Last modified by Saxer Lin on 2025/04/15 17:24
<
From version < 66.21 >
edited by Xiaoling
on 2022/05/24 13:55
To version < 56.1 >
edited by Xiaoling
on 2022/05/24 10:10
>
Change comment: Uploaded new attachment "1653358238933-385.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -45,114 +45,44 @@
45 45  
46 46  == 1.2  Specifications ==
47 47  
48 -(((
49 49  **Hardware System:**
50 -)))
51 51  
52 -* (((
53 -STM32L072CZT6 MCU
54 -)))
55 -* (((
56 -SX1276/78 Wireless Chip 
57 -)))
58 -* (((
59 -(((
60 -Power Consumption:
61 -)))
50 +* STM32L072CZT6 MCU
51 +* SX1276/78 Wireless Chip 
52 +* Power Consumption:
53 +** Idle: 4mA@12v
54 +** 20dB Transmit: 34mA@12v
62 62  
63 -* (((
64 -Idle: 4mA@12v
65 -)))
66 -* (((
67 -20dB Transmit: 34mA@12v
68 -)))
69 -)))
70 -
71 -(((
72 72  **Interface for Model: LT22222-L:**
73 -)))
74 74  
75 -* (((
76 -2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
77 -)))
78 -* (((
79 -2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
80 -)))
81 -* (((
82 -2 x Relay Output (5A@250VAC / 30VDC)
83 -)))
84 -* (((
85 -2 x 0~~20mA Analog Input (res:0.01mA)
86 -)))
87 -* (((
88 -2 x 0~~30V Analog Input (res:0.01v)
89 -)))
90 -* (((
91 -Power Input 7~~ 24V DC. 
92 -)))
58 +* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
59 +* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
60 +* 2 x Relay Output (5A@250VAC / 30VDC)
61 +* 2 x 0~~20mA Analog Input (res:0.01mA)
62 +* 2 x 0~~30V Analog Input (res:0.01v)
63 +* Power Input 7~~ 24V DC. 
93 93  
94 -(((
95 95  **LoRa Spec:**
96 -)))
97 97  
98 -* (((
99 -(((
100 -Frequency Range:
101 -)))
67 +* Frequency Range:
68 +** Band 1 (HF): 862 ~~ 1020 Mhz
69 +** Band 2 (LF): 410 ~~ 528 Mhz
70 +* 168 dB maximum link budget.
71 +* +20 dBm - 100 mW constant RF output vs.
72 +* +14 dBm high efficiency PA.
73 +* Programmable bit rate up to 300 kbps.
74 +* High sensitivity: down to -148 dBm.
75 +* Bullet-proof front end: IIP3 = -12.5 dBm.
76 +* Excellent blocking immunity.
77 +* Low RX current of 10.3 mA, 200 nA register retention.
78 +* Fully integrated synthesizer with a resolution of 61 Hz.
79 +* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
80 +* Built-in bit synchronizer for clock recovery.
81 +* Preamble detection.
82 +* 127 dB Dynamic Range RSSI.
83 +* Automatic RF Sense and CAD with ultra-fast AFC.
84 +* Packet engine up to 256 bytes with CRC.
102 102  
103 -* (((
104 -Band 1 (HF): 862 ~~ 1020 Mhz
105 -)))
106 -* (((
107 -Band 2 (LF): 410 ~~ 528 Mhz
108 -)))
109 -)))
110 -* (((
111 -168 dB maximum link budget.
112 -)))
113 -* (((
114 -+20 dBm - 100 mW constant RF output vs.
115 -)))
116 -* (((
117 -+14 dBm high efficiency PA.
118 -)))
119 -* (((
120 -Programmable bit rate up to 300 kbps.
121 -)))
122 -* (((
123 -High sensitivity: down to -148 dBm.
124 -)))
125 -* (((
126 -Bullet-proof front end: IIP3 = -12.5 dBm.
127 -)))
128 -* (((
129 -Excellent blocking immunity.
130 -)))
131 -* (((
132 -Low RX current of 10.3 mA, 200 nA register retention.
133 -)))
134 -* (((
135 -Fully integrated synthesizer with a resolution of 61 Hz.
136 -)))
137 -* (((
138 -FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
139 -)))
140 -* (((
141 -Built-in bit synchronizer for clock recovery.
142 -)))
143 -* (((
144 -Preamble detection.
145 -)))
146 -* (((
147 -127 dB Dynamic Range RSSI.
148 -)))
149 -* (((
150 -Automatic RF Sense and CAD with ultra-fast AFC.
151 -)))
152 -* (((
153 -Packet engine up to 256 bytes with CRC.
154 -)))
155 -
156 156  == 1.3 Features ==
157 157  
158 158  * LoRaWAN Class A & Class C protocol
... ... @@ -199,21 +199,13 @@
199 199  
200 200  == 3.1 How it works? ==
201 201  
202 -(((
203 203  The LT is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the LT. It will auto join the network via OTAA. For LT-22222-L, the LED will show the Join status: After power on **TX LED** will fast blink 5 times, LT-22222-L will enter working mode and start to JOIN LoRaWAN network. **TX LED** will be on for 5 seconds after joined in network. When there is message from server, the **RX LED** will be on for 1 second. 
204 -)))
205 205  
206 -(((
207 -In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H4.UseATCommand]] to set the keys in the devices.
208 -)))
134 +In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>path:#AT_Command]] to set the keys in the devices.
209 209  
210 -(((
211 211  3.2 Example to join LoRaWAN network
212 -)))
213 213  
214 -(((
215 215  This chapter shows an example for how to join the TTN LoRaWAN Network. Below is the network structure, we use our LG308 as LoRaWAN gateway here. 
216 -)))
217 217  
218 218  [[image:image-20220523172350-1.png||height="266" width="864"]]
219 219  
... ... @@ -405,7 +405,7 @@
405 405  **ATZ**
406 406  )))
407 407  
408 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.2AT2BMOD3D22C28DoubleDICounting29]].
330 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
409 409  
410 410  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
411 411  
... ... @@ -440,7 +440,7 @@
440 440  )))
441 441  
442 442  
443 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.2AT2BMOD3D22C28DoubleDICounting29]].
365 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
444 444  
445 445  **Plus below command for AVI1 Counting:**
446 446  
... ... @@ -492,7 +492,7 @@
492 492  **ATZ**
493 493  )))
494 494  
495 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.2AT2BMOD3D22C28DoubleDICounting29]].
417 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
496 496  
497 497  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
498 498  
... ... @@ -541,7 +541,7 @@
541 541  
542 542  **Downlink Command to set Trigger Condition**
543 543  
544 -Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
466 +Type Code: 0xAA. Downlink command same as AT Command [[AT+AVLIM, AT+ACLIM>>path:#AT_Trigger]]
545 545  
546 546  Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
547 547  
... ... @@ -561,7 +561,7 @@
561 561  
562 562  Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
563 563  
564 -**Example2**: AA 02 01 00
486 +Example2: AA 02 01 00
565 565  
566 566  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
567 567  
... ... @@ -1121,7 +1121,7 @@
1121 1121  
1122 1122  [[image:image-20220524094641-12.png||height="402" width="718"]]
1123 1123  
1124 -**Step 3**: Create an account or log in Mydevices.
1046 +**Step **3: Create an account or log in Mydevices.
1125 1125  
1126 1126  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1127 1127  
... ... @@ -1131,6 +1131,7 @@
1131 1131  
1132 1132  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1133 1133  
1056 +
1134 1134  [[image:image-20220524094909-1.png||height="335" width="729"]]
1135 1135  
1136 1136  [[image:image-20220524094909-2.png||height="337" width="729"]]
... ... @@ -1141,6 +1141,10 @@
1141 1141  
1142 1142  [[image:image-20220524094909-5.png||height="341" width="734"]]
1143 1143  
1067 +
1068 +
1069 +
1070 +
1144 1144  == 3.6 Interface Detail ==
1145 1145  
1146 1146  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1156,10 +1156,8 @@
1156 1156  )))
1157 1157  
1158 1158  (((
1159 -(((
1160 1160  Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high
1161 1161  )))
1162 -)))
1163 1163  
1164 1164  [[image:1653357170703-587.png]]
1165 1165  
... ... @@ -1191,9 +1191,9 @@
1191 1191  
1192 1192  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1193 1193  
1194 -[[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.**
1195 1195  
1196 -If **DI1+ = 24v**, the [[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.
1197 1197  
1198 1198  
1199 1199  **Example3**: Connect to a 220v high active sensor.
... ... @@ -1205,9 +1205,9 @@
1205 1205  
1206 1206  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1207 1207  
1208 - [[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.**
1209 1209  
1210 -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.
1211 1211  
1212 1212  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1213 1213  
... ... @@ -1248,10 +1248,12 @@
1248 1248  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:
1249 1249  )))
1250 1250  
1176 +
1251 1251  [[image:image-20220524100215-9.png]]
1252 1252  
1253 1253  [[image:image-20220524100215-10.png||height="382" width="723"]]
1254 1254  
1181 +
1255 1255  == 3.7 LEDs Indicators ==
1256 1256  
1257 1257  [[image:image-20220524100748-11.png]]
... ... @@ -1262,555 +1262,360 @@
1262 1262  
1263 1263  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.
1264 1264  
1265 -[[image:1653358238933-385.png]]
1192 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1266 1266  
1267 -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:
1268 1268  
1269 -[[image:1653358355238-883.png]]
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:
1270 1270  
1197 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1198 +
1199 +
1271 1271  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/]]
1272 1272  
1273 -(((
1274 1274  AT+<CMD>?        : Help on <CMD>
1275 -)))
1276 1276  
1277 -(((
1278 1278  AT+<CMD>         : Run <CMD>
1279 -)))
1280 1280  
1281 -(((
1282 1282  AT+<CMD>=<value> : Set the value
1283 -)))
1284 1284  
1285 -(((
1286 1286  AT+<CMD>=?       : Get the value
1287 -)))
1288 1288  
1289 -(((
1290 1290  ATZ: Trig a reset of the MCU
1291 -)))
1292 1292  
1293 -(((
1294 1294  AT+FDR: Reset Parameters to Factory Default, Keys Reserve 
1295 -)))
1296 1296  
1297 -(((
1298 1298  AT+DEUI: Get or Set the Device EUI
1299 -)))
1300 1300  
1301 -(((
1302 1302  AT+DADDR: Get or Set the Device Address
1303 -)))
1304 1304  
1305 -(((
1306 1306  AT+APPKEY: Get or Set the Application Key
1307 -)))
1308 1308  
1309 -(((
1310 1310  AT+NWKSKEY: Get or Set the Network Session Key
1311 -)))
1312 1312  
1313 -(((
1314 1314  AT+APPSKEY: Get or Set the Application Session Key
1315 -)))
1316 1316  
1317 -(((
1318 1318  AT+APPEUI: Get or Set the Application EUI
1319 -)))
1320 1320  
1321 -(((
1322 1322  AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1323 -)))
1324 1324  
1325 -(((
1326 1326  AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1327 -)))
1328 1328  
1329 -(((
1330 1330  AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1331 -)))
1332 1332  
1333 -(((
1334 1334  AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1335 -)))
1336 1336  
1337 -(((
1338 1338  AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1339 -)))
1340 1340  
1341 -(((
1342 1342  AT+RX2FQ: Get or Set the Rx2 window frequency
1343 -)))
1344 1344  
1345 -(((
1346 1346  AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1347 -)))
1348 1348  
1349 -(((
1350 1350  AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1351 -)))
1352 1352  
1353 -(((
1354 1354  AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1355 -)))
1356 1356  
1357 -(((
1358 1358  AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1359 -)))
1360 1360  
1361 -(((
1362 1362  AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1363 -)))
1364 1364  
1365 -(((
1366 1366  AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1367 -)))
1368 1368  
1369 -(((
1370 1370  AT+NWKID: Get or Set the Network ID
1371 -)))
1372 1372  
1373 -(((
1374 1374  AT+FCU: Get or Set the Frame Counter Uplink
1375 -)))
1376 1376  
1377 -(((
1378 1378  AT+FCD: Get or Set the Frame Counter Downlink
1379 -)))
1380 1380  
1381 -(((
1382 1382  AT+CLASS: Get or Set the Device Class
1383 -)))
1384 1384  
1385 -(((
1386 1386  AT+JOIN: Join network
1387 -)))
1388 1388  
1389 -(((
1390 1390  AT+NJS: Get OTAA Join Status
1391 -)))
1392 1392  
1393 -(((
1394 1394  AT+SENDB: Send hexadecimal data along with the application port
1395 -)))
1396 1396  
1397 -(((
1398 1398  AT+SEND: Send text data along with the application port
1399 -)))
1400 1400  
1401 -(((
1402 1402  AT+RECVB: Print last received data in binary format (with hexadecimal values)
1403 -)))
1404 1404  
1405 -(((
1406 1406  AT+RECV: Print last received data in raw format
1407 -)))
1408 1408  
1409 -(((
1410 1410  AT+VER: Get current image version and Frequency Band
1411 -)))
1412 1412  
1413 -(((
1414 1414  AT+CFM: Get or Set the confirmation mode (0-1)
1415 -)))
1416 1416  
1417 -(((
1418 1418  AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1419 -)))
1420 1420  
1421 -(((
1422 1422  AT+SNR: Get the SNR of the last received packet
1423 -)))
1424 1424  
1425 -(((
1426 1426  AT+RSSI: Get the RSSI of the last received packet
1427 -)))
1428 1428  
1429 -(((
1430 1430  AT+TDC: Get or set the application data transmission interval in ms
1431 -)))
1432 1432  
1433 -(((
1434 1434  AT+PORT: Get or set the application port
1435 -)))
1436 1436  
1437 -(((
1438 1438  AT+DISAT: Disable AT commands
1439 -)))
1440 1440  
1441 -(((
1442 1442  AT+PWORD: Set password, max 9 digits
1443 -)))
1444 1444  
1445 -(((
1446 1446  AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1447 -)))
1448 1448  
1449 -(((
1450 1450  AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1451 -)))
1452 1452  
1453 -(((
1454 1454  AT+CFG: Print all settings
1455 -)))
1456 1456  
1457 -== 4.2 Common AT Command Sequence ==
1458 1458  
1459 -=== 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1460 1460  
1461 -(((
1296 +1.
1297 +11. Common AT Command Sequence
1298 +111. Multi-channel ABP mode (Use with SX1301/LG308)
1299 +
1462 1462  If device has not joined network yet:
1463 -)))
1464 1464  
1465 -(((
1466 -(% style="background-color:#dcdcdc" %)123456
1467 -)))
1302 +123456
1468 1468  
1469 -(((
1470 -(% style="background-color:#dcdcdc" %)AT+FDR
1471 -)))
1304 +AT+FDR
1472 1472  
1473 -(((
1474 -(% style="background-color:#dcdcdc" %)123456
1475 -)))
1306 +123456
1476 1476  
1477 -(((
1478 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1479 -)))
1308 +AT+NJM=0
1480 1480  
1481 -(((
1482 -(% style="background-color:#dcdcdc" %)ATZ
1483 -)))
1310 +ATZ
1484 1484  
1485 1485  
1486 -(((
1487 1487  If device already joined network:
1488 -)))
1489 1489  
1490 -(((
1491 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1492 -)))
1315 +AT+NJM=0
1493 1493  
1494 -(((
1495 -(% style="background-color:#dcdcdc" %)ATZ
1496 -)))
1317 +ATZ
1497 1497  
1498 -=== 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1319 +1.
1320 +11.
1321 +111. Single-channel ABP mode (Use with LG01/LG02)
1499 1499  
1500 -(((
1501 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1502 -)))
1323 +123456   Enter Password to have AT access.
1503 1503  
1504 -(((
1505 -(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1506 -)))
1325 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1507 1507  
1508 -(((
1509 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1510 -)))
1327 +123456   Enter Password to have AT access.
1511 1511  
1512 -(((
1513 -(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1514 -)))
1329 +AT+CLASS=C Set to work in CLASS C
1515 1515  
1516 -(((
1517 -(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1518 -)))
1331 +AT+NJM=0 Set to ABP mode
1519 1519  
1520 -(((
1521 -(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off
1522 -)))
1333 +AT+ADR=0 Set the Adaptive Data Rate Off
1523 1523  
1524 -(((
1525 -(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1526 -)))
1335 +AT+DR=5  Set Data Rate
1527 1527  
1528 -(((
1529 -(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1530 -)))
1337 +AT+TDC=60000  Set transmit interval to 60 seconds
1531 1531  
1532 -(((
1533 -(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
1534 -)))
1339 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1535 1535  
1536 -(((
1537 -(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1538 -)))
1341 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1539 1539  
1540 -(((
1541 -(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1542 -)))
1343 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1543 1543  
1544 -(((
1545 -(% 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.
1546 -)))
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.
1547 1547  
1548 -(((
1549 -(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1550 -)))
1347 +ATZ          Reset MCU
1551 1551  
1552 -(((
1553 -(% style="color:red" %)**Note:**
1554 -)))
1349 +**Note:**
1555 1555  
1556 -(((
1557 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1558 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1559 -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.
1560 -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
1561 -)))
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
1562 1562  
1563 -(((
1564 -[[image:1653359097980-169.png||height="188" width="729"]]
1565 -)))
1356 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1566 1566  
1567 -(((
1568 -
1569 -)))
1570 1570  
1571 -=== 4.2.3 Change to Class A ===
1359 +1.
1360 +11.
1361 +111. Change to Class A
1572 1572  
1573 1573  If sensor JOINED
1574 -(% style="background-color:#dcdcdc" %)AT+CLASS=A
1364 +
1365 +AT+CLASS=A
1366 +
1575 1575  ATZ
1576 1576  
1577 -= 5. FAQ =
1578 1578  
1579 -== 5.1 How to upgrade the image? ==
1580 1580  
1371 +
1372 +
1373 +1. FAQ
1374 +
1375 +1.
1376 +11. How to upgrade the image?
1377 +
1581 1581  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1582 1582  
1583 1583  * Support new features
1584 1584  * For bug fix
1585 1585  * Change LoRaWAN bands.
1383 +
1586 1586  Below shows the hardware connection for how to upload an image to the LT:
1587 -* [[image:1653359603330-121.png]]
1588 1588  
1386 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1387 +
1388 +
1589 1589  **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]].
1390 +
1590 1590  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1392 +
1591 1591  **Step3: **Open flashloader; choose the correct COM port to update.
1592 -**For LT-22222-L**:
1593 -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.
1594 1594  
1595 - [[image:image-20220524103407-12.png]]
1395 +**For LT-33222-L**:
1596 1596  
1597 -[[image:image-20220524103429-13.png]]
1397 +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.
1598 1598  
1599 -[[image:image-20220524104033-15.png]]
1399 +**For LT-22222-L**:
1600 1600  
1601 -(% 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:
1401 +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.
1602 1602  
1603 -[[image:1653360054704-518.png||height="186" width="745"]]
1604 1604  
1605 -(((
1606 -(((
1607 -== 5.2 How to change the LoRa Frequency Bands/Region? ==
1608 -)))
1609 -)))
1610 1610  
1611 -(((
1612 -User can follow the introduction for [[how to upgrade image>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H5.1Howtoupgradetheimage3F]]. When download the images, choose the required image file for download.
1405 +|(((
1406 +Board detected
1613 1613  )))
1614 1614  
1615 -(((
1616 -== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1409 +|(((
1410 +
1617 1617  )))
1618 1618  
1619 -(((
1620 -(((
1413 +[[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]]
1414 +
1415 +
1416 +
1417 +[[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]]
1418 +
1419 +
1420 +[[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]]
1421 +
1422 +
1423 +**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1424 +
1425 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1426 +
1427 +
1428 +1.
1429 +11. How to change the LoRa Frequency Bands/Region?
1430 +
1431 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1432 +
1433 +
1434 +1.
1435 +11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1436 +
1621 1621  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
1622 -)))
1623 -)))
1624 1624  
1625 -(((
1626 -(((
1627 1627  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1628 -)))
1629 -)))
1630 1630  
1631 -(((
1632 -(% style="color:#4f81bd" %)**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.
1633 -)))
1634 1634  
1635 -(((
1636 -[[image:1653360231087-571.png||height="401" width="727"]]
1637 -)))
1442 +**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.
1638 1638  
1639 -(% style="color:red" %)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.
1444 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]
1640 1640  
1641 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1446 +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.
1642 1642  
1643 -(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1644 -(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1645 -(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1646 -(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1647 -(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1648 -(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1649 -(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1650 -(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1651 -(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1652 -(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1653 1653  
1449 +**Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1450 +
1451 +123456   Enter Password to have AT access.
1452 +
1453 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1454 +
1455 +123456   Enter Password to have AT access.
1456 +
1457 +AT+NJM=0 Set to ABP mode
1458 +
1459 +AT+ADR=0 Set the Adaptive Data Rate Off
1460 +
1461 +AT+DR=5  Set Data Rate (Set AT+DR=3 for 915 band)
1462 +
1463 +AT+TDC=60000  Set transmit interval to 60 seconds
1464 +
1465 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1466 +
1467 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1
1468 +
1469 +ATZ                Reset MCU
1470 +
1654 1654  As shown in below:
1655 1655  
1656 -[[image:1653360498588-932.png||height="485" width="726"]]
1473 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]
1657 1657  
1658 -== 5.4 Can I see counting event in Serial? ==
1659 1659  
1660 -(((
1476 +
1477 +1.
1478 +11. Can I see counting event in Serial?
1479 +
1661 1661  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.
1662 -)))
1663 1663  
1664 -(((
1665 -= 6. Trouble Shooting =
1666 -)))
1667 1667  
1668 -(((
1669 -(((
1670 -== 6.1 Downlink doesn’t work, how to solve it? ==
1671 -)))
1672 -)))
1673 1673  
1674 -(((
1675 -Please see this link for how to debug:
1676 1676  
1677 -[[http:~~/~~/8.211.40.43:8080/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/>>http://8.211.40.43:8080/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/]]
1678 -)))
1485 +1. Trouble Shooting     
1486 +11. Downlink doesn’t work, how to solve it?
1679 1679  
1680 -(((
1488 +Please see this link for how to debug:
1489 +
1681 1681  [[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]]
1682 -)))
1683 1683  
1684 -(((
1685 -== 6.2 Have trouble to upload image. ==
1686 -)))
1687 1687  
1688 -(((
1493 +1.
1494 +11. Have trouble to upload image.
1495 +
1689 1689  See this link for trouble shooting:
1690 -)))
1691 1691  
1692 -(((
1693 1693  [[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]]
1694 -)))
1695 1695  
1696 -(((
1697 -== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1698 -)))
1699 1699  
1700 -(((
1501 +1.
1502 +11. Why I can’t join TTN in US915 /AU915 bands?
1503 +
1701 1701  It might be about the channels mapping. Please see this link for detail:
1702 -)))
1703 1703  
1704 -(((
1705 1705  [[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]]
1706 -)))
1707 1707  
1708 -(((
1709 -= 7. Order Info =
1710 -)))
1711 1711  
1712 -(((
1713 -(((
1714 -(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1715 -)))
1716 -)))
1717 1717  
1718 -(((
1719 -(((
1720 -(% style="color:#4f81bd" %)**XXX:**
1721 -)))
1722 -)))
1723 1723  
1724 -* (((
1725 -(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1726 -)))
1727 -* (((
1728 -(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1729 -)))
1730 -* (((
1731 -(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1732 -)))
1733 -* (((
1734 -(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1735 -)))
1736 -* (((
1737 -(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1738 -)))
1739 -* (((
1740 -(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1741 -)))
1742 -* (((
1743 -(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1744 -)))
1745 -* (((
1746 -(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1747 -)))
1511 +1. Order Info
1748 1748  
1749 -(((
1750 -* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1513 +**For LT-33222-L-XXX or LT-22222-L-XXX:**
1751 1751  
1752 -= 8. Packing Info =
1753 -)))
1515 +**XXX:**
1754 1754  
1755 -(((
1756 -(((
1517 +* **EU433**: LT with frequency bands EU433
1518 +* **EU868**: LT with frequency bands EU868
1519 +* **KR920**: LT with frequency bands KR920
1520 +* **CN470**: LT with frequency bands CN470
1521 +* **AS923**: LT with frequency bands AS923
1522 +* **AU915**: LT with frequency bands AU915
1523 +* **US915**: LT with frequency bands US915
1524 +* **IN865**: LT with frequency bands IN865
1525 +* **CN779**: LT with frequency bands CN779
1526 +
1527 +1. Packing Info
1528 +
1757 1757  **Package Includes**:
1758 -)))
1759 -)))
1760 1760  
1761 -(((
1762 -(((
1763 -* LT-22222-L I/O Controller x 1
1531 +* LT I/O Controller x 1
1764 1764  * Stick Antenna for LoRa RF part x 1
1765 1765  * Bracket for controller x1
1766 1766  * Program cable x 1
1767 -)))
1768 -)))
1769 1769  
1770 -(((
1771 -(((
1772 1772  **Dimension and weight**:
1773 -)))
1774 -)))
1775 1775  
1776 -(((
1777 -(((
1778 1778  * Device Size: 13.5 x 7 x 3 cm
1779 1779  * Device Weight: 105g
1780 1780  * Package Size / pcs : 14.5 x 8 x 5 cm
1781 1781  * Weight / pcs : 170g
1782 -)))
1783 -)))
1784 1784  
1785 -(((
1786 -= 9. Support =
1787 -)))
1543 +1. Support
1788 1788  
1789 -* (((
1790 -(((
1791 -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.
1792 -)))
1793 -)))
1794 -* (((
1795 -(((
1796 -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
1797 -)))
1798 -)))
1545 +* 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.
1546 +* 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
1799 1799  
1800 -(((
1801 -(((
1802 - [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1803 -)))
1804 -
1805 -(((
1806 -= 10. Reference​​​​​ =
1807 -
1808 -* Product Page:
1809 -
1810 -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]]
1811 -
1812 -* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1813 -* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1814 -* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
1815 -)))
1816 -)))
1548 +[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
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