Version 110.2 by Xiaoling on 2022/12/23 08:41
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1 (% style="text-align:center" %)
2 [[image:image-20220523163353-1.jpeg||height="604" width="500"]]
3
4
5
6 **Table of Contents:**
7
8 {{toc/}}
9
10
11
12
13
14
15
16 = 1.Introduction =
17
18 == 1.1 What is LT Series I/O Controller ==
19
20 (((
21
22
23 (((
24 The Dragino (% style="color:blue" %)**LT series I/O Modules**(%%) are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as:** (% style="color:blue" %)analog current Input, analog voltage input(%%)**(% style="color:blue" %), **relay output**, **digital input**(%%) and (% style="color:blue" %)**digital output**(%%) etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
25 )))
26 )))
27
28 (((
29 The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
30 )))
31
32 (((
33 The LT I/O Controllers is aiming to provide an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
34 )))
35
36 (((
37 The use environment includes:
38 )))
39
40 (((
41 1) If user's area has LoRaWAN service coverage, they can just install the I/O controller and configure it to connect the LoRaWAN provider via wireless.
42 )))
43
44 (((
45 2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
46
47
48 )))
49
50 (((
51 [[image:1653295757274-912.png]]
52
53
54 )))
55
56 == 1.2  Specifications ==
57
58 (((
59
60
61 (% style="color:#037691" %)**Hardware System:**
62 )))
63
64 * (((
65 STM32L072xxxx MCU
66 )))
67 * (((
68 SX1276/78 Wireless Chip 
69 )))
70 * (((
71 (((
72 Power Consumption:
73 )))
74
75 * (((
76 Idle: 4mA@12v
77 )))
78 * (((
79 20dB Transmit: 34mA@12v
80 )))
81 )))
82
83 (((
84
85
86 (% style="color:#037691" %)**Interface for Model: LT22222-L:**
87 )))
88
89 * (((
90 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
91 )))
92 * (((
93 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
94 )))
95 * (((
96 2 x Relay Output (5A@250VAC / 30VDC)
97 )))
98 * (((
99 2 x 0~~20mA Analog Input (res:0.01mA)
100 )))
101 * (((
102 2 x 0~~30V Analog Input (res:0.01v)
103 )))
104 * (((
105 Power Input 7~~ 24V DC. 
106 )))
107
108 (((
109
110
111 (% style="color:#037691" %)**LoRa Spec:**
112 )))
113
114 * (((
115 (((
116 Frequency Range:
117 )))
118
119 * (((
120 Band 1 (HF): 862 ~~ 1020 Mhz
121 )))
122 * (((
123 Band 2 (LF): 410 ~~ 528 Mhz
124 )))
125 )))
126 * (((
127 168 dB maximum link budget.
128 )))
129 * (((
130 +20 dBm - 100 mW constant RF output vs.
131 )))
132 * (((
133 +14 dBm high efficiency PA.
134 )))
135 * (((
136 Programmable bit rate up to 300 kbps.
137 )))
138 * (((
139 High sensitivity: down to -148 dBm.
140 )))
141 * (((
142 Bullet-proof front end: IIP3 = -12.5 dBm.
143 )))
144 * (((
145 Excellent blocking immunity.
146 )))
147 * (((
148 Low RX current of 10.3 mA, 200 nA register retention.
149 )))
150 * (((
151 Fully integrated synthesizer with a resolution of 61 Hz.
152 )))
153 * (((
154 FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
155 )))
156 * (((
157 Built-in bit synchronizer for clock recovery.
158 )))
159 * (((
160 Preamble detection.
161 )))
162 * (((
163 127 dB Dynamic Range RSSI.
164 )))
165 * (((
166 Automatic RF Sense and CAD with ultra-fast AFC.
167 )))
168 * (((
169 Packet engine up to 256 bytes with CRC.
170
171
172
173 )))
174
175 == 1.3 Features ==
176
177
178 * LoRaWAN Class A & Class C protocol
179 * Optional Customized LoRa Protocol
180 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
181 * AT Commands to change parameters
182 * Remote configure parameters via LoRa Downlink
183 * Firmware upgradable via program port
184 * Counting
185
186
187
188 == 1.4  Applications ==
189
190
191 * Smart Buildings & Home Automation
192 * Logistics and Supply Chain Management
193 * Smart Metering
194 * Smart Agriculture
195 * Smart Cities
196 * Smart Factory
197
198
199
200 == 1.5 Hardware Variants ==
201
202
203 (% border="1" style="background-color:#f7faff; width:500px" %)
204 |(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
205 |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
206 * 2 x Digital Input (Bi-direction)
207 * 2 x Digital Output
208 * 2 x Relay Output (5A@250VAC / 30VDC)
209 * 2 x 0~~20mA Analog Input (res:0.01mA)
210 * 2 x 0~~30V Analog Input (res:0.01v)
211 * 1 x Counting Port
212 )))
213
214
215
216 = 2. Power ON Device =
217
218
219 (((
220 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.
221 )))
222
223 (((
224 PWR will on when device is properly powered.
225
226
227 )))
228
229 [[image:1653297104069-180.png]]
230
231
232 = 3. Operation Mode =
233
234 == 3.1 How it works? ==
235
236
237 (((
238 The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on (% style="color:green" %)**TX LED**(%%) will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. (% style="color:green" %)**TX LED**(%%) will be on for 5 seconds after joined in network. When there is message from server, the RX LED will be on for 1 second. 
239 )))
240
241 (((
242 In case user can't set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
243 )))
244
245
246 == 3.2 Example to join LoRaWAN network ==
247
248
249 (((
250 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. 
251
252
253 )))
254
255 [[image:image-20220523172350-1.png||height="266" width="864"]]
256
257
258 (((
259 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:
260
261
262 )))
263
264 (((
265 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LT IO controller.
266 )))
267
268 (((
269 Each LT is shipped with a sticker with the default device EUI as below:
270 )))
271
272 [[image:1653297924498-393.png]]
273
274
275 Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
276
277 **Add APP EUI in the application.**
278
279 [[image:1653297955910-247.png||height="321" width="716"]]
280
281
282 **Add APP KEY and DEV EUI**
283
284 [[image:1653298023685-319.png]]
285
286
287
288 (((
289 (% style="color:blue" %)**Step 2**(%%): Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
290
291
292 )))
293
294 [[image:1653298044601-602.png||height="405" width="709"]]
295
296
297 == 3.3 Uplink Payload ==
298
299
300 There are five working modes + one interrupt mode on LT for different type application:
301
302 * (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
303 * (% style="color:blue" %)**MOD2**(%%): Double DI Counting + DO + RO
304 * (% style="color:blue" %)**MOD3**(%%): Single DI Counting + 2 x ACI + DO + RO
305 * (% style="color:blue" %)**MOD4**(%%): Single DI Counting + 1 x Voltage Counting + DO + RO
306 * (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
307 * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
308
309
310
311 === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
312
313
314 (((
315 The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
316 )))
317
318 [[image:image-20220523174024-3.png]]
319
320 (((
321
322
323 (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
324 )))
325
326 [[image:image-20220523174254-4.png]]
327
328 * RO is for relay. ROx=1 : close，ROx=0 always open.
329 * DI is for digital input. DIx=1: high or float, DIx=0: low.
330 * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
331
332 (% style="color:red" %)**Note: DI3 and DO3 bit are not valid for LT-22222-L**
333
334 For example if payload is: [[image:image-20220523175847-2.png]]
335
336
337 **The value for the interface is:  **
338
339 AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
340
341 AVI2 channel voltage is 0x04AC/1000=1.196V
342
343 ACI1 channel current is 0x1310/1000=4.880mA
344
345 ACI2 channel current is 0x1300/1000=4.864mA
346
347 The last byte 0xAA= 10101010(B) means
348
349 * [1] RO1 relay channel is close and the RO1 LED is ON.
350 * [0] RO2 relay channel is open and RO2 LED is OFF;
351
352 **LT22222-L:**
353
354 * [1] DI2 channel is high input and DI2 LED is ON;
355 * [0] DI1 channel is low input;
356
357 * [0] DO3 channel output state
358 ** DO3 is float in case no load between DO3 and V+.;
359 ** DO3 is high in case there is load between DO3 and V+.
360 ** DO3 LED is off in both case
361 * [1] DO2 channel output is low and DO2 LED is ON.
362 * [0] DO1 channel output state
363 ** DO1 is float in case no load between DO1 and V+.;
364 ** DO1 is high in case there is load between DO1 and V+.
365 ** DO1 LED is off in both case
366
367
368
369 === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
370
371
372 (((
373 **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
374 )))
375
376 (((
377 Total : 11 bytes payload
378 )))
379
380 [[image:image-20220523180452-3.png]]
381
382
383 (((
384 (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
385 )))
386
387 [[image:image-20220523180506-4.png]]
388
389 * RO is for relay. ROx=1 : close，ROx=0 always open.
390 * FIRST: Indicate this is the first packet after join network.
391 * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
392
393 (((
394 (% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
395 )))
396
397 (((
398
399
400 **To use counting mode, please run:**
401 )))
402
403 (% class="box infomessage" %)
404 (((
405 (((
406 (((
407 **AT+MOD=2**
408 )))
409
410 (((
411 **ATZ**
412 )))
413 )))
414 )))
415
416 (((
417
418
419 (% style="color:#4f81bd" %)**AT Commands for counting:**
420
421
422 )))
423
424 (((
425 **For LT22222-L:**
426
427
428 (% style="color:blue" %)**AT+TRIG1=0,100**(%%)**  (set DI1 port to trigger on low level, valid signal is 100ms) **
429
430 (% style="color:blue" %)**AT+TRIG1=1,100**(%%)**  (set DI1 port to trigger on high level, valid signal is 100ms ) **
431
432 (% style="color:blue" %)**AT+TRIG2=0,100**(%%)**  (set DI2 port to trigger on low level, valid signal is 100ms) **
433
434 (% style="color:blue" %)**AT+TRIG2=1,100**(%%)**  (set DI2 port to trigger on high level, valid signal is 100ms ) **
435
436 (% style="color:blue" %)**AT+SETCNT=1,60**(%%)**   (Set COUNT1 value to 60)**
437
438 (% style="color:blue" %)**AT+SETCNT=2,60**(%%)**   (Set COUNT2 value to 60)**
439 )))
440
441
442 === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
443
444
445 **LT22222-L**: This mode the DI1 is used as a counting pin.
446
447 [[image:image-20220523181246-5.png]]
448
449 (((
450
451
452 (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
453 )))
454
455 [[image:image-20220523181301-6.png]]
456
457 * RO is for relay. ROx=1 : close，ROx=0 always open.
458 * FIRST: Indicate this is the first packet after join network.
459 * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
460
461 (((
462 (% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
463 )))
464
465
466 (((
467 **To use counting mode, please run:**
468 )))
469
470 (% class="box infomessage" %)
471 (((
472 (((
473 (((
474 **AT+MOD=3**
475 )))
476
477 (((
478 **ATZ**
479 )))
480 )))
481 )))
482
483 (((
484 Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
485 )))
486
487
488 === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
489
490
491 (((
492 **LT22222-L**: This mode the DI1 is used as a counting pin.
493 )))
494
495 (((
496 The AVI1 is also used for counting. AVI1 is used to monitor the voltage. It will check the voltage **every 60s**, if voltage is higher or lower than VOLMAX mV, the AVI1 Counting increase 1, so AVI1 counting can be used to measure a machine working hour.
497 )))
498
499 [[image:image-20220523181903-8.png]]
500
501
502 (((
503 (% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
504 )))
505
506 [[image:image-20220523181727-7.png]]
507
508 * RO is for relay. ROx=1 : close，ROx=0 always open.
509 * FIRST: Indicate this is the first packet after join network.
510 * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
511
512 (((
513 (% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
514 )))
515
516 (((
517
518
519 **To use this mode, please run:**
520 )))
521
522 (% class="box infomessage" %)
523 (((
524 (((
525 (((
526 **AT+MOD=4**
527 )))
528
529 (((
530 **ATZ**
531 )))
532 )))
533 )))
534
535
536 (((
537 Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
538 )))
539
540 (((
541
542
543 **Plus below command for AVI1 Counting:**
544
545
546 (% style="color:blue" %)**AT+SETCNT=3,60**(%%)**  (set AVI Count to 60)**
547
548 (% style="color:blue" %)**AT+VOLMAX=20000**(%%)**  (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
549
550 (% style="color:blue" %)**AT+VOLMAX=20000,0**(%%)**  (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
551
552 (% style="color:blue" %)**AT+VOLMAX=20000,1**(%%)**  (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
553 )))
554
555
556 === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
557
558
559 **LT22222-L**: This mode the DI1 is used as a counting pin.
560
561 [[image:image-20220523182334-9.png]]
562
563 (((
564
565
566 (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
567 )))
568
569 * RO is for relay. ROx=1 : close，ROx=0 always open.
570 * FIRST: Indicate this is the first packet after join network.
571 * (((
572 DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
573 )))
574
575 (((
576 (% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
577 )))
578
579 (((
580
581
582 **To use this mode, please run:**
583 )))
584
585 (% class="box infomessage" %)
586 (((
587 (((
588 (((
589 **AT+MOD=5**
590 )))
591
592 (((
593 **ATZ**
594 )))
595 )))
596 )))
597
598 (((
599 Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
600 )))
601
602
603 === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
604
605
606 (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
607
608 For example, if user has configured below commands:
609
610 * **AT+MOD=1 ** **~-~->**  The normal working mode
611 * **AT+ADDMOD6=1**   **~-~->**  Enable trigger
612
613 LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
614
615 1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN (% style="color:#4f81bd" %)**unconfirmed**(%%) data type
616 1. Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first uplink use payload specify in this mod (mod=6), the second packets use the normal mod payload(MOD=1 for above settings). Both Uplinks use LoRaWAN (% style="color:#4f81bd" %)**CONFIRMED data type.**
617
618 (% style="color:#037691" %)**AT Command to set Trigger Condition**:
619
620
621 (% style="color:#4f81bd" %)**Trigger base on voltage**:
622
623 Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
624
625
626 **Example:**
627
628 AT+AVLIM=3000,6000,0,2000   (If AVI1 voltage lower than 3v or higher than 6v. or AV2 voltage is higher than 2v, LT will trigger Uplink)
629
630 AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
631
632
633
634 (% style="color:#4f81bd" %)**Trigger base on current**:
635
636 Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
637
638
639 **Example:**
640
641 AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
642
643
644
645 (% style="color:#4f81bd" %)**Trigger base on DI status**:
646
647 DI status trigger Flag.
648
649 Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >
650
651
652 **Example:**
653
654 AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
655
656
657
658 (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
659
660 Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
661
662 Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
663
664 AA: Code for this downlink Command:
665
666 xx: 0: Limit for AV1 and AV2;  1: limit for AC1 and AC2 ; 2 DI1, DI2 trigger enable/disable
667
668 yy1 yy1: AC1 or AV1 low limit or DI1/DI2 trigger status.
669
670 yy2 yy2: AC1 or AV1 high limit.
671
672 yy3 yy3: AC2 or AV2 low limit.
673
674 Yy4 yy4: AC2 or AV2 high limit.
675
676
677 **Example1**: AA 00 13 88 00 00 00 00 00 00
678
679 Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
680
681
682 **Example2**: AA 02 01 00
683
684 Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
685
686
687
688 (% style="color:#4f81bd" %)**Trigger Settings Payload Explanation:**
689
690 MOD6 Payload : total 11 bytes payload
691
692 [[image:image-20220524085923-1.png]]
693
694
695 (% style="color:#4f81bd" %)**TRI FLAG1**(%%) is a combination to show if trigger is set for this part. Totally 1byte as below
696
697 [[image:image-20220524090106-2.png]]
698
699 * Each bits shows if the corresponding trigger has been configured.
700
701 **Example:**
702
703 10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
704
705
706
707 (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
708
709 [[image:image-20220524090249-3.png]]
710
711 * Each bits shows which status has been trigger on this uplink.
712
713 **Example:**
714
715 10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
716
717
718
719 (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
720
721 [[image:image-20220524090456-4.png]]
722
723 * Each bits shows which status has been trigger on this uplink.
724
725 **Example:**
726
727 00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
728
729 00000101: Means both DI1 and DI2 trigger are enabled.
730
731
732
733 (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
734
735 Downlink command to poll MOD6 status:
736
737 **AB 06**
738
739 When device got this command, it will send the MOD6 payload.
740
741
742 === 3.3.7 Payload Decoder ===
743
744 (((
745
746
747 **Decoder for TTN/loraserver/ChirpStack**:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
748 )))
749
750
751 == 3.4 ​Configure LT via AT or Downlink ==
752
753
754 (((
755 User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
756 )))
757
758 (((
759 (((
760 There are two kinds of Commands:
761 )))
762 )))
763
764 * (% style="color:blue" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
765
766 * (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
767
768
769
770 === 3.4.1 Common Commands ===
771
772
773 (((
774 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]]
775 )))
776
777
778 === 3.4.2 Sensor related commands ===
779
780 ==== 3.4.2.1 Set Transmit Interval ====
781
782
783 Set device uplink interval.
784
785 * (% style="color:#037691" %)**AT Command:**
786
787 (% style="color:blue" %)**AT+TDC=N **
788
789
790 **Example: **AT+TDC=30000. Means set interval to 30 seconds
791
792
793 * (% style="color:#037691" %)**Downlink Payload (prefix 0x01):**
794
795 (% style="color:blue" %)**0x01 aa bb cc  **(%%)** ~/~/ Same as AT+TDC=0x(aa bb cc)**
796
797
798
799 ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
800
801
802 Set work mode.
803
804 * (% style="color:#037691" %)**AT Command:**
805
806 (% style="color:blue" %)**AT+MOD=N  **
807
808
809 **Example**: AT+MOD=2. Set work mode to Double DI counting mode
810
811
812 * (% style="color:#037691" %)**Downlink Payload (prefix 0x0A):**
813
814 (% style="color:blue" %)**0x0A aa  **(%%)** ** ~/~/ Same as AT+MOD=aa
815
816
817
818 ==== 3.4.2.3 Poll an uplink ====
819
820
821 * (% style="color:#037691" %)**AT Command:**
822
823 There is no AT Command to poll uplink
824
825
826 * (% style="color:#037691" %)**Downlink Payload (prefix 0x08):**
827
828 (% style="color:blue" %)**0x08 FF  **(%%)** **~/~/ Poll an uplink
829
830
831 **Example**: 0x08FF, ask device to send an Uplink
832
833
834
835 ==== 3.4.2.4 Enable Trigger Mode ====
836
837
838 Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
839
840 * (% style="color:#037691" %)**AT Command:**
841
842 (% style="color:blue" %)**AT+ADDMOD6=1 or 0**
843
844 (% style="color:red" %)**1:** (%%)Enable Trigger Mode
845
846 (% style="color:red" %)**0: **(%%)Disable Trigger Mode
847
848
849 * (% style="color:#037691" %)**Downlink Payload (prefix 0x0A 06):**
850
851 (% style="color:blue" %)**0x0A 06 aa    **(%%) ~/~/ Same as AT+ADDMOD6=aa
852
853
854
855 ==== 3.4.2.5 Poll trigger settings ====
856
857
858 Poll trigger settings,
859
860 * (% style="color:#037691" %)**AT Command:**
861
862 There is no AT Command for this feature.
863
864
865 * (% style="color:#037691" %)**Downlink Payload (prefix 0x AB 06):**
866
867 (% style="color:blue" %)**0xAB 06  ** (%%) ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command
868
869
870
871 ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
872
873
874 Enable Disable DI1/DI2/DI2 as trigger,
875
876 * (% style="color:#037691" %)**AT Command:**
877
878 (% style="color:blue" %)**Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
879
880
881 **Example:**
882
883 AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
884
885 * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 02):**
886
887 (% style="color:blue" %)**0xAA 02 aa bb   ** (%%) ~/~/ Same as AT+DTRI=aa,bb
888
889
890
891 ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
892
893
894 Set DI1 or DI3(for LT-33222-L) trigger.
895
896 * (% style="color:#037691" %)**AT Command:**
897
898 (% style="color:blue" %)**AT+TRIG1=a,b**
899
900 (% style="color:red" %)**a :** (%%)Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
901
902 (% style="color:red" %)**b :** (%%)delay timing.
903
904
905 **Example:**
906
907 AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms )
908
909
910 * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
911
912 (% style="color:blue" %)**0x09 01 aa bb cc    ** (%%) ~/~/ same as AT+TRIG1=aa,0x(bb cc)
913
914
915
916 ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
917
918
919 Set DI2 trigger.
920
921 * (% style="color:#037691" %)**AT Command:**
922
923 (% style="color:blue" %)**AT+TRIG2=a,b**
924
925 (% style="color:red" %)**a :** (%%)Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
926
927 (% style="color:red" %)**b :** (%%)delay timing.
928
929
930 **Example:**
931
932 AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
933
934
935 * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 02 ):**
936
937 (% style="color:blue" %)**0x09 02 aa bb cc   ** (%%)~/~/ same as AT+TRIG2=aa,0x(bb cc)
938
939
940
941 ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
942
943
944 Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
945
946 * (% style="color:#037691" %)**AT Command**
947
948 (% style="color:blue" %)**AT+ACLIM**
949
950
951 * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 01 )**
952
953 (% style="color:blue" %)**0x AA 01 aa bb cc dd ee ff gg hh        ** (%%) ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
954
955
956
957 ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
958
959
960 Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
961
962 * (% style="color:#037691" %)**AT Command**
963
964 (% style="color:blue" %)**AT+AVLIM    **(%%)** See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
965
966
967 * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 00 )**
968
969 (% style="color:blue" %)**0x AA 00 aa bb cc dd ee ff gg hh    ** (%%) ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
970
971
972
973 ==== 3.4.2.11 Trigger – Set minimum interval ====
974
975
976 Set AV and AC trigger minimum interval, system won't response to the second trigger within this set time after the first trigger.
977
978 * (% style="color:#037691" %)**AT Command**
979
980 (% style="color:blue" %)**AT+ATDC=5        ** (%%)Device won't response the second trigger within 5 minute after the first trigger.
981
982
983 * (% style="color:#037691" %)**Downlink Payload (prefix 0xAC )**
984
985 (% style="color:blue" %)**0x AC aa bb   **(%%) ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
986
987 (((
988
989
990 (% style="color:red" %)**Note: ATDC setting must be more than 5min**
991 )))
992
993
994
995 ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
996
997
998 * (% style="color:#037691" %)**AT Command**
999
1000 There is no AT Command to control Digital Output
1001
1002
1003 * (% style="color:#037691" %)**Downlink Payload (prefix 0x02)**
1004 * (% style="color:blue" %)**0x02 aa bb cc     ** (%%)~/~/ Set DO1/DO2/DO3 output
1005
1006 (((
1007 If payload = 0x02010001, while there is load between V+ and DOx, it means set DO1 to low, DO2 to high and DO3 to low.
1008 )))
1009
1010 (((
1011 01: Low,  00: High ,  11: No action
1012 )))
1013
1014 [[image:image-20220524092754-5.png]]
1015
1016 (((
1017 (% style="color:red" %)**Note: For LT-22222-L, there is no DO3, the last byte can use any value.**
1018 )))
1019
1020 (((
1021 (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1022 )))
1023
1024
1025
1026 ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
1027
1028
1029 * (% style="color:#037691" %)**AT Command**
1030
1031 There is no AT Command to control Digital Output
1032
1033
1034 * (% style="color:#037691" %)**Downlink Payload (prefix 0xA9)**
1035
1036 (% style="color:blue" %)**0xA9 aa bb cc     **(%%) ~/~/ Set DO1/DO2/DO3 output with time control
1037
1038
1039 This is to control the digital output time of DO pin. Include four bytes:
1040
1041 (% style="color:#4f81bd" %)**First Byte**(%%)**:** Type code (0xA9)
1042
1043 (% style="color:#4f81bd" %)**Second Byte**(%%): Inverter Mode
1044
1045 01: DO pins will change back to original state after timeout.
1046
1047 00: DO pins will change to an inverter state after timeout 
1048
1049
1050 (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1051
1052 [[image:image-20220524093238-6.png]]
1053
1054
1055 (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1056
1057 [[image:image-20220524093328-7.png]]
1058
1059
1060 (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1061
1062 [[image:image-20220524093351-8.png]]
1063
1064
1065 (% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:
1066
1067 Latching time. Unit: ms
1068
1069 Note:
1070
1071 Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
1072
1073 Before Firmwre v1.6.0 the latch time only suport 2 bytes.
1074
1075
1076 (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1077
1078
1079 **Example payload:**
1080
1081 **~1. A9 01 01 01 01 07 D0**
1082
1083 DO1 pin & DO2 pin & DO3 pin will be set to Low, last 2 seconds, then change back to original state.
1084
1085 **2. A9 01 00 01 11 07 D0**
1086
1087 DO1 pin set high, DO2 pin set low, DO3 pin no action, last 2 seconds, then change back to original state.
1088
1089 **3. A9 00 00 00 00 07 D0**
1090
1091 DO1 pin & DO2 pin & DO3 pin will be set to high, last 2 seconds, then both change to low.
1092
1093 **4. A9 00 11 01 00 07 D0**
1094
1095 DO1 pin no action, DO2 pin set low, DO3 pin set high, last 2 seconds, then DO1 pin no action, DO2 pin set high, DO3 pin set low
1096
1097
1098
1099 ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1100
1101
1102 * (% style="color:#037691" %)**AT Command:**
1103
1104 There is no AT Command to control Relay Output
1105
1106
1107 * (% style="color:#037691" %)**Downlink Payload (prefix 0x03):**
1108
1109 (% style="color:blue" %)**0x03 aa bb     ** (%%)~/~/ Set RO1/RO2 output
1110
1111
1112 (((
1113 If payload = 0x030100, it means set RO1 to close and RO2 to open.
1114 )))
1115
1116 (((
1117 01: Close ,  00: Open , 11: No action
1118 )))
1119
1120 (((
1121 [[image:image-20220524093724-9.png]]
1122 )))
1123
1124 (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1125
1126
1127
1128 ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1129
1130
1131 * (% style="color:#037691" %)**AT Command:**
1132
1133 There is no AT Command to control Relay Output
1134
1135
1136 * (% style="color:#037691" %)**Downlink Payload (prefix 0x05):**
1137
1138 (% style="color:blue" %)**0x05 aa bb cc dd     ** (%%)~/~/ Set RO1/RO2 relay with time control
1139
1140
1141 This is to control the relay output time of relay. Include four bytes:
1142
1143 (% style="color:#4f81bd" %)**First Byte **(%%)**:** Type code (0x05)
1144
1145 (% style="color:#4f81bd" %)**Second Byte(aa)**(%%): Inverter Mode
1146
1147 01: Relays will change back to original state after timeout.
1148
1149 00: Relays will change to an inverter state after timeout
1150
1151
1152 (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1153
1154 [[image:image-20221008095908-1.png||height="364" width="564"]]
1155
1156
1157 (% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
1158
1159 Note:
1160
1161 Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
1162
1163 Before Firmwre v1.6.0 the latch time only suport 2 bytes.
1164
1165
1166 (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1167
1168
1169 **Example payload:**
1170
1171 **~1. 05 01 11 07 D**
1172
1173 Relay1 and Relay 2 will be set to NC , last 2 seconds, then change back to original state.
1174
1175 **2. 05 01 10 07 D0**
1176
1177 Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then both change back to original state.
1178
1179 **3. 05 00 01 07 D0**
1180
1181 Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then relay change to NC,Relay2 change to NO.
1182
1183 **4. 05 00 00 07 D0**
1184
1185 Relay 1 & relay2 will change to NO, last 2 seconds, then both change to NC.
1186
1187
1188
1189 ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1190
1191
1192 When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1193
1194 * (% style="color:#037691" %)**AT Command:**
1195
1196 (% style="color:blue" %)**AT+VOLMAX   ** (%%)~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1197
1198
1199 * (% style="color:#037691" %)**Downlink Payload (prefix 0xA5):**
1200
1201 (% style="color:blue" %)**0xA5 aa bb cc   ** (%%)~/~/ Same as AT+VOLMAX=(aa bb),cc
1202
1203
1204
1205 ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1206
1207
1208 * (% style="color:#037691" %)**AT Command:**
1209
1210 (% style="color:blue" %)**AT+SETCNT=aa,(bb cc dd ee) **
1211
1212 (% style="color:red" %)**aa:**(%%) 1: Set count1; 2: Set count2; 3: Set AV1 count
1213
1214 (% style="color:red" %)**bb cc dd ee: **(%%)number to be set
1215
1216
1217 * (% style="color:#037691" %)**Downlink Payload (prefix 0xA8):**
1218
1219 (% style="color:blue" %)**0x A8 aa bb cc dd ee     ** (%%)~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
1220
1221
1222
1223 ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1224
1225
1226 Clear counting for counting mode
1227
1228 * (% style="color:#037691" %)**AT Command:**
1229
1230 (% style="color:blue" %)**AT+CLRCOUNT **(%%) ~/~/ clear all counting
1231
1232
1233 * (% style="color:#037691" %)**Downlink Payload (prefix 0xA6):**
1234
1235 (% style="color:blue" %)**0x A6 01    ** (%%)~/~/ clear all counting
1236
1237
1238
1239 ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1240
1241
1242 * (% style="color:#037691" %)**AT Command:**
1243
1244 (% style="color:blue" %)**AT+COUTIME=60  **(%%)~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
1245
1246
1247 * (% style="color:#037691" %)**Downlink Payload (prefix 0xA7):**
1248
1249 (% style="color:blue" %)**0x A7 aa bb cc     ** (%%)~/~/ same as AT+COUTIME =aa bb cc,
1250
1251 (((
1252 range: aa bb cc:0 to 16777215,  (unit:second)
1253 )))
1254
1255
1256
1257 ==== 3.4.2.20 Reset save RO DO state ====
1258
1259
1260 * (% style="color:#037691" %)**AT Command:**
1261
1262 (% style="color:blue" %)**AT+RODORESET=1    **(%%)~/~/ RODO will close when the device joining the network. (default)
1263
1264 (% style="color:blue" %)**AT+RODORESET=0    **(%%)~/~/ After the device is reset, the previously saved RODO state (only MOD2 to MOD5) is read, and its state is not changed when it is reconnected to the network.
1265
1266
1267 * (% style="color:#037691" %)**Downlink Payload (prefix 0xAD):**
1268
1269 (% style="color:blue" %)**0x AD aa      ** (%%)~/~/ same as AT+RODORET =aa
1270
1271
1272
1273 ==== 3.4.2.21 Encrypted payload ====
1274
1275
1276 * (% style="color:#037691" %)**AT Command:**
1277
1278 (% style="color:blue" %)**AT+DECRYPT=1  ** (%%)~/~/ The payload is uploaded without encryption
1279
1280 (% style="color:blue" %)**AT+DECRYPT=0    **(%%)~/~/  Encrypt when uploading payload (default)
1281
1282
1283
1284 ==== 3.4.2.22 Get sensor value ====
1285
1286
1287 * (% style="color:#037691" %)**AT Command:**
1288
1289 (% style="color:blue" %)**AT+GETSENSORVALUE=0    **(%%)~/~/ The serial port gets the reading of the current sensor
1290
1291 (% style="color:blue" %)**AT+GETSENSORVALUE=1    **(%%)~/~/ The serial port gets the current sensor reading and uploads it.
1292
1293
1294
1295 ==== 3.4.2.23 Resets the downlink packet count ====
1296
1297
1298 * (% style="color:#037691" %)**AT Command:**
1299
1300 (% style="color:blue" %)**AT+DISFCNTCHECK=0   **(%%)~/~/ When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
1301
1302 (% style="color:blue" %)**AT+DISFCNTCHECK=1   **(%%)~/~/ When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
1303
1304
1305
1306 ==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1307
1308
1309 * (% style="color:#037691" %)**AT Command:**
1310
1311 (% style="color:blue" %)**AT+DISMACANS=0**   (%%) ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
1312
1313 (% style="color:blue" %)**AT+DISMACANS=1**  (%%) ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
1314
1315
1316 * (% style="color:#037691" %)**Downlink Payload **(%%)**:**
1317
1318 (% style="color:blue" %)**0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
1319
1320
1321
1322 ==== 3.4.2.25 Copy downlink to uplink ====
1323
1324
1325 * (% style="color:#037691" %)**AT Command**(%%)**:**
1326
1327 (% style="color:blue" %)**AT+RPL=5**   (%%) ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
1328
1329 Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
1330
1331
1332 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
1333
1334 For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1335
1336
1337
1338 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
1339
1340 For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1341
1342
1343
1344 ==== 3.4.2.26 Query version number and frequency band 、TDC ====
1345
1346
1347 * (((
1348 (% style="color:#037691" %)**Downlink Payload**(%%)**:**
1349
1350 (% style="color:blue" %)**26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1351
1352
1353 )))
1354
1355 **Example：**
1356
1357 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
1358
1359
1360 == 3.5 Integrate with Mydevice ==
1361
1362
1363 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:
1364
1365 (((
1366 (% style="color:blue" %)**Step 1**(%%): Be sure that your device is programmed and properly connected to the network at this time.
1367 )))
1368
1369 (((
1370 (% style="color:blue" %)**Step 2**(%%): To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1371
1372
1373 )))
1374
1375 [[image:image-20220719105525-1.png||height="377" width="677"]]
1376
1377
1378
1379 [[image:image-20220719110247-2.png||height="388" width="683"]]
1380
1381
1382 (% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
1383
1384 (% style="color:blue" %)**Step 4**(%%): Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1385
1386 Search under The things network
1387
1388 [[image:1653356838789-523.png||height="337" width="740"]]
1389
1390
1391
1392 After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1393
1394 [[image:image-20220524094909-1.png||height="335" width="729"]]
1395
1396
1397 [[image:image-20220524094909-2.png||height="337" width="729"]]
1398
1399
1400 [[image:image-20220524094909-3.png||height="338" width="727"]]
1401
1402
1403 [[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1404
1405
1406 [[image:image-20220524094909-5.png||height="341" width="734"]]
1407
1408
1409 == 3.6 Interface Detail ==
1410
1411 === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1412
1413
1414 Support NPN Type sensor
1415
1416 [[image:1653356991268-289.png]]
1417
1418
1419 === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1420
1421
1422 (((
1423 The DI port of LT-22222-L can support NPN or PNP output sensor.
1424 )))
1425
1426 (((
1427 (((
1428 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.
1429
1430
1431 )))
1432 )))
1433
1434 [[image:1653357170703-587.png]]
1435
1436 (((
1437 (((
1438 When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1439 )))
1440 )))
1441
1442 (((
1443
1444 )))
1445
1446 (((
1447 (% style="color:blue" %)**Example1**(%%): Connect to a Low active sensor.
1448 )))
1449
1450 (((
1451 This type of sensor will output a low signal GND when active.
1452 )))
1453
1454 * (((
1455 Connect sensor's output to DI1-
1456 )))
1457 * (((
1458 Connect sensor's VCC to DI1+.
1459 )))
1460
1461 (((
1462 So when sensor active, the current between NEC2501 pin1 and pin2 is：
1463 )))
1464
1465 (((
1466 [[image:1653968155772-850.png||height="23" width="19"]]**= DI1**+** / 1K.**
1467 )))
1468
1469 (((
1470 If** DI1+ **= **12v**, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1471 )))
1472
1473 (((
1474
1475 )))
1476
1477 (((
1478 (% style="color:blue" %)**Example2**(%%): Connect to a High active sensor.
1479 )))
1480
1481 (((
1482 This type of sensor will output a high signal (example 24v) when active.
1483 )))
1484
1485 * (((
1486 Connect sensor's output to DI1+
1487 )))
1488 * (((
1489 Connect sensor's GND DI1-.
1490 )))
1491
1492 (((
1493 So when sensor active, the current between NEC2501 pin1 and pin2 is:
1494 )))
1495
1496 (((
1497 [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1498 )))
1499
1500 (((
1501 If **DI1+ = 24v**, the[[image:1653968155772-850.png||height="23" width="19"]] 24mA , So the LT-22222-L will be able to detect this high active signal.
1502 )))
1503
1504 (((
1505
1506 )))
1507
1508 (((
1509 (% style="color:blue" %)**Example3**(%%): Connect to a 220v high active sensor.
1510 )))
1511
1512 (((
1513 Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1514 )))
1515
1516 * (((
1517 Connect sensor's output to DI1+ with a serial 50K resistor
1518 )))
1519 * (((
1520 Connect sensor's GND DI1-.
1521 )))
1522
1523 (((
1524 So when sensor active, the current between NEC2501 pin1 and pin2 is:
1525 )))
1526
1527 (((
1528 [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1529 )))
1530
1531 (((
1532 If sensor output is 220v, the [[image:1653968155772-850.png||height="23" width="19"]](% 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.
1533 )))
1534
1535
1536 === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1537
1538
1539 **NPN output**: GND or Float. Max voltage can apply to output pin is 36v.
1540
1541 Note: DO pins go to float when device is power off.
1542
1543 [[image:1653357531600-905.png]]
1544
1545
1546 === 3.6.4 Analog Input Interface ===
1547
1548
1549 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:
1550
1551
1552 (% style="color:blue" %)**AC2 = (IN2 voltage )/12**
1553
1554 [[image:1653357592296-182.png]]
1555
1556 Example to connect a 4~~20mA sensor
1557
1558 We take the wind speed sensor as an example for reference only.
1559
1560
1561 (% style="color:blue" %)**Specifications of the wind speed sensor:**
1562
1563 **Red:  12~~24v**
1564
1565 **Yellow:  4~~20mA**
1566
1567 **Black:  GND**
1568
1569
1570 **Connection diagram:**
1571
1572 [[image:1653357640609-758.png]]
1573
1574 [[image:1653357648330-671.png||height="155" width="733"]]
1575
1576
1577 === 3.6.5 Relay Output ===
1578
1579
1580 (((
1581 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:
1582
1583 **Note**: RO pins go to Open(NO) when device is power off.
1584 )))
1585
1586 [[image:image-20220524100215-9.png]]
1587
1588
1589 [[image:image-20220524100215-10.png||height="382" width="723"]]
1590
1591
1592 == 3.7 LEDs Indicators ==
1593
1594
1595 [[image:image-20220524100748-11.png]]
1596
1597
1598 = 4. Use AT Command =
1599
1600 == 4.1 Access AT Command ==
1601
1602
1603 (((
1604 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.
1605 )))
1606
1607 (((
1608
1609 )))
1610
1611 [[image:1653358238933-385.png]]
1612
1613
1614 (((
1615 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:
1616 )))
1617
1618 [[image:1653358355238-883.png]]
1619
1620
1621 (((
1622 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/]]
1623 )))
1624
1625 (((
1626 AT+<CMD>?        : Help on <CMD>
1627 )))
1628
1629 (((
1630 AT+<CMD>         : Run <CMD>
1631 )))
1632
1633 (((
1634 AT+<CMD>=<value> : Set the value
1635 )))
1636
1637 (((
1638 AT+<CMD>=?       :  Get the value
1639 )))
1640
1641 (((
1642 ATZ: Trig a reset of the MCU
1643 )))
1644
1645 (((
1646 AT+FDR: Reset Parameters to Factory Default, Keys Reserve 
1647 )))
1648
1649 (((
1650 AT+DEUI: Get or Set the Device EUI
1651 )))
1652
1653 (((
1654 AT+DADDR: Get or Set the Device Address
1655 )))
1656
1657 (((
1658 AT+APPKEY: Get or Set the Application Key
1659 )))
1660
1661 (((
1662 AT+NWKSKEY: Get or Set the Network Session Key
1663 )))
1664
1665 (((
1666 AT+APPSKEY:  Get or Set the Application Session Key
1667 )))
1668
1669 (((
1670 AT+APPEUI:  Get or Set the Application EUI
1671 )))
1672
1673 (((
1674 AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1675 )))
1676
1677 (((
1678 AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1679 )))
1680
1681 (((
1682 AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1683 )))
1684
1685 (((
1686 AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1687 )))
1688
1689 (((
1690 AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1691 )))
1692
1693 (((
1694 AT+RX2FQ: Get or Set the Rx2 window frequency
1695 )))
1696
1697 (((
1698 AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1699 )))
1700
1701 (((
1702 AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1703 )))
1704
1705 (((
1706 AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1707 )))
1708
1709 (((
1710 AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1711 )))
1712
1713 (((
1714 AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1715 )))
1716
1717 (((
1718 AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1719 )))
1720
1721 (((
1722 AT+NWKID: Get or Set the Network ID
1723 )))
1724
1725 (((
1726 AT+FCU: Get or Set the Frame Counter Uplink
1727 )))
1728
1729 (((
1730 AT+FCD: Get or Set the Frame Counter Downlink
1731 )))
1732
1733 (((
1734 AT+CLASS: Get or Set the Device Class
1735 )))
1736
1737 (((
1738 AT+JOIN: Join network
1739 )))
1740
1741 (((
1742 AT+NJS: Get OTAA Join Status
1743 )))
1744
1745 (((
1746 AT+SENDB: Send hexadecimal data along with the application port
1747 )))
1748
1749 (((
1750 AT+SEND: Send text data along with the application port
1751 )))
1752
1753 (((
1754 AT+RECVB: Print last received data in binary format (with hexadecimal values)
1755 )))
1756
1757 (((
1758 AT+RECV: Print last received data in raw format
1759 )))
1760
1761 (((
1762 AT+VER:  Get current image version and Frequency Band
1763 )))
1764
1765 (((
1766 AT+CFM: Get or Set the confirmation mode (0-1)
1767 )))
1768
1769 (((
1770 AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1771 )))
1772
1773 (((
1774 AT+SNR: Get the SNR of the last received packet
1775 )))
1776
1777 (((
1778 AT+RSSI: Get the RSSI of the last received packet
1779 )))
1780
1781 (((
1782 AT+TDC: Get or set the application data transmission interval in ms
1783 )))
1784
1785 (((
1786 AT+PORT: Get or set the application port
1787 )))
1788
1789 (((
1790 AT+DISAT: Disable AT commands
1791 )))
1792
1793 (((
1794 AT+PWORD: Set password, max 9 digits
1795 )))
1796
1797 (((
1798 AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1799 )))
1800
1801 (((
1802 AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1803 )))
1804
1805 (((
1806 AT+CFG: Print all settings
1807 )))
1808
1809
1810 == 4.2 Common AT Command Sequence ==
1811
1812 === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1813
1814 (((
1815
1816
1817 (((
1818 (% style="color:blue" %)**If device has not joined network yet:**
1819 )))
1820 )))
1821
1822 (((
1823 (% style="background-color:#dcdcdc" %)**123456**
1824 )))
1825
1826 (((
1827 (% style="background-color:#dcdcdc" %)**AT+FDR**
1828 )))
1829
1830 (((
1831 (% style="background-color:#dcdcdc" %)**123456**
1832 )))
1833
1834 (((
1835 (% style="background-color:#dcdcdc" %)**AT+NJM=0**
1836 )))
1837
1838 (((
1839 (% style="background-color:#dcdcdc" %)**ATZ**
1840 )))
1841
1842
1843 (((
1844 (% style="color:blue" %)**If device already joined network:**
1845 )))
1846
1847 (((
1848 (% style="background-color:#dcdcdc" %)**AT+NJM=0**
1849 )))
1850
1851 (((
1852 (% style="background-color:#dcdcdc" %)**ATZ**
1853 )))
1854
1855
1856 === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1857
1858 (((
1859
1860
1861 (((
1862 (% style="background-color:#dcdcdc" %)**123456**(%%)  ~/~/ Enter Password to have AT access.
1863 )))
1864 )))
1865
1866 (((
1867 (% style="background-color:#dcdcdc" %)** AT+FDR**(%%)  ~/~/ Reset Parameters to Factory Default, Keys Reserve
1868 )))
1869
1870 (((
1871 (% style="background-color:#dcdcdc" %)** 123456**(%%)  ~/~/ Enter Password to have AT access.
1872 )))
1873
1874 (((
1875 (% style="background-color:#dcdcdc" %)** AT+CLASS=C**(%%)  ~/~/ Set to work in CLASS C
1876 )))
1877
1878 (((
1879 (% style="background-color:#dcdcdc" %)** AT+NJM=0**(%%)  ~/~/ Set to ABP mode
1880 )))
1881
1882 (((
1883 (% style="background-color:#dcdcdc" %) **AT+ADR=0**(%%)  ~/~/ Set the Adaptive Data Rate Off
1884 )))
1885
1886 (((
1887 (% style="background-color:#dcdcdc" %)** AT+DR=5**(%%)  ~/~/ Set Data Rate
1888 )))
1889
1890 (((
1891 (% style="background-color:#dcdcdc" %)** AT+TDC=60000**(%%)  ~/~/ Set transmit interval to 60 seconds
1892 )))
1893
1894 (((
1895 (% style="background-color:#dcdcdc" %)** AT+CHS=868400000**(%%)  ~/~/ Set transmit frequency to 868.4Mhz
1896 )))
1897
1898 (((
1899 (% style="background-color:#dcdcdc" %)** AT+RX2FQ=868400000**(%%)  ~/~/ Set RX2Frequency to 868.4Mhz (according to the result from server)
1900 )))
1901
1902 (((
1903 (% style="background-color:#dcdcdc" %)** AT+RX2DR=5**(%%)** ** ~/~/ Set RX2DR to match the downlink DR from server. see below
1904 )))
1905
1906 (((
1907 (% 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.
1908 )))
1909
1910 (((
1911 (% style="background-color:#dcdcdc" %)** ATZ**         (%%) ~/~/ Reset MCU
1912
1913
1914 )))
1915
1916 (((
1917 (% style="color:red" %)**Note:**
1918 )))
1919
1920 (((
1921 **~1. Make sure the device is set to ABP mode in the IoT Server.**
1922
1923 **2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.**
1924
1925 **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?
1926 dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1927
1928 **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**
1929
1930
1931 )))
1932
1933 (((
1934 [[image:1653359097980-169.png||height="188" width="729"]]
1935 )))
1936
1937 (((
1938
1939 )))
1940
1941 === 4.2.3 Change to Class A ===
1942
1943
1944 (((
1945 (% style="color:blue" %)**If sensor JOINED:**
1946
1947 (% style="background-color:#dcdcdc" %)**AT+CLASS=A
1948 ATZ**
1949 )))
1950
1951
1952 = 5. FAQ =
1953
1954 == 5.1 How to upgrade the image? ==
1955
1956
1957 The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1958
1959 * Support new features
1960 * For bug fix
1961 * Change LoRaWAN bands.
1962
1963 Below shows the hardware connection for how to upload an image to the LT:
1964
1965 [[image:1653359603330-121.png]]
1966
1967
1968 (((
1969 (% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1970 (% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AADKXQ2v5ZT-S3sxdmbvE7UAa/LT-22222-L/image?dl=0&subfolder_nav_tracking=1]].
1971 (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
1972
1973
1974 (((
1975 (% style="color:blue" %)**For LT-22222-L**(%%):
1976 Hold down the PRO button and then momentarily press the RST reset button and the (% style="color:red" %)**DO1 led**(%%) will change from OFF to ON. When (% style="color:red" %)**DO1 LED**(%%) is on, it means the device is in download mode.
1977 )))
1978
1979
1980 )))
1981
1982 [[image:image-20220524103407-12.png]]
1983
1984 [[image:image-20220524103429-13.png]]
1985
1986 [[image:image-20220524104033-15.png]]
1987
1988
1989 (% 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:
1990
1991
1992 [[image:1653360054704-518.png||height="186" width="745"]]
1993
1994
1995 (((
1996 (((
1997 == 5.2 How to change the LoRa Frequency Bands/Region? ==
1998
1999
2000 )))
2001 )))
2002
2003 (((
2004 User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
2005 )))
2006
2007 (((
2008
2009
2010 == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
2011
2012
2013 )))
2014
2015 (((
2016 (((
2017 In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
2018 )))
2019 )))
2020
2021 (((
2022 (((
2023 Assume we have a LG02 working in the frequency 868400000 now , below is the step.
2024
2025
2026 )))
2027 )))
2028
2029 (((
2030 (% style="color:blue" %)**Step1**(%%):  Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
2031
2032
2033 )))
2034
2035 (((
2036 [[image:1653360231087-571.png||height="401" width="727"]]
2037
2038
2039 )))
2040
2041 (((
2042 (% 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.**
2043 )))
2044
2045
2046
2047 (((
2048 (% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2049
2050
2051 )))
2052
2053 (((
2054 (% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2055 (% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2056 (% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2057 (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2058 (% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2059 (% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2060 (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2061 (% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2062 (% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
2063 )))
2064
2065
2066 (((
2067 As shown in below:
2068 )))
2069
2070 [[image:1653360498588-932.png||height="485" width="726"]]
2071
2072
2073 == 5.4 Can I see counting event in Serial? ==
2074
2075
2076 (((
2077 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.
2078
2079
2080 == 5.5 Can i use point to point communication for LT-22222-L? ==
2081
2082
2083 Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]  ，this is [[firmware>>https://github.com/dragino/LT-22222-L/releases]].
2084
2085
2086 )))
2087
2088 (((
2089 == 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
2090
2091
2092 If the device is not shut down, but directly powered off.
2093
2094 It will default that this is a power-off state.
2095
2096 In modes 2 to 5, DO RO status and pulse count are saved in flash.
2097
2098 After restart, the status before power failure will be read from flash.
2099
2100
2101 == 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2102
2103
2104 LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
2105
2106
2107 [[image:image-20221006170630-1.png||height="610" width="945"]]
2108
2109
2110 == 5.8 Can LT22222-L save RO state? ==
2111
2112
2113 Firmware version needs to be no less than 1.6.0.
2114
2115
2116 = 6. Trouble Shooting =
2117 )))
2118
2119 (((
2120 (((
2121 == 6.1 Downlink doesn't work, how to solve it? ==
2122
2123
2124 )))
2125 )))
2126
2127 (((
2128 Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
2129 )))
2130
2131 (((
2132
2133
2134 == 6.2 Have trouble to upload image. ==
2135
2136
2137 )))
2138
2139 (((
2140 See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
2141 )))
2142
2143 (((
2144
2145
2146 == 6.3 Why I can't join TTN in US915 /AU915 bands? ==
2147
2148
2149 )))
2150
2151 (((
2152 It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
2153 )))
2154
2155
2156 = 7. Order Info =
2157
2158
2159 (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
2160
2161 (% style="color:#4f81bd" %)**XXX:**
2162
2163 * (% style="color:red" %)**EU433**(%%):  LT with frequency bands EU433
2164 * (% style="color:red" %)**EU868**(%%):  LT with frequency bands EU868
2165 * (% style="color:red" %)**KR920**(%%):  LT with frequency bands KR920
2166 * (% style="color:red" %)**CN470**(%%):  LT with frequency bands CN470
2167 * (% style="color:red" %)**AS923**(%%):  LT with frequency bands AS923
2168 * (% style="color:red" %)**AU915**(%%):  LT with frequency bands AU915
2169 * (% style="color:red" %)**US915**(%%):  LT with frequency bands US915
2170 * (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2171 * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2172
2173
2174
2175 = 8. Packing Info =
2176
2177
2178 **Package Includes**:
2179
2180 * LT-22222-L I/O Controller x 1
2181 * Stick Antenna for LoRa RF part x 1
2182 * Bracket for controller x1
2183 * Program cable x 1
2184
2185 **Dimension and weight**:
2186
2187 * Device Size: 13.5 x 7 x 3 cm
2188 * Device Weight: 105g
2189 * Package Size / pcs : 14.5 x 8 x 5 cm
2190 * Weight / pcs : 170g
2191
2192
2193
2194 = 9. Support =
2195
2196
2197 * (((
2198 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.
2199 )))
2200 * (((
2201 Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2202
2203
2204
2205 )))
2206
2207 = 10. Reference​​​​​ =
2208
2209
2210 * 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]]
2211 * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2212 * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2213
2214
2215

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