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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 56.1
edited by Xiaoling
on 2022/05/24 10:10
Change comment: Uploaded new attachment "1653358238933-385.png", version {1}
To version 57.4
edited by Xiaoling
on 2022/05/24 10:24
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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: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:/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.**
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: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:/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.
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: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:/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.**
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  
... ... @@ -1173,12 +1173,10 @@
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 1174  )))
1175 1175  
1176 -
1177 1177  [[image:image-20220524100215-9.png]]
1178 1178  
1179 1179  [[image:image-20220524100215-10.png||height="382" width="723"]]
1180 1180  
1181 -
1182 1182  == 3.7 LEDs Indicators ==
1183 1183  
1184 1184  [[image:image-20220524100748-11.png]]
... ... @@ -1189,169 +1189,255 @@
1189 1189  
1190 1190  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.
1191 1191  
1192 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1190 +[[image:1653358238933-385.png]]
1193 1193  
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:
1194 1194  
1195 -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:
1194 +[[image:1653358355238-883.png]]
1196 1196  
1197 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1198 -
1199 -
1200 1200  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/]]
1201 1201  
1198 +(((
1202 1202  AT+<CMD>?        : Help on <CMD>
1200 +)))
1203 1203  
1202 +(((
1204 1204  AT+<CMD>         : Run <CMD>
1204 +)))
1205 1205  
1206 +(((
1206 1206  AT+<CMD>=<value> : Set the value
1208 +)))
1207 1207  
1210 +(((
1208 1208  AT+<CMD>=?       : Get the value
1212 +)))
1209 1209  
1214 +(((
1210 1210  ATZ: Trig a reset of the MCU
1216 +)))
1211 1211  
1218 +(((
1212 1212  AT+FDR: Reset Parameters to Factory Default, Keys Reserve 
1220 +)))
1213 1213  
1222 +(((
1214 1214  AT+DEUI: Get or Set the Device EUI
1224 +)))
1215 1215  
1226 +(((
1216 1216  AT+DADDR: Get or Set the Device Address
1228 +)))
1217 1217  
1230 +(((
1218 1218  AT+APPKEY: Get or Set the Application Key
1232 +)))
1219 1219  
1234 +(((
1220 1220  AT+NWKSKEY: Get or Set the Network Session Key
1236 +)))
1221 1221  
1238 +(((
1222 1222  AT+APPSKEY: Get or Set the Application Session Key
1240 +)))
1223 1223  
1242 +(((
1224 1224  AT+APPEUI: Get or Set the Application EUI
1244 +)))
1225 1225  
1246 +(((
1226 1226  AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1248 +)))
1227 1227  
1250 +(((
1228 1228  AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1252 +)))
1229 1229  
1254 +(((
1230 1230  AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1256 +)))
1231 1231  
1258 +(((
1232 1232  AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1260 +)))
1233 1233  
1262 +(((
1234 1234  AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1264 +)))
1235 1235  
1266 +(((
1236 1236  AT+RX2FQ: Get or Set the Rx2 window frequency
1268 +)))
1237 1237  
1270 +(((
1238 1238  AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1272 +)))
1239 1239  
1274 +(((
1240 1240  AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1276 +)))
1241 1241  
1278 +(((
1242 1242  AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1280 +)))
1243 1243  
1282 +(((
1244 1244  AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1284 +)))
1245 1245  
1286 +(((
1246 1246  AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1288 +)))
1247 1247  
1290 +(((
1248 1248  AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1292 +)))
1249 1249  
1294 +(((
1250 1250  AT+NWKID: Get or Set the Network ID
1296 +)))
1251 1251  
1298 +(((
1252 1252  AT+FCU: Get or Set the Frame Counter Uplink
1300 +)))
1253 1253  
1302 +(((
1254 1254  AT+FCD: Get or Set the Frame Counter Downlink
1304 +)))
1255 1255  
1306 +(((
1256 1256  AT+CLASS: Get or Set the Device Class
1308 +)))
1257 1257  
1310 +(((
1258 1258  AT+JOIN: Join network
1312 +)))
1259 1259  
1314 +(((
1260 1260  AT+NJS: Get OTAA Join Status
1316 +)))
1261 1261  
1318 +(((
1262 1262  AT+SENDB: Send hexadecimal data along with the application port
1320 +)))
1263 1263  
1322 +(((
1264 1264  AT+SEND: Send text data along with the application port
1324 +)))
1265 1265  
1326 +(((
1266 1266  AT+RECVB: Print last received data in binary format (with hexadecimal values)
1328 +)))
1267 1267  
1330 +(((
1268 1268  AT+RECV: Print last received data in raw format
1332 +)))
1269 1269  
1334 +(((
1270 1270  AT+VER: Get current image version and Frequency Band
1336 +)))
1271 1271  
1338 +(((
1272 1272  AT+CFM: Get or Set the confirmation mode (0-1)
1340 +)))
1273 1273  
1342 +(((
1274 1274  AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1344 +)))
1275 1275  
1346 +(((
1276 1276  AT+SNR: Get the SNR of the last received packet
1348 +)))
1277 1277  
1350 +(((
1278 1278  AT+RSSI: Get the RSSI of the last received packet
1352 +)))
1279 1279  
1354 +(((
1280 1280  AT+TDC: Get or set the application data transmission interval in ms
1356 +)))
1281 1281  
1358 +(((
1282 1282  AT+PORT: Get or set the application port
1360 +)))
1283 1283  
1362 +(((
1284 1284  AT+DISAT: Disable AT commands
1364 +)))
1285 1285  
1366 +(((
1286 1286  AT+PWORD: Set password, max 9 digits
1368 +)))
1287 1287  
1370 +(((
1288 1288  AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1372 +)))
1289 1289  
1374 +(((
1290 1290  AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1376 +)))
1291 1291  
1378 +(((
1292 1292  AT+CFG: Print all settings
1380 +)))
1293 1293  
1382 +== 4.2 Common AT Command Sequence ==
1294 1294  
1384 +=== 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1295 1295  
1296 -1.
1297 -11. Common AT Command Sequence
1298 -111. Multi-channel ABP mode (Use with SX1301/LG308)
1299 -
1300 1300  If device has not joined network yet:
1301 1301  
1302 -123456
1388 +(% style="background-color:#dcdcdc" %)123456
1303 1303  
1304 -AT+FDR
1390 +(% style="background-color:#dcdcdc" %)AT+FDR
1305 1305  
1306 -123456
1392 +(% style="background-color:#dcdcdc" %)123456
1307 1307  
1308 -AT+NJM=0
1394 +(% style="background-color:#dcdcdc" %)AT+NJM=0
1309 1309  
1310 -ATZ
1396 +(% style="background-color:#dcdcdc" %)ATZ
1311 1311  
1312 1312  
1313 1313  If device already joined network:
1314 1314  
1315 -AT+NJM=0
1401 +(% style="background-color:#dcdcdc" %)AT+NJM=0
1316 1316  
1317 -ATZ
1403 +(% style="background-color:#dcdcdc" %)ATZ
1318 1318  
1319 -1.
1320 -11.
1321 -111. Single-channel ABP mode (Use with LG01/LG02)
1405 +=== 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1322 1322  
1323 -123456   Enter Password to have AT access.
1407 +(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1324 1324  
1325 -AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1409 +(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1326 1326  
1327 -123456   Enter Password to have AT access.
1411 +(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1328 1328  
1329 -AT+CLASS=C Set to work in CLASS C
1413 +(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1330 1330  
1331 -AT+NJM=0 Set to ABP mode
1415 +(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1332 1332  
1333 -AT+ADR=0 Set the Adaptive Data Rate Off
1417 +(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off
1334 1334  
1335 -AT+DR=5  Set Data Rate
1419 +(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1336 1336  
1337 -AT+TDC=60000  Set transmit interval to 60 seconds
1421 +(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1338 1338  
1339 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1423 +(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
1340 1340  
1341 -AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1425 +(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1342 1342  
1343 -AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1427 +(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1344 1344  
1345 -AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1429 +(% 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.
1346 1346  
1347 -ATZ          Reset MCU
1431 +(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1348 1348  
1349 -**Note:**
1433 +(% style="color:red" %)**Note:**
1350 1350  
1351 -1. Make sure the device is set to ABP mode in the IoT Server.
1352 -1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1353 -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.
1354 -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
1435 +(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1436 +2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1437 +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.
1438 +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
1355 1355  
1356 1356  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1357 1357  
1653358355238-883.png
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