Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 75.18 >
edited by Xiaoling
on 2022/06/01 17:48
To version < 77.31 >
edited by Xiaoling
on 2022/06/10 08:43
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Summary

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Content
... ... @@ -11,6 +11,9 @@
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  )))
... ... @@ -157,6 +157,8 @@
157 157  
158 158  )))
159 159  
167 +
168 +
160 160  == 1.3 Features ==
161 161  
162 162  * LoRaWAN Class A & Class C protocol
... ... @@ -168,6 +168,7 @@
168 168  * Counting
169 169  
170 170  
180 +
171 171  == 1.4  Applications ==
172 172  
173 173  * Smart Buildings & Home Automation
... ... @@ -178,6 +178,7 @@
178 178  * Smart Factory
179 179  
180 180  
191 +
181 181  == 1.5 Hardware Variants ==
182 182  
183 183  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -192,6 +192,7 @@
192 192  )))
193 193  
194 194  
206 +
195 195  = 2. Power ON Device =
196 196  
197 197  The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
... ... @@ -203,6 +203,7 @@
203 203  [[image:1653297104069-180.png]]
204 204  
205 205  
218 +
206 206  = 3. Operation Mode =
207 207  
208 208  == 3.1 How it works? ==
... ... @@ -217,6 +217,8 @@
217 217  
218 218  )))
219 219  
233 +
234 +
220 220  == 3.2 Example to join LoRaWAN network ==
221 221  
222 222  (((
... ... @@ -258,6 +258,7 @@
258 258  [[image:1653298044601-602.png||height="405" width="709"]]
259 259  
260 260  
276 +
261 261  == 3.3 Uplink Payload ==
262 262  
263 263  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -270,6 +270,7 @@
270 270  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
271 271  
272 272  
289 +
273 273  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
274 274  
275 275  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -305,6 +305,7 @@
305 305  * [1] RO1 relay channel is close and the RO1 LED is ON.
306 306  * [0] RO2 relay channel is open and RO2 LED is OFF;
307 307  
325 +
308 308  **LT22222-L:**
309 309  
310 310  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -321,6 +321,7 @@
321 321  ** DO1 LED is off in both case
322 322  
323 323  
342 +
324 324  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
325 325  
326 326  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
... ... @@ -414,6 +414,7 @@
414 414  )))
415 415  
416 416  
436 +
417 417  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
418 418  
419 419  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -458,6 +458,8 @@
458 458  
459 459  )))
460 460  
481 +
482 +
461 461  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
462 462  
463 463  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -539,6 +539,7 @@
539 539  )))
540 540  
541 541  
564 +
542 542  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
543 543  
544 544  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -583,6 +583,8 @@
583 583  
584 584  )))
585 585  
609 +
610 +
586 586  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
587 587  
588 588  (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
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706 706  When device got this command, it will send the MOD6 payload.
707 707  
708 708  
734 +
709 709  === 3.3.7 Payload Decoder ===
710 710  
711 711  (((
... ... @@ -714,6 +714,8 @@
714 714  
715 715  )))
716 716  
743 +
744 +
717 717  == 3.4 ​Configure LT via AT or Downlink ==
718 718  
719 719  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
... ... @@ -726,11 +726,14 @@
726 726  
727 727  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
728 728  
757 +
758 +
729 729  === 3.4.1 Common Commands ===
730 730  
731 731  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]]
732 732  
733 733  
764 +
734 734  === 3.4.2 Sensor related commands ===
735 735  
736 736  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -754,6 +754,7 @@
754 754  )))
755 755  
756 756  
788 +
757 757  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
758 758  
759 759  Set work mode.
... ... @@ -775,6 +775,7 @@
775 775  )))
776 776  
777 777  
810 +
778 778  ==== 3.4.2.3 Poll an uplink ====
779 779  
780 780  * AT Command:
... ... @@ -791,6 +791,7 @@
791 791  **Example**: 0x08FF, ask device to send an Uplink
792 792  
793 793  
827 +
794 794  ==== 3.4.2.4 Enable Trigger Mode ====
795 795  
796 796  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
... ... @@ -814,6 +814,7 @@
814 814  )))
815 815  
816 816  
851 +
817 817  ==== 3.4.2.5 Poll trigger settings ====
818 818  
819 819  Poll trigger settings,
... ... @@ -830,6 +830,7 @@
830 830  )))
831 831  
832 832  
868 +
833 833  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
834 834  
835 835  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -853,6 +853,7 @@
853 853  )))
854 854  
855 855  
892 +
856 856  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
857 857  
858 858  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -880,6 +880,7 @@
880 880  )))
881 881  
882 882  
920 +
883 883  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
884 884  
885 885  Set DI2 trigger.
... ... @@ -907,6 +907,7 @@
907 907  )))
908 908  
909 909  
948 +
910 910  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
911 911  
912 912  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
... ... @@ -926,6 +926,7 @@
926 926  )))
927 927  
928 928  
968 +
929 929  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
930 930  
931 931  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
... ... @@ -945,6 +945,7 @@
945 945  )))
946 946  
947 947  
988 +
948 948  ==== 3.4.2.11 Trigger – Set minimum interval ====
949 949  
950 950  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -964,6 +964,7 @@
964 964  )))
965 965  
966 966  
1008 +
967 967  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
968 968  
969 969  * AT Command:
... ... @@ -996,6 +996,7 @@
996 996  )))
997 997  
998 998  
1041 +
999 999  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
1000 1000  
1001 1001  * AT Command:
... ... @@ -1058,6 +1058,7 @@
1058 1058  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
1059 1059  
1060 1060  
1104 +
1061 1061  === 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
1062 1062  
1063 1063  * AT Command:
... ... @@ -1086,6 +1086,7 @@
1086 1086  Device will upload a packet if downlink code executes successfully.
1087 1087  
1088 1088  
1133 +
1089 1089  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1090 1090  
1091 1091  * AT Command:
... ... @@ -1136,6 +1136,7 @@
1136 1136  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1137 1137  
1138 1138  
1184 +
1139 1139  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1140 1140  
1141 1141  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
... ... @@ -1155,6 +1155,7 @@
1155 1155  )))
1156 1156  
1157 1157  
1204 +
1158 1158  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1159 1159  
1160 1160  * AT Command:
... ... @@ -1180,6 +1180,7 @@
1180 1180  )))
1181 1181  
1182 1182  
1230 +
1183 1183  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1184 1184  
1185 1185  Clear counting for counting mode
... ... @@ -1199,6 +1199,7 @@
1199 1199  )))
1200 1200  
1201 1201  
1250 +
1202 1202  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1203 1203  
1204 1204  * AT Command:
... ... @@ -1221,6 +1221,8 @@
1221 1221  
1222 1222  )))
1223 1223  
1273 +
1274 +
1224 1224  == 3.5 Integrate with Mydevice ==
1225 1225  
1226 1226  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:
... ... @@ -1262,6 +1262,7 @@
1262 1262  [[image:image-20220524094909-5.png||height="341" width="734"]]
1263 1263  
1264 1264  
1316 +
1265 1265  == 3.6 Interface Detail ==
1266 1266  
1267 1267  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1271,6 +1271,7 @@
1271 1271  [[image:1653356991268-289.png]]
1272 1272  
1273 1273  
1326 +
1274 1274  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1275 1275  
1276 1276  (((
... ... @@ -1385,6 +1385,7 @@
1385 1385  )))
1386 1386  
1387 1387  
1441 +
1388 1388  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1389 1389  
1390 1390  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1392,6 +1392,7 @@
1392 1392  [[image:1653357531600-905.png]]
1393 1393  
1394 1394  
1449 +
1395 1395  === 3.6.4 Analog Input Interface ===
1396 1396  
1397 1397  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:
... ... @@ -1420,6 +1420,7 @@
1420 1420  [[image:1653357648330-671.png||height="155" width="733"]]
1421 1421  
1422 1422  
1478 +
1423 1423  === 3.6.5 Relay Output ===
1424 1424  
1425 1425  (((
... ... @@ -1863,6 +1863,11 @@
1863 1863  (((
1864 1864  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.
1865 1865  
1922 +
1923 +== 5.5 Can i use point to point communication for LT-22222-L? ==
1924 +
1925 +Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1926 +
1866 1866  
1867 1867  )))
1868 1868  

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