Last modified by Mengting Qiu on 2025/06/04 18:42

From version 77.21
edited by Xiaoling
on 2022/06/10 08:40
Change comment: There is no comment for this version
To version 68.15
edited by Xiaoling
on 2022/05/25 15:17
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -11,15 +11,12 @@
11 11  
12 12  
13 13  
14 -
15 -
16 -
17 17  = 1.Introduction =
18 18  
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
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.
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.
23 23  )))
24 24  
25 25  (((
... ... @@ -27,7 +27,7 @@
27 27  )))
28 28  
29 29  (((
30 -The LT I/O Controllers is aiming to provide an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
27 +The LT I/O Controllers is aiming to provide a simple plug and play, low cost installation by using LoRaWAN wireless technology.
31 31  )))
32 32  
33 33  (((
... ... @@ -44,15 +44,11 @@
44 44  
45 45  (((
46 46  [[image:1653295757274-912.png]]
47 -
48 -
49 49  )))
50 50  
51 51  == 1.2  Specifications ==
52 52  
53 53  (((
54 -
55 -
56 56  **Hardware System:**
57 57  )))
58 58  
... ... @@ -75,7 +75,6 @@
75 75  )))
76 76  )))
77 77  
78 -
79 79  (((
80 80  **Interface for Model: LT22222-L:**
81 81  )))
... ... @@ -99,7 +99,6 @@
99 99  Power Input 7~~ 24V DC. 
100 100  )))
101 101  
102 -
103 103  (((
104 104  **LoRa Spec:**
105 105  )))
... ... @@ -160,12 +160,8 @@
160 160  )))
161 161  * (((
162 162  Packet engine up to 256 bytes with CRC.
163 -
164 -
165 165  )))
166 166  
167 -
168 -
169 169  == 1.3 Features ==
170 170  
171 171  * LoRaWAN Class A & Class C protocol
... ... @@ -176,8 +176,6 @@
176 176  * Firmware upgradable via program port
177 177  * Counting
178 178  
179 -
180 -
181 181  == 1.4  Applications ==
182 182  
183 183  * Smart Buildings & Home Automation
... ... @@ -187,8 +187,6 @@
187 187  * Smart Cities
188 188  * Smart Factory
189 189  
190 -
191 -
192 192  == 1.5 Hardware Variants ==
193 193  
194 194  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -202,8 +202,6 @@
202 202  * 1 x Counting Port
203 203  )))
204 204  
205 -
206 -
207 207  = 2. Power ON Device =
208 208  
209 209  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.
... ... @@ -214,8 +214,6 @@
214 214  
215 215  [[image:1653297104069-180.png]]
216 216  
217 -
218 -
219 219  = 3. Operation Mode =
220 220  
221 221  == 3.1 How it works? ==
... ... @@ -226,12 +226,8 @@
226 226  
227 227  (((
228 228  In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
229 -
230 -
231 231  )))
232 232  
233 -
234 -
235 235  == 3.2 Example to join LoRaWAN network ==
236 236  
237 237  (((
... ... @@ -260,12 +260,10 @@
260 260  
261 261  [[image:1653297955910-247.png||height="321" width="716"]]
262 262  
263 -
264 264  Add APP KEY and DEV EUI
265 265  
266 266  [[image:1653298023685-319.png]]
267 267  
268 -
269 269  (((
270 270  **Step 2**: Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
271 271  )))
... ... @@ -272,8 +272,6 @@
272 272  
273 273  [[image:1653298044601-602.png||height="405" width="709"]]
274 274  
275 -
276 -
277 277  == 3.3 Uplink Payload ==
278 278  
279 279  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -285,8 +285,6 @@
285 285  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
286 286  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
287 287  
288 -
289 -
290 290  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
291 291  
292 292  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -322,7 +322,6 @@
322 322  * [1] RO1 relay channel is close and the RO1 LED is ON.
323 323  * [0] RO2 relay channel is open and RO2 LED is OFF;
324 324  
325 -
326 326  **LT22222-L:**
327 327  
328 328  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -338,8 +338,6 @@
338 338  ** DO1 is high in case there is load between DO1 and V+.
339 339  ** DO1 LED is off in both case
340 340  
341 -
342 -
343 343  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
344 344  
345 345  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
... ... @@ -432,8 +432,6 @@
432 432  )))
433 433  )))
434 434  
435 -
436 -
437 437  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
438 438  
439 439  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -474,12 +474,8 @@
474 474  
475 475  (((
476 476  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
477 -
478 -
479 479  )))
480 480  
481 -
482 -
483 483  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
484 484  
485 485  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -560,8 +560,6 @@
560 560  )))
561 561  )))
562 562  
563 -
564 -
565 565  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
566 566  
567 567  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -602,12 +602,8 @@
602 602  
603 603  (((
604 604  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
605 -
606 -
607 607  )))
608 608  
609 -
610 -
611 611  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
612 612  
613 613  (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
... ... @@ -634,7 +634,6 @@
634 634  
635 635  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
636 636  
637 -
638 638  (% style="color:#4f81bd" %)**Trigger base on current**:
639 639  
640 640  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -643,7 +643,6 @@
643 643  
644 644  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
645 645  
646 -
647 647  (% style="color:#4f81bd" %)**Trigger base on DI status**:
648 648  
649 649  DI status trigger Flag.
... ... @@ -730,18 +730,12 @@
730 730  
731 731  When device got this command, it will send the MOD6 payload.
732 732  
733 -
734 -
735 735  === 3.3.7 Payload Decoder ===
736 736  
737 737  (((
738 738  **Decoder for TTN/loraserver/ChirpStack**: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/]]
739 -
740 -
741 741  )))
742 742  
743 -
744 -
745 745  == 3.4 ​Configure LT via AT or Downlink ==
746 746  
747 747  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
... ... @@ -750,18 +750,14 @@
750 750  There are two kinds of Commands:
751 751  )))
752 752  
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]]
699 +* (% 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
754 754  
755 755  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
756 756  
757 -
758 -
759 759  === 3.4.1 Common Commands ===
760 760  
761 761  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]]
762 762  
763 -
764 -
765 765  === 3.4.2 Sensor related commands ===
766 766  
767 767  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -784,8 +784,6 @@
784 784  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
785 785  )))
786 786  
787 -
788 -
789 789  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
790 790  
791 791  Set work mode.
... ... @@ -806,8 +806,6 @@
806 806  **0x0A aa     ~/~/ Same as AT+MOD=aa**
807 807  )))
808 808  
809 -
810 -
811 811  ==== 3.4.2.3 Poll an uplink ====
812 812  
813 813  * AT Command:
... ... @@ -823,11 +823,9 @@
823 823  
824 824  **Example**: 0x08FF, ask device to send an Uplink
825 825  
826 -
827 -
828 828  ==== 3.4.2.4 Enable Trigger Mode ====
829 829  
830 -Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
766 +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]]
831 831  
832 832  * AT Command:
833 833  
... ... @@ -847,7 +847,6 @@
847 847  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
848 848  )))
849 849  
850 -
851 851  ==== 3.4.2.5 Poll trigger settings ====
852 852  
853 853  Poll trigger settings,
... ... @@ -863,7 +863,6 @@
863 863  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
864 864  )))
865 865  
866 -
867 867  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
868 868  
869 869  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -886,7 +886,6 @@
886 886  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
887 887  )))
888 888  
889 -
890 890  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
891 891  
892 892  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -913,7 +913,6 @@
913 913  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
914 914  )))
915 915  
916 -
917 917  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
918 918  
919 919  Set DI2 trigger.
... ... @@ -940,10 +940,9 @@
940 940  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
941 941  )))
942 942  
943 -
944 944  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
945 945  
946 -Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
877 +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]]
947 947  
948 948  * AT Command:
949 949  
... ... @@ -956,19 +956,18 @@
956 956  
957 957  (% class="box infomessage" %)
958 958  (((
959 -**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
890 +**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]]**
960 960  )))
961 961  
962 -
963 963  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
964 964  
965 -Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
895 +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]]
966 966  
967 967  * AT Command:
968 968  
969 969  (% class="box infomessage" %)
970 970  (((
971 -**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
901 +**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]]**
972 972  )))
973 973  
974 974  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -975,10 +975,9 @@
975 975  
976 976  (% class="box infomessage" %)
977 977  (((
978 -**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
908 +**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]] **
979 979  )))
980 980  
981 -
982 982  ==== 3.4.2.11 Trigger – Set minimum interval ====
983 983  
984 984  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -997,7 +997,6 @@
997 997  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
998 998  )))
999 999  
1000 -
1001 1001  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
1002 1002  
1003 1003  * AT Command:
... ... @@ -1172,13 +1172,13 @@
1172 1172  
1173 1173  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1174 1174  
1175 -When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1103 +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]]
1176 1176  
1177 1177  * AT Command:
1178 1178  
1179 1179  (% class="box infomessage" %)
1180 1180  (((
1181 -**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1109 +**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]]**
1182 1182  )))
1183 1183  
1184 1184  * Downlink Payload (prefix 0xA5):
... ... @@ -1188,7 +1188,6 @@
1188 1188  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1189 1189  )))
1190 1190  
1191 -
1192 1192  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1193 1193  
1194 1194  * AT Command:
... ... @@ -1213,7 +1213,6 @@
1213 1213  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1214 1214  )))
1215 1215  
1216 -
1217 1217  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1218 1218  
1219 1219  Clear counting for counting mode
... ... @@ -1232,7 +1232,6 @@
1232 1232  **0x A6 01     ~/~/ clear all counting,**
1233 1233  )))
1234 1234  
1235 -
1236 1236  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1237 1237  
1238 1238  * AT Command:
... ... @@ -1251,8 +1251,6 @@
1251 1251  
1252 1252  (((
1253 1253  range: aa bb cc:0 to 16777215,  (unit:second)
1254 -
1255 -
1256 1256  )))
1257 1257  
1258 1258  == 3.5 Integrate with Mydevice ==
... ... @@ -1273,7 +1273,6 @@
1273 1273  
1274 1274  [[image:image-20220524094641-12.png||height="402" width="718"]]
1275 1275  
1276 -
1277 1277  **Step 3**: Create an account or log in Mydevices.
1278 1278  
1279 1279  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1282,7 +1282,6 @@
1282 1282  
1283 1283  [[image:1653356838789-523.png||height="337" width="740"]]
1284 1284  
1285 -
1286 1286  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1287 1287  
1288 1288  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1295,7 +1295,6 @@
1295 1295  
1296 1296  [[image:image-20220524094909-5.png||height="341" width="734"]]
1297 1297  
1298 -
1299 1299  == 3.6 Interface Detail ==
1300 1300  
1301 1301  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1304,7 +1304,6 @@
1304 1304  
1305 1305  [[image:1653356991268-289.png]]
1306 1306  
1307 -
1308 1308  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1309 1309  
1310 1310  (((
... ... @@ -1320,105 +1320,51 @@
1320 1320  [[image:1653357170703-587.png]]
1321 1321  
1322 1322  (((
1323 -(((
1324 1324  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1325 1325  )))
1326 -)))
1327 1327  
1328 -(((
1329 -
1330 -)))
1331 1331  
1332 -(((
1333 1333  **Example1**: Connect to a Low active sensor.
1334 -)))
1335 1335  
1336 -(((
1337 1337  This type of sensor will output a low signal GND when active.
1338 -)))
1339 1339  
1340 -* (((
1341 -Connect sensor’s output to DI1-
1342 -)))
1343 -* (((
1344 -Connect sensor’s VCC to DI1+.
1345 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1346 1346  
1347 -(((
1348 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1349 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is: ​​
1350 1350  
1351 -(((
1352 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1353 -)))
1255 +[[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.**
1354 1354  
1355 -(((
1356 -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.
1357 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1358 1358  
1359 -(((
1360 -
1361 -)))
1362 1362  
1363 -(((
1364 1364  **Example2**: Connect to a High active sensor.
1365 -)))
1366 1366  
1367 -(((
1368 1368  This type of sensor will output a high signal (example 24v) when active.
1369 -)))
1370 1370  
1371 -* (((
1372 -Connect sensor’s output to DI1+
1373 -)))
1374 -* (((
1375 -Connect sensor’s GND DI1-.
1376 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* Connect sensor’s GND DI1-.
1377 1377  
1378 -(((
1379 1379  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1380 -)))
1381 1381  
1382 -(((
1383 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1384 -)))
1269 +[[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.**
1385 1385  
1386 -(((
1387 -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.
1388 -)))
1271 +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.
1389 1389  
1390 -(((
1391 -
1392 -)))
1393 1393  
1394 -(((
1395 1395  **Example3**: Connect to a 220v high active sensor.
1396 -)))
1397 1397  
1398 -(((
1399 1399  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1400 -)))
1401 1401  
1402 -* (((
1403 -Connect sensor’s output to DI1+ with a serial 50K resistor
1404 -)))
1405 -* (((
1406 -Connect sensor’s GND DI1-.
1407 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1408 1408  
1409 -(((
1410 1410  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1411 -)))
1412 1412  
1413 -(((
1414 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1415 -)))
1283 + [[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.**
1416 1416  
1417 -(((
1418 -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.
1419 -)))
1285 +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.
1420 1420  
1421 -
1422 1422  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1423 1423  
1424 1424  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1425,7 +1425,6 @@
1425 1425  
1426 1426  [[image:1653357531600-905.png]]
1427 1427  
1428 -
1429 1429  === 3.6.4 Analog Input Interface ===
1430 1430  
1431 1431  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:
... ... @@ -1453,7 +1453,6 @@
1453 1453  
1454 1454  [[image:1653357648330-671.png||height="155" width="733"]]
1455 1455  
1456 -
1457 1457  === 3.6.5 Relay Output ===
1458 1458  
1459 1459  (((
... ... @@ -1464,12 +1464,10 @@
1464 1464  
1465 1465  [[image:image-20220524100215-10.png||height="382" width="723"]]
1466 1466  
1467 -
1468 1468  == 3.7 LEDs Indicators ==
1469 1469  
1470 1470  [[image:image-20220524100748-11.png]]
1471 1471  
1472 -
1473 1473  = 4. Use AT Command =
1474 1474  
1475 1475  == 4.1 Access AT Command ==
... ... @@ -1670,8 +1670,6 @@
1670 1670  
1671 1671  (((
1672 1672  AT+CFG: Print all settings
1673 -
1674 -
1675 1675  )))
1676 1676  
1677 1677  == 4.2 Common AT Command Sequence ==
... ... @@ -1713,8 +1713,6 @@
1713 1713  
1714 1714  (((
1715 1715  (% style="background-color:#dcdcdc" %)ATZ
1716 -
1717 -
1718 1718  )))
1719 1719  
1720 1720  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1796,7 +1796,6 @@
1796 1796  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1797 1797  ATZ
1798 1798  
1799 -
1800 1800  = 5. FAQ =
1801 1801  
1802 1802  == 5.1 How to upgrade the image? ==
... ... @@ -1827,7 +1827,6 @@
1827 1827  
1828 1828  [[image:1653360054704-518.png||height="186" width="745"]]
1829 1829  
1830 -
1831 1831  (((
1832 1832  (((
1833 1833  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1836,8 +1836,6 @@
1836 1836  
1837 1837  (((
1838 1838  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1839 -
1840 -
1841 1841  )))
1842 1842  
1843 1843  (((
... ... @@ -1891,18 +1891,10 @@
1891 1891  
1892 1892  [[image:1653360498588-932.png||height="485" width="726"]]
1893 1893  
1894 -
1895 1895  == 5.4 Can I see counting event in Serial? ==
1896 1896  
1897 1897  (((
1898 1898  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.
1899 -
1900 -
1901 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1902 -
1903 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1904 -
1905 -
1906 1906  )))
1907 1907  
1908 1908  (((
... ... @@ -1916,8 +1916,10 @@
1916 1916  )))
1917 1917  
1918 1918  (((
1919 -Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
1764 +Please see this link for how to debug:
1920 1920  
1766 +[[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]]
1767 +
1921 1921  
1922 1922  )))
1923 1923  
... ... @@ -1926,7 +1926,9 @@
1926 1926  )))
1927 1927  
1928 1928  (((
1929 -See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1776 +See this link for trouble shooting:
1777 +
1778 +[[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/]]
1930 1930  )))
1931 1931  
1932 1932  (((
... ... @@ -1938,7 +1938,9 @@
1938 1938  )))
1939 1939  
1940 1940  (((
1941 -It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1790 +It might be about the channels mapping. Please see this link for detail:
1791 +
1792 +[[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]]
1942 1942  )))
1943 1943  
1944 1944  (((
... ... @@ -2012,8 +2012,6 @@
2012 2012  (((
2013 2013  * (((
2014 2014  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2015 -
2016 -
2017 2017  )))
2018 2018  
2019 2019  = 8. Packing Info =
... ... @@ -2046,8 +2046,6 @@
2046 2046  * Device Weight: 105g
2047 2047  * Package Size / pcs : 14.5 x 8 x 5 cm
2048 2048  * Weight / pcs : 170g
2049 -
2050 -
2051 2051  )))
2052 2052  )))
2053 2053  
... ... @@ -2069,8 +2069,6 @@
2069 2069  (((
2070 2070  (((
2071 2071   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2072 -
2073 -
2074 2074  )))
2075 2075  
2076 2076  (((
1653968155772-850.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -886 bytes
Content
1653968164738-884.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -886 bytes
Content
1653968172068-832.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -886 bytes
Content
image-20220531113415-1.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -172 bytes
Content