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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 68.23
edited by Xiaoling
on 2022/05/31 11:08
Change comment: There is no comment for this version
To version 54.2
edited by Xiaoling
on 2022/05/24 10:02
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -41,122 +41,48 @@
41 41  
42 42  (((
43 43  [[image:1653295757274-912.png]]
44 -
45 -
46 46  )))
47 47  
48 48  == 1.2  Specifications ==
49 49  
50 -(((
51 51  **Hardware System:**
52 -)))
53 53  
54 -* (((
55 -STM32L072CZT6 MCU
56 -)))
57 -* (((
58 -SX1276/78 Wireless Chip 
59 -)))
60 -* (((
61 -(((
62 -Power Consumption:
63 -)))
50 +* STM32L072CZT6 MCU
51 +* SX1276/78 Wireless Chip 
52 +* Power Consumption:
53 +** Idle: 4mA@12v
54 +** 20dB Transmit: 34mA@12v
64 64  
65 -* (((
66 -Idle: 4mA@12v
67 -)))
68 -* (((
69 -20dB Transmit: 34mA@12v
70 -)))
71 -)))
72 -
73 -(((
74 74  **Interface for Model: LT22222-L:**
75 -)))
76 76  
77 -* (((
78 -2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
79 -)))
80 -* (((
81 -2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
82 -)))
83 -* (((
84 -2 x Relay Output (5A@250VAC / 30VDC)
85 -)))
86 -* (((
87 -2 x 0~~20mA Analog Input (res:0.01mA)
88 -)))
89 -* (((
90 -2 x 0~~30V Analog Input (res:0.01v)
91 -)))
92 -* (((
93 -Power Input 7~~ 24V DC. 
94 -)))
58 +* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
59 +* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
60 +* 2 x Relay Output (5A@250VAC / 30VDC)
61 +* 2 x 0~~20mA Analog Input (res:0.01mA)
62 +* 2 x 0~~30V Analog Input (res:0.01v)
63 +* Power Input 7~~ 24V DC. 
95 95  
96 -(((
97 97  **LoRa Spec:**
98 -)))
99 99  
100 -* (((
101 -(((
102 -Frequency Range:
103 -)))
67 +* Frequency Range:
68 +** Band 1 (HF): 862 ~~ 1020 Mhz
69 +** Band 2 (LF): 410 ~~ 528 Mhz
70 +* 168 dB maximum link budget.
71 +* +20 dBm - 100 mW constant RF output vs.
72 +* +14 dBm high efficiency PA.
73 +* Programmable bit rate up to 300 kbps.
74 +* High sensitivity: down to -148 dBm.
75 +* Bullet-proof front end: IIP3 = -12.5 dBm.
76 +* Excellent blocking immunity.
77 +* Low RX current of 10.3 mA, 200 nA register retention.
78 +* Fully integrated synthesizer with a resolution of 61 Hz.
79 +* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
80 +* Built-in bit synchronizer for clock recovery.
81 +* Preamble detection.
82 +* 127 dB Dynamic Range RSSI.
83 +* Automatic RF Sense and CAD with ultra-fast AFC.
84 +* Packet engine up to 256 bytes with CRC.
104 104  
105 -* (((
106 -Band 1 (HF): 862 ~~ 1020 Mhz
107 -)))
108 -* (((
109 -Band 2 (LF): 410 ~~ 528 Mhz
110 -)))
111 -)))
112 -* (((
113 -168 dB maximum link budget.
114 -)))
115 -* (((
116 -+20 dBm - 100 mW constant RF output vs.
117 -)))
118 -* (((
119 -+14 dBm high efficiency PA.
120 -)))
121 -* (((
122 -Programmable bit rate up to 300 kbps.
123 -)))
124 -* (((
125 -High sensitivity: down to -148 dBm.
126 -)))
127 -* (((
128 -Bullet-proof front end: IIP3 = -12.5 dBm.
129 -)))
130 -* (((
131 -Excellent blocking immunity.
132 -)))
133 -* (((
134 -Low RX current of 10.3 mA, 200 nA register retention.
135 -)))
136 -* (((
137 -Fully integrated synthesizer with a resolution of 61 Hz.
138 -)))
139 -* (((
140 -FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
141 -)))
142 -* (((
143 -Built-in bit synchronizer for clock recovery.
144 -)))
145 -* (((
146 -Preamble detection.
147 -)))
148 -* (((
149 -127 dB Dynamic Range RSSI.
150 -)))
151 -* (((
152 -Automatic RF Sense and CAD with ultra-fast AFC.
153 -)))
154 -* (((
155 -Packet engine up to 256 bytes with CRC.
156 -
157 -
158 -)))
159 -
160 160  == 1.3 Features ==
161 161  
162 162  * LoRaWAN Class A & Class C protocol
... ... @@ -189,7 +189,6 @@
189 189  * 1 x Counting Port
190 190  )))
191 191  
192 -
193 193  = 2. Power ON Device =
194 194  
195 195  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.
... ... @@ -200,29 +200,21 @@
200 200  
201 201  [[image:1653297104069-180.png]]
202 202  
203 -
204 204  = 3. Operation Mode =
205 205  
206 206  == 3.1 How it works? ==
207 207  
208 -(((
209 209  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. 
210 -)))
211 211  
212 -(((
213 -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.
134 +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>>path:#AT_Command]] to set the keys in the devices.
214 214  
215 -
216 -)))
136 +3.2 Example to join LoRaWAN network
217 217  
218 -== 3.2 Example to join LoRaWAN network ==
219 -
220 -(((
221 221  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. 
222 -)))
223 223  
224 224  [[image:image-20220523172350-1.png||height="266" width="864"]]
225 225  
142 +
226 226  (((
227 227  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:
228 228  )))
... ... @@ -243,12 +243,10 @@
243 243  
244 244  [[image:1653297955910-247.png||height="321" width="716"]]
245 245  
246 -
247 247  Add APP KEY and DEV EUI
248 248  
249 249  [[image:1653298023685-319.png]]
250 250  
251 -
252 252  (((
253 253  **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.
254 254  )))
... ... @@ -255,7 +255,6 @@
255 255  
256 256  [[image:1653298044601-602.png||height="405" width="709"]]
257 257  
258 -
259 259  == 3.3 Uplink Payload ==
260 260  
261 261  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -321,9 +321,7 @@
321 321  
322 322  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
323 323  
324 -(((
325 325  Total : 11 bytes payload
326 -)))
327 327  
328 328  [[image:image-20220523180452-3.png]]
329 329  
... ... @@ -337,79 +337,54 @@
337 337  * FIRST: Indicate this is the first packet after join network.
338 338  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
339 339  
340 -(((
341 341  (% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
342 -)))
343 343  
344 -(((
345 345  **To use counting mode, please run:**
346 -)))
347 347  
348 348  (% class="box infomessage" %)
349 349  (((
350 -(((
351 351  **AT+MOD=2**
352 352  )))
353 -)))
354 354  
355 355  (% class="box infomessage" %)
356 356  (((
357 -(((
358 358  **ATZ**
359 359  )))
360 -)))
361 361  
362 -(((
363 363  (% style="color:#4f81bd" %)**AT Commands for counting:**
364 -)))
365 365  
366 -(((
367 367  **For LT22222-L:**
368 -)))
369 369  
370 370  (% class="box infomessage" %)
371 371  (((
372 -(((
373 373  **AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
374 374  )))
375 -)))
376 376  
377 377  (% class="box infomessage" %)
378 378  (((
379 -(((
380 380  **AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
381 381  )))
382 -)))
383 383  
384 384  (% class="box infomessage" %)
385 385  (((
386 -(((
387 387  **AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
388 388  )))
389 -)))
390 390  
391 391  (% class="box infomessage" %)
392 392  (((
393 -(((
394 394  **AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
395 395  )))
396 -)))
397 397  
398 398  (% class="box infomessage" %)
399 399  (((
400 -(((
401 401  **AT+SETCNT=1,60   (Set COUNT1 value to 60)**
402 402  )))
403 -)))
404 404  
405 405  (% class="box infomessage" %)
406 406  (((
407 -(((
408 408  **AT+SETCNT=2,60   (Set COUNT2 value to 60)**
409 409  )))
410 -)))
411 411  
412 -
413 413  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
414 414  
415 415  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -426,34 +426,22 @@
426 426  * FIRST: Indicate this is the first packet after join network.
427 427  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
428 428  
429 -(((
430 430  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
431 -)))
432 432  
433 -(((
434 434  **To use counting mode, please run:**
435 -)))
436 436  
437 437  (% class="box infomessage" %)
438 438  (((
439 -(((
440 440  **AT+MOD=3**
441 441  )))
442 -)))
443 443  
444 444  (% class="box infomessage" %)
445 445  (((
446 -(((
447 447  **ATZ**
448 448  )))
449 -)))
450 450  
451 -(((
452 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
330 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
453 453  
454 -
455 -)))
456 -
457 457  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
458 458  
459 459  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -472,69 +472,45 @@
472 472  * FIRST: Indicate this is the first packet after join network.
473 473  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
474 474  
475 -(((
476 476  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
477 -)))
478 478  
479 -(((
480 480  **To use this mode, please run:**
481 -)))
482 482  
483 483  (% class="box infomessage" %)
484 484  (((
485 -(((
486 486  **AT+MOD=4**
487 487  )))
488 -)))
489 489  
490 490  (% class="box infomessage" %)
491 491  (((
492 -(((
493 493  **ATZ**
494 494  )))
495 -)))
496 496  
497 -(((
498 -
499 -)))
500 500  
501 -(((
502 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
503 -)))
365 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
504 504  
505 -(((
506 506  **Plus below command for AVI1 Counting:**
507 -)))
508 508  
509 509  (% class="box infomessage" %)
510 510  (((
511 -(((
512 512  **AT+SETCNT=3,60   (set AVI Count to 60)**
513 513  )))
514 -)))
515 515  
516 516  (% class="box infomessage" %)
517 517  (((
518 -(((
519 519  **AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
520 520  )))
521 -)))
522 522  
523 523  (% class="box infomessage" %)
524 524  (((
525 -(((
526 526  **AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
527 527  )))
528 -)))
529 529  
530 530  (% class="box infomessage" %)
531 531  (((
532 -(((
533 533  **AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
534 534  )))
535 -)))
536 536  
537 -
538 538  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
539 539  
540 540  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -547,38 +547,24 @@
547 547  
548 548  * RO is for relay. ROx=1 : close，ROx=0 always open.
549 549  * FIRST: Indicate this is the first packet after join network.
550 -* (((
551 -DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
552 -)))
401 +* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
553 553  
554 -(((
555 555  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
556 -)))
557 557  
558 -(((
559 559  **To use this mode, please run:**
560 -)))
561 561  
562 562  (% class="box infomessage" %)
563 563  (((
564 -(((
565 565  **AT+MOD=5**
566 566  )))
567 -)))
568 568  
569 569  (% class="box infomessage" %)
570 570  (((
571 -(((
572 572  **ATZ**
573 573  )))
574 -)))
575 575  
576 -(((
577 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
417 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
578 578  
579 -
580 -)))
581 -
582 582  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
583 583  
584 584  (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
... ... @@ -626,7 +626,7 @@
626 626  
627 627  **Downlink Command to set Trigger Condition**
628 628  
629 -Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
466 +Type Code: 0xAA. Downlink command same as AT Command [[AT+AVLIM, AT+ACLIM>>path:#AT_Trigger]]
630 630  
631 631  Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
632 632  
... ... @@ -646,7 +646,7 @@
646 646  
647 647  Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
648 648  
649 -**Example2**: AA 02 01 00
486 +Example2: AA 02 01 00
650 650  
651 651  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
652 652  
... ... @@ -699,13 +699,10 @@
699 699  
700 700  When device got this command, it will send the MOD6 payload.
701 701  
702 -
703 703  === 3.3.7 Payload Decoder ===
704 704  
705 705  (((
706 706  **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/]]
707 -
708 -
709 709  )))
710 710  
711 711  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -722,9 +722,8 @@
722 722  
723 723  === 3.4.1 Common Commands ===
724 724  
725 -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]]
559 +They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>http://8.211.40.43:8080/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
726 726  
727 -
728 728  === 3.4.2 Sensor related commands ===
729 729  
730 730  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -747,7 +747,6 @@
747 747  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
748 748  )))
749 749  
750 -
751 751  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
752 752  
753 753  Set work mode.
... ... @@ -768,7 +768,6 @@
768 768  **0x0A aa     ~/~/ Same as AT+MOD=aa**
769 769  )))
770 770  
771 -
772 772  ==== 3.4.2.3 Poll an uplink ====
773 773  
774 774  * AT Command:
... ... @@ -784,7 +784,6 @@
784 784  
785 785  **Example**: 0x08FF, ask device to send an Uplink
786 786  
787 -
788 788  ==== 3.4.2.4 Enable Trigger Mode ====
789 789  
790 790  Use of trigger mode, please check [[ADDMOD6>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
... ... @@ -807,7 +807,6 @@
807 807  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
808 808  )))
809 809  
810 -
811 811  ==== 3.4.2.5 Poll trigger settings ====
812 812  
813 813  Poll trigger settings,
... ... @@ -823,7 +823,6 @@
823 823  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
824 824  )))
825 825  
826 -
827 827  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
828 828  
829 829  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -846,7 +846,6 @@
846 846  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
847 847  )))
848 848  
849 -
850 850  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
851 851  
852 852  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -873,7 +873,6 @@
873 873  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
874 874  )))
875 875  
876 -
877 877  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
878 878  
879 879  Set DI2 trigger.
... ... @@ -900,7 +900,6 @@
900 900  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
901 901  )))
902 902  
903 -
904 904  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
905 905  
906 906  Set current trigger , base on AC port. See [[trigger mode>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
... ... @@ -919,7 +919,6 @@
919 919  **0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
920 920  )))
921 921  
922 -
923 923  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
924 924  
925 925  Set current trigger , base on AV port. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
... ... @@ -938,7 +938,6 @@
938 938  **0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]] **
939 939  )))
940 940  
941 -
942 942  ==== 3.4.2.11 Trigger – Set minimum interval ====
943 943  
944 944  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -957,7 +957,6 @@
957 957  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
958 958  )))
959 959  
960 -
961 961  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
962 962  
963 963  * AT Command:
... ... @@ -1000,10 +1000,8 @@
1000 1000  
1001 1001  (% class="box infomessage" %)
1002 1002  (((
1003 -(((
1004 1004  **0xA9 aa bb cc     ~/~/ Set DO1/DO2/DO3 output with time control**
1005 1005  )))
1006 -)))
1007 1007  
1008 1008  This is to control the digital output time of DO pin. Include four bytes:
1009 1009  
... ... @@ -1148,7 +1148,6 @@
1148 1148  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1149 1149  )))
1150 1150  
1151 -
1152 1152  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1153 1153  
1154 1154  * AT Command:
... ... @@ -1173,7 +1173,6 @@
1173 1173  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1174 1174  )))
1175 1175  
1176 -
1177 1177  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1178 1178  
1179 1179  Clear counting for counting mode
... ... @@ -1192,7 +1192,6 @@
1192 1192  **0x A6 01     ~/~/ clear all counting,**
1193 1193  )))
1194 1194  
1195 -
1196 1196  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1197 1197  
1198 1198  * AT Command:
... ... @@ -1209,31 +1209,24 @@
1209 1209  **0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,**
1210 1210  )))
1211 1211  
1212 -(((
1213 1213  range: aa bb cc:0 to 16777215,  (unit:second)
1214 1214  
1215 -
1216 -)))
1217 -
1218 1218  == 3.5 Integrate with Mydevice ==
1219 1219  
1220 1220  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:
1221 1221  
1222 -(((
1223 1223  **Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1224 -)))
1225 1225  
1226 -(((
1227 1227  **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:
1228 -)))
1229 1229  
1230 1230  [[image:1653356737703-362.png||height="232" width="732"]]
1231 1231  
1232 1232  [[image:image-20220524094641-11.png||height="390" width="723"]]
1233 1233  
1043 +
1234 1234  [[image:image-20220524094641-12.png||height="402" width="718"]]
1235 1235  
1236 -**Step 3**: Create an account or log in Mydevices.
1046 +**Step **3: Create an account or log in Mydevices.
1237 1237  
1238 1238  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1239 1239  
... ... @@ -1241,9 +1241,9 @@
1241 1241  
1242 1242  [[image:1653356838789-523.png||height="337" width="740"]]
1243 1243  
1244 -
1245 1245  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1246 1246  
1056 +
1247 1247  [[image:image-20220524094909-1.png||height="335" width="729"]]
1248 1248  
1249 1249  [[image:image-20220524094909-2.png||height="337" width="729"]]
... ... @@ -1255,6 +1255,9 @@
1255 1255  [[image:image-20220524094909-5.png||height="341" width="734"]]
1256 1256  
1257 1257  
1068 +
1069 +
1070 +
1258 1258  == 3.6 Interface Detail ==
1259 1259  
1260 1260  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1263,7 +1263,6 @@
1263 1263  
1264 1264  [[image:1653356991268-289.png]]
1265 1265  
1266 -
1267 1267  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1268 1268  
1269 1269  (((
... ... @@ -1271,10 +1271,8 @@
1271 1271  )))
1272 1272  
1273 1273  (((
1274 -(((
1275 1275  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
1276 1276  )))
1277 -)))
1278 1278  
1279 1279  [[image:1653357170703-587.png]]
1280 1280  
... ... @@ -1292,7 +1292,7 @@
1292 1292  
1293 1293  So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1294 1294  
1295 -[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]] = DI1+ / 1K.**
1105 + //IF// = DI1+ / 1K.
1296 1296  
1297 1297  If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1298 1298  
... ... @@ -1306,9 +1306,9 @@
1306 1306  
1307 1307  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1308 1308  
1309 -[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1119 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1310 1310  
1311 -If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1121 +If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1312 1312  
1313 1313  
1314 1314  **Example3**: Connect to a 220v high active sensor.
... ... @@ -1320,11 +1320,10 @@
1320 1320  
1321 1321  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1322 1322  
1323 - [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1133 + [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1324 1324  
1325 -If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1135 +If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %) [[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1326 1326  
1327 -
1328 1328  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1329 1329  
1330 1330  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1331,7 +1331,6 @@
1331 1331  
1332 1332  [[image:1653357531600-905.png]]
1333 1333  
1334 -
1335 1335  === 3.6.4 Analog Input Interface ===
1336 1336  
1337 1337  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:
... ... @@ -1359,636 +1359,417 @@
1359 1359  
1360 1360  [[image:1653357648330-671.png||height="155" width="733"]]
1361 1361  
1362 -
1363 1363  === 3.6.5 Relay Output ===
1364 1364  
1365 -(((
1366 1366  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:
1367 -)))
1368 1368  
1174 +
1369 1369  [[image:image-20220524100215-9.png]]
1370 1370  
1177 +
1371 1371  [[image:image-20220524100215-10.png||height="382" width="723"]]
1372 1372  
1373 1373  
1374 -== 3.7 LEDs Indicators ==
1375 1375  
1376 -[[image:image-20220524100748-11.png]]
1377 1377  
1378 1378  
1379 -= 4. Use AT Command =
1380 1380  
1381 -== 4.1 Access AT Command ==
1185 +1.
1186 +11. LEDs Indicators
1382 1382  
1383 -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.
1188 +(% border="1" style="background-color:#f7faff" %)
1189 +|**LEDs**|**Feature**
1190 +|**PWR**|Always on if there is power
1191 +|**SYS**|After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
1192 +|**TX**|(((
1193 +Device boot: TX blinks 5 times.
1384 1384  
1385 -[[image:1653358238933-385.png]]
1195 +Successful join network: TX ON for 5 seconds.
1386 1386  
1387 -(((
1388 -In PC, User needs to set (% style="color:#4f81bd" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LT. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**)(%%) to active it. As shown below:
1197 +Transmit a LoRa packet: TX blinks once
1389 1389  )))
1199 +|**RX**|RX blinks once when receive a packet.
1200 +|**DO1**|
1201 +|**DO2**|
1202 +|**DO3**|
1203 +|**DI2**|(((
1204 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1390 1390  
1391 -[[image:1653358355238-883.png]]
1206 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1207 +)))
1208 +|**DI2**|(((
1209 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1392 1392  
1393 -(((
1394 -More detail AT Command manual can be found at [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1211 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1395 1395  )))
1213 +|**DI3**|For LT-33222-L ONLY: ON when DI3 is low, LOW when DI3 is high
1214 +|**DI2**|(((
1215 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1396 1396  
1397 -(((
1398 -AT+<CMD>?        : Help on <CMD>
1217 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1399 1399  )))
1219 +|**RO1**|
1220 +|**RO2**|
1400 1400  
1401 -(((
1222 +1. Use AT Command
1223 +11. Access AT Command
1224 +
1225 +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.
1226 +
1227 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1228 +
1229 +
1230 +In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console for LT. The AT commands are disable by default and need to enter password (default:**123456**) to active it. As shown below:
1231 +
1232 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1233 +
1234 +
1235 +More detail AT Command manual can be found at [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1236 +
1237 +AT+<CMD>?        : Help on <CMD>
1238 +
1402 1402  AT+<CMD>         : Run <CMD>
1403 -)))
1404 1404  
1405 -(((
1406 1406  AT+<CMD>=<value> : Set the value
1407 -)))
1408 1408  
1409 -(((
1410 1410  AT+<CMD>=?       : Get the value
1411 -)))
1412 1412  
1413 -(((
1414 1414  ATZ: Trig a reset of the MCU
1415 -)))
1416 1416  
1417 -(((
1418 1418  AT+FDR: Reset Parameters to Factory Default, Keys Reserve 
1419 -)))
1420 1420  
1421 -(((
1422 1422  AT+DEUI: Get or Set the Device EUI
1423 -)))
1424 1424  
1425 -(((
1426 1426  AT+DADDR: Get or Set the Device Address
1427 -)))
1428 1428  
1429 -(((
1430 1430  AT+APPKEY: Get or Set the Application Key
1431 -)))
1432 1432  
1433 -(((
1434 1434  AT+NWKSKEY: Get or Set the Network Session Key
1435 -)))
1436 1436  
1437 -(((
1438 1438  AT+APPSKEY: Get or Set the Application Session Key
1439 -)))
1440 1440  
1441 -(((
1442 1442  AT+APPEUI: Get or Set the Application EUI
1443 -)))
1444 1444  
1445 -(((
1446 1446  AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1447 -)))
1448 1448  
1449 -(((
1450 1450  AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1451 -)))
1452 1452  
1453 -(((
1454 1454  AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1455 -)))
1456 1456  
1457 -(((
1458 1458  AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1459 -)))
1460 1460  
1461 -(((
1462 1462  AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1463 -)))
1464 1464  
1465 -(((
1466 1466  AT+RX2FQ: Get or Set the Rx2 window frequency
1467 -)))
1468 1468  
1469 -(((
1470 1470  AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1471 -)))
1472 1472  
1473 -(((
1474 1474  AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1475 -)))
1476 1476  
1477 -(((
1478 1478  AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1479 -)))
1480 1480  
1481 -(((
1482 1482  AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1483 -)))
1484 1484  
1485 -(((
1486 1486  AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1487 -)))
1488 1488  
1489 -(((
1490 1490  AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1491 -)))
1492 1492  
1493 -(((
1494 1494  AT+NWKID: Get or Set the Network ID
1495 -)))
1496 1496  
1497 -(((
1498 1498  AT+FCU: Get or Set the Frame Counter Uplink
1499 -)))
1500 1500  
1501 -(((
1502 1502  AT+FCD: Get or Set the Frame Counter Downlink
1503 -)))
1504 1504  
1505 -(((
1506 1506  AT+CLASS: Get or Set the Device Class
1507 -)))
1508 1508  
1509 -(((
1510 1510  AT+JOIN: Join network
1511 -)))
1512 1512  
1513 -(((
1514 1514  AT+NJS: Get OTAA Join Status
1515 -)))
1516 1516  
1517 -(((
1518 1518  AT+SENDB: Send hexadecimal data along with the application port
1519 -)))
1520 1520  
1521 -(((
1522 1522  AT+SEND: Send text data along with the application port
1523 -)))
1524 1524  
1525 -(((
1526 1526  AT+RECVB: Print last received data in binary format (with hexadecimal values)
1527 -)))
1528 1528  
1529 -(((
1530 1530  AT+RECV: Print last received data in raw format
1531 -)))
1532 1532  
1533 -(((
1534 1534  AT+VER: Get current image version and Frequency Band
1535 -)))
1536 1536  
1537 -(((
1538 1538  AT+CFM: Get or Set the confirmation mode (0-1)
1539 -)))
1540 1540  
1541 -(((
1542 1542  AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1543 -)))
1544 1544  
1545 -(((
1546 1546  AT+SNR: Get the SNR of the last received packet
1547 -)))
1548 1548  
1549 -(((
1550 1550  AT+RSSI: Get the RSSI of the last received packet
1551 -)))
1552 1552  
1553 -(((
1554 1554  AT+TDC: Get or set the application data transmission interval in ms
1555 -)))
1556 1556  
1557 -(((
1558 1558  AT+PORT: Get or set the application port
1559 -)))
1560 1560  
1561 -(((
1562 1562  AT+DISAT: Disable AT commands
1563 -)))
1564 1564  
1565 -(((
1566 1566  AT+PWORD: Set password, max 9 digits
1567 -)))
1568 1568  
1569 -(((
1570 1570  AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1571 -)))
1572 1572  
1573 -(((
1574 1574  AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1575 -)))
1576 1576  
1577 -(((
1578 1578  AT+CFG: Print all settings
1579 1579  
1580 -
1581 -)))
1582 1582  
1583 -== 4.2 Common AT Command Sequence ==
1584 1584  
1585 -=== 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1331 +1.
1332 +11. Common AT Command Sequence
1333 +111. Multi-channel ABP mode (Use with SX1301/LG308)
1586 1586  
1587 -(((
1588 1588  If device has not joined network yet:
1589 -)))
1590 1590  
1591 -(((
1592 -(% style="background-color:#dcdcdc" %)123456
1593 -)))
1337 +123456
1594 1594  
1595 -(((
1596 -(% style="background-color:#dcdcdc" %)AT+FDR
1597 -)))
1339 +AT+FDR
1598 1598  
1599 -(((
1600 -(% style="background-color:#dcdcdc" %)123456
1601 -)))
1341 +123456
1602 1602  
1603 -(((
1604 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1605 -)))
1343 +AT+NJM=0
1606 1606  
1607 -(((
1608 -(% style="background-color:#dcdcdc" %)ATZ
1609 -)))
1345 +ATZ
1610 1610  
1611 1611  
1612 -(((
1613 1613  If device already joined network:
1614 -)))
1615 1615  
1616 -(((
1617 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1618 -)))
1350 +AT+NJM=0
1619 1619  
1620 -(((
1621 -(% style="background-color:#dcdcdc" %)ATZ
1352 +ATZ
1622 1622  
1623 -
1624 -)))
1354 +1.
1355 +11.
1356 +111. Single-channel ABP mode (Use with LG01/LG02)
1625 1625  
1626 -=== 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1358 +123456   Enter Password to have AT access.
1627 1627  
1628 -(((
1629 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1630 -)))
1360 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1631 1631  
1632 -(((
1633 -(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1634 -)))
1362 +123456   Enter Password to have AT access.
1635 1635  
1636 -(((
1637 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1638 -)))
1364 +AT+CLASS=C Set to work in CLASS C
1639 1639  
1640 -(((
1641 -(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1642 -)))
1366 +AT+NJM=0 Set to ABP mode
1643 1643  
1644 -(((
1645 -(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1646 -)))
1368 +AT+ADR=0 Set the Adaptive Data Rate Off
1647 1647  
1648 -(((
1649 -(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off
1650 -)))
1370 +AT+DR=5  Set Data Rate
1651 1651  
1652 -(((
1653 -(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1654 -)))
1372 +AT+TDC=60000  Set transmit interval to 60 seconds
1655 1655  
1656 -(((
1657 -(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1658 -)))
1374 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1659 1659  
1660 -(((
1661 -(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
1662 -)))
1376 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1663 1663  
1664 -(((
1665 -(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1666 -)))
1378 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1667 1667  
1668 -(((
1669 -(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1670 -)))
1380 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1671 1671  
1672 -(((
1673 -(% 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.
1674 -)))
1382 +ATZ          Reset MCU
1675 1675  
1676 -(((
1677 -(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1678 -)))
1384 +**Note:**
1679 1679  
1680 -(((
1681 -(% style="color:red" %)**Note:**
1682 -)))
1386 +1. Make sure the device is set to ABP mode in the IoT Server.
1387 +1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1388 +1. 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.
1389 +1. 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
1683 1683  
1684 -(((
1685 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1686 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1687 -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.
1688 -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
1689 -)))
1391 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1690 1690  
1691 -(((
1692 -[[image:1653359097980-169.png||height="188" width="729"]]
1693 -)))
1694 1694  
1695 -(((
1696 -
1697 -)))
1394 +1.
1395 +11.
1396 +111. Change to Class A
1698 1698  
1699 -=== 4.2.3 Change to Class A ===
1700 -
1701 1701  If sensor JOINED
1702 -(% style="background-color:#dcdcdc" %)AT+CLASS=A
1399 +
1400 +AT+CLASS=A
1401 +
1703 1703  ATZ
1704 1704  
1705 1705  
1706 -= 5. FAQ =
1707 1707  
1708 -== 5.1 How to upgrade the image? ==
1709 1709  
1407 +
1408 +1. FAQ
1409 +
1410 +1.
1411 +11. How to upgrade the image?
1412 +
1710 1710  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1711 1711  
1712 1712  * Support new features
1713 1713  * For bug fix
1714 1714  * Change LoRaWAN bands.
1418 +
1715 1715  Below shows the hardware connection for how to upload an image to the LT:
1716 -* [[image:1653359603330-121.png]]
1717 1717  
1718 -(((
1421 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1422 +
1423 +
1719 1719  **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]].
1425 +
1720 1720  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1427 +
1721 1721  **Step3: **Open flashloader; choose the correct COM port to update.
1429 +
1430 +**For LT-33222-L**:
1431 +
1432 +Hold down the PRO button and then momentarily press the RST reset button and the **DO2 led** will change from OFF to ON. When **DO2 LED** is on, it means the device is in download mode.
1433 +
1722 1722  **For LT-22222-L**:
1435 +
1723 1723  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.
1437 +
1438 +
1439 +
1440 +|(((
1441 +Board detected
1724 1724  )))
1725 1725  
1726 - [[image:image-20220524103407-12.png]]
1444 +|(((
1445 +
1446 +)))
1727 1727  
1728 -[[image:image-20220524103429-13.png]]
1448 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]]
1729 1729  
1730 -[[image:image-20220524104033-15.png]]
1731 1731  
1732 -(% 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:
1733 1733  
1734 -[[image:1653360054704-518.png||height="186" width="745"]]
1452 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]]
1735 1735  
1736 1736  
1737 -(((
1738 -(((
1739 -== 5.2 How to change the LoRa Frequency Bands/Region? ==
1740 -)))
1741 -)))
1455 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image037.png]]
1742 1742  
1743 -(((
1744 -User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1745 1745  
1746 -
1747 -)))
1458 +**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1748 1748  
1749 -(((
1750 -== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1751 -)))
1460 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1752 1752  
1753 -(((
1754 -(((
1462 +
1463 +1.
1464 +11. How to change the LoRa Frequency Bands/Region?
1465 +
1466 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1467 +
1468 +
1469 +1.
1470 +11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1471 +
1755 1755  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
1756 -)))
1757 -)))
1758 1758  
1759 -(((
1760 -(((
1761 1761  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1762 -)))
1763 -)))
1764 1764  
1765 -(((
1766 -(% 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.
1767 -)))
1768 1768  
1769 -(((
1770 -[[image:1653360231087-571.png||height="401" width="727"]]
1771 -)))
1477 +**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.
1772 1772  
1773 -(((
1774 -(% 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.
1775 -)))
1479 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]
1776 1776  
1777 -(((
1778 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1779 -)))
1481 +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.
1780 1780  
1781 -(((
1782 -(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1783 -(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1784 -(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1785 -(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1786 -(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1787 -(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1788 -(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1789 -(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1790 -(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1791 -(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1792 -)))
1793 1793  
1794 -(((
1795 -As shown in below:
1796 -)))
1484 +**Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1797 1797  
1798 -[[image:1653360498588-932.png||height="485" width="726"]]
1486 +123456   Enter Password to have AT access.
1799 1799  
1488 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1800 1800  
1801 -== 5.4 Can I see counting event in Serial? ==
1490 +123456   Enter Password to have AT access.
1802 1802  
1803 -(((
1804 -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.
1492 +AT+NJM=0 Set to ABP mode
1805 1805  
1806 -
1807 -)))
1494 +AT+ADR=0 Set the Adaptive Data Rate Off
1808 1808  
1809 -(((
1810 -= 6. Trouble Shooting =
1811 -)))
1496 +AT+DR=5  Set Data Rate (Set AT+DR=3 for 915 band)
1812 1812  
1813 -(((
1814 -(((
1815 -== 6.1 Downlink doesn’t work, how to solve it? ==
1816 -)))
1817 -)))
1498 +AT+TDC=60000  Set transmit interval to 60 seconds
1818 1818  
1819 -(((
1820 -Please see this link for how to debug: [[LoRaWAN Communication Debug>>LoRaWAN Communication Debug||anchor="H5.1Howitwork"]]
1500 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1821 1821  
1822 -[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H5.1Howitwork>>http://wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H5.1Howitwork]]
1502 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1
1823 1823  
1824 -
1825 -)))
1504 +ATZ                Reset MCU
1826 1826  
1827 -(((
1828 -== 6.2 Have trouble to upload image. ==
1829 -)))
1506 +As shown in below:
1830 1830  
1831 -(((
1832 -See this link for trouble shooting:
1508 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]
1833 1833  
1834 -[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/>>http://wiki1.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
1835 -)))
1836 1836  
1837 -(((
1838 -
1839 -)))
1840 1840  
1841 -(((
1842 -== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1843 -)))
1512 +1.
1513 +11. Can I see counting event in Serial?
1844 1844  
1845 -(((
1846 -It might be about the channels mapping. Please see this link for detail:
1515 +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.
1847 1847  
1848 -[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H2.NoticeofUS9152FCN4702FAU915Frequencyband>>http://wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H2.NoticeofUS9152FCN4702FAU915Frequencyband]]
1849 -)))
1850 1850  
1851 -(((
1852 -
1853 -)))
1854 1854  
1855 -(((
1856 -= 7. Order Info =
1857 -)))
1858 1858  
1859 -(((
1860 -(((
1861 -(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1862 -)))
1863 -)))
1520 +1. Trouble Shooting     
1521 +11. Downlink doesn’t work, how to solve it?
1864 1864  
1865 -(((
1866 -(((
1867 -(% style="color:#4f81bd" %)**XXX:**
1868 -)))
1869 -)))
1523 +Please see this link for how to debug:
1870 1870  
1871 -(((
1872 -* (((
1873 -(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1874 -)))
1875 -)))
1525 +[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work]]
1876 1876  
1877 -(((
1878 -* (((
1879 -(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1880 -)))
1881 -)))
1882 1882  
1883 -(((
1884 -* (((
1885 -(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1886 -)))
1887 -)))
1528 +1.
1529 +11. Have trouble to upload image.
1888 1888  
1889 -(((
1890 -* (((
1891 -(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1892 -)))
1893 -)))
1531 +See this link for trouble shooting:
1894 1894  
1895 -(((
1896 -* (((
1897 -(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1898 -)))
1899 -)))
1533 +[[http:~~/~~/wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting>>url:http://wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting]]
1900 1900  
1901 -(((
1902 -* (((
1903 -(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1904 -)))
1905 -)))
1906 1906  
1907 -(((
1908 -* (((
1909 -(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1910 -)))
1911 -)))
1536 +1.
1537 +11. Why I can’t join TTN in US915 /AU915 bands?
1912 1912  
1913 -(((
1914 -* (((
1915 -(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1916 -)))
1917 -)))
1539 +It might be about the channels mapping. Please see this link for detail:
1918 1918  
1919 -(((
1920 -* (((
1921 -(% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1541 +[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1922 1922  
1923 -
1924 -)))
1925 1925  
1926 -= 8. Packing Info =
1927 -)))
1928 1928  
1929 -(((
1930 -(((
1545 +
1546 +1. Order Info
1547 +
1548 +**For LT-33222-L-XXX or LT-22222-L-XXX:**
1549 +
1550 +**XXX:**
1551 +
1552 +* **EU433**: LT with frequency bands EU433
1553 +* **EU868**: LT with frequency bands EU868
1554 +* **KR920**: LT with frequency bands KR920
1555 +* **CN470**: LT with frequency bands CN470
1556 +* **AS923**: LT with frequency bands AS923
1557 +* **AU915**: LT with frequency bands AU915
1558 +* **US915**: LT with frequency bands US915
1559 +* **IN865**: LT with frequency bands IN865
1560 +* **CN779**: LT with frequency bands CN779
1561 +
1562 +1. Packing Info
1563 +
1931 1931  **Package Includes**:
1932 -)))
1933 -)))
1934 1934  
1935 -(((
1936 -(((
1937 -* LT-22222-L I/O Controller x 1
1566 +* LT I/O Controller x 1
1938 1938  * Stick Antenna for LoRa RF part x 1
1939 1939  * Bracket for controller x1
1940 1940  * Program cable x 1
1941 -)))
1942 -)))
1943 1943  
1944 -(((
1945 -(((
1946 1946  **Dimension and weight**:
1947 -)))
1948 -)))
1949 1949  
1950 -(((
1951 -(((
1952 1952  * Device Size: 13.5 x 7 x 3 cm
1953 1953  * Device Weight: 105g
1954 1954  * Package Size / pcs : 14.5 x 8 x 5 cm
1955 1955  * Weight / pcs : 170g
1956 1956  
1957 -
1958 -)))
1959 -)))
1578 +1. Support
1960 1960  
1961 -(((
1962 -= 9. Support =
1963 -)))
1580 +* 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.
1581 +* 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
1964 1964  
1965 -* (((
1966 -(((
1967 -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.
1968 -)))
1969 -)))
1970 -* (((
1971 -(((
1972 -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
1973 -)))
1974 -)))
1975 -
1976 -(((
1977 -(((
1978 - [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1979 -
1980 -
1981 -)))
1982 -
1983 -(((
1984 -= 10. Reference​​​​​ =
1985 -
1986 -* Product Page:
1987 -
1988 -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]]
1989 -
1990 -* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1991 -* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1992 -* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
1993 -)))
1994 -)))
1583 +[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
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