Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 65.1 >
edited by Xiaoling
on 2022/05/24 10:43
To version < 55.1 >
edited by Xiaoling
on 2022/05/24 10:07
>
Change comment: Uploaded new attachment "image-20220524100748-11.png", version {1}

Summary

Details

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Content
... ... @@ -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:/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:/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:/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:/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:/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:/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:/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:/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:/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:/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:/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:/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  
... ... @@ -1169,650 +1169,415 @@
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 -== 4.2 Common AT Command Sequence ==
1383 1383  
1384 -=== 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1385 1385  
1386 -(((
1331 +1.
1332 +11. Common AT Command Sequence
1333 +111. Multi-channel ABP mode (Use with SX1301/LG308)
1334 +
1387 1387  If device has not joined network yet:
1388 -)))
1389 1389  
1390 -(((
1391 -(% style="background-color:#dcdcdc" %)123456
1392 -)))
1337 +123456
1393 1393  
1394 -(((
1395 -(% style="background-color:#dcdcdc" %)AT+FDR
1396 -)))
1339 +AT+FDR
1397 1397  
1398 -(((
1399 -(% style="background-color:#dcdcdc" %)123456
1400 -)))
1341 +123456
1401 1401  
1402 -(((
1403 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1404 -)))
1343 +AT+NJM=0
1405 1405  
1406 -(((
1407 -(% style="background-color:#dcdcdc" %)ATZ
1408 -)))
1345 +ATZ
1409 1409  
1410 1410  
1411 -(((
1412 1412  If device already joined network:
1413 -)))
1414 1414  
1415 -(((
1416 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1417 -)))
1350 +AT+NJM=0
1418 1418  
1419 -(((
1420 -(% style="background-color:#dcdcdc" %)ATZ
1421 -)))
1352 +ATZ
1422 1422  
1423 -=== 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1354 +1.
1355 +11.
1356 +111. Single-channel ABP mode (Use with LG01/LG02)
1424 1424  
1425 -(((
1426 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1427 -)))
1358 +123456   Enter Password to have AT access.
1428 1428  
1429 -(((
1430 -(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1431 -)))
1360 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1432 1432  
1433 -(((
1434 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1435 -)))
1362 +123456   Enter Password to have AT access.
1436 1436  
1437 -(((
1438 -(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1439 -)))
1364 +AT+CLASS=C Set to work in CLASS C
1440 1440  
1441 -(((
1442 -(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1443 -)))
1366 +AT+NJM=0 Set to ABP mode
1444 1444  
1445 -(((
1446 -(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off
1447 -)))
1368 +AT+ADR=0 Set the Adaptive Data Rate Off
1448 1448  
1449 -(((
1450 -(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1451 -)))
1370 +AT+DR=5  Set Data Rate
1452 1452  
1453 -(((
1454 -(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1455 -)))
1372 +AT+TDC=60000  Set transmit interval to 60 seconds
1456 1456  
1457 -(((
1458 -(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
1459 -)))
1374 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1460 1460  
1461 -(((
1462 -(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1463 -)))
1376 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1464 1464  
1465 -(((
1466 -(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1467 -)))
1378 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1468 1468  
1469 -(((
1470 -(% 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.
1471 -)))
1380 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1472 1472  
1473 -(((
1474 -(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1475 -)))
1382 +ATZ          Reset MCU
1476 1476  
1477 -(((
1478 -(% style="color:red" %)**Note:**
1479 -)))
1384 +**Note:**
1480 1480  
1481 -(((
1482 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1483 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1484 -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.
1485 -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
1486 -)))
1386 +1. Make sure the device is set to ABP mode in the IoT Server.
1387 +1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1388 +1. 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.
1389 +1. 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
1487 1487  
1488 -(((
1489 -[[image:1653359097980-169.png||height="188" width="729"]]
1490 -)))
1391 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1491 1491  
1492 -(((
1493 -
1494 -)))
1495 1495  
1496 -=== 4.2.3 Change to Class A ===
1394 +1.
1395 +11.
1396 +111. Change to Class A
1497 1497  
1498 1498  If sensor JOINED
1499 -(% style="background-color:#dcdcdc" %)AT+CLASS=A
1399 +
1400 +AT+CLASS=A
1401 +
1500 1500  ATZ
1501 1501  
1502 -= 5. FAQ =
1503 1503  
1504 -== 5.1 How to upgrade the image? ==
1505 1505  
1406 +
1407 +
1408 +1. FAQ
1409 +
1410 +1.
1411 +11. How to upgrade the image?
1412 +
1506 1506  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1507 1507  
1508 1508  * Support new features
1509 1509  * For bug fix
1510 1510  * Change LoRaWAN bands.
1418 +
1511 1511  Below shows the hardware connection for how to upload an image to the LT:
1512 -* [[image:1653359603330-121.png]]
1513 1513  
1421 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1422 +
1423 +
1514 1514  **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]].
1425 +
1515 1515  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1427 +
1516 1516  **Step3: **Open flashloader; choose the correct COM port to update.
1517 -**For LT-22222-L**:
1518 -Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
1519 1519  
1520 - [[image:image-20220524103407-12.png]]
1430 +**For LT-33222-L**:
1521 1521  
1522 -[[image:image-20220524103429-13.png]]
1432 +Hold down the PRO button and then momentarily press the RST reset button and the **DO2 led** will change from OFF to ON. When **DO2 LED** is on, it means the device is in download mode.
1523 1523  
1524 -[[image:image-20220524104033-15.png]]
1434 +**For LT-22222-L**:
1525 1525  
1526 -(% style="color:red" %)**Notice**(%%): In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1436 +Hold down the PRO button and then momentarily press the RST reset button and the **DO1 led** will change from OFF to ON. When **DO1 LED** is on, it means the device is in download mode.
1527 1527  
1528 -[[image:1653360054704-518.png||height="186" width="745"]]
1529 1529  
1530 -(((
1531 -(((
1532 -== 5.2 How to change the LoRa Frequency Bands/Region? ==
1533 -)))
1534 -)))
1535 1535  
1536 -(((
1537 -User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1440 +|(((
1441 +Board detected
1538 1538  )))
1539 1539  
1540 -(((
1444 +|(((
1541 1541  
1542 1542  )))
1543 1543  
1448 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]]
1449 +
1450 +
1451 +
1452 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]]
1453 +
1454 +
1455 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image037.png]]
1456 +
1457 +
1458 +**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1459 +
1460 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1461 +
1462 +
1544 1544  1.
1545 -11. (((
1546 -How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1547 -)))
1464 +11. How to change the LoRa Frequency Bands/Region?
1548 1548  
1549 -(((
1466 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1467 +
1468 +
1469 +1.
1470 +11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1471 +
1550 1550  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
1551 -)))
1552 1552  
1553 -(((
1554 1554  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1555 -)))
1556 1556  
1557 -(((
1558 -
1559 -)))
1560 1560  
1561 -(((
1562 1562  **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.
1563 -)))
1564 1564  
1565 -(((
1566 1566  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]
1567 -)))
1568 1568  
1569 -(((
1570 1570  Note: user just need to make sure above three keys match, User can change either in TTN or Device to make then match. In TTN, NETSKEY and APPSKEY can be configured by user in setting page, but Device Addr is generated by TTN.
1571 -)))
1572 1572  
1573 -(((
1574 -
1575 -)))
1576 1576  
1577 -(((
1578 1578  **Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1579 -)))
1580 1580  
1581 -(((
1582 1582  123456   Enter Password to have AT access.
1583 -)))
1584 1584  
1585 -(((
1586 1586  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1587 -)))
1588 1588  
1589 -(((
1590 1590  123456   Enter Password to have AT access.
1591 -)))
1592 1592  
1593 -(((
1594 1594  AT+NJM=0 Set to ABP mode
1595 -)))
1596 1596  
1597 -(((
1598 1598  AT+ADR=0 Set the Adaptive Data Rate Off
1599 -)))
1600 1600  
1601 -(((
1602 1602  AT+DR=5  Set Data Rate (Set AT+DR=3 for 915 band)
1603 -)))
1604 1604  
1605 -(((
1606 1606  AT+TDC=60000  Set transmit interval to 60 seconds
1607 -)))
1608 1608  
1609 -(((
1610 1610  AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1611 -)))
1612 1612  
1613 -(((
1614 1614  AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1
1615 -)))
1616 1616  
1617 -(((
1618 1618  ATZ                Reset MCU
1619 -)))
1620 1620  
1621 -(((
1622 1622  As shown in below:
1623 -)))
1624 1624  
1625 -(((
1626 1626  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]
1627 -)))
1628 1628  
1629 -(((
1630 -
1631 -)))
1632 1632  
1633 -(((
1634 -
1635 -)))
1636 1636  
1637 -1. (((
1638 -(((
1639 -
1640 -)))
1512 +1.
1513 +11. Can I see counting event in Serial?
1641 1641  
1642 -1. (((
1643 -Can I see counting event in Serial?
1644 -)))
1645 -)))
1646 -
1647 -(((
1648 1648  User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn’t support AT+DEBUG. User can update to latest firmware first.
1649 -)))
1650 1650  
1651 -(((
1652 -
1653 -)))
1654 1654  
1655 -(((
1656 -
1657 -)))
1658 1658  
1659 -(((
1660 -
1661 -)))
1662 1662  
1663 -1. (((
1664 -(((
1665 -Trouble Shooting    
1666 -)))
1520 +1. Trouble Shooting     
1521 +11. Downlink doesn’t work, how to solve it?
1667 1667  
1668 -1. (((
1669 -Downlink doesn’t work, how to solve it?
1670 -)))
1671 -)))
1672 -
1673 -(((
1674 1674  Please see this link for how to debug:
1675 -)))
1676 1676  
1677 -(((
1678 1678  [[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]]
1679 -)))
1680 1680  
1681 -(((
1682 -
1683 -)))
1684 1684  
1685 1685  1.
1686 -11. (((
1687 -Have trouble to upload image.
1688 -)))
1529 +11. Have trouble to upload image.
1689 1689  
1690 -(((
1691 1691  See this link for trouble shooting:
1692 -)))
1693 1693  
1694 -(((
1695 1695  [[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]]
1696 -)))
1697 1697  
1698 -(((
1699 -
1700 -)))
1701 1701  
1702 1702  1.
1703 -11. (((
1704 -Why I can’t join TTN in US915 /AU915 bands?
1705 -)))
1537 +11. Why I can’t join TTN in US915 /AU915 bands?
1706 1706  
1707 -(((
1708 1708  It might be about the channels mapping. Please see this link for detail:
1709 -)))
1710 1710  
1711 -(((
1712 1712  [[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1713 -)))
1714 1714  
1715 -(((
1716 -
1717 -)))
1718 1718  
1719 -(((
1720 -
1721 -)))
1722 1722  
1723 -(((
1724 -
1725 -)))
1726 1726  
1727 -1. (((
1728 -Order Info
1729 -)))
1546 +1. Order Info
1730 1730  
1731 -(((
1732 1732  **For LT-33222-L-XXX or LT-22222-L-XXX:**
1733 -)))
1734 1734  
1735 -(((
1736 1736  **XXX:**
1737 -)))
1738 1738  
1739 -* (((
1740 -**EU433**: LT with frequency bands EU433
1741 -)))
1742 -* (((
1743 -**EU868**: LT with frequency bands EU868
1744 -)))
1745 -* (((
1746 -**KR920**: LT with frequency bands KR920
1747 -)))
1748 -* (((
1749 -**CN470**: LT with frequency bands CN470
1750 -)))
1751 -* (((
1752 -**AS923**: LT with frequency bands AS923
1753 -)))
1754 -* (((
1755 -**AU915**: LT with frequency bands AU915
1756 -)))
1757 -* (((
1758 -**US915**: LT with frequency bands US915
1759 -)))
1760 -* (((
1761 -**IN865**: LT with frequency bands IN865
1762 -)))
1763 -* (((
1764 -**CN779**: LT with frequency bands CN779
1765 -)))
1552 +* **EU433**: LT with frequency bands EU433
1553 +* **EU868**: LT with frequency bands EU868
1554 +* **KR920**: LT with frequency bands KR920
1555 +* **CN470**: LT with frequency bands CN470
1556 +* **AS923**: LT with frequency bands AS923
1557 +* **AU915**: LT with frequency bands AU915
1558 +* **US915**: LT with frequency bands US915
1559 +* **IN865**: LT with frequency bands IN865
1560 +* **CN779**: LT with frequency bands CN779
1766 1766  
1767 -1. (((
1768 -Packing Info
1769 -)))
1562 +1. Packing Info
1770 1770  
1771 -(((
1772 1772  **Package Includes**:
1773 -)))
1774 1774  
1775 -* (((
1776 -LT I/O Controller x 1
1777 -)))
1778 -* (((
1779 -Stick Antenna for LoRa RF part x 1
1780 -)))
1781 -* (((
1782 -Bracket for controller x1
1783 -)))
1784 -* (((
1785 -Program cable x 1
1786 -)))
1566 +* LT I/O Controller x 1
1567 +* Stick Antenna for LoRa RF part x 1
1568 +* Bracket for controller x1
1569 +* Program cable x 1
1787 1787  
1788 -(((
1789 1789  **Dimension and weight**:
1790 -)))
1791 1791  
1792 -* (((
1793 -Device Size: 13.5 x 7 x 3 cm
1794 -)))
1795 -* (((
1796 -Device Weight: 105g
1797 -)))
1798 -* (((
1799 -Package Size / pcs : 14.5 x 8 x 5 cm
1800 -)))
1801 -* (((
1802 -Weight / pcs : 170g
1803 -)))
1573 +* Device Size: 13.5 x 7 x 3 cm
1574 +* Device Weight: 105g
1575 +* Package Size / pcs : 14.5 x 8 x 5 cm
1576 +* Weight / pcs : 170g
1804 1804  
1805 -1. (((
1806 -Support
1807 -)))
1578 +1. Support
1808 1808  
1809 -* (((
1810 -Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1811 -)))
1812 -* (((
1813 -Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
1814 -)))
1580 +* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1581 +* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
1815 1815  
1816 -(((
1817 1817  [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1818 -)))
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