Last modified by Saxer Lin on 2025/04/15 17:24
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From version < 82.38 >
edited by Xiaoling
on 2022/06/25 15:11
To version < 90.5 >
edited by Xiaoling
on 2022/08/18 11:57
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... ... @@ -1,7 +1,6 @@
1 1  (% style="text-align:center" %)
2 2  [[image:image-20220523163353-1.jpeg||height="604" width="500"]]
3 3  
4 -**LT-22222-L LoRa IO Controller User Manual **
5 5  
6 6  
7 7  **Table of Contents:**
... ... @@ -42,6 +42,8 @@
42 42  
43 43  (((
44 44  2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.
44 +
45 +
45 45  )))
46 46  
47 47  (((
... ... @@ -173,6 +173,7 @@
173 173  
174 174  == 1.3 Features ==
175 175  
177 +
176 176  * LoRaWAN Class A & Class C protocol
177 177  * Optional Customized LoRa Protocol
178 178  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865
... ... @@ -183,10 +183,9 @@
183 183  
184 184  
185 185  
186 -
187 -
188 188  == 1.4  Applications ==
189 189  
190 +
190 190  * Smart Buildings & Home Automation
191 191  * Logistics and Supply Chain Management
192 192  * Smart Metering
... ... @@ -196,10 +196,9 @@
196 196  
197 197  
198 198  
199 -
200 -
201 201  == 1.5 Hardware Variants ==
202 202  
202 +
203 203  (% border="1" style="background-color:#f7faff; width:500px" %)
204 204  |(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
205 205  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
... ... @@ -214,6 +214,7 @@
214 214  
215 215  = 2. Power ON Device =
216 216  
217 +
217 217  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.
218 218  
219 219  (((
... ... @@ -228,19 +228,24 @@
228 228  
229 229  == 3.1 How it works? ==
230 230  
232 +
231 231  (((
232 -The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on **TX LED** will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. **TX LED** will be on for 5 seconds after joined in network. When there is message from server, the **RX LED** will be on for 1 second. 
234 +The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on (% style="color:green" %)**TX LED**(%%) will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. (% style="color:green" %)**TX LED**(%%) will be on for 5 seconds after joined in network. When there is message from server, the RX LED will be on for 1 second. 
233 233  )))
234 234  
235 235  (((
236 -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.
238 +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.
237 237  )))
238 238  
239 239  
242 +
240 240  == 3.2 Example to join LoRaWAN network ==
241 241  
245 +
242 242  (((
243 243  This chapter shows an example for how to join the TTN LoRaWAN Network. Below is the network structure, we use our LG308 as LoRaWAN gateway here. 
248 +
249 +
244 244  )))
245 245  
246 246  [[image:image-20220523172350-1.png||height="266" width="864"]]
... ... @@ -248,6 +248,8 @@
248 248  
249 249  (((
250 250  The LG308 is already set to connect to [[TTN network >>url:https://www.thethingsnetwork.org/]]. So what we need to do now is only configure register this device to TTN:
257 +
258 +
251 251  )))
252 252  
253 253  (((
... ... @@ -273,6 +273,7 @@
273 273  [[image:1653298023685-319.png]]
274 274  
275 275  
284 +
276 276  (((
277 277  (% style="color:blue" %)**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.
278 278  )))
... ... @@ -283,17 +283,21 @@
283 283  
284 284  == 3.3 Uplink Payload ==
285 285  
295 +
286 286  There are five working modes + one interrupt mode on LT for different type application:
287 287  
288 -* **MOD1**: (default setting): 2 x ACI + 2AVI + DI + DO + RO
289 -* **MOD2**: Double DI Counting + DO + RO
290 -* **MOD3**: Single DI Counting + 2 x ACI + DO + RO
291 -* **MOD4**: Single DI Counting + 1 x Voltage Counting + DO + RO
292 -* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
293 -* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
298 +* (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
299 +* (% style="color:blue" %)**MOD2**(%%): Double DI Counting + DO + RO
300 +* (% style="color:blue" %)**MOD3**(%%): Single DI Counting + 2 x ACI + DO + RO
301 +* (% style="color:blue" %)**MOD4**(%%): Single DI Counting + 1 x Voltage Counting + DO + RO
302 +* (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
303 +* (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
294 294  
305 +
306 +
295 295  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
296 296  
309 +
297 297  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
298 298  
299 299  [[image:image-20220523174024-3.png]]
... ... @@ -345,6 +345,8 @@
345 345  ** DO1 is high in case there is load between DO1 and V+.
346 346  ** DO1 LED is off in both case
347 347  
361 +
362 +
348 348  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
349 349  
350 350  
... ... @@ -413,11 +413,14 @@
413 413  
414 414  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
415 415  
431 +
416 416  **LT22222-L**: This mode the DI1 is used as a counting pin.
417 417  
418 418  [[image:image-20220523181246-5.png]]
419 419  
420 420  (((
437 +
438 +
421 421  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
422 422  )))
423 423  
... ... @@ -431,6 +431,7 @@
431 431  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
432 432  )))
433 433  
452 +
434 434  (((
435 435  **To use counting mode, please run:**
436 436  )))
... ... @@ -563,8 +563,8 @@
563 563  
564 564  For example, if user has configured below commands:
565 565  
566 -* **AT+MOD=1 ** **~-~->** The normal working mode
567 -* **AT+ADDMOD6=1**   **~-~->** Enable trigger
585 +* **AT+MOD=1 ** **~-~->**  The normal working mode
586 +* **AT+ADDMOD6=1**   **~-~->**  Enable trigger
568 568  
569 569  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
570 570  
... ... @@ -573,6 +573,7 @@
573 573  
574 574  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
575 575  
595 +
576 576  (% style="color:#4f81bd" %)**Trigger base on voltage**:
577 577  
578 578  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
... ... @@ -694,14 +694,14 @@
694 694  (((
695 695  
696 696  
697 -**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/]]
698 -
699 -
717 +**Decoder for TTN/loraserver/ChirpStack**:  [[https:~~/~~/www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0>>https://www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0]]
700 700  )))
701 701  
702 702  
721 +
703 703  == 3.4 ​Configure LT via AT or Downlink ==
704 704  
724 +
705 705  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
706 706  
707 707  (((
... ... @@ -712,8 +712,11 @@
712 712  
713 713  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
714 714  
735 +
736 +
715 715  === 3.4.1 Common Commands ===
716 716  
739 +
717 717  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]]
718 718  
719 719  
... ... @@ -720,8 +720,10 @@
720 720  
721 721  === 3.4.2 Sensor related commands ===
722 722  
746 +
723 723  ==== 3.4.2.1 Set Transmit Interval ====
724 724  
749 +
725 725  Set device uplink interval.
726 726  
727 727  * (% style="color:#037691" %)**AT Command:**
... ... @@ -741,6 +741,7 @@
741 741  
742 742  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
743 743  
769 +
744 744  Set work mode.
745 745  
746 746  * (% style="color:#037691" %)**AT Command:**
... ... @@ -760,6 +760,7 @@
760 760  
761 761  ==== 3.4.2.3 Poll an uplink ====
762 762  
789 +
763 763  * (% style="color:#037691" %)**AT Command:**
764 764  
765 765  There is no AT Command to poll uplink
... ... @@ -773,8 +773,10 @@
773 773  
774 774  
775 775  
803 +
776 776  ==== 3.4.2.4 Enable Trigger Mode ====
777 777  
806 +
778 778  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
779 779  
780 780  * (% style="color:#037691" %)**AT Command:**
... ... @@ -795,6 +795,7 @@
795 795  
796 796  ==== 3.4.2.5 Poll trigger settings ====
797 797  
827 +
798 798  Poll trigger settings,
799 799  
800 800  * (% style="color:#037691" %)**AT Command:**
... ... @@ -811,6 +811,7 @@
811 811  
812 812  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
813 813  
844 +
814 814  Enable Disable DI1/DI2/DI2 as trigger,
815 815  
816 816  * (% style="color:#037691" %)**AT Command:**
... ... @@ -831,6 +831,7 @@
831 831  
832 832  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
833 833  
865 +
834 834  Set DI1 or DI3(for LT-33222-L) trigger.
835 835  
836 836  * (% style="color:#037691" %)**AT Command:**
... ... @@ -854,6 +854,7 @@
854 854  
855 855  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
856 856  
889 +
857 857  Set DI2 trigger.
858 858  
859 859  * (% style="color:#037691" %)**AT Command:**
... ... @@ -880,6 +880,7 @@
880 880  
881 881  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
882 882  
916 +
883 883  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
884 884  
885 885  * (% style="color:#037691" %)**AT Command**
... ... @@ -896,6 +896,7 @@
896 896  
897 897  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
898 898  
933 +
899 899  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
900 900  
901 901  * (% style="color:#037691" %)**AT Command**
... ... @@ -912,6 +912,7 @@
912 912  
913 913  ==== 3.4.2.11 Trigger – Set minimum interval ====
914 914  
950 +
915 915  Set AV and AC trigger minimum interval, system won't response to the second trigger within this set time after the first trigger.
916 916  
917 917  * (% style="color:#037691" %)**AT Command**
... ... @@ -923,11 +923,18 @@
923 923  
924 924  **0x AC aa bb   ** ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
925 925  
962 +(((
963 +
926 926  
965 +(% style="color:red" %)Note: ATDC setting must be more than 5min
966 +)))
927 927  
928 928  
969 +
970 +
929 929  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
930 930  
973 +
931 931  * (% style="color:#037691" %)**AT Command**
932 932  
933 933  There is no AT Command to control Digital Output
... ... @@ -959,6 +959,7 @@
959 959  
960 960  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
961 961  
1005 +
962 962  * (% style="color:#037691" %)**AT Command**
963 963  
964 964  There is no AT Command to control Digital Output
... ... @@ -1025,6 +1025,7 @@
1025 1025  
1026 1026  ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1027 1027  
1072 +
1028 1028  * (% style="color:#037691" %)**AT Command:**
1029 1029  
1030 1030  There is no AT Command to control Relay Output
... ... @@ -1054,6 +1054,7 @@
1054 1054  
1055 1055  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1056 1056  
1102 +
1057 1057  * (% style="color:#037691" %)**AT Command:**
1058 1058  
1059 1059  There is no AT Command to control Relay Output
... ... @@ -1077,7 +1077,7 @@
1077 1077  
1078 1078  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1079 1079  
1080 -[[image:image-20220524093831-10.png]]
1126 +[[image:image-20220714135731-1.png||height="406" width="627"]]
1081 1081  
1082 1082  
1083 1083  (% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
... ... @@ -1087,21 +1087,21 @@
1087 1087  
1088 1088  **Example payload:**
1089 1089  
1090 -**~1. 05 01 11 07 D0**
1136 +**~1. 05 01 11 07 D**
1091 1091  
1092 -Relay1 and Relay 2 will be set to NO , last 2 seconds, then change back to original state.
1138 +Relay1 and Relay 2 will be set to NC , last 2 seconds, then change back to original state.
1093 1093  
1094 1094  **2. 05 01 10 07 D0**
1095 1095  
1096 -Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then both change back to original state.
1142 +Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then both change back to original state.
1097 1097  
1098 1098  **3. 05 00 01 07 D0**
1099 1099  
1100 -Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then relay change to NO, Relay2 change to NC.
1146 +Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then relay change to NC,Relay2 change to NO.
1101 1101  
1102 1102  **4. 05 00 00 07 D0**
1103 1103  
1104 -Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1150 +Relay 1 & relay2 will change to NO, last 2 seconds, then both change to NC.
1105 1105  
1106 1106  
1107 1107  
... ... @@ -1108,6 +1108,7 @@
1108 1108  
1109 1109  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1110 1110  
1157 +
1111 1111  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1112 1112  
1113 1113  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1124,6 +1124,7 @@
1124 1124  
1125 1125  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1126 1126  
1174 +
1127 1127  * (% style="color:#037691" %)**AT Command:**
1128 1128  
1129 1129  **AT+SETCNT=aa,(bb cc dd ee) **
... ... @@ -1146,6 +1146,7 @@
1146 1146  
1147 1147  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1148 1148  
1197 +
1149 1149  Clear counting for counting mode
1150 1150  
1151 1151  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1162,6 +1162,7 @@
1162 1162  
1163 1163  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1164 1164  
1214 +
1165 1165  * (% style="color:#037691" %)**AT Command:**
1166 1166  
1167 1167  **AT+COUTIME=60  **~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
... ... @@ -1181,6 +1181,7 @@
1181 1181  
1182 1182  == 3.5 Integrate with Mydevice ==
1183 1183  
1234 +
1184 1184  Mydevices provides a human friendly interface to show the sensor data, once we have data in TTN, we can use Mydevices to connect to TTN and see the data in Mydevices. Below are the steps:
1185 1185  
1186 1186  (((
... ... @@ -1189,14 +1189,15 @@
1189 1189  
1190 1190  (((
1191 1191  (% style="color:blue" %)**Step 2**(%%): To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1243 +
1244 +
1192 1192  )))
1193 1193  
1194 -[[image:1653356737703-362.png||height="232" width="732"]]
1247 +[[image:image-20220719105525-1.png||height="377" width="677"]]
1195 1195  
1196 -[[image:image-20220524094641-11.png||height="390" width="723"]]
1197 1197  
1198 1198  
1199 -[[image:image-20220524094641-12.png||height="402" width="718"]]
1251 +[[image:image-20220719110247-2.png||height="388" width="683"]]
1200 1200  
1201 1201  
1202 1202  (% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
... ... @@ -1229,8 +1229,10 @@
1229 1229  
1230 1230  == 3.6 Interface Detail ==
1231 1231  
1284 +
1232 1232  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1233 1233  
1287 +
1234 1234  Support NPN Type sensor
1235 1235  
1236 1236  [[image:1653356991268-289.png]]
... ... @@ -1239,6 +1239,7 @@
1239 1239  
1240 1240  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1241 1241  
1296 +
1242 1242  (((
1243 1243  The DI port of LT-22222-L can support NPN or PNP output sensor.
1244 1244  )))
... ... @@ -1245,7 +1245,9 @@
1245 1245  
1246 1246  (((
1247 1247  (((
1248 -Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high
1303 +Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high.
1304 +
1305 +
1249 1249  )))
1250 1250  )))
1251 1251  
... ... @@ -1290,6 +1290,8 @@
1290 1290  
1291 1291  (((
1292 1292  
1350 +
1351 +
1293 1293  )))
1294 1294  
1295 1295  (((
... ... @@ -1321,6 +1321,8 @@
1321 1321  
1322 1322  (((
1323 1323  
1383 +
1384 +
1324 1324  )))
1325 1325  
1326 1326  (((
... ... @@ -1354,6 +1354,7 @@
1354 1354  
1355 1355  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1356 1356  
1418 +
1357 1357  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1358 1358  
1359 1359  [[image:1653357531600-905.png]]
... ... @@ -1362,6 +1362,7 @@
1362 1362  
1363 1363  === 3.6.4 Analog Input Interface ===
1364 1364  
1427 +
1365 1365  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:
1366 1366  
1367 1367  
... ... @@ -1393,6 +1393,7 @@
1393 1393  
1394 1394  === 3.6.5 Relay Output ===
1395 1395  
1459 +
1396 1396  (((
1397 1397  The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
1398 1398  )))
... ... @@ -1405,6 +1405,7 @@
1405 1405  
1406 1406  == 3.7 LEDs Indicators ==
1407 1407  
1472 +
1408 1408  [[image:image-20220524100748-11.png]]
1409 1409  
1410 1410  
... ... @@ -1411,8 +1411,10 @@
1411 1411  
1412 1412  = 4. Use AT Command =
1413 1413  
1479 +
1414 1414  == 4.1 Access AT Command ==
1415 1415  
1482 +
1416 1416  LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
1417 1417  
1418 1418  [[image:1653358238933-385.png]]
... ... @@ -1617,6 +1617,7 @@
1617 1617  
1618 1618  == 4.2 Common AT Command Sequence ==
1619 1619  
1687 +
1620 1620  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1621 1621  
1622 1622  (((
... ... @@ -1740,13 +1740,16 @@
1740 1740  
1741 1741  === 4.2.3 Change to Class A ===
1742 1742  
1811 +
1743 1743  If sensor JOINED
1744 1744  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1745 1745  ATZ
1746 1746  
1747 1747  
1817 +
1748 1748  = 5. FAQ =
1749 1749  
1820 +
1750 1750  == 5.1 How to upgrade the image? ==
1751 1751  
1752 1752  
... ... @@ -1768,7 +1768,9 @@
1768 1768  
1769 1769  
1770 1770  (% style="color:blue" %)**For LT-22222-L**(%%):
1771 -Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
1842 +Hold down the PRO button and then momentarily press the RST reset button and the (% style="color:red" %)**DO1 led**(%%) will change from OFF to ON. When (% style="color:red" %)**DO1 LED**(%%) is on, it means the device is in download mode.
1843 +
1844 +
1772 1772  )))
1773 1773  
1774 1774   [[image:image-20220524103407-12.png]]
... ... @@ -1780,6 +1780,7 @@
1780 1780  
1781 1781  (% style="color:red" %)**Notice**(%%): In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1782 1782  
1856 +
1783 1783  [[image:1653360054704-518.png||height="186" width="745"]]
1784 1784  
1785 1785  
... ... @@ -1788,6 +1788,8 @@
1788 1788  
1789 1789  
1790 1790  == 5.2 How to change the LoRa Frequency Bands/Region? ==
1865 +
1866 +
1791 1791  )))
1792 1792  )))
1793 1793  
... ... @@ -1798,7 +1798,10 @@
1798 1798  (((
1799 1799  
1800 1800  
1877 +
1801 1801  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1879 +
1880 +
1802 1802  )))
1803 1803  
1804 1804  (((
... ... @@ -1816,7 +1816,7 @@
1816 1816  )))
1817 1817  
1818 1818  (((
1819 -(% style="color:#4f81bd" %)**Step1**(%%): Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
1898 +(% style="color:blue" %)**Step1**(%%):  Log in TTN, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
1820 1820  )))
1821 1821  
1822 1822  (((
... ... @@ -1824,12 +1824,12 @@
1824 1824  )))
1825 1825  
1826 1826  (((
1827 -(% style="color:red" %)Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.
1906 +(% style="color:red" %)**Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.**
1828 1828  )))
1829 1829  
1830 1830  
1831 1831  (((
1832 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1911 +(% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1833 1833  )))
1834 1834  
1835 1835  (((
... ... @@ -1853,16 +1853,21 @@
1853 1853  [[image:1653360498588-932.png||height="485" width="726"]]
1854 1854  
1855 1855  
1935 +
1856 1856  == 5.4 Can I see counting event in Serial? ==
1857 1857  
1938 +
1858 1858  (((
1859 -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.
1940 +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.
1860 1860  
1861 1861  
1943 +
1862 1862  == 5.5 Can i use point to point communication for LT-22222-L? ==
1863 1863  
1946 +
1864 1864  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1865 1865  
1949 +
1866 1866  
1867 1867  )))
1868 1868  
... ... @@ -1869,6 +1869,7 @@
1869 1869  (((
1870 1870  == 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
1871 1871  
1956 +
1872 1872  If the device is not shut down, but directly powered off.
1873 1873  
1874 1874  It will default that this is a power-off state.
... ... @@ -1878,12 +1878,15 @@
1878 1878  After restart, the status before power failure will be read from flash.
1879 1879  
1880 1880  
1966 +
1881 1881  = 6. Trouble Shooting =
1882 1882  )))
1883 1883  
1884 1884  (((
1885 1885  (((
1886 -== 6.1 Downlink doesn’t work, how to solve it? ==
1972 +== 6.1 Downlink doesn't work, how to solve it? ==
1973 +
1974 +
1887 1887  )))
1888 1888  )))
1889 1889  
... ... @@ -1894,7 +1894,10 @@
1894 1894  (((
1895 1895  
1896 1896  
1985 +
1897 1897  == 6.2 Have trouble to upload image. ==
1987 +
1988 +
1898 1898  )))
1899 1899  
1900 1900  (((
... ... @@ -1904,7 +1904,10 @@
1904 1904  (((
1905 1905  
1906 1906  
1907 -== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1998 +
1999 +== 6.3 Why I can't join TTN in US915 /AU915 bands? ==
2000 +
2001 +
1908 1908  )))
1909 1909  
1910 1910  (((
... ... @@ -1918,21 +1918,21 @@
1918 1918  
1919 1919  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1920 1920  
1921 -
1922 1922  (% style="color:#4f81bd" %)**XXX:**
1923 1923  
1924 -* (% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1925 -* (% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1926 -* (% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1927 -* (% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1928 -* (% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1929 -* (% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1930 -* (% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1931 -* (% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1932 -* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2017 +* (% style="color:red" %)**EU433**(%%):  LT with frequency bands EU433
2018 +* (% style="color:red" %)**EU868**(%%):  LT with frequency bands EU868
2019 +* (% style="color:red" %)**KR920**(%%):  LT with frequency bands KR920
2020 +* (% style="color:red" %)**CN470**(%%):  LT with frequency bands CN470
2021 +* (% style="color:red" %)**AS923**(%%):  LT with frequency bands AS923
2022 +* (% style="color:red" %)**AU915**(%%):  LT with frequency bands AU915
2023 +* (% style="color:red" %)**US915**(%%):  LT with frequency bands US915
2024 +* (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2025 +* (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
1933 1933  
1934 1934  
1935 1935  
2029 +
1936 1936  = 8. Packing Info =
1937 1937  
1938 1938  
... ... @@ -1952,8 +1952,10 @@
1952 1952  
1953 1953  
1954 1954  
2049 +
1955 1955  = 9. Support =
1956 1956  
2052 +
1957 1957  * (((
1958 1958  Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1959 1959  )))
... ... @@ -1962,12 +1962,15 @@
1962 1962  
1963 1963  
1964 1964  
2061 +
1965 1965  
1966 1966  )))
1967 1967  
1968 1968  = 10. Reference​​​​​ =
1969 1969  
2067 +
1970 1970  * LT-22222-L: [[http:~~/~~/www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/156-lt-22222-l.html]]
1971 -* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1972 -* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
2069 +* [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
1973 1973  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2071 +
2072 +
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