Changes for page LT-22222-L -- LoRa I/O Controller User Manual
Last modified by Mengting Qiu on 2025/06/04 18:42
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... ... @@ -45,44 +45,114 @@ 45 45 46 46 == 1.2 Specifications == 47 47 48 +((( 48 48 **Hardware System:** 50 +))) 49 49 50 -* STM32L072CZT6 MCU 51 -* SX1276/78 Wireless Chip 52 -* Power Consumption: 53 -** Idle: 4mA@12v 54 -** 20dB Transmit: 34mA@12v 52 +* ((( 53 +STM32L072CZT6 MCU 54 +))) 55 +* ((( 56 +SX1276/78 Wireless Chip 57 +))) 58 +* ((( 59 +((( 60 +Power Consumption: 61 +))) 55 55 63 +* ((( 64 +Idle: 4mA@12v 65 +))) 66 +* ((( 67 +20dB Transmit: 34mA@12v 68 +))) 69 +))) 70 + 71 +((( 56 56 **Interface for Model: LT22222-L:** 73 +))) 57 57 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. 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 +))) 64 64 94 +((( 65 65 **LoRa Spec:** 96 +))) 66 66 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. 98 +* ((( 99 +((( 100 +Frequency Range: 101 +))) 85 85 103 +* ((( 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 + 86 86 == 1.3 Features == 87 87 88 88 * LoRaWAN Class A & Class C protocol ... ... @@ -129,13 +129,21 @@ 129 129 130 130 == 3.1 How it works? == 131 131 202 +((( 132 132 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 +))) 133 133 134 -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. 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 +))) 135 135 210 +((( 136 136 3.2 Example to join LoRaWAN network 212 +))) 137 137 214 +((( 138 138 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 +))) 139 139 140 140 [[image:image-20220523172350-1.png||height="266" width="864"]] 141 141 ... ... @@ -235,7 +235,9 @@ 235 235 236 236 **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins. 237 237 316 +((( 238 238 Total : 11 bytes payload 318 +))) 239 239 240 240 [[image:image-20220523180452-3.png]] 241 241 ... ... @@ -327,7 +327,7 @@ 327 327 **ATZ** 328 328 ))) 329 329 330 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path: #COUNT_COMMAND]].410 +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]]. 331 331 332 332 === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting === 333 333 ... ... @@ -362,7 +362,7 @@ 362 362 ))) 363 363 364 364 365 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path: #COUNT_COMMAND]].445 +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]]. 366 366 367 367 **Plus below command for AVI1 Counting:** 368 368 ... ... @@ -414,7 +414,7 @@ 414 414 **ATZ** 415 415 ))) 416 416 417 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path: #COUNT_COMMAND]].497 +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]]. 418 418 419 419 === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) === 420 420 ... ... @@ -463,7 +463,7 @@ 463 463 464 464 **Downlink Command to set Trigger Condition** 465 465 466 -Type Code: 0xAA. Downlink command same as AT Command [[AT+AVLIM, AT+ACLIM>>path:#AT_Trigger]]546 +Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM** 467 467 468 468 Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4 469 469 ... ... @@ -483,7 +483,7 @@ 483 483 484 484 Same as AT+AVLIM=5000,0,0,0 (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore) 485 485 486 -Example2: AA 02 01 00 566 +**Example2**: AA 02 01 00 487 487 488 488 Same as AT+ DTRI =1,0 (Enable DI1 trigger / disable DI2 trigger) 489 489 ... ... @@ -1043,7 +1043,7 @@ 1043 1043 1044 1044 [[image:image-20220524094641-12.png||height="402" width="718"]] 1045 1045 1046 -**Step 3: Create an account or log in Mydevices.1126 +**Step 3**: Create an account or log in Mydevices. 1047 1047 1048 1048 **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %) 1049 1049 ... ... @@ -1053,7 +1053,6 @@ 1053 1053 1054 1054 After added, the sensor data arrive TTN, it will also arrive and show in Mydevices. 1055 1055 1056 - 1057 1057 [[image:image-20220524094909-1.png||height="335" width="729"]] 1058 1058 1059 1059 [[image:image-20220524094909-2.png||height="337" width="729"]] ... ... @@ -1064,10 +1064,6 @@ 1064 1064 1065 1065 [[image:image-20220524094909-5.png||height="341" width="734"]] 1066 1066 1067 - 1068 - 1069 - 1070 - 1071 1071 == 3.6 Interface Detail == 1072 1072 1073 1073 === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) === ... ... @@ -1083,8 +1083,10 @@ 1083 1083 ))) 1084 1084 1085 1085 ((( 1161 +((( 1086 1086 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 1087 1087 ))) 1164 +))) 1088 1088 1089 1089 [[image:1653357170703-587.png]] 1090 1090 ... ... @@ -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.** 1196 +[[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.** 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. 1198 +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. 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.** 1210 + [[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.** 1134 1134 1135 -If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %) 1212 +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 ... ... @@ -1169,415 +1169,573 @@ 1169 1169 1170 1170 === 3.6.5 Relay Output === 1171 1171 1249 +((( 1172 1172 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: 1251 +))) 1173 1173 1174 - 1175 1175 [[image:image-20220524100215-9.png]] 1176 1176 1177 - 1178 1178 [[image:image-20220524100215-10.png||height="382" width="723"]] 1179 1179 1257 +== 3.7 LEDs Indicators == 1180 1180 1259 +[[image:image-20220524100748-11.png]] 1181 1181 1261 += 4. Use AT Command = 1182 1182 1263 +== 4.1 Access AT Command == 1183 1183 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 - 1225 1225 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. 1226 1226 1227 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]1267 +[[image:1653358238933-385.png]] 1228 1228 1269 +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: 1229 1229 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 shownbelow:1271 +[[image:1653358355238-883.png]] 1231 1231 1232 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]] 1233 - 1234 - 1235 1235 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/]] 1236 1236 1275 +((( 1237 1237 AT+<CMD>? : Help on <CMD> 1277 +))) 1238 1238 1279 +((( 1239 1239 AT+<CMD> : Run <CMD> 1281 +))) 1240 1240 1283 +((( 1241 1241 AT+<CMD>=<value> : Set the value 1285 +))) 1242 1242 1287 +((( 1243 1243 AT+<CMD>=? : Get the value 1289 +))) 1244 1244 1291 +((( 1245 1245 ATZ: Trig a reset of the MCU 1293 +))) 1246 1246 1295 +((( 1247 1247 AT+FDR: Reset Parameters to Factory Default, Keys Reserve 1297 +))) 1248 1248 1299 +((( 1249 1249 AT+DEUI: Get or Set the Device EUI 1301 +))) 1250 1250 1303 +((( 1251 1251 AT+DADDR: Get or Set the Device Address 1305 +))) 1252 1252 1307 +((( 1253 1253 AT+APPKEY: Get or Set the Application Key 1309 +))) 1254 1254 1311 +((( 1255 1255 AT+NWKSKEY: Get or Set the Network Session Key 1313 +))) 1256 1256 1315 +((( 1257 1257 AT+APPSKEY: Get or Set the Application Session Key 1317 +))) 1258 1258 1319 +((( 1259 1259 AT+APPEUI: Get or Set the Application EUI 1321 +))) 1260 1260 1323 +((( 1261 1261 AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on) 1325 +))) 1262 1262 1327 +((( 1263 1263 AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec) 1329 +))) 1264 1264 1331 +((( 1265 1265 AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X) 1333 +))) 1266 1266 1335 +((( 1267 1267 AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing 1337 +))) 1268 1268 1339 +((( 1269 1269 AT+PNM: Get or Set the public network mode. (0: off, 1: on) 1341 +))) 1270 1270 1343 +((( 1271 1271 AT+RX2FQ: Get or Set the Rx2 window frequency 1345 +))) 1272 1272 1347 +((( 1273 1273 AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X) 1349 +))) 1274 1274 1351 +((( 1275 1275 AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms 1353 +))) 1276 1276 1355 +((( 1277 1277 AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms 1357 +))) 1278 1278 1359 +((( 1279 1279 AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms 1361 +))) 1280 1280 1363 +((( 1281 1281 AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms 1365 +))) 1282 1282 1367 +((( 1283 1283 AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA) 1369 +))) 1284 1284 1371 +((( 1285 1285 AT+NWKID: Get or Set the Network ID 1373 +))) 1286 1286 1375 +((( 1287 1287 AT+FCU: Get or Set the Frame Counter Uplink 1377 +))) 1288 1288 1379 +((( 1289 1289 AT+FCD: Get or Set the Frame Counter Downlink 1381 +))) 1290 1290 1383 +((( 1291 1291 AT+CLASS: Get or Set the Device Class 1385 +))) 1292 1292 1387 +((( 1293 1293 AT+JOIN: Join network 1389 +))) 1294 1294 1391 +((( 1295 1295 AT+NJS: Get OTAA Join Status 1393 +))) 1296 1296 1395 +((( 1297 1297 AT+SENDB: Send hexadecimal data along with the application port 1397 +))) 1298 1298 1399 +((( 1299 1299 AT+SEND: Send text data along with the application port 1401 +))) 1300 1300 1403 +((( 1301 1301 AT+RECVB: Print last received data in binary format (with hexadecimal values) 1405 +))) 1302 1302 1407 +((( 1303 1303 AT+RECV: Print last received data in raw format 1409 +))) 1304 1304 1411 +((( 1305 1305 AT+VER: Get current image version and Frequency Band 1413 +))) 1306 1306 1415 +((( 1307 1307 AT+CFM: Get or Set the confirmation mode (0-1) 1417 +))) 1308 1308 1419 +((( 1309 1309 AT+CFS: Get confirmation status of the last AT+SEND (0-1) 1421 +))) 1310 1310 1423 +((( 1311 1311 AT+SNR: Get the SNR of the last received packet 1425 +))) 1312 1312 1427 +((( 1313 1313 AT+RSSI: Get the RSSI of the last received packet 1429 +))) 1314 1314 1431 +((( 1315 1315 AT+TDC: Get or set the application data transmission interval in ms 1433 +))) 1316 1316 1435 +((( 1317 1317 AT+PORT: Get or set the application port 1437 +))) 1318 1318 1439 +((( 1319 1319 AT+DISAT: Disable AT commands 1441 +))) 1320 1320 1443 +((( 1321 1321 AT+PWORD: Set password, max 9 digits 1445 +))) 1322 1322 1447 +((( 1323 1323 AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode 1449 +))) 1324 1324 1451 +((( 1325 1325 AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470 1453 +))) 1326 1326 1455 +((( 1327 1327 AT+CFG: Print all settings 1457 +))) 1328 1328 1459 +== 4.2 Common AT Command Sequence == 1329 1329 1461 +=== 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) === 1330 1330 1331 -1. 1332 -11. Common AT Command Sequence 1333 -111. Multi-channel ABP mode (Use with SX1301/LG308) 1334 - 1463 +((( 1335 1335 If device has not joined network yet: 1465 +))) 1336 1336 1337 -123456 1467 +((( 1468 +(% style="background-color:#dcdcdc" %)123456 1469 +))) 1338 1338 1339 -AT+FDR 1471 +((( 1472 +(% style="background-color:#dcdcdc" %)AT+FDR 1473 +))) 1340 1340 1341 -123456 1475 +((( 1476 +(% style="background-color:#dcdcdc" %)123456 1477 +))) 1342 1342 1343 -AT+NJM=0 1479 +((( 1480 +(% style="background-color:#dcdcdc" %)AT+NJM=0 1481 +))) 1344 1344 1345 -ATZ 1483 +((( 1484 +(% style="background-color:#dcdcdc" %)ATZ 1485 +))) 1346 1346 1347 1347 1488 +((( 1348 1348 If device already joined network: 1490 +))) 1349 1349 1350 -AT+NJM=0 1492 +((( 1493 +(% style="background-color:#dcdcdc" %)AT+NJM=0 1494 +))) 1351 1351 1352 -ATZ 1496 +((( 1497 +(% style="background-color:#dcdcdc" %)ATZ 1498 +))) 1353 1353 1354 -1. 1355 -11. 1356 -111. Single-channel ABP mode (Use with LG01/LG02) 1500 +=== 4.2.2 Single-channel ABP mode (Use with LG01/LG02) === 1357 1357 1358 -123456 Enter Password to have AT access. 1502 +((( 1503 +(% style="background-color:#dcdcdc" %) 123456(%%) Enter Password to have AT access. 1504 +))) 1359 1359 1360 -AT+FDR Reset Parameters to Factory Default, Keys Reserve 1506 +((( 1507 +(% style="background-color:#dcdcdc" %) AT+FDR(%%) Reset Parameters to Factory Default, Keys Reserve 1508 +))) 1361 1361 1362 -123456 Enter Password to have AT access. 1510 +((( 1511 +(% style="background-color:#dcdcdc" %) 123456(%%) Enter Password to have AT access. 1512 +))) 1363 1363 1364 -AT+CLASS=C Set to work in CLASS C 1514 +((( 1515 +(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C 1516 +))) 1365 1365 1366 -AT+NJM=0 Set to ABP mode 1518 +((( 1519 +(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode 1520 +))) 1367 1367 1368 -AT+ADR=0 Set the Adaptive Data Rate Off 1522 +((( 1523 +(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off 1524 +))) 1369 1369 1370 -AT+DR=5 Set Data Rate 1526 +((( 1527 +(% style="background-color:#dcdcdc" %) AT+DR=5(%%) Set Data Rate 1528 +))) 1371 1371 1372 -AT+TDC=60000 Set transmit interval to 60 seconds 1530 +((( 1531 +(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%) Set transmit interval to 60 seconds 1532 +))) 1373 1373 1374 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz 1534 +((( 1535 +(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz 1536 +))) 1375 1375 1376 -AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server) 1538 +((( 1539 +(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server) 1540 +))) 1377 1377 1378 -AT+RX2DR=5 Set RX2DR to match the downlink DR from server. see below 1542 +((( 1543 +(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%) Set RX2DR to match the downlink DR from server. see below 1544 +))) 1379 1379 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. 1546 +((( 1547 +(% 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. 1548 +))) 1381 1381 1382 -ATZ Reset MCU 1550 +((( 1551 +(% style="background-color:#dcdcdc" %) ATZ (%%) Reset MCU 1552 +))) 1383 1383 1384 -**Note:** 1554 +((( 1555 +(% style="color:red" %)**Note:** 1556 +))) 1385 1385 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 1558 +((( 1559 +(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server. 1560 +2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting. 1561 +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. 1562 +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 1563 +))) 1390 1390 1391 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] 1565 +((( 1566 +[[image:1653359097980-169.png||height="188" width="729"]] 1567 +))) 1392 1392 1569 +((( 1570 + 1571 +))) 1393 1393 1394 -1. 1395 -11. 1396 -111. Change to Class A 1573 +=== 4.2.3 Change to Class A === 1397 1397 1398 1398 If sensor JOINED 1399 - 1400 -AT+CLASS=A 1401 - 1576 +(% style="background-color:#dcdcdc" %)AT+CLASS=A 1402 1402 ATZ 1403 1403 1579 += 5. FAQ = 1404 1404 1581 +== 5.1 How to upgrade the image? == 1405 1405 1406 - 1407 - 1408 -1. FAQ 1409 - 1410 -1. 1411 -11. How to upgrade the image? 1412 - 1413 1413 The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to: 1414 1414 1415 1415 * Support new features 1416 1416 * For bug fix 1417 1417 * Change LoRaWAN bands. 1418 - 1419 1419 Below shows the hardware connection for how to upload an image to the LT: 1589 +* [[image:1653359603330-121.png]] 1420 1420 1421 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]] 1422 - 1423 - 1424 1424 **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 - 1426 1426 **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]. 1427 - 1428 1428 **Step3: **Open flashloader; choose the correct COM port to update. 1594 +**For LT-22222-L**: 1595 +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. 1429 1429 1430 - **ForLT-33222-L**:1597 + [[image:image-20220524103407-12.png]] 1431 1431 1432 - Hold down the PRO button and thenmomentarily press the RST reset button and the **DO2 led** will changefrom OFF to ON. When **DO2 LED**is on, itmeans thedevice is in download mode.1599 +[[image:image-20220524103429-13.png]] 1433 1433 1434 - **For LT-22222-L**:1601 +[[image:image-20220524104033-15.png]] 1435 1435 1436 - HolddownthePRO button and thenmomentarilypress theRSTresetbutton andthe**DO1 led** will change fromOFFtoON.When**DO1 LED**is on,itmeansthe device isin download mode.1603 +(% 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: 1437 1437 1605 +[[image:1653360054704-518.png||height="186" width="745"]] 1438 1438 1607 +((( 1608 +((( 1609 +== 5.2 How to change the LoRa Frequency Bands/Region? == 1610 +))) 1611 +))) 1439 1439 1440 - |(((1441 - Board detected1613 +((( 1614 +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. 1442 1442 ))) 1443 1443 1444 - |(((1445 - 1617 +((( 1618 +== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? == 1446 1446 ))) 1447 1447 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 - 1463 -1. 1464 -11. How to change the LoRa Frequency Bands/Region? 1465 - 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 - 1621 +((( 1622 +((( 1472 1472 In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency. 1624 +))) 1625 +))) 1473 1473 1627 +((( 1628 +((( 1474 1474 Assume we have a LG02 working in the frequency 868400000 now , below is the step. 1630 +))) 1631 +))) 1475 1475 1633 +((( 1634 +(% 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. 1635 +))) 1476 1476 1477 -**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. 1637 +((( 1638 +[[image:1653360231087-571.png||height="401" width="727"]] 1639 +))) 1478 1478 1479 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]1641 +(% 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. 1480 1480 1481 - Note:userjustneed to makesureabove threekeysmatch, User canchangeeitherin TTN or Deviceto make thenmatch.InTTN, NETSKEY andAPPSKEYcan be configuredby userinsettingpage, butDeviceAddris generatedby TTN.1643 +(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands: 1482 1482 1645 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access. 1646 +(% style="background-color:#dcdcdc" %)AT+FDR (%%) Reset Parameters to Factory Default, Keys Reserve 1647 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access. 1648 +(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode 1649 +(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off 1650 +(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band) 1651 +(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%)Set transmit interval to 60 seconds 1652 +(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz 1653 +(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1 1654 +(% style="background-color:#dcdcdc" %)ATZ (%%)Reset MCU 1483 1483 1484 -**Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands: 1485 - 1486 -123456 Enter Password to have AT access. 1487 - 1488 -AT+FDR Reset Parameters to Factory Default, Keys Reserve 1489 - 1490 -123456 Enter Password to have AT access. 1491 - 1492 -AT+NJM=0 Set to ABP mode 1493 - 1494 -AT+ADR=0 Set the Adaptive Data Rate Off 1495 - 1496 -AT+DR=5 Set Data Rate (Set AT+DR=3 for 915 band) 1497 - 1498 -AT+TDC=60000 Set transmit interval to 60 seconds 1499 - 1500 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz 1501 - 1502 -AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1 1503 - 1504 -ATZ Reset MCU 1505 - 1506 1506 As shown in below: 1507 1507 1508 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]1658 +[[image:1653360498588-932.png||height="485" width="726"]] 1509 1509 1660 +== 5.4 Can I see counting event in Serial? == 1510 1510 1511 - 1512 -1. 1513 -11. Can I see counting event in Serial? 1514 - 1662 +((( 1515 1515 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. 1664 +))) 1516 1516 1666 +((( 1667 += 6. Trouble Shooting = 1668 +))) 1517 1517 1670 +((( 1671 +((( 1672 +== 6.1 Downlink doesn’t work, how to solve it? == 1673 +))) 1674 +))) 1518 1518 1519 - 1520 -1. Trouble Shooting 1521 -11. Downlink doesn’t work, how to solve it? 1522 - 1676 +((( 1523 1523 Please see this link for how to debug: 1524 1524 1679 +[[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/]] 1680 +))) 1681 + 1682 +((( 1525 1525 [[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]] 1684 +))) 1526 1526 1686 +((( 1687 +== 6.2 Have trouble to upload image. == 1688 +))) 1527 1527 1528 -1. 1529 -11. Have trouble to upload image. 1530 - 1690 +((( 1531 1531 See this link for trouble shooting: 1692 +))) 1532 1532 1694 +((( 1533 1533 [[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 +))) 1534 1534 1698 +((( 1699 +== 6.3 Why I can’t join TTN in US915 /AU915 bands? == 1700 +))) 1535 1535 1536 -1. 1537 -11. Why I can’t join TTN in US915 /AU915 bands? 1538 - 1702 +((( 1539 1539 It might be about the channels mapping. Please see this link for detail: 1704 +))) 1540 1540 1706 +((( 1541 1541 [[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]] 1708 +))) 1542 1542 1710 +((( 1711 += 7. Order Info = 1712 +))) 1543 1543 1714 +((( 1715 +((( 1716 +(% style="color:#4f81bd" %)**LT-22222-L-XXX:** 1717 +))) 1718 +))) 1544 1544 1720 +((( 1721 +((( 1722 +(% style="color:#4f81bd" %)**XXX:** 1723 +))) 1724 +))) 1545 1545 1546 -1. Order Info 1726 +* ((( 1727 +(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433 1728 +))) 1729 +* ((( 1730 +(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868 1731 +))) 1732 +* ((( 1733 +(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920 1734 +))) 1735 +* ((( 1736 +(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470 1737 +))) 1738 +* ((( 1739 +(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923 1740 +))) 1741 +* ((( 1742 +(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915 1743 +))) 1744 +* ((( 1745 +(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915 1746 +))) 1747 +* ((( 1748 +(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865 1749 +))) 1547 1547 1548 -**For LT-33222-L-XXX or LT-22222-L-XXX:** 1751 +((( 1752 +* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779 1549 1549 1550 -**XXX:** 1754 += 8. Packing Info = 1755 +))) 1551 1551 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 1561 - 1562 -1. Packing Info 1563 - 1757 +((( 1758 +((( 1564 1564 **Package Includes**: 1760 +))) 1761 +))) 1565 1565 1566 -* LT I/O Controller x 1 1763 +((( 1764 +((( 1765 +* LT-22222-L I/O Controller x 1 1567 1567 * Stick Antenna for LoRa RF part x 1 1568 1568 * Bracket for controller x1 1569 1569 * Program cable x 1 1769 +))) 1770 +))) 1570 1570 1772 +((( 1773 +((( 1571 1571 **Dimension and weight**: 1775 +))) 1776 +))) 1572 1572 1778 +((( 1779 +((( 1573 1573 * Device Size: 13.5 x 7 x 3 cm 1574 1574 * Device Weight: 105g 1575 1575 * Package Size / pcs : 14.5 x 8 x 5 cm 1576 1576 * Weight / pcs : 170g 1784 +))) 1785 +))) 1577 1577 1578 -1. Support 1787 +((( 1788 += 9. Support = 1789 +))) 1579 1579 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 1791 +* ((( 1792 +((( 1793 +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. 1794 +))) 1795 +))) 1796 +* ((( 1797 +((( 1798 +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 +))) 1800 +))) 1582 1582 1583 -[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]] 1802 +((( 1803 +((( 1804 + [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]] 1805 +))) 1806 + 1807 +((( 1808 += 10. Reference = 1809 + 1810 +* Product Page: 1811 + 1812 +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]] 1813 + 1814 +* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]] 1815 +* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]] 1816 +* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]] 1817 +))) 1818 +)))
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