Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 90.11 >
edited by Xiaoling
on 2022/08/18 13:48
To version < 101.2 >
edited by Xiaoling
on 2022/10/13 16:38
>
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
... ... @@ -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  
... ... @@ -217,7 +217,6 @@
217 217  
218 218  
219 219  
220 -
221 221  = 2. Power ON Device =
222 222  
223 223  
... ... @@ -225,6 +225,8 @@
225 225  
226 226  (((
227 227  PWR will on when device is properly powered.
224 +
225 +
228 228  )))
229 229  
230 230  [[image:1653297104069-180.png]]
... ... @@ -233,6 +233,7 @@
233 233  
234 234  = 3. Operation Mode =
235 235  
234 +
236 236  == 3.1 How it works? ==
237 237  
238 238  
... ... @@ -310,8 +310,6 @@
310 310  
311 311  
312 312  
313 -
314 -
315 315  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
316 316  
317 317  
... ... @@ -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
331 +(% 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  
... ... @@ -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  
351 +
352 +
354 354  **LT22222-L:**
355 355  
356 356  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -367,9 +367,6 @@
367 367  ** DO1 LED is off in both case
368 368  
369 369  
370 -
371 -
372 -
373 373  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
374 374  
375 375  
... ... @@ -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.
392 +(% 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:**
414 +
415 +
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.
457 +(% 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.
501 +(% 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.
562 +(% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
565 565  )))
566 566  
567 567  (((
... ... @@ -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  
608 +
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  
621 +
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  
640 +
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  
689 +
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  
701 +
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  
715 +
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:
... ... @@ -719,12 +719,13 @@
719 719  
720 720  
721 721  
726 +
722 722  === 3.3.7 Payload Decoder ===
723 723  
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]]
732 +**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  
... ... @@ -744,7 +744,6 @@
744 744  
745 745  
746 746  
747 -
748 748  === 3.4.1 Common Commands ===
749 749  
750 750  
... ... @@ -807,6 +807,7 @@
807 807  
808 808  **0x08 FF     **~/~/ Poll an uplink
809 809  
814 +
810 810  **Example**: 0x08FF, ask device to send an Uplink
811 811  
812 812  
... ... @@ -895,8 +895,6 @@
895 895  
896 896  
897 897  
898 -
899 -
900 900  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
901 901  
902 902  
... ... @@ -975,7 +975,7 @@
975 975  (((
976 976  
977 977  
978 -(% style="color:red" %)Note: ATDC setting must be more than 5min
981 +(% style="color:red" %)**Note: ATDC setting must be more than 5min**
979 979  )))
980 980  
981 981  
... ... @@ -1003,11 +1003,11 @@
1003 1003  [[image:image-20220524092754-5.png]]
1004 1004  
1005 1005  (((
1006 -(% style="color:red" %)Note: For LT-22222-L, there is no DO3, the last byte can use any value.
1009 +(% style="color:red" %)**Note: For LT-22222-L, there is no DO3, the last byte can use any value.**
1007 1007  )))
1008 1008  
1009 1009  (((
1010 -(% style="color:red" %)Device will upload a packet if downlink code executes successfully.
1013 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1011 1011  )))
1012 1012  
1013 1013  
... ... @@ -1052,11 +1052,11 @@
1052 1052  [[image:image-20220524093351-8.png]]
1053 1053  
1054 1054  
1055 -(% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
1058 +(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:
1056 1056  
1057 1057   Latching time. Unit: ms
1058 1058  
1059 -Device will upload a packet if downlink code executes successfully.
1062 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1060 1060  
1061 1061  
1062 1062  **Example payload:**
... ... @@ -1105,7 +1105,7 @@
1105 1105  [[image:image-20220524093724-9.png]]
1106 1106  )))
1107 1107  
1108 -Device will upload a packet if downlink code executes successfully.
1111 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1109 1109  
1110 1110  
1111 1111  
... ... @@ -1136,12 +1136,12 @@
1136 1136  
1137 1137  (% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1138 1138  
1139 -[[image:image-20220714135731-1.png||height="406" width="627"]]
1142 +[[image:image-20221008095908-1.png||height="364" width="564"]]
1140 1140  
1141 1141  
1142 -(% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
1145 +(% style="color:#4f81bd" %)**Fourth/Fifth/Sixth/Seventh Bytes(cc)**(%%): Latching time. Unit: ms
1143 1143  
1144 -Device will upload a packet if downlink code executes successfully.
1147 +(% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1145 1145  
1146 1146  
1147 1147  **Example payload:**
... ... @@ -1164,7 +1164,6 @@
1164 1164  
1165 1165  
1166 1166  
1167 -
1168 1168  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1169 1169  
1170 1170  
... ... @@ -1237,11 +1237,124 @@
1237 1237  (((
1238 1238  range: aa bb cc:0 to 16777215,  (unit:second)
1239 1239  
1242 +
1243 +
1240 1240  
1241 1241  )))
1242 1242  
1247 +==== 3.4.2.20 Reset save DR DO state ====
1243 1243  
1244 1244  
1250 +* (% style="color:#037691" %)**AT Command:**
1251 +
1252 +**AT+RODORET=1  **~/~/ RODO will close when the device joining the network. (default)
1253 +
1254 +**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.
1255 +
1256 +
1257 +* (% style="color:#037691" %)**Downlink Payload (prefix 0xAD):**
1258 +
1259 +**0x AD aa      **~/~/ same as AT+RODORET =aa
1260 +
1261 +(((
1262 +
1263 +
1264 +
1265 +
1266 +==== 3.4.2.21 Encrypted payload ====
1267 +
1268 +
1269 +* (% style="color:#037691" %)**AT Command:**
1270 +
1271 +**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
1272 +
1273 +**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
1274 +
1275 +
1276 +
1277 +
1278 +==== 3.4.2.22 Get sensor value ====
1279 +
1280 +
1281 +* (% style="color:#037691" %)**AT Command:**
1282 +
1283 +**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
1284 +
1285 +**AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
1286 +
1287 +
1288 +
1289 +
1290 +==== 3.4.2.23 Resets the downlink packet count ====
1291 +
1292 +
1293 +* (% style="color:#037691" %)**AT Command:**
1294 +
1295 +**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)
1296 +
1297 +**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.
1298 +
1299 +
1300 +
1301 +
1302 +==== 3.4.2.24 When the limit bytes are exceeded, upload in batches ====
1303 +
1304 +
1305 +* (% style="color:#037691" %)**AT Command:**
1306 +
1307 + **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)
1308 +
1309 + **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.
1310 +
1311 +
1312 +* (% style="color:#037691" %)**Downlink Payload **(%%)**:**
1313 +
1314 +**0x21 00 01 ** ~/~/ Set  the DISMACANS=1
1315 +
1316 +
1317 +
1318 +
1319 +==== 3.4.2.25 Copy downlink to uplink ====
1320 +
1321 +
1322 +* (% style="color:#037691" %)**AT Command**(%%)**:**
1323 +
1324 + **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.
1325 +
1326 +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.
1327 +
1328 +
1329 +[[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"]]
1330 +
1331 +For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1332 +
1333 +
1334 +
1335 +[[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"]]
1336 +
1337 +For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1338 +
1339 +
1340 +
1341 +==== 3.4.2.26 Query version number and frequency band 、TDC ====
1342 +
1343 +
1344 +* (((
1345 +(% style="color:#037691" %)**Downlink Payload**(%%)**:**
1346 +
1347 +**26 01  ** ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1348 +
1349 +
1350 +)))
1351 +
1352 +**Example：**
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-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
1355 +
1356 +
1357 +
1358 +)))
1359 +
1245 1245  == 3.5 Integrate with Mydevice ==
1246 1246  
1247 1247  
... ... @@ -1340,10 +1340,10 @@
1340 1340  )))
1341 1341  
1342 1342  * (((
1343 -Connect sensor’s output to DI1-
1458 +Connect sensor's output to DI1-
1344 1344  )))
1345 1345  * (((
1346 -Connect sensor’s VCC to DI1+.
1461 +Connect sensor's VCC to DI1+.
1347 1347  )))
1348 1348  
1349 1349  (((
... ... @@ -1351,11 +1351,11 @@
1351 1351  )))
1352 1352  
1353 1353  (((
1354 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1469 +[[image:1653968155772-850.png||height="23" width="19"]]**= DI1**+** / 1K.**
1355 1355  )))
1356 1356  
1357 1357  (((
1358 -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.
1473 +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.
1359 1359  )))
1360 1360  
1361 1361  (((
... ... @@ -1373,10 +1373,10 @@
1373 1373  )))
1374 1374  
1375 1375  * (((
1376 -Connect sensor’s output to DI1+
1491 +Connect sensor's output to DI1+
1377 1377  )))
1378 1378  * (((
1379 -Connect sensor’s GND DI1-.
1494 +Connect sensor's GND DI1-.
1380 1380  )))
1381 1381  
1382 1382  (((
... ... @@ -1406,10 +1406,10 @@
1406 1406  )))
1407 1407  
1408 1408  * (((
1409 -Connect sensor’s output to DI1+ with a serial 50K resistor
1524 +Connect sensor's output to DI1+ with a serial 50K resistor
1410 1410  )))
1411 1411  * (((
1412 -Connect sensor’s GND DI1-.
1527 +Connect sensor's GND DI1-.
1413 1413  )))
1414 1414  
1415 1415  (((
... ... @@ -1476,6 +1476,7 @@
1476 1476  
1477 1477  [[image:image-20220524100215-9.png]]
1478 1478  
1594 +
1479 1479  [[image:image-20220524100215-10.png||height="382" width="723"]]
1480 1480  
1481 1481  
... ... @@ -1849,7 +1849,7 @@
1849 1849  
1850 1850  (((
1851 1851  (% 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]].
1852 -(% 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/]].
1968 +(% 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]].
1853 1853  (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
1854 1854  
1855 1855  
... ... @@ -1905,6 +1905,7 @@
1905 1905  (((
1906 1906  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1907 1907  
2024 +
1908 1908  
1909 1909  )))
1910 1910  )))
... ... @@ -1911,10 +1911,14 @@
1911 1911  
1912 1912  (((
1913 1913  (% 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.
2031 +
2032 +
1914 1914  )))
1915 1915  
1916 1916  (((
1917 1917  [[image:1653360231087-571.png||height="401" width="727"]]
2037 +
2038 +
1918 1918  )))
1919 1919  
1920 1920  (((
... ... @@ -1922,8 +1922,11 @@
1922 1922  )))
1923 1923  
1924 1924  
2046 +
1925 1925  (((
1926 1926  (% style="color:blue" %)**Step2**(%%)**:  **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
2049 +
2050 +
1927 1927  )))
1928 1928  
1929 1929  (((
... ... @@ -1978,8 +1978,17 @@
1978 1978  After restart, the status before power failure will be read from flash.
1979 1979  
1980 1980  
2105 +== 5.7 Can i set up LT-22222-L as a NC(Normal Close) Relay? ==
1981 1981  
2107 +LT-22222-L built-in relay is NO (Normal Open). User can use an external relay to achieve Normal Close purpose. Diagram as below:
2108 +
2109 +[[image:image-20221006170630-1.png||height="610" width="945"]]
2110 +
2111 +
2112 +
1982 1982  = 6. Trouble Shooting =
2114 +
2115 +
1983 1983  )))
1984 1984  
1985 1985  (((
... ... @@ -2080,5 +2080,3 @@
2080 2080  * 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]]
2081 2081  * [[Datasheet, Document Base>>https://www.dropbox.com/sh/gxxmgks42tqfr3a/AACEdsj_mqzeoTOXARRlwYZ2a?dl=0]]
2082 2082  * [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
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