Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 77.8 >
edited by Xiaoling
on 2022/06/10 08:38
To version < 68.14 >
edited by Xiaoling
on 2022/05/25 15:16
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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  )))
... ... @@ -272,7 +272,6 @@
272 272  
273 273  [[image:1653298044601-602.png||height="405" width="709"]]
274 274  
275 -
276 276  == 3.3 Uplink Payload ==
277 277  
278 278  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -426,7 +426,6 @@
426 426  )))
427 427  )))
428 428  
429 -
430 430  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
431 431  
432 432  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -467,8 +467,6 @@
467 467  
468 468  (((
469 469  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
470 -
471 -
472 472  )))
473 473  
474 474  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
... ... @@ -551,7 +551,6 @@
551 551  )))
552 552  )))
553 553  
554 -
555 555  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
556 556  
557 557  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -592,8 +592,6 @@
592 592  
593 593  (((
594 594  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
595 -
596 -
597 597  )))
598 598  
599 599  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
... ... @@ -622,7 +622,6 @@
622 622  
623 623  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
624 624  
625 -
626 626  (% style="color:#4f81bd" %)**Trigger base on current**:
627 627  
628 628  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -631,7 +631,6 @@
631 631  
632 632  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
633 633  
634 -
635 635  (% style="color:#4f81bd" %)**Trigger base on DI status**:
636 636  
637 637  DI status trigger Flag.
... ... @@ -718,13 +718,10 @@
718 718  
719 719  When device got this command, it will send the MOD6 payload.
720 720  
721 -
722 722  === 3.3.7 Payload Decoder ===
723 723  
724 724  (((
725 725  **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/]]
726 -
727 -
728 728  )))
729 729  
730 730  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -735,7 +735,7 @@
735 735  There are two kinds of Commands:
736 736  )))
737 737  
738 -* (% 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
739 739  
740 740  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
741 741  
... ... @@ -743,7 +743,6 @@
743 743  
744 744  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]]
745 745  
746 -
747 747  === 3.4.2 Sensor related commands ===
748 748  
749 749  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -766,7 +766,6 @@
766 766  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
767 767  )))
768 768  
769 -
770 770  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
771 771  
772 772  Set work mode.
... ... @@ -787,7 +787,6 @@
787 787  **0x0A aa     ~/~/ Same as AT+MOD=aa**
788 788  )))
789 789  
790 -
791 791  ==== 3.4.2.3 Poll an uplink ====
792 792  
793 793  * AT Command:
... ... @@ -803,10 +803,9 @@
803 803  
804 804  **Example**: 0x08FF, ask device to send an Uplink
805 805  
806 -
807 807  ==== 3.4.2.4 Enable Trigger Mode ====
808 808  
809 -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]]
810 810  
811 811  * AT Command:
812 812  
... ... @@ -826,7 +826,6 @@
826 826  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
827 827  )))
828 828  
829 -
830 830  ==== 3.4.2.5 Poll trigger settings ====
831 831  
832 832  Poll trigger settings,
... ... @@ -842,7 +842,6 @@
842 842  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
843 843  )))
844 844  
845 -
846 846  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
847 847  
848 848  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -865,7 +865,6 @@
865 865  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
866 866  )))
867 867  
868 -
869 869  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
870 870  
871 871  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -892,7 +892,6 @@
892 892  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
893 893  )))
894 894  
895 -
896 896  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
897 897  
898 898  Set DI2 trigger.
... ... @@ -919,10 +919,9 @@
919 919  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
920 920  )))
921 921  
922 -
923 923  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
924 924  
925 -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]]
926 926  
927 927  * AT Command:
928 928  
... ... @@ -935,19 +935,18 @@
935 935  
936 936  (% class="box infomessage" %)
937 937  (((
938 -**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]]**
939 939  )))
940 940  
941 -
942 942  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
943 943  
944 -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]]
945 945  
946 946  * AT Command:
947 947  
948 948  (% class="box infomessage" %)
949 949  (((
950 -**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]]**
951 951  )))
952 952  
953 953  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -954,10 +954,9 @@
954 954  
955 955  (% class="box infomessage" %)
956 956  (((
957 -**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]] **
958 958  )))
959 959  
960 -
961 961  ==== 3.4.2.11 Trigger – Set minimum interval ====
962 962  
963 963  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -976,7 +976,6 @@
976 976  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
977 977  )))
978 978  
979 -
980 980  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
981 981  
982 982  * AT Command:
... ... @@ -1151,13 +1151,13 @@
1151 1151  
1152 1152  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1153 1153  
1154 -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]]
1155 1155  
1156 1156  * AT Command:
1157 1157  
1158 1158  (% class="box infomessage" %)
1159 1159  (((
1160 -**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]]**
1161 1161  )))
1162 1162  
1163 1163  * Downlink Payload (prefix 0xA5):
... ... @@ -1167,7 +1167,6 @@
1167 1167  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1168 1168  )))
1169 1169  
1170 -
1171 1171  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1172 1172  
1173 1173  * AT Command:
... ... @@ -1192,7 +1192,6 @@
1192 1192  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1193 1193  )))
1194 1194  
1195 -
1196 1196  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1197 1197  
1198 1198  Clear counting for counting mode
... ... @@ -1211,7 +1211,6 @@
1211 1211  **0x A6 01     ~/~/ clear all counting,**
1212 1212  )))
1213 1213  
1214 -
1215 1215  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1216 1216  
1217 1217  * AT Command:
... ... @@ -1230,8 +1230,6 @@
1230 1230  
1231 1231  (((
1232 1232  range: aa bb cc:0 to 16777215,  (unit:second)
1233 -
1234 -
1235 1235  )))
1236 1236  
1237 1237  == 3.5 Integrate with Mydevice ==
... ... @@ -1252,7 +1252,6 @@
1252 1252  
1253 1253  [[image:image-20220524094641-12.png||height="402" width="718"]]
1254 1254  
1255 -
1256 1256  **Step 3**: Create an account or log in Mydevices.
1257 1257  
1258 1258  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1261,7 +1261,6 @@
1261 1261  
1262 1262  [[image:1653356838789-523.png||height="337" width="740"]]
1263 1263  
1264 -
1265 1265  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1266 1266  
1267 1267  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1274,7 +1274,6 @@
1274 1274  
1275 1275  [[image:image-20220524094909-5.png||height="341" width="734"]]
1276 1276  
1277 -
1278 1278  == 3.6 Interface Detail ==
1279 1279  
1280 1280  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1283,7 +1283,6 @@
1283 1283  
1284 1284  [[image:1653356991268-289.png]]
1285 1285  
1286 -
1287 1287  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1288 1288  
1289 1289  (((
... ... @@ -1299,105 +1299,51 @@
1299 1299  [[image:1653357170703-587.png]]
1300 1300  
1301 1301  (((
1302 -(((
1303 1303  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1304 1304  )))
1305 -)))
1306 1306  
1307 -(((
1308 -
1309 -)))
1310 1310  
1311 -(((
1312 1312  **Example1**: Connect to a Low active sensor.
1313 -)))
1314 1314  
1315 -(((
1316 1316  This type of sensor will output a low signal GND when active.
1317 -)))
1318 1318  
1319 -* (((
1320 -Connect sensor’s output to DI1-
1321 -)))
1322 -* (((
1323 -Connect sensor’s VCC to DI1+.
1324 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1325 1325  
1326 -(((
1327 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1328 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1329 1329  
1330 -(((
1331 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1332 -)))
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:/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.**
1333 1333  
1334 -(((
1335 -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.
1336 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1337 1337  
1338 -(((
1339 -
1340 -)))
1341 1341  
1342 -(((
1343 1343  **Example2**: Connect to a High active sensor.
1344 -)))
1345 1345  
1346 -(((
1347 1347  This type of sensor will output a high signal (example 24v) when active.
1348 -)))
1349 1349  
1350 -* (((
1351 -Connect sensor’s output to DI1+
1352 -)))
1353 -* (((
1354 -Connect sensor’s GND DI1-.
1355 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* Connect sensor’s GND DI1-.
1356 1356  
1357 -(((
1358 1358  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1359 -)))
1360 1360  
1361 -(((
1362 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1363 -)))
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:/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.**
1364 1364  
1365 -(((
1366 -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.
1367 -)))
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:/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.
1368 1368  
1369 -(((
1370 -
1371 -)))
1372 1372  
1373 -(((
1374 1374  **Example3**: Connect to a 220v high active sensor.
1375 -)))
1376 1376  
1377 -(((
1378 1378  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1379 -)))
1380 1380  
1381 -* (((
1382 -Connect sensor’s output to DI1+ with a serial 50K resistor
1383 -)))
1384 -* (((
1385 -Connect sensor’s GND DI1-.
1386 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1387 1387  
1388 -(((
1389 1389  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1390 -)))
1391 1391  
1392 -(((
1393 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1394 -)))
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:/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.**
1395 1395  
1396 -(((
1397 -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.
1398 -)))
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.
1399 1399  
1400 -
1401 1401  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1402 1402  
1403 1403  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1404,7 +1404,6 @@
1404 1404  
1405 1405  [[image:1653357531600-905.png]]
1406 1406  
1407 -
1408 1408  === 3.6.4 Analog Input Interface ===
1409 1409  
1410 1410  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:
... ... @@ -1432,7 +1432,6 @@
1432 1432  
1433 1433  [[image:1653357648330-671.png||height="155" width="733"]]
1434 1434  
1435 -
1436 1436  === 3.6.5 Relay Output ===
1437 1437  
1438 1438  (((
... ... @@ -1443,12 +1443,10 @@
1443 1443  
1444 1444  [[image:image-20220524100215-10.png||height="382" width="723"]]
1445 1445  
1446 -
1447 1447  == 3.7 LEDs Indicators ==
1448 1448  
1449 1449  [[image:image-20220524100748-11.png]]
1450 1450  
1451 -
1452 1452  = 4. Use AT Command =
1453 1453  
1454 1454  == 4.1 Access AT Command ==
... ... @@ -1649,8 +1649,6 @@
1649 1649  
1650 1650  (((
1651 1651  AT+CFG: Print all settings
1652 -
1653 -
1654 1654  )))
1655 1655  
1656 1656  == 4.2 Common AT Command Sequence ==
... ... @@ -1692,8 +1692,6 @@
1692 1692  
1693 1693  (((
1694 1694  (% style="background-color:#dcdcdc" %)ATZ
1695 -
1696 -
1697 1697  )))
1698 1698  
1699 1699  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1775,7 +1775,6 @@
1775 1775  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1776 1776  ATZ
1777 1777  
1778 -
1779 1779  = 5. FAQ =
1780 1780  
1781 1781  == 5.1 How to upgrade the image? ==
... ... @@ -1806,7 +1806,6 @@
1806 1806  
1807 1807  [[image:1653360054704-518.png||height="186" width="745"]]
1808 1808  
1809 -
1810 1810  (((
1811 1811  (((
1812 1812  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1815,8 +1815,6 @@
1815 1815  
1816 1816  (((
1817 1817  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1818 -
1819 -
1820 1820  )))
1821 1821  
1822 1822  (((
... ... @@ -1870,18 +1870,10 @@
1870 1870  
1871 1871  [[image:1653360498588-932.png||height="485" width="726"]]
1872 1872  
1873 -
1874 1874  == 5.4 Can I see counting event in Serial? ==
1875 1875  
1876 1876  (((
1877 1877  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.
1878 -
1879 -
1880 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1881 -
1882 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1883 -
1884 -
1885 1885  )))
1886 1886  
1887 1887  (((
... ... @@ -1895,8 +1895,10 @@
1895 1895  )))
1896 1896  
1897 1897  (((
1898 -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:
1899 1899  
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 +
1900 1900  
1901 1901  )))
1902 1902  
... ... @@ -1905,7 +1905,9 @@
1905 1905  )))
1906 1906  
1907 1907  (((
1908 -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/]]
1909 1909  )))
1910 1910  
1911 1911  (((
... ... @@ -1917,7 +1917,9 @@
1917 1917  )))
1918 1918  
1919 1919  (((
1920 -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]]
1921 1921  )))
1922 1922  
1923 1923  (((
... ... @@ -1991,8 +1991,6 @@
1991 1991  (((
1992 1992  * (((
1993 1993  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1994 -
1995 -
1996 1996  )))
1997 1997  
1998 1998  = 8. Packing Info =
... ... @@ -2025,8 +2025,6 @@
2025 2025  * Device Weight: 105g
2026 2026  * Package Size / pcs : 14.5 x 8 x 5 cm
2027 2027  * Weight / pcs : 170g
2028 -
2029 -
2030 2030  )))
2031 2031  )))
2032 2032  
... ... @@ -2048,8 +2048,6 @@
2048 2048  (((
2049 2049  (((
2050 2050   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2051 -
2052 -
2053 2053  )))
2054 2054  
2055 2055  (((
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