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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 82.8
edited by Xiaoling
on 2022/06/20 11:18
Change comment: There is no comment for this version
To version 77.81
edited by Xiaoling
on 2022/06/10 09:25
Change comment: There is no comment for this version

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... ... @@ -19,8 +19,6 @@
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
22 -
23 -
24 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 25  )))
26 26  
... ... @@ -50,7 +50,6 @@
50 50  
51 51  )))
52 52  
53 -
54 54  == 1.2  Specifications ==
55 55  
56 56  (((
... ... @@ -79,8 +79,6 @@
79 79  )))
80 80  
81 81  (((
82 -
83 -
84 84  **Interface for Model: LT22222-L:**
85 85  )))
86 86  
... ... @@ -104,8 +104,6 @@
104 104  )))
105 105  
106 106  (((
107 -
108 -
109 109  **LoRa Spec:**
110 110  )))
111 111  
... ... @@ -166,8 +166,6 @@
166 166  * (((
167 167  Packet engine up to 256 bytes with CRC.
168 168  
169 -
170 -
171 171  
172 172  )))
173 173  
... ... @@ -181,9 +181,6 @@
181 181  * Firmware upgradable via program port
182 182  * Counting
183 183  
184 -
185 -
186 -
187 187  == 1.4  Applications ==
188 188  
189 189  * Smart Buildings & Home Automation
... ... @@ -193,9 +193,6 @@
193 193  * Smart Cities
194 194  * Smart Factory
195 195  
196 -
197 -
198 -
199 199  == 1.5 Hardware Variants ==
200 200  
201 201  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -209,8 +209,6 @@
209 209  * 1 x Counting Port
210 210  )))
211 211  
212 -
213 -
214 214  = 2. Power ON Device =
215 215  
216 216  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.
... ... @@ -233,9 +233,12 @@
233 233  
234 234  (((
235 235  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.
219 +
220 +
236 236  )))
237 237  
238 238  
224 +
239 239  == 3.2 Example to join LoRaWAN network ==
240 240  
241 241  (((
... ... @@ -244,13 +244,12 @@
244 244  
245 245  [[image:image-20220523172350-1.png||height="266" width="864"]]
246 246  
247 -
248 248  (((
249 249  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:
250 250  )))
251 251  
252 252  (((
253 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LT IO controller.
238 +**Step 1**: Create a device in TTN with the OTAA keys from LT IO controller.
254 254  )))
255 255  
256 256  (((
... ... @@ -259,7 +259,6 @@
259 259  
260 260  [[image:1653297924498-393.png]]
261 261  
262 -
263 263  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
264 264  
265 265  Add APP EUI in the application.
... ... @@ -273,7 +273,7 @@
273 273  
274 274  
275 275  (((
276 -(% 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.
260 +**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.
277 277  )))
278 278  
279 279  [[image:1653298044601-602.png||height="405" width="709"]]
... ... @@ -291,9 +291,6 @@
291 291  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
292 292  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
293 293  
294 -
295 -
296 -
297 297  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
298 298  
299 299  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -301,8 +301,6 @@
301 301  [[image:image-20220523174024-3.png]]
302 302  
303 303  (((
304 -
305 -
306 306  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
307 307  )))
308 308  
... ... @@ -316,7 +316,6 @@
316 316  
317 317  For example if payload is: [[image:image-20220523175847-2.png]]
318 318  
319 -
320 320  **The value for the interface is:  **
321 321  
322 322  AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
... ... @@ -349,7 +349,6 @@
349 349  
350 350  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
351 351  
352 -
353 353  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
354 354  
355 355  (((
... ... @@ -358,7 +358,6 @@
358 358  
359 359  [[image:image-20220523180452-3.png]]
360 360  
361 -
362 362  (((
363 363  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
364 364  )))
... ... @@ -374,8 +374,6 @@
374 374  )))
375 375  
376 376  (((
377 -
378 -
379 379  **To use counting mode, please run:**
380 380  )))
381 381  
... ... @@ -394,8 +394,6 @@
394 394  )))
395 395  
396 396  (((
397 -
398 -
399 399  (% style="color:#4f81bd" %)**AT Commands for counting:**
400 400  )))
401 401  
... ... @@ -487,6 +487,8 @@
487 487  
488 488  (((
489 489  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
462 +
463 +
490 490  )))
491 491  
492 492  
... ... @@ -493,7 +493,6 @@
493 493  
494 494  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
495 495  
496 -
497 497  **LT22222-L**: This mode the DI1 is used as a counting pin.
498 498  
499 499  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.
... ... @@ -500,7 +500,6 @@
500 500  
501 501  [[image:image-20220523181903-8.png]]
502 502  
503 -
504 504  (((
505 505  (% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
506 506  )))
... ... @@ -630,7 +630,6 @@
630 630  
631 631  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
632 632  
633 -
634 634  (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
635 635  
636 636  For example, if user has configured below commands:
... ... @@ -638,11 +638,13 @@
638 638  * **AT+MOD=1 ** **~-~->** The normal working mode
639 639  * **AT+ADDMOD6=1**   **~-~->** Enable trigger
640 640  
612 +
641 641  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
642 642  
643 643  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
644 644  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.**
645 645  
618 +
646 646  **AT Command to set Trigger Condition**:
647 647  
648 648  (% style="color:#4f81bd" %)**Trigger base on voltage**:
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656 656  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
657 657  
658 658  
659 -
660 660  (% style="color:#4f81bd" %)**Trigger base on current**:
661 661  
662 662  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -666,7 +666,6 @@
666 666  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
667 667  
668 668  
669 -
670 670  (% style="color:#4f81bd" %)**Trigger base on DI status**:
671 671  
672 672  DI status trigger Flag.
... ... @@ -673,13 +673,12 @@
673 673  
674 674  Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >
675 675  
676 -
677 677  **Example:**
678 678  
679 679  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
680 680  
681 681  
682 -**Downlink Command to set Trigger Condition:**
652 +**Downlink Command to set Trigger Condition**
683 683  
684 684  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
685 685  
... ... @@ -708,7 +708,6 @@
708 708  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
709 709  
710 710  
711 -
712 712  (% style="color:#4f81bd" %)**Trigger Settings Payload Explanation:**
713 713  
714 714  MOD6 Payload : total 11 bytes payload
... ... @@ -722,6 +722,7 @@
722 722  
723 723  * Each bits shows if the corresponding trigger has been configured.
724 724  
694 +
725 725  **Example:**
726 726  
727 727  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
... ... @@ -733,6 +733,7 @@
733 733  
734 734  * Each bits shows which status has been trigger on this uplink.
735 735  
706 +
736 736  **Example:**
737 737  
738 738  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
... ... @@ -744,6 +744,7 @@
744 744  
745 745  * Each bits shows which status has been trigger on this uplink.
746 746  
718 +
747 747  **Example:**
748 748  
749 749  00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
... ... @@ -764,8 +764,6 @@
764 764  === 3.3.7 Payload Decoder ===
765 765  
766 766  (((
767 -
768 -
769 769  **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/]]
770 770  
771 771  
... ... @@ -772,6 +772,7 @@
772 772  )))
773 773  
774 774  
745 +
775 775  == 3.4 ​Configure LT via AT or Downlink ==
776 776  
777 777  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
... ... @@ -784,6 +784,8 @@
784 784  
785 785  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
786 786  
758 +
759 +
787 787  === 3.4.1 Common Commands ===
788 788  
789 789  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]]
... ... @@ -2015,16 +2015,8 @@
2015 2015  )))
2016 2016  
2017 2017  (((
2018 -== 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
1991 +
2019 2019  
2020 -If the device is not shut down, but directly powered off.
2021 -
2022 -It will default that this is a power-off state.
2023 -
2024 -In modes 2 to 5, DO RO status and pulse count are saved in flash.
2025 -
2026 -After restart, the status before power failure will be read from flash.
2027 -
2028 2028  = 6. Trouble Shooting =
2029 2029  )))
2030 2030