<
From version < 90.4 >
edited by Xiaoling
on 2022/08/18 11:52
To version < 101.1 >
edited by Bei Jinggeng
on 2022/10/08 09:59
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
... ... @@ -15,6 +15,7 @@
15 15  
16 16  = 1.Introduction =
17 17  
18 +
18 18  == 1.1 What is LT Series I/O Controller ==
19 19  
20 20  (((
... ... @@ -36,7 +36,7 @@
36 36  )))
37 37  
38 38  (((
39 -1) If users area has LoRaWAN service coverage, they can just install the I/O controller and configure it to connect the LoRaWAN provider via wireless.
40 +1) If user's area has LoRaWAN service coverage, they can just install the I/O controller and configure it to connect the LoRaWAN provider via wireless.
40 40  )))
41 41  
42 42  (((
... ... @@ -57,7 +57,7 @@
57 57  (((
58 58  
59 59  
60 -**Hardware System:**
61 +(% 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:**
86 +(% 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:**
111 +(% 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
181 +* 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
... ... @@ -184,8 +184,6 @@
184 184  * Counting
185 185  
186 186  
187 -
188 -
189 189  == 1.4  Applications ==
190 190  
191 191  
... ... @@ -197,8 +197,6 @@
197 197  * Smart Factory
198 198  
199 199  
200 -
201 -
202 202  == 1.5 Hardware Variants ==
203 203  
204 204  
... ... @@ -214,7 +214,6 @@
214 214  )))
215 215  
216 216  
217 -
218 218  = 2. Power ON Device =
219 219  
220 220  
... ... @@ -222,6 +222,8 @@
222 222  
223 223  (((
224 224  PWR will on when device is properly powered.
221 +
222 +
225 225  )))
226 226  
227 227  [[image:1653297104069-180.png]]
... ... @@ -230,6 +230,7 @@
230 230  
231 231  = 3. Operation Mode =
232 232  
231 +
233 233  == 3.1 How it works? ==
234 234  
235 235  
... ... @@ -306,8 +306,6 @@
306 306  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
307 307  
308 308  
309 -
310 -
311 311  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
312 312  
313 313  
... ... @@ -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
327 +(% 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  
... ... @@ -347,7 +347,6 @@
347 347  * [1] RO1 relay channel is close and the RO1 LED is ON.
348 348  * [0] RO2 relay channel is open and RO2 LED is OFF;
349 349  
350 -
351 351  **LT22222-L:**
352 352  
353 353  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -365,7 +365,6 @@
365 365  
366 366  
367 367  
368 -
369 369  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
370 370  
371 371  
... ... @@ -389,7 +389,7 @@
389 389  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
390 390  
391 391  (((
392 -(% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
387 +(% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
393 393  )))
394 394  
395 395  (((
... ... @@ -411,6 +411,8 @@
411 411  
412 412  
413 413  (% style="color:#4f81bd" %)**AT Commands for counting:**
409 +
410 +
414 414  )))
415 415  
416 416  (((
... ... @@ -452,7 +452,7 @@
452 452  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
453 453  
454 454  (((
455 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
452 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
456 456  )))
457 457  
458 458  
... ... @@ -496,7 +496,7 @@
496 496  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
497 497  
498 498  (((
499 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
496 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
500 500  )))
501 501  
502 502  (((
... ... @@ -557,7 +557,7 @@
557 557  )))
558 558  
559 559  (((
560 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
557 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
561 561  )))
562 562  
563 563  (((
... ... @@ -596,6 +596,7 @@
596 596  1. Periodically uplink (Base on TDC time). Payload is same as the normal MOD (MOD 1 for above command). This uplink uses LoRaWAN (% style="color:#4f81bd" %)**unconfirmed**(%%) data type
597 597  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 (% style="color:#4f81bd" %)**CONFIRMED data type.**
598 598  
596 +
599 599  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
600 600  
601 601  
... ... @@ -603,6 +603,7 @@
603 603  
604 604  Format: AT+AVLIM=<AV1_LIMIT_LOW>,< AV1_LIMIT_HIGH>,<AV2_LIMIT_LOW>,< AV2_LIMIT_HIGH>
605 605  
604 +
606 606  **Example:**
607 607  
608 608  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)
... ... @@ -615,6 +615,7 @@
615 615  
616 616  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
617 617  
617 +
618 618  **Example:**
619 619  
620 620  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
... ... @@ -633,6 +633,7 @@
633 633  AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
634 634  
635 635  
636 +
636 636  (% style="color:#037691" %)**Downlink Command to set Trigger Condition:**
637 637  
638 638  Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
... ... @@ -681,6 +681,7 @@
681 681  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
682 682  
683 683  
685 +
684 684  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
685 685  
686 686  [[image:image-20220524090249-3.png]]
... ... @@ -692,6 +692,7 @@
692 692  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
693 693  
694 694  
697 +
695 695  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
696 696  
697 697  [[image:image-20220524090456-4.png]]
... ... @@ -705,6 +705,7 @@
705 705  00000101: Means both DI1 and DI2 trigger are enabled.
706 706  
707 707  
711 +
708 708  (% style="color:#4f81bd" %)**Enable/Disable MOD6 **(%%): 0x01: MOD6 is enable. 0x00: MOD6 is disable.
709 709  
710 710  Downlink command to poll MOD6 status:
... ... @@ -715,17 +715,17 @@
715 715  
716 716  
717 717  
722 +
718 718  === 3.3.7 Payload Decoder ===
719 719  
720 720  (((
721 721  
722 722  
723 -**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/]]
724 -
725 -
728 +**Decoder for TTN/loraserver/ChirpStack**:  [[https:~~/~~/www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0>>https://www.dropbox.com/sh/wtrzu7avdtkmn3z/AACK5NwOMkU9jnvf1uCMuqrVa?dl=0]]
726 726  )))
727 727  
728 728  
732 +
729 729  == 3.4 ​Configure LT via AT or Downlink ==
730 730  
731 731  
... ... @@ -740,8 +740,6 @@
740 740  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
741 741  
742 742  
743 -
744 -
745 745  === 3.4.1 Common Commands ===
746 746  
747 747  
... ... @@ -804,6 +804,7 @@
804 804  
805 805  **0x08 FF     **~/~/ Poll an uplink
806 806  
809 +
807 807  **Example**: 0x08FF, ask device to send an Uplink
808 808  
809 809  
... ... @@ -891,8 +891,6 @@
891 891  * **0x09 01 aa bb cc    ** ~/~/ same as AT+TRIG1=aa,0x(bb cc)
892 892  
893 893  
894 -
895 -
896 896  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
897 897  
898 898  
... ... @@ -971,7 +971,7 @@
971 971  (((
972 972  
973 973  
974 -(% style="color:red" %)Note: ATDC setting must be more than 5min
975 +(% 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.
1003 +(% 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.
1007 +(% 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**:
1052 +(% 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.
1056 +(% 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.
1105 +(% 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"]]
1136 +[[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
1139 +(% 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.
1141 +(% 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 +1233,121 @@
1233 1233  (((
1234 1234  range: aa bb cc:0 to 16777215,  (unit:second)
1235 1235  
1236 +
1237 +
1236 1236  
1237 1237  )))
1238 1238  
1241 +==== 3.4.2.20 Reset save DR DO state ====
1239 1239  
1240 1240  
1244 +* (% style="color:#037691" %)**AT Command:**
1245 +
1246 +**AT+RODORET=1  **~/~/ RODO will close when the device joining the network. (default)
1247 +
1248 +**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.
1249 +
1250 +
1251 +* (% style="color:#037691" %)**Downlink Payload (prefix 0xAD):**
1252 +
1253 +**0x AD aa      **~/~/ same as AT+RODORET =aa
1254 +
1255 +(((
1256 +
1257 +
1258 +
1259 +
1260 +==== 3.4.2.21 Encrypted payload ====
1261 +
1262 +
1263 +* (% style="color:#037691" %)**AT Command:**
1264 +
1265 +**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
1266 +
1267 +**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
1268 +
1269 +
1270 +
1271 +
1272 +==== 3.4.2.22 Get sensor value ====
1273 +
1274 +
1275 +* (% style="color:#037691" %)**AT Command:**
1276 +
1277 +**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
1278 +
1279 +**AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
1280 +
1281 +
1282 +
1283 +
1284 +==== 3.4.2.23 Resets the downlink packet count ====
1285 +
1286 +
1287 +* (% style="color:#037691" %)**AT Command:**
1288 +
1289 +**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)
1290 +
1291 +**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.
1292 +
1293 +
1294 +
1295 +
1296 +==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1297 +
1298 +
1299 +* (% style="color:#037691" %)**AT Command:**
1300 +
1301 + **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)
1302 +
1303 + **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.
1304 +
1305 +
1306 +* (% style="color:#037691" %)**Downlink Payload **(%%)**:**
1307 +
1308 +**0x21 00 01 ** ~/~/ Set  the DISMACANS=1
1309 +
1310 +
1311 +
1312 +
1313 +==== 3.4.2.25 Copy downlink to uplink ====
1314 +
1315 +
1316 +* (% style="color:#037691" %)**AT Command**(%%)**:**
1317 +
1318 + **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.
1319 +
1320 +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.
1321 +
1322 +[[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"]]
1323 +
1324 +For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1325 +
1326 +[[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"]]
1327 +
1328 +For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1329 +
1330 +
1331 +
1332 +==== 3.4.2.26 Query version number and frequency band 、TDC ====
1333 +
1334 +
1335 +* (((
1336 +(% style="color:#037691" %)**Downlink Payload**(%%)**:**
1337 +
1338 +**26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1339 +
1340 +
1341 +)))
1342 +
1343 +**Example:**
1344 +
1345 +[[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"]]
1346 +
1347 +
1348 +
1349 +)))
1350 +
1241 1241  == 3.5 Integrate with Mydevice ==
1242 1242  
1243 1243  
... ... @@ -1336,10 +1336,10 @@
1336 1336  )))
1337 1337  
1338 1338  * (((
1339 -Connect sensors output to DI1-
1449 +Connect sensor's output to DI1-
1340 1340  )))
1341 1341  * (((
1342 -Connect sensors VCC to DI1+.
1452 +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.**
1460 +[[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.
1464 +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 sensors output to DI1+
1482 +Connect sensor's output to DI1+
1373 1373  )))
1374 1374  * (((
1375 -Connect sensors GND DI1-.
1485 +Connect sensor's GND DI1-.
1376 1376  )))
1377 1377  
1378 1378  (((
... ... @@ -1402,10 +1402,10 @@
1402 1402  )))
1403 1403  
1404 1404  * (((
1405 -Connect sensors output to DI1+ with a serial 50K resistor
1515 +Connect sensor's output to DI1+ with a serial 50K resistor
1406 1406  )))
1407 1407  * (((
1408 -Connect sensors GND DI1-.
1518 +Connect sensor's GND DI1-.
1409 1409  )))
1410 1410  
1411 1411  (((
... ... @@ -1472,6 +1472,7 @@
1472 1472  
1473 1473  [[image:image-20220524100215-9.png]]
1474 1474  
1585 +
1475 1475  [[image:image-20220524100215-10.png||height="382" width="723"]]
1476 1476  
1477 1477  
... ... @@ -1804,6 +1804,8 @@
1804 1804  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1805 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 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
1918 +
1919 +
1807 1807  )))
1808 1808  
1809 1809  (((
... ... @@ -1843,7 +1843,7 @@
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/]].
1959 +(% 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  
... ... @@ -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  
2015 +
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.
2022 +
2023 +
1908 1908  )))
1909 1909  
1910 1910  (((
1911 1911  [[image:1653360231087-571.png||height="401" width="727"]]
2028 +
2029 +
1912 1912  )))
1913 1913  
1914 1914  (((
... ... @@ -1916,8 +1916,11 @@
1916 1916  )))
1917 1917  
1918 1918  
2037 +
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:
2040 +
2041 +
1921 1921  )))
1922 1922  
1923 1923  (((
... ... @@ -1972,8 +1972,18 @@
1972 1972  After restart, the status before power failure will be read from flash.
1973 1973  
1974 1974  
2096 +== 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
1975 1975  
2098 +LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
2099 +
2100 +[[image:image-20221006170630-1.png||height="610" width="945"]]
2101 +
2102 +
2103 +
2104 +
1976 1976  = 6. Trouble Shooting =
2106 +
2107 +
1977 1977  )))
1978 1978  
1979 1979  (((
... ... @@ -2034,9 +2034,6 @@
2034 2034  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2035 2035  
2036 2036  
2037 -
2038 -
2039 -
2040 2040  = 8. Packing Info =
2041 2041  
2042 2042  
... ... @@ -2055,9 +2055,6 @@
2055 2055  * Weight / pcs : 170g
2056 2056  
2057 2057  
2058 -
2059 -
2060 -
2061 2061  = 9. Support =
2062 2062  
2063 2063  
... ... @@ -2069,7 +2069,6 @@
2069 2069  
2070 2070  
2071 2071  
2072 -
2073 2073  
2074 2074  )))
2075 2075  
... ... @@ -2079,6 +2079,3 @@
2079 2079  * 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]]
2080 2080  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2081 2081  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
2082 -
2083 -
2084 -
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