Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 91.1 >
edited by Bei Jinggeng
on 2022/08/24 10:10
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
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Bei
1 +XWiki.Xiaoling
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
... ... @@ -185,7 +185,6 @@
185 185  
186 186  
187 187  
188 -
189 189  == 1.4  Applications ==
190 190  
191 191  
... ... @@ -198,7 +198,6 @@
198 198  
199 199  
200 200  
201 -
202 202  == 1.5 Hardware Variants ==
203 203  
204 204  
... ... @@ -218,10 +218,14 @@
218 218  = 2. Power ON Device =
219 219  
220 220  
222 +(((
221 221  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 +)))
222 222  
223 223  (((
224 224  PWR will on when device is properly powered.
228 +
229 +
225 225  )))
226 226  
227 227  [[image:1653297104069-180.png]]
... ... @@ -230,6 +230,7 @@
230 230  
231 231  = 3. Operation Mode =
232 232  
238 +
233 233  == 3.1 How it works? ==
234 234  
235 235  
... ... @@ -274,12 +274,12 @@
274 274  
275 275  Input these keys in the LoRaWAN Server portal. Below is TTN screen shot:
276 276  
277 -Add APP EUI in the application.
283 +**Add APP EUI in the application.**
278 278  
279 279  [[image:1653297955910-247.png||height="321" width="716"]]
280 280  
281 281  
282 -Add APP KEY and DEV EUI
288 +**Add APP KEY and DEV EUI**
283 283  
284 284  [[image:1653298023685-319.png]]
285 285  
... ... @@ -287,6 +287,8 @@
287 287  
288 288  (((
289 289  (% 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 +
290 290  )))
291 291  
292 292  [[image:1653298044601-602.png||height="405" width="709"]]
... ... @@ -307,11 +307,12 @@
307 307  
308 308  
309 309  
310 -
311 311  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
312 312  
313 313  
321 +(((
314 314  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
323 +)))
315 315  
316 316  [[image:image-20220523174024-3.png]]
317 317  
... ... @@ -327,7 +327,7 @@
327 327  * DI is for digital input. DIx=1: high or float, DIx=0: low.
328 328  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
329 329  
330 -(% 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**
331 331  
332 332  For example if payload is: [[image:image-20220523175847-2.png]]
333 333  
... ... @@ -364,11 +364,12 @@
364 364  
365 365  
366 366  
367 -
368 368  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
369 369  
370 370  
379 +(((
371 371  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
381 +)))
372 372  
373 373  (((
374 374  Total : 11 bytes payload
... ... @@ -388,7 +388,7 @@
388 388  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
389 389  
390 390  (((
391 -(% 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.**
392 392  )))
393 393  
394 394  (((
... ... @@ -400,16 +400,22 @@
400 400  (% class="box infomessage" %)
401 401  (((
402 402  (((
413 +(((
403 403  **AT+MOD=2**
415 +)))
404 404  
417 +(((
405 405  **ATZ**
406 406  )))
407 407  )))
421 +)))
408 408  
409 409  (((
410 410  
411 411  
412 412  (% style="color:#4f81bd" %)**AT Commands for counting:**
427 +
428 +
413 413  )))
414 414  
415 415  (((
... ... @@ -451,7 +451,7 @@
451 451  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
452 452  
453 453  (((
454 -(% 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.**
455 455  )))
456 456  
457 457  
... ... @@ -462,11 +462,15 @@
462 462  (% class="box infomessage" %)
463 463  (((
464 464  (((
481 +(((
465 465  **AT+MOD=3**
483 +)))
466 466  
485 +(((
467 467  **ATZ**
468 468  )))
469 469  )))
489 +)))
470 470  
471 471  (((
472 472  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -477,9 +477,13 @@
477 477  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
478 478  
479 479  
500 +(((
480 480  **LT22222-L**: This mode the DI1 is used as a counting pin.
502 +)))
481 481  
504 +(((
482 482  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 +)))
483 483  
484 484  [[image:image-20220523181903-8.png]]
485 485  
... ... @@ -495,7 +495,7 @@
495 495  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
496 496  
497 497  (((
498 -(% 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.**
499 499  )))
500 500  
501 501  (((
... ... @@ -507,14 +507,17 @@
507 507  (% class="box infomessage" %)
508 508  (((
509 509  (((
534 +(((
510 510  **AT+MOD=4**
536 +)))
511 511  
538 +(((
512 512  **ATZ**
513 513  )))
514 514  )))
542 +)))
515 515  
516 516  
517 -
518 518  (((
519 519  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
520 520  )))
... ... @@ -556,7 +556,7 @@
556 556  )))
557 557  
558 558  (((
559 -(% 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.**
560 560  )))
561 561  
562 562  (((
... ... @@ -568,11 +568,15 @@
568 568  (% class="box infomessage" %)
569 569  (((
570 570  (((
598 +(((
571 571  **AT+MOD=5**
600 +)))
572 572  
602 +(((
573 573  **ATZ**
574 574  )))
575 575  )))
606 +)))
576 576  
577 577  (((
578 578  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -602,6 +602,7 @@
602 602  
603 603  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
604 604  
636 +
605 605  **Example:**
606 606  
607 607  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)
... ... @@ -614,6 +614,7 @@
614 614  
615 615  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
616 616  
649 +
617 617  **Example:**
618 618  
619 619  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
... ... @@ -632,6 +632,7 @@
632 632  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
633 633  
634 634  
668 +
635 635  (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
636 636  
637 637  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
... ... @@ -680,6 +680,7 @@
680 680  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
681 681  
682 682  
717 +
683 683  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
684 684  
685 685  [[image:image-20220524090249-3.png]]
... ... @@ -691,6 +691,7 @@
691 691  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
692 692  
693 693  
729 +
694 694  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
695 695  
696 696  [[image:image-20220524090456-4.png]]
... ... @@ -704,6 +704,7 @@
704 704  00000101: Means both DI1 and DI2 trigger are enabled.
705 705  
706 706  
743 +
707 707  (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
708 708  
709 709  Downlink command to poll MOD6 status:
... ... @@ -719,7 +719,7 @@
719 719  (((
720 720  
721 721  
722 -**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]]
723 723  )))
724 724  
725 725  
... ... @@ -727,11 +727,15 @@
727 727  == 3.4 ​Configure LT via AT or Downlink ==
728 728  
729 729  
767 +(((
730 730  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
769 +)))
731 731  
732 732  (((
772 +(((
733 733  There are two kinds of Commands:
734 734  )))
775 +)))
735 735  
736 736  * (% 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]]
737 737  
... ... @@ -739,10 +739,13 @@
739 739  
740 740  
741 741  
783 +
742 742  === 3.4.1 Common Commands ===
743 743  
744 744  
787 +(((
745 745  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 +)))
746 746  
747 747  
748 748  
... ... @@ -801,6 +801,7 @@
801 801  
802 802  **0x08 FF     **~/~/ Poll an uplink
803 803  
848 +
804 804  **Example**: 0x08FF, ask device to send an Uplink
805 805  
806 806  
... ... @@ -887,9 +887,6 @@
887 887  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
888 888  * **0x09 01 aa bb cc    ** ~/~/ same as AT+TRIG1=aa,0x(bb cc)
889 889  
890 -
891 -
892 -
893 893  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
894 894  
895 895  
... ... @@ -968,7 +968,7 @@
968 968  (((
969 969  
970 970  
971 -(% style="color:red" %)Note: ATDC setting must be more than 5min
1013 +(% style="color:red" %)**Note: ATDC setting must be more than 5min**
972 972  )))
973 973  
974 974  
... ... @@ -996,11 +996,11 @@
996 996  [[image:image-20220524092754-5.png]]
997 997  
998 998  (((
999 -(% 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.**
1000 1000  )))
1001 1001  
1002 1002  (((
1003 -(% 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.**
1004 1004  )))
1005 1005  
1006 1006  
... ... @@ -1045,11 +1045,11 @@
1045 1045  [[image:image-20220524093351-8.png]]
1046 1046  
1047 1047  
1048 -(% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
1090 +(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:
1049 1049  
1050 1050   Latching time. Unit: ms
1051 1051  
1052 -Device will upload a packet if downlink code executes successfully.
1094 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1053 1053  
1054 1054  
1055 1055  **Example payload:**
... ... @@ -1098,7 +1098,7 @@
1098 1098  [[image:image-20220524093724-9.png]]
1099 1099  )))
1100 1100  
1101 -Device will upload a packet if downlink code executes successfully.
1143 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1102 1102  
1103 1103  
1104 1104  
... ... @@ -1129,12 +1129,12 @@
1129 1129  
1130 1130  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1131 1131  
1132 -[[image:image-20220714135731-1.png||height="406" width="627"]]
1174 +[[image:image-20221008095908-1.png||height="364" width="564"]]
1133 1133  
1134 1134  
1135 -(% 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
1136 1136  
1137 -Device will upload a packet if downlink code executes successfully.
1179 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1138 1138  
1139 1139  
1140 1140  **Example payload:**
... ... @@ -1157,7 +1157,6 @@
1157 1157  
1158 1158  
1159 1159  
1160 -
1161 1161  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1162 1162  
1163 1163  
... ... @@ -1230,11 +1230,14 @@
1230 1230  (((
1231 1231  range: aa bb cc:0 to 16777215,  (unit:second)
1232 1232  
1274 +
1275 +
1233 1233  
1234 1234  )))
1235 1235  
1236 1236  ==== 3.4.2.20 Reset save DR DO state ====
1237 1237  
1281 +
1238 1238  * (% style="color:#037691" %)**AT Command:**
1239 1239  
1240 1240  **AT+RODORET=1  **~/~/ RODO will close when the device joining the network. (default)
... ... @@ -1244,13 +1244,16 @@
1244 1244  
1245 1245  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAD):**
1246 1246  
1247 -**0x AD aa  **~/~/ same as AT+RODORET =aa
1291 +**0x AD aa      **~/~/ same as AT+RODORET =aa
1248 1248  
1249 1249  (((
1250 1250  
1251 1251  
1296 +
1297 +
1252 1252  ==== 3.4.2.21 Encrypted payload ====
1253 1253  
1300 +
1254 1254  * (% style="color:#037691" %)**AT Command:**
1255 1255  
1256 1256  **AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
... ... @@ -1258,8 +1258,11 @@
1258 1258  **AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
1259 1259  
1260 1260  
1308 +
1309 +
1261 1261  ==== 3.4.2.22 Get sensor value ====
1262 1262  
1312 +
1263 1263  * (% style="color:#037691" %)**AT Command:**
1264 1264  
1265 1265  **AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
... ... @@ -1267,8 +1267,11 @@
1267 1267  **AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
1268 1268  
1269 1269  
1320 +
1321 +
1270 1270  ==== 3.4.2.23 Resets the downlink packet count ====
1271 1271  
1324 +
1272 1272  * (% style="color:#037691" %)**AT Command:**
1273 1273  
1274 1274  **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)
... ... @@ -1276,8 +1276,11 @@
1276 1276  **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.
1277 1277  
1278 1278  
1332 +
1333 +
1279 1279  ==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1280 1280  
1336 +
1281 1281  * (% style="color:#037691" %)**AT Command:**
1282 1282  
1283 1283   **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)
... ... @@ -1289,8 +1289,12 @@
1289 1289  
1290 1290  **0x21 00 01 ** ~/~/ Set  the DISMACANS=1
1291 1291  
1348 +
1349 +
1350 +
1292 1292  ==== 3.4.2.25 Copy downlink to uplink ====
1293 1293  
1353 +
1294 1294  * (% style="color:#037691" %)**AT Command**(%%)**:**
1295 1295  
1296 1296   **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.
... ... @@ -1297,10 +1297,13 @@
1297 1297  
1298 1298  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.
1299 1299  
1360 +
1300 1300  [[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"]]
1301 1301  
1302 1302  For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1303 1303  
1365 +
1366 +
1304 1304  [[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"]]
1305 1305  
1306 1306  For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
... ... @@ -1309,11 +1309,16 @@
1309 1309  
1310 1310  ==== 3.4.2.26 Query version number and frequency band 、TDC ====
1311 1311  
1375 +
1312 1312  * (((
1313 -(% style="color:#037691" %)**Downlink Payload**(%%)**: 26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
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 +
1314 1314  )))
1315 1315  
1316 -Example：
1384 +**Example：**
1317 1317  
1318 1318  [[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"]]
1319 1319  
... ... @@ -1419,10 +1419,10 @@
1419 1419  )))
1420 1420  
1421 1421  * (((
1422 -Connect sensor’s output to DI1-
1490 +Connect sensor's output to DI1-
1423 1423  )))
1424 1424  * (((
1425 -Connect sensor’s VCC to DI1+.
1493 +Connect sensor's VCC to DI1+.
1426 1426  )))
1427 1427  
1428 1428  (((
... ... @@ -1430,11 +1430,11 @@
1430 1430  )))
1431 1431  
1432 1432  (((
1433 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1501 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1**+** / 1K.**
1434 1434  )))
1435 1435  
1436 1436  (((
1437 -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.
1438 1438  )))
1439 1439  
1440 1440  (((
... ... @@ -1452,10 +1452,10 @@
1452 1452  )))
1453 1453  
1454 1454  * (((
1455 -Connect sensor’s output to DI1+
1523 +Connect sensor's output to DI1+
1456 1456  )))
1457 1457  * (((
1458 -Connect sensor’s GND DI1-.
1526 +Connect sensor's GND DI1-.
1459 1459  )))
1460 1460  
1461 1461  (((
... ... @@ -1485,10 +1485,10 @@
1485 1485  )))
1486 1486  
1487 1487  * (((
1488 -Connect sensor’s output to DI1+ with a serial 50K resistor
1556 +Connect sensor's output to DI1+ with a serial 50K resistor
1489 1489  )))
1490 1490  * (((
1491 -Connect sensor’s GND DI1-.
1559 +Connect sensor's GND DI1-.
1492 1492  )))
1493 1493  
1494 1494  (((
... ... @@ -1529,13 +1529,13 @@
1529 1529  We take the wind speed sensor as an example for reference only.
1530 1530  
1531 1531  
1532 -**Specifications of the wind speed sensor:**
1600 +(% style="color:blue" %)**Specifications of the wind speed sensor:**
1533 1533  
1534 -Red:  12~~24v
1602 +**Red:  12~~24v**
1535 1535  
1536 -Yellow:  4~~20mA
1604 +**Yellow:  4~~20mA**
1537 1537  
1538 -Black:  GND
1606 +**Black:  GND**
1539 1539  
1540 1540  
1541 1541  **Connection diagram:**
... ... @@ -1555,6 +1555,7 @@
1555 1555  
1556 1556  [[image:image-20220524100215-9.png]]
1557 1557  
1626 +
1558 1558  [[image:image-20220524100215-10.png||height="382" width="723"]]
1559 1559  
1560 1560  
... ... @@ -1572,8 +1572,14 @@
1572 1572  == 4.1 Access AT Command ==
1573 1573  
1574 1574  
1644 +(((
1575 1575  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 +)))
1576 1576  
1648 +(((
1649 +
1650 +)))
1651 +
1577 1577  [[image:1653358238933-385.png]]
1578 1578  
1579 1579  
... ... @@ -1601,7 +1601,7 @@
1601 1601  )))
1602 1602  
1603 1603  (((
1604 -AT+<CMD>=?       : Get the value
1679 +AT+<CMD>=?       :  Get the value
1605 1605  )))
1606 1606  
1607 1607  (((
... ... @@ -1629,11 +1629,11 @@
1629 1629  )))
1630 1630  
1631 1631  (((
1632 -AT+APPSKEY: Get or Set the Application Session Key
1707 +AT+APPSKEY:  Get or Set the Application Session Key
1633 1633  )))
1634 1634  
1635 1635  (((
1636 -AT+APPEUI: Get or Set the Application EUI
1711 +AT+APPEUI:  Get or Set the Application EUI
1637 1637  )))
1638 1638  
1639 1639  (((
... ... @@ -1645,7 +1645,7 @@
1645 1645  )))
1646 1646  
1647 1647  (((
1648 -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)  
1649 1649  )))
1650 1650  
1651 1651  (((
... ... @@ -1681,7 +1681,7 @@
1681 1681  )))
1682 1682  
1683 1683  (((
1684 -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)
1685 1685  )))
1686 1686  
1687 1687  (((
... ... @@ -1725,7 +1725,7 @@
1725 1725  )))
1726 1726  
1727 1727  (((
1728 -AT+VER: Get current image version and Frequency Band
1803 +AT+VER:  Get current image version and Frequency Band
1729 1729  )))
1730 1730  
1731 1731  (((
... ... @@ -1733,7 +1733,7 @@
1733 1733  )))
1734 1734  
1735 1735  (((
1736 -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)
1737 1737  )))
1738 1738  
1739 1739  (((
... ... @@ -1782,40 +1782,42 @@
1782 1782  (((
1783 1783  
1784 1784  
1785 -**If device has not joined network yet:**
1860 +(((
1861 +(% style="color:blue" %)**If device has not joined network yet:**
1786 1786  )))
1863 +)))
1787 1787  
1788 1788  (((
1789 -(% style="background-color:#dcdcdc" %)123456
1866 +(% style="background-color:#dcdcdc" %)**123456**
1790 1790  )))
1791 1791  
1792 1792  (((
1793 -(% style="background-color:#dcdcdc" %)AT+FDR
1870 +(% style="background-color:#dcdcdc" %)**AT+FDR**
1794 1794  )))
1795 1795  
1796 1796  (((
1797 -(% style="background-color:#dcdcdc" %)123456
1874 +(% style="background-color:#dcdcdc" %)**123456**
1798 1798  )))
1799 1799  
1800 1800  (((
1801 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1878 +(% style="background-color:#dcdcdc" %)**AT+NJM=0**
1802 1802  )))
1803 1803  
1804 1804  (((
1805 -(% style="background-color:#dcdcdc" %)ATZ
1882 +(% style="background-color:#dcdcdc" %)**ATZ**
1806 1806  )))
1807 1807  
1808 1808  
1809 1809  (((
1810 -**If device already joined network:**
1887 +(% style="color:blue" %)**If device already joined network:**
1811 1811  )))
1812 1812  
1813 1813  (((
1814 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1891 +(% style="background-color:#dcdcdc" %)**AT+NJM=0**
1815 1815  )))
1816 1816  
1817 1817  (((
1818 -(% style="background-color:#dcdcdc" %)ATZ
1895 +(% style="background-color:#dcdcdc" %)**ATZ**
1819 1819  )))
1820 1820  
1821 1821  
... ... @@ -1825,55 +1825,57 @@
1825 1825  (((
1826 1826  
1827 1827  
1828 -(% style="background-color:#dcdcdc" %)123456(%%)  Enter Password to have AT access.
1905 +(((
1906 +(% style="background-color:#dcdcdc" %)**123456**(%%)  ~/~/ Enter Password to have AT access.
1829 1829  )))
1908 +)))
1830 1830  
1831 1831  (((
1832 -(% 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
1833 1833  )))
1834 1834  
1835 1835  (((
1836 -(% style="background-color:#dcdcdc" %) 123456(%%)  Enter Password to have AT access.
1915 +(% style="background-color:#dcdcdc" %)** 123456**(%%)  ~/~/ Enter Password to have AT access.
1837 1837  )))
1838 1838  
1839 1839  (((
1840 -(% 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
1841 1841  )))
1842 1842  
1843 1843  (((
1844 -(% style="background-color:#dcdcdc" %) AT+NJM=0(%%)  Set to ABP mode
1923 +(% style="background-color:#dcdcdc" %)** AT+NJM=0**(%%)  ~/~/ Set to ABP mode
1845 1845  )))
1846 1846  
1847 1847  (((
1848 -(% 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
1849 1849  )))
1850 1850  
1851 1851  (((
1852 -(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1931 +(% style="background-color:#dcdcdc" %)** AT+DR=5**(%%)  ~/~/ Set Data Rate
1853 1853  )))
1854 1854  
1855 1855  (((
1856 -(% 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
1857 1857  )))
1858 1858  
1859 1859  (((
1860 -(% 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
1861 1861  )))
1862 1862  
1863 1863  (((
1864 -(% 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)
1865 1865  )))
1866 1866  
1867 1867  (((
1868 -(% 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
1869 1869  )))
1870 1870  
1871 1871  (((
1872 -(% 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.
1873 1873  )))
1874 1874  
1875 1875  (((
1876 -(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1955 +(% style="background-color:#dcdcdc" %)** ATZ**         (%%) ~/~/ Reset MCU
1877 1877  
1878 1878  
1879 1879  )))
... ... @@ -1883,11 +1883,15 @@
1883 1883  )))
1884 1884  
1885 1885  (((
1886 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1887 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1888 -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.
1889 -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.**
1890 1890  
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 +
1891 1891  
1892 1892  )))
1893 1893  
... ... @@ -1903,12 +1903,15 @@
1903 1903  === 4.2.3 Change to Class A ===
1904 1904  
1905 1905  
1906 -If sensor JOINED
1907 -(% style="background-color:#dcdcdc" %)AT+CLASS=A
1908 -ATZ
1989 +(((
1990 +(% style="color:blue" %)If sensor JOINED:
1909 1909  
1992 +(% style="background-color:#dcdcdc" %)**AT+CLASS=A
1993 +ATZ**
1994 +)))
1910 1910  
1911 1911  
1997 +
1912 1912  = 5. FAQ =
1913 1913  
1914 1914  
... ... @@ -1928,12 +1928,14 @@
1928 1928  
1929 1929  (((
1930 1930  (% 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]].
1931 -(% 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]].
1932 1932  (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
1933 1933  
1934 1934  
2021 +(((
1935 1935  (% style="color:blue" %)**For LT-22222-L**(%%):
1936 1936  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 +)))
1937 1937  
1938 1938  
1939 1939  )))
... ... @@ -1984,6 +1984,7 @@
1984 1984  (((
1985 1985  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1986 1986  
2075 +
1987 1987  
1988 1988  )))
1989 1989  )))
... ... @@ -1990,10 +1990,14 @@
1990 1990  
1991 1991  (((
1992 1992  (% 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 +
1993 1993  )))
1994 1994  
1995 1995  (((
1996 1996  [[image:1653360231087-571.png||height="401" width="727"]]
2088 +
2089 +
1997 1997  )))
1998 1998  
1999 1999  (((
... ... @@ -2001,21 +2001,23 @@
2001 2001  )))
2002 2002  
2003 2003  
2097 +
2004 2004  (((
2005 2005  (% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2100 +
2101 +
2006 2006  )))
2007 2007  
2008 2008  (((
2009 -(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
2010 -(% style="background-color:#dcdcdc" %)AT+FDR(%%)  Reset Parameters to Factory Default, Keys Reserve
2011 -(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
2012 -(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%) Set to ABP mode
2013 -(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%) Set the Adaptive Data Rate Off
2014 -(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
2015 -(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%) Set transmit interval to 60 seconds
2016 -(% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%)  Set transmit frequency to 868.4Mhz
2017 -(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%)  Set Device Address to 26 01 1A F1
2018 -(% 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
2019 2019  )))
2020 2020  
2021 2021  
... ... @@ -2058,7 +2058,19 @@
2058 2058  
2059 2059  
2060 2060  
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 +
2061 2061  = 6. Trouble Shooting =
2167 +
2168 +
2062 2062  )))
2063 2063  
2064 2064  (((
... ... @@ -2119,6 +2119,7 @@
2119 2119  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2120 2120  
2121 2121  
2229 +
2122 2122  = 8. Packing Info =
2123 2123  
2124 2124  
... ... @@ -2137,6 +2137,7 @@
2137 2137  * Weight / pcs : 170g
2138 2138  
2139 2139  
2248 +
2140 2140  = 9. Support =
2141 2141  
2142 2142  
... ... @@ -2157,5 +2157,3 @@
2157 2157  * 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]]
2158 2158  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2159 2159  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2160 -
2161 -
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