Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 68.23 >
edited by Xiaoling
on 2022/05/31 11:08
To version < 77.1 >
edited by Edwin Chen
on 2022/06/02 15:25
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1 -XWiki.Xiaoling
1 +XWiki.Edwin
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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.
19 +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.
27 +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  (((
... ... @@ -189,7 +189,6 @@
189 189  * 1 x Counting Port
190 190  )))
191 191  
192 -
193 193  = 2. Power ON Device =
194 194  
195 195  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.
... ... @@ -605,6 +605,7 @@
605 605  
606 606  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
607 607  
607 +
608 608  (% style="color:#4f81bd" %)**Trigger base on current**:
609 609  
610 610  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -613,6 +613,7 @@
613 613  
614 614  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
615 615  
616 +
616 616  (% style="color:#4f81bd" %)**Trigger base on DI status**:
617 617  
618 618  DI status trigger Flag.
... ... @@ -716,7 +716,7 @@
716 716  There are two kinds of Commands:
717 717  )))
718 718  
719 -* (% 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
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: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
720 720  
721 721  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
722 722  
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787 787  
788 788  ==== 3.4.2.4 Enable Trigger Mode ====
789 789  
790 -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]]
791 +Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
791 791  
792 792  * AT Command:
793 793  
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903 903  
904 904  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
905 905  
906 -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]]
907 +Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
907 907  
908 908  * AT Command:
909 909  
... ... @@ -916,19 +916,19 @@
916 916  
917 917  (% class="box infomessage" %)
918 918  (((
919 -**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]]**
920 +**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
920 920  )))
921 921  
922 922  
923 923  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
924 924  
925 -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]]
926 +Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
926 926  
927 927  * AT Command:
928 928  
929 929  (% class="box infomessage" %)
930 930  (((
931 -**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]]**
932 +**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
932 932  )))
933 933  
934 934  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -935,7 +935,7 @@
935 935  
936 936  (% class="box infomessage" %)
937 937  (((
938 -**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]] **
939 +**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
939 939  )))
940 940  
941 941  
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1132 1132  
1133 1133  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1134 1134  
1135 -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]]
1136 +When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1136 1136  
1137 1137  * AT Command:
1138 1138  
1139 1139  (% class="box infomessage" %)
1140 1140  (((
1141 -**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]]**
1142 +**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1142 1142  )))
1143 1143  
1144 1144  * Downlink Payload (prefix 0xA5):
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1233 1233  
1234 1234  [[image:image-20220524094641-12.png||height="402" width="718"]]
1235 1235  
1237 +
1236 1236  **Step 3**: Create an account or log in Mydevices.
1237 1237  
1238 1238  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
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1279 1279  [[image:1653357170703-587.png]]
1280 1280  
1281 1281  (((
1284 +(((
1282 1282  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1283 1283  )))
1287 +)))
1284 1284  
1289 +(((
1290 +
1291 +)))
1285 1285  
1293 +(((
1286 1286  **Example1**: Connect to a Low active sensor.
1295 +)))
1287 1287  
1297 +(((
1288 1288  This type of sensor will output a low signal GND when active.
1299 +)))
1289 1289  
1290 -* Connect sensor’s output to DI1-
1291 -* Connect sensor’s VCC to DI1+.
1301 +* (((
1302 +Connect sensor’s output to DI1-
1303 +)))
1304 +* (((
1305 +Connect sensor’s VCC to DI1+.
1306 +)))
1292 1292  
1293 -So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1308 +(((
1309 +So when sensor active, the current between NEC2501 pin1 and pin2 is：
1310 +)))
1294 1294  
1295 -[[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:/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.**
1312 +(((
1313 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1314 +)))
1296 1296  
1297 -If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1316 +(((
1317 +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.
1318 +)))
1298 1298  
1320 +(((
1321 +
1322 +)))
1299 1299  
1324 +(((
1300 1300  **Example2**: Connect to a High active sensor.
1326 +)))
1301 1301  
1328 +(((
1302 1302  This type of sensor will output a high signal (example 24v) when active.
1330 +)))
1303 1303  
1304 -* Connect sensor’s output to DI1+
1305 -* Connect sensor’s GND DI1-.
1332 +* (((
1333 +Connect sensor’s output to DI1+
1334 +)))
1335 +* (((
1336 +Connect sensor’s GND DI1-.
1337 +)))
1306 1306  
1339 +(((
1307 1307  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1341 +)))
1308 1308  
1309 -[[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:/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.**
1343 +(((
1344 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1345 +)))
1310 1310  
1311 -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:/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.
1347 +(((
1348 +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.
1349 +)))
1312 1312  
1351 +(((
1352 +
1353 +)))
1313 1313  
1355 +(((
1314 1314  **Example3**: Connect to a 220v high active sensor.
1357 +)))
1315 1315  
1359 +(((
1316 1316  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1361 +)))
1317 1317  
1318 -* Connect sensor’s output to DI1+ with a serial 50K resistor
1319 -* Connect sensor’s GND DI1-.
1363 +* (((
1364 +Connect sensor’s output to DI1+ with a serial 50K resistor
1365 +)))
1366 +* (((
1367 +Connect sensor’s GND DI1-.
1368 +)))
1320 1320  
1370 +(((
1321 1321  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1372 +)))
1322 1322  
1323 - [[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:/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.**
1374 +(((
1375 + [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1376 +)))
1324 1324  
1325 -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.
1378 +(((
1379 +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.
1380 +)))
1326 1326  
1327 1327  
1328 1328  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
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1803 1803  (((
1804 1804  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.
1805 1805  
1861 +
1862 +== 5.5 Can i use point to point communication for LT-22222-L? ==
1863 +
1864 +Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1865 +
1806 1806  
1807 1807  )))
1808 1808  
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1817 1817  )))
1818 1818  
1819 1819  (((
1820 -Please see this link for how to debug: [[LoRaWAN Communication Debug>>LoRaWAN Communication Debug||anchor="H5.1Howitwork"]]
1880 +Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
1821 1821  
1822 -[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H5.1Howitwork>>http://wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H5.1Howitwork]]
1823 -
1824 1824  
1825 1825  )))
1826 1826  
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1829 1829  )))
1830 1830  
1831 1831  (((
1832 -See this link for trouble shooting:
1833 -
1834 -[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/>>http://wiki1.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
1890 +See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1835 1835  )))
1836 1836  
1837 1837  (((
... ... @@ -1843,9 +1843,7 @@
1843 1843  )))
1844 1844  
1845 1845  (((
1846 -It might be about the channels mapping. Please see this link for detail:
1847 -
1848 -[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H2.NoticeofUS9152FCN4702FAU915Frequencyband>>http://wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H2.NoticeofUS9152FCN4702FAU915Frequencyband]]
1902 +It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1849 1849  )))
1850 1850  
1851 1851  (((
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