Skip to Content
Last modified by Mengting Qiu on 2025/06/04 18:42
From version 44.2
edited by Xiaoling
on 2022/05/24 09:50
Change comment: There is no comment for this version
To version 68.7
edited by Xiaoling
on 2022/05/25 14:53
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -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
... ... @@ -129,17 +129,22 @@
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>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
208 +)))
135 135  
136 -3.2 Example to join LoRaWAN network
210 +== 3.2 Example to join LoRaWAN network ==
137 137  
212 +(((
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. 
214 +)))
139 139  
140 140  [[image:image-20220523172350-1.png||height="266" width="864"]]
141 141  
142 -
143 143  (((
144 144  The LG308 is already set to connect to [[TTN network >>url:https://www.thethingsnetwork.org/]]. So what we need to do now is only configure register this device to TTN:
145 145  )))
... ... @@ -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  
313 +(((
238 238  Total : 11 bytes payload
315 +)))
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  
329 +(((
252 252  (% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
331 +)))
253 253  
333 +(((
254 254  **To use counting mode, please run:**
335 +)))
255 255  
256 256  (% class="box infomessage" %)
257 257  (((
339 +(((
258 258  **AT+MOD=2**
259 259  )))
342 +)))
260 260  
261 261  (% class="box infomessage" %)
262 262  (((
346 +(((
263 263  **ATZ**
264 264  )))
349 +)))
265 265  
351 +(((
266 266  (% style="color:#4f81bd" %)**AT Commands for counting:**
353 +)))
267 267  
355 +(((
268 268  **For LT22222-L:**
357 +)))
269 269  
270 270  (% class="box infomessage" %)
271 271  (((
361 +(((
272 272  **AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
273 273  )))
364 +)))
274 274  
275 275  (% class="box infomessage" %)
276 276  (((
368 +(((
277 277  **AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
278 278  )))
371 +)))
279 279  
280 280  (% class="box infomessage" %)
281 281  (((
375 +(((
282 282  **AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
283 283  )))
378 +)))
284 284  
285 285  (% class="box infomessage" %)
286 286  (((
382 +(((
287 287  **AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
288 288  )))
385 +)))
289 289  
290 290  (% class="box infomessage" %)
291 291  (((
389 +(((
292 292  **AT+SETCNT=1,60   (Set COUNT1 value to 60)**
293 293  )))
392 +)))
294 294  
295 295  (% class="box infomessage" %)
296 296  (((
396 +(((
297 297  **AT+SETCNT=2,60   (Set COUNT2 value to 60)**
298 298  )))
399 +)))
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  
417 +(((
316 316  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
419 +)))
317 317  
421 +(((
318 318  **To use counting mode, please run:**
423 +)))
319 319  
320 320  (% class="box infomessage" %)
321 321  (((
427 +(((
322 322  **AT+MOD=3**
323 323  )))
430 +)))
324 324  
325 325  (% class="box infomessage" %)
326 326  (((
434 +(((
327 327  **ATZ**
328 328  )))
437 +)))
329 329  
330 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
439 +(((
440 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
441 +)))
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  
461 +(((
350 350  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
463 +)))
351 351  
465 +(((
352 352  **To use this mode, please run:**
467 +)))
353 353  
354 354  (% class="box infomessage" %)
355 355  (((
471 +(((
356 356  **AT+MOD=4**
357 357  )))
474 +)))
358 358  
359 359  (% class="box infomessage" %)
360 360  (((
478 +(((
361 361  **ATZ**
362 362  )))
481 +)))
363 363  
483 +(((
484 +
485 +)))
364 364  
365 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
487 +(((
488 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
489 +)))
366 366  
491 +(((
367 367  **Plus below command for AVI1 Counting:**
493 +)))
368 368  
369 369  (% class="box infomessage" %)
370 370  (((
497 +(((
371 371  **AT+SETCNT=3,60   (set AVI Count to 60)**
372 372  )))
500 +)))
373 373  
374 374  (% class="box infomessage" %)
375 375  (((
504 +(((
376 376  **AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
377 377  )))
507 +)))
378 378  
379 379  (% class="box infomessage" %)
380 380  (((
511 +(((
381 381  **AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
382 382  )))
514 +)))
383 383  
384 384  (% class="box infomessage" %)
385 385  (((
518 +(((
386 386  **AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
387 387  )))
521 +)))
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.
535 +* (((
536 +DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
537 +)))
402 402  
539 +(((
403 403  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
541 +)))
404 404  
543 +(((
405 405  **To use this mode, please run:**
545 +)))
406 406  
407 407  (% class="box infomessage" %)
408 408  (((
549 +(((
409 409  **AT+MOD=5**
410 410  )))
552 +)))
411 411  
412 412  (% class="box infomessage" %)
413 413  (((
556 +(((
414 414  **ATZ**
415 415  )))
559 +)))
416 416  
417 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
561 +(((
562 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
563 +)))
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]]
612 +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
632 +**Example2**: AA 02 01 00
487 487  
488 488  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
489 489  
... ... @@ -556,7 +556,7 @@
556 556  
557 557  === 3.4.1 Common Commands ===
558 558  
559 -They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>http://8.211.40.43:8080/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
705 +They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>EndDeviceATCommandsandDownlinkCommand]]
560 560  
561 561  === 3.4.2 Sensor related commands ===
562 562  
... ... @@ -822,8 +822,10 @@
822 822  
823 823  (% class="box infomessage" %)
824 824  (((
971 +(((
825 825  **0xA9 aa bb cc     ~/~/ Set DO1/DO2/DO3 output with time control**
826 826  )))
974 +)))
827 827  
828 828  This is to control the digital output time of DO pin. Include four bytes:
829 829  
... ... @@ -1026,24 +1026,29 @@
1026 1026  **0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,**
1027 1027  )))
1028 1028  
1177 +(((
1029 1029  range: aa bb cc:0 to 16777215,  (unit:second)
1179 +)))
1030 1030  
1031 1031  == 3.5 Integrate with Mydevice ==
1032 1032  
1033 1033  Mydevices provides a human friendly interface to show the sensor data, once we have data in TTN, we can use Mydevices to connect to TTN and see the data in Mydevices. Below are the steps:
1034 1034  
1185 +(((
1035 1035  **Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1187 +)))
1036 1036  
1189 +(((
1037 1037  **Step 2**: To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1191 +)))
1038 1038  
1039 1039  [[image:1653356737703-362.png||height="232" width="732"]]
1040 1040  
1041 1041  [[image:image-20220524094641-11.png||height="390" width="723"]]
1042 1042  
1043 -
1044 1044  [[image:image-20220524094641-12.png||height="402" width="718"]]
1045 1045  
1046 -**Step **3: Create an account or log in Mydevices.
1199 +**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  
... ... @@ -1051,29 +1051,18 @@
1051 1051  
1052 1052  [[image:1653356838789-523.png||height="337" width="740"]]
1053 1053  
1054 -
1055 1055  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1056 1056  
1209 +[[image:image-20220524094909-1.png||height="335" width="729"]]
1057 1057  
1058 -[[image:image-20220524094909-1.png]]
1211 +[[image:image-20220524094909-2.png||height="337" width="729"]]
1059 1059  
1213 +[[image:image-20220524094909-3.png||height="338" width="727"]]
1060 1060  
1061 -[[image:image-20220524094909-2.png]]
1215 +[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1062 1062  
1217 +[[image:image-20220524094909-5.png||height="341" width="734"]]
1063 1063  
1064 -[[image:image-20220524094909-3.png]]
1065 -
1066 -
1067 -[[image:image-20220524094909-4.png]]
1068 -
1069 -
1070 -[[image:image-20220524094909-5.png]]
1071 -
1072 -
1073 -
1074 -
1075 -
1076 -
1077 1077  == 3.6 Interface Detail ==
1078 1078  
1079 1079  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1082,19 +1082,23 @@
1082 1082  
1083 1083  [[image:1653356991268-289.png]]
1084 1084  
1227 +=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1085 1085  
1086 -
1087 -1.
1088 -11.
1089 -111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
1090 -
1229 +(((
1091 1091  The DI port of LT-22222-L can support NPN or PNP output sensor.
1231 +)))
1092 1092  
1233 +(((
1234 +(((
1093 1093  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
1236 +)))
1237 +)))
1094 1094  
1095 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
1239 +[[image:1653357170703-587.png]]
1096 1096  
1241 +(((
1097 1097  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1243 +)))
1098 1098  
1099 1099  
1100 1100  **Example1**: Connect to a Low active sensor.
... ... @@ -1104,11 +1104,11 @@
1104 1104  * Connect sensor’s output to DI1-
1105 1105  * Connect sensor’s VCC to DI1+.
1106 1106  
1107 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1108 1108  
1109 - //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1255 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/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.**
1110 1110  
1111 -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.
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1112 1112  
1113 1113  
1114 1114  **Example2**: Connect to a High active sensor.
... ... @@ -1120,12 +1120,12 @@
1120 1120  
1121 1121  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1122 1122  
1123 - //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1269 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/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.**
1124 1124  
1125 -If DI1+ = 24v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 24mA , So the LT-22222-L will be able to detect this high active signal.
1271 +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:/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.
1126 1126  
1127 1127  
1128 -**Example3**: Connect to a 220v high active sensor.公司测试一下
1274 +**Example3**: Connect to a 220v high active sensor.
1129 1129  
1130 1130  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1131 1131  
... ... @@ -1134,34 +1134,24 @@
1134 1134  
1135 1135  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1136 1136  
1137 - //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 51K.
1283 + [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/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.**
1138 1138  
1139 -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.
1285 +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.
1140 1140  
1287 +=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1141 1141  
1142 -1.
1143 -11.
1144 -111. Digital Output Port: DO1/DO2 /DO3
1145 -
1146 1146  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1147 1147  
1148 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1291 +[[image:1653357531600-905.png]]
1149 1149  
1293 +=== 3.6.4 Analog Input Interface ===
1150 1150  
1151 -
1152 -
1153 -1.
1154 -11.
1155 -111. Analog Input Interface
1156 -
1157 1157  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:
1158 1158  
1159 -AC2 = (IN2 voltage )/12
1297 +**AC2 = (IN2 voltage )/12**
1160 1160  
1161 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
1299 +[[image:1653357592296-182.png]]
1162 1162  
1163 -
1164 -
1165 1165  Example to connect a 4~~20mA sensor
1166 1166  
1167 1167  We take the wind speed sensor as an example for reference only.
... ... @@ -1177,423 +1177,620 @@
1177 1177  
1178 1178  Connection diagram:
1179 1179  
1180 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg]]
1316 +[[image:1653357640609-758.png]]
1181 1181  
1182 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1318 +[[image:1653357648330-671.png||height="155" width="733"]]
1183 1183  
1320 +=== 3.6.5 Relay Output ===
1184 1184  
1185 -
1186 -1.
1187 -11.
1188 -111. Relay Output
1189 -
1322 +(((
1190 1190  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:
1324 +)))
1191 1191  
1192 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1326 +[[image:image-20220524100215-9.png]]
1193 1193  
1328 +[[image:image-20220524100215-10.png||height="382" width="723"]]
1194 1194  
1195 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1330 +== 3.7 LEDs Indicators ==
1196 1196  
1332 +[[image:image-20220524100748-11.png]]
1197 1197  
1334 += 4. Use AT Command =
1198 1198  
1336 +== 4.1 Access AT Command ==
1199 1199  
1338 +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.
1200 1200  
1201 -1.
1202 -11. LEDs Indicators
1340 +[[image:1653358238933-385.png]]
1203 1203  
1204 -(% border="1" style="background-color:#f7faff" %)
1205 -|**LEDs**|**Feature**
1206 -|**PWR**|Always on if there is power
1207 -|**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.
1208 -|**TX**|(((
1209 -Device boot: TX blinks 5 times.
1210 -
1211 -Successful join network: TX ON for 5 seconds.
1212 -
1213 -Transmit a LoRa packet: TX blinks once
1342 +(((
1343 +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:
1214 1214  )))
1215 -|**RX**|RX blinks once when receive a packet.
1216 -|**DO1**|
1217 -|**DO2**|
1218 -|**DO3**|
1219 -|**DI2**|(((
1220 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1221 1221  
1222 -For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1223 -)))
1224 -|**DI2**|(((
1225 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1346 +[[image:1653358355238-883.png]]
1226 1226  
1227 -For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1348 +(((
1349 +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/]]
1228 1228  )))
1229 -|**DI3**|For LT-33222-L ONLY: ON when DI3 is low, LOW when DI3 is high
1230 -|**DI2**|(((
1231 -For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1232 1232  
1233 -For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1352 +(((
1353 +AT+<CMD>?        : Help on <CMD>
1234 1234  )))
1235 -|**RO1**|
1236 -|**RO2**|
1237 1237  
1238 -1. Use AT Command
1239 -11. Access AT Command
1240 -
1241 -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.
1242 -
1243 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1244 -
1245 -
1246 -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:
1247 -
1248 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1249 -
1250 -
1251 -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/]]
1252 -
1253 -AT+<CMD>?        : Help on <CMD>
1254 -
1356 +(((
1255 1255  AT+<CMD>         : Run <CMD>
1358 +)))
1256 1256  
1360 +(((
1257 1257  AT+<CMD>=<value> : Set the value
1362 +)))
1258 1258  
1364 +(((
1259 1259  AT+<CMD>=?       : Get the value
1366 +)))
1260 1260  
1368 +(((
1261 1261  ATZ: Trig a reset of the MCU
1370 +)))
1262 1262  
1372 +(((
1263 1263  AT+FDR: Reset Parameters to Factory Default, Keys Reserve 
1374 +)))
1264 1264  
1376 +(((
1265 1265  AT+DEUI: Get or Set the Device EUI
1378 +)))
1266 1266  
1380 +(((
1267 1267  AT+DADDR: Get or Set the Device Address
1382 +)))
1268 1268  
1384 +(((
1269 1269  AT+APPKEY: Get or Set the Application Key
1386 +)))
1270 1270  
1388 +(((
1271 1271  AT+NWKSKEY: Get or Set the Network Session Key
1390 +)))
1272 1272  
1392 +(((
1273 1273  AT+APPSKEY: Get or Set the Application Session Key
1394 +)))
1274 1274  
1396 +(((
1275 1275  AT+APPEUI: Get or Set the Application EUI
1398 +)))
1276 1276  
1400 +(((
1277 1277  AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1402 +)))
1278 1278  
1404 +(((
1279 1279  AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1406 +)))
1280 1280  
1408 +(((
1281 1281  AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1410 +)))
1282 1282  
1412 +(((
1283 1283  AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1414 +)))
1284 1284  
1416 +(((
1285 1285  AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1418 +)))
1286 1286  
1420 +(((
1287 1287  AT+RX2FQ: Get or Set the Rx2 window frequency
1422 +)))
1288 1288  
1424 +(((
1289 1289  AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1426 +)))
1290 1290  
1428 +(((
1291 1291  AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1430 +)))
1292 1292  
1432 +(((
1293 1293  AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1434 +)))
1294 1294  
1436 +(((
1295 1295  AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1438 +)))
1296 1296  
1440 +(((
1297 1297  AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1442 +)))
1298 1298  
1444 +(((
1299 1299  AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1446 +)))
1300 1300  
1448 +(((
1301 1301  AT+NWKID: Get or Set the Network ID
1450 +)))
1302 1302  
1452 +(((
1303 1303  AT+FCU: Get or Set the Frame Counter Uplink
1454 +)))
1304 1304  
1456 +(((
1305 1305  AT+FCD: Get or Set the Frame Counter Downlink
1458 +)))
1306 1306  
1460 +(((
1307 1307  AT+CLASS: Get or Set the Device Class
1462 +)))
1308 1308  
1464 +(((
1309 1309  AT+JOIN: Join network
1466 +)))
1310 1310  
1468 +(((
1311 1311  AT+NJS: Get OTAA Join Status
1470 +)))
1312 1312  
1472 +(((
1313 1313  AT+SENDB: Send hexadecimal data along with the application port
1474 +)))
1314 1314  
1476 +(((
1315 1315  AT+SEND: Send text data along with the application port
1478 +)))
1316 1316  
1480 +(((
1317 1317  AT+RECVB: Print last received data in binary format (with hexadecimal values)
1482 +)))
1318 1318  
1484 +(((
1319 1319  AT+RECV: Print last received data in raw format
1486 +)))
1320 1320  
1488 +(((
1321 1321  AT+VER: Get current image version and Frequency Band
1490 +)))
1322 1322  
1492 +(((
1323 1323  AT+CFM: Get or Set the confirmation mode (0-1)
1494 +)))
1324 1324  
1496 +(((
1325 1325  AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1498 +)))
1326 1326  
1500 +(((
1327 1327  AT+SNR: Get the SNR of the last received packet
1502 +)))
1328 1328  
1504 +(((
1329 1329  AT+RSSI: Get the RSSI of the last received packet
1506 +)))
1330 1330  
1508 +(((
1331 1331  AT+TDC: Get or set the application data transmission interval in ms
1510 +)))
1332 1332  
1512 +(((
1333 1333  AT+PORT: Get or set the application port
1514 +)))
1334 1334  
1516 +(((
1335 1335  AT+DISAT: Disable AT commands
1518 +)))
1336 1336  
1520 +(((
1337 1337  AT+PWORD: Set password, max 9 digits
1522 +)))
1338 1338  
1524 +(((
1339 1339  AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1526 +)))
1340 1340  
1528 +(((
1341 1341  AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1530 +)))
1342 1342  
1532 +(((
1343 1343  AT+CFG: Print all settings
1534 +)))
1344 1344  
1536 +== 4.2 Common AT Command Sequence ==
1345 1345  
1538 +=== 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1346 1346  
1347 -1.
1348 -11. Common AT Command Sequence
1349 -111. Multi-channel ABP mode (Use with SX1301/LG308)
1350 -
1540 +(((
1351 1351  If device has not joined network yet:
1542 +)))
1352 1352  
1353 -123456
1544 +(((
1545 +(% style="background-color:#dcdcdc" %)123456
1546 +)))
1354 1354  
1355 -AT+FDR
1548 +(((
1549 +(% style="background-color:#dcdcdc" %)AT+FDR
1550 +)))
1356 1356  
1357 -123456
1552 +(((
1553 +(% style="background-color:#dcdcdc" %)123456
1554 +)))
1358 1358  
1359 -AT+NJM=0
1556 +(((
1557 +(% style="background-color:#dcdcdc" %)AT+NJM=0
1558 +)))
1360 1360  
1361 -ATZ
1560 +(((
1561 +(% style="background-color:#dcdcdc" %)ATZ
1562 +)))
1362 1362  
1363 1363  
1565 +(((
1364 1364  If device already joined network:
1567 +)))
1365 1365  
1366 -AT+NJM=0
1569 +(((
1570 +(% style="background-color:#dcdcdc" %)AT+NJM=0
1571 +)))
1367 1367  
1368 -ATZ
1573 +(((
1574 +(% style="background-color:#dcdcdc" %)ATZ
1575 +)))
1369 1369  
1370 -1.
1371 -11.
1372 -111. Single-channel ABP mode (Use with LG01/LG02)
1577 +=== 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1373 1373  
1374 -123456   Enter Password to have AT access.
1579 +(((
1580 +(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1581 +)))
1375 1375  
1376 -AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1583 +(((
1584 +(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1585 +)))
1377 1377  
1378 -123456   Enter Password to have AT access.
1587 +(((
1588 +(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1589 +)))
1379 1379  
1380 -AT+CLASS=C Set to work in CLASS C
1591 +(((
1592 +(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1593 +)))
1381 1381  
1382 -AT+NJM=0 Set to ABP mode
1595 +(((
1596 +(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1597 +)))
1383 1383  
1384 -AT+ADR=0 Set the Adaptive Data Rate Off
1599 +(((
1600 +(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off
1601 +)))
1385 1385  
1386 -AT+DR=5  Set Data Rate
1603 +(((
1604 +(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1605 +)))
1387 1387  
1388 -AT+TDC=60000  Set transmit interval to 60 seconds
1607 +(((
1608 +(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1609 +)))
1389 1389  
1390 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1611 +(((
1612 +(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
1613 +)))
1391 1391  
1392 -AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1615 +(((
1616 +(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1617 +)))
1393 1393  
1394 -AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1619 +(((
1620 +(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1621 +)))
1395 1395  
1396 -AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1623 +(((
1624 +(% 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.
1625 +)))
1397 1397  
1398 -ATZ          Reset MCU
1627 +(((
1628 +(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1629 +)))
1399 1399  
1400 -**Note:**
1631 +(((
1632 +(% style="color:red" %)**Note:**
1633 +)))
1401 1401  
1402 -1. Make sure the device is set to ABP mode in the IoT Server.
1403 -1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1404 -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.
1405 -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
1635 +(((
1636 +(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1637 +2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1638 +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.
1639 +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
1640 +)))
1406 1406  
1407 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1642 +(((
1643 +[[image:1653359097980-169.png||height="188" width="729"]]
1644 +)))
1408 1408  
1646 +(((
1647 +
1648 +)))
1409 1409  
1410 -1.
1411 -11.
1412 -111. Change to Class A
1650 +=== 4.2.3 Change to Class A ===
1413 1413  
1414 1414  If sensor JOINED
1415 -
1416 -AT+CLASS=A
1417 -
1653 +(% style="background-color:#dcdcdc" %)AT+CLASS=A
1418 1418  ATZ
1419 1419  
1656 += 5. FAQ =
1420 1420  
1658 +== 5.1 How to upgrade the image? ==
1421 1421  
1422 -
1423 -
1424 -1. FAQ
1425 -
1426 -1.
1427 -11. How to upgrade the image?
1428 -
1429 1429  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1430 1430  
1431 1431  * Support new features
1432 1432  * For bug fix
1433 1433  * Change LoRaWAN bands.
1434 -
1435 1435  Below shows the hardware connection for how to upload an image to the LT:
1666 +* [[image:1653359603330-121.png]]
1436 1436  
1437 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1438 -
1439 -
1668 +(((
1440 1440  **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]].
1441 -
1442 1442  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1443 -
1444 1444  **Step3: **Open flashloader; choose the correct COM port to update.
1445 -
1446 -**For LT-33222-L**:
1447 -
1448 -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.
1449 -
1450 1450  **For LT-22222-L**:
1451 -
1452 1452  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.
1453 -
1454 -
1455 -
1456 -|(((
1457 -Board detected
1458 1458  )))
1459 1459  
1460 -|(((
1461 -
1462 -)))
1676 + [[image:image-20220524103407-12.png]]
1463 1463  
1464 -[[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]]
1678 +[[image:image-20220524103429-13.png]]
1465 1465  
1680 +[[image:image-20220524104033-15.png]]
1466 1466  
1682 +(% 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:
1467 1467  
1468 -[[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]]
1684 +[[image:1653360054704-518.png||height="186" width="745"]]
1469 1469  
1686 +(((
1687 +(((
1688 +== 5.2 How to change the LoRa Frequency Bands/Region? ==
1689 +)))
1690 +)))
1470 1470  
1471 -[[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]]
1692 +(((
1693 +User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1694 +)))
1472 1472  
1696 +(((
1697 +== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1698 +)))
1473 1473  
1474 -**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1475 -
1476 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1477 -
1478 -
1479 -1.
1480 -11. How to change the LoRa Frequency Bands/Region?
1481 -
1482 -User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1483 -
1484 -
1485 -1.
1486 -11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1487 -
1700 +(((
1701 +(((
1488 1488  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
1703 +)))
1704 +)))
1489 1489  
1706 +(((
1707 +(((
1490 1490  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1709 +)))
1710 +)))
1491 1491  
1712 +(((
1713 +(% 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.
1714 +)))
1492 1492  
1493 -**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.
1716 +(((
1717 +[[image:1653360231087-571.png||height="401" width="727"]]
1718 +)))
1494 1494  
1495 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]
1720 +(((
1721 +(% 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.
1722 +)))
1496 1496  
1497 -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.
1724 +(((
1725 +(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1726 +)))
1498 1498  
1728 +(((
1729 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1730 +(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1731 +(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1732 +(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1733 +(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1734 +(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1735 +(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1736 +(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1737 +(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1738 +(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1739 +)))
1499 1499  
1500 -**Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1741 +(((
1742 +As shown in below:
1743 +)))
1501 1501  
1502 -123456   Enter Password to have AT access.
1745 +[[image:1653360498588-932.png||height="485" width="726"]]
1503 1503  
1504 -AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1747 +== 5.4 Can I see counting event in Serial? ==
1505 1505  
1506 -123456   Enter Password to have AT access.
1749 +(((
1750 +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.
1751 +)))
1507 1507  
1508 -AT+NJM=0 Set to ABP mode
1753 +(((
1754 += 6. Trouble Shooting =
1755 +)))
1509 1509  
1510 -AT+ADR=0 Set the Adaptive Data Rate Off
1757 +(((
1758 +(((
1759 +== 6.1 Downlink doesn’t work, how to solve it? ==
1760 +)))
1761 +)))
1511 1511  
1512 -AT+DR=5  Set Data Rate (Set AT+DR=3 for 915 band)
1763 +(((
1764 +Please see this link for how to debug: [[see how it work>>LoRaWAN_Communication_Debug||anchor="H5.1Howitwork:NO"]]
1513 1513  
1514 -AT+TDC=60000  Set transmit interval to 60 seconds
1766 +[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H5.1Howitwork>>http://wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H5.1Howitwork]]
1515 1515  
1516 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1768 +
1769 +)))
1517 1517  
1518 -AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1
1771 +(((
1772 +== 6.2 Have trouble to upload image. ==
1773 +)))
1519 1519  
1520 -ATZ                Reset MCU
1775 +(((
1776 +See this link for trouble shooting:
1521 1521  
1522 -As shown in below:
1778 +[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/>>http://wiki1.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
1779 +)))
1523 1523  
1524 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]
1781 +(((
1782 +
1783 +)))
1525 1525  
1785 +(((
1786 +== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1787 +)))
1526 1526  
1789 +(((
1790 +It might be about the channels mapping. Please see this link for detail:
1527 1527  
1528 -1.
1529 -11. Can I see counting event in Serial?
1792 +[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H2.NoticeofUS9152FCN4702FAU915Frequencyband>>http://wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H2.NoticeofUS9152FCN4702FAU915Frequencyband]]
1793 +)))
1530 1530  
1531 -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.
1795 +(((
1796 +
1797 +)))
1532 1532  
1799 +(((
1800 += 7. Order Info =
1801 +)))
1533 1533  
1803 +(((
1804 +(((
1805 +(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1806 +)))
1807 +)))
1534 1534  
1809 +(((
1810 +(((
1811 +(% style="color:#4f81bd" %)**XXX:**
1812 +)))
1813 +)))
1535 1535  
1536 -1. Trouble Shooting     
1537 -11. Downlink doesn’t work, how to solve it?
1815 +(((
1816 +* (((
1817 +(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1818 +)))
1819 +)))
1538 1538  
1539 -Please see this link for how to debug:
1821 +(((
1822 +* (((
1823 +(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1824 +)))
1825 +)))
1540 1540  
1541 -[[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]]
1827 +(((
1828 +* (((
1829 +(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1830 +)))
1831 +)))
1542 1542  
1833 +(((
1834 +* (((
1835 +(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1836 +)))
1837 +)))
1543 1543  
1544 -1.
1545 -11. Have trouble to upload image.
1839 +(((
1840 +* (((
1841 +(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1842 +)))
1843 +)))
1546 1546  
1547 -See this link for trouble shooting:
1845 +(((
1846 +* (((
1847 +(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1848 +)))
1849 +)))
1548 1548  
1549 -[[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]]
1851 +(((
1852 +* (((
1853 +(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1854 +)))
1855 +)))
1550 1550  
1857 +(((
1858 +* (((
1859 +(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1860 +)))
1861 +)))
1551 1551  
1552 -1.
1553 -11. Why I can’t join TTN in US915 /AU915 bands?
1863 +(((
1864 +* (((
1865 +(% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1866 +)))
1554 1554  
1555 -It might be about the channels mapping. Please see this link for detail:
1868 += 8. Packing Info =
1869 +)))
1556 1556  
1557 -[[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]]
1558 -
1559 -
1560 -
1561 -
1562 -1. Order Info
1563 -
1564 -**For LT-33222-L-XXX or LT-22222-L-XXX:**
1565 -
1566 -**XXX:**
1567 -
1568 -* **EU433**: LT with frequency bands EU433
1569 -* **EU868**: LT with frequency bands EU868
1570 -* **KR920**: LT with frequency bands KR920
1571 -* **CN470**: LT with frequency bands CN470
1572 -* **AS923**: LT with frequency bands AS923
1573 -* **AU915**: LT with frequency bands AU915
1574 -* **US915**: LT with frequency bands US915
1575 -* **IN865**: LT with frequency bands IN865
1576 -* **CN779**: LT with frequency bands CN779
1577 -
1578 -1. Packing Info
1579 -
1871 +(((
1872 +(((
1580 1580  **Package Includes**:
1874 +)))
1875 +)))
1581 1581  
1582 -* LT I/O Controller x 1
1877 +(((
1878 +(((
1879 +* LT-22222-L I/O Controller x 1
1583 1583  * Stick Antenna for LoRa RF part x 1
1584 1584  * Bracket for controller x1
1585 1585  * Program cable x 1
1883 +)))
1884 +)))
1586 1586  
1886 +(((
1887 +(((
1587 1587  **Dimension and weight**:
1889 +)))
1890 +)))
1588 1588  
1892 +(((
1893 +(((
1589 1589  * Device Size: 13.5 x 7 x 3 cm
1590 1590  * Device Weight: 105g
1591 1591  * Package Size / pcs : 14.5 x 8 x 5 cm
1592 1592  * Weight / pcs : 170g
1898 +)))
1899 +)))
1593 1593  
1594 -1. Support
1901 +(((
1902 += 9. Support =
1903 +)))
1595 1595  
1596 -* 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.
1597 -* 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
1905 +* (((
1906 +(((
1907 +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.
1908 +)))
1909 +)))
1910 +* (((
1911 +(((
1912 +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
1913 +)))
1914 +)))
1598 1598  
1599 -[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1916 +(((
1917 +(((
1918 + [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1919 +)))
1920 +
1921 +(((
1922 += 10. Reference​​​​​ =
1923 +
1924 +* Product Page:
1925 +
1926 +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]]
1927 +
1928 +* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1929 +* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1930 +* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
1931 +)))
1932 +)))
1653357170703-587.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +34.0 KB
Content
1653357531600-905.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +25.4 KB
Content
1653357592296-182.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +42.2 KB
Content
1653357640609-758.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +558.1 KB
Content
1653357648330-671.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +35.9 KB
Content
1653358238933-385.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +412.4 KB
Content
1653358355238-883.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +120.4 KB
Content
1653359097980-169.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +158.9 KB
Content
1653359603330-121.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +598.0 KB
Content
1653360054704-518.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +84.7 KB
Content
1653360231087-571.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +94.8 KB
Content
1653360498588-932.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +93.9 KB
Content
image-20220524095400-6.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +172 bytes
Content
image-20220524095438-7.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +158 bytes
Content
image-20220524095628-8.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +264 bytes
Content
image-20220524100215-10.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +21.5 KB
Content
image-20220524100215-9.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +72.1 KB
Content
image-20220524100748-11.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +39.5 KB
Content
image-20220524103407-12.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +66.5 KB
Content
image-20220524103429-13.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +127.2 KB
Content
image-20220524103652-14.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +88.6 KB
Content
image-20220524104033-15.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +83.7 KB
Content