(% style="color:blue" %)**0x08 FF  **(%%)** **~/~/ Poll an uplink
789 +**0x08 FF     **~/~/ Poll an uplink
844 844  
845 -
846 846  **Example**: 0x08FF, ask device to send an Uplink
847 847  
848 848  
849 849  
795 +
850 850  ==== 3.4.2.4 Enable Trigger Mode ====
851 851  
852 -
853 853  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
854 854  
855 855  * (% style="color:#037691" %)**AT Command:**
856 856  
857 -(% style="color:blue" %)**AT+ADDMOD6=1 or 0**
802 +**AT+ADDMOD6=1 or 0**
858 858  
859 -(% style="color:red" %)**1:** (%%)Enable Trigger Mode
804 +1: Enable Trigger Mode
860 860  
861 -(% style="color:red" %)**0: **(%%)Disable Trigger Mode
806 +0: Disable Trigger Mode
862 862  
863 863  
864 864  * (% style="color:#037691" %)**Downlink Payload (prefix 0x0A 06):**
865 865  
866 -(% style="color:blue" %)**0x0A 06 aa    **(%%) ~/~/ Same as AT+ADDMOD6=aa
811 +**0x0A 06 aa    ** ~/~/ Same as AT+ADDMOD6=aa
867 867  
868 868  
869 869  
... ... @@ -870,7 +870,6 @@
870 870  
871 871  ==== 3.4.2.5 Poll trigger settings ====
872 872  
873 -
874 874  Poll trigger settings,
875 875  
876 876  * (% style="color:#037691" %)**AT Command:**
... ... @@ -880,18 +880,18 @@
880 880  
881 881  * (% style="color:#037691" %)**Downlink Payload (prefix 0x AB 06):**
882 882  
883 -(% style="color:blue" %)**0xAB 06  ** (%%) ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command
827 +**0xAB 06         **~/~/ Poll trigger settings, device will uplink trigger settings once receive this command
884 884  
885 885  
886 886  
831 +
887 887  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
888 888  
889 -
890 890  Enable Disable DI1/DI2/DI2 as trigger,
891 891  
892 892  * (% style="color:#037691" %)**AT Command:**
893 893  
894 -(% style="color:blue" %)**Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
838 +**Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
895 895  
896 896  
897 897  **Example:**
... ... @@ -900,22 +900,22 @@
900 900  
901 901  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 02):**
902 902  
903 -(% style="color:blue" %)**0xAA 02 aa bb   ** (%%) ~/~/ Same as AT+DTRI=aa,bb
847 +**0xAA 02 aa bb        **~/~/ Same as AT+DTRI=aa,bb
904 904  
905 905  
906 906  
851 +
907 907  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
908 908  
909 -
910 910  Set DI1 or DI3(for LT-33222-L) trigger.
911 911  
912 912  * (% style="color:#037691" %)**AT Command:**
913 913  
914 -(% style="color:blue" %)**AT+TRIG1=a,b**
858 +**AT+TRIG1=a,b**
915 915  
916 -(% style="color:red" %)**a :** (%%)Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
860 +a : Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
917 917  
918 -(% style="color:red" %)**b :** (%%)delay timing.
862 +b : delay timing.
919 919  
920 920  
921 921  **Example:**
... ... @@ -924,25 +924,22 @@
924 924  
925 925  
926 926  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
871 +* **0x09 01 aa bb cc    ** ~/~/ same as AT+TRIG1=aa,0x(bb cc)
927 927  
928 -(% style="color:blue" %)**0x09 01 aa bb cc    ** (%%) ~/~/ same as AT+TRIG1=aa,0x(bb cc)
929 -
930 -
931 -
932 932  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
933 933  
934 -
935 935  Set DI2 trigger.
936 936  
937 937  * (% style="color:#037691" %)**AT Command:**
938 938  
939 -(% style="color:blue" %)**AT+TRIG2=a,b**
879 +**AT+TRIG2=a,b**
940 940  
941 -(% style="color:red" %)**a :** (%%)Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
942 942  
943 -(% style="color:red" %)**b :** (%%)delay timing.
882 +a : Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
944 944  
884 +b : delay timing.
945 945  
886 +
946 946  **Example:**
947 947  
948 948  AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
... ... @@ -950,67 +950,67 @@
950 950  
951 951  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 02 ):**
952 952  
953 -(% style="color:blue" %)**0x09 02 aa bb cc   ** (%%)~/~/ same as AT+TRIG1=aa,0x(bb cc)
894 +**0x09 02 aa bb cc           **~/~/ same as AT+TRIG1=aa,0x(bb cc)
954 954  
955 955  
956 956  
898 +
957 957  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
958 958  
959 -
960 960  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
961 961  
962 962  * (% style="color:#037691" %)**AT Command**
963 963  
964 -(% style="color:blue" %)**AT+ACLIM**
905 +**AT+ACLIM**
965 965  
966 966  
967 967  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 01 )**
968 968  
969 -(% style="color:blue" %)**0x AA 01 aa bb cc dd ee ff gg hh        ** (%%) ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
910 +**0x AA 01 aa bb cc dd ee ff gg hh        ** ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
970 970  
971 971  
972 972  
914 +
973 973  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
974 974  
975 -
976 976  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
977 977  
978 978  * (% style="color:#037691" %)**AT Command**
979 979  
980 -(% style="color:blue" %)**AT+AVLIM    **(%%)** See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
921 +**AT+AVLIM  See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
981 981  
982 982  
983 983  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 00 )**
984 984  
985 -(% style="color:blue" %)**0x AA 00 aa bb cc dd ee ff gg hh    ** (%%) ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
926 +**0x AA 00 aa bb cc dd ee ff gg hh    ** ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
986 986  
987 987  
988 988  
930 +
989 989  ==== 3.4.2.11 Trigger – Set minimum interval ====
990 990  
991 -
992 992  Set AV and AC trigger minimum interval, system won't response to the second trigger within this set time after the first trigger.
993 993  
994 994  * (% style="color:#037691" %)**AT Command**
995 995  
996 -(% style="color:blue" %)**AT+ATDC=5        ** (%%)Device won't response the second trigger within 5 minute after the first trigger.
937 +**AT+ATDC=5        ** Device won't response the second trigger within 5 minute after the first trigger.
997 997  
998 998  
999 999  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAC )**
1000 1000  
1001 -(% style="color:blue" %)**0x AC aa bb   **(%%) ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
942 +**0x AC aa bb   ** ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
1002 1002  
1003 1003  (((
1004 1004  
1005 1005  
1006 -(% style="color:red" %)**Note: ATDC setting must be more than 5min**
947 +(% style="color:red" %)Note: ATDC setting must be more than 5min
1007 1007  )))
1008 1008  
1009 1009  
1010 1010  
952 +
1011 1011  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
1012 1012  
1013 -
1014 1014  * (% style="color:#037691" %)**AT Command**
1015 1015  
1016 1016  There is no AT Command to control Digital Output
... ... @@ -1017,7 +1017,7 @@
1017 1017  
1018 1018  
1019 1019  * (% style="color:#037691" %)**Downlink Payload (prefix 0x02)**
1020 -* (% style="color:blue" %)**0x02 aa bb cc     ** (%%)~/~/ Set DO1/DO2/DO3 output
961 +* **0x02 aa bb cc     **~/~/ Set DO1/DO2/DO3 output
1021 1021  
1022 1022  (((
1023 1023  If payload = 0x02010001, while there is load between V+ and DOx, it means set DO1 to low, DO2 to high and DO3 to low.
... ... @@ -1030,18 +1030,18 @@
1030 1030  [[image:image-20220524092754-5.png]]
1031 1031  
1032 1032  (((
1033 -(% style="color:red" %)**Note: For LT-22222-L, there is no DO3, the last byte can use any value.**
974 +(% style="color:red" %)Note: For LT-22222-L, there is no DO3, the last byte can use any value.
1034 1034  )))
1035 1035  
1036 1036  (((
1037 -(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
978 +(% style="color:red" %)Device will upload a packet if downlink code executes successfully.
1038 1038  )))
1039 1039  
1040 1040  
1041 1041  
983 +
1042 1042  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
1043 1043  
1044 -
1045 1045  * (% style="color:#037691" %)**AT Command**
1046 1046  
1047 1047  There is no AT Command to control Digital Output
... ... @@ -1049,7 +1049,7 @@
1049 1049  
1050 1050  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA9)**
1051 1051  
1052 -(% style="color:blue" %)**0xA9 aa bb cc     **(%%) ~/~/ Set DO1/DO2/DO3 output with time control
993 +**0xA9 aa bb cc     **~/~/ Set DO1/DO2/DO3 output with time control
1053 1053  
1054 1054  
1055 1055  This is to control the digital output time of DO pin. Include four bytes:
... ... @@ -1078,11 +1078,11 @@
1078 1078  [[image:image-20220524093351-8.png]]
1079 1079  
1080 1080  
1081 -(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:
1022 +(% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
1082 1082  
1083 1083   Latching time. Unit: ms
1084 1084  
1085 -(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1026 +Device will upload a packet if downlink code executes successfully.
1086 1086  
1087 1087  
1088 1088  **Example payload:**
... ... @@ -1105,9 +1105,9 @@
1105 1105  
1106 1106  
1107 1107  
1049 +
1108 1108  ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1109 1109  
1110 -
1111 1111  * (% style="color:#037691" %)**AT Command:**
1112 1112  
1113 1113  There is no AT Command to control Relay Output
... ... @@ -1115,7 +1115,7 @@
1115 1115  
1116 1116  * (% style="color:#037691" %)**Downlink Payload (prefix 0x03):**
1117 1117  
1118 -(% style="color:blue" %)**0x03 aa bb     ** (%%)~/~/ Set RO1/RO2 output
1059 +**0x03 aa bb     **~/~/ Set RO1/RO2 output
1119 1119  
1120 1120  
1121 1121  (((
... ... @@ -1130,7 +1130,7 @@
1130 1130  [[image:image-20220524093724-9.png]]
1131 1131  )))
1132 1132  
1133 -(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1074 +Device will upload a packet if downlink code executes successfully.
1134 1134  
1135 1135  
1136 1136  
... ... @@ -1137,7 +1137,6 @@
1137 1137  
1138 1138  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1139 1139  
1140 -
1141 1141  * (% style="color:#037691" %)**AT Command:**
1142 1142  
1143 1143  There is no AT Command to control Relay Output
... ... @@ -1145,7 +1145,7 @@
1145 1145  
1146 1146  * (% style="color:#037691" %)**Downlink Payload (prefix 0x05):**
1147 1147  
1148 -(% style="color:blue" %)**0x05 aa bb cc dd     ** (%%)~/~/ Set RO1/RO2 relay with time control
1088 +**0x05 aa bb cc dd     **~/~/ Set RO1/RO2 relay with time control
1149 1149  
1150 1150  
1151 1151  This is to control the relay output time of relay. Include four bytes:
... ... @@ -1161,12 +1161,12 @@
1161 1161  
1162 1162  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1163 1163  
1164 -[[image:image-20221008095908-1.png||height="364" width="564"]]
1104 +[[image:image-20220714135731-1.png||height="406" width="627"]]
1165 1165  
1166 1166  
1167 -(% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
1107 +(% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
1168 1168  
1169 -(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1109 +Device will upload a packet if downlink code executes successfully.
1170 1170  
1171 1171  
1172 1172  **Example payload:**
... ... @@ -1189,183 +1189,82 @@
1189 1189  
1190 1190  
1191 1191  
1132 +
1192 1192  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1193 1193  
1194 -
1195 1195  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1196 1196  
1197 1197  * (% style="color:#037691" %)**AT Command:**
1198 1198  
1199 -(% style="color:blue" %)**AT+VOLMAX   ** (%%)~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1139 +**AT+VOLMAX   ** ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1200 1200  
1201 1201  
1202 1202  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA5):**
1203 1203  
1204 -(% style="color:blue" %)**0xA5 aa bb cc   ** (%%)~/~/ Same as AT+VOLMAX=(aa bb),cc
1144 +**0xA5 aa bb cc   **~/~/ Same as AT+VOLMAX=(aa bb),cc
1205 1205  
1206 1206  
1207 1207  
1148 +
1208 1208  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1209 1209  
1210 -
1211 1211  * (% style="color:#037691" %)**AT Command:**
1212 1212  
1213 -(% style="color:blue" %)**AT+SETCNT=aa,(bb cc dd ee) **
1153 +**AT+SETCNT=aa,(bb cc dd ee) **
1214 1214  
1215 -(% style="color:red" %)**aa:**(%%) 1: Set count1; 2: Set count2; 3: Set AV1 count
1155 +aa: 1: Set count1,
1216 1216  
1217 -(% style="color:red" %)**bb cc dd ee: **(%%)number to be set
1157 +2: Set count2,
1218 1218  
1159 +3: Set AV1 count
1219 1219  
1161 +Bb cc dd ee: number to be set
1162 +
1163 +
1220 1220  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA8):**
1221 1221  
1222 -(% style="color:blue" %)**0x A8 aa bb cc dd ee     ** (%%)~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
1166 +**0x A8 aa bb cc dd ee     **~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
1223 1223  
1224 1224  
1225 1225  
1170 +
1226 1226  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1227 1227  
1228 -
1229 1229  Clear counting for counting mode
1230 1230  
1231 1231  * (% style="color:#037691" %)**AT Command:**
1232 1232  
1233 -(% style="color:blue" %)**AT+CLRCOUNT **(%%) ~/~/ clear all counting
1177 +**AT+CLRCOUNT ** ~/~/ clear all counting
1234 1234  
1235 1235  
1236 1236  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA6):**
1237 1237  
1238 -(% style="color:blue" %)**0x A6 01    ** (%%)~/~/ clear all counting
1182 +**0x A6 01    ** ~/~/ clear all counting
1239 1239  
1240 1240  
1241 1241  
1186 +
1242 1242  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1243 1243  
1244 -
1245 1245  * (% style="color:#037691" %)**AT Command:**
1246 1246  
1247 -(% style="color:blue" %)**AT+COUTIME=60  **(%%)~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
1191 +**AT+COUTIME=60  **~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
1248 1248  
1249 1249  
1250 1250  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA7):**
1251 1251  
1252 -(% style="color:blue" %)**0x A7 aa bb cc     ** (%%)~/~/ same as AT+COUTIME =aa bb cc,
1196 +**0x A7 aa bb cc     **~/~/ same as AT+COUTIME =aa bb cc,
1253 1253  
1254 1254  (((
1255 1255  range: aa bb cc:0 to 16777215,  (unit:second)
1256 -)))
1257 1257  
1258 -
1259 -
1260 -==== 3.4.2.20 Reset save DR DO state ====
1261 -
1262 -
1263 -* (% style="color:#037691" %)**AT Command:**
1264 -
1265 -(% style="color:blue" %)**AT+RODORET=1    **(%%)~/~/ RODO will close when the device joining the network. (default)
1266 -
1267 -(% style="color:blue" %)**AT+RODORET=0    **(%%)~/~/ After the device is reset, the previously saved RODO state (only MOD2 to MOD5) is read, and its state is not changed when it is reconnected to the network.
1268 -
1269 -
1270 -* (% style="color:#037691" %)**Downlink Payload (prefix 0xAD):**
1271 -
1272 -(% style="color:blue" %)**0x AD aa      ** (%%)~/~/ same as AT+RODORET =aa
1273 -
1274 -
1275 -
1276 -==== 3.4.2.21 Encrypted payload ====
1277 -
1278 -
1279 -* (% style="color:#037691" %)**AT Command:**
1280 -
1281 -(% style="color:blue" %)**AT+DECRYPT=1  ** (%%)~/~/ The payload is uploaded without encryption
1282 -
1283 -(% style="color:blue" %)**AT+DECRYPT=0    **(%%)~/~/  Encrypt when uploading payload (default)
1284 -
1285 -
1286 -
1287 -==== 3.4.2.22 Get sensor value ====
1288 -
1289 -
1290 -* (% style="color:#037691" %)**AT Command:**
1291 -
1292 -(% style="color:blue" %)**AT+GETSENSORVALUE=0    **(%%)~/~/ The serial port gets the reading of the current sensor
1293 -
1294 -(% style="color:blue" %)**AT+GETSENSORVALUE=1    **(%%)~/~/ The serial port gets the current sensor reading and uploads it.
1295 -
1296 -
1297 -
1298 -==== 3.4.2.23 Resets the downlink packet count ====
1299 -
1300 -
1301 -* (% style="color:#037691" %)**AT Command:**
1302 -
1303 -(% style="color:blue" %)**AT+DISFCNTCHECK=0   **(%%)~/~/ When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
1304 -
1305 -(% style="color:blue" %)**AT+DISFCNTCHECK=1   **(%%)~/~/ When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
1306 -
1307 -
1308 -
1309 -
1310 -==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1311 -
1312 -
1313 -* (% style="color:#037691" %)**AT Command:**
1314 -
1315 -(% style="color:blue" %)**AT+DISMACANS=0**   (%%) ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
1316 -
1317 -(% style="color:blue" %)**AT+DISMACANS=1**  (%%) ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
1318 -
1319 -
1320 -* (% style="color:#037691" %)**Downlink Payload **(%%)**:**
1321 -
1322 -(% style="color:blue" %)**0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
1323 -
1324 -
1325 -
1326 -
1327 -==== 3.4.2.25 Copy downlink to uplink ====
1328 -
1329 -
1330 -* (% style="color:#037691" %)**AT Command**(%%)**:**
1331 -
1332 -(% style="color:blue" %)**AT+RPL=5**   (%%) ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
1333 -
1334 -Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
1335 -
1336 -
1337 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
1338 -
1339 -For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1340 -
1341 -
1342 -
1343 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
1344 -
1345 -For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1346 -
1347 -
1348 -
1349 -==== 3.4.2.26 Query version number and frequency band 、TDC ====
1350 -
1351 -
1352 -* (((
1353 -(% style="color:#037691" %)**Downlink Payload**(%%)**:**
1354 -
1355 -(% style="color:blue" %)**26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1356 -
1357 1357  
1358 1358  )))
1359 1359  
1360 -**Example：**
1361 1361  
1362 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
1363 1363  
1364 -
1365 -
1366 1366  == 3.5 Integrate with Mydevice ==
1367 1367  
1368 -
1369 1369  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:
1370 1370  
1371 1371  (((
... ... @@ -1374,8 +1374,6 @@
1374 1374  
1375 1375  (((
1376 1376  (% style="color:blue" %)**Step 2**(%%): To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1377 -
1378 -
1379 1379  )))
1380 1380  
1381 1381  [[image:image-20220719105525-1.png||height="377" width="677"]]
... ... @@ -1415,10 +1415,8 @@
1415 1415  
1416 1416  == 3.6 Interface Detail ==
1417 1417  
1418 -
1419 1419  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1420 1420  
1421 -
1422 1422  Support NPN Type sensor
1423 1423  
1424 1424  [[image:1653356991268-289.png]]
... ... @@ -1427,7 +1427,6 @@
1427 1427  
1428 1428  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1429 1429  
1430 -
1431 1431  (((
1432 1432  The DI port of LT-22222-L can support NPN or PNP output sensor.
1433 1433  )))
... ... @@ -1434,9 +1434,7 @@
1434 1434  
1435 1435  (((
1436 1436  (((
1437 -Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high.
1438 -
1439 -
1271 +Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high
1440 1440  )))
1441 1441  )))
1442 1442  
... ... @@ -1461,10 +1461,10 @@
1461 1461  )))
1462 1462  
1463 1463  * (((
1464 -Connect sensor's output to DI1-
1296 +Connect sensor’s output to DI1-
1465 1465  )))
1466 1466  * (((
1467 -Connect sensor's VCC to DI1+.
1299 +Connect sensor’s VCC to DI1+.
1468 1468  )))
1469 1469  
1470 1470  (((
... ... @@ -1472,17 +1472,15 @@
1472 1472  )))
1473 1473  
1474 1474  (((
1475 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1**+** / 1K.**
1307 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1476 1476  )))
1477 1477  
1478 1478  (((
1479 -If** DI1+ **= **12v**, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1311 +If DI1+ = 12v, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1480 1480  )))
1481 1481  
1482 1482  (((
1483 1483  
1484 -
1485 -
1486 1486  )))
1487 1487  
1488 1488  (((
... ... @@ -1494,10 +1494,10 @@
1494 1494  )))
1495 1495  
1496 1496  * (((
1497 -Connect sensor's output to DI1+
1327 +Connect sensor’s output to DI1+
1498 1498  )))
1499 1499  * (((
1500 -Connect sensor's GND DI1-.
1330 +Connect sensor’s GND DI1-.
1501 1501  )))
1502 1502  
1503 1503  (((
... ... @@ -1514,8 +1514,6 @@
1514 1514  
1515 1515  (((
1516 1516  
1517 -
1518 -
1519 1519  )))
1520 1520  
1521 1521  (((
... ... @@ -1527,10 +1527,10 @@
1527 1527  )))
1528 1528  
1529 1529  * (((
1530 -Connect sensor's output to DI1+ with a serial 50K resistor
1358 +Connect sensor’s output to DI1+ with a serial 50K resistor
1531 1531  )))
1532 1532  * (((
1533 -Connect sensor's GND DI1-.
1361 +Connect sensor’s GND DI1-.
1534 1534  )))
1535 1535  
1536 1536  (((
... ... @@ -1549,7 +1549,6 @@
1549 1549  
1550 1550  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1551 1551  
1552 -
1553 1553  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1554 1554  
1555 1555  [[image:1653357531600-905.png]]
... ... @@ -1558,7 +1558,6 @@
1558 1558  
1559 1559  === 3.6.4 Analog Input Interface ===
1560 1560  
1561 -
1562 1562  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:
1563 1563  
1564 1564  
... ... @@ -1571,13 +1571,13 @@
1571 1571  We take the wind speed sensor as an example for reference only.
1572 1572  
1573 1573  
1574 -(% style="color:blue" %)**Specifications of the wind speed sensor:**
1400 +**Specifications of the wind speed sensor:**
1575 1575  
1576 -**Red:  12~~24v**
1402 +Red:  12~~24v
1577 1577  
1578 -**Yellow:  4~~20mA**
1404 +Yellow:  4~~20mA
1579 1579  
1580 -**Black:  GND**
1406 +Black:  GND
1581 1581  
1582 1582  
1583 1583  **Connection diagram:**
... ... @@ -1590,7 +1590,6 @@
1590 1590  
1591 1591  === 3.6.5 Relay Output ===
1592 1592  
1593 -
1594 1594  (((
1595 1595  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:
1596 1596  )))
... ... @@ -1597,7 +1597,6 @@
1597 1597  
1598 1598  [[image:image-20220524100215-9.png]]
1599 1599  
1600 -
1601 1601  [[image:image-20220524100215-10.png||height="382" width="723"]]
1602 1602  
1603 1603  
... ... @@ -1604,7 +1604,6 @@
1604 1604  
1605 1605  == 3.7 LEDs Indicators ==
1606 1606  
1607 -
1608 1608  [[image:image-20220524100748-11.png]]
1609 1609  
1610 1610  
... ... @@ -1611,18 +1611,10 @@
1611 1611  
1612 1612  = 4. Use AT Command =
1613 1613  
1614 -
1615 1615  == 4.1 Access AT Command ==
1616 1616  
1617 -
1618 -(((
1619 1619  LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
1620 -)))
1621 1621  
1622 -(((
1623 -
1624 -)))
1625 -
1626 1626  [[image:1653358238933-385.png]]
1627 1627  
1628 1628  
... ... @@ -1650,7 +1650,7 @@
1650 1650  )))
1651 1651  
1652 1652  (((
1653 -AT+<CMD>=?       :  Get the value
1468 +AT+<CMD>=?       : Get the value
1654 1654  )))
1655 1655  
1656 1656  (((
... ... @@ -1678,11 +1678,11 @@
1678 1678  )))
1679 1679  
1680 1680  (((
1681 -AT+APPSKEY:  Get or Set the Application Session Key
1496 +AT+APPSKEY: Get or Set the Application Session Key
1682 1682  )))
1683 1683  
1684 1684  (((
1685 -AT+APPEUI:  Get or Set the Application EUI
1500 +AT+APPEUI: Get or Set the Application EUI
1686 1686  )))
1687 1687  
1688 1688  (((
... ... @@ -1694,7 +1694,7 @@
1694 1694  )))
1695 1695  
1696 1696  (((
1697 -AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1512 +AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1698 1698  )))
1699 1699  
1700 1700  (((
... ... @@ -1730,7 +1730,7 @@
1730 1730  )))
1731 1731  
1732 1732  (((
1733 -AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1548 +AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1734 1734  )))
1735 1735  
1736 1736  (((
... ... @@ -1774,7 +1774,7 @@
1774 1774  )))
1775 1775  
1776 1776  (((
1777 -AT+VER:  Get current image version and Frequency Band
1592 +AT+VER: Get current image version and Frequency Band
1778 1778  )))
1779 1779  
1780 1780  (((
... ... @@ -1782,7 +1782,7 @@
1782 1782  )))
1783 1783  
1784 1784  (((
1785 -AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1600 +AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1786 1786  )))
1787 1787  
1788 1788  (((
... ... @@ -1825,48 +1825,45 @@
1825 1825  
1826 1826  == 4.2 Common AT Command Sequence ==
1827 1827  
1828 -
1829 1829  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1830 1830  
1831 1831  (((
1832 1832  
1833 1833  
1834 -(((
1835 -(% style="color:blue" %)**If device has not joined network yet:**
1648 +**If device has not joined network yet:**
1836 1836  )))
1837 -)))
1838 1838  
1839 1839  (((
1840 -(% style="background-color:#dcdcdc" %)**123456**
1652 +(% style="background-color:#dcdcdc" %)123456
1841 1841  )))
1842 1842  
1843 1843  (((
1844 -(% style="background-color:#dcdcdc" %)**AT+FDR**
1656 +(% style="background-color:#dcdcdc" %)AT+FDR
1845 1845  )))
1846 1846  
1847 1847  (((
1848 -(% style="background-color:#dcdcdc" %)**123456**
1660 +(% style="background-color:#dcdcdc" %)123456
1849 1849  )))
1850 1850  
1851 1851  (((
1852 -(% style="background-color:#dcdcdc" %)**AT+NJM=0**
1664 +(% style="background-color:#dcdcdc" %)AT+NJM=0
1853 1853  )))
1854 1854  
1855 1855  (((
1856 -(% style="background-color:#dcdcdc" %)**ATZ**
1668 +(% style="background-color:#dcdcdc" %)ATZ
1857 1857  )))
1858 1858  
1859 1859  
1860 1860  (((
1861 -(% style="color:blue" %)**If device already joined network:**
1673 +**If device already joined network:**
1862 1862  )))
1863 1863  
1864 1864  (((
1865 -(% style="background-color:#dcdcdc" %)**AT+NJM=0**
1677 +(% style="background-color:#dcdcdc" %)AT+NJM=0
1866 1866  )))
1867 1867  
1868 1868  (((
1869 -(% style="background-color:#dcdcdc" %)**ATZ**
1681 +(% style="background-color:#dcdcdc" %)ATZ
1870 1870  )))
1871 1871  
1872 1872  
... ... @@ -1876,57 +1876,55 @@
1876 1876  (((
1877 1877  
1878 1878  
1879 -(((
1880 -(% style="background-color:#dcdcdc" %)**123456**(%%)  ~/~/ Enter Password to have AT access.
1691 +(% style="background-color:#dcdcdc" %)123456(%%)  Enter Password to have AT access.
1881 1881  )))
1882 -)))
1883 1883  
1884 1884  (((
1885 -(% style="background-color:#dcdcdc" %)** AT+FDR**(%%)  ~/~/ Reset Parameters to Factory Default, Keys Reserve
1695 +(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1886 1886  )))
1887 1887  
1888 1888  (((
1889 -(% style="background-color:#dcdcdc" %)** 123456**(%%)  ~/~/ Enter Password to have AT access.
1699 +(% style="background-color:#dcdcdc" %) 123456(%%)  Enter Password to have AT access.
1890 1890  )))
1891 1891  
1892 1892  (((
1893 -(% style="background-color:#dcdcdc" %)** AT+CLASS=C**(%%)  ~/~/ Set to work in CLASS C
1703 +(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1894 1894  )))
1895 1895  
1896 1896  (((
1897 -(% style="background-color:#dcdcdc" %)** AT+NJM=0**(%%)  ~/~/ Set to ABP mode
1707 +(% style="background-color:#dcdcdc" %) AT+NJM=0(%%)  Set to ABP mode
1898 1898  )))
1899 1899  
1900 1900  (((
1901 -(% style="background-color:#dcdcdc" %) **AT+ADR=0**(%%)  ~/~/ Set the Adaptive Data Rate Off
1711 +(% style="background-color:#dcdcdc" %) AT+ADR=0(%%)  Set the Adaptive Data Rate Off
1902 1902  )))
1903 1903  
1904 1904  (((
1905 -(% style="background-color:#dcdcdc" %)** AT+DR=5**(%%)  ~/~/ Set Data Rate
1715 +(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1906 1906  )))
1907 1907  
1908 1908  (((
1909 -(% style="background-color:#dcdcdc" %)** AT+TDC=60000**(%%)  ~/~/ Set transmit interval to 60 seconds
1719 +(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1910 1910  )))
1911 1911  
1912 1912  (((
1913 -(% style="background-color:#dcdcdc" %)** AT+CHS=868400000**(%%)  ~/~/ Set transmit frequency to 868.4Mhz
1723 +(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
1914 1914  )))
1915 1915  
1916 1916  (((
1917 -(% style="background-color:#dcdcdc" %)** AT+RX2FQ=868400000**(%%)  ~/~/ Set RX2Frequency to 868.4Mhz (according to the result from server)
1727 +(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%)  Set RX2Frequency to 868.4Mhz (according to the result from server)
1918 1918  )))
1919 1919  
1920 1920  (((
1921 -(% style="background-color:#dcdcdc" %)** AT+RX2DR=5**(%%)** ** ~/~/ Set RX2DR to match the downlink DR from server. see below
1731 +(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1922 1922  )))
1923 1923  
1924 1924  (((
1925 -(% style="background-color:#dcdcdc" %)** AT+DADDR=26 01 1A F1** (%%) ~/~/ Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1735 +(% style="background-color:#dcdcdc" %) AT+DADDR=26 01 1A F1 (%%) Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1926 1926  )))
1927 1927  
1928 1928  (((
1929 -(% style="background-color:#dcdcdc" %)** ATZ**         (%%) ~/~/ Reset MCU
1739 +(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1930 1930  
1931 1931  
1932 1932  )))
... ... @@ -1936,16 +1936,10 @@
1936 1936  )))
1937 1937  
1938 1938  (((
1939 -**~1. Make sure the device is set to ABP mode in the IoT Server.**
1940 -
1941 -**2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.**
1942 -
1943 -**3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?
1944 -dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1945 -
1946 -**4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5**
1947 -
1948 -
1749 +(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1750 +2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1751 +3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1752 +4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1949 1949  )))
1950 1950  
1951 1951  (((
... ... @@ -1959,19 +1959,13 @@
1959 1959  
1960 1960  === 4.2.3 Change to Class A ===
1961 1961  
1766 +If sensor JOINED
1767 +(% style="background-color:#dcdcdc" %)AT+CLASS=A
1768 +ATZ
1962 1962  
1963 -(((
1964 -(% style="color:blue" %)**If sensor JOINED:**
1965 1965  
1966 -(% style="background-color:#dcdcdc" %)**AT+CLASS=A
1967 -ATZ**
1968 -)))
1969 -
1970 -
1971 -
1972 1972  = 5. FAQ =
1973 1973  
1974 -
1975 1975  == 5.1 How to upgrade the image? ==
1976 1976  
1977 1977  
... ... @@ -1988,18 +1988,14 @@
1988 1988  
1989 1989  (((
1990 1990  (% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1991 -(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AADKXQ2v5ZT-S3sxdmbvE7UAa/LT-22222-L/image?dl=0&subfolder_nav_tracking=1]].
1789 +(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1992 1992  (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
1993 1993  
1994 1994  
1995 -(((
1996 1996  (% style="color:blue" %)**For LT-22222-L**(%%):
1997 1997  Hold down the PRO button and then momentarily press the RST reset button and the (% style="color:red" %)**DO1 led**(%%) will change from OFF to ON. When (% style="color:red" %)**DO1 LED**(%%) is on, it means the device is in download mode.
1998 1998  )))
1999 1999  
2000 -
2001 -)))
2002 -
2003 2003   [[image:image-20220524103407-12.png]]
2004 2004  
2005 2005  [[image:image-20220524103429-13.png]]
... ... @@ -2009,7 +2009,6 @@
2009 2009  
2010 2010  (% style="color:red" %)**Notice**(%%): In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
2011 2011  
2012 -
2013 2013  [[image:1653360054704-518.png||height="186" width="745"]]
2014 2014  
2015 2015  
... ... @@ -2018,8 +2018,6 @@
2018 2018  
2019 2019  
2020 2020  == 5.2 How to change the LoRa Frequency Bands/Region? ==
2021 -
2022 -
2023 2023  )))
2024 2024  )))
2025 2025  
... ... @@ -2030,10 +2030,7 @@
2030 2030  (((
2031 2031  
2032 2032  
2033 -
2034 2034  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2035 -
2036 -
2037 2037  )))
2038 2038  
2039 2039  (((
... ... @@ -2051,39 +2051,33 @@
2051 2051  )))
2052 2052  
2053 2053  (((
2054 -(% style="color:blue" %)**Step1**(%%):  Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
2055 -
2056 -
1842 +(% style="color:#4f81bd" %)**Step1**(%%): Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
2057 2057  )))
2058 2058  
2059 2059  (((
2060 2060  [[image:1653360231087-571.png||height="401" width="727"]]
2061 -
2062 -
2063 2063  )))
2064 2064  
2065 2065  (((
2066 -(% style="color:red" %)**Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.**
1850 +(% style="color:red" %)Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.
2067 2067  )))
2068 2068  
2069 2069  
2070 -
2071 2071  (((
2072 -(% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2073 -
2074 -
1855 +(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2075 2075  )))
2076 2076  
2077 2077  (((
2078 -(% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2079 -(% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2080 -(% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2081 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2082 -(% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2083 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2084 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2085 -(% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2086 -(% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
1859 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1860 +(% style="background-color:#dcdcdc" %)AT+FDR(%%)  Reset Parameters to Factory Default, Keys Reserve
1861 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1862 +(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%) Set to ABP mode
1863 +(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%) Set the Adaptive Data Rate Off
1864 +(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1865 +(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%) Set transmit interval to 60 seconds
1866 +(% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
1867 +(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%)  Set Device Address to 26 01 1A F1
1868 +(% style="background-color:#dcdcdc" %)ATZ        (%%) Reset MCU
2087 2087  )))
2088 2088  
2089 2089  
... ... @@ -2094,21 +2094,16 @@
2094 2094  [[image:1653360498588-932.png||height="485" width="726"]]
2095 2095  
2096 2096  
2097 -
2098 2098  == 5.4 Can I see counting event in Serial? ==
2099 2099  
2100 -
2101 2101  (((
2102 -User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn't support AT+DEBUG. User can update to latest firmware first.
1882 +User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn’t support AT+DEBUG. User can update to latest firmware first.
2103 2103  
2104 2104  
2105 -
2106 2106  == 5.5 Can i use point to point communication for LT-22222-L? ==
2107 2107  
1887 +Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
2108 2108  
2109 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]  ，this is [[firmware>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AADKXQ2v5ZT-S3sxdmbvE7UAa/LT-22222-L/image?dl=0&subfolder_nav_tracking=1]].
2110 -
2111 -
2112 2112  
2113 2113  )))
2114 2114  
... ... @@ -2115,7 +2115,6 @@
2115 2115  (((
2116 2116  == 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2117 2117  
2118 -
2119 2119  If the device is not shut down, but directly powered off.
2120 2120  
2121 2121  It will default that this is a power-off state.
... ... @@ -2125,33 +2125,12 @@
2125 2125  After restart, the status before power failure will be read from flash.
2126 2126  
2127 2127  
2128 -
2129 -== 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2130 -
2131 -
2132 -LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
2133 -
2134 -
2135 -[[image:image-20221006170630-1.png||height="610" width="945"]]
2136 -
2137 -
2138 -== 5.8 Can LT22222-L save RO state? ==
2139 -
2140 -
2141 -Firmware version needs to be no less than 1.6.0.
2142 -
2143 -
2144 -
2145 2145  = 6. Trouble Shooting =
2146 -
2147 -
2148 2148  )))
2149 2149  
2150 2150  (((
2151 2151  (((
2152 2152  == 6.1 Downlink doesn't work, how to solve it? ==
2153 -
2154 -
2155 2155  )))
2156 2156  )))
2157 2157  
... ... @@ -2162,10 +2162,7 @@
2162 2162  (((
2163 2163  
2164 2164  
2165 -
2166 2166  == 6.2 Have trouble to upload image. ==
2167 -
2168 -
2169 2169  )))
2170 2170  
2171 2171  (((
... ... @@ -2175,10 +2175,7 @@
2175 2175  (((
2176 2176  
2177 2177  
2178 -
2179 2179  == 6.3 Why I can't join TTN in US915 /AU915 bands? ==
2180 -
2181 -
2182 2182  )))
2183 2183  
2184 2184  (((
... ... @@ -2186,7 +2186,6 @@
2186 2186  )))
2187 2187  
2188 2188  
2189 -
2190 2190  = 7. Order Info =
2191 2191  
2192 2192  
... ... @@ -2204,8 +2204,6 @@
2204 2204  * (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2205 2205  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2206 2206  
2207 -
2208 -
2209 2209  = 8. Packing Info =
2210 2210  
2211 2211  
... ... @@ -2223,24 +2223,18 @@
2223 2223  * Package Size / pcs : 14.5 x 8 x 5 cm
2224 2224  * Weight / pcs : 170g
2225 2225  
2226 -
2227 -
2228 2228  = 9. Support =
2229 2229  
2230 -
2231 2231  * (((
2232 2232  Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
2233 2233  )))
2234 2234  * (((
2235 2235  Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2236 -
2237 -
2238 -
2239 2239  )))
2240 2240  
2241 2241  = 10. Reference​​​​​ =
2242 2242  
2243 -
2244 2244  * LT-22222-L: [[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]]
2245 -* [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
1984 +* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1985 +* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
2246 2246  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
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