Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 90.10 >
edited by Xiaoling
on 2022/08/18 13:46
To version < 101.4 >
edited by Xiaoling
on 2022/10/25 15:24
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -15,13 +15,16 @@
15 15  
16 16  = 1.Introduction =
17 17  
18 +
18 18  == 1.1 What is LT Series I/O Controller ==
19 19  
20 20  (((
21 21  
22 22  
24 +(((
23 23  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.
24 24  )))
27 +)))
25 25  
26 26  (((
27 27  The LT I/O Controllers allows the user to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
... ... @@ -57,7 +57,7 @@
57 57  (((
58 58  
59 59  
60 -**Hardware System:**
63 +(% style="color:#037691" %)**Hardware System:**
61 61  )))
62 62  
63 63  * (((
... ... @@ -82,7 +82,7 @@
82 82  (((
83 83  
84 84  
85 -**Interface for Model: LT22222-L:**
88 +(% style="color:#037691" %)**Interface for Model: LT22222-L:**
86 86  )))
87 87  
88 88  * (((
... ... @@ -107,7 +107,7 @@
107 107  (((
108 108  
109 109  
110 -**LoRa Spec:**
113 +(% style="color:#037691" %)**LoRa Spec:**
111 111  )))
112 112  
113 113  * (((
... ... @@ -177,7 +177,7 @@
177 177  
178 178  * LoRaWAN Class A & Class C protocol
179 179  * Optional Customized LoRa Protocol
180 -* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865
183 +* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
181 181  * AT Commands to change parameters
182 182  * Remote configure parameters via LoRa Downlink
183 183  * Firmware upgradable via program port
... ... @@ -185,8 +185,6 @@
185 185  
186 186  
187 187  
188 -
189 -
190 190  == 1.4  Applications ==
191 191  
192 192  
... ... @@ -199,8 +199,6 @@
199 199  
200 200  
201 201  
202 -
203 -
204 204  == 1.5 Hardware Variants ==
205 205  
206 206  
... ... @@ -217,14 +217,17 @@
217 217  
218 218  
219 219  
220 -
221 221  = 2. Power ON Device =
222 222  
223 223  
222 +(((
224 224  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.
224 +)))
225 225  
226 226  (((
227 227  PWR will on when device is properly powered.
228 +
229 +
228 228  )))
229 229  
230 230  [[image:1653297104069-180.png]]
... ... @@ -233,6 +233,7 @@
233 233  
234 234  = 3. Operation Mode =
235 235  
238 +
236 236  == 3.1 How it works? ==
237 237  
238 238  
... ... @@ -277,12 +277,12 @@
277 277  
278 278  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
279 279  
280 -Add APP EUI in the application.
283 +**Add APP EUI in the application.**
281 281  
282 282  [[image:1653297955910-247.png||height="321" width="716"]]
283 283  
284 284  
285 -Add APP KEY and DEV EUI
288 +**Add APP KEY and DEV EUI**
286 286  
287 287  [[image:1653298023685-319.png]]
288 288  
... ... @@ -290,6 +290,8 @@
290 290  
291 291  (((
292 292  (% 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.
296 +
297 +
293 293  )))
294 294  
295 295  [[image:1653298044601-602.png||height="405" width="709"]]
... ... @@ -310,12 +310,12 @@
310 310  
311 311  
312 312  
313 -
314 -
315 315  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
316 316  
317 317  
321 +(((
318 318  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
323 +)))
319 319  
320 320  [[image:image-20220523174024-3.png]]
321 321  
... ... @@ -331,7 +331,7 @@
331 331  * DI is for digital input. DIx=1: high or float, DIx=0: low.
332 332  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
333 333  
334 -(% style="color:red" %)Note: DI3 and DO3 bit are not valid for LT-22222-L
339 +(% style="color:red" %)**Note: DI3 and DO3 bit are not valid for LT-22222-L**
335 335  
336 336  For example if payload is: [[image:image-20220523175847-2.png]]
337 337  
... ... @@ -368,12 +368,12 @@
368 368  
369 369  
370 370  
371 -
372 -
373 373  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
374 374  
375 375  
379 +(((
376 376  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
381 +)))
377 377  
378 378  (((
379 379  Total : 11 bytes payload
... ... @@ -393,7 +393,7 @@
393 393  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
394 394  
395 395  (((
396 -(% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
401 +(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
397 397  )))
398 398  
399 399  (((
... ... @@ -405,16 +405,22 @@
405 405  (% class="box infomessage" %)
406 406  (((
407 407  (((
413 +(((
408 408  **AT+MOD=2**
415 +)))
409 409  
417 +(((
410 410  **ATZ**
411 411  )))
412 412  )))
421 +)))
413 413  
414 414  (((
415 415  
416 416  
417 417  (% style="color:#4f81bd" %)**AT Commands for counting:**
427 +
428 +
418 418  )))
419 419  
420 420  (((
... ... @@ -456,7 +456,7 @@
456 456  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
457 457  
458 458  (((
459 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
470 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
460 460  )))
461 461  
462 462  
... ... @@ -467,11 +467,15 @@
467 467  (% class="box infomessage" %)
468 468  (((
469 469  (((
481 +(((
470 470  **AT+MOD=3**
483 +)))
471 471  
485 +(((
472 472  **ATZ**
473 473  )))
474 474  )))
489 +)))
475 475  
476 476  (((
477 477  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -482,9 +482,13 @@
482 482  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
483 483  
484 484  
500 +(((
485 485  **LT22222-L**: This mode the DI1 is used as a counting pin.
502 +)))
486 486  
504 +(((
487 487  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.
506 +)))
488 488  
489 489  [[image:image-20220523181903-8.png]]
490 490  
... ... @@ -500,7 +500,7 @@
500 500  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
501 501  
502 502  (((
503 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
522 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
504 504  )))
505 505  
506 506  (((
... ... @@ -512,14 +512,17 @@
512 512  (% class="box infomessage" %)
513 513  (((
514 514  (((
534 +(((
515 515  **AT+MOD=4**
536 +)))
516 516  
538 +(((
517 517  **ATZ**
518 518  )))
519 519  )))
542 +)))
520 520  
521 521  
522 -
523 523  (((
524 524  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
525 525  )))
... ... @@ -561,7 +561,7 @@
561 561  )))
562 562  
563 563  (((
564 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
586 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
565 565  )))
566 566  
567 567  (((
... ... @@ -573,11 +573,15 @@
573 573  (% class="box infomessage" %)
574 574  (((
575 575  (((
598 +(((
576 576  **AT+MOD=5**
600 +)))
577 577  
602 +(((
578 578  **ATZ**
579 579  )))
580 580  )))
606 +)))
581 581  
582 582  (((
583 583  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -607,6 +607,7 @@
607 607  
608 608  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
609 609  
636 +
610 610  **Example:**
611 611  
612 612  AT+AVLIM=3000,6000,0,2000   (If AVI1 voltage lower than 3v or higher than 6v. or AV2 voltage is higher than 2v, LT will trigger Uplink)
... ... @@ -619,6 +619,7 @@
619 619  
620 620  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
621 621  
649 +
622 622  **Example:**
623 623  
624 624  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
... ... @@ -637,6 +637,7 @@
637 637  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
638 638  
639 639  
668 +
640 640  (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
641 641  
642 642  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
... ... @@ -685,6 +685,7 @@
685 685  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
686 686  
687 687  
717 +
688 688  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
689 689  
690 690  [[image:image-20220524090249-3.png]]
... ... @@ -696,6 +696,7 @@
696 696  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
697 697  
698 698  
729 +
699 699  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
700 700  
701 701  [[image:image-20220524090456-4.png]]
... ... @@ -709,6 +709,7 @@
709 709  00000101: Means both DI1 and DI2 trigger are enabled.
710 710  
711 711  
743 +
712 712  (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
713 713  
714 714  Downlink command to poll MOD6 status:
... ... @@ -724,7 +724,7 @@
724 724  (((
725 725  
726 726  
727 -**Decoder for TTN/loraserver/ChirpStack**:  [[https:~~/~~/www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0>>https://www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0]]
759 +**Decoder for TTN/loraserver/ChirpStack**:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
728 728  )))
729 729  
730 730  
... ... @@ -732,11 +732,15 @@
732 732  == 3.4 ​Configure LT via AT or Downlink ==
733 733  
734 734  
767 +(((
735 735  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
769 +)))
736 736  
737 737  (((
772 +(((
738 738  There are two kinds of Commands:
739 739  )))
775 +)))
740 740  
741 741  * (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
742 742  
... ... @@ -748,7 +748,9 @@
748 748  === 3.4.1 Common Commands ===
749 749  
750 750  
787 +(((
751 751  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]]
789 +)))
752 752  
753 753  
754 754  
... ... @@ -807,6 +807,7 @@
807 807  
808 808  **0x08 FF     **~/~/ Poll an uplink
809 809  
848 +
810 810  **Example**: 0x08FF, ask device to send an Uplink
811 811  
812 812  
... ... @@ -971,7 +971,7 @@
971 971  (((
972 972  
973 973  
974 -(% style="color:red" %)Note: ATDC setting must be more than 5min
1013 +(% style="color:red" %)**Note: ATDC setting must be more than 5min**
975 975  )))
976 976  
977 977  
... ... @@ -999,11 +999,11 @@
999 999  [[image:image-20220524092754-5.png]]
1000 1000  
1001 1001  (((
1002 -(% style="color:red" %)Note: For LT-22222-L, there is no DO3, the last byte can use any value.
1041 +(% style="color:red" %)**Note: For LT-22222-L, there is no DO3, the last byte can use any value.**
1003 1003  )))
1004 1004  
1005 1005  (((
1006 -(% style="color:red" %)Device will upload a packet if downlink code executes successfully.
1045 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1007 1007  )))
1008 1008  
1009 1009  
... ... @@ -1048,11 +1048,11 @@
1048 1048  [[image:image-20220524093351-8.png]]
1049 1049  
1050 1050  
1051 -(% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
1090 +(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:
1052 1052  
1053 1053   Latching time. Unit: ms
1054 1054  
1055 -Device will upload a packet if downlink code executes successfully.
1094 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1056 1056  
1057 1057  
1058 1058  **Example payload:**
... ... @@ -1101,7 +1101,7 @@
1101 1101  [[image:image-20220524093724-9.png]]
1102 1102  )))
1103 1103  
1104 -Device will upload a packet if downlink code executes successfully.
1143 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1105 1105  
1106 1106  
1107 1107  
... ... @@ -1132,12 +1132,12 @@
1132 1132  
1133 1133  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1134 1134  
1135 -[[image:image-20220714135731-1.png||height="406" width="627"]]
1174 +[[image:image-20221008095908-1.png||height="364" width="564"]]
1136 1136  
1137 1137  
1138 -(% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
1177 +(% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
1139 1139  
1140 -Device will upload a packet if downlink code executes successfully.
1179 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1141 1141  
1142 1142  
1143 1143  **Example payload:**
... ... @@ -1160,7 +1160,6 @@
1160 1160  
1161 1161  
1162 1162  
1163 -
1164 1164  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1165 1165  
1166 1166  
... ... @@ -1233,11 +1233,124 @@
1233 1233  (((
1234 1234  range: aa bb cc:0 to 16777215,  (unit:second)
1235 1235  
1274 +
1275 +
1236 1236  
1237 1237  )))
1238 1238  
1279 +==== 3.4.2.20 Reset save DR DO state ====
1239 1239  
1240 1240  
1282 +* (% style="color:#037691" %)**AT Command:**
1283 +
1284 +**AT+RODORET=1  **~/~/ RODO will close when the device joining the network. (default)
1285 +
1286 +**AT+RODORET=0  **~/~/After the device is reset, the previously saved RODO state (only MOD2 to MOD5) is read, and its state is not changed when it is reconnected to the network.
1287 +
1288 +
1289 +* (% style="color:#037691" %)**Downlink Payload (prefix 0xAD):**
1290 +
1291 +**0x AD aa      **~/~/ same as AT+RODORET =aa
1292 +
1293 +(((
1294 +
1295 +
1296 +
1297 +
1298 +==== 3.4.2.21 Encrypted payload ====
1299 +
1300 +
1301 +* (% style="color:#037691" %)**AT Command:**
1302 +
1303 +**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
1304 +
1305 +**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
1306 +
1307 +
1308 +
1309 +
1310 +==== 3.4.2.22 Get sensor value ====
1311 +
1312 +
1313 +* (% style="color:#037691" %)**AT Command:**
1314 +
1315 +**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
1316 +
1317 +**AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
1318 +
1319 +
1320 +
1321 +
1322 +==== 3.4.2.23 Resets the downlink packet count ====
1323 +
1324 +
1325 +* (% style="color:#037691" %)**AT Command:**
1326 +
1327 +**AT+DISFCNTCHECK=0  **~/~/ When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
1328 +
1329 +**AT+DISFCNTCHECK=1  **~/~/When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
1330 +
1331 +
1332 +
1333 +
1334 +==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1335 +
1336 +
1337 +* (% style="color:#037691" %)**AT Command:**
1338 +
1339 + **AT+DISMACANS=0**  ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
1340 +
1341 + **AT+DISMACANS=1**      ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
1342 +
1343 +
1344 +* (% style="color:#037691" %)**Downlink Payload **(%%)**:**
1345 +
1346 +**0x21 00 01 ** ~/~/ Set  the DISMACANS=1
1347 +
1348 +
1349 +
1350 +
1351 +==== 3.4.2.25 Copy downlink to uplink ====
1352 +
1353 +
1354 +* (% style="color:#037691" %)**AT Command**(%%)**:**
1355 +
1356 + **AT+RPL=5**  ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
1357 +
1358 +Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
1359 +
1360 +
1361 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
1362 +
1363 +For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1364 +
1365 +
1366 +
1367 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
1368 +
1369 +For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1370 +
1371 +
1372 +
1373 +==== 3.4.2.26 Query version number and frequency band 、TDC ====
1374 +
1375 +
1376 +* (((
1377 +(% style="color:#037691" %)**Downlink Payload**(%%)**:**
1378 +
1379 +**26 01  ** ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1380 +
1381 +
1382 +)))
1383 +
1384 +**Example：**
1385 +
1386 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
1387 +
1388 +
1389 +
1390 +)))
1391 +
1241 1241  == 3.5 Integrate with Mydevice ==
1242 1242  
1243 1243  
... ... @@ -1336,10 +1336,10 @@
1336 1336  )))
1337 1337  
1338 1338  * (((
1339 -Connect sensor’s output to DI1-
1490 +Connect sensor's output to DI1-
1340 1340  )))
1341 1341  * (((
1342 -Connect sensor’s VCC to DI1+.
1493 +Connect sensor's VCC to DI1+.
1343 1343  )))
1344 1344  
1345 1345  (((
... ... @@ -1347,11 +1347,11 @@
1347 1347  )))
1348 1348  
1349 1349  (((
1350 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1501 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1**+** / 1K.**
1351 1351  )))
1352 1352  
1353 1353  (((
1354 -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.
1505 +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.
1355 1355  )))
1356 1356  
1357 1357  (((
... ... @@ -1369,10 +1369,10 @@
1369 1369  )))
1370 1370  
1371 1371  * (((
1372 -Connect sensor’s output to DI1+
1523 +Connect sensor's output to DI1+
1373 1373  )))
1374 1374  * (((
1375 -Connect sensor’s GND DI1-.
1526 +Connect sensor's GND DI1-.
1376 1376  )))
1377 1377  
1378 1378  (((
... ... @@ -1402,10 +1402,10 @@
1402 1402  )))
1403 1403  
1404 1404  * (((
1405 -Connect sensor’s output to DI1+ with a serial 50K resistor
1556 +Connect sensor's output to DI1+ with a serial 50K resistor
1406 1406  )))
1407 1407  * (((
1408 -Connect sensor’s GND DI1-.
1559 +Connect sensor's GND DI1-.
1409 1409  )))
1410 1410  
1411 1411  (((
... ... @@ -1446,13 +1446,13 @@
1446 1446  We take the wind speed sensor as an example for reference only.
1447 1447  
1448 1448  
1449 -**Specifications of the wind speed sensor:**
1600 +(% style="color:blue" %)**Specifications of the wind speed sensor:**
1450 1450  
1451 -Red:  12~~24v
1602 +**Red:  12~~24v**
1452 1452  
1453 -Yellow:  4~~20mA
1604 +**Yellow:  4~~20mA**
1454 1454  
1455 -Black:  GND
1606 +**Black:  GND**
1456 1456  
1457 1457  
1458 1458  **Connection diagram:**
... ... @@ -1472,6 +1472,7 @@
1472 1472  
1473 1473  [[image:image-20220524100215-9.png]]
1474 1474  
1626 +
1475 1475  [[image:image-20220524100215-10.png||height="382" width="723"]]
1476 1476  
1477 1477  
... ... @@ -1489,8 +1489,14 @@
1489 1489  == 4.1 Access AT Command ==
1490 1490  
1491 1491  
1644 +(((
1492 1492  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.
1646 +)))
1493 1493  
1648 +(((
1649 +
1650 +)))
1651 +
1494 1494  [[image:1653358238933-385.png]]
1495 1495  
1496 1496  
... ... @@ -1518,7 +1518,7 @@
1518 1518  )))
1519 1519  
1520 1520  (((
1521 -AT+<CMD>=?       : Get the value
1679 +AT+<CMD>=?       :  Get the value
1522 1522  )))
1523 1523  
1524 1524  (((
... ... @@ -1546,11 +1546,11 @@
1546 1546  )))
1547 1547  
1548 1548  (((
1549 -AT+APPSKEY: Get or Set the Application Session Key
1707 +AT+APPSKEY:  Get or Set the Application Session Key
1550 1550  )))
1551 1551  
1552 1552  (((
1553 -AT+APPEUI: Get or Set the Application EUI
1711 +AT+APPEUI:  Get or Set the Application EUI
1554 1554  )))
1555 1555  
1556 1556  (((
... ... @@ -1562,7 +1562,7 @@
1562 1562  )))
1563 1563  
1564 1564  (((
1565 -AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1723 +AT+DR:  Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1566 1566  )))
1567 1567  
1568 1568  (((
... ... @@ -1598,7 +1598,7 @@
1598 1598  )))
1599 1599  
1600 1600  (((
1601 -AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1759 +AT+NJM:  Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1602 1602  )))
1603 1603  
1604 1604  (((
... ... @@ -1642,7 +1642,7 @@
1642 1642  )))
1643 1643  
1644 1644  (((
1645 -AT+VER: Get current image version and Frequency Band
1803 +AT+VER:  Get current image version and Frequency Band
1646 1646  )))
1647 1647  
1648 1648  (((
... ... @@ -1650,7 +1650,7 @@
1650 1650  )))
1651 1651  
1652 1652  (((
1653 -AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1811 +AT+CFS:  Get confirmation status of the last AT+SEND (0-1)
1654 1654  )))
1655 1655  
1656 1656  (((
... ... @@ -1699,40 +1699,42 @@
1699 1699  (((
1700 1700  
1701 1701  
1702 -**If device has not joined network yet:**
1860 +(((
1861 +(% style="color:blue" %)**If device has not joined network yet:**
1703 1703  )))
1863 +)))
1704 1704  
1705 1705  (((
1706 -(% style="background-color:#dcdcdc" %)123456
1866 +(% style="background-color:#dcdcdc" %)**123456**
1707 1707  )))
1708 1708  
1709 1709  (((
1710 -(% style="background-color:#dcdcdc" %)AT+FDR
1870 +(% style="background-color:#dcdcdc" %)**AT+FDR**
1711 1711  )))
1712 1712  
1713 1713  (((
1714 -(% style="background-color:#dcdcdc" %)123456
1874 +(% style="background-color:#dcdcdc" %)**123456**
1715 1715  )))
1716 1716  
1717 1717  (((
1718 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1878 +(% style="background-color:#dcdcdc" %)**AT+NJM=0**
1719 1719  )))
1720 1720  
1721 1721  (((
1722 -(% style="background-color:#dcdcdc" %)ATZ
1882 +(% style="background-color:#dcdcdc" %)**ATZ**
1723 1723  )))
1724 1724  
1725 1725  
1726 1726  (((
1727 -**If device already joined network:**
1887 +(% style="color:blue" %)**If device already joined network:**
1728 1728  )))
1729 1729  
1730 1730  (((
1731 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1891 +(% style="background-color:#dcdcdc" %)**AT+NJM=0**
1732 1732  )))
1733 1733  
1734 1734  (((
1735 -(% style="background-color:#dcdcdc" %)ATZ
1895 +(% style="background-color:#dcdcdc" %)**ATZ**
1736 1736  )))
1737 1737  
1738 1738  
... ... @@ -1742,55 +1742,57 @@
1742 1742  (((
1743 1743  
1744 1744  
1745 -(% style="background-color:#dcdcdc" %)123456(%%)  Enter Password to have AT access.
1905 +(((
1906 +(% style="background-color:#dcdcdc" %)**123456**(%%)  ~/~/ Enter Password to have AT access.
1746 1746  )))
1908 +)))
1747 1747  
1748 1748  (((
1749 -(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1911 +(% style="background-color:#dcdcdc" %)** AT+FDR**(%%)  ~/~/ Reset Parameters to Factory Default, Keys Reserve
1750 1750  )))
1751 1751  
1752 1752  (((
1753 -(% style="background-color:#dcdcdc" %) 123456(%%)  Enter Password to have AT access.
1915 +(% style="background-color:#dcdcdc" %)** 123456**(%%)  ~/~/ Enter Password to have AT access.
1754 1754  )))
1755 1755  
1756 1756  (((
1757 -(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1919 +(% style="background-color:#dcdcdc" %)** AT+CLASS=C**(%%)  ~/~/ Set to work in CLASS C
1758 1758  )))
1759 1759  
1760 1760  (((
1761 -(% style="background-color:#dcdcdc" %) AT+NJM=0(%%)  Set to ABP mode
1923 +(% style="background-color:#dcdcdc" %)** AT+NJM=0**(%%)  ~/~/ Set to ABP mode
1762 1762  )))
1763 1763  
1764 1764  (((
1765 -(% style="background-color:#dcdcdc" %) AT+ADR=0(%%)  Set the Adaptive Data Rate Off
1927 +(% style="background-color:#dcdcdc" %) **AT+ADR=0**(%%)  ~/~/ Set the Adaptive Data Rate Off
1766 1766  )))
1767 1767  
1768 1768  (((
1769 -(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1931 +(% style="background-color:#dcdcdc" %)** AT+DR=5**(%%)  ~/~/ Set Data Rate
1770 1770  )))
1771 1771  
1772 1772  (((
1773 -(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1935 +(% style="background-color:#dcdcdc" %)** AT+TDC=60000**(%%)  ~/~/ Set transmit interval to 60 seconds
1774 1774  )))
1775 1775  
1776 1776  (((
1777 -(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
1939 +(% style="background-color:#dcdcdc" %)** AT+CHS=868400000**(%%)  ~/~/ Set transmit frequency to 868.4Mhz
1778 1778  )))
1779 1779  
1780 1780  (((
1781 -(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%)  Set RX2Frequency to 868.4Mhz (according to the result from server)
1943 +(% style="background-color:#dcdcdc" %)** AT+RX2FQ=868400000**(%%)  ~/~/ Set RX2Frequency to 868.4Mhz (according to the result from server)
1782 1782  )))
1783 1783  
1784 1784  (((
1785 -(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1947 +(% style="background-color:#dcdcdc" %)** AT+RX2DR=5**(%%)** ** ~/~/ Set RX2DR to match the downlink DR from server. see below
1786 1786  )))
1787 1787  
1788 1788  (((
1789 -(% style="background-color:#dcdcdc" %) AT+DADDR=26 01 1A F1 (%%) Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1951 +(% style="background-color:#dcdcdc" %)** AT+DADDR=26 01 1A F1** (%%) ~/~/ Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1790 1790  )))
1791 1791  
1792 1792  (((
1793 -(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1955 +(% style="background-color:#dcdcdc" %)** ATZ**         (%%) ~/~/ Reset MCU
1794 1794  
1795 1795  
1796 1796  )))
... ... @@ -1800,10 +1800,16 @@
1800 1800  )))
1801 1801  
1802 1802  (((
1803 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1804 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1805 -3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1806 -4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1965 +**~1. Make sure the device is set to ABP mode in the IoT Server.**
1966 +
1967 +**2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.**
1968 +
1969 +**3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?
1970 +dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1971 +
1972 +**4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5**
1973 +
1974 +
1807 1807  )))
1808 1808  
1809 1809  (((
... ... @@ -1818,12 +1818,15 @@
1818 1818  === 4.2.3 Change to Class A ===
1819 1819  
1820 1820  
1821 -If sensor JOINED
1822 -(% style="background-color:#dcdcdc" %)AT+CLASS=A
1823 -ATZ
1989 +(((
1990 +(% style="color:blue" %)If sensor JOINED:
1824 1824  
1992 +(% style="background-color:#dcdcdc" %)**AT+CLASS=A
1993 +ATZ**
1994 +)))
1825 1825  
1826 1826  
1997 +
1827 1827  = 5. FAQ =
1828 1828  
1829 1829  
... ... @@ -1843,12 +1843,14 @@
1843 1843  
1844 1844  (((
1845 1845  (% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1846 -(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
2017 +(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AADKXQ2v5ZT-S3sxdmbvE7UAa/LT-22222-L/image?dl=0&subfolder_nav_tracking=1]].
1847 1847  (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
1848 1848  
1849 1849  
2021 +(((
1850 1850  (% style="color:blue" %)**For LT-22222-L**(%%):
1851 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.
2024 +)))
1852 1852  
1853 1853  
1854 1854  )))
... ... @@ -1899,6 +1899,7 @@
1899 1899  (((
1900 1900  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1901 1901  
2075 +
1902 1902  
1903 1903  )))
1904 1904  )))
... ... @@ -1905,10 +1905,14 @@
1905 1905  
1906 1906  (((
1907 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.
2082 +
2083 +
1908 1908  )))
1909 1909  
1910 1910  (((
1911 1911  [[image:1653360231087-571.png||height="401" width="727"]]
2088 +
2089 +
1912 1912  )))
1913 1913  
1914 1914  (((
... ... @@ -1916,21 +1916,23 @@
1916 1916  )))
1917 1917  
1918 1918  
2097 +
1919 1919  (((
1920 1920  (% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2100 +
2101 +
1921 1921  )))
1922 1922  
1923 1923  (((
1924 -(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1925 -(% style="background-color:#dcdcdc" %)AT+FDR(%%)  Reset Parameters to Factory Default, Keys Reserve
1926 -(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1927 -(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%) Set to ABP mode
1928 -(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%) Set the Adaptive Data Rate Off
1929 -(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1930 -(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%) Set transmit interval to 60 seconds
1931 -(% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
1932 -(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%)  Set Device Address to 26 01 1A F1
1933 -(% style="background-color:#dcdcdc" %)ATZ        (%%) Reset MCU
2105 +(% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2106 +(% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2107 +(% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2108 +(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2109 +(% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2110 +(% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2111 +(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2112 +(% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2113 +(% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
1934 1934  )))
1935 1935  
1936 1936  
... ... @@ -1973,7 +1973,19 @@
1973 1973  
1974 1974  
1975 1975  
2156 +== 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
2157 +
2158 +
2159 +LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
2160 +
2161 +
2162 +[[image:image-20221006170630-1.png||height="610" width="945"]]
2163 +
2164 +
2165 +
1976 1976  = 6. Trouble Shooting =
2167 +
2168 +
1977 1977  )))
1978 1978  
1979 1979  (((
... ... @@ -2034,6 +2034,7 @@
2034 2034  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2035 2035  
2036 2036  
2229 +
2037 2037  = 8. Packing Info =
2038 2038  
2039 2039  
... ... @@ -2052,6 +2052,7 @@
2052 2052  * Weight / pcs : 170g
2053 2053  
2054 2054  
2248 +
2055 2055  = 9. Support =
2056 2056  
2057 2057  
... ... @@ -2072,5 +2072,3 @@
2072 2072  * 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]]
2073 2073  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2074 2074  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2075 -
2076 -
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