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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 68.20
edited by Xiaoling
on 2022/05/25 15:28
Change comment: There is no comment for this version
To version 55.1
edited by Xiaoling
on 2022/05/24 10:07
Change comment: Uploaded new attachment "image-20220524100748-11.png", version {1}

Summary

Details

Page properties
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
... ... @@ -167,7 +167,6 @@
167 167  * Firmware upgradable via program port
168 168  * Counting
169 169  
170 -
171 171  == 1.4  Applications ==
172 172  
173 173  * Smart Buildings & Home Automation
... ... @@ -177,7 +177,6 @@
177 177  * Smart Cities
178 178  * Smart Factory
179 179  
180 -
181 181  == 1.5 Hardware Variants ==
182 182  
183 183  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -191,8 +191,6 @@
191 191  * 1 x Counting Port
192 192  )))
193 193  
194 -
195 -
196 196  = 2. Power ON Device =
197 197  
198 198  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.
... ... @@ -203,29 +203,21 @@
203 203  
204 204  [[image:1653297104069-180.png]]
205 205  
206 -
207 207  = 3. Operation Mode =
208 208  
209 209  == 3.1 How it works? ==
210 210  
211 -(((
212 212  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. 
213 -)))
214 214  
215 -(((
216 -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.
217 217  
218 -
219 -)))
136 +3.2 Example to join LoRaWAN network
220 220  
221 -== 3.2 Example to join LoRaWAN network ==
222 -
223 -(((
224 224  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. 
225 -)))
226 226  
227 227  [[image:image-20220523172350-1.png||height="266" width="864"]]
228 228  
142 +
229 229  (((
230 230  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:
231 231  )))
... ... @@ -246,12 +246,10 @@
246 246  
247 247  [[image:1653297955910-247.png||height="321" width="716"]]
248 248  
249 -
250 250  Add APP KEY and DEV EUI
251 251  
252 252  [[image:1653298023685-319.png]]
253 253  
254 -
255 255  (((
256 256  **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.
257 257  )))
... ... @@ -258,7 +258,6 @@
258 258  
259 259  [[image:1653298044601-602.png||height="405" width="709"]]
260 260  
261 -
262 262  == 3.3 Uplink Payload ==
263 263  
264 264  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -270,7 +270,6 @@
270 270  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
271 271  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
272 272  
273 -
274 274  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
275 275  
276 276  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -306,7 +306,6 @@
306 306  * [1] RO1 relay channel is close and the RO1 LED is ON.
307 307  * [0] RO2 relay channel is open and RO2 LED is OFF;
308 308  
309 -
310 310  **LT22222-L:**
311 311  
312 312  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -322,14 +322,11 @@
322 322  ** DO1 is high in case there is load between DO1 and V+.
323 323  ** DO1 LED is off in both case
324 324  
325 -
326 326  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
327 327  
328 328  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
329 329  
330 -(((
331 331  Total : 11 bytes payload
332 -)))
333 333  
334 334  [[image:image-20220523180452-3.png]]
335 335  
... ... @@ -343,79 +343,54 @@
343 343  * FIRST: Indicate this is the first packet after join network.
344 344  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
345 345  
346 -(((
347 347  (% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
348 -)))
349 349  
350 -(((
351 351  **To use counting mode, please run:**
352 -)))
353 353  
354 354  (% class="box infomessage" %)
355 355  (((
356 -(((
357 357  **AT+MOD=2**
358 358  )))
359 -)))
360 360  
361 361  (% class="box infomessage" %)
362 362  (((
363 -(((
364 364  **ATZ**
365 365  )))
366 -)))
367 367  
368 -(((
369 369  (% style="color:#4f81bd" %)**AT Commands for counting:**
370 -)))
371 371  
372 -(((
373 373  **For LT22222-L:**
374 -)))
375 375  
376 376  (% class="box infomessage" %)
377 377  (((
378 -(((
379 379  **AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
380 380  )))
381 -)))
382 382  
383 383  (% class="box infomessage" %)
384 384  (((
385 -(((
386 386  **AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
387 387  )))
388 -)))
389 389  
390 390  (% class="box infomessage" %)
391 391  (((
392 -(((
393 393  **AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
394 394  )))
395 -)))
396 396  
397 397  (% class="box infomessage" %)
398 398  (((
399 -(((
400 400  **AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
401 401  )))
402 -)))
403 403  
404 404  (% class="box infomessage" %)
405 405  (((
406 -(((
407 407  **AT+SETCNT=1,60   (Set COUNT1 value to 60)**
408 408  )))
409 -)))
410 410  
411 411  (% class="box infomessage" %)
412 412  (((
413 -(((
414 414  **AT+SETCNT=2,60   (Set COUNT2 value to 60)**
415 415  )))
416 -)))
417 417  
418 -
419 419  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
420 420  
421 421  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -432,34 +432,22 @@
432 432  * FIRST: Indicate this is the first packet after join network.
433 433  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
434 434  
435 -(((
436 436  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
437 -)))
438 438  
439 -(((
440 440  **To use counting mode, please run:**
441 -)))
442 442  
443 443  (% class="box infomessage" %)
444 444  (((
445 -(((
446 446  **AT+MOD=3**
447 447  )))
448 -)))
449 449  
450 450  (% class="box infomessage" %)
451 451  (((
452 -(((
453 453  **ATZ**
454 454  )))
455 -)))
456 456  
457 -(((
458 -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]].
459 459  
460 -
461 -)))
462 -
463 463  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
464 464  
465 465  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -478,69 +478,45 @@
478 478  * FIRST: Indicate this is the first packet after join network.
479 479  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
480 480  
481 -(((
482 482  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
483 -)))
484 484  
485 -(((
486 486  **To use this mode, please run:**
487 -)))
488 488  
489 489  (% class="box infomessage" %)
490 490  (((
491 -(((
492 492  **AT+MOD=4**
493 493  )))
494 -)))
495 495  
496 496  (% class="box infomessage" %)
497 497  (((
498 -(((
499 499  **ATZ**
500 500  )))
501 -)))
502 502  
503 -(((
504 -
505 -)))
506 506  
507 -(((
508 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
509 -)))
365 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
510 510  
511 -(((
512 512  **Plus below command for AVI1 Counting:**
513 -)))
514 514  
515 515  (% class="box infomessage" %)
516 516  (((
517 -(((
518 518  **AT+SETCNT=3,60   (set AVI Count to 60)**
519 519  )))
520 -)))
521 521  
522 522  (% class="box infomessage" %)
523 523  (((
524 -(((
525 525  **AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
526 526  )))
527 -)))
528 528  
529 529  (% class="box infomessage" %)
530 530  (((
531 -(((
532 532  **AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
533 533  )))
534 -)))
535 535  
536 536  (% class="box infomessage" %)
537 537  (((
538 -(((
539 539  **AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
540 540  )))
541 -)))
542 542  
543 -
544 544  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
545 545  
546 546  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -553,38 +553,24 @@
553 553  
554 554  * RO is for relay. ROx=1 : close，ROx=0 always open.
555 555  * FIRST: Indicate this is the first packet after join network.
556 -* (((
557 -DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
558 -)))
401 +* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
559 559  
560 -(((
561 561  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
562 -)))
563 563  
564 -(((
565 565  **To use this mode, please run:**
566 -)))
567 567  
568 568  (% class="box infomessage" %)
569 569  (((
570 -(((
571 571  **AT+MOD=5**
572 572  )))
573 -)))
574 574  
575 575  (% class="box infomessage" %)
576 576  (((
577 -(((
578 578  **ATZ**
579 579  )))
580 -)))
581 581  
582 -(((
583 -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]].
584 584  
585 -
586 -)))
587 -
588 588  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
589 589  
590 590  (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
... ... @@ -632,7 +632,7 @@
632 632  
633 633  **Downlink Command to set Trigger Condition**
634 634  
635 -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]]
636 636  
637 637  Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
638 638  
... ... @@ -652,7 +652,7 @@
652 652  
653 653  Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
654 654  
655 -**Example2**: AA 02 01 00
486 +Example2: AA 02 01 00
656 656  
657 657  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
658 658  
... ... @@ -705,13 +705,10 @@
705 705  
706 706  When device got this command, it will send the MOD6 payload.
707 707  
708 -
709 709  === 3.3.7 Payload Decoder ===
710 710  
711 711  (((
712 712  **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/]]
713 -
714 -
715 715  )))
716 716  
717 717  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -726,12 +726,10 @@
726 726  
727 727  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
728 728  
729 -
730 730  === 3.4.1 Common Commands ===
731 731  
732 -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/]]
733 733  
734 -
735 735  === 3.4.2 Sensor related commands ===
736 736  
737 737  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -754,7 +754,6 @@
754 754  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
755 755  )))
756 756  
757 -
758 758  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
759 759  
760 760  Set work mode.
... ... @@ -775,7 +775,6 @@
775 775  **0x0A aa     ~/~/ Same as AT+MOD=aa**
776 776  )))
777 777  
778 -
779 779  ==== 3.4.2.3 Poll an uplink ====
780 780  
781 781  * AT Command:
... ... @@ -791,7 +791,6 @@
791 791  
792 792  **Example**: 0x08FF, ask device to send an Uplink
793 793  
794 -
795 795  ==== 3.4.2.4 Enable Trigger Mode ====
796 796  
797 797  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]]
... ... @@ -814,7 +814,6 @@
814 814  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
815 815  )))
816 816  
817 -
818 818  ==== 3.4.2.5 Poll trigger settings ====
819 819  
820 820  Poll trigger settings,
... ... @@ -830,7 +830,6 @@
830 830  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
831 831  )))
832 832  
833 -
834 834  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
835 835  
836 836  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -853,7 +853,6 @@
853 853  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
854 854  )))
855 855  
856 -
857 857  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
858 858  
859 859  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -880,7 +880,6 @@
880 880  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
881 881  )))
882 882  
883 -
884 884  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
885 885  
886 886  Set DI2 trigger.
... ... @@ -907,7 +907,6 @@
907 907  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
908 908  )))
909 909  
910 -
911 911  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
912 912  
913 913  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]]
... ... @@ -926,7 +926,6 @@
926 926  **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]]**
927 927  )))
928 928  
929 -
930 930  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
931 931  
932 932  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]]
... ... @@ -945,7 +945,6 @@
945 945  **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]] **
946 946  )))
947 947  
948 -
949 949  ==== 3.4.2.11 Trigger – Set minimum interval ====
950 950  
951 951  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -964,7 +964,6 @@
964 964  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
965 965  )))
966 966  
967 -
968 968  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
969 969  
970 970  * AT Command:
... ... @@ -1007,10 +1007,8 @@
1007 1007  
1008 1008  (% class="box infomessage" %)
1009 1009  (((
1010 -(((
1011 1011  **0xA9 aa bb cc     ~/~/ Set DO1/DO2/DO3 output with time control**
1012 1012  )))
1013 -)))
1014 1014  
1015 1015  This is to control the digital output time of DO pin. Include four bytes:
1016 1016  
... ... @@ -1155,7 +1155,6 @@
1155 1155  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1156 1156  )))
1157 1157  
1158 -
1159 1159  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1160 1160  
1161 1161  * AT Command:
... ... @@ -1180,7 +1180,6 @@
1180 1180  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1181 1181  )))
1182 1182  
1183 -
1184 1184  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1185 1185  
1186 1186  Clear counting for counting mode
... ... @@ -1199,7 +1199,6 @@
1199 1199  **0x A6 01     ~/~/ clear all counting,**
1200 1200  )))
1201 1201  
1202 -
1203 1203  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1204 1204  
1205 1205  * AT Command:
... ... @@ -1216,31 +1216,24 @@
1216 1216  **0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,**
1217 1217  )))
1218 1218  
1219 -(((
1220 1220  range: aa bb cc:0 to 16777215,  (unit:second)
1221 1221  
1222 -
1223 -)))
1224 -
1225 1225  == 3.5 Integrate with Mydevice ==
1226 1226  
1227 1227  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:
1228 1228  
1229 -(((
1230 1230  **Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1231 -)))
1232 1232  
1233 -(((
1234 1234  **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:
1235 -)))
1236 1236  
1237 1237  [[image:1653356737703-362.png||height="232" width="732"]]
1238 1238  
1239 1239  [[image:image-20220524094641-11.png||height="390" width="723"]]
1240 1240  
1043 +
1241 1241  [[image:image-20220524094641-12.png||height="402" width="718"]]
1242 1242  
1243 -**Step 3**: Create an account or log in Mydevices.
1046 +**Step **3: Create an account or log in Mydevices.
1244 1244  
1245 1245  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1246 1246  
... ... @@ -1248,9 +1248,9 @@
1248 1248  
1249 1249  [[image:1653356838789-523.png||height="337" width="740"]]
1250 1250  
1251 -
1252 1252  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1253 1253  
1056 +
1254 1254  [[image:image-20220524094909-1.png||height="335" width="729"]]
1255 1255  
1256 1256  [[image:image-20220524094909-2.png||height="337" width="729"]]
... ... @@ -1262,6 +1262,9 @@
1262 1262  [[image:image-20220524094909-5.png||height="341" width="734"]]
1263 1263  
1264 1264  
1068 +
1069 +
1070 +
1265 1265  == 3.6 Interface Detail ==
1266 1266  
1267 1267  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1270,7 +1270,6 @@
1270 1270  
1271 1271  [[image:1653356991268-289.png]]
1272 1272  
1273 -
1274 1274  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1275 1275  
1276 1276  (((
... ... @@ -1278,10 +1278,8 @@
1278 1278  )))
1279 1279  
1280 1280  (((
1281 -(((
1282 1282  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
1283 1283  )))
1284 -)))
1285 1285  
1286 1286  [[image:1653357170703-587.png]]
1287 1287  
... ... @@ -1299,7 +1299,7 @@
1299 1299  
1300 1300  So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1301 1301  
1302 -[[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.
1303 1303  
1304 1304  If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1305 1305  
... ... @@ -1313,9 +1313,9 @@
1313 1313  
1314 1314  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1315 1315  
1316 -[[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.**
1317 1317  
1318 -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: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.
1319 1319  
1320 1320  
1321 1321  **Example3**: Connect to a 220v high active sensor.
... ... @@ -1327,11 +1327,10 @@
1327 1327  
1328 1328  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1329 1329  
1330 - [[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.**
1331 1331  
1332 -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.
1333 1333  
1334 -
1335 1335  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1336 1336  
1337 1337  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1338,7 +1338,6 @@
1338 1338  
1339 1339  [[image:1653357531600-905.png]]
1340 1340  
1341 -
1342 1342  === 3.6.4 Analog Input Interface ===
1343 1343  
1344 1344  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:
... ... @@ -1366,636 +1366,417 @@
1366 1366  
1367 1367  [[image:1653357648330-671.png||height="155" width="733"]]
1368 1368  
1369 -
1370 1370  === 3.6.5 Relay Output ===
1371 1371  
1372 -(((
1373 1373  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:
1374 -)))
1375 1375  
1174 +
1376 1376  [[image:image-20220524100215-9.png]]
1377 1377  
1177 +
1378 1378  [[image:image-20220524100215-10.png||height="382" width="723"]]
1379 1379  
1380 1380  
1381 -== 3.7 LEDs Indicators ==
1382 1382  
1383 -[[image:image-20220524100748-11.png]]
1384 1384  
1385 1385  
1386 -= 4. Use AT Command =
1387 1387  
1388 -== 4.1 Access AT Command ==
1185 +1.
1186 +11. LEDs Indicators
1389 1389  
1390 -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.
1391 1391  
1392 -[[image:1653358238933-385.png]]
1195 +Successful join network: TX ON for 5 seconds.
1393 1393  
1394 -(((
1395 -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
1396 1396  )))
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
1397 1397  
1398 -[[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
1399 1399  
1400 -(((
1401 -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
1402 1402  )))
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
1403 1403  
1404 -(((
1405 -AT+<CMD>?        : Help on <CMD>
1217 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1406 1406  )))
1219 +|**RO1**|
1220 +|**RO2**|
1407 1407  
1408 -(((
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 +
1409 1409  AT+<CMD>         : Run <CMD>
1410 -)))
1411 1411  
1412 -(((
1413 1413  AT+<CMD>=<value> : Set the value
1414 -)))
1415 1415  
1416 -(((
1417 1417  AT+<CMD>=?       : Get the value
1418 -)))
1419 1419  
1420 -(((
1421 1421  ATZ: Trig a reset of the MCU
1422 -)))
1423 1423  
1424 -(((
1425 1425  AT+FDR: Reset Parameters to Factory Default, Keys Reserve 
1426 -)))
1427 1427  
1428 -(((
1429 1429  AT+DEUI: Get or Set the Device EUI
1430 -)))
1431 1431  
1432 -(((
1433 1433  AT+DADDR: Get or Set the Device Address
1434 -)))
1435 1435  
1436 -(((
1437 1437  AT+APPKEY: Get or Set the Application Key
1438 -)))
1439 1439  
1440 -(((
1441 1441  AT+NWKSKEY: Get or Set the Network Session Key
1442 -)))
1443 1443  
1444 -(((
1445 1445  AT+APPSKEY: Get or Set the Application Session Key
1446 -)))
1447 1447  
1448 -(((
1449 1449  AT+APPEUI: Get or Set the Application EUI
1450 -)))
1451 1451  
1452 -(((
1453 1453  AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1454 -)))
1455 1455  
1456 -(((
1457 1457  AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1458 -)))
1459 1459  
1460 -(((
1461 1461  AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1462 -)))
1463 1463  
1464 -(((
1465 1465  AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1466 -)))
1467 1467  
1468 -(((
1469 1469  AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1470 -)))
1471 1471  
1472 -(((
1473 1473  AT+RX2FQ: Get or Set the Rx2 window frequency
1474 -)))
1475 1475  
1476 -(((
1477 1477  AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1478 -)))
1479 1479  
1480 -(((
1481 1481  AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1482 -)))
1483 1483  
1484 -(((
1485 1485  AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1486 -)))
1487 1487  
1488 -(((
1489 1489  AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1490 -)))
1491 1491  
1492 -(((
1493 1493  AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1494 -)))
1495 1495  
1496 -(((
1497 1497  AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1498 -)))
1499 1499  
1500 -(((
1501 1501  AT+NWKID: Get or Set the Network ID
1502 -)))
1503 1503  
1504 -(((
1505 1505  AT+FCU: Get or Set the Frame Counter Uplink
1506 -)))
1507 1507  
1508 -(((
1509 1509  AT+FCD: Get or Set the Frame Counter Downlink
1510 -)))
1511 1511  
1512 -(((
1513 1513  AT+CLASS: Get or Set the Device Class
1514 -)))
1515 1515  
1516 -(((
1517 1517  AT+JOIN: Join network
1518 -)))
1519 1519  
1520 -(((
1521 1521  AT+NJS: Get OTAA Join Status
1522 -)))
1523 1523  
1524 -(((
1525 1525  AT+SENDB: Send hexadecimal data along with the application port
1526 -)))
1527 1527  
1528 -(((
1529 1529  AT+SEND: Send text data along with the application port
1530 -)))
1531 1531  
1532 -(((
1533 1533  AT+RECVB: Print last received data in binary format (with hexadecimal values)
1534 -)))
1535 1535  
1536 -(((
1537 1537  AT+RECV: Print last received data in raw format
1538 -)))
1539 1539  
1540 -(((
1541 1541  AT+VER: Get current image version and Frequency Band
1542 -)))
1543 1543  
1544 -(((
1545 1545  AT+CFM: Get or Set the confirmation mode (0-1)
1546 -)))
1547 1547  
1548 -(((
1549 1549  AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1550 -)))
1551 1551  
1552 -(((
1553 1553  AT+SNR: Get the SNR of the last received packet
1554 -)))
1555 1555  
1556 -(((
1557 1557  AT+RSSI: Get the RSSI of the last received packet
1558 -)))
1559 1559  
1560 -(((
1561 1561  AT+TDC: Get or set the application data transmission interval in ms
1562 -)))
1563 1563  
1564 -(((
1565 1565  AT+PORT: Get or set the application port
1566 -)))
1567 1567  
1568 -(((
1569 1569  AT+DISAT: Disable AT commands
1570 -)))
1571 1571  
1572 -(((
1573 1573  AT+PWORD: Set password, max 9 digits
1574 -)))
1575 1575  
1576 -(((
1577 1577  AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1578 -)))
1579 1579  
1580 -(((
1581 1581  AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1582 -)))
1583 1583  
1584 -(((
1585 1585  AT+CFG: Print all settings
1586 1586  
1587 -
1588 -)))
1589 1589  
1590 -== 4.2 Common AT Command Sequence ==
1591 1591  
1592 -=== 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)
1593 1593  
1594 -(((
1595 1595  If device has not joined network yet:
1596 -)))
1597 1597  
1598 -(((
1599 -(% style="background-color:#dcdcdc" %)123456
1600 -)))
1337 +123456
1601 1601  
1602 -(((
1603 -(% style="background-color:#dcdcdc" %)AT+FDR
1604 -)))
1339 +AT+FDR
1605 1605  
1606 -(((
1607 -(% style="background-color:#dcdcdc" %)123456
1608 -)))
1341 +123456
1609 1609  
1610 -(((
1611 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1612 -)))
1343 +AT+NJM=0
1613 1613  
1614 -(((
1615 -(% style="background-color:#dcdcdc" %)ATZ
1616 -)))
1345 +ATZ
1617 1617  
1618 1618  
1619 -(((
1620 1620  If device already joined network:
1621 -)))
1622 1622  
1623 -(((
1624 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1625 -)))
1350 +AT+NJM=0
1626 1626  
1627 -(((
1628 -(% style="background-color:#dcdcdc" %)ATZ
1352 +ATZ
1629 1629  
1630 -
1631 -)))
1354 +1.
1355 +11.
1356 +111. Single-channel ABP mode (Use with LG01/LG02)
1632 1632  
1633 -=== 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1358 +123456   Enter Password to have AT access.
1634 1634  
1635 -(((
1636 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1637 -)))
1360 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1638 1638  
1639 -(((
1640 -(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1641 -)))
1362 +123456   Enter Password to have AT access.
1642 1642  
1643 -(((
1644 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1645 -)))
1364 +AT+CLASS=C Set to work in CLASS C
1646 1646  
1647 -(((
1648 -(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1649 -)))
1366 +AT+NJM=0 Set to ABP mode
1650 1650  
1651 -(((
1652 -(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1653 -)))
1368 +AT+ADR=0 Set the Adaptive Data Rate Off
1654 1654  
1655 -(((
1656 -(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off
1657 -)))
1370 +AT+DR=5  Set Data Rate
1658 1658  
1659 -(((
1660 -(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1661 -)))
1372 +AT+TDC=60000  Set transmit interval to 60 seconds
1662 1662  
1663 -(((
1664 -(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1665 -)))
1374 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1666 1666  
1667 -(((
1668 -(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
1669 -)))
1376 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1670 1670  
1671 -(((
1672 -(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1673 -)))
1378 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1674 1674  
1675 -(((
1676 -(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1677 -)))
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.
1678 1678  
1679 -(((
1680 -(% 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.
1681 -)))
1382 +ATZ          Reset MCU
1682 1682  
1683 -(((
1684 -(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1685 -)))
1384 +**Note:**
1686 1686  
1687 -(((
1688 -(% style="color:red" %)**Note:**
1689 -)))
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
1690 1690  
1691 -(((
1692 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1693 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1694 -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.
1695 -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
1696 -)))
1391 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1697 1697  
1698 -(((
1699 -[[image:1653359097980-169.png||height="188" width="729"]]
1700 -)))
1701 1701  
1702 -(((
1703 -
1704 -)))
1394 +1.
1395 +11.
1396 +111. Change to Class A
1705 1705  
1706 -=== 4.2.3 Change to Class A ===
1707 -
1708 1708  If sensor JOINED
1709 -(% style="background-color:#dcdcdc" %)AT+CLASS=A
1399 +
1400 +AT+CLASS=A
1401 +
1710 1710  ATZ
1711 1711  
1712 1712  
1713 -= 5. FAQ =
1714 1714  
1715 -== 5.1 How to upgrade the image? ==
1716 1716  
1407 +
1408 +1. FAQ
1409 +
1410 +1.
1411 +11. How to upgrade the image?
1412 +
1717 1717  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1718 1718  
1719 1719  * Support new features
1720 1720  * For bug fix
1721 1721  * Change LoRaWAN bands.
1418 +
1722 1722  Below shows the hardware connection for how to upload an image to the LT:
1723 -* [[image:1653359603330-121.png]]
1724 1724  
1725 -(((
1421 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1422 +
1423 +
1726 1726  **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 +
1727 1727  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1427 +
1728 1728  **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 +
1729 1729  **For LT-22222-L**:
1435 +
1730 1730  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
1731 1731  )))
1732 1732  
1733 - [[image:image-20220524103407-12.png]]
1444 +|(((
1445 +
1446 +)))
1734 1734  
1735 -[[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]]
1736 1736  
1737 -[[image:image-20220524104033-15.png]]
1738 1738  
1739 -(% 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:
1740 1740  
1741 -[[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]]
1742 1742  
1743 1743  
1744 -(((
1745 -(((
1746 -== 5.2 How to change the LoRa Frequency Bands/Region? ==
1747 -)))
1748 -)))
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]]
1749 1749  
1750 -(((
1751 -User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1752 1752  
1753 -
1754 -)))
1458 +**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1755 1755  
1756 -(((
1757 -== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1758 -)))
1460 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1759 1759  
1760 -(((
1761 -(((
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 +
1762 1762  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
1763 -)))
1764 -)))
1765 1765  
1766 -(((
1767 -(((
1768 1768  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1769 -)))
1770 -)))
1771 1771  
1772 -(((
1773 -(% 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.
1774 -)))
1775 1775  
1776 -(((
1777 -[[image:1653360231087-571.png||height="401" width="727"]]
1778 -)))
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.
1779 1779  
1780 -(((
1781 -(% 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.
1782 -)))
1479 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]
1783 1783  
1784 -(((
1785 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1786 -)))
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.
1787 1787  
1788 -(((
1789 -(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1790 -(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1791 -(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1792 -(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1793 -(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1794 -(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1795 -(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1796 -(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1797 -(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1798 -(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1799 -)))
1800 1800  
1801 -(((
1802 -As shown in below:
1803 -)))
1484 +**Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1804 1804  
1805 -[[image:1653360498588-932.png||height="485" width="726"]]
1486 +123456   Enter Password to have AT access.
1806 1806  
1488 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1807 1807  
1808 -== 5.4 Can I see counting event in Serial? ==
1490 +123456   Enter Password to have AT access.
1809 1809  
1810 -(((
1811 -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
1812 1812  
1813 -
1814 -)))
1494 +AT+ADR=0 Set the Adaptive Data Rate Off
1815 1815  
1816 -(((
1817 -= 6. Trouble Shooting =
1818 -)))
1496 +AT+DR=5  Set Data Rate (Set AT+DR=3 for 915 band)
1819 1819  
1820 -(((
1821 -(((
1822 -== 6.1 Downlink doesn’t work, how to solve it? ==
1823 -)))
1824 -)))
1498 +AT+TDC=60000  Set transmit interval to 60 seconds
1825 1825  
1826 -(((
1827 -Please see this link for how to debug:
1500 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1828 1828  
1829 -[[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
1830 1830  
1831 -
1832 -)))
1504 +ATZ                Reset MCU
1833 1833  
1834 -(((
1835 -== 6.2 Have trouble to upload image. ==
1836 -)))
1506 +As shown in below:
1837 1837  
1838 -(((
1839 -See this link for trouble shooting:
1508 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]
1840 1840  
1841 -[[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/]]
1842 -)))
1843 1843  
1844 -(((
1845 -
1846 -)))
1847 1847  
1848 -(((
1849 -== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1850 -)))
1512 +1.
1513 +11. Can I see counting event in Serial?
1851 1851  
1852 -(((
1853 -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.
1854 1854  
1855 -[[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]]
1856 -)))
1857 1857  
1858 -(((
1859 -
1860 -)))
1861 1861  
1862 -(((
1863 -= 7. Order Info =
1864 -)))
1865 1865  
1866 -(((
1867 -(((
1868 -(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1869 -)))
1870 -)))
1520 +1. Trouble Shooting     
1521 +11. Downlink doesn’t work, how to solve it?
1871 1871  
1872 -(((
1873 -(((
1874 -(% style="color:#4f81bd" %)**XXX:**
1875 -)))
1876 -)))
1523 +Please see this link for how to debug:
1877 1877  
1878 -(((
1879 -* (((
1880 -(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1881 -)))
1882 -)))
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]]
1883 1883  
1884 -(((
1885 -* (((
1886 -(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1887 -)))
1888 -)))
1889 1889  
1890 -(((
1891 -* (((
1892 -(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1893 -)))
1894 -)))
1528 +1.
1529 +11. Have trouble to upload image.
1895 1895  
1896 -(((
1897 -* (((
1898 -(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1899 -)))
1900 -)))
1531 +See this link for trouble shooting:
1901 1901  
1902 -(((
1903 -* (((
1904 -(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1905 -)))
1906 -)))
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]]
1907 1907  
1908 -(((
1909 -* (((
1910 -(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1911 -)))
1912 -)))
1913 1913  
1914 -(((
1915 -* (((
1916 -(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1917 -)))
1918 -)))
1536 +1.
1537 +11. Why I can’t join TTN in US915 /AU915 bands?
1919 1919  
1920 -(((
1921 -* (((
1922 -(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1923 -)))
1924 -)))
1539 +It might be about the channels mapping. Please see this link for detail:
1925 1925  
1926 -(((
1927 -* (((
1928 -(% 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]]
1929 1929  
1930 -
1931 -)))
1932 1932  
1933 -= 8. Packing Info =
1934 -)))
1935 1935  
1936 -(((
1937 -(((
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 +
1938 1938  **Package Includes**:
1939 -)))
1940 -)))
1941 1941  
1942 -(((
1943 -(((
1944 -* LT-22222-L I/O Controller x 1
1566 +* LT I/O Controller x 1
1945 1945  * Stick Antenna for LoRa RF part x 1
1946 1946  * Bracket for controller x1
1947 1947  * Program cable x 1
1948 -)))
1949 -)))
1950 1950  
1951 -(((
1952 -(((
1953 1953  **Dimension and weight**:
1954 -)))
1955 -)))
1956 1956  
1957 -(((
1958 -(((
1959 1959  * Device Size: 13.5 x 7 x 3 cm
1960 1960  * Device Weight: 105g
1961 1961  * Package Size / pcs : 14.5 x 8 x 5 cm
1962 1962  * Weight / pcs : 170g
1963 1963  
1964 -
1965 -)))
1966 -)))
1578 +1. Support
1967 1967  
1968 -(((
1969 -= 9. Support =
1970 -)))
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
1971 1971  
1972 -* (((
1973 -(((
1974 -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.
1975 -)))
1976 -)))
1977 -* (((
1978 -(((
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
1980 -)))
1981 -)))
1982 -
1983 -(((
1984 -(((
1985 - [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1986 -
1987 -
1988 -)))
1989 -
1990 -(((
1991 -= 10. Reference​​​​​ =
1992 -
1993 -* Product Page:
1994 -
1995 -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]]
1996 -
1997 -* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1998 -* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1999 -* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2000 -)))
2001 -)))
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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