Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 77.16 >
edited by Xiaoling
on 2022/06/10 08:40
To version < 68.11 >
edited by Xiaoling
on 2022/05/25 15:12
>
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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  )))
... ... @@ -272,8 +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.
... ... @@ -730,13 +730,10 @@
730 730  
731 731  When device got this command, it will send the MOD6 payload.
732 732  
733 -
734 734  === 3.3.7 Payload Decoder ===
735 735  
736 736  (((
737 737  **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/]]
738 -
739 -
740 740  )))
741 741  
742 742  == 3.4 ​Configure LT via AT or Downlink ==
... ... @@ -747,7 +747,7 @@
747 747  There are two kinds of Commands:
748 748  )))
749 749  
750 -* (% 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
751 751  
752 752  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
753 753  
... ... @@ -755,7 +755,6 @@
755 755  
756 756  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]]
757 757  
758 -
759 759  === 3.4.2 Sensor related commands ===
760 760  
761 761  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -778,7 +778,6 @@
778 778  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
779 779  )))
780 780  
781 -
782 782  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
783 783  
784 784  Set work mode.
... ... @@ -799,7 +799,6 @@
799 799  **0x0A aa     ~/~/ Same as AT+MOD=aa**
800 800  )))
801 801  
802 -
803 803  ==== 3.4.2.3 Poll an uplink ====
804 804  
805 805  * AT Command:
... ... @@ -815,10 +815,9 @@
815 815  
816 816  **Example**: 0x08FF, ask device to send an Uplink
817 817  
818 -
819 819  ==== 3.4.2.4 Enable Trigger Mode ====
820 820  
821 -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]]
822 822  
823 823  * AT Command:
824 824  
... ... @@ -838,7 +838,6 @@
838 838  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
839 839  )))
840 840  
841 -
842 842  ==== 3.4.2.5 Poll trigger settings ====
843 843  
844 844  Poll trigger settings,
... ... @@ -854,7 +854,6 @@
854 854  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
855 855  )))
856 856  
857 -
858 858  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
859 859  
860 860  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -877,7 +877,6 @@
877 877  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
878 878  )))
879 879  
880 -
881 881  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
882 882  
883 883  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -904,7 +904,6 @@
904 904  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
905 905  )))
906 906  
907 -
908 908  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
909 909  
910 910  Set DI2 trigger.
... ... @@ -931,10 +931,9 @@
931 931  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
932 932  )))
933 933  
934 -
935 935  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
936 936  
937 -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]]
938 938  
939 939  * AT Command:
940 940  
... ... @@ -947,19 +947,18 @@
947 947  
948 948  (% class="box infomessage" %)
949 949  (((
950 -**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]]**
951 951  )))
952 952  
953 -
954 954  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
955 955  
956 -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]]
957 957  
958 958  * AT Command:
959 959  
960 960  (% class="box infomessage" %)
961 961  (((
962 -**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]]**
963 963  )))
964 964  
965 965  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -966,10 +966,9 @@
966 966  
967 967  (% class="box infomessage" %)
968 968  (((
969 -**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]] **
970 970  )))
971 971  
972 -
973 973  ==== 3.4.2.11 Trigger – Set minimum interval ====
974 974  
975 975  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -988,7 +988,6 @@
988 988  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
989 989  )))
990 990  
991 -
992 992  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
993 993  
994 994  * AT Command:
... ... @@ -1163,13 +1163,13 @@
1163 1163  
1164 1164  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1165 1165  
1166 -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]]
1167 1167  
1168 1168  * AT Command:
1169 1169  
1170 1170  (% class="box infomessage" %)
1171 1171  (((
1172 -**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]]**
1173 1173  )))
1174 1174  
1175 1175  * Downlink Payload (prefix 0xA5):
... ... @@ -1179,7 +1179,6 @@
1179 1179  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1180 1180  )))
1181 1181  
1182 -
1183 1183  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1184 1184  
1185 1185  * AT Command:
... ... @@ -1204,7 +1204,6 @@
1204 1204  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1205 1205  )))
1206 1206  
1207 -
1208 1208  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1209 1209  
1210 1210  Clear counting for counting mode
... ... @@ -1223,7 +1223,6 @@
1223 1223  **0x A6 01     ~/~/ clear all counting,**
1224 1224  )))
1225 1225  
1226 -
1227 1227  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1228 1228  
1229 1229  * AT Command:
... ... @@ -1242,8 +1242,6 @@
1242 1242  
1243 1243  (((
1244 1244  range: aa bb cc:0 to 16777215,  (unit:second)
1245 -
1246 -
1247 1247  )))
1248 1248  
1249 1249  == 3.5 Integrate with Mydevice ==
... ... @@ -1264,7 +1264,6 @@
1264 1264  
1265 1265  [[image:image-20220524094641-12.png||height="402" width="718"]]
1266 1266  
1267 -
1268 1268  **Step 3**: Create an account or log in Mydevices.
1269 1269  
1270 1270  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1273,7 +1273,6 @@
1273 1273  
1274 1274  [[image:1653356838789-523.png||height="337" width="740"]]
1275 1275  
1276 -
1277 1277  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1278 1278  
1279 1279  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1286,7 +1286,6 @@
1286 1286  
1287 1287  [[image:image-20220524094909-5.png||height="341" width="734"]]
1288 1288  
1289 -
1290 1290  == 3.6 Interface Detail ==
1291 1291  
1292 1292  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1295,7 +1295,6 @@
1295 1295  
1296 1296  [[image:1653356991268-289.png]]
1297 1297  
1298 -
1299 1299  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1300 1300  
1301 1301  (((
... ... @@ -1311,105 +1311,51 @@
1311 1311  [[image:1653357170703-587.png]]
1312 1312  
1313 1313  (((
1314 -(((
1315 1315  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1316 1316  )))
1317 -)))
1318 1318  
1319 -(((
1320 -
1321 -)))
1322 1322  
1323 -(((
1324 1324  **Example1**: Connect to a Low active sensor.
1325 -)))
1326 1326  
1327 -(((
1328 1328  This type of sensor will output a low signal GND when active.
1329 -)))
1330 1330  
1331 -* (((
1332 -Connect sensor’s output to DI1-
1333 -)))
1334 -* (((
1335 -Connect sensor’s VCC to DI1+.
1336 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1337 1337  
1338 -(((
1339 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1340 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1341 1341  
1342 -(((
1343 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1344 -)))
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.**
1345 1345  
1346 -(((
1347 -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.
1348 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1349 1349  
1350 -(((
1351 -
1352 -)))
1353 1353  
1354 -(((
1355 1355  **Example2**: Connect to a High active sensor.
1356 -)))
1357 1357  
1358 -(((
1359 1359  This type of sensor will output a high signal (example 24v) when active.
1360 -)))
1361 1361  
1362 -* (((
1363 -Connect sensor’s output to DI1+
1364 -)))
1365 -* (((
1366 -Connect sensor’s GND DI1-.
1367 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* Connect sensor’s GND DI1-.
1368 1368  
1369 -(((
1370 1370  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1371 -)))
1372 1372  
1373 -(((
1374 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1375 -)))
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.**
1376 1376  
1377 -(((
1378 -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.
1379 -)))
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.
1380 1380  
1381 -(((
1382 -
1383 -)))
1384 1384  
1385 -(((
1386 1386  **Example3**: Connect to a 220v high active sensor.
1387 -)))
1388 1388  
1389 -(((
1390 1390  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1391 -)))
1392 1392  
1393 -* (((
1394 -Connect sensor’s output to DI1+ with a serial 50K resistor
1395 -)))
1396 -* (((
1397 -Connect sensor’s GND DI1-.
1398 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1399 1399  
1400 -(((
1401 1401  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1402 -)))
1403 1403  
1404 -(((
1405 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1406 -)))
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.**
1407 1407  
1408 -(((
1409 -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.
1410 -)))
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.
1411 1411  
1412 -
1413 1413  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1414 1414  
1415 1415  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1416,7 +1416,6 @@
1416 1416  
1417 1417  [[image:1653357531600-905.png]]
1418 1418  
1419 -
1420 1420  === 3.6.4 Analog Input Interface ===
1421 1421  
1422 1422  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:
... ... @@ -1444,7 +1444,6 @@
1444 1444  
1445 1445  [[image:1653357648330-671.png||height="155" width="733"]]
1446 1446  
1447 -
1448 1448  === 3.6.5 Relay Output ===
1449 1449  
1450 1450  (((
... ... @@ -1455,12 +1455,10 @@
1455 1455  
1456 1456  [[image:image-20220524100215-10.png||height="382" width="723"]]
1457 1457  
1458 -
1459 1459  == 3.7 LEDs Indicators ==
1460 1460  
1461 1461  [[image:image-20220524100748-11.png]]
1462 1462  
1463 -
1464 1464  = 4. Use AT Command =
1465 1465  
1466 1466  == 4.1 Access AT Command ==
... ... @@ -1661,8 +1661,6 @@
1661 1661  
1662 1662  (((
1663 1663  AT+CFG: Print all settings
1664 -
1665 -
1666 1666  )))
1667 1667  
1668 1668  == 4.2 Common AT Command Sequence ==
... ... @@ -1704,8 +1704,6 @@
1704 1704  
1705 1705  (((
1706 1706  (% style="background-color:#dcdcdc" %)ATZ
1707 -
1708 -
1709 1709  )))
1710 1710  
1711 1711  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1787,7 +1787,6 @@
1787 1787  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1788 1788  ATZ
1789 1789  
1790 -
1791 1791  = 5. FAQ =
1792 1792  
1793 1793  == 5.1 How to upgrade the image? ==
... ... @@ -1818,7 +1818,6 @@
1818 1818  
1819 1819  [[image:1653360054704-518.png||height="186" width="745"]]
1820 1820  
1821 -
1822 1822  (((
1823 1823  (((
1824 1824  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1827,8 +1827,6 @@
1827 1827  
1828 1828  (((
1829 1829  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1830 -
1831 -
1832 1832  )))
1833 1833  
1834 1834  (((
... ... @@ -1882,18 +1882,10 @@
1882 1882  
1883 1883  [[image:1653360498588-932.png||height="485" width="726"]]
1884 1884  
1885 -
1886 1886  == 5.4 Can I see counting event in Serial? ==
1887 1887  
1888 1888  (((
1889 1889  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.
1890 -
1891 -
1892 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1893 -
1894 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1895 -
1896 -
1897 1897  )))
1898 1898  
1899 1899  (((
... ... @@ -1907,8 +1907,11 @@
1907 1907  )))
1908 1908  
1909 1909  (((
1910 -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: [[How it work>>doc:Main.LoRaWAN Communication Debug.H5.1Howitwork]]
1911 1911  
1766 +
1767 +[[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]]
1768 +
1912 1912  
1913 1913  )))
1914 1914  
... ... @@ -1917,7 +1917,9 @@
1917 1917  )))
1918 1918  
1919 1919  (((
1920 -See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1777 +See this link for trouble shooting:
1778 +
1779 +[[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/]]
1921 1921  )))
1922 1922  
1923 1923  (((
... ... @@ -1929,7 +1929,9 @@
1929 1929  )))
1930 1930  
1931 1931  (((
1932 -It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1791 +It might be about the channels mapping. Please see this link for detail:
1792 +
1793 +[[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]]
1933 1933  )))
1934 1934  
1935 1935  (((
... ... @@ -2003,8 +2003,6 @@
2003 2003  (((
2004 2004  * (((
2005 2005  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2006 -
2007 -
2008 2008  )))
2009 2009  
2010 2010  = 8. Packing Info =
... ... @@ -2037,8 +2037,6 @@
2037 2037  * Device Weight: 105g
2038 2038  * Package Size / pcs : 14.5 x 8 x 5 cm
2039 2039  * Weight / pcs : 170g
2040 -
2041 -
2042 2042  )))
2043 2043  )))
2044 2044  
... ... @@ -2060,8 +2060,6 @@
2060 2060  (((
2061 2061  (((
2062 2062   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2063 -
2064 -
2065 2065  )))
2066 2066  
2067 2067  (((
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