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Last modified by Mengting Qiu on 2025/06/04 18:42
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edited by Xiaoling
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edited by Bei Jinggeng
on 2022/10/08 09:59
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Summary

Details

Page properties
Author
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1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
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1 1  (% style="text-align:center" %)
2 2  [[image:image-20220523163353-1.jpeg||height="604" width="500"]]
3 3  
4 -**LT-22222-L LoRa IO Controller User Manual **
5 5  
6 6  
7 7  **Table of Contents:**
... ... @@ -16,6 +16,7 @@
16 16  
17 17  = 1.Introduction =
18 18  
18 +
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
... ... @@ -37,11 +37,13 @@
37 37  )))
38 38  
39 39  (((
40 -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.
40 +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.
41 41  )))
42 42  
43 43  (((
44 44  2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
45 +
46 +
45 45  )))
46 46  
47 47  (((
... ... @@ -56,7 +56,7 @@
56 56  (((
57 57  
58 58  
59 -**Hardware System:**
61 +(% style="color:#037691" %)**Hardware System:**
60 60  )))
61 61  
62 62  * (((
... ... @@ -81,7 +81,7 @@
81 81  (((
82 82  
83 83  
84 -**Interface for Model: LT22222-L:**
86 +(% style="color:#037691" %)**Interface for Model: LT22222-L:**
85 85  )))
86 86  
87 87  * (((
... ... @@ -106,7 +106,7 @@
106 106  (((
107 107  
108 108  
109 -**LoRa Spec:**
111 +(% style="color:#037691" %)**LoRa Spec:**
110 110  )))
111 111  
112 112  * (((
... ... @@ -173,9 +173,10 @@
173 173  
174 174  == 1.3 Features ==
175 175  
178 +
176 176  * LoRaWAN Class A & Class C protocol
177 177  * Optional Customized LoRa Protocol
178 -* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865
181 +* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
179 179  * AT Commands to change parameters
180 180  * Remote configure parameters via LoRa Downlink
181 181  * Firmware upgradable via program port
... ... @@ -182,8 +182,10 @@
182 182  * Counting
183 183  
184 184  
188 +
185 185  == 1.4  Applications ==
186 186  
191 +
187 187  * Smart Buildings & Home Automation
188 188  * Logistics and Supply Chain Management
189 189  * Smart Metering
... ... @@ -192,8 +192,10 @@
192 192  * Smart Factory
193 193  
194 194  
200 +
195 195  == 1.5 Hardware Variants ==
196 196  
203 +
197 197  (% border="1" style="background-color:#f7faff; width:500px" %)
198 198  |(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
199 199  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
... ... @@ -207,13 +207,15 @@
207 207  
208 208  
209 209  
210 -
211 211  = 2. Power ON Device =
212 212  
219 +
213 213  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.
214 214  
215 215  (((
216 216  PWR will on when device is properly powered.
224 +
225 +
217 217  )))
218 218  
219 219  [[image:1653297104069-180.png]]
... ... @@ -222,21 +222,27 @@
222 222  
223 223  = 3. Operation Mode =
224 224  
234 +
225 225  == 3.1 How it works? ==
226 226  
237 +
227 227  (((
228 -The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on **TX LED** will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. **TX LED** will be on for 5 seconds after joined in network. When there is message from server, the **RX LED** will be on for 1 second. 
239 +The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on (% style="color:green" %)**TX LED**(%%) will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. (% style="color:green" %)**TX LED**(%%) will be on for 5 seconds after joined in network. When there is message from server, the RX LED will be on for 1 second. 
229 229  )))
230 230  
231 231  (((
232 -In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
243 +In case user can't set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
233 233  )))
234 234  
235 235  
247 +
236 236  == 3.2 Example to join LoRaWAN network ==
237 237  
250 +
238 238  (((
239 239  This chapter shows an example for how to join the TTN LoRaWAN Network. Below is the network structure, we use our LG308 as LoRaWAN gateway here. 
253 +
254 +
240 240  )))
241 241  
242 242  [[image:image-20220523172350-1.png||height="266" width="864"]]
... ... @@ -244,6 +244,8 @@
244 244  
245 245  (((
246 246  The LG308 is already set to connect to [[TTN network >>url:https://www.thethingsnetwork.org/]]. So what we need to do now is only configure register this device to TTN:
262 +
263 +
247 247  )))
248 248  
249 249  (((
... ... @@ -269,6 +269,7 @@
269 269  [[image:1653298023685-319.png]]
270 270  
271 271  
289 +
272 272  (((
273 273  (% 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.
274 274  )))
... ... @@ -279,18 +279,21 @@
279 279  
280 280  == 3.3 Uplink Payload ==
281 281  
300 +
282 282  There are five working modes + one interrupt mode on LT for different type application:
283 283  
284 -* **MOD1**: (default setting): 2 x ACI + 2AVI + DI + DO + RO
285 -* **MOD2**: Double DI Counting + DO + RO
286 -* **MOD3**: Single DI Counting + 2 x ACI + DO + RO
287 -* **MOD4**: Single DI Counting + 1 x Voltage Counting + DO + RO
288 -* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
289 -* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
303 +* (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
304 +* (% style="color:blue" %)**MOD2**(%%): Double DI Counting + DO + RO
305 +* (% style="color:blue" %)**MOD3**(%%): Single DI Counting + 2 x ACI + DO + RO
306 +* (% style="color:blue" %)**MOD4**(%%): Single DI Counting + 1 x Voltage Counting + DO + RO
307 +* (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
308 +* (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
290 290  
291 291  
311 +
292 292  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
293 293  
314 +
294 294  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
295 295  
296 296  [[image:image-20220523174024-3.png]]
... ... @@ -307,8 +307,9 @@
307 307  * DI is for digital input. DIx=1: high or float, DIx=0: low.
308 308  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
309 309  
310 -(% style="color:red" %)Note: DI3 and DO3 bit are not valid for LT-22222-L
311 311  
332 +(% style="color:red" %)**Note: DI3 and DO3 bit are not valid for LT-22222-L**
333 +
312 312  For example if payload is: [[image:image-20220523175847-2.png]]
313 313  
314 314  
... ... @@ -327,6 +327,7 @@
327 327  * [1] RO1 relay channel is close and the RO1 LED is ON.
328 328  * [0] RO2 relay channel is open and RO2 LED is OFF;
329 329  
352 +
330 330  **LT22222-L:**
331 331  
332 332  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -343,6 +343,8 @@
343 343  ** DO1 LED is off in both case
344 344  
345 345  
369 +
370 +
346 346  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
347 347  
348 348  
... ... @@ -366,7 +366,7 @@
366 366  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
367 367  
368 368  (((
369 -(% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
394 +(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
370 370  )))
371 371  
372 372  (((
... ... @@ -388,38 +388,39 @@
388 388  
389 389  
390 390  (% style="color:#4f81bd" %)**AT Commands for counting:**
416 +
417 +
391 391  )))
392 392  
393 393  (((
394 394  **For LT22222-L:**
395 -)))
396 396  
397 -(% class="box infomessage" %)
398 -(((
399 -(((
400 -**AT+TRIG1=0,100  (set DI1 port to trigger on low level, valid signal is 100ms) **
401 401  
402 -**AT+TRIG1=1,100  (set DI1 port to trigger on high level, valid signal is 100ms ) **
424 +(% style="color:blue" %)**AT+TRIG1=0,100**(%%)**  (set DI1 port to trigger on low level, valid signal is 100ms) **
403 403  
404 -**AT+TRIG2=0,100  (set DI2 port to trigger on low level, valid signal is 100ms) **
426 +(% style="color:blue" %)**AT+TRIG1=1,100**(%%)**  (set DI1 port to trigger on high level, valid signal is 100ms ) **
405 405  
406 -**AT+TRIG2=1,100  (set DI2 port to trigger on high level, valid signal is 100ms ) **
428 +(% style="color:blue" %)**AT+TRIG2=0,100**(%%)**  (set DI2 port to trigger on low level, valid signal is 100ms) **
407 407  
408 -**AT+SETCNT=1,60   (Set COUNT1 value to 60)**
430 +(% style="color:blue" %)**AT+TRIG2=1,100**(%%)**  (set DI2 port to trigger on high level, valid signal is 100ms ) **
409 409  
410 -**AT+SETCNT=2,60   (Set COUNT2 value to 60)**
432 +(% style="color:blue" %)**AT+SETCNT=1,60**(%%)**   (Set COUNT1 value to 60)**
433 +
434 +(% style="color:blue" %)**AT+SETCNT=2,60**(%%)**   (Set COUNT2 value to 60)**
411 411  )))
412 -)))
413 413  
414 414  
415 415  
416 416  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
417 417  
441 +
418 418  **LT22222-L**: This mode the DI1 is used as a counting pin.
419 419  
420 420  [[image:image-20220523181246-5.png]]
421 421  
422 422  (((
447 +
448 +
423 423  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
424 424  )))
425 425  
... ... @@ -430,9 +430,10 @@
430 430  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
431 431  
432 432  (((
433 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
459 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
434 434  )))
435 435  
462 +
436 436  (((
437 437  **To use counting mode, please run:**
438 438  )))
... ... @@ -473,7 +473,7 @@
473 473  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
474 474  
475 475  (((
476 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
503 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
477 477  )))
478 478  
479 479  (((
... ... @@ -534,7 +534,7 @@
534 534  )))
535 535  
536 536  (((
537 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
564 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
538 538  )))
539 539  
540 540  (((
... ... @@ -565,9 +565,10 @@
565 565  
566 566  For example, if user has configured below commands:
567 567  
568 -* **AT+MOD=1 ** **~-~->** The normal working mode
569 -* **AT+ADDMOD6=1**   **~-~->** Enable trigger
595 +* **AT+MOD=1 ** **~-~->**  The normal working mode
596 +* **AT+ADDMOD6=1**   **~-~->**  Enable trigger
570 570  
598 +
571 571  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
572 572  
573 573  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
... ... @@ -574,12 +574,15 @@
574 574  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.**
575 575  
576 576  
605 +
577 577  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
578 578  
608 +
579 579  (% style="color:#4f81bd" %)**Trigger base on voltage**:
580 580  
581 581  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
582 582  
613 +
583 583  **Example:**
584 584  
585 585  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)
... ... @@ -592,6 +592,7 @@
592 592  
593 593  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
594 594  
626 +
595 595  **Example:**
596 596  
597 597  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
... ... @@ -610,6 +610,7 @@
610 610  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
611 611  
612 612  
645 +
613 613  (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
614 614  
615 615  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
... ... @@ -653,11 +653,13 @@
653 653  
654 654  * Each bits shows if the corresponding trigger has been configured.
655 655  
689 +
656 656  **Example:**
657 657  
658 658  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
659 659  
660 660  
695 +
661 661  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
662 662  
663 663  [[image:image-20220524090249-3.png]]
... ... @@ -664,11 +664,13 @@
664 664  
665 665  * Each bits shows which status has been trigger on this uplink.
666 666  
702 +
667 667  **Example:**
668 668  
669 669  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
670 670  
671 671  
708 +
672 672  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
673 673  
674 674  [[image:image-20220524090456-4.png]]
... ... @@ -675,6 +675,7 @@
675 675  
676 676  * Each bits shows which status has been trigger on this uplink.
677 677  
715 +
678 678  **Example:**
679 679  
680 680  00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
... ... @@ -682,6 +682,7 @@
682 682  00000101: Means both DI1 and DI2 trigger are enabled.
683 683  
684 684  
723 +
685 685  (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
686 686  
687 687  Downlink command to poll MOD6 status:
... ... @@ -692,19 +692,20 @@
692 692  
693 693  
694 694  
734 +
695 695  === 3.3.7 Payload Decoder ===
696 696  
697 697  (((
698 698  
699 699  
700 -**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/]]
701 -
702 -
740 +**Decoder for TTN/loraserver/ChirpStack**:  [[https:~~/~~/www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0>>https://www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0]]
703 703  )))
704 704  
705 705  
744 +
706 706  == 3.4 ​Configure LT via AT or Downlink ==
707 707  
747 +
708 708  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
709 709  
710 710  (((
... ... @@ -716,8 +716,10 @@
716 716  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
717 717  
718 718  
759 +
719 719  === 3.4.1 Common Commands ===
720 720  
762 +
721 721  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]]
722 722  
723 723  
... ... @@ -724,80 +724,73 @@
724 724  
725 725  === 3.4.2 Sensor related commands ===
726 726  
769 +
727 727  ==== 3.4.2.1 Set Transmit Interval ====
728 728  
772 +
729 729  Set device uplink interval.
730 730  
731 731  * (% style="color:#037691" %)**AT Command:**
732 732  
733 -(% class="box infomessage" %)
734 -(((
735 735  **AT+TDC=N **
736 -)))
737 737  
779 +
738 738  **Example: **AT+TDC=30000. Means set interval to 30 seconds
739 739  
740 740  
741 741  * (% style="color:#037691" %)**Downlink Payload (prefix 0x01):**
742 742  
743 -(% class="box infomessage" %)
744 -(((
745 745  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
746 -)))
747 747  
748 748  
749 749  
789 +
750 750  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
751 751  
792 +
752 752  Set work mode.
753 753  
754 754  * (% style="color:#037691" %)**AT Command:**
755 755  
756 -(% class="box infomessage" %)
757 -(((
758 758  **AT+MOD=N  **
759 -)))
760 760  
799 +
761 761  **Example**: AT+MOD=2. Set work mode to Double DI counting mode
762 762  
763 763  
764 764  * (% style="color:#037691" %)**Downlink Payload (prefix 0x0A):**
765 765  
766 -(% class="box infomessage" %)
767 -(((
768 -**0x0A aa     ~/~/ Same as AT+MOD=aa**
769 -)))
805 +**0x0A aa    ** ~/~/ Same as AT+MOD=aa
770 770  
771 771  
772 772  
809 +
773 773  ==== 3.4.2.3 Poll an uplink ====
774 774  
775 -* (% style="color:#037691" %)AT Command:
776 776  
813 +* (% style="color:#037691" %)**AT Command:**
814 +
777 777  There is no AT Command to poll uplink
778 778  
779 779  
780 -* (% style="color:#037691" %)Downlink Payload (prefix 0x08):
818 +* (% style="color:#037691" %)**Downlink Payload (prefix 0x08):**
781 781  
782 -(% class="box infomessage" %)
783 -(((
784 -**0x08 FF     ~/~/ Poll an uplink,**
785 -)))
820 +**0x08 FF     **~/~/ Poll an uplink
786 786  
822 +
787 787  **Example**: 0x08FF, ask device to send an Uplink
788 788  
789 789  
790 790  
827 +
791 791  ==== 3.4.2.4 Enable Trigger Mode ====
792 792  
830 +
793 793  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
794 794  
795 -* (% style="color:#037691" %)AT Command:
833 +* (% style="color:#037691" %)**AT Command:**
796 796  
797 -(% class="box infomessage" %)
798 -(((
799 799  **AT+ADDMOD6=1 or 0**
800 -)))
801 801  
802 802  1: Enable Trigger Mode
803 803  
... ... @@ -804,38 +804,36 @@
804 804  0: Disable Trigger Mode
805 805  
806 806  
807 -* (% style="color:#037691" %)Downlink Payload (prefix 0x0A 06):
842 +* (% style="color:#037691" %)**Downlink Payload (prefix 0x0A 06):**
808 808  
809 -(% class="box infomessage" %)
810 -(((
811 -**0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
812 -)))
844 +**0x0A 06 aa    ** ~/~/ Same as AT+ADDMOD6=aa
813 813  
814 814  
815 815  
848 +
816 816  ==== 3.4.2.5 Poll trigger settings ====
817 817  
851 +
818 818  Poll trigger settings,
819 819  
820 -* (% style="color:#037691" %)AT Command:
854 +* (% style="color:#037691" %)**AT Command:**
821 821  
822 822  There is no AT Command for this feature.
823 823  
824 824  
825 -* (% style="color:#037691" %)Downlink Payload (prefix 0x AB 06):
859 +* (% style="color:#037691" %)**Downlink Payload (prefix 0x AB 06):**
826 826  
827 -(% class="box infomessage" %)
828 -(((
829 -**0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
830 -)))
861 +**0xAB 06         **~/~/ Poll trigger settings, device will uplink trigger settings once receive this command
831 831  
832 832  
833 833  
865 +
834 834  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
835 835  
868 +
836 836  Enable Disable DI1/DI2/DI2 as trigger,
837 837  
838 -* (% style="color:#037691" %)AT Command:
871 +* (% style="color:#037691" %)**AT Command:**
839 839  
840 840  **Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
841 841  
... ... @@ -844,7 +844,7 @@
844 844  
845 845  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
846 846  
847 -* (% style="color:#037691" %)Downlink Payload (prefix 0xAA 02):
880 +* (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 02):**
848 848  
849 849  **0xAA 02 aa bb        **~/~/ Same as AT+DTRI=aa,bb
850 850  
... ... @@ -853,9 +853,10 @@
853 853  
854 854  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
855 855  
889 +
856 856  Set DI1 or DI3(for LT-33222-L) trigger.
857 857  
858 -* (% style="color:#037691" %)AT Command:
892 +* (% style="color:#037691" %)**AT Command:**
859 859  
860 860  **AT+TRIG1=a,b**
861 861  
... ... @@ -876,6 +876,7 @@
876 876  
877 877  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
878 878  
913 +
879 879  Set DI2 trigger.
880 880  
881 881  * (% style="color:#037691" %)**AT Command:**
... ... @@ -902,6 +902,7 @@
902 902  
903 903  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
904 904  
940 +
905 905  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
906 906  
907 907  * (% style="color:#037691" %)**AT Command**
... ... @@ -918,6 +918,7 @@
918 918  
919 919  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
920 920  
957 +
921 921  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
922 922  
923 923  * (% style="color:#037691" %)**AT Command**
... ... @@ -934,11 +934,12 @@
934 934  
935 935  ==== 3.4.2.11 Trigger – Set minimum interval ====
936 936  
937 -Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
938 938  
975 +Set AV and AC trigger minimum interval, system won't response to the second trigger within this set time after the first trigger.
976 +
939 939  * (% style="color:#037691" %)**AT Command**
940 940  
941 -**AT+ATDC=5. Device won’t response the second trigger within 5 minute after the first trigger.**
979 +**AT+ATDC=5        ** Device won't response the second trigger within 5 minute after the first trigger.
942 942  
943 943  
944 944  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAC )**
... ... @@ -945,11 +945,18 @@
945 945  
946 946  **0x AC aa bb   ** ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
947 947  
986 +(((
987 +
948 948  
989 +(% style="color:red" %)**Note: ATDC setting must be more than 5min**
990 +)))
949 949  
950 950  
993 +
994 +
951 951  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
952 952  
997 +
953 953  * (% style="color:#037691" %)**AT Command**
954 954  
955 955  There is no AT Command to control Digital Output
... ... @@ -969,11 +969,11 @@
969 969  [[image:image-20220524092754-5.png]]
970 970  
971 971  (((
972 -(% style="color:red" %)Note: For LT-22222-L, there is no DO3, the last byte can use any value.
1017 +(% style="color:red" %)**Note: For LT-22222-L, there is no DO3, the last byte can use any value.**
973 973  )))
974 974  
975 975  (((
976 -(% style="color:red" %)Device will upload a packet if downlink code executes successfully.
1021 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
977 977  )))
978 978  
979 979  
... ... @@ -981,6 +981,7 @@
981 981  
982 982  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
983 983  
1029 +
984 984  * (% style="color:#037691" %)**AT Command**
985 985  
986 986  There is no AT Command to control Digital Output
... ... @@ -1017,11 +1017,11 @@
1017 1017  [[image:image-20220524093351-8.png]]
1018 1018  
1019 1019  
1020 -(% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
1066 +(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:
1021 1021  
1022 1022   Latching time. Unit: ms
1023 1023  
1024 -Device will upload a packet if downlink code executes successfully.
1070 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1025 1025  
1026 1026  
1027 1027  **Example payload:**
... ... @@ -1047,6 +1047,7 @@
1047 1047  
1048 1048  ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1049 1049  
1096 +
1050 1050  * (% style="color:#037691" %)**AT Command:**
1051 1051  
1052 1052  There is no AT Command to control Relay Output
... ... @@ -1069,7 +1069,7 @@
1069 1069  [[image:image-20220524093724-9.png]]
1070 1070  )))
1071 1071  
1072 -Device will upload a packet if downlink code executes successfully.
1119 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1073 1073  
1074 1074  
1075 1075  
... ... @@ -1076,6 +1076,7 @@
1076 1076  
1077 1077  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1078 1078  
1126 +
1079 1079  * (% style="color:#037691" %)**AT Command:**
1080 1080  
1081 1081  There is no AT Command to control Relay Output
... ... @@ -1099,37 +1099,37 @@
1099 1099  
1100 1100  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1101 1101  
1102 -[[image:image-20220524093831-10.png]]
1150 +[[image:image-20220714135731-1.png||height="406" width="627"]]
1103 1103  
1104 1104  
1105 -(% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
1153 +(% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
1106 1106  
1107 -Device will upload a packet if downlink code executes successfully.
1155 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1108 1108  
1109 1109  
1110 1110  **Example payload:**
1111 1111  
1112 -**~1. 05 01 11 07 D0**
1160 +**~1. 05 01 11 07 D**
1113 1113  
1114 -Relay1 and Relay 2 will be set to NO , last 2 seconds, then change back to original state.
1162 +Relay1 and Relay 2 will be set to NC , last 2 seconds, then change back to original state.
1115 1115  
1116 1116  **2. 05 01 10 07 D0**
1117 1117  
1118 -Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then both change back to original state.
1166 +Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then both change back to original state.
1119 1119  
1120 1120  **3. 05 00 01 07 D0**
1121 1121  
1122 -Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then relay change to NO, Relay2 change to NC.
1170 +Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then relay change to NC,Relay2 change to NO.
1123 1123  
1124 1124  **4. 05 00 00 07 D0**
1125 1125  
1126 -Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1174 +Relay 1 & relay2 will change to NO, last 2 seconds, then both change to NC.
1127 1127  
1128 1128  
1129 1129  
1130 -
1131 1131  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1132 1132  
1180 +
1133 1133  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1134 1134  
1135 1135  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1146,9 +1146,10 @@
1146 1146  
1147 1147  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1148 1148  
1197 +
1149 1149  * (% style="color:#037691" %)**AT Command:**
1150 1150  
1151 -(% style="color:#037691" %)**​​​​​​​​​​​​​​**(%%)**AT+SETCNT=aa,(bb cc dd ee) **
1200 +**AT+SETCNT=aa,(bb cc dd ee) **
1152 1152  
1153 1153  aa: 1: Set count1,
1154 1154  
... ... @@ -1168,11 +1168,12 @@
1168 1168  
1169 1169  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1170 1170  
1220 +
1171 1171  Clear counting for counting mode
1172 1172  
1173 1173  * (% style="color:#037691" %)**AT Command:**
1174 1174  
1175 -(% style="color:#037691" %)​​​​​​​​​​​​​​(%%)**AT+CLRCOUNT ** ~/~/ clear all counting
1225 +**AT+CLRCOUNT ** ~/~/ clear all counting
1176 1176  
1177 1177  
1178 1178  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA6):**
... ... @@ -1184,6 +1184,7 @@
1184 1184  
1185 1185  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1186 1186  
1237 +
1187 1187  * (% style="color:#037691" %)**AT Command:**
1188 1188  
1189 1189  **AT+COUTIME=60  **~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
... ... @@ -1196,13 +1196,124 @@
1196 1196  (((
1197 1197  range: aa bb cc:0 to 16777215,  (unit:second)
1198 1198  
1250 +
1251 +
1199 1199  
1200 1200  )))
1201 1201  
1255 +==== 3.4.2.20 Reset save DR DO state ====
1202 1202  
1203 1203  
1258 +* (% style="color:#037691" %)**AT Command:**
1259 +
1260 +**AT+RODORET=1  **~/~/ RODO will close when the device joining the network. (default)
1261 +
1262 +**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.
1263 +
1264 +
1265 +* (% style="color:#037691" %)**Downlink Payload (prefix 0xAD):**
1266 +
1267 +**0x AD aa      **~/~/ same as AT+RODORET =aa
1268 +
1269 +(((
1270 +
1271 +
1272 +
1273 +
1274 +==== 3.4.2.21 Encrypted payload ====
1275 +
1276 +
1277 +* (% style="color:#037691" %)**AT Command:**
1278 +
1279 +**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
1280 +
1281 +**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
1282 +
1283 +
1284 +
1285 +
1286 +==== 3.4.2.22 Get sensor value ====
1287 +
1288 +
1289 +* (% style="color:#037691" %)**AT Command:**
1290 +
1291 +**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
1292 +
1293 +**AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
1294 +
1295 +
1296 +
1297 +
1298 +==== 3.4.2.23 Resets the downlink packet count ====
1299 +
1300 +
1301 +* (% style="color:#037691" %)**AT Command:**
1302 +
1303 +**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 +**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 + **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 + **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 +**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 + **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 +[[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"]]
1337 +
1338 +For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1339 +
1340 +[[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"]]
1341 +
1342 +For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1343 +
1344 +
1345 +
1346 +==== 3.4.2.26 Query version number and frequency band 、TDC ====
1347 +
1348 +
1349 +* (((
1350 +(% style="color:#037691" %)**Downlink Payload**(%%)**:**
1351 +
1352 +**26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1353 +
1354 +
1355 +)))
1356 +
1357 +**Example：**
1358 +
1359 +[[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"]]
1360 +
1361 +
1362 +
1363 +)))
1364 +
1204 1204  == 3.5 Integrate with Mydevice ==
1205 1205  
1367 +
1206 1206  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:
1207 1207  
1208 1208  (((
... ... @@ -1211,14 +1211,15 @@
1211 1211  
1212 1212  (((
1213 1213  (% 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:
1376 +
1377 +
1214 1214  )))
1215 1215  
1216 -[[image:1653356737703-362.png||height="232" width="732"]]
1380 +[[image:image-20220719105525-1.png||height="377" width="677"]]
1217 1217  
1218 -[[image:image-20220524094641-11.png||height="390" width="723"]]
1219 1219  
1220 1220  
1221 -[[image:image-20220524094641-12.png||height="402" width="718"]]
1384 +[[image:image-20220719110247-2.png||height="388" width="683"]]
1222 1222  
1223 1223  
1224 1224  (% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
... ... @@ -1251,8 +1251,10 @@
1251 1251  
1252 1252  == 3.6 Interface Detail ==
1253 1253  
1417 +
1254 1254  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1255 1255  
1420 +
1256 1256  Support NPN Type sensor
1257 1257  
1258 1258  [[image:1653356991268-289.png]]
... ... @@ -1261,6 +1261,7 @@
1261 1261  
1262 1262  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1263 1263  
1429 +
1264 1264  (((
1265 1265  The DI port of LT-22222-L can support NPN or PNP output sensor.
1266 1266  )))
... ... @@ -1267,7 +1267,9 @@
1267 1267  
1268 1268  (((
1269 1269  (((
1270 -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
1436 +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.
1437 +
1438 +
1271 1271  )))
1272 1272  )))
1273 1273  
... ... @@ -1292,10 +1292,10 @@
1292 1292  )))
1293 1293  
1294 1294  * (((
1295 -Connect sensor’s output to DI1-
1463 +Connect sensor's output to DI1-
1296 1296  )))
1297 1297  * (((
1298 -Connect sensor’s VCC to DI1+.
1466 +Connect sensor's VCC to DI1+.
1299 1299  )))
1300 1300  
1301 1301  (((
... ... @@ -1303,15 +1303,17 @@
1303 1303  )))
1304 1304  
1305 1305  (((
1306 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1474 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1**+** / 1K.**
1307 1307  )))
1308 1308  
1309 1309  (((
1310 -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.
1478 +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 1311  )))
1312 1312  
1313 1313  (((
1314 1314  
1483 +
1484 +
1315 1315  )))
1316 1316  
1317 1317  (((
... ... @@ -1323,10 +1323,10 @@
1323 1323  )))
1324 1324  
1325 1325  * (((
1326 -Connect sensor’s output to DI1+
1496 +Connect sensor's output to DI1+
1327 1327  )))
1328 1328  * (((
1329 -Connect sensor’s GND DI1-.
1499 +Connect sensor's GND DI1-.
1330 1330  )))
1331 1331  
1332 1332  (((
... ... @@ -1343,6 +1343,8 @@
1343 1343  
1344 1344  (((
1345 1345  
1516 +
1517 +
1346 1346  )))
1347 1347  
1348 1348  (((
... ... @@ -1354,10 +1354,10 @@
1354 1354  )))
1355 1355  
1356 1356  * (((
1357 -Connect sensor’s output to DI1+ with a serial 50K resistor
1529 +Connect sensor's output to DI1+ with a serial 50K resistor
1358 1358  )))
1359 1359  * (((
1360 -Connect sensor’s GND DI1-.
1532 +Connect sensor's GND DI1-.
1361 1361  )))
1362 1362  
1363 1363  (((
... ... @@ -1376,6 +1376,7 @@
1376 1376  
1377 1377  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1378 1378  
1551 +
1379 1379  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1380 1380  
1381 1381  [[image:1653357531600-905.png]]
... ... @@ -1384,6 +1384,7 @@
1384 1384  
1385 1385  === 3.6.4 Analog Input Interface ===
1386 1386  
1560 +
1387 1387  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:
1388 1388  
1389 1389  
... ... @@ -1415,6 +1415,7 @@
1415 1415  
1416 1416  === 3.6.5 Relay Output ===
1417 1417  
1592 +
1418 1418  (((
1419 1419  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:
1420 1420  )))
... ... @@ -1421,6 +1421,7 @@
1421 1421  
1422 1422  [[image:image-20220524100215-9.png]]
1423 1423  
1599 +
1424 1424  [[image:image-20220524100215-10.png||height="382" width="723"]]
1425 1425  
1426 1426  
... ... @@ -1427,13 +1427,17 @@
1427 1427  
1428 1428  == 3.7 LEDs Indicators ==
1429 1429  
1606 +
1430 1430  [[image:image-20220524100748-11.png]]
1431 1431  
1432 1432  
1610 +
1433 1433  = 4. Use AT Command =
1434 1434  
1613 +
1435 1435  == 4.1 Access AT Command ==
1436 1436  
1616 +
1437 1437  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.
1438 1438  
1439 1439  [[image:1653358238933-385.png]]
... ... @@ -1632,8 +1632,6 @@
1632 1632  
1633 1633  (((
1634 1634  AT+CFG: Print all settings
1635 -
1636 -
1637 1637  )))
1638 1638  
1639 1639  
... ... @@ -1640,6 +1640,7 @@
1640 1640  
1641 1641  == 4.2 Common AT Command Sequence ==
1642 1642  
1821 +
1643 1643  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1644 1644  
1645 1645  (((
... ... @@ -1679,8 +1679,6 @@
1679 1679  
1680 1680  (((
1681 1681  (% style="background-color:#dcdcdc" %)ATZ
1682 -
1683 -
1684 1684  )))
1685 1685  
1686 1686  
... ... @@ -1752,6 +1752,8 @@
1752 1752  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1753 1753  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.
1754 1754  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
1932 +
1933 +
1755 1755  )))
1756 1756  
1757 1757  (((
... ... @@ -1765,13 +1765,16 @@
1765 1765  
1766 1766  === 4.2.3 Change to Class A ===
1767 1767  
1947 +
1768 1768  If sensor JOINED
1769 1769  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1770 1770  ATZ
1771 1771  
1772 1772  
1953 +
1773 1773  = 5. FAQ =
1774 1774  
1956 +
1775 1775  == 5.1 How to upgrade the image? ==
1776 1776  
1777 1777  
... ... @@ -1788,12 +1788,14 @@
1788 1788  
1789 1789  (((
1790 1790  (% 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]].
1791 -(% 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/]].
1973 +(% 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]].
1792 1792  (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
1793 1793  
1794 1794  
1795 1795  (% style="color:blue" %)**For LT-22222-L**(%%):
1796 -Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
1978 +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.
1979 +
1980 +
1797 1797  )))
1798 1798  
1799 1799   [[image:image-20220524103407-12.png]]
... ... @@ -1805,6 +1805,7 @@
1805 1805  
1806 1806  (% 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:
1807 1807  
1992 +
1808 1808  [[image:1653360054704-518.png||height="186" width="745"]]
1809 1809  
1810 1810  
... ... @@ -1813,6 +1813,8 @@
1813 1813  
1814 1814  
1815 1815  == 5.2 How to change the LoRa Frequency Bands/Region? ==
2001 +
2002 +
1816 1816  )))
1817 1817  )))
1818 1818  
... ... @@ -1823,7 +1823,10 @@
1823 1823  (((
1824 1824  
1825 1825  
2013 +
1826 1826  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2015 +
2016 +
1827 1827  )))
1828 1828  
1829 1829  (((
... ... @@ -1836,25 +1836,33 @@
1836 1836  (((
1837 1837  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1838 1838  
2029 +
1839 1839  
1840 1840  )))
1841 1841  )))
1842 1842  
1843 1843  (((
1844 -(% 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.
2035 +(% 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.
2036 +
2037 +
1845 1845  )))
1846 1846  
1847 1847  (((
1848 1848  [[image:1653360231087-571.png||height="401" width="727"]]
2042 +
2043 +
1849 1849  )))
1850 1850  
1851 1851  (((
1852 -(% 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.
2047 +(% 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.**
1853 1853  )))
1854 1854  
1855 1855  
2051 +
1856 1856  (((
1857 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2053 +(% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2054 +
2055 +
1858 1858  )))
1859 1859  
1860 1860  (((
... ... @@ -1878,20 +1878,28 @@
1878 1878  [[image:1653360498588-932.png||height="485" width="726"]]
1879 1879  
1880 1880  
2079 +
1881 1881  == 5.4 Can I see counting event in Serial? ==
1882 1882  
2082 +
1883 1883  (((
1884 -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.
2084 +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.
1885 1885  
1886 1886  
2087 +
1887 1887  == 5.5 Can i use point to point communication for LT-22222-L? ==
1888 1888  
2090 +
1889 1889  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
2092 +
2093 +
2094 +
1890 1890  )))
1891 1891  
1892 1892  (((
1893 1893  == 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
1894 1894  
2100 +
1895 1895  If the device is not shut down, but directly powered off.
1896 1896  
1897 1897  It will default that this is a power-off state.
... ... @@ -1900,12 +1900,26 @@
1900 1900  
1901 1901  After restart, the status before power failure will be read from flash.
1902 1902  
2109 +
2110 +== 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2111 +
2112 +LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
2113 +
2114 +[[image:image-20221006170630-1.png||height="610" width="945"]]
2115 +
2116 +
2117 +
2118 +
1903 1903  = 6. Trouble Shooting =
2120 +
2121 +
1904 1904  )))
1905 1905  
1906 1906  (((
1907 1907  (((
1908 -== 6.1 Downlink doesn’t work, how to solve it? ==
2126 +== 6.1 Downlink doesn't work, how to solve it? ==
2127 +
2128 +
1909 1909  )))
1910 1910  )))
1911 1911  
... ... @@ -1916,7 +1916,10 @@
1916 1916  (((
1917 1917  
1918 1918  
2139 +
1919 1919  == 6.2 Have trouble to upload image. ==
2141 +
2142 +
1920 1920  )))
1921 1921  
1922 1922  (((
... ... @@ -1926,7 +1926,10 @@
1926 1926  (((
1927 1927  
1928 1928  
1929 -== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
2152 +
2153 +== 6.3 Why I can't join TTN in US915 /AU915 bands? ==
2154 +
2155 +
1930 1930  )))
1931 1931  
1932 1932  (((
... ... @@ -1940,19 +1940,20 @@
1940 1940  
1941 1941  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1942 1942  
1943 -
1944 1944  (% style="color:#4f81bd" %)**XXX:**
1945 1945  
1946 -* (% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1947 -* (% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1948 -* (% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1949 -* (% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1950 -* (% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1951 -* (% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1952 -* (% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1953 -* (% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1954 -* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2171 +* (% style="color:red" %)**EU433**(%%):  LT with frequency bands EU433
2172 +* (% style="color:red" %)**EU868**(%%):  LT with frequency bands EU868
2173 +* (% style="color:red" %)**KR920**(%%):  LT with frequency bands KR920
2174 +* (% style="color:red" %)**CN470**(%%):  LT with frequency bands CN470
2175 +* (% style="color:red" %)**AS923**(%%):  LT with frequency bands AS923
2176 +* (% style="color:red" %)**AU915**(%%):  LT with frequency bands AU915
2177 +* (% style="color:red" %)**US915**(%%):  LT with frequency bands US915
2178 +* (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2179 +* (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
1955 1955  
2181 +
2182 +
1956 1956  = 8. Packing Info =
1957 1957  
1958 1958  
... ... @@ -1970,18 +1970,26 @@
1970 1970  * Package Size / pcs : 14.5 x 8 x 5 cm
1971 1971  * Weight / pcs : 170g
1972 1972  
2200 +
2201 +
1973 1973  = 9. Support =
1974 1974  
2204 +
1975 1975  * (((
1976 1976  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.
1977 1977  )))
1978 1978  * (((
1979 1979  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]]
2210 +
2211 +
2212 +
2213 +
1980 1980  )))
1981 1981  
1982 1982  = 10. Reference​​​​​ =
1983 1983  
2218 +
1984 1984  * 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]]
1985 -* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1986 -* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
2220 +* [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
1987 1987  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2222 +
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