Last modified by Saxer Lin on 2025/04/15 17:24
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From version < 68.20 >
edited by Xiaoling
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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  (((
... ... @@ -168,6 +168,7 @@
168 168  * Counting
169 169  
170 170  
171 +
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  
182 +
181 181  == 1.5 Hardware Variants ==
182 182  
183 183  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -271,6 +271,7 @@
271 271  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
272 272  
273 273  
276 +
274 274  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
275 275  
276 276  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -306,7 +306,6 @@
306 306  * [1] RO1 relay channel is close and the RO1 LED is ON.
307 307  * [0] RO2 relay channel is open and RO2 LED is OFF;
308 308  
309 -
310 310  **LT22222-L:**
311 311  
312 312  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -323,6 +323,7 @@
323 323  ** DO1 LED is off in both case
324 324  
325 325  
328 +
326 326  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
327 327  
328 328  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
... ... @@ -611,6 +611,7 @@
611 611  
612 612  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
613 613  
617 +
614 614  (% style="color:#4f81bd" %)**Trigger base on current**:
615 615  
616 616  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -619,6 +619,7 @@
619 619  
620 620  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
621 621  
626 +
622 622  (% style="color:#4f81bd" %)**Trigger base on DI status**:
623 623  
624 624  DI status trigger Flag.
... ... @@ -722,11 +722,10 @@
722 722  There are two kinds of Commands:
723 723  )))
724 724  
725 -* (% 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
730 +* (% 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]]
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  
729 -
730 730  === 3.4.1 Common Commands ===
731 731  
732 732  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]]
... ... @@ -794,7 +794,7 @@
794 794  
795 795  ==== 3.4.2.4 Enable Trigger Mode ====
796 796  
797 -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]]
801 +Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
798 798  
799 799  * AT Command:
800 800  
... ... @@ -910,7 +910,7 @@
910 910  
911 911  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
912 912  
913 -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]]
917 +Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
914 914  
915 915  * AT Command:
916 916  
... ... @@ -923,19 +923,19 @@
923 923  
924 924  (% class="box infomessage" %)
925 925  (((
926 -**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]]**
930 +**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
927 927  )))
928 928  
929 929  
930 930  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
931 931  
932 -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]]
936 +Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
933 933  
934 934  * AT Command:
935 935  
936 936  (% class="box infomessage" %)
937 937  (((
938 -**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]]**
942 +**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
939 939  )))
940 940  
941 941  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -942,7 +942,7 @@
942 942  
943 943  (% class="box infomessage" %)
944 944  (((
945 -**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]] **
949 +**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
946 946  )))
947 947  
948 948  
... ... @@ -1139,7 +1139,7 @@
1139 1139  
1140 1140  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1141 1141  
1142 -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]]
1146 +When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1143 1143  
1144 1144  * AT Command:
1145 1145  
... ... @@ -1286,50 +1286,103 @@
1286 1286  [[image:1653357170703-587.png]]
1287 1287  
1288 1288  (((
1293 +(((
1289 1289  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1290 1290  )))
1296 +)))
1291 1291  
1298 +(((
1299 +
1300 +)))
1292 1292  
1302 +(((
1293 1293  **Example1**: Connect to a Low active sensor.
1304 +)))
1294 1294  
1306 +(((
1295 1295  This type of sensor will output a low signal GND when active.
1308 +)))
1296 1296  
1297 -* Connect sensor’s output to DI1-
1298 -* Connect sensor’s VCC to DI1+.
1310 +* (((
1311 +Connect sensor’s output to DI1-
1312 +)))
1313 +* (((
1314 +Connect sensor’s VCC to DI1+.
1315 +)))
1299 1299  
1300 -So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1317 +(((
1318 +So when sensor active, the current between NEC2501 pin1 and pin2 is：
1319 +)))
1301 1301  
1302 -[[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.**
1321 +(((
1322 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1323 +)))
1303 1303  
1304 -If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1325 +(((
1326 +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.
1327 +)))
1305 1305  
1329 +(((
1330 +
1331 +)))
1306 1306  
1333 +(((
1307 1307  **Example2**: Connect to a High active sensor.
1335 +)))
1308 1308  
1337 +(((
1309 1309  This type of sensor will output a high signal (example 24v) when active.
1339 +)))
1310 1310  
1311 -* Connect sensor’s output to DI1+
1312 -* Connect sensor’s GND DI1-.
1341 +* (((
1342 +Connect sensor’s output to DI1+
1343 +)))
1344 +* (((
1345 +Connect sensor’s GND DI1-.
1346 +)))
1313 1313  
1348 +(((
1314 1314  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1350 +)))
1315 1315  
1316 -[[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.**
1352 +(((
1353 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1354 +)))
1317 1317  
1318 -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.
1356 +(((
1357 +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.
1358 +)))
1319 1319  
1360 +(((
1361 +
1362 +)))
1320 1320  
1364 +(((
1321 1321  **Example3**: Connect to a 220v high active sensor.
1366 +)))
1322 1322  
1368 +(((
1323 1323  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1370 +)))
1324 1324  
1325 -* Connect sensor’s output to DI1+ with a serial 50K resistor
1326 -* Connect sensor’s GND DI1-.
1372 +* (((
1373 +Connect sensor’s output to DI1+ with a serial 50K resistor
1374 +)))
1375 +* (((
1376 +Connect sensor’s GND DI1-.
1377 +)))
1327 1327  
1379 +(((
1328 1328  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1381 +)))
1329 1329  
1330 - [[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.**
1383 +(((
1384 + [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1385 +)))
1331 1331  
1332 -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.
1387 +(((
1388 +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.
1389 +)))
1333 1333  
1334 1334  
1335 1335  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
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1824 1824  )))
1825 1825  
1826 1826  (((
1827 -Please see this link for how to debug:
1884 +Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
1828 1828  
1829 -[[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]]
1830 -
1831 1831  
1832 1832  )))
1833 1833  
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1836 1836  )))
1837 1837  
1838 1838  (((
1839 -See this link for trouble shooting:
1840 -
1841 -[[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/]]
1894 +See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1842 1842  )))
1843 1843  
1844 1844  (((
... ... @@ -1850,9 +1850,7 @@
1850 1850  )))
1851 1851  
1852 1852  (((
1853 -It might be about the channels mapping. Please see this link for detail:
1854 -
1855 -[[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]]
1906 +It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1856 1856  )))
1857 1857  
1858 1858  (((
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