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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 69.1
edited by Xiaoling
on 2022/05/31 11:27
Change comment: There is no comment for this version
To version 77.34
edited by Xiaoling
on 2022/06/10 08:52
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -11,12 +11,15 @@
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 ==
17 17  
18 18  (((
19 -The Dragino LT series I/O Modules are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as: analog current Input, analog voltage input, relay output, digital input and digital output etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
22 +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.
20 20  )))
21 21  
22 22  (((
... ... @@ -24,7 +24,7 @@
24 24  )))
25 25  
26 26  (((
27 -The LT I/O Controllers is aiming to provide a simple plug and play, low cost installation by using LoRaWAN wireless technology.
30 +The LT I/O Controllers is aiming to provide an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
28 28  )))
29 29  
30 30  (((
... ... @@ -48,6 +48,8 @@
48 48  == 1.2  Specifications ==
49 49  
50 50  (((
54 +
55 +
51 51  **Hardware System:**
52 52  )))
53 53  
... ... @@ -157,6 +157,7 @@
157 157  
158 158  )))
159 159  
165 +
160 160  == 1.3 Features ==
161 161  
162 162  * LoRaWAN Class A & Class C protocol
... ... @@ -167,6 +167,7 @@
167 167  * Firmware upgradable via program port
168 168  * Counting
169 169  
176 +
170 170  == 1.4  Applications ==
171 171  
172 172  * Smart Buildings & Home Automation
... ... @@ -176,6 +176,7 @@
176 176  * Smart Cities
177 177  * Smart Factory
178 178  
186 +
179 179  == 1.5 Hardware Variants ==
180 180  
181 181  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -189,6 +189,7 @@
189 189  * 1 x Counting Port
190 190  )))
191 191  
200 +
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.
... ... @@ -200,6 +200,7 @@
200 200  [[image:1653297104069-180.png]]
201 201  
202 202  
212 +
203 203  = 3. Operation Mode =
204 204  
205 205  == 3.1 How it works? ==
... ... @@ -214,6 +214,8 @@
214 214  
215 215  )))
216 216  
227 +
228 +
217 217  == 3.2 Example to join LoRaWAN network ==
218 218  
219 219  (((
... ... @@ -255,6 +255,7 @@
255 255  [[image:1653298044601-602.png||height="405" width="709"]]
256 256  
257 257  
270 +
258 258  == 3.3 Uplink Payload ==
259 259  
260 260  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -266,6 +266,7 @@
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  
282 +
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.
... ... @@ -316,6 +316,7 @@
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  
333 +
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  
427 +
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.
... ... @@ -453,6 +453,8 @@
453 453  
454 454  )))
455 455  
472 +
473 +
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.
... ... @@ -534,6 +534,7 @@
534 534  )))
535 535  
536 536  
555 +
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.
... ... @@ -578,6 +578,8 @@
578 578  
579 579  )))
580 580  
600 +
601 +
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.**
... ... @@ -604,6 +604,7 @@
604 604  
605 605  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
606 606  
628 +
607 607  (% style="color:#4f81bd" %)**Trigger base on current**:
608 608  
609 609  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -612,6 +612,7 @@
612 612  
613 613  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
614 614  
637 +
615 615  (% style="color:#4f81bd" %)**Trigger base on DI status**:
616 616  
617 617  DI status trigger Flag.
... ... @@ -699,6 +699,7 @@
699 699  When device got this command, it will send the MOD6 payload.
700 700  
701 701  
725 +
702 702  === 3.3.7 Payload Decoder ===
703 703  
704 704  (((
... ... @@ -707,6 +707,8 @@
707 707  
708 708  )))
709 709  
734 +
735 +
710 710  == 3.4 ​Configure LT via AT or Downlink ==
711 711  
712 712  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
... ... @@ -715,15 +715,17 @@
715 715  There are two kinds of Commands:
716 716  )))
717 717  
718 -* (% 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
744 +* (% 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]]
719 719  
720 720  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
721 721  
748 +
722 722  === 3.4.1 Common Commands ===
723 723  
724 724  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]]
725 725  
726 726  
754 +
727 727  === 3.4.2 Sensor related commands ===
728 728  
729 729  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -747,6 +747,7 @@
747 747  )))
748 748  
749 749  
778 +
750 750  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
751 751  
752 752  Set work mode.
... ... @@ -768,6 +768,7 @@
768 768  )))
769 769  
770 770  
800 +
771 771  ==== 3.4.2.3 Poll an uplink ====
772 772  
773 773  * AT Command:
... ... @@ -784,9 +784,10 @@
784 784  **Example**: 0x08FF, ask device to send an Uplink
785 785  
786 786  
817 +
787 787  ==== 3.4.2.4 Enable Trigger Mode ====
788 788  
789 -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]]
820 +Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
790 790  
791 791  * AT Command:
792 792  
... ... @@ -807,6 +807,7 @@
807 807  )))
808 808  
809 809  
841 +
810 810  ==== 3.4.2.5 Poll trigger settings ====
811 811  
812 812  Poll trigger settings,
... ... @@ -823,6 +823,7 @@
823 823  )))
824 824  
825 825  
858 +
826 826  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
827 827  
828 828  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -846,6 +846,7 @@
846 846  )))
847 847  
848 848  
882 +
849 849  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
850 850  
851 851  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -873,6 +873,7 @@
873 873  )))
874 874  
875 875  
910 +
876 876  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
877 877  
878 878  Set DI2 trigger.
... ... @@ -900,9 +900,10 @@
900 900  )))
901 901  
902 902  
938 +
903 903  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
904 904  
905 -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]]
941 +Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
906 906  
907 907  * AT Command:
908 908  
... ... @@ -915,19 +915,20 @@
915 915  
916 916  (% class="box infomessage" %)
917 917  (((
918 -**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]]**
954 +**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
919 919  )))
920 920  
921 921  
958 +
922 922  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
923 923  
924 -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]]
961 +Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
925 925  
926 926  * AT Command:
927 927  
928 928  (% class="box infomessage" %)
929 929  (((
930 -**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]]**
967 +**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
931 931  )))
932 932  
933 933  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -934,10 +934,11 @@
934 934  
935 935  (% class="box infomessage" %)
936 936  (((
937 -**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]] **
974 +**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
938 938  )))
939 939  
940 940  
978 +
941 941  ==== 3.4.2.11 Trigger – Set minimum interval ====
942 942  
943 943  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -957,6 +957,7 @@
957 957  )))
958 958  
959 959  
998 +
960 960  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
961 961  
962 962  * AT Command:
... ... @@ -989,6 +989,7 @@
989 989  )))
990 990  
991 991  
1031 +
992 992  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
993 993  
994 994  * AT Command:
... ... @@ -1051,6 +1051,7 @@
1051 1051  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
1052 1052  
1053 1053  
1094 +
1054 1054  === 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
1055 1055  
1056 1056  * AT Command:
... ... @@ -1079,6 +1079,7 @@
1079 1079  Device will upload a packet if downlink code executes successfully.
1080 1080  
1081 1081  
1123 +
1082 1082  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1083 1083  
1084 1084  * AT Command:
... ... @@ -1129,15 +1129,16 @@
1129 1129  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1130 1130  
1131 1131  
1174 +
1132 1132  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1133 1133  
1134 -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]]
1177 +When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1135 1135  
1136 1136  * AT Command:
1137 1137  
1138 1138  (% class="box infomessage" %)
1139 1139  (((
1140 -**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]]**
1183 +**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1141 1141  )))
1142 1142  
1143 1143  * Downlink Payload (prefix 0xA5):
... ... @@ -1148,6 +1148,7 @@
1148 1148  )))
1149 1149  
1150 1150  
1194 +
1151 1151  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1152 1152  
1153 1153  * AT Command:
... ... @@ -1173,6 +1173,7 @@
1173 1173  )))
1174 1174  
1175 1175  
1220 +
1176 1176  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1177 1177  
1178 1178  Clear counting for counting mode
... ... @@ -1192,6 +1192,7 @@
1192 1192  )))
1193 1193  
1194 1194  
1240 +
1195 1195  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1196 1196  
1197 1197  * AT Command:
... ... @@ -1214,6 +1214,8 @@
1214 1214  
1215 1215  )))
1216 1216  
1263 +
1264 +
1217 1217  == 3.5 Integrate with Mydevice ==
1218 1218  
1219 1219  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:
... ... @@ -1232,6 +1232,7 @@
1232 1232  
1233 1233  [[image:image-20220524094641-12.png||height="402" width="718"]]
1234 1234  
1283 +
1235 1235  **Step 3**: Create an account or log in Mydevices.
1236 1236  
1237 1237  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1254,6 +1254,7 @@
1254 1254  [[image:image-20220524094909-5.png||height="341" width="734"]]
1255 1255  
1256 1256  
1306 +
1257 1257  == 3.6 Interface Detail ==
1258 1258  
1259 1259  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1263,6 +1263,7 @@
1263 1263  [[image:1653356991268-289.png]]
1264 1264  
1265 1265  
1316 +
1266 1266  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1267 1267  
1268 1268  (((
... ... @@ -1278,52 +1278,106 @@
1278 1278  [[image:1653357170703-587.png]]
1279 1279  
1280 1280  (((
1332 +(((
1281 1281  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1282 1282  )))
1335 +)))
1283 1283  
1337 +(((
1338 +
1339 +)))
1284 1284  
1341 +(((
1285 1285  **Example1**: Connect to a Low active sensor.
1343 +)))
1286 1286  
1345 +(((
1287 1287  This type of sensor will output a low signal GND when active.
1347 +)))
1288 1288  
1289 -* Connect sensor’s output to DI1-
1290 -* Connect sensor’s VCC to DI1+.
1349 +* (((
1350 +Connect sensor’s output to DI1-
1351 +)))
1352 +* (((
1353 +Connect sensor’s VCC to DI1+.
1354 +)))
1291 1291  
1292 -So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1356 +(((
1357 +So when sensor active, the current between NEC2501 pin1 and pin2 is：
1358 +)))
1293 1293  
1294 -[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]] = DI1+ / 1K.**
1360 +(((
1361 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1362 +)))
1295 1295  
1296 -If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1364 +(((
1365 +If DI1+ = 12v, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1366 +)))
1297 1297  
1368 +(((
1369 +
1370 +)))
1298 1298  
1372 +(((
1299 1299  **Example2**: Connect to a High active sensor.
1374 +)))
1300 1300  
1376 +(((
1301 1301  This type of sensor will output a high signal (example 24v) when active.
1378 +)))
1302 1302  
1303 -* Connect sensor’s output to DI1+
1304 -* Connect sensor’s GND DI1-.
1380 +* (((
1381 +Connect sensor’s output to DI1+
1382 +)))
1383 +* (((
1384 +Connect sensor’s GND DI1-.
1385 +)))
1305 1305  
1387 +(((
1306 1306  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1389 +)))
1307 1307  
1308 -[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1391 +(((
1392 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1393 +)))
1309 1309  
1310 -If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1395 +(((
1396 +If **DI1+ = 24v**, the[[image:1653968155772-850.png||height="23" width="19"]] 24mA , So the LT-22222-L will be able to detect this high active signal.
1397 +)))
1311 1311  
1399 +(((
1400 +
1401 +)))
1312 1312  
1403 +(((
1313 1313  **Example3**: Connect to a 220v high active sensor.
1405 +)))
1314 1314  
1407 +(((
1315 1315  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1409 +)))
1316 1316  
1317 -* Connect sensor’s output to DI1+ with a serial 50K resistor
1318 -* Connect sensor’s GND DI1-.
1411 +* (((
1412 +Connect sensor’s output to DI1+ with a serial 50K resistor
1413 +)))
1414 +* (((
1415 +Connect sensor’s GND DI1-.
1416 +)))
1319 1319  
1418 +(((
1320 1320  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1420 +)))
1321 1321  
1322 - [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1422 +(((
1423 + [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1424 +)))
1323 1323  
1324 -If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1426 +(((
1427 +If sensor output is 220v, the [[image:1653968155772-850.png||height="23" width="19"]](% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1428 +)))
1325 1325  
1326 1326  
1431 +
1327 1327  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1328 1328  
1329 1329  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1331,6 +1331,7 @@
1331 1331  [[image:1653357531600-905.png]]
1332 1332  
1333 1333  
1439 +
1334 1334  === 3.6.4 Analog Input Interface ===
1335 1335  
1336 1336  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:
... ... @@ -1359,6 +1359,7 @@
1359 1359  [[image:1653357648330-671.png||height="155" width="733"]]
1360 1360  
1361 1361  
1468 +
1362 1362  === 3.6.5 Relay Output ===
1363 1363  
1364 1364  (((
... ... @@ -1370,6 +1370,7 @@
1370 1370  [[image:image-20220524100215-10.png||height="382" width="723"]]
1371 1371  
1372 1372  
1480 +
1373 1373  == 3.7 LEDs Indicators ==
1374 1374  
1375 1375  [[image:image-20220524100748-11.png]]
... ... @@ -1579,6 +1579,8 @@
1579 1579  
1580 1580  )))
1581 1581  
1690 +
1691 +
1582 1582  == 4.2 Common AT Command Sequence ==
1583 1583  
1584 1584  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1622,6 +1622,8 @@
1622 1622  
1623 1623  )))
1624 1624  
1735 +
1736 +
1625 1625  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1626 1626  
1627 1627  (((
... ... @@ -1695,6 +1695,8 @@
1695 1695  
1696 1696  )))
1697 1697  
1810 +
1811 +
1698 1698  === 4.2.3 Change to Class A ===
1699 1699  
1700 1700  If sensor JOINED
... ... @@ -1735,6 +1735,8 @@
1735 1735  
1736 1736  (((
1737 1737  (((
1852 +
1853 +
1738 1738  == 5.2 How to change the LoRa Frequency Bands/Region? ==
1739 1739  )))
1740 1740  )))
... ... @@ -1746,6 +1746,9 @@
1746 1746  )))
1747 1747  
1748 1748  (((
1865 +
1866 +
1867 +
1749 1749  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1750 1750  )))
1751 1751  
... ... @@ -1802,10 +1802,17 @@
1802 1802  (((
1803 1803  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.
1804 1804  
1924 +
1925 +== 5.5 Can i use point to point communication for LT-22222-L? ==
1926 +
1927 +Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1928 +
1805 1805  
1806 1806  )))
1807 1807  
1808 1808  (((
1933 +
1934 +
1809 1809  = 6. Trouble Shooting =
1810 1810  )))
1811 1811  
... ... @@ -1822,6 +1822,8 @@
1822 1822  )))
1823 1823  
1824 1824  (((
1951 +
1952 +
1825 1825  == 6.2 Have trouble to upload image. ==
1826 1826  )))
1827 1827  
... ... @@ -1834,6 +1834,8 @@
1834 1834  )))
1835 1835  
1836 1836  (((
1965 +
1966 +
1837 1837  == 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1838 1838  )))
1839 1839  
... ... @@ -1841,147 +1841,61 @@
1841 1841  It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1842 1842  )))
1843 1843  
1844 -(((
1845 -
1846 -)))
1847 1847  
1848 -(((
1975 +
1849 1849  = 7. Order Info =
1850 -)))
1851 1851  
1852 -(((
1853 -(((
1978 +
1854 1854  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1855 -)))
1856 -)))
1857 1857  
1858 -(((
1859 -(((
1981 +
1860 1860  (% style="color:#4f81bd" %)**XXX:**
1861 -)))
1862 -)))
1863 1863  
1864 -(((
1865 -* (((
1866 -(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1867 -)))
1868 -)))
1984 +* (% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1985 +* (% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1986 +* (% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1987 +* (% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1988 +* (% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1989 +* (% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1990 +* (% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1991 +* (% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1992 +* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1869 1869  
1870 -(((
1871 -* (((
1872 -(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1873 -)))
1874 -)))
1875 1875  
1876 -(((
1877 -* (((
1878 -(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1879 -)))
1880 -)))
1881 1881  
1882 -(((
1883 -* (((
1884 -(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1885 -)))
1886 -)))
1887 -
1888 -(((
1889 -* (((
1890 -(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1891 -)))
1892 -)))
1893 -
1894 -(((
1895 -* (((
1896 -(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1897 -)))
1898 -)))
1899 -
1900 -(((
1901 -* (((
1902 -(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1903 -)))
1904 -)))
1905 -
1906 -(((
1907 -* (((
1908 -(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1909 -)))
1910 -)))
1911 -
1912 -(((
1913 -* (((
1914 -(% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1915 -
1916 -
1917 -)))
1918 -
1919 1919  = 8. Packing Info =
1920 -)))
1921 1921  
1922 -(((
1923 -(((
1998 +
1924 1924  **Package Includes**:
1925 -)))
1926 -)))
1927 1927  
1928 -(((
1929 -(((
1930 1930  * LT-22222-L I/O Controller x 1
1931 1931  * Stick Antenna for LoRa RF part x 1
1932 1932  * Bracket for controller x1
1933 1933  * Program cable x 1
1934 -)))
1935 -)))
1936 1936  
1937 -(((
1938 -(((
2006 +
1939 1939  **Dimension and weight**:
1940 -)))
1941 -)))
1942 1942  
1943 -(((
1944 -(((
1945 1945  * Device Size: 13.5 x 7 x 3 cm
1946 1946  * Device Weight: 105g
1947 1947  * Package Size / pcs : 14.5 x 8 x 5 cm
1948 1948  * Weight / pcs : 170g
1949 1949  
1950 -
1951 -)))
1952 -)))
1953 1953  
1954 -(((
1955 1955  = 9. Support =
1956 -)))
1957 1957  
1958 1958  * (((
1959 -(((
1960 1960  Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1961 1961  )))
1962 -)))
1963 1963  * (((
1964 -(((
1965 -Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
2021 +Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1966 1966  )))
1967 -)))
1968 1968  
1969 -(((
1970 -(((
1971 - [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1972 1972  
1973 -
1974 -)))
1975 1975  
1976 -(((
1977 1977  = 10. Reference​​​​​ =
1978 1978  
1979 -* Product Page:
1980 -
1981 -LT-22222-L: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]
1982 -
2028 +* Product Page: LT-22222-L: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]
1983 1983  * [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1984 1984  * [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1985 1985  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
1986 -)))
1987 -)))
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