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 < 97.2 >
edited by Xiaoling
on 2022/09/12 09:21
>
Change comment: There is no comment for this version

Summary

Details

Page properties
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  (((
... ... @@ -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
... ... @@ -186,7 +186,6 @@
186 186  
187 187  
188 188  
189 -
190 190  == 1.4  Applications ==
191 191  
192 192  
... ... @@ -200,7 +200,6 @@
200 200  
201 201  
202 202  
203 -
204 204  == 1.5 Hardware Variants ==
205 205  
206 206  
... ... @@ -225,6 +225,8 @@
225 225  
226 226  (((
227 227  PWR will on when device is properly powered.
227 +
228 +
228 228  )))
229 229  
230 230  [[image:1653297104069-180.png]]
... ... @@ -233,6 +233,7 @@
233 233  
234 234  = 3. Operation Mode =
235 235  
237 +
236 236  == 3.1 How it works? ==
237 237  
238 238  
... ... @@ -311,7 +311,6 @@
311 311  
312 312  
313 313  
314 -
315 315  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
316 316  
317 317  
... ... @@ -331,8 +331,10 @@
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
335 335  
336 +
337 +(% style="color:red" %)**Note: DI3 and DO3 bit are not valid for LT-22222-L**
338 +
336 336  For example if payload is: [[image:image-20220523175847-2.png]]
337 337  
338 338  
... ... @@ -351,6 +351,8 @@
351 351  * [1] RO1 relay channel is close and the RO1 LED is ON.
352 352  * [0] RO2 relay channel is open and RO2 LED is OFF;
353 353  
357 +
358 +
354 354  **LT22222-L:**
355 355  
356 356  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -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  (((
... ... @@ -415,6 +415,8 @@
415 415  
416 416  
417 417  (% style="color:#4f81bd" %)**AT Commands for counting:**
423 +
424 +
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.
466 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
460 460  )))
461 461  
462 462  
... ... @@ -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.
510 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
504 504  )))
505 505  
506 506  (((
... ... @@ -561,7 +561,7 @@
561 561  )))
562 562  
563 563  (((
564 -(% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
571 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
565 565  )))
566 566  
567 567  (((
... ... @@ -595,11 +595,16 @@
595 595  * **AT+MOD=1 ** **~-~->**  The normal working mode
596 596  * **AT+ADDMOD6=1**   **~-~->**  Enable trigger
597 597  
605 +
606 +
598 598  LT will keep monitoring AV1/AV2/AC1/AC2 every 5 seconds; LT will send uplink packets in two cases:
599 599  
600 600  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
601 601  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.**
602 602  
612 +
613 +
614 +
603 603  (% style="color:#037691" %)**AT Command to set Trigger Condition**:
604 604  
605 605  
... ... @@ -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  
622 +
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  
635 +
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  
654 +
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**
... ... @@ -680,11 +680,14 @@
680 680  
681 681  * Each bits shows if the corresponding trigger has been configured.
682 682  
698 +
699 +
683 683  **Example:**
684 684  
685 685  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
686 686  
687 687  
705 +
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]]
... ... @@ -691,11 +691,14 @@
691 691  
692 692  * Each bits shows which status has been trigger on this uplink.
693 693  
712 +
713 +
694 694  **Example:**
695 695  
696 696  10000000: Means this packet is trigger by AC1_LOW. Means voltage too low.
697 697  
698 698  
719 +
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]]
... ... @@ -702,6 +702,8 @@
702 702  
703 703  * Each bits shows which status has been trigger on this uplink.
704 704  
726 +
727 +
705 705  **Example:**
706 706  
707 707  00000111: Means both DI1 and DI2 trigger are enabled and this packet is trigger by DI1.
... ... @@ -709,6 +709,7 @@
709 709  00000101: Means both DI1 and DI2 trigger are enabled.
710 710  
711 711  
735 +
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:
... ... @@ -719,6 +719,7 @@
719 719  
720 720  
721 721  
746 +
722 722  === 3.3.7 Payload Decoder ===
723 723  
724 724  (((
... ... @@ -807,6 +807,7 @@
807 807  
808 808  **0x08 FF     **~/~/ Poll an uplink
809 809  
835 +
810 810  **Example**: 0x08FF, ask device to send an Uplink
811 811  
812 812  
... ... @@ -893,6 +893,9 @@
893 893  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
894 894  * **0x09 01 aa bb cc    ** ~/~/ same as AT+TRIG1=aa,0x(bb cc)
895 895  
922 +
923 +
924 +
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
1003 +(% 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.
1031 +(% 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.
1035 +(% 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**:
1080 +(% 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.
1084 +(% 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.
1133 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1105 1105  
1106 1106  
1107 1107  
... ... @@ -1135,9 +1135,9 @@
1135 1135  [[image:image-20220714135731-1.png||height="406" width="627"]]
1136 1136  
1137 1137  
1138 -(% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
1167 +(% 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.
1169 +(% 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  
1264 +
1265 +
1236 1236  
1237 1237  )))
1238 1238  
1269 +==== 3.4.2.20 Reset save DR DO state ====
1239 1239  
1240 1240  
1272 +* (% style="color:#037691" %)**AT Command:**
1273 +
1274 +**AT+RODORET=1  **~/~/ RODO will close when the device joining the network. (default)
1275 +
1276 +**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.
1277 +
1278 +
1279 +* (% style="color:#037691" %)**Downlink Payload (prefix 0xAD):**
1280 +
1281 +**0x AD aa      **~/~/ same as AT+RODORET =aa
1282 +
1283 +(((
1284 +
1285 +
1286 +
1287 +
1288 +==== 3.4.2.21 Encrypted payload ====
1289 +
1290 +
1291 +* (% style="color:#037691" %)**AT Command:**
1292 +
1293 +**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
1294 +
1295 +**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
1296 +
1297 +
1298 +
1299 +
1300 +==== 3.4.2.22 Get sensor value ====
1301 +
1302 +
1303 +* (% style="color:#037691" %)**AT Command:**
1304 +
1305 +**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
1306 +
1307 +**AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
1308 +
1309 +
1310 +
1311 +
1312 +==== 3.4.2.23 Resets the downlink packet count ====
1313 +
1314 +
1315 +* (% style="color:#037691" %)**AT Command:**
1316 +
1317 +**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)
1318 +
1319 +**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.
1320 +
1321 +
1322 +
1323 +
1324 +==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1325 +
1326 +
1327 +* (% style="color:#037691" %)**AT Command:**
1328 +
1329 + **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)
1330 +
1331 + **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.
1332 +
1333 +
1334 +* (% style="color:#037691" %)**Downlink Payload **(%%)**:**
1335 +
1336 +**0x21 00 01 ** ~/~/ Set  the DISMACANS=1
1337 +
1338 +
1339 +
1340 +
1341 +==== 3.4.2.25 Copy downlink to uplink ====
1342 +
1343 +
1344 +* (% style="color:#037691" %)**AT Command**(%%)**:**
1345 +
1346 + **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.
1347 +
1348 +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.
1349 +
1350 +[[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"]]
1351 +
1352 +For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1353 +
1354 +[[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"]]
1355 +
1356 +For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1357 +
1358 +
1359 +
1360 +==== 3.4.2.26 Query version number and frequency band 、TDC ====
1361 +
1362 +
1363 +* (((
1364 +(% style="color:#037691" %)**Downlink Payload**(%%)**:**
1365 +
1366 +**26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1367 +
1368 +
1369 +)))
1370 +
1371 +**Example：**
1372 +
1373 +[[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"]]
1374 +
1375 +
1376 +
1377 +)))
1378 +
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-
1477 +Connect sensor's output to DI1-
1340 1340  )))
1341 1341  * (((
1342 -Connect sensor’s VCC to DI1+.
1480 +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.**
1488 +[[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.
1492 +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+
1510 +Connect sensor's output to DI1+
1373 1373  )))
1374 1374  * (((
1375 -Connect sensor’s GND DI1-.
1513 +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
1543 +Connect sensor's output to DI1+ with a serial 50K resistor
1406 1406  )))
1407 1407  * (((
1408 -Connect sensor’s GND DI1-.
1546 +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  
1613 +
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
1946 +
1947 +
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/]].
1987 +(% 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  
2043 +
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.
2050 +
2051 +
1908 1908  )))
1909 1909  
1910 1910  (((
1911 1911  [[image:1653360231087-571.png||height="401" width="727"]]
2056 +
2057 +
1912 1912  )))
1913 1913  
1914 1914  (((
... ... @@ -1916,8 +1916,11 @@
1916 1916  )))
1917 1917  
1918 1918  
2065 +
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:
2068 +
2069 +
1921 1921  )))
1922 1922  
1923 1923  (((
... ... @@ -1974,6 +1974,8 @@
1974 1974  
1975 1975  
1976 1976  = 6. Trouble Shooting =
2126 +
2127 +
1977 1977  )))
1978 1978  
1979 1979  (((
... ... @@ -2034,6 +2034,8 @@
2034 2034  * (% style="color:red" %)**CN779**(%%):  LT with frequency bands CN779
2035 2035  
2036 2036  
2188 +
2189 +
2037 2037  = 8. Packing Info =
2038 2038  
2039 2039  
... ... @@ -2052,6 +2052,8 @@
2052 2052  * Weight / pcs : 170g
2053 2053  
2054 2054  
2208 +
2209 +
2055 2055  = 9. Support =
2056 2056  
2057 2057  

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