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 ... ... @@ -249,53 +249,77 @@ 249 249 * FIRST: Indicate this is the first packet after join network. 250 250 * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float. 251 251 332 +((( 252 252 (% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L. 334 +))) 253 253 336 +((( 254 254 **To use counting mode, please run:** 338 +))) 255 255 256 256 (% class="box infomessage" %) 257 257 ((( 342 +((( 258 258 **AT+MOD=2** 259 259 ))) 345 +))) 260 260 261 261 (% class="box infomessage" %) 262 262 ((( 349 +((( 263 263 **ATZ** 264 264 ))) 352 +))) 265 265 354 +((( 266 266 (% style="color:#4f81bd" %)**AT Commands for counting:** 356 +))) 267 267 358 +((( 268 268 **For LT22222-L:** 360 +))) 269 269 270 270 (% class="box infomessage" %) 271 271 ((( 364 +((( 272 272 **AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) ** 273 273 ))) 367 +))) 274 274 275 275 (% class="box infomessage" %) 276 276 ((( 371 +((( 277 277 **AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) ** 278 278 ))) 374 +))) 279 279 280 280 (% class="box infomessage" %) 281 281 ((( 378 +((( 282 282 **AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) ** 283 283 ))) 381 +))) 284 284 285 285 (% class="box infomessage" %) 286 286 ((( 385 +((( 287 287 **AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) ** 288 288 ))) 388 +))) 289 289 290 290 (% class="box infomessage" %) 291 291 ((( 392 +((( 292 292 **AT+SETCNT=1,60 (Set COUNT1 value to 60)** 293 293 ))) 395 +))) 294 294 295 295 (% class="box infomessage" %) 296 296 ((( 399 +((( 297 297 **AT+SETCNT=2,60 (Set COUNT2 value to 60)** 298 298 ))) 402 +))) 299 299 300 300 === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI === 301 301 ... ... @@ -313,21 +313,31 @@ 313 313 * FIRST: Indicate this is the first packet after join network. 314 314 * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float. 315 315 420 +((( 316 316 (% style="color:red" %)Note: DO3 is not valid for LT-22222-L. 422 +))) 317 317 424 +((( 318 318 **To use counting mode, please run:** 426 +))) 319 319 320 320 (% class="box infomessage" %) 321 321 ((( 430 +((( 322 322 **AT+MOD=3** 323 323 ))) 433 +))) 324 324 325 325 (% class="box infomessage" %) 326 326 ((( 437 +((( 327 327 **ATZ** 328 328 ))) 440 +))) 329 329 330 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]]. 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]]. 444 +))) 331 331 332 332 === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting === 333 333 ... ... @@ -347,44 +347,67 @@ 347 347 * FIRST: Indicate this is the first packet after join network. 348 348 * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float. 349 349 464 +((( 350 350 (% style="color:red" %)Note: DO3 is not valid for LT-22222-L. 466 +))) 351 351 468 +((( 352 352 **To use this mode, please run:** 470 +))) 353 353 354 354 (% class="box infomessage" %) 355 355 ((( 474 +((( 356 356 **AT+MOD=4** 357 357 ))) 477 +))) 358 358 359 359 (% class="box infomessage" %) 360 360 ((( 481 +((( 361 361 **ATZ** 362 362 ))) 484 +))) 363 363 486 +((( 487 + 488 +))) 364 364 365 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]]. 490 +((( 491 +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]]. 492 +))) 366 366 494 +((( 367 367 **Plus below command for AVI1 Counting:** 496 +))) 368 368 369 369 (% class="box infomessage" %) 370 370 ((( 500 +((( 371 371 **AT+SETCNT=3,60 (set AVI Count to 60)** 372 372 ))) 503 +))) 373 373 374 374 (% class="box infomessage" %) 375 375 ((( 507 +((( 376 376 **AT+VOLMAX=20000 (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)** 377 377 ))) 510 +))) 378 378 379 379 (% class="box infomessage" %) 380 380 ((( 514 +((( 381 381 **AT+VOLMAX=20000,0 (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)** 382 382 ))) 517 +))) 383 383 384 384 (% class="box infomessage" %) 385 385 ((( 521 +((( 386 386 **AT+VOLMAX=20000,1 (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)** 387 387 ))) 524 +))) 388 388 389 389 === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI === 390 390 ... ... @@ -398,23 +398,35 @@ 398 398 399 399 * RO is for relay. ROx=1 : close,ROx=0 always open. 400 400 * FIRST: Indicate this is the first packet after join network. 401 -* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float. 538 +* ((( 539 +DO is for reverse digital output. DOx=1: output low, DOx=0: high or float. 540 +))) 402 402 542 +((( 403 403 (% style="color:red" %)Note: DO3 is not valid for LT-22222-L. 544 +))) 404 404 546 +((( 405 405 **To use this mode, please run:** 548 +))) 406 406 407 407 (% class="box infomessage" %) 408 408 ((( 552 +((( 409 409 **AT+MOD=5** 410 410 ))) 555 +))) 411 411 412 412 (% class="box infomessage" %) 413 413 ((( 559 +((( 414 414 **ATZ** 415 415 ))) 562 +))) 416 416 417 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]]. 564 +((( 565 +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]]. 566 +))) 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]]615 +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 00 635 +**Example2**: AA 02 01 00 487 487 488 488 Same as AT+ DTRI =1,0 (Enable DI1 trigger / disable DI2 trigger) 489 489 ... ... @@ -1043,55 +1043,51 @@ 1043 1043 1044 1044 [[image:image-20220524094641-12.png||height="402" width="718"]] 1045 1045 1195 +**Step 3**: Create an account or log in Mydevices. 1046 1046 1047 - 1048 -**Step **3: Create an account or log in Mydevices. 1049 - 1050 1050 **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %) 1051 1051 1052 1052 Search under The things network 1053 1053 1054 -[[image:1653356838789-523.png]] 1201 +[[image:1653356838789-523.png||height="337" width="740"]] 1055 1055 1056 - 1057 1057 After added, the sensor data arrive TTN, it will also arrive and show in Mydevices. 1058 1058 1059 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]1205 +[[image:image-20220524094909-1.png||height="335" width="729"]] 1060 1060 1207 +[[image:image-20220524094909-2.png||height="337" width="729"]] 1061 1061 1062 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]1209 +[[image:image-20220524094909-3.png||height="338" width="727"]] 1063 1063 1211 +[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %) 1064 1064 1065 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]1213 +[[image:image-20220524094909-5.png||height="341" width="734"]] 1066 1066 1215 +== 3.6 Interface Detail == 1067 1067 1068 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]1217 +=== 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) === 1069 1069 1070 - 1071 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]] 1072 - 1073 - 1074 -1. 1075 -11. Interface Detail 1076 -111. Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) 1077 - 1078 1078 Support NPN Type sensor 1079 1079 1080 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]1221 +[[image:1653356991268-289.png]] 1081 1081 1223 +=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) === 1082 1082 1083 - 1084 -1. 1085 -11. 1086 -111. Digital Input Port: DI1/DI2 ( For LT-22222-L) 1087 - 1225 +((( 1088 1088 The DI port of LT-22222-L can support NPN or PNP output sensor. 1227 +))) 1089 1089 1229 +((( 1230 +((( 1090 1090 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 1232 +))) 1233 +))) 1091 1091 1092 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]1235 +[[image:1653357170703-587.png]] 1093 1093 1237 +((( 1094 1094 When use need to connect a device to the DI port, both DI1+ and DI1- must be connected. 1239 +))) 1095 1095 1096 1096 1097 1097 **Example1**: Connect to a Low active sensor. ... ... @@ -1101,11 +1101,11 @@ 1101 1101 * Connect sensor’s output to DI1- 1102 1102 * Connect sensor’s VCC to DI1+. 1103 1103 1104 -So when sensor active, the current between NEC2501 pin1 and pin2 is :1249 +So when sensor active, the current between NEC2501 pin1 and pin2 is: 1105 1105 1106 - //IF// [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]= DI1+ / 1K.1251 + //IF// = DI1+ / 1K. 1107 1107 1108 -If DI1+ = 12v, the //IF// [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]= 12mA , So the LT-22222-L will be able to detect this active signal.1253 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal. 1109 1109 1110 1110 1111 1111 **Example2**: Connect to a High active sensor. ... ... @@ -1117,12 +1117,12 @@ 1117 1117 1118 1118 So when sensor active, the current between NEC2501 pin1 and pin2 is: 1119 1119 1120 - //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.1265 +[[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.** 1121 1121 1122 -If DI1+ = 24v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]1267 +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. 1123 1123 1124 1124 1125 -**Example3**: Connect to a 220v high active sensor. 公司测试一下1270 +**Example3**: Connect to a 220v high active sensor. 1126 1126 1127 1127 Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler 1128 1128 ... ... @@ -1131,34 +1131,24 @@ 1131 1131 1132 1132 So when sensor active, the current between NEC2501 pin1 and pin2 is: 1133 1133 1134 - //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]1279 + [[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.** 1135 1135 1136 -If sensor output is 220v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.1281 +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. 1137 1137 1283 +=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 === 1138 1138 1139 -1. 1140 -11. 1141 -111. Digital Output Port: DO1/DO2 /DO3 1142 - 1143 1143 NPN output: GND or Float. Max voltage can apply to output pin is 36v. 1144 1144 1145 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]1287 +[[image:1653357531600-905.png]] 1146 1146 1289 +=== 3.6.4 Analog Input Interface === 1147 1147 1148 - 1149 - 1150 -1. 1151 -11. 1152 -111. Analog Input Interface 1153 - 1154 1154 The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is: 1155 1155 1156 -AC2 = (IN2 voltage )/12 1293 +**AC2 = (IN2 voltage )/12** 1157 1157 1158 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]1295 +[[image:1653357592296-182.png]] 1159 1159 1160 - 1161 - 1162 1162 Example to connect a 4~~20mA sensor 1163 1163 1164 1164 We take the wind speed sensor as an example for reference only. ... ... @@ -1174,423 +1174,579 @@ 1174 1174 1175 1175 Connection diagram: 1176 1176 1177 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg]]1312 +[[image:1653357640609-758.png]] 1178 1178 1179 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]1314 +[[image:1653357648330-671.png||height="155" width="733"]] 1180 1180 1316 +=== 3.6.5 Relay Output === 1181 1181 1182 - 1183 -1. 1184 -11. 1185 -111. Relay Output 1186 - 1318 +((( 1187 1187 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: 1320 +))) 1188 1188 1189 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]1322 +[[image:image-20220524100215-9.png]] 1190 1190 1324 +[[image:image-20220524100215-10.png||height="382" width="723"]] 1191 1191 1192 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]1326 +== 3.7 LEDs Indicators == 1193 1193 1328 +[[image:image-20220524100748-11.png]] 1194 1194 1330 += 4. Use AT Command = 1195 1195 1332 +== 4.1 Access AT Command == 1196 1196 1197 - 1198 -1. 1199 -11. LEDs Indicators 1200 - 1201 -(% border="1" style="background-color:#f7faff" %) 1202 -|**LEDs**|**Feature** 1203 -|**PWR**|Always on if there is power 1204 -|**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. 1205 -|**TX**|((( 1206 -Device boot: TX blinks 5 times. 1207 - 1208 -Successful join network: TX ON for 5 seconds. 1209 - 1210 -Transmit a LoRa packet: TX blinks once 1211 -))) 1212 -|**RX**|RX blinks once when receive a packet. 1213 -|**DO1**| 1214 -|**DO2**| 1215 -|**DO3**| 1216 -|**DI2**|((( 1217 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low 1218 - 1219 -For LT-33222-L: ON when DI2 is low, LOW when DI2 is high 1220 -))) 1221 -|**DI2**|((( 1222 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low 1223 - 1224 -For LT-33222-L: ON when DI2 is low, LOW when DI2 is high 1225 -))) 1226 -|**DI3**|For LT-33222-L ONLY: ON when DI3 is low, LOW when DI3 is high 1227 -|**DI2**|((( 1228 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low 1229 - 1230 -For LT-33222-L: ON when DI2 is low, LOW when DI2 is high 1231 -))) 1232 -|**RO1**| 1233 -|**RO2**| 1234 - 1235 -1. Use AT Command 1236 -11. Access AT Command 1237 - 1238 1238 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. 1239 1239 1240 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]1336 +[[image:1653358238933-385.png]] 1241 1241 1338 +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: 1242 1242 1243 - 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:1340 +[[image:1653358355238-883.png]] 1244 1244 1245 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]] 1246 - 1247 - 1248 1248 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/]] 1249 1249 1344 +((( 1250 1250 AT+<CMD>? : Help on <CMD> 1346 +))) 1251 1251 1348 +((( 1252 1252 AT+<CMD> : Run <CMD> 1350 +))) 1253 1253 1352 +((( 1254 1254 AT+<CMD>=<value> : Set the value 1354 +))) 1255 1255 1356 +((( 1256 1256 AT+<CMD>=? : Get the value 1358 +))) 1257 1257 1360 +((( 1258 1258 ATZ: Trig a reset of the MCU 1362 +))) 1259 1259 1364 +((( 1260 1260 AT+FDR: Reset Parameters to Factory Default, Keys Reserve 1366 +))) 1261 1261 1368 +((( 1262 1262 AT+DEUI: Get or Set the Device EUI 1370 +))) 1263 1263 1372 +((( 1264 1264 AT+DADDR: Get or Set the Device Address 1374 +))) 1265 1265 1376 +((( 1266 1266 AT+APPKEY: Get or Set the Application Key 1378 +))) 1267 1267 1380 +((( 1268 1268 AT+NWKSKEY: Get or Set the Network Session Key 1382 +))) 1269 1269 1384 +((( 1270 1270 AT+APPSKEY: Get or Set the Application Session Key 1386 +))) 1271 1271 1388 +((( 1272 1272 AT+APPEUI: Get or Set the Application EUI 1390 +))) 1273 1273 1392 +((( 1274 1274 AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on) 1394 +))) 1275 1275 1396 +((( 1276 1276 AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec) 1398 +))) 1277 1277 1400 +((( 1278 1278 AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X) 1402 +))) 1279 1279 1404 +((( 1280 1280 AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing 1406 +))) 1281 1281 1408 +((( 1282 1282 AT+PNM: Get or Set the public network mode. (0: off, 1: on) 1410 +))) 1283 1283 1412 +((( 1284 1284 AT+RX2FQ: Get or Set the Rx2 window frequency 1414 +))) 1285 1285 1416 +((( 1286 1286 AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X) 1418 +))) 1287 1287 1420 +((( 1288 1288 AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms 1422 +))) 1289 1289 1424 +((( 1290 1290 AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms 1426 +))) 1291 1291 1428 +((( 1292 1292 AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms 1430 +))) 1293 1293 1432 +((( 1294 1294 AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms 1434 +))) 1295 1295 1436 +((( 1296 1296 AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA) 1438 +))) 1297 1297 1440 +((( 1298 1298 AT+NWKID: Get or Set the Network ID 1442 +))) 1299 1299 1444 +((( 1300 1300 AT+FCU: Get or Set the Frame Counter Uplink 1446 +))) 1301 1301 1448 +((( 1302 1302 AT+FCD: Get or Set the Frame Counter Downlink 1450 +))) 1303 1303 1452 +((( 1304 1304 AT+CLASS: Get or Set the Device Class 1454 +))) 1305 1305 1456 +((( 1306 1306 AT+JOIN: Join network 1458 +))) 1307 1307 1460 +((( 1308 1308 AT+NJS: Get OTAA Join Status 1462 +))) 1309 1309 1464 +((( 1310 1310 AT+SENDB: Send hexadecimal data along with the application port 1466 +))) 1311 1311 1468 +((( 1312 1312 AT+SEND: Send text data along with the application port 1470 +))) 1313 1313 1472 +((( 1314 1314 AT+RECVB: Print last received data in binary format (with hexadecimal values) 1474 +))) 1315 1315 1476 +((( 1316 1316 AT+RECV: Print last received data in raw format 1478 +))) 1317 1317 1480 +((( 1318 1318 AT+VER: Get current image version and Frequency Band 1482 +))) 1319 1319 1484 +((( 1320 1320 AT+CFM: Get or Set the confirmation mode (0-1) 1486 +))) 1321 1321 1488 +((( 1322 1322 AT+CFS: Get confirmation status of the last AT+SEND (0-1) 1490 +))) 1323 1323 1492 +((( 1324 1324 AT+SNR: Get the SNR of the last received packet 1494 +))) 1325 1325 1496 +((( 1326 1326 AT+RSSI: Get the RSSI of the last received packet 1498 +))) 1327 1327 1500 +((( 1328 1328 AT+TDC: Get or set the application data transmission interval in ms 1502 +))) 1329 1329 1504 +((( 1330 1330 AT+PORT: Get or set the application port 1506 +))) 1331 1331 1508 +((( 1332 1332 AT+DISAT: Disable AT commands 1510 +))) 1333 1333 1512 +((( 1334 1334 AT+PWORD: Set password, max 9 digits 1514 +))) 1335 1335 1516 +((( 1336 1336 AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode 1518 +))) 1337 1337 1520 +((( 1338 1338 AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470 1522 +))) 1339 1339 1524 +((( 1340 1340 AT+CFG: Print all settings 1526 +))) 1341 1341 1528 +== 4.2 Common AT Command Sequence == 1342 1342 1530 +=== 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) === 1343 1343 1344 -1. 1345 -11. Common AT Command Sequence 1346 -111. Multi-channel ABP mode (Use with SX1301/LG308) 1347 - 1532 +((( 1348 1348 If device has not joined network yet: 1534 +))) 1349 1349 1350 -123456 1536 +((( 1537 +(% style="background-color:#dcdcdc" %)123456 1538 +))) 1351 1351 1352 -AT+FDR 1540 +((( 1541 +(% style="background-color:#dcdcdc" %)AT+FDR 1542 +))) 1353 1353 1354 -123456 1544 +((( 1545 +(% style="background-color:#dcdcdc" %)123456 1546 +))) 1355 1355 1356 -AT+NJM=0 1548 +((( 1549 +(% style="background-color:#dcdcdc" %)AT+NJM=0 1550 +))) 1357 1357 1358 -ATZ 1552 +((( 1553 +(% style="background-color:#dcdcdc" %)ATZ 1554 +))) 1359 1359 1360 1360 1557 +((( 1361 1361 If device already joined network: 1559 +))) 1362 1362 1363 -AT+NJM=0 1561 +((( 1562 +(% style="background-color:#dcdcdc" %)AT+NJM=0 1563 +))) 1364 1364 1365 -ATZ 1565 +((( 1566 +(% style="background-color:#dcdcdc" %)ATZ 1567 +))) 1366 1366 1367 -1. 1368 -11. 1369 -111. Single-channel ABP mode (Use with LG01/LG02) 1569 +=== 4.2.2 Single-channel ABP mode (Use with LG01/LG02) === 1370 1370 1371 -123456 Enter Password to have AT access. 1571 +((( 1572 +(% style="background-color:#dcdcdc" %) 123456(%%) Enter Password to have AT access. 1573 +))) 1372 1372 1373 -AT+FDR Reset Parameters to Factory Default, Keys Reserve 1575 +((( 1576 +(% style="background-color:#dcdcdc" %) AT+FDR(%%) Reset Parameters to Factory Default, Keys Reserve 1577 +))) 1374 1374 1375 -123456 Enter Password to have AT access. 1579 +((( 1580 +(% style="background-color:#dcdcdc" %) 123456(%%) Enter Password to have AT access. 1581 +))) 1376 1376 1377 -AT+CLASS=C Set to work in CLASS C 1583 +((( 1584 +(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C 1585 +))) 1378 1378 1379 -AT+NJM=0 Set to ABP mode 1587 +((( 1588 +(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode 1589 +))) 1380 1380 1381 -AT+ADR=0 Set the Adaptive Data Rate Off 1591 +((( 1592 +(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off 1593 +))) 1382 1382 1383 -AT+DR=5 Set Data Rate 1595 +((( 1596 +(% style="background-color:#dcdcdc" %) AT+DR=5(%%) Set Data Rate 1597 +))) 1384 1384 1385 -AT+TDC=60000 Set transmit interval to 60 seconds 1599 +((( 1600 +(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%) Set transmit interval to 60 seconds 1601 +))) 1386 1386 1387 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz 1603 +((( 1604 +(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz 1605 +))) 1388 1388 1389 -AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server) 1607 +((( 1608 +(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server) 1609 +))) 1390 1390 1391 -AT+RX2DR=5 Set RX2DR to match the downlink DR from server. see below 1611 +((( 1612 +(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%) Set RX2DR to match the downlink DR from server. see below 1613 +))) 1392 1392 1393 -AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal. 1615 +((( 1616 +(% 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. 1617 +))) 1394 1394 1395 -ATZ Reset MCU 1619 +((( 1620 +(% style="background-color:#dcdcdc" %) ATZ (%%) Reset MCU 1621 +))) 1396 1396 1397 -**Note:** 1623 +((( 1624 +(% style="color:red" %)**Note:** 1625 +))) 1398 1398 1399 -1. Make sure the device is set to ABP mode in the IoT Server. 1400 -1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting. 1401 -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. 1402 -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 1627 +((( 1628 +(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server. 1629 +2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting. 1630 +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. 1631 +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 1632 +))) 1403 1403 1404 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] 1634 +((( 1635 +[[image:1653359097980-169.png||height="188" width="729"]] 1636 +))) 1405 1405 1638 +((( 1639 + 1640 +))) 1406 1406 1407 -1. 1408 -11. 1409 -111. Change to Class A 1642 +=== 4.2.3 Change to Class A === 1410 1410 1411 1411 If sensor JOINED 1412 - 1413 -AT+CLASS=A 1414 - 1645 +(% style="background-color:#dcdcdc" %)AT+CLASS=A 1415 1415 ATZ 1416 1416 1648 += 5. FAQ = 1417 1417 1650 +== 5.1 How to upgrade the image? == 1418 1418 1419 - 1420 - 1421 -1. FAQ 1422 - 1423 -1. 1424 -11. How to upgrade the image? 1425 - 1426 1426 The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to: 1427 1427 1428 1428 * Support new features 1429 1429 * For bug fix 1430 1430 * Change LoRaWAN bands. 1431 - 1432 1432 Below shows the hardware connection for how to upload an image to the LT: 1658 +* [[image:1653359603330-121.png]] 1433 1433 1434 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]] 1435 - 1436 - 1437 1437 **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]]. 1438 - 1439 1439 **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]. 1440 - 1441 1441 **Step3: **Open flashloader; choose the correct COM port to update. 1663 +**For LT-22222-L**: 1664 +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. 1442 1442 1443 - **ForLT-33222-L**:1666 + [[image:image-20220524103407-12.png]] 1444 1444 1445 - 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.1668 +[[image:image-20220524103429-13.png]] 1446 1446 1447 - **For LT-22222-L**:1670 +[[image:image-20220524104033-15.png]] 1448 1448 1449 - HolddownthePRO button and thenmomentarilypress theRSTresetbutton andthe**DO1 led** will change fromOFFtoON.When**DO1 LED**is on,itmeansthe device isin download mode.1672 +(% 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: 1450 1450 1674 +[[image:1653360054704-518.png||height="186" width="745"]] 1451 1451 1676 +((( 1677 +((( 1678 +== 5.2 How to change the LoRa Frequency Bands/Region? == 1679 +))) 1680 +))) 1452 1452 1453 - |(((1454 - Board detected1682 +((( 1683 +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. 1455 1455 ))) 1456 1456 1457 - |(((1458 - 1686 +((( 1687 +== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? == 1459 1459 ))) 1460 1460 1461 -[[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]] 1462 - 1463 - 1464 - 1465 -[[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]] 1466 - 1467 - 1468 -[[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]] 1469 - 1470 - 1471 -**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is: 1472 - 1473 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]] 1474 - 1475 - 1476 -1. 1477 -11. How to change the LoRa Frequency Bands/Region? 1478 - 1479 -User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download. 1480 - 1481 - 1482 -1. 1483 -11. How to set up LT to work with Single Channel Gateway such as LG01/LG02? 1484 - 1690 +((( 1691 +((( 1485 1485 In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency. 1693 +))) 1694 +))) 1486 1486 1696 +((( 1697 +((( 1487 1487 Assume we have a LG02 working in the frequency 868400000 now , below is the step. 1699 +))) 1700 +))) 1488 1488 1702 +((( 1703 +(% 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. 1704 +))) 1489 1489 1490 -**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. 1706 +((( 1707 +[[image:1653360231087-571.png||height="401" width="727"]] 1708 +))) 1491 1491 1492 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]1710 +(% 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. 1493 1493 1494 - Note:userjustneed to makesureabove threekeysmatch, User canchangeeitherin TTN or Deviceto make thenmatch.InTTN, NETSKEY andAPPSKEYcan be configuredby userinsettingpage, butDeviceAddris generatedby TTN.1712 +(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands: 1495 1495 1714 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access. 1715 +(% style="background-color:#dcdcdc" %)AT+FDR (%%) Reset Parameters to Factory Default, Keys Reserve 1716 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access. 1717 +(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode 1718 +(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off 1719 +(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band) 1720 +(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%)Set transmit interval to 60 seconds 1721 +(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz 1722 +(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1 1723 +(% style="background-color:#dcdcdc" %)ATZ (%%)Reset MCU 1496 1496 1497 -**Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands: 1498 - 1499 -123456 Enter Password to have AT access. 1500 - 1501 -AT+FDR Reset Parameters to Factory Default, Keys Reserve 1502 - 1503 -123456 Enter Password to have AT access. 1504 - 1505 -AT+NJM=0 Set to ABP mode 1506 - 1507 -AT+ADR=0 Set the Adaptive Data Rate Off 1508 - 1509 -AT+DR=5 Set Data Rate (Set AT+DR=3 for 915 band) 1510 - 1511 -AT+TDC=60000 Set transmit interval to 60 seconds 1512 - 1513 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz 1514 - 1515 -AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1 1516 - 1517 -ATZ Reset MCU 1518 - 1519 1519 As shown in below: 1520 1520 1521 -[[image: file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]1727 +[[image:1653360498588-932.png||height="485" width="726"]] 1522 1522 1729 +== 5.4 Can I see counting event in Serial? == 1523 1523 1524 - 1525 -1. 1526 -11. Can I see counting event in Serial? 1527 - 1731 +((( 1528 1528 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. 1733 +))) 1529 1529 1735 +((( 1736 += 6. Trouble Shooting = 1737 +))) 1530 1530 1739 +((( 1740 +((( 1741 +== 6.1 Downlink doesn’t work, how to solve it? == 1742 +))) 1743 +))) 1531 1531 1532 - 1533 -1. Trouble Shooting 1534 -11. Downlink doesn’t work, how to solve it? 1535 - 1745 +((( 1536 1536 Please see this link for how to debug: 1537 1537 1748 +[[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/]] 1749 +))) 1750 + 1751 +((( 1538 1538 [[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]] 1753 +))) 1539 1539 1755 +((( 1756 +== 6.2 Have trouble to upload image. == 1757 +))) 1540 1540 1541 -1. 1542 -11. Have trouble to upload image. 1543 - 1759 +((( 1544 1544 See this link for trouble shooting: 1761 +))) 1545 1545 1763 +((( 1546 1546 [[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]] 1765 +))) 1547 1547 1767 +((( 1768 +== 6.3 Why I can’t join TTN in US915 /AU915 bands? == 1769 +))) 1548 1548 1549 -1. 1550 -11. Why I can’t join TTN in US915 /AU915 bands? 1551 - 1771 +((( 1552 1552 It might be about the channels mapping. Please see this link for detail: 1773 +))) 1553 1553 1775 +((( 1554 1554 [[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]] 1777 +))) 1555 1555 1779 +((( 1780 += 7. Order Info = 1781 +))) 1556 1556 1783 +((( 1784 +((( 1785 +(% style="color:#4f81bd" %)**LT-22222-L-XXX:** 1786 +))) 1787 +))) 1557 1557 1789 +((( 1790 +((( 1791 +(% style="color:#4f81bd" %)**XXX:** 1792 +))) 1793 +))) 1558 1558 1559 -1. Order Info 1795 +* ((( 1796 +(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433 1797 +))) 1798 +* ((( 1799 +(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868 1800 +))) 1801 +* ((( 1802 +(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920 1803 +))) 1804 +* ((( 1805 +(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470 1806 +))) 1807 +* ((( 1808 +(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923 1809 +))) 1810 +* ((( 1811 +(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915 1812 +))) 1813 +* ((( 1814 +(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915 1815 +))) 1816 +* ((( 1817 +(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865 1818 +))) 1560 1560 1561 -**For LT-33222-L-XXX or LT-22222-L-XXX:** 1820 +((( 1821 +* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779 1562 1562 1563 -**XXX:** 1823 += 8. Packing Info = 1824 +))) 1564 1564 1565 -* **EU433**: LT with frequency bands EU433 1566 -* **EU868**: LT with frequency bands EU868 1567 -* **KR920**: LT with frequency bands KR920 1568 -* **CN470**: LT with frequency bands CN470 1569 -* **AS923**: LT with frequency bands AS923 1570 -* **AU915**: LT with frequency bands AU915 1571 -* **US915**: LT with frequency bands US915 1572 -* **IN865**: LT with frequency bands IN865 1573 -* **CN779**: LT with frequency bands CN779 1574 - 1575 -1. Packing Info 1576 - 1826 +((( 1827 +((( 1577 1577 **Package Includes**: 1829 +))) 1830 +))) 1578 1578 1579 -* LT I/O Controller x 1 1832 +((( 1833 +((( 1834 +* LT-22222-L I/O Controller x 1 1580 1580 * Stick Antenna for LoRa RF part x 1 1581 1581 * Bracket for controller x1 1582 1582 * Program cable x 1 1838 +))) 1839 +))) 1583 1583 1841 +((( 1842 +((( 1584 1584 **Dimension and weight**: 1844 +))) 1845 +))) 1585 1585 1847 +((( 1848 +((( 1586 1586 * Device Size: 13.5 x 7 x 3 cm 1587 1587 * Device Weight: 105g 1588 1588 * Package Size / pcs : 14.5 x 8 x 5 cm 1589 1589 * Weight / pcs : 170g 1853 +))) 1854 +))) 1590 1590 1591 -1. Support 1856 +((( 1857 += 9. Support = 1858 +))) 1592 1592 1593 -* 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. 1594 -* 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 1860 +* ((( 1861 +((( 1862 +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. 1863 +))) 1864 +))) 1865 +* ((( 1866 +((( 1867 +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 1868 +))) 1869 +))) 1595 1595 1596 -[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]] 1871 +((( 1872 +((( 1873 + [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]] 1874 +))) 1875 + 1876 +((( 1877 += 10. Reference = 1878 + 1879 +* Product Page: 1880 + 1881 +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]] 1882 + 1883 +* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]] 1884 +* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]] 1885 +* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]] 1886 +))) 1887 +)))
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