Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 77.9 >
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

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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:
... ... @@ -427,7 +427,6 @@
427 427  )))
428 428  )))
429 429  
430 -
431 431  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
432 432  
433 433  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -468,8 +468,6 @@
468 468  
469 469  (((
470 470  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
471 -
472 -
473 473  )))
474 474  
475 475  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
... ... @@ -552,7 +552,6 @@
552 552  )))
553 553  )))
554 554  
555 -
556 556  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
557 557  
558 558  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -593,8 +593,6 @@
593 593  
594 594  (((
595 595  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
596 -
597 -
598 598  )))
599 599  
600 600  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
... ... @@ -623,7 +623,6 @@
623 623  
624 624  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
625 625  
626 -
627 627  (% style="color:#4f81bd" %)**Trigger base on current**:
628 628  
629 629  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -632,7 +632,6 @@
632 632  
633 633  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
634 634  
635 -
636 636  (% style="color:#4f81bd" %)**Trigger base on DI status**:
637 637  
638 638  DI status trigger Flag.
... ... @@ -719,13 +719,10 @@
719 719  
720 720  When device got this command, it will send the MOD6 payload.
721 721  
722 -
723 723  === 3.3.7 Payload Decoder ===
724 724  
725 725  (((
726 726  **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/]]
727 -
728 -
729 729  )))
730 730  
731 731  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -736,7 +736,7 @@
736 736  There are two kinds of Commands:
737 737  )))
738 738  
739 -* (% 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
740 740  
741 741  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
742 742  
... ... @@ -744,7 +744,6 @@
744 744  
745 745  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]]
746 746  
747 -
748 748  === 3.4.2 Sensor related commands ===
749 749  
750 750  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -767,7 +767,6 @@
767 767  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
768 768  )))
769 769  
770 -
771 771  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
772 772  
773 773  Set work mode.
... ... @@ -788,7 +788,6 @@
788 788  **0x0A aa     ~/~/ Same as AT+MOD=aa**
789 789  )))
790 790  
791 -
792 792  ==== 3.4.2.3 Poll an uplink ====
793 793  
794 794  * AT Command:
... ... @@ -804,10 +804,9 @@
804 804  
805 805  **Example**: 0x08FF, ask device to send an Uplink
806 806  
807 -
808 808  ==== 3.4.2.4 Enable Trigger Mode ====
809 809  
810 -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]]
811 811  
812 812  * AT Command:
813 813  
... ... @@ -827,7 +827,6 @@
827 827  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
828 828  )))
829 829  
830 -
831 831  ==== 3.4.2.5 Poll trigger settings ====
832 832  
833 833  Poll trigger settings,
... ... @@ -843,7 +843,6 @@
843 843  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
844 844  )))
845 845  
846 -
847 847  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
848 848  
849 849  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -866,7 +866,6 @@
866 866  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
867 867  )))
868 868  
869 -
870 870  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
871 871  
872 872  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -893,7 +893,6 @@
893 893  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
894 894  )))
895 895  
896 -
897 897  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
898 898  
899 899  Set DI2 trigger.
... ... @@ -920,10 +920,9 @@
920 920  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
921 921  )))
922 922  
923 -
924 924  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
925 925  
926 -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]]
927 927  
928 928  * AT Command:
929 929  
... ... @@ -936,19 +936,18 @@
936 936  
937 937  (% class="box infomessage" %)
938 938  (((
939 -**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]]**
940 940  )))
941 941  
942 -
943 943  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
944 944  
945 -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]]
946 946  
947 947  * AT Command:
948 948  
949 949  (% class="box infomessage" %)
950 950  (((
951 -**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]]**
952 952  )))
953 953  
954 954  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -955,10 +955,9 @@
955 955  
956 956  (% class="box infomessage" %)
957 957  (((
958 -**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]] **
959 959  )))
960 960  
961 -
962 962  ==== 3.4.2.11 Trigger – Set minimum interval ====
963 963  
964 964  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -977,7 +977,6 @@
977 977  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
978 978  )))
979 979  
980 -
981 981  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
982 982  
983 983  * AT Command:
... ... @@ -1152,13 +1152,13 @@
1152 1152  
1153 1153  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1154 1154  
1155 -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]]
1156 1156  
1157 1157  * AT Command:
1158 1158  
1159 1159  (% class="box infomessage" %)
1160 1160  (((
1161 -**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]]**
1162 1162  )))
1163 1163  
1164 1164  * Downlink Payload (prefix 0xA5):
... ... @@ -1168,7 +1168,6 @@
1168 1168  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1169 1169  )))
1170 1170  
1171 -
1172 1172  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1173 1173  
1174 1174  * AT Command:
... ... @@ -1193,7 +1193,6 @@
1193 1193  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1194 1194  )))
1195 1195  
1196 -
1197 1197  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1198 1198  
1199 1199  Clear counting for counting mode
... ... @@ -1212,7 +1212,6 @@
1212 1212  **0x A6 01     ~/~/ clear all counting,**
1213 1213  )))
1214 1214  
1215 -
1216 1216  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1217 1217  
1218 1218  * AT Command:
... ... @@ -1231,8 +1231,6 @@
1231 1231  
1232 1232  (((
1233 1233  range: aa bb cc:0 to 16777215,  (unit:second)
1234 -
1235 -
1236 1236  )))
1237 1237  
1238 1238  == 3.5 Integrate with Mydevice ==
... ... @@ -1253,7 +1253,6 @@
1253 1253  
1254 1254  [[image:image-20220524094641-12.png||height="402" width="718"]]
1255 1255  
1256 -
1257 1257  **Step 3**: Create an account or log in Mydevices.
1258 1258  
1259 1259  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1262,7 +1262,6 @@
1262 1262  
1263 1263  [[image:1653356838789-523.png||height="337" width="740"]]
1264 1264  
1265 -
1266 1266  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1267 1267  
1268 1268  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1275,7 +1275,6 @@
1275 1275  
1276 1276  [[image:image-20220524094909-5.png||height="341" width="734"]]
1277 1277  
1278 -
1279 1279  == 3.6 Interface Detail ==
1280 1280  
1281 1281  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1284,7 +1284,6 @@
1284 1284  
1285 1285  [[image:1653356991268-289.png]]
1286 1286  
1287 -
1288 1288  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1289 1289  
1290 1290  (((
... ... @@ -1300,105 +1300,51 @@
1300 1300  [[image:1653357170703-587.png]]
1301 1301  
1302 1302  (((
1303 -(((
1304 1304  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1305 1305  )))
1306 -)))
1307 1307  
1308 -(((
1309 -
1310 -)))
1311 1311  
1312 -(((
1313 1313  **Example1**: Connect to a Low active sensor.
1314 -)))
1315 1315  
1316 -(((
1317 1317  This type of sensor will output a low signal GND when active.
1318 -)))
1319 1319  
1320 -* (((
1321 -Connect sensor’s output to DI1-
1322 -)))
1323 -* (((
1324 -Connect sensor’s VCC to DI1+.
1325 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1326 1326  
1327 -(((
1328 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1329 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1330 1330  
1331 -(((
1332 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1333 -)))
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.**
1334 1334  
1335 -(((
1336 -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.
1337 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1338 1338  
1339 -(((
1340 -
1341 -)))
1342 1342  
1343 -(((
1344 1344  **Example2**: Connect to a High active sensor.
1345 -)))
1346 1346  
1347 -(((
1348 1348  This type of sensor will output a high signal (example 24v) when active.
1349 -)))
1350 1350  
1351 -* (((
1352 -Connect sensor’s output to DI1+
1353 -)))
1354 -* (((
1355 -Connect sensor’s GND DI1-.
1356 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* Connect sensor’s GND DI1-.
1357 1357  
1358 -(((
1359 1359  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1360 -)))
1361 1361  
1362 -(((
1363 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1364 -)))
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.**
1365 1365  
1366 -(((
1367 -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.
1368 -)))
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.
1369 1369  
1370 -(((
1371 -
1372 -)))
1373 1373  
1374 -(((
1375 1375  **Example3**: Connect to a 220v high active sensor.
1376 -)))
1377 1377  
1378 -(((
1379 1379  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1380 -)))
1381 1381  
1382 -* (((
1383 -Connect sensor’s output to DI1+ with a serial 50K resistor
1384 -)))
1385 -* (((
1386 -Connect sensor’s GND DI1-.
1387 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1388 1388  
1389 -(((
1390 1390  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1391 -)))
1392 1392  
1393 -(((
1394 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1395 -)))
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.**
1396 1396  
1397 -(((
1398 -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.
1399 -)))
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.
1400 1400  
1401 -
1402 1402  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1403 1403  
1404 1404  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1405,7 +1405,6 @@
1405 1405  
1406 1406  [[image:1653357531600-905.png]]
1407 1407  
1408 -
1409 1409  === 3.6.4 Analog Input Interface ===
1410 1410  
1411 1411  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:
... ... @@ -1433,7 +1433,6 @@
1433 1433  
1434 1434  [[image:1653357648330-671.png||height="155" width="733"]]
1435 1435  
1436 -
1437 1437  === 3.6.5 Relay Output ===
1438 1438  
1439 1439  (((
... ... @@ -1444,12 +1444,10 @@
1444 1444  
1445 1445  [[image:image-20220524100215-10.png||height="382" width="723"]]
1446 1446  
1447 -
1448 1448  == 3.7 LEDs Indicators ==
1449 1449  
1450 1450  [[image:image-20220524100748-11.png]]
1451 1451  
1452 -
1453 1453  = 4. Use AT Command =
1454 1454  
1455 1455  == 4.1 Access AT Command ==
... ... @@ -1650,8 +1650,6 @@
1650 1650  
1651 1651  (((
1652 1652  AT+CFG: Print all settings
1653 -
1654 -
1655 1655  )))
1656 1656  
1657 1657  == 4.2 Common AT Command Sequence ==
... ... @@ -1693,8 +1693,6 @@
1693 1693  
1694 1694  (((
1695 1695  (% style="background-color:#dcdcdc" %)ATZ
1696 -
1697 -
1698 1698  )))
1699 1699  
1700 1700  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1776,7 +1776,6 @@
1776 1776  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1777 1777  ATZ
1778 1778  
1779 -
1780 1780  = 5. FAQ =
1781 1781  
1782 1782  == 5.1 How to upgrade the image? ==
... ... @@ -1807,7 +1807,6 @@
1807 1807  
1808 1808  [[image:1653360054704-518.png||height="186" width="745"]]
1809 1809  
1810 -
1811 1811  (((
1812 1812  (((
1813 1813  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1816,8 +1816,6 @@
1816 1816  
1817 1817  (((
1818 1818  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1819 -
1820 -
1821 1821  )))
1822 1822  
1823 1823  (((
... ... @@ -1871,18 +1871,10 @@
1871 1871  
1872 1872  [[image:1653360498588-932.png||height="485" width="726"]]
1873 1873  
1874 -
1875 1875  == 5.4 Can I see counting event in Serial? ==
1876 1876  
1877 1877  (((
1878 1878  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.
1879 -
1880 -
1881 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1882 -
1883 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1884 -
1885 -
1886 1886  )))
1887 1887  
1888 1888  (((
... ... @@ -1896,8 +1896,10 @@
1896 1896  )))
1897 1897  
1898 1898  (((
1899 -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:
1900 1900  
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 +
1901 1901  
1902 1902  )))
1903 1903  
... ... @@ -1906,7 +1906,9 @@
1906 1906  )))
1907 1907  
1908 1908  (((
1909 -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/]]
1910 1910  )))
1911 1911  
1912 1912  (((
... ... @@ -1918,7 +1918,9 @@
1918 1918  )))
1919 1919  
1920 1920  (((
1921 -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]]
1922 1922  )))
1923 1923  
1924 1924  (((
... ... @@ -1992,8 +1992,6 @@
1992 1992  (((
1993 1993  * (((
1994 1994  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1995 -
1996 -
1997 1997  )))
1998 1998  
1999 1999  = 8. Packing Info =
... ... @@ -2026,8 +2026,6 @@
2026 2026  * Device Weight: 105g
2027 2027  * Package Size / pcs : 14.5 x 8 x 5 cm
2028 2028  * Weight / pcs : 170g
2029 -
2030 -
2031 2031  )))
2032 2032  )))
2033 2033  
... ... @@ -2049,8 +2049,6 @@
2049 2049  (((
2050 2050  (((
2051 2051   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2052 -
2053 -
2054 2054  )))
2055 2055  
2056 2056  (((
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