Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 8.2 >
edited by Xiaoling
on 2022/05/23 17:26
To version < 13.5 >
edited by Xiaoling
on 2022/05/23 17:55
>
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Summary

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Content
... ... @@ -43,7 +43,7 @@
43 43  **Hardware System:**
44 44  
45 45  * STM32L072CZT6 MCU
46 -* SX1276/78 Wireless Chip
46 +* SX1276/78 Wireless Chip 
47 47  * Power Consumption:
48 48  ** Idle: 4mA@12v
49 49  ** 20dB Transmit: 34mA@12v
... ... @@ -55,7 +55,7 @@
55 55  * 2 x Relay Output (5A@250VAC / 30VDC)
56 56  * 2 x 0~~20mA Analog Input (res:0.01mA)
57 57  * 2 x 0~~30V Analog Input (res:0.01v)
58 -* Power Input 7~~ 24V DC.
58 +* Power Input 7~~ 24V DC. 
59 59  
60 60  **LoRa Spec:**
61 61  
... ... @@ -99,7 +99,7 @@
99 99  
100 100  == 1.5 Hardware Variants ==
101 101  
102 -(% border="1" style="background-color:#f7faff; width:540px" %)
102 +(% border="1" style="background-color:#f7faff; width:500px" %)
103 103  |(% style="width:103px" %)**Model**|(% style="width:131px" %)**Photo**|(% style="width:334px" %)**Description**
104 104  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)[[image:1653296302983-697.png]]|(% style="width:334px" %)(((
105 105  * 2 x Digital Input (Bi-direction)
... ... @@ -122,7 +122,7 @@
122 122  
123 123  = 3. Operation Mode =
124 124  
125 -== 3.1 How it works? ==
125 +== 3.1 How it works? ==
126 126  
127 127  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. 
128 128  
... ... @@ -130,7 +130,7 @@
130 130  
131 131  3.2 Example to join LoRaWAN network
132 132  
133 -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.
133 +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. 
134 134  
135 135  [[image:image-20220523172350-1.png||height="266" width="864"]]
136 136  
... ... @@ -153,66 +153,39 @@
153 153  
154 154  Add APP EUI in the application.
155 155  
156 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image007.png]][[image:1653297955910-247.png||height="321" width="716"]]
156 +[[image:1653297955910-247.png||height="321" width="716"]]
157 157  
158 158  Add APP KEY and DEV EUI
159 159  
160 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image008.png]]
160 +[[image:1653298023685-319.png]]
161 161  
162 +(((
162 162  **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.
164 +)))
163 163  
164 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image009.png]]
166 +[[image:1653298044601-602.png||height="405" width="709"]]
165 165  
168 +== 3.3 Uplink Payload ==
166 166  
167 -1.
168 -11. Uplink Payload
169 -
170 170  There are five working modes + one interrupt mode on LT for different type application:
171 171  
172 -* [[MOD1>>path:#MOD1]]: (default setting): 2 x ACI + 2AVI + DI + DO + RO
173 -* [[MOD2>>path:#MOD2]]: Double DI Counting + DO + RO
174 -* [[MOD3>>path:#MOD3]]: Single DI Counting + 2 x ACI + DO + RO
175 -* [[MOD4>>path:#MOD4]]: Single DI Counting + 1 x Voltage Counting + DO + RO
176 -* [[MOD5>>path:#MOD5]]: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
177 -* [[ADDMOD6>>path:#MOD6]]: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
172 +* **MOD1**: (default setting): 2 x ACI + 2AVI + DI + DO + RO
173 +* **MOD2**: Double DI Counting + DO + RO
174 +* **MOD3**: Single DI Counting + 2 x ACI + DO + RO
175 +* **MOD4**: Single DI Counting + 1 x Voltage Counting + DO + RO
176 +* **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
177 +* **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
178 178  
179 +=== 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
179 179  
180 -1.
181 -11.
182 -111. AT+MOD=1, 2ACI+2AVI
183 -
184 184  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
185 185  
183 +[[image:image-20220523174024-3.png]]
186 186  
187 -|Size(bytes)|2|2|2|2|1|1|1
188 -|Value|(((
189 -AVI1
185 +(% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
190 190  
191 -voltage
192 -)))|(((
193 -AVI2
187 +[[image:image-20220523174254-4.png]]
194 194  
195 -voltage
196 -)))|(((
197 -ACI1
198 -
199 -Current
200 -)))|(((
201 -ACI2
202 -
203 -Current
204 -)))|DIDORO*|(((
205 -Reserve
206 -
207 -
208 -)))|MOD
209 -
210 -
211 -**DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
212 -
213 -|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
214 -|RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
215 -
216 216  * RO is for relay. ROx=1 : close，ROx=0 always open.
217 217  * DI is for digital input. DIx=1: high or float, DIx=0: low.
218 218  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
... ... @@ -222,7 +222,7 @@
222 222  
223 223  For example if payload is: 04 AB 04 AC 13 10 13 00 AA FF 01
224 224  
225 -The value for the interface is:
198 +The value for the interface is: 
226 226  
227 227  AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
228 228  
... ... @@ -248,7 +248,6 @@
248 248  * [1] DI2 channel is high input and DI2 LED is ON;
249 249  * [0] DI1 channel is low input;
250 250  
251 -
252 252  * [0] DO3 channel output state
253 253  ** DO3 is float in case no load between DO3 and V+.;
254 254  ** DO3 is high in case there is load between DO3 and V+.
... ... @@ -260,9 +260,8 @@
260 260  ** DO1 LED is off in both case
261 261  
262 262  
263 -
264 -1.
265 -11.
235 +1.
236 +11.
266 266  111. AT+MOD=2, (Double DI Counting)
267 267  
268 268  **For LT-33222-L**: this mode the **DI3** is used as a counting pin. Counting on DI3 reflect in COUNT1.
... ... @@ -272,6 +272,7 @@
272 272  
273 273  Total : 11 bytes payload
274 274  
246 +(% border="1" style="background-color:#f7faff; height:10px; width:500px" %)
275 275  |Size(bytes)|4|4|1|1|1
276 276  |Value|COUNT1|COUNT2 |DIDORO*|(((
277 277  Reserve
... ... @@ -279,9 +279,9 @@
279 279  
280 280  )))|MOD
281 281  
282 -
283 283  **DIDORO** is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
284 284  
256 +(% border="1" style="background-color:#f7faff" %)
285 285  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
286 286  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
287 287  
... ... @@ -334,8 +334,8 @@
334 334  
335 335  
336 336  
337 -1.
338 -11.
309 +1.
310 +11.
339 339  111. AT+MOD=3, Single DI Counting + 2 x ACI
340 340  
341 341  **LT33222-L**: This mode the DI3 is used as a counting pin.
... ... @@ -343,6 +343,7 @@
343 343  **LT22222-L**: This mode the DI1 is used as a counting pin.
344 344  
345 345  
318 +(% border="1" style="background-color:#f7faff" %)
346 346  |Size(bytes)|4|2|2|1|1|1
347 347  |Value|COUNT1|(((
348 348  ACI1
... ... @@ -354,9 +354,9 @@
354 354  Current
355 355  )))|DIDORO*|Reserve|MOD
356 356  
357 -
358 358  **DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
359 359  
332 +(% border="1" style="background-color:#f7faff" %)
360 360  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
361 361  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
362 362  
... ... @@ -379,8 +379,8 @@
379 379  
380 380  
381 381  
382 -1.
383 -11.
355 +1.
356 +11.
384 384  111. AT+MOD=4, Single DI Counting + 1 x Voltage Counting
385 385  
386 386  **LT33222-L**: This mode the DI3 is used as a counting pin.
... ... @@ -391,6 +391,7 @@
391 391  The AVI1 is also used for counting. AVI1 is used to monitor the voltage. It will check the voltage **every 60s**, if voltage is higher or lower than VOLMAX mV, the AVI1 Counting increase 1, so AVI1 counting can be used to measure a machine working hour.
392 392  
393 393  
367 +(% border="1" style="background-color:#f7faff" %)
394 394  |Size(bytes)|4|4|1|1|1
395 395  |Value|COUNT1|AVI1 Counting|DIDORO*|(((
396 396  Reserve
... ... @@ -398,9 +398,9 @@
398 398  
399 399  )))|MOD
400 400  
401 -
402 402  **DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
403 403  
377 +(% border="1" style="background-color:#f7faff" %)
404 404  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
405 405  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
406 406  
... ... @@ -433,16 +433,16 @@
433 433  
434 434  
435 435  
436 -1.
437 -11.
410 +1.
411 +11.
438 438  111. AT+MOD=5, Single DI Counting + 2 x AVI + 1 x ACI
439 439  
440 -
441 441  **LT33222-L**: This mode the DI3 is used as a counting pin.
442 442  
443 443  **LT22222-L**: This mode the DI1 is used as a counting pin.
444 444  
445 445  
419 +(% border="1" style="background-color:#f7faff" %)
446 446  |Size(bytes)|2|2|2|2|1|1|1
447 447  |Value|(((
448 448  AVI1
... ... @@ -463,9 +463,9 @@
463 463  )))|MOD
464 464  
465 465  
466 -
467 467  **DIDORO** is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
468 468  
442 +(% border="1" style="background-color:#f7faff" %)
469 469  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
470 470  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
471 471  
... ... @@ -489,11 +489,10 @@
489 489  
490 490  
491 491  
492 -1.
493 -11.
466 +1.
467 +11.
494 494  111. AT+ADDMOD=6. (Trigger Mode, Optional)
495 495  
496 -
497 497  **This mode is an optional mode for trigger purpose. It can run together with other mode.**
498 498  
499 499  For example, if user has configured below commands:
... ... @@ -501,13 +501,11 @@
501 501  * AT+MOD=1   à The normal working mode
502 502  * AT+ADDMOD6=1    à Enable trigger
503 503  
504 -
505 505  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
506 506  
507 507  1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN **unconfirmed** data type
508 508  1. Trigger uplink when meet the trigger condition. LT will sent two packets in this case, the first uplink use payload specify in this mod (mod=6), the second packets use the normal mod payload(MOD=1 for above settings). Both Uplinks use LoRaWAN **CONFIRMED data type.**
509 509  
510 -
511 511  **AT Command to set Trigger Condition**:
512 512  
513 513  **Trigger base on voltage**:
... ... @@ -578,6 +578,7 @@
578 578  
579 579  MOD6 Payload : total 11 bytes payload
580 580  
552 +(% border="1" style="background-color:#f7faff" %)
581 581  |Size(bytes)|1|1|1|6|1|1
582 582  |Value|(((
583 583  TRI_A
... ... @@ -598,9 +598,9 @@
598 598  )))
599 599  
600 600  
601 -
602 602  **TRI FLAG1** is a combination to show if trigger is set for this part. Totally 1byte as below
603 603  
575 +(% border="1" style="background-color:#f7faff" %)
604 604  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
605 605  |(((
606 606  AV1_
... ... @@ -645,6 +645,7 @@
645 645  
646 646  **TRI Status1** is a combination to show which condition is trigger. Totally 1byte as below
647 647  
620 +(% border="1" style="background-color:#f7faff" %)
648 648  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
649 649  |(((
650 650  AV1_
... ... @@ -691,6 +691,7 @@
691 691  
692 692  **TRI_DI FLAG+STA **is a combination to show which condition is trigger. Totally 1byte as below
693 693  
667 +(% border="1" style="background-color:#f7faff" %)
694 694  |bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
695 695  |N/A|N/A|N/A|N/A|DI2_STATUS|DI2_FLAG|DI1_STATUS|DI1_FLAG
696 696  
... ... @@ -713,11 +713,10 @@
713 713  When device got this command, it will send the MOD6 payload.
714 714  
715 715  
716 -1.
717 -11.
690 +1.
691 +11.
718 718  111. Payload Decoder
719 719  
720 -
721 721  **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/]]
722 722  
723 723  
... ... @@ -726,7 +726,7 @@
726 726  
727 727  
728 728  
729 -1.
702 +1.
730 730  11. ​Configure LT via AT or Downlink
731 731  
732 732  User can configure LT I/O Controller via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
... ... @@ -737,20 +737,17 @@
737 737  
738 738  * **Sensor Related Commands**: These commands are special designed for LT-22222-L.  User can see these commands below:
739 739  
740 -
741 -1.
742 -11.
713 +1.
714 +11.
743 743  111. Common Commands:
744 744  
745 -
746 746  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: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
747 747  
748 748  
749 -1.
750 -11.
720 +1.
721 +11.
751 751  111. Sensor related commands:
752 752  
753 -
754 754  ==== Set Transmit Interval ====
755 755  
756 756  Set device uplink interval.
... ... @@ -950,6 +950,7 @@
950 950  
951 951  01: Low,  00: High ,  11: No action
952 952  
923 +(% border="1" style="background-color:#f7faff" %)
953 953  |Downlink Code|DO1|DO2|DO3
954 954  |02  01  00  11|Low|High|No Action
955 955  |02  00  11  01|High|No Action|Low
... ... @@ -987,22 +987,23 @@
987 987  
988 988  **Third Byte**: Control Method and Ports status:
989 989  
961 +(% border="1" style="background-color:#f7faff" %)
990 990  |Second Byte|Status
991 991  |0x01|DO1 set to low
992 992  |0x00|DO1 set to high
993 993  |0x11|DO1 NO Action
994 994  
995 -
996 996  **Fourth Byte**: Control Method and Ports status:
997 997  
969 +(% border="1" style="background-color:#f7faff" %)
998 998  |Second Byte|Status
999 999  |0x01|DO2 set to low
1000 1000  |0x00|DO2 set to high
1001 1001  |0x11|DO2 NO Action
1002 1002  
1003 -
1004 1004  **Fifth Byte**: Control Method and Ports status:
1005 1005  
977 +(% border="1" style="background-color:#f7faff" %)
1006 1006  |Second Byte|Status
1007 1007  |0x01|DO3 set to low
1008 1008  |0x00|DO3 set to high
... ... @@ -1055,6 +1055,7 @@
1055 1055  
1056 1056  01: Close ,  00: Open , 11: No action
1057 1057  
1030 +(% border="1" style="background-color:#f7faff" %)
1058 1058  |Downlink Code|RO1|RO2
1059 1059  |03  00  11|Open|No Action
1060 1060  |03  01  11|Close|No Action
... ... @@ -1092,6 +1092,7 @@
1092 1092  
1093 1093  **Third Byte(bb)**: Control Method and Ports status:
1094 1094  
1068 +(% border="1" style="background-color:#f7faff" %)
1095 1095  |Value|Status
1096 1096  |0x11|RO1 and RO2 to NO
1097 1097  |0x10|RO2 to NO, RO1 to NC
... ... @@ -1102,7 +1102,6 @@
1102 1102  |0x02|RO1 to NC, RO2 No Action
1103 1103  |0x12|RO1 to NO, RO2 No Action
1104 1104  
1105 -
1106 1106  **Fourth / Fifth Bytes (cc)**: Latching time. Unit: ms
1107 1107  
1108 1108  Device will upload a packet if downlink code executes successfully.
... ... @@ -1204,10 +1204,9 @@
1204 1204  
1205 1205  
1206 1206  
1207 -1.
1180 +1.
1208 1208  11. Integrate with Mydevice
1209 1209  
1210 -
1211 1211  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:
1212 1212  
1213 1213  
... ... @@ -1252,7 +1252,7 @@
1252 1252  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
1253 1253  
1254 1254  
1255 -1.
1227 +1.
1256 1256  11. Interface Detail
1257 1257  111. Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active )
1258 1258  
... ... @@ -1262,8 +1262,8 @@
1262 1262  
1263 1263  
1264 1264  
1265 -1.
1266 -11.
1237 +1.
1238 +11.
1267 1267  111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
1268 1268  
1269 1269  The DI port of LT-22222-L can support NPN or PNP output sensor.
... ... @@ -1305,7 +1305,7 @@
1305 1305  
1306 1306  **Example3**: Connect to a 220v high active sensor.公司测试一下
1307 1307  
1308 -Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler 
1280 +Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1309 1309  
1310 1310  * Connect sensor’s output to DI1+ with a serial 50K resistor
1311 1311  * Connect sensor’s GND DI1-.
... ... @@ -1317,8 +1317,8 @@
1317 1317  If sensor output is 220v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1318 1318  
1319 1319  
1320 -1.
1321 -11.
1292 +1.
1293 +11.
1322 1322  111. Digital Output Port: DO1/DO2 /DO3
1323 1323  
1324 1324  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1328,8 +1328,8 @@
1328 1328  
1329 1329  
1330 1330  
1331 -1.
1332 -11.
1303 +1.
1304 +11.
1333 1333  111. Analog Input Interface
1334 1334  
1335 1335  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:
... ... @@ -1361,8 +1361,8 @@
1361 1361  
1362 1362  
1363 1363  
1364 -1.
1365 -11.
1336 +1.
1337 +11.
1366 1366  111. Relay Output
1367 1367  
1368 1368  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:
... ... @@ -1376,10 +1376,10 @@
1376 1376  
1377 1377  
1378 1378  
1379 -1.
1351 +1.
1380 1380  11. LEDs Indicators
1381 1381  
1382 -
1354 +(% border="1" style="background-color:#f7faff" %)
1383 1383  |**LEDs**|**Feature**
1384 1384  |**PWR**|Always on if there is power
1385 1385  |**SYS**|After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
... ... @@ -1415,7 +1415,6 @@
1415 1415  
1416 1416  
1417 1417  
1418 -
1419 1419  1. Use AT Command
1420 1420  11. Access AT Command
1421 1421  
... ... @@ -1525,7 +1525,7 @@
1525 1525  
1526 1526  
1527 1527  
1528 -1.
1499 +1.
1529 1529  11. Common AT Command Sequence
1530 1530  111. Multi-channel ABP mode (Use with SX1301/LG308)
1531 1531  
... ... @@ -1548,8 +1548,8 @@
1548 1548  
1549 1549  ATZ
1550 1550  
1551 -1.
1552 -11.
1522 +1.
1523 +11.
1553 1553  111. Single-channel ABP mode (Use with LG01/LG02)
1554 1554  
1555 1555  123456   Enter Password to have AT access.
... ... @@ -1588,11 +1588,10 @@
1588 1588  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1589 1589  
1590 1590  
1591 -1.
1592 -11.
1562 +1.
1563 +11.
1593 1593  111. Change to Class A
1594 1594  
1595 -
1596 1596  If sensor JOINED
1597 1597  
1598 1598  AT+CLASS=A
... ... @@ -1605,8 +1605,7 @@
1605 1605  
1606 1606  1. FAQ
1607 1607  
1608 -
1609 -1.
1578 +1.
1610 1610  11. How to upgrade the image?
1611 1611  
1612 1612  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
... ... @@ -1615,7 +1615,6 @@
1615 1615  * For bug fix
1616 1616  * Change LoRaWAN bands.
1617 1617  
1618 -
1619 1619  Below shows the hardware connection for how to upload an image to the LT:
1620 1620  
1621 1621  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
... ... @@ -1660,13 +1660,13 @@
1660 1660  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1661 1661  
1662 1662  
1663 -1.
1631 +1.
1664 1664  11. How to change the LoRa Frequency Bands/Region?
1665 1665  
1666 1666  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1667 1667  
1668 1668  
1669 -1.
1637 +1.
1670 1670  11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1671 1671  
1672 1672  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
... ... @@ -1709,7 +1709,7 @@
1709 1709  
1710 1710  
1711 1711  
1712 -1.
1680 +1.
1713 1713  11. Can I see counting event in Serial?
1714 1714  
1715 1715  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.
... ... @@ -1725,7 +1725,7 @@
1725 1725  [[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work]]
1726 1726  
1727 1727  
1728 -1.
1696 +1.
1729 1729  11. Have trouble to upload image.
1730 1730  
1731 1731  See this link for trouble shooting:
... ... @@ -1733,7 +1733,7 @@
1733 1733  [[http:~~/~~/wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting>>url:http://wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting]]
1734 1734  
1735 1735  
1736 -1.
1704 +1.
1737 1737  11. Why I can’t join TTN in US915 /AU915 bands?
1738 1738  
1739 1739  It might be about the channels mapping. Please see this link for detail:
... ... @@ -1745,7 +1745,6 @@
1745 1745  
1746 1746  1. Order Info
1747 1747  
1748 -
1749 1749  **For LT-33222-L-XXX or LT-22222-L-XXX:**
1750 1750  
1751 1751  **XXX:**
... ... @@ -1760,7 +1760,6 @@
1760 1760  * **IN865**: LT with frequency bands IN865
1761 1761  * **CN779**: LT with frequency bands CN779
1762 1762  
1763 -
1764 1764  1. Packing Info
1765 1765  
1766 1766  **Package Includes**:
... ... @@ -1770,7 +1770,6 @@
1770 1770  * Bracket for controller x1
1771 1771  * Program cable x 1
1772 1772  
1773 -
1774 1774  **Dimension and weight**:
1775 1775  
1776 1776  * Device Size: 13.5 x 7 x 3 cm
... ... @@ -1778,7 +1778,6 @@
1778 1778  * Package Size / pcs : 14.5 x 8 x 5 cm
1779 1779  * Weight / pcs : 170g
1780 1780  
1781 -
1782 1782  1. Support
1783 1783  
1784 1784  * 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.
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