Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 57.2 >
edited by Xiaoling
on 2022/05/24 10:14
To version < 55.1 >
edited by Xiaoling
on 2022/05/24 10:07
>
Change comment: Uploaded new attachment "image-20220524100748-11.png", version {1}

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... ... @@ -1116,9 +1116,9 @@
1116 1116  
1117 1117  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1118 1118  
1119 -[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1119 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1120 1120  
1121 -If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1121 +If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1122 1122  
1123 1123  
1124 1124  **Example3**: Connect to a 220v high active sensor.
... ... @@ -1130,9 +1130,9 @@
1130 1130  
1131 1131  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1132 1132  
1133 - [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1133 + [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1134 1134  
1135 -If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1135 +If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %) [[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1136 1136  
1137 1137  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1138 1138  
... ... @@ -1169,219 +1169,166 @@
1169 1169  
1170 1170  === 3.6.5 Relay Output ===
1171 1171  
1172 -(((
1173 1173  The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
1174 -)))
1175 1175  
1174 +
1176 1176  [[image:image-20220524100215-9.png]]
1177 1177  
1177 +
1178 1178  [[image:image-20220524100215-10.png||height="382" width="723"]]
1179 1179  
1180 -== 3.7 LEDs Indicators ==
1181 1181  
1182 -[[image:image-20220524100748-11.png]]
1183 1183  
1184 -= 4. Use AT Command =
1185 1185  
1186 -== 4.1 Access AT Command ==
1187 1187  
1184 +
1185 +1.
1186 +11. LEDs Indicators
1187 +
1188 +(% border="1" style="background-color:#f7faff" %)
1189 +|**LEDs**|**Feature**
1190 +|**PWR**|Always on if there is power
1191 +|**SYS**|After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
1192 +|**TX**|(((
1193 +Device boot: TX blinks 5 times.
1194 +
1195 +Successful join network: TX ON for 5 seconds.
1196 +
1197 +Transmit a LoRa packet: TX blinks once
1198 +)))
1199 +|**RX**|RX blinks once when receive a packet.
1200 +|**DO1**|
1201 +|**DO2**|
1202 +|**DO3**|
1203 +|**DI2**|(((
1204 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1205 +
1206 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1207 +)))
1208 +|**DI2**|(((
1209 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1210 +
1211 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1212 +)))
1213 +|**DI3**|For LT-33222-L ONLY: ON when DI3 is low, LOW when DI3 is high
1214 +|**DI2**|(((
1215 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1216 +
1217 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1218 +)))
1219 +|**RO1**|
1220 +|**RO2**|
1221 +
1222 +1. Use AT Command
1223 +11. Access AT Command
1224 +
1188 1188  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.
1189 1189  
1190 -[[image:1653358238933-385.png]]
1227 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1191 1191  
1192 -In PC, User needs to set (% style="color:#4f81bd" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LT. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**)(%%) to active it. As shown below:
1193 1193  
1194 -[[image:1653358355238-883.png]]
1230 +In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console for LT. The AT commands are disable by default and need to enter password (default:**123456**) to active it. As shown below:
1195 1195  
1232 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1233 +
1234 +
1196 1196  More detail AT Command manual can be found at [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1197 1197  
1198 -(((
1199 1199  AT+<CMD>?        : Help on <CMD>
1200 -)))
1201 1201  
1202 -(((
1203 1203  AT+<CMD>         : Run <CMD>
1204 -)))
1205 1205  
1206 -(((
1207 1207  AT+<CMD>=<value> : Set the value
1208 -)))
1209 1209  
1210 -(((
1211 1211  AT+<CMD>=?       : Get the value
1212 -)))
1213 1213  
1214 -(((
1215 1215  ATZ: Trig a reset of the MCU
1216 -)))
1217 1217  
1218 -(((
1219 1219  AT+FDR: Reset Parameters to Factory Default, Keys Reserve 
1220 -)))
1221 1221  
1222 -(((
1223 1223  AT+DEUI: Get or Set the Device EUI
1224 -)))
1225 1225  
1226 -(((
1227 1227  AT+DADDR: Get or Set the Device Address
1228 -)))
1229 1229  
1230 -(((
1231 1231  AT+APPKEY: Get or Set the Application Key
1232 -)))
1233 1233  
1234 -(((
1235 1235  AT+NWKSKEY: Get or Set the Network Session Key
1236 -)))
1237 1237  
1238 -(((
1239 1239  AT+APPSKEY: Get or Set the Application Session Key
1240 -)))
1241 1241  
1242 -(((
1243 1243  AT+APPEUI: Get or Set the Application EUI
1244 -)))
1245 1245  
1246 -(((
1247 1247  AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1248 -)))
1249 1249  
1250 -(((
1251 1251  AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1252 -)))
1253 1253  
1254 -(((
1255 1255  AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1256 -)))
1257 1257  
1258 -(((
1259 1259  AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1260 -)))
1261 1261  
1262 -(((
1263 1263  AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1264 -)))
1265 1265  
1266 -(((
1267 1267  AT+RX2FQ: Get or Set the Rx2 window frequency
1268 -)))
1269 1269  
1270 -(((
1271 1271  AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1272 -)))
1273 1273  
1274 -(((
1275 1275  AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1276 -)))
1277 1277  
1278 -(((
1279 1279  AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1280 -)))
1281 1281  
1282 -(((
1283 1283  AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1284 -)))
1285 1285  
1286 -(((
1287 1287  AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1288 -)))
1289 1289  
1290 -(((
1291 1291  AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1292 -)))
1293 1293  
1294 -(((
1295 1295  AT+NWKID: Get or Set the Network ID
1296 -)))
1297 1297  
1298 -(((
1299 1299  AT+FCU: Get or Set the Frame Counter Uplink
1300 -)))
1301 1301  
1302 -(((
1303 1303  AT+FCD: Get or Set the Frame Counter Downlink
1304 -)))
1305 1305  
1306 -(((
1307 1307  AT+CLASS: Get or Set the Device Class
1308 -)))
1309 1309  
1310 -(((
1311 1311  AT+JOIN: Join network
1312 -)))
1313 1313  
1314 -(((
1315 1315  AT+NJS: Get OTAA Join Status
1316 -)))
1317 1317  
1318 -(((
1319 1319  AT+SENDB: Send hexadecimal data along with the application port
1320 -)))
1321 1321  
1322 -(((
1323 1323  AT+SEND: Send text data along with the application port
1324 -)))
1325 1325  
1326 -(((
1327 1327  AT+RECVB: Print last received data in binary format (with hexadecimal values)
1328 -)))
1329 1329  
1330 -(((
1331 1331  AT+RECV: Print last received data in raw format
1332 -)))
1333 1333  
1334 -(((
1335 1335  AT+VER: Get current image version and Frequency Band
1336 -)))
1337 1337  
1338 -(((
1339 1339  AT+CFM: Get or Set the confirmation mode (0-1)
1340 -)))
1341 1341  
1342 -(((
1343 1343  AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1344 -)))
1345 1345  
1346 -(((
1347 1347  AT+SNR: Get the SNR of the last received packet
1348 -)))
1349 1349  
1350 -(((
1351 1351  AT+RSSI: Get the RSSI of the last received packet
1352 -)))
1353 1353  
1354 -(((
1355 1355  AT+TDC: Get or set the application data transmission interval in ms
1356 -)))
1357 1357  
1358 -(((
1359 1359  AT+PORT: Get or set the application port
1360 -)))
1361 1361  
1362 -(((
1363 1363  AT+DISAT: Disable AT commands
1364 -)))
1365 1365  
1366 -(((
1367 1367  AT+PWORD: Set password, max 9 digits
1368 -)))
1369 1369  
1370 -(((
1371 1371  AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1372 -)))
1373 1373  
1374 -(((
1375 1375  AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1376 -)))
1377 1377  
1378 -(((
1379 1379  AT+CFG: Print all settings
1380 -)))
1381 1381  
1382 1382  
1383 1383  
1384 -1.
1331 +1.
1385 1385  11. Common AT Command Sequence
1386 1386  111. Multi-channel ABP mode (Use with SX1301/LG308)
1387 1387  
... ... @@ -1404,8 +1404,8 @@
1404 1404  
1405 1405  ATZ
1406 1406  
1407 -1.
1408 -11.
1354 +1.
1355 +11.
1409 1409  111. Single-channel ABP mode (Use with LG01/LG02)
1410 1410  
1411 1411  123456   Enter Password to have AT access.
... ... @@ -1445,7 +1445,7 @@
1445 1445  
1446 1446  
1447 1447  1.
1448 -11.
1395 +11.
1449 1449  111. Change to Class A
1450 1450  
1451 1451  If sensor JOINED
... ... @@ -1460,7 +1460,7 @@
1460 1460  
1461 1461  1. FAQ
1462 1462  
1463 -1.
1410 +1.
1464 1464  11. How to upgrade the image?
1465 1465  
1466 1466  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
... ... @@ -1519,7 +1519,7 @@
1519 1519  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1520 1520  
1521 1521  
1522 -1.
1469 +1.
1523 1523  11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1524 1524  
1525 1525  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
... ... @@ -1578,7 +1578,7 @@
1578 1578  [[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work]]
1579 1579  
1580 1580  
1581 -1.
1528 +1.
1582 1582  11. Have trouble to upload image.
1583 1583  
1584 1584  See this link for trouble shooting:
... ... @@ -1586,7 +1586,7 @@
1586 1586  [[http:~~/~~/wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting>>url:http://wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting]]
1587 1587  
1588 1588  
1589 -1.
1536 +1.
1590 1590  11. Why I can’t join TTN in US915 /AU915 bands?
1591 1591  
1592 1592  It might be about the channels mapping. Please see this link for detail:
1653358238933-385.png
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