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 < 77.31 >
edited by Xiaoling
on 2022/06/10 08:43
>
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 ==
... ... @@ -48,6 +48,8 @@
48 48  == 1.2  Specifications ==
49 49  
50 50  (((
54 +
55 +
51 51  **Hardware System:**
52 52  )))
53 53  
... ... @@ -70,6 +70,7 @@
70 70  )))
71 71  )))
72 72  
78 +
73 73  (((
74 74  **Interface for Model: LT22222-L:**
75 75  )))
... ... @@ -93,6 +93,7 @@
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
... ... @@ -167,6 +167,8 @@
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
... ... @@ -176,6 +176,8 @@
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.
... ... @@ -409,6 +409,7 @@
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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940 940  )))
941 941  
942 942  
988 +
943 943  ==== 3.4.2.11 Trigger – Set minimum interval ====
944 944  
945 945  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
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959 959  )))
960 960  
961 961  
1008 +
962 962  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
963 963  
964 964  * AT Command:
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991 991  )))
992 992  
993 993  
1041 +
994 994  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
995 995  
996 996  * AT Command:
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1053 1053  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
1054 1054  
1055 1055  
1104 +
1056 1056  === 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
1057 1057  
1058 1058  * AT Command:
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1081 1081  Device will upload a packet if downlink code executes successfully.
1082 1082  
1083 1083  
1133 +
1084 1084  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1085 1085  
1086 1086  * AT Command:
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1131 1131  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1132 1132  
1133 1133  
1184 +
1134 1134  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1135 1135  
1136 1136  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
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1150 1150  )))
1151 1151  
1152 1152  
1204 +
1153 1153  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1154 1154  
1155 1155  * AT Command:
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1175 1175  )))
1176 1176  
1177 1177  
1230 +
1178 1178  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1179 1179  
1180 1180  Clear counting for counting mode
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1194 1194  )))
1195 1195  
1196 1196  
1250 +
1197 1197  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1198 1198  
1199 1199  * AT Command:
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1216 1216  
1217 1217  )))
1218 1218  
1273 +
1274 +
1219 1219  == 3.5 Integrate with Mydevice ==
1220 1220  
1221 1221  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:
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1257 1257  [[image:image-20220524094909-5.png||height="341" width="734"]]
1258 1258  
1259 1259  
1316 +
1260 1260  == 3.6 Interface Detail ==
1261 1261  
1262 1262  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1266,6 +1266,7 @@
1266 1266  [[image:1653356991268-289.png]]
1267 1267  
1268 1268  
1326 +
1269 1269  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1270 1270  
1271 1271  (((
... ... @@ -1380,6 +1380,7 @@
1380 1380  )))
1381 1381  
1382 1382  
1441 +
1383 1383  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1384 1384  
1385 1385  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
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1387 1387  [[image:1653357531600-905.png]]
1388 1388  
1389 1389  
1449 +
1390 1390  === 3.6.4 Analog Input Interface ===
1391 1391  
1392 1392  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:
... ... @@ -1415,6 +1415,7 @@
1415 1415  [[image:1653357648330-671.png||height="155" width="733"]]
1416 1416  
1417 1417  
1478 +
1418 1418  === 3.6.5 Relay Output ===
1419 1419  
1420 1420  (((
... ... @@ -1861,7 +1861,7 @@
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]]
1925 +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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