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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 75.7
edited by Xiaoling
on 2022/06/01 17:27
Change comment: There is no comment for this version
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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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
... ... @@ -178,6 +178,8 @@
178 178  * Smart Cities
179 179  * Smart Factory
180 180  
190 +
191 +
181 181  == 1.5 Hardware Variants ==
182 182  
183 183  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -191,6 +191,8 @@
191 191  * 1 x Counting Port
192 192  )))
193 193  
205 +
206 +
194 194  = 2. Power ON Device =
195 195  
196 196  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.
... ... @@ -202,6 +202,7 @@
202 202  [[image:1653297104069-180.png]]
203 203  
204 204  
218 +
205 205  = 3. Operation Mode =
206 206  
207 207  == 3.1 How it works? ==
... ... @@ -216,6 +216,8 @@
216 216  
217 217  )))
218 218  
233 +
234 +
219 219  == 3.2 Example to join LoRaWAN network ==
220 220  
221 221  (((
... ... @@ -257,6 +257,7 @@
257 257  [[image:1653298044601-602.png||height="405" width="709"]]
258 258  
259 259  
276 +
260 260  == 3.3 Uplink Payload ==
261 261  
262 262  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -268,6 +268,8 @@
268 268  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
269 269  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
270 270  
288 +
289 +
271 271  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
272 272  
273 273  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -303,6 +303,7 @@
303 303  * [1] RO1 relay channel is close and the RO1 LED is ON.
304 304  * [0] RO2 relay channel is open and RO2 LED is OFF;
305 305  
325 +
306 306  **LT22222-L:**
307 307  
308 308  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -318,6 +318,8 @@
318 318  ** DO1 is high in case there is load between DO1 and V+.
319 319  ** DO1 LED is off in both case
320 320  
341 +
342 +
321 321  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
322 322  
323 323  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
... ... @@ -411,6 +411,7 @@
411 411  )))
412 412  
413 413  
436 +
414 414  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
415 415  
416 416  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -455,6 +455,8 @@
455 455  
456 456  )))
457 457  
481 +
482 +
458 458  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
459 459  
460 460  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -536,6 +536,7 @@
536 536  )))
537 537  
538 538  
564 +
539 539  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
540 540  
541 541  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -580,6 +580,8 @@
580 580  
581 581  )))
582 582  
609 +
610 +
583 583  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
584 584  
585 585  (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
... ... @@ -606,6 +606,7 @@
606 606  
607 607  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
608 608  
637 +
609 609  (% style="color:#4f81bd" %)**Trigger base on current**:
610 610  
611 611  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -614,6 +614,7 @@
614 614  
615 615  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
616 616  
646 +
617 617  (% style="color:#4f81bd" %)**Trigger base on DI status**:
618 618  
619 619  DI status trigger Flag.
... ... @@ -701,6 +701,7 @@
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  (((
... ... @@ -709,6 +709,8 @@
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
... ... @@ -717,15 +717,18 @@
717 717  There are two kinds of Commands:
718 718  )))
719 719  
720 -* (% style="color:#4f81bd" %)**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: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
753 +* (% style="color:#4f81bd" %)**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]]
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 ====
... ... @@ -749,6 +749,7 @@
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.
... ... @@ -770,6 +770,7 @@
770 770  )))
771 771  
772 772  
810 +
773 773  ==== 3.4.2.3 Poll an uplink ====
774 774  
775 775  * AT Command:
... ... @@ -786,9 +786,10 @@
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 -Use of trigger mode, please check [[ADDMOD6>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
830 +Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
792 792  
793 793  * AT Command:
794 794  
... ... @@ -809,6 +809,7 @@
809 809  )))
810 810  
811 811  
851 +
812 812  ==== 3.4.2.5 Poll trigger settings ====
813 813  
814 814  Poll trigger settings,
... ... @@ -825,6 +825,7 @@
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,
... ... @@ -848,6 +848,7 @@
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.
... ... @@ -875,6 +875,7 @@
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.
... ... @@ -902,9 +902,10 @@
902 902  )))
903 903  
904 904  
948 +
905 905  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
906 906  
907 -Set current trigger , base on AC port. See [[trigger mode>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
951 +Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
908 908  
909 909  * AT Command:
910 910  
... ... @@ -917,19 +917,20 @@
917 917  
918 918  (% class="box infomessage" %)
919 919  (((
920 -**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
964 +**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
921 921  )))
922 922  
923 923  
968 +
924 924  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
925 925  
926 -Set current trigger , base on AV port. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
971 +Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
927 927  
928 928  * AT Command:
929 929  
930 930  (% class="box infomessage" %)
931 931  (((
932 -**AT+AVLIM. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
977 +**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
933 933  )))
934 934  
935 935  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -936,10 +936,11 @@
936 936  
937 937  (% class="box infomessage" %)
938 938  (((
939 -**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]] **
984 +**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
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.
... ... @@ -959,6 +959,7 @@
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:
... ... @@ -991,6 +991,7 @@
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:
... ... @@ -1053,6 +1053,7 @@
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:
... ... @@ -1081,6 +1081,7 @@
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:
... ... @@ -1131,15 +1131,16 @@
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 -When voltage exceed the threshold, count. Feature see [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]
1187 +When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1137 1137  
1138 1138  * AT Command:
1139 1139  
1140 1140  (% class="box infomessage" %)
1141 1141  (((
1142 -**AT+VOLMAX    ~/~/ See [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]**
1193 +**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1143 1143  )))
1144 1144  
1145 1145  * Downlink Payload (prefix 0xA5):
... ... @@ -1150,6 +1150,7 @@
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:
... ... @@ -1175,6 +1175,7 @@
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
... ... @@ -1194,6 +1194,7 @@
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:
... ... @@ -1216,6 +1216,8 @@
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:
... ... @@ -1234,6 +1234,7 @@
1234 1234  
1235 1235  [[image:image-20220524094641-12.png||height="402" width="718"]]
1236 1236  
1293 +
1237 1237  **Step 3**: Create an account or log in Mydevices.
1238 1238  
1239 1239  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1256,6 +1256,7 @@
1256 1256  [[image:image-20220524094909-5.png||height="341" width="734"]]
1257 1257  
1258 1258  
1316 +
1259 1259  == 3.6 Interface Detail ==
1260 1260  
1261 1261  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1265,6 +1265,7 @@
1265 1265  [[image:1653356991268-289.png]]
1266 1266  
1267 1267  
1326 +
1268 1268  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1269 1269  
1270 1270  (((
... ... @@ -1379,6 +1379,7 @@
1379 1379  )))
1380 1380  
1381 1381  
1441 +
1382 1382  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1383 1383  
1384 1384  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1386,6 +1386,7 @@
1386 1386  [[image:1653357531600-905.png]]
1387 1387  
1388 1388  
1449 +
1389 1389  === 3.6.4 Analog Input Interface ===
1390 1390  
1391 1391  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:
... ... @@ -1414,6 +1414,7 @@
1414 1414  [[image:1653357648330-671.png||height="155" width="733"]]
1415 1415  
1416 1416  
1478 +
1417 1417  === 3.6.5 Relay Output ===
1418 1418  
1419 1419  (((
... ... @@ -1857,6 +1857,11 @@
1857 1857  (((
1858 1858  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.
1859 1859  
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 +
1860 1860  
1861 1861  )))
1862 1862