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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 77.20
edited by Xiaoling
on 2022/06/10 08:40
Change comment: There is no comment for this version
To version 68.10
edited by Xiaoling
on 2022/05/25 15:01
Change comment: There is no comment for this version

Summary

Details

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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:
... ... @@ -823,10 +823,9 @@
823 823  
824 824  **Example**: 0x08FF, ask device to send an Uplink
825 825  
826 -
827 827  ==== 3.4.2.4 Enable Trigger Mode ====
828 828  
829 -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]]
830 830  
831 831  * AT Command:
832 832  
... ... @@ -846,7 +846,6 @@
846 846  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
847 847  )))
848 848  
849 -
850 850  ==== 3.4.2.5 Poll trigger settings ====
851 851  
852 852  Poll trigger settings,
... ... @@ -862,7 +862,6 @@
862 862  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
863 863  )))
864 864  
865 -
866 866  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
867 867  
868 868  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -885,7 +885,6 @@
885 885  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
886 886  )))
887 887  
888 -
889 889  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
890 890  
891 891  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -912,7 +912,6 @@
912 912  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
913 913  )))
914 914  
915 -
916 916  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
917 917  
918 918  Set DI2 trigger.
... ... @@ -939,10 +939,9 @@
939 939  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
940 940  )))
941 941  
942 -
943 943  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
944 944  
945 -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]]
946 946  
947 947  * AT Command:
948 948  
... ... @@ -955,19 +955,18 @@
955 955  
956 956  (% class="box infomessage" %)
957 957  (((
958 -**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]]**
959 959  )))
960 960  
961 -
962 962  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
963 963  
964 -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]]
965 965  
966 966  * AT Command:
967 967  
968 968  (% class="box infomessage" %)
969 969  (((
970 -**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]]**
971 971  )))
972 972  
973 973  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -974,10 +974,9 @@
974 974  
975 975  (% class="box infomessage" %)
976 976  (((
977 -**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]] **
978 978  )))
979 979  
980 -
981 981  ==== 3.4.2.11 Trigger – Set minimum interval ====
982 982  
983 983  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -996,7 +996,6 @@
996 996  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
997 997  )))
998 998  
999 -
1000 1000  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
1001 1001  
1002 1002  * AT Command:
... ... @@ -1171,13 +1171,13 @@
1171 1171  
1172 1172  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1173 1173  
1174 -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]]
1175 1175  
1176 1176  * AT Command:
1177 1177  
1178 1178  (% class="box infomessage" %)
1179 1179  (((
1180 -**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]]**
1181 1181  )))
1182 1182  
1183 1183  * Downlink Payload (prefix 0xA5):
... ... @@ -1187,7 +1187,6 @@
1187 1187  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1188 1188  )))
1189 1189  
1190 -
1191 1191  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1192 1192  
1193 1193  * AT Command:
... ... @@ -1212,7 +1212,6 @@
1212 1212  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1213 1213  )))
1214 1214  
1215 -
1216 1216  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1217 1217  
1218 1218  Clear counting for counting mode
... ... @@ -1231,7 +1231,6 @@
1231 1231  **0x A6 01     ~/~/ clear all counting,**
1232 1232  )))
1233 1233  
1234 -
1235 1235  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1236 1236  
1237 1237  * AT Command:
... ... @@ -1250,8 +1250,6 @@
1250 1250  
1251 1251  (((
1252 1252  range: aa bb cc:0 to 16777215,  (unit:second)
1253 -
1254 -
1255 1255  )))
1256 1256  
1257 1257  == 3.5 Integrate with Mydevice ==
... ... @@ -1272,7 +1272,6 @@
1272 1272  
1273 1273  [[image:image-20220524094641-12.png||height="402" width="718"]]
1274 1274  
1275 -
1276 1276  **Step 3**: Create an account or log in Mydevices.
1277 1277  
1278 1278  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1281,7 +1281,6 @@
1281 1281  
1282 1282  [[image:1653356838789-523.png||height="337" width="740"]]
1283 1283  
1284 -
1285 1285  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1286 1286  
1287 1287  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1294,7 +1294,6 @@
1294 1294  
1295 1295  [[image:image-20220524094909-5.png||height="341" width="734"]]
1296 1296  
1297 -
1298 1298  == 3.6 Interface Detail ==
1299 1299  
1300 1300  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1303,7 +1303,6 @@
1303 1303  
1304 1304  [[image:1653356991268-289.png]]
1305 1305  
1306 -
1307 1307  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1308 1308  
1309 1309  (((
... ... @@ -1319,105 +1319,51 @@
1319 1319  [[image:1653357170703-587.png]]
1320 1320  
1321 1321  (((
1322 -(((
1323 1323  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1324 1324  )))
1325 -)))
1326 1326  
1327 -(((
1328 -
1329 -)))
1330 1330  
1331 -(((
1332 1332  **Example1**: Connect to a Low active sensor.
1333 -)))
1334 1334  
1335 -(((
1336 1336  This type of sensor will output a low signal GND when active.
1337 -)))
1338 1338  
1339 -* (((
1340 -Connect sensor’s output to DI1-
1341 -)))
1342 -* (((
1343 -Connect sensor’s VCC to DI1+.
1344 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1345 1345  
1346 -(((
1347 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1348 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1349 1349  
1350 -(((
1351 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1352 -)))
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:/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:/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:/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.**
1353 1353  
1354 -(((
1355 -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.
1356 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1357 1357  
1358 -(((
1359 -
1360 -)))
1361 1361  
1362 -(((
1363 1363  **Example2**: Connect to a High active sensor.
1364 -)))
1365 1365  
1366 -(((
1367 1367  This type of sensor will output a high signal (example 24v) when active.
1368 -)))
1369 1369  
1370 -* (((
1371 -Connect sensor’s output to DI1+
1372 -)))
1373 -* (((
1374 -Connect sensor’s GND DI1-.
1375 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* Connect sensor’s GND DI1-.
1376 1376  
1377 -(((
1378 1378  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1379 -)))
1380 1380  
1381 -(((
1382 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1383 -)))
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:/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:/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:/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.**
1384 1384  
1385 -(((
1386 -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.
1387 -)))
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:/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:/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:/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.
1388 1388  
1389 -(((
1390 -
1391 -)))
1392 1392  
1393 -(((
1394 1394  **Example3**: Connect to a 220v high active sensor.
1395 -)))
1396 1396  
1397 -(((
1398 1398  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1399 -)))
1400 1400  
1401 -* (((
1402 -Connect sensor’s output to DI1+ with a serial 50K resistor
1403 -)))
1404 -* (((
1405 -Connect sensor’s GND DI1-.
1406 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1407 1407  
1408 -(((
1409 1409  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1410 -)))
1411 1411  
1412 -(((
1413 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1414 -)))
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:/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:/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:/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.**
1415 1415  
1416 -(((
1417 -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.
1418 -)))
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.
1419 1419  
1420 -
1421 1421  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1422 1422  
1423 1423  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1424,7 +1424,6 @@
1424 1424  
1425 1425  [[image:1653357531600-905.png]]
1426 1426  
1427 -
1428 1428  === 3.6.4 Analog Input Interface ===
1429 1429  
1430 1430  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:
... ... @@ -1452,7 +1452,6 @@
1452 1452  
1453 1453  [[image:1653357648330-671.png||height="155" width="733"]]
1454 1454  
1455 -
1456 1456  === 3.6.5 Relay Output ===
1457 1457  
1458 1458  (((
... ... @@ -1463,12 +1463,10 @@
1463 1463  
1464 1464  [[image:image-20220524100215-10.png||height="382" width="723"]]
1465 1465  
1466 -
1467 1467  == 3.7 LEDs Indicators ==
1468 1468  
1469 1469  [[image:image-20220524100748-11.png]]
1470 1470  
1471 -
1472 1472  = 4. Use AT Command =
1473 1473  
1474 1474  == 4.1 Access AT Command ==
... ... @@ -1669,8 +1669,6 @@
1669 1669  
1670 1670  (((
1671 1671  AT+CFG: Print all settings
1672 -
1673 -
1674 1674  )))
1675 1675  
1676 1676  == 4.2 Common AT Command Sequence ==
... ... @@ -1712,8 +1712,6 @@
1712 1712  
1713 1713  (((
1714 1714  (% style="background-color:#dcdcdc" %)ATZ
1715 -
1716 -
1717 1717  )))
1718 1718  
1719 1719  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1795,7 +1795,6 @@
1795 1795  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1796 1796  ATZ
1797 1797  
1798 -
1799 1799  = 5. FAQ =
1800 1800  
1801 1801  == 5.1 How to upgrade the image? ==
... ... @@ -1826,7 +1826,6 @@
1826 1826  
1827 1827  [[image:1653360054704-518.png||height="186" width="745"]]
1828 1828  
1829 -
1830 1830  (((
1831 1831  (((
1832 1832  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1835,8 +1835,6 @@
1835 1835  
1836 1836  (((
1837 1837  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1838 -
1839 -
1840 1840  )))
1841 1841  
1842 1842  (((
... ... @@ -1890,18 +1890,10 @@
1890 1890  
1891 1891  [[image:1653360498588-932.png||height="485" width="726"]]
1892 1892  
1893 -
1894 1894  == 5.4 Can I see counting event in Serial? ==
1895 1895  
1896 1896  (((
1897 1897  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.
1898 -
1899 -
1900 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1901 -
1902 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1903 -
1904 -
1905 1905  )))
1906 1906  
1907 1907  (((
... ... @@ -1915,8 +1915,10 @@
1915 1915  )))
1916 1916  
1917 1917  (((
1918 -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: [[see how it work>>LoRaWAN_Communication_Debug||anchor="H5.1Howitwork:NO"]]
1919 1919  
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 +
1920 1920  
1921 1921  )))
1922 1922  
... ... @@ -1925,7 +1925,9 @@
1925 1925  )))
1926 1926  
1927 1927  (((
1928 -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/]]
1929 1929  )))
1930 1930  
1931 1931  (((
... ... @@ -1937,7 +1937,9 @@
1937 1937  )))
1938 1938  
1939 1939  (((
1940 -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]]
1941 1941  )))
1942 1942  
1943 1943  (((
... ... @@ -2011,8 +2011,6 @@
2011 2011  (((
2012 2012  * (((
2013 2013  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2014 -
2015 -
2016 2016  )))
2017 2017  
2018 2018  = 8. Packing Info =
... ... @@ -2045,8 +2045,6 @@
2045 2045  * Device Weight: 105g
2046 2046  * Package Size / pcs : 14.5 x 8 x 5 cm
2047 2047  * Weight / pcs : 170g
2048 -
2049 -
2050 2050  )))
2051 2051  )))
2052 2052  
... ... @@ -2068,8 +2068,6 @@
2068 2068  (((
2069 2069  (((
2070 2070   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2071 -
2072 -
2073 2073  )))
2074 2074  
2075 2075  (((
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