Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 76.1 >
edited by Edwin Chen
on 2022/06/02 15:20
To version < 77.27 >
edited by Xiaoling
on 2022/06/10 08:41
>
Change comment: There is no comment for this version

Summary

Details

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Author
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1 -XWiki.Edwin
1 +XWiki.Xiaoling
Content
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11 11  
12 12  
13 13  
14 +
15 +
16 +
14 14  = 1.Introduction =
15 15  
16 16  == 1.1 What is LT Series I/O Controller ==
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48 48  == 1.2  Specifications ==
49 49  
50 50  (((
54 +
55 +
51 51  **Hardware System:**
52 52  )))
53 53  
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70 70  )))
71 71  )))
72 72  
78 +
73 73  (((
74 74  **Interface for Model: LT22222-L:**
75 75  )))
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93 93  Power Input 7~~ 24V DC. 
94 94  )))
95 95  
102 +
96 96  (((
97 97  **LoRa Spec:**
98 98  )))
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157 157  
158 158  )))
159 159  
167 +
168 +
160 160  == 1.3 Features ==
161 161  
162 162  * LoRaWAN Class A & Class C protocol
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167 167  * Firmware upgradable via program port
168 168  * Counting
169 169  
179 +
180 +
170 170  == 1.4  Applications ==
171 171  
172 172  * Smart Buildings & Home Automation
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176 176  * Smart Cities
177 177  * Smart Factory
178 178  
190 +
191 +
179 179  == 1.5 Hardware Variants ==
180 180  
181 181  (% border="1" style="background-color:#f7faff; width:500px" %)
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189 189  * 1 x Counting Port
190 190  )))
191 191  
205 +
206 +
192 192  = 2. Power ON Device =
193 193  
194 194  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.
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200 200  [[image:1653297104069-180.png]]
201 201  
202 202  
218 +
203 203  = 3. Operation Mode =
204 204  
205 205  == 3.1 How it works? ==
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214 214  
215 215  )))
216 216  
233 +
234 +
217 217  == 3.2 Example to join LoRaWAN network ==
218 218  
219 219  (((
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255 255  [[image:1653298044601-602.png||height="405" width="709"]]
256 256  
257 257  
276 +
258 258  == 3.3 Uplink Payload ==
259 259  
260 260  There are five working modes + one interrupt mode on LT for different type application:
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266 266  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
267 267  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
268 268  
288 +
289 +
269 269  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
270 270  
271 271  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
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301 301  * [1] RO1 relay channel is close and the RO1 LED is ON.
302 302  * [0] RO2 relay channel is open and RO2 LED is OFF;
303 303  
325 +
304 304  **LT22222-L:**
305 305  
306 306  * [1] DI2 channel is high input and DI2 LED is ON;
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316 316  ** DO1 is high in case there is load between DO1 and V+.
317 317  ** DO1 LED is off in both case
318 318  
341 +
342 +
319 319  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
320 320  
321 321  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
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409 409  )))
410 410  
411 411  
436 +
412 412  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
413 413  
414 414  **LT22222-L**: This mode the DI1 is used as a counting pin.
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453 453  
454 454  )))
455 455  
481 +
482 +
456 456  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
457 457  
458 458  **LT22222-L**: This mode the DI1 is used as a counting pin.
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534 534  )))
535 535  
536 536  
564 +
537 537  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
538 538  
539 539  **LT22222-L**: This mode the DI1 is used as a counting pin.
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578 578  
579 579  )))
580 580  
609 +
610 +
581 581  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
582 582  
583 583  (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
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701 701  When device got this command, it will send the MOD6 payload.
702 702  
703 703  
734 +
704 704  === 3.3.7 Payload Decoder ===
705 705  
706 706  (((
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709 709  
710 710  )))
711 711  
743 +
744 +
712 712  == 3.4 ​Configure LT via AT or Downlink ==
713 713  
714 714  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
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721 721  
722 722  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
723 723  
757 +
758 +
724 724  === 3.4.1 Common Commands ===
725 725  
726 726  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]]
727 727  
728 728  
764 +
729 729  === 3.4.2 Sensor related commands ===
730 730  
731 731  ==== 3.4.2.1 Set Transmit Interval ====
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749 749  )))
750 750  
751 751  
788 +
752 752  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
753 753  
754 754  Set work mode.
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770 770  )))
771 771  
772 772  
810 +
773 773  ==== 3.4.2.3 Poll an uplink ====
774 774  
775 775  * AT Command:
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786 786  **Example**: 0x08FF, ask device to send an Uplink
787 787  
788 788  
827 +
789 789  ==== 3.4.2.4 Enable Trigger Mode ====
790 790  
791 791  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
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809 809  )))
810 810  
811 811  
851 +
812 812  ==== 3.4.2.5 Poll trigger settings ====
813 813  
814 814  Poll trigger settings,
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825 825  )))
826 826  
827 827  
868 +
828 828  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
829 829  
830 830  Enable Disable DI1/DI2/DI2 as trigger,
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848 848  )))
849 849  
850 850  
892 +
851 851  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
852 852  
853 853  Set DI1 or DI3(for LT-33222-L) trigger.
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875 875  )))
876 876  
877 877  
920 +
878 878  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
879 879  
880 880  Set DI2 trigger.
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902 902  )))
903 903  
904 904  
948 +
905 905  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
906 906  
907 907  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
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921 921  )))
922 922  
923 923  
968 +
924 924  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
925 925  
926 926  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
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1861 1861  
1862 1862  == 5.5 Can i use point to point communication for LT-22222-L? ==
1863 1863  
1864 -Yes, please refer [[Point to Point Communication>> Point to Point Communication of LT-22222-L]]
1909 +Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1865 1865  
1866 1866  
1867 1867  )))

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