Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 82.42 >
edited by Xiaoling
on 2022/06/25 15:24
To version < 90.3 >
edited by Xiaoling
on 2022/08/18 11:46
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Content
... ... @@ -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
... ... @@ -186,6 +186,7 @@
186 186  
187 187  == 1.4  Applications ==
188 188  
191 +
189 189  * Smart Buildings & Home Automation
190 190  * Logistics and Supply Chain Management
191 191  * Smart Metering
... ... @@ -198,6 +198,7 @@
198 198  
199 199  == 1.5 Hardware Variants ==
200 200  
204 +
201 201  (% border="1" style="background-color:#f7faff; width:500px" %)
202 202  |(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
203 203  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
... ... @@ -210,8 +210,10 @@
210 210  )))
211 211  
212 212  
217 +
213 213  = 2. Power ON Device =
214 214  
220 +
215 215  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.
216 216  
217 217  (((
... ... @@ -226,19 +226,24 @@
226 226  
227 227  == 3.1 How it works? ==
228 228  
235 +
229 229  (((
230 -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. 
237 +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. 
231 231  )))
232 232  
233 233  (((
234 -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.
241 +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.
235 235  )))
236 236  
237 237  
245 +
238 238  == 3.2 Example to join LoRaWAN network ==
239 239  
248 +
240 240  (((
241 241  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. 
251 +
252 +
242 242  )))
243 243  
244 244  [[image:image-20220523172350-1.png||height="266" width="864"]]
... ... @@ -246,6 +246,8 @@
246 246  
247 247  (((
248 248  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:
260 +
261 +
249 249  )))
250 250  
251 251  (((
... ... @@ -271,6 +271,7 @@
271 271  [[image:1653298023685-319.png]]
272 272  
273 273  
287 +
274 274  (((
275 275  (% 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.
276 276  )))
... ... @@ -281,21 +281,22 @@
281 281  
282 282  == 3.3 Uplink Payload ==
283 283  
298 +
284 284  There are five working modes + one interrupt mode on LT for different type application:
285 285  
286 -* **MOD1**: (default setting): 2 x ACI + 2AVI + DI + DO + RO
287 -* **MOD2**: Double DI Counting + DO + RO
288 -* **MOD3**: Single DI Counting + 2 x ACI + DO + RO
289 -* **MOD4**: Single DI Counting + 1 x Voltage Counting + DO + RO
290 -* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
291 -* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
301 +* (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
302 +* (% style="color:blue" %)**MOD2**(%%): Double DI Counting + DO + RO
303 +* (% style="color:blue" %)**MOD3**(%%): Single DI Counting + 2 x ACI + DO + RO
304 +* (% style="color:blue" %)**MOD4**(%%): Single DI Counting + 1 x Voltage Counting + DO + RO
305 +* (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
306 +* (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
292 292  
293 293  
294 294  
295 295  
296 -
297 297  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
298 298  
313 +
299 299  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
300 300  
301 301  [[image:image-20220523174024-3.png]]
... ... @@ -332,6 +332,7 @@
332 332  * [1] RO1 relay channel is close and the RO1 LED is ON.
333 333  * [0] RO2 relay channel is open and RO2 LED is OFF;
334 334  
350 +
335 335  **LT22222-L:**
336 336  
337 337  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -350,7 +350,6 @@
350 350  
351 351  
352 352  
353 -
354 354  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
355 355  
356 356  
... ... @@ -419,11 +419,14 @@
419 419  
420 420  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
421 421  
437 +
422 422  **LT22222-L**: This mode the DI1 is used as a counting pin.
423 423  
424 424  [[image:image-20220523181246-5.png]]
425 425  
426 426  (((
443 +
444 +
427 427  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
428 428  )))
429 429  
... ... @@ -437,6 +437,7 @@
437 437  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
438 438  )))
439 439  
458 +
440 440  (((
441 441  **To use counting mode, please run:**
442 442  )))
... ... @@ -569,8 +569,8 @@
569 569  
570 570  For example, if user has configured below commands:
571 571  
572 -* **AT+MOD=1 ** **~-~->** The normal working mode
573 -* **AT+ADDMOD6=1**   **~-~->** Enable trigger
591 +* **AT+MOD=1 ** **~-~->**  The normal working mode
592 +* **AT+ADDMOD6=1**   **~-~->**  Enable trigger
574 574  
575 575  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
576 576  
... ... @@ -579,6 +579,7 @@
579 579  
580 580  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
581 581  
601 +
582 582  (% style="color:#4f81bd" %)**Trigger base on voltage**:
583 583  
584 584  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
... ... @@ -708,6 +708,7 @@
708 708  
709 709  == 3.4 ​Configure LT via AT or Downlink ==
710 710  
731 +
711 711  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
712 712  
713 713  (((
... ... @@ -721,9 +721,9 @@
721 721  
722 722  
723 723  
724 -
725 725  === 3.4.1 Common Commands ===
726 726  
747 +
727 727  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]]
728 728  
729 729  
... ... @@ -730,8 +730,10 @@
730 730  
731 731  === 3.4.2 Sensor related commands ===
732 732  
754 +
733 733  ==== 3.4.2.1 Set Transmit Interval ====
734 734  
757 +
735 735  Set device uplink interval.
736 736  
737 737  * (% style="color:#037691" %)**AT Command:**
... ... @@ -751,6 +751,7 @@
751 751  
752 752  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
753 753  
777 +
754 754  Set work mode.
755 755  
756 756  * (% style="color:#037691" %)**AT Command:**
... ... @@ -770,6 +770,7 @@
770 770  
771 771  ==== 3.4.2.3 Poll an uplink ====
772 772  
797 +
773 773  * (% style="color:#037691" %)**AT Command:**
774 774  
775 775  There is no AT Command to poll uplink
... ... @@ -783,8 +783,10 @@
783 783  
784 784  
785 785  
811 +
786 786  ==== 3.4.2.4 Enable Trigger Mode ====
787 787  
814 +
788 788  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
789 789  
790 790  * (% style="color:#037691" %)**AT Command:**
... ... @@ -805,6 +805,7 @@
805 805  
806 806  ==== 3.4.2.5 Poll trigger settings ====
807 807  
835 +
808 808  Poll trigger settings,
809 809  
810 810  * (% style="color:#037691" %)**AT Command:**
... ... @@ -821,6 +821,7 @@
821 821  
822 822  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
823 823  
852 +
824 824  Enable Disable DI1/DI2/DI2 as trigger,
825 825  
826 826  * (% style="color:#037691" %)**AT Command:**
... ... @@ -841,6 +841,7 @@
841 841  
842 842  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
843 843  
873 +
844 844  Set DI1 or DI3(for LT-33222-L) trigger.
845 845  
846 846  * (% style="color:#037691" %)**AT Command:**
... ... @@ -861,8 +861,11 @@
861 861  * **0x09 01 aa bb cc    ** ~/~/ same as AT+TRIG1=aa,0x(bb cc)
862 862  
863 863  
894 +
895 +
864 864  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
865 865  
898 +
866 866  Set DI2 trigger.
867 867  
868 868  * (% style="color:#037691" %)**AT Command:**
... ... @@ -889,6 +889,7 @@
889 889  
890 890  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
891 891  
925 +
892 892  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
893 893  
894 894  * (% style="color:#037691" %)**AT Command**
... ... @@ -905,6 +905,7 @@
905 905  
906 906  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
907 907  
942 +
908 908  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
909 909  
910 910  * (% style="color:#037691" %)**AT Command**
... ... @@ -921,6 +921,7 @@
921 921  
922 922  ==== 3.4.2.11 Trigger – Set minimum interval ====
923 923  
959 +
924 924  Set AV and AC trigger minimum interval, system won't response to the second trigger within this set time after the first trigger.
925 925  
926 926  * (% style="color:#037691" %)**AT Command**
... ... @@ -932,11 +932,18 @@
932 932  
933 933  **0x AC aa bb   ** ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
934 934  
971 +(((
972 +
935 935  
974 +(% style="color:red" %)Note: ATDC setting must be more than 5min
975 +)))
936 936  
937 937  
978 +
979 +
938 938  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
939 939  
982 +
940 940  * (% style="color:#037691" %)**AT Command**
941 941  
942 942  There is no AT Command to control Digital Output
... ... @@ -968,6 +968,7 @@
968 968  
969 969  ==== 3.4.2.13 DO ~-~- Control Digital Output DO1/DO2/DO3 with time control ====
970 970  
1014 +
971 971  * (% style="color:#037691" %)**AT Command**
972 972  
973 973  There is no AT Command to control Digital Output
... ... @@ -1034,6 +1034,7 @@
1034 1034  
1035 1035  ==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1036 1036  
1081 +
1037 1037  * (% style="color:#037691" %)**AT Command:**
1038 1038  
1039 1039  There is no AT Command to control Relay Output
... ... @@ -1063,6 +1063,7 @@
1063 1063  
1064 1064  ==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1065 1065  
1111 +
1066 1066  * (% style="color:#037691" %)**AT Command:**
1067 1067  
1068 1068  There is no AT Command to control Relay Output
... ... @@ -1086,7 +1086,7 @@
1086 1086  
1087 1087  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1088 1088  
1089 -[[image:image-20220524093831-10.png]]
1135 +[[image:image-20220714135731-1.png||height="406" width="627"]]
1090 1090  
1091 1091  
1092 1092  (% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
... ... @@ -1096,21 +1096,21 @@
1096 1096  
1097 1097  **Example payload:**
1098 1098  
1099 -**~1. 05 01 11 07 D0**
1145 +**~1. 05 01 11 07 D**
1100 1100  
1101 -Relay1 and Relay 2 will be set to NO , last 2 seconds, then change back to original state.
1147 +Relay1 and Relay 2 will be set to NC , last 2 seconds, then change back to original state.
1102 1102  
1103 1103  **2. 05 01 10 07 D0**
1104 1104  
1105 -Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then both change back to original state.
1151 +Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then both change back to original state.
1106 1106  
1107 1107  **3. 05 00 01 07 D0**
1108 1108  
1109 -Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then relay change to NO, Relay2 change to NC.
1155 +Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then relay change to NC,Relay2 change to NO.
1110 1110  
1111 1111  **4. 05 00 00 07 D0**
1112 1112  
1113 -Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1159 +Relay 1 & relay2 will change to NO, last 2 seconds, then both change to NC.
1114 1114  
1115 1115  
1116 1116  
... ... @@ -1117,6 +1117,7 @@
1117 1117  
1118 1118  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1119 1119  
1166 +
1120 1120  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1121 1121  
1122 1122  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1133,6 +1133,7 @@
1133 1133  
1134 1134  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1135 1135  
1183 +
1136 1136  * (% style="color:#037691" %)**AT Command:**
1137 1137  
1138 1138  **AT+SETCNT=aa,(bb cc dd ee) **
... ... @@ -1155,6 +1155,7 @@
1155 1155  
1156 1156  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1157 1157  
1206 +
1158 1158  Clear counting for counting mode
1159 1159  
1160 1160  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1171,6 +1171,7 @@
1171 1171  
1172 1172  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1173 1173  
1223 +
1174 1174  * (% style="color:#037691" %)**AT Command:**
1175 1175  
1176 1176  **AT+COUTIME=60  **~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
... ... @@ -1190,6 +1190,7 @@
1190 1190  
1191 1191  == 3.5 Integrate with Mydevice ==
1192 1192  
1243 +
1193 1193  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:
1194 1194  
1195 1195  (((
... ... @@ -1198,14 +1198,15 @@
1198 1198  
1199 1199  (((
1200 1200  (% 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:
1252 +
1253 +
1201 1201  )))
1202 1202  
1203 -[[image:1653356737703-362.png||height="232" width="732"]]
1256 +[[image:image-20220719105525-1.png||height="377" width="677"]]
1204 1204  
1205 -[[image:image-20220524094641-11.png||height="390" width="723"]]
1206 1206  
1207 1207  
1208 -[[image:image-20220524094641-12.png||height="402" width="718"]]
1260 +[[image:image-20220719110247-2.png||height="388" width="683"]]
1209 1209  
1210 1210  
1211 1211  (% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
... ... @@ -1238,8 +1238,10 @@
1238 1238  
1239 1239  == 3.6 Interface Detail ==
1240 1240  
1293 +
1241 1241  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1242 1242  
1296 +
1243 1243  Support NPN Type sensor
1244 1244  
1245 1245  [[image:1653356991268-289.png]]
... ... @@ -1248,6 +1248,7 @@
1248 1248  
1249 1249  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1250 1250  
1305 +
1251 1251  (((
1252 1252  The DI port of LT-22222-L can support NPN or PNP output sensor.
1253 1253  )))
... ... @@ -1254,7 +1254,9 @@
1254 1254  
1255 1255  (((
1256 1256  (((
1257 -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
1312 +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.
1313 +
1314 +
1258 1258  )))
1259 1259  )))
1260 1260  
... ... @@ -1299,6 +1299,8 @@
1299 1299  
1300 1300  (((
1301 1301  
1359 +
1360 +
1302 1302  )))
1303 1303  
1304 1304  (((
... ... @@ -1330,6 +1330,8 @@
1330 1330  
1331 1331  (((
1332 1332  
1392 +
1393 +
1333 1333  )))
1334 1334  
1335 1335  (((
... ... @@ -1363,6 +1363,7 @@
1363 1363  
1364 1364  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1365 1365  
1427 +
1366 1366  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1367 1367  
1368 1368  [[image:1653357531600-905.png]]
... ... @@ -1371,6 +1371,7 @@
1371 1371  
1372 1372  === 3.6.4 Analog Input Interface ===
1373 1373  
1436 +
1374 1374  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:
1375 1375  
1376 1376  
... ... @@ -1402,6 +1402,7 @@
1402 1402  
1403 1403  === 3.6.5 Relay Output ===
1404 1404  
1468 +
1405 1405  (((
1406 1406  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:
1407 1407  )))
... ... @@ -1414,6 +1414,7 @@
1414 1414  
1415 1415  == 3.7 LEDs Indicators ==
1416 1416  
1481 +
1417 1417  [[image:image-20220524100748-11.png]]
1418 1418  
1419 1419  
... ... @@ -1420,8 +1420,10 @@
1420 1420  
1421 1421  = 4. Use AT Command =
1422 1422  
1488 +
1423 1423  == 4.1 Access AT Command ==
1424 1424  
1491 +
1425 1425  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.
1426 1426  
1427 1427  [[image:1653358238933-385.png]]
... ... @@ -1626,6 +1626,7 @@
1626 1626  
1627 1627  == 4.2 Common AT Command Sequence ==
1628 1628  
1696 +
1629 1629  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1630 1630  
1631 1631  (((
... ... @@ -1749,13 +1749,16 @@
1749 1749  
1750 1750  === 4.2.3 Change to Class A ===
1751 1751  
1820 +
1752 1752  If sensor JOINED
1753 1753  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1754 1754  ATZ
1755 1755  
1756 1756  
1826 +
1757 1757  = 5. FAQ =
1758 1758  
1829 +
1759 1759  == 5.1 How to upgrade the image? ==
1760 1760  
1761 1761  
... ... @@ -1777,7 +1777,9 @@
1777 1777  
1778 1778  
1779 1779  (% style="color:blue" %)**For LT-22222-L**(%%):
1780 -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.
1851 +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.
1852 +
1853 +
1781 1781  )))
1782 1782  
1783 1783   [[image:image-20220524103407-12.png]]
... ... @@ -1789,6 +1789,7 @@
1789 1789  
1790 1790  (% 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:
1791 1791  
1865 +
1792 1792  [[image:1653360054704-518.png||height="186" width="745"]]
1793 1793  
1794 1794  
... ... @@ -1797,6 +1797,8 @@
1797 1797  
1798 1798  
1799 1799  == 5.2 How to change the LoRa Frequency Bands/Region? ==
1874 +
1875 +
1800 1800  )))
1801 1801  )))
1802 1802  
... ... @@ -1807,7 +1807,10 @@
1807 1807  (((
1808 1808  
1809 1809  
1886 +
1810 1810  == 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1888 +
1889 +
1811 1811  )))
1812 1812  
1813 1813  (((
... ... @@ -1825,7 +1825,7 @@
1825 1825  )))
1826 1826  
1827 1827  (((
1828 -(% 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.
1907 +(% 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.
1829 1829  )))
1830 1830  
1831 1831  (((
... ... @@ -1833,12 +1833,12 @@
1833 1833  )))
1834 1834  
1835 1835  (((
1836 -(% 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.
1915 +(% 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.**
1837 1837  )))
1838 1838  
1839 1839  
1840 1840  (((
1841 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1920 +(% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1842 1842  )))
1843 1843  
1844 1844  (((
... ... @@ -1862,16 +1862,21 @@
1862 1862  [[image:1653360498588-932.png||height="485" width="726"]]
1863 1863  
1864 1864  
1944 +
1865 1865  == 5.4 Can I see counting event in Serial? ==
1866 1866  
1947 +
1867 1867  (((
1868 -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.
1949 +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.
1869 1869  
1870 1870  
1952 +
1871 1871  == 5.5 Can i use point to point communication for LT-22222-L? ==
1872 1872  
1955 +
1873 1873  Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1874 1874  
1958 +
1875 1875  
1876 1876  )))
1877 1877  
... ... @@ -1878,6 +1878,7 @@
1878 1878  (((
1879 1879  == 5.6 Why does the relay output become the default and open relay after the lt22222 is powered off? ==
1880 1880  
1965 +
1881 1881  If the device is not shut down, but directly powered off.
1882 1882  
1883 1883  It will default that this is a power-off state.
... ... @@ -1887,12 +1887,15 @@
1887 1887  After restart, the status before power failure will be read from flash.
1888 1888  
1889 1889  
1975 +
1890 1890  = 6. Trouble Shooting =
1891 1891  )))
1892 1892  
1893 1893  (((
1894 1894  (((
1895 -== 6.1 Downlink doesn’t work, how to solve it? ==
1981 +== 6.1 Downlink doesn't work, how to solve it? ==
1982 +
1983 +
1896 1896  )))
1897 1897  )))
1898 1898  
... ... @@ -1903,7 +1903,10 @@
1903 1903  (((
1904 1904  
1905 1905  
1994 +
1906 1906  == 6.2 Have trouble to upload image. ==
1996 +
1997 +
1907 1907  )))
1908 1908  
1909 1909  (((
... ... @@ -1913,7 +1913,10 @@
1913 1913  (((
1914 1914  
1915 1915  
1916 -== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
2007 +
2008 +== 6.3 Why I can't join TTN in US915 /AU915 bands? ==
2009 +
2010 +
1917 1917  )))
1918 1918  
1919 1919  (((
... ... @@ -1921,24 +1921,28 @@
1921 1921  )))
1922 1922  
1923 1923  
2018 +
1924 1924  = 7. Order Info =
1925 1925  
2021 +
1926 1926  (% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1927 1927  
1928 -
1929 1929  (% style="color:#4f81bd" %)**XXX:**
1930 1930  
1931 -* (% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1932 -* (% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1933 -* (% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1934 -* (% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1935 -* (% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1936 -* (% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1937 -* (% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1938 -* (% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1939 -* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2026 +* (% style="color:red" %)**EU433**(%%):  LT with frequency bands EU433
2027 +* (% style="color:red" %)**EU868**(%%):  LT with frequency bands EU868
2028 +* (% style="color:red" %)**KR920**(%%):  LT with frequency bands KR920
2029 +* (% style="color:red" %)**CN470**(%%):  LT with frequency bands CN470
2030 +* (% style="color:red" %)**AS923**(%%):  LT with frequency bands AS923
2031 +* (% style="color:red" %)**AU915**(%%):  LT with frequency bands AU915
2032 +* (% style="color:red" %)**US915**(%%):  LT with frequency bands US915
2033 +* (% style="color:red" %)**IN865**(%%):  LT with frequency bands IN865
2034 +* (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
1940 1940  
1941 1941  
2037 +
2038 +
2039 +
1942 1942  = 8. Packing Info =
1943 1943  
1944 1944  
... ... @@ -1957,8 +1957,12 @@
1957 1957  * Weight / pcs : 170g
1958 1958  
1959 1959  
2058 +
2059 +
2060 +
1960 1960  = 9. Support =
1961 1961  
2063 +
1962 1962  * (((
1963 1963  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.
1964 1964  )))
... ... @@ -1967,12 +1967,17 @@
1967 1967  
1968 1968  
1969 1969  
2072 +
1970 1970  
1971 1971  )))
1972 1972  
1973 1973  = 10. Reference​​​​​ =
1974 1974  
2078 +
1975 1975  * 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]]
1976 1976  * [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1977 1977  * [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1978 1978  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2083 +
2084 +
2085 +
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