Changes for page LT-22222-L -- LoRa I/O Controller User Manual
Last modified by Mengting Qiu on 2025/06/04 18:42
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... ... @@ -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 a n (%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 Commandsand Downlink Command>>doc:Main.End.WebHome]]699 +* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands 754 754 755 755 * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L. User can see these commands below: 756 756 757 - 758 - 759 759 === 3.4.1 Common Commands === 760 760 761 761 They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]] 762 762 763 - 764 - 765 765 === 3.4.2 Sensor related commands === 766 766 767 767 ==== 3.4.2.1 Set Transmit Interval ==== ... ... @@ -784,8 +784,6 @@ 784 784 **0x01 aa bb cc ~/~/ Same as AT+TDC=0x(aa bb cc)** 785 785 ))) 786 786 787 - 788 - 789 789 ==== 3.4.2.2 Set Work Mode (AT+MOD) ==== 790 790 791 791 Set work mode. ... ... @@ -806,8 +806,6 @@ 806 806 **0x0A aa ~/~/ Same as AT+MOD=aa** 807 807 ))) 808 808 809 - 810 - 811 811 ==== 3.4.2.3 Poll an uplink ==== 812 812 813 813 * AT Command: ... ... @@ -823,11 +823,9 @@ 823 823 824 824 **Example**: 0x08FF, ask device to send an Uplink 825 825 826 - 827 - 828 828 ==== 3.4.2.4 Enable Trigger Mode ==== 829 829 830 -Use of trigger mode, please check [[ADDMOD6>> ||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]766 +Use of trigger mode, please check [[ADDMOD6>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]] 831 831 832 832 * AT Command: 833 833 ... ... @@ -847,8 +847,6 @@ 847 847 **0x0A 06 aa ~/~/ Same as AT+ADDMOD6=aa,** 848 848 ))) 849 849 850 - 851 - 852 852 ==== 3.4.2.5 Poll trigger settings ==== 853 853 854 854 Poll trigger settings, ... ... @@ -864,8 +864,6 @@ 864 864 **0xAB 06 ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command** 865 865 ))) 866 866 867 - 868 - 869 869 ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ==== 870 870 871 871 Enable Disable DI1/DI2/DI2 as trigger, ... ... @@ -888,8 +888,6 @@ 888 888 **0xAA 02 aa bb ~/~/ Same as AT+DTRI=aa,bb** 889 889 ))) 890 890 891 - 892 - 893 893 ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ==== 894 894 895 895 Set DI1 or DI3(for LT-33222-L) trigger. ... ... @@ -916,7 +916,6 @@ 916 916 **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)** 917 917 ))) 918 918 919 - 920 920 ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ==== 921 921 922 922 Set DI2 trigger. ... ... @@ -943,10 +943,9 @@ 943 943 **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)** 944 944 ))) 945 945 946 - 947 947 ==== 3.4.2.9 Trigger – Set AC (current) as trigger ==== 948 948 949 -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]] 950 950 951 951 * AT Command: 952 952 ... ... @@ -959,19 +959,18 @@ 959 959 960 960 (% class="box infomessage" %) 961 961 ((( 962 -**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]]** 963 963 ))) 964 964 965 - 966 966 ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ==== 967 967 968 -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]] 969 969 970 970 * AT Command: 971 971 972 972 (% class="box infomessage" %) 973 973 ((( 974 -**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]]** 975 975 ))) 976 976 977 977 * Downlink Payload (prefix 0xAA 00 ): ... ... @@ -978,10 +978,9 @@ 978 978 979 979 (% class="box infomessage" %) 980 980 ((( 981 -**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]] ** 982 982 ))) 983 983 984 - 985 985 ==== 3.4.2.11 Trigger – Set minimum interval ==== 986 986 987 987 Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger. ... ... @@ -1000,7 +1000,6 @@ 1000 1000 **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb) . Unit (min)** 1001 1001 ))) 1002 1002 1003 - 1004 1004 ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ==== 1005 1005 1006 1006 * AT Command: ... ... @@ -1175,13 +1175,13 @@ 1175 1175 1176 1176 ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ==== 1177 1177 1178 -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]] 1179 1179 1180 1180 * AT Command: 1181 1181 1182 1182 (% class="box infomessage" %) 1183 1183 ((( 1184 -**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]]** 1185 1185 ))) 1186 1186 1187 1187 * Downlink Payload (prefix 0xA5): ... ... @@ -1191,7 +1191,6 @@ 1191 1191 **0xA5 aa bb cc ~/~/ Same as AT+VOLMAX=(aa bb),cc** 1192 1192 ))) 1193 1193 1194 - 1195 1195 ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ==== 1196 1196 1197 1197 * AT Command: ... ... @@ -1216,7 +1216,6 @@ 1216 1216 **0x A8 aa bb cc dd ee ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)** 1217 1217 ))) 1218 1218 1219 - 1220 1220 ==== 3.4.2.18 Counting ~-~- Clear Counting ==== 1221 1221 1222 1222 Clear counting for counting mode ... ... @@ -1235,7 +1235,6 @@ 1235 1235 **0x A6 01 ~/~/ clear all counting,** 1236 1236 ))) 1237 1237 1238 - 1239 1239 ==== 3.4.2.19 Counting ~-~- Change counting mode save time ==== 1240 1240 1241 1241 * AT Command: ... ... @@ -1254,8 +1254,6 @@ 1254 1254 1255 1255 ((( 1256 1256 range: aa bb cc:0 to 16777215, (unit:second) 1257 - 1258 - 1259 1259 ))) 1260 1260 1261 1261 == 3.5 Integrate with Mydevice == ... ... @@ -1276,7 +1276,6 @@ 1276 1276 1277 1277 [[image:image-20220524094641-12.png||height="402" width="718"]] 1278 1278 1279 - 1280 1280 **Step 3**: Create an account or log in Mydevices. 1281 1281 1282 1282 **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %) ... ... @@ -1285,7 +1285,6 @@ 1285 1285 1286 1286 [[image:1653356838789-523.png||height="337" width="740"]] 1287 1287 1288 - 1289 1289 After added, the sensor data arrive TTN, it will also arrive and show in Mydevices. 1290 1290 1291 1291 [[image:image-20220524094909-1.png||height="335" width="729"]] ... ... @@ -1298,7 +1298,6 @@ 1298 1298 1299 1299 [[image:image-20220524094909-5.png||height="341" width="734"]] 1300 1300 1301 - 1302 1302 == 3.6 Interface Detail == 1303 1303 1304 1304 === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) === ... ... @@ -1307,7 +1307,6 @@ 1307 1307 1308 1308 [[image:1653356991268-289.png]] 1309 1309 1310 - 1311 1311 === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) === 1312 1312 1313 1313 ((( ... ... @@ -1323,105 +1323,51 @@ 1323 1323 [[image:1653357170703-587.png]] 1324 1324 1325 1325 ((( 1326 -((( 1327 1327 When use need to connect a device to the DI port, both DI1+ and DI1- must be connected. 1328 1328 ))) 1329 -))) 1330 1330 1331 -((( 1332 - 1333 -))) 1334 1334 1335 -((( 1336 1336 **Example1**: Connect to a Low active sensor. 1337 -))) 1338 1338 1339 -((( 1340 1340 This type of sensor will output a low signal GND when active. 1341 -))) 1342 1342 1343 -* ((( 1344 -Connect sensor’s output to DI1- 1345 -))) 1346 -* ((( 1347 -Connect sensor’s VCC to DI1+. 1348 -))) 1250 +* Connect sensor’s output to DI1- 1251 +* Connect sensor’s VCC to DI1+. 1349 1349 1350 -((( 1351 -So when sensor active, the current between NEC2501 pin1 and pin2 is: 1352 -))) 1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is: 1353 1353 1354 -((( 1355 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.** 1356 -))) 1255 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]] = DI1+ / 1K.** 1357 1357 1358 -((( 1359 -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. 1360 -))) 1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal. 1361 1361 1362 -((( 1363 - 1364 -))) 1365 1365 1366 -((( 1367 1367 **Example2**: Connect to a High active sensor. 1368 -))) 1369 1369 1370 -((( 1371 1371 This type of sensor will output a high signal (example 24v) when active. 1372 -))) 1373 1373 1374 -* ((( 1375 -Connect sensor’s output to DI1+ 1376 -))) 1377 -* ((( 1378 -Connect sensor’s GND DI1-. 1379 -))) 1264 +* Connect sensor’s output to DI1+ 1265 +* Connect sensor’s GND DI1-. 1380 1380 1381 -((( 1382 1382 So when sensor active, the current between NEC2501 pin1 and pin2 is: 1383 -))) 1384 1384 1385 -((( 1386 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.** 1387 -))) 1269 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.** 1388 1388 1389 -((( 1390 -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. 1391 -))) 1271 +If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal. 1392 1392 1393 -((( 1394 - 1395 -))) 1396 1396 1397 -((( 1398 1398 **Example3**: Connect to a 220v high active sensor. 1399 -))) 1400 1400 1401 -((( 1402 1402 Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler 1403 -))) 1404 1404 1405 -* ((( 1406 -Connect sensor’s output to DI1+ with a serial 50K resistor 1407 -))) 1408 -* ((( 1409 -Connect sensor’s GND DI1-. 1410 -))) 1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor 1279 +* Connect sensor’s GND DI1-. 1411 1411 1412 -((( 1413 1413 So when sensor active, the current between NEC2501 pin1 and pin2 is: 1414 -))) 1415 1415 1416 -((( 1417 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.** 1418 -))) 1283 + [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.** 1419 1419 1420 -((( 1421 -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. 1422 -))) 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. 1423 1423 1424 - 1425 1425 === 3.6.3 Digital Output Port: DO1/DO2 /DO3 === 1426 1426 1427 1427 NPN output: GND or Float. Max voltage can apply to output pin is 36v. ... ... @@ -1428,7 +1428,6 @@ 1428 1428 1429 1429 [[image:1653357531600-905.png]] 1430 1430 1431 - 1432 1432 === 3.6.4 Analog Input Interface === 1433 1433 1434 1434 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: ... ... @@ -1456,7 +1456,6 @@ 1456 1456 1457 1457 [[image:1653357648330-671.png||height="155" width="733"]] 1458 1458 1459 - 1460 1460 === 3.6.5 Relay Output === 1461 1461 1462 1462 ((( ... ... @@ -1467,12 +1467,10 @@ 1467 1467 1468 1468 [[image:image-20220524100215-10.png||height="382" width="723"]] 1469 1469 1470 - 1471 1471 == 3.7 LEDs Indicators == 1472 1472 1473 1473 [[image:image-20220524100748-11.png]] 1474 1474 1475 - 1476 1476 = 4. Use AT Command = 1477 1477 1478 1478 == 4.1 Access AT Command == ... ... @@ -1673,8 +1673,6 @@ 1673 1673 1674 1674 ((( 1675 1675 AT+CFG: Print all settings 1676 - 1677 - 1678 1678 ))) 1679 1679 1680 1680 == 4.2 Common AT Command Sequence == ... ... @@ -1716,8 +1716,6 @@ 1716 1716 1717 1717 ((( 1718 1718 (% style="background-color:#dcdcdc" %)ATZ 1719 - 1720 - 1721 1721 ))) 1722 1722 1723 1723 === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) === ... ... @@ -1799,7 +1799,6 @@ 1799 1799 (% style="background-color:#dcdcdc" %)AT+CLASS=A 1800 1800 ATZ 1801 1801 1802 - 1803 1803 = 5. FAQ = 1804 1804 1805 1805 == 5.1 How to upgrade the image? == ... ... @@ -1830,7 +1830,6 @@ 1830 1830 1831 1831 [[image:1653360054704-518.png||height="186" width="745"]] 1832 1832 1833 - 1834 1834 ((( 1835 1835 ((( 1836 1836 == 5.2 How to change the LoRa Frequency Bands/Region? == ... ... @@ -1839,8 +1839,6 @@ 1839 1839 1840 1840 ((( 1841 1841 User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download. 1842 - 1843 - 1844 1844 ))) 1845 1845 1846 1846 ((( ... ... @@ -1894,18 +1894,10 @@ 1894 1894 1895 1895 [[image:1653360498588-932.png||height="485" width="726"]] 1896 1896 1897 - 1898 1898 == 5.4 Can I see counting event in Serial? == 1899 1899 1900 1900 ((( 1901 1901 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. 1902 - 1903 - 1904 -== 5.5 Can i use point to point communication for LT-22222-L? == 1905 - 1906 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]] 1907 - 1908 - 1909 1909 ))) 1910 1910 1911 1911 ((( ... ... @@ -1919,8 +1919,10 @@ 1919 1919 ))) 1920 1920 1921 1921 ((( 1922 -Please see this link for how to debug: [[LoRaWANCommunication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]1764 +Please see this link for how to debug: 1923 1923 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 + 1924 1924 1925 1925 ))) 1926 1926 ... ... @@ -1929,7 +1929,9 @@ 1929 1929 ))) 1930 1930 1931 1931 ((( 1932 -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/]] 1933 1933 ))) 1934 1934 1935 1935 ((( ... ... @@ -1941,7 +1941,9 @@ 1941 1941 ))) 1942 1942 1943 1943 ((( 1944 -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]] 1945 1945 ))) 1946 1946 1947 1947 ((( ... ... @@ -2015,8 +2015,6 @@ 2015 2015 ((( 2016 2016 * ((( 2017 2017 (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779 2018 - 2019 - 2020 2020 ))) 2021 2021 2022 2022 = 8. Packing Info = ... ... @@ -2049,8 +2049,6 @@ 2049 2049 * Device Weight: 105g 2050 2050 * Package Size / pcs : 14.5 x 8 x 5 cm 2051 2051 * Weight / pcs : 170g 2052 - 2053 - 2054 2054 ))) 2055 2055 ))) 2056 2056 ... ... @@ -2072,8 +2072,6 @@ 2072 2072 ((( 2073 2073 ((( 2074 2074 [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]] 2075 - 2076 - 2077 2077 ))) 2078 2078 2079 2079 (((
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