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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 68.18
edited by Xiaoling
on 2022/05/25 15:23
Change comment: There is no comment for this version
To version 66.19
edited by Xiaoling
on 2022/05/24 13:51
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -41,122 +41,48 @@
41 41  
42 42  (((
43 43  [[image:1653295757274-912.png]]
44 -
45 -
46 46  )))
47 47  
48 48  == 1.2  Specifications ==
49 49  
50 -(((
51 51  **Hardware System:**
52 -)))
53 53  
54 -* (((
55 -STM32L072CZT6 MCU
56 -)))
57 -* (((
58 -SX1276/78 Wireless Chip 
59 -)))
60 -* (((
61 -(((
62 -Power Consumption:
63 -)))
50 +* STM32L072CZT6 MCU
51 +* SX1276/78 Wireless Chip 
52 +* Power Consumption:
53 +** Idle: 4mA@12v
54 +** 20dB Transmit: 34mA@12v
64 64  
65 -* (((
66 -Idle: 4mA@12v
67 -)))
68 -* (((
69 -20dB Transmit: 34mA@12v
70 -)))
71 -)))
72 -
73 -(((
74 74  **Interface for Model: LT22222-L:**
75 -)))
76 76  
77 -* (((
78 -2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
79 -)))
80 -* (((
81 -2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
82 -)))
83 -* (((
84 -2 x Relay Output (5A@250VAC / 30VDC)
85 -)))
86 -* (((
87 -2 x 0~~20mA Analog Input (res:0.01mA)
88 -)))
89 -* (((
90 -2 x 0~~30V Analog Input (res:0.01v)
91 -)))
92 -* (((
93 -Power Input 7~~ 24V DC. 
94 -)))
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. 
95 95  
96 -(((
97 97  **LoRa Spec:**
98 -)))
99 99  
100 -* (((
101 -(((
102 -Frequency Range:
103 -)))
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.
104 104  
105 -* (((
106 -Band 1 (HF): 862 ~~ 1020 Mhz
107 -)))
108 -* (((
109 -Band 2 (LF): 410 ~~ 528 Mhz
110 -)))
111 -)))
112 -* (((
113 -168 dB maximum link budget.
114 -)))
115 -* (((
116 -+20 dBm - 100 mW constant RF output vs.
117 -)))
118 -* (((
119 -+14 dBm high efficiency PA.
120 -)))
121 -* (((
122 -Programmable bit rate up to 300 kbps.
123 -)))
124 -* (((
125 -High sensitivity: down to -148 dBm.
126 -)))
127 -* (((
128 -Bullet-proof front end: IIP3 = -12.5 dBm.
129 -)))
130 -* (((
131 -Excellent blocking immunity.
132 -)))
133 -* (((
134 -Low RX current of 10.3 mA, 200 nA register retention.
135 -)))
136 -* (((
137 -Fully integrated synthesizer with a resolution of 61 Hz.
138 -)))
139 -* (((
140 -FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
141 -)))
142 -* (((
143 -Built-in bit synchronizer for clock recovery.
144 -)))
145 -* (((
146 -Preamble detection.
147 -)))
148 -* (((
149 -127 dB Dynamic Range RSSI.
150 -)))
151 -* (((
152 -Automatic RF Sense and CAD with ultra-fast AFC.
153 -)))
154 -* (((
155 -Packet engine up to 256 bytes with CRC.
156 -
157 -
158 -)))
159 -
160 160  == 1.3 Features ==
161 161  
162 162  * LoRaWAN Class A & Class C protocol
... ... @@ -167,7 +167,6 @@
167 167  * Firmware upgradable via program port
168 168  * Counting
169 169  
170 -
171 171  == 1.4  Applications ==
172 172  
173 173  * Smart Buildings & Home Automation
... ... @@ -177,7 +177,6 @@
177 177  * Smart Cities
178 178  * Smart Factory
179 179  
180 -
181 181  == 1.5 Hardware Variants ==
182 182  
183 183  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -191,8 +191,6 @@
191 191  * 1 x Counting Port
192 192  )))
193 193  
194 -
195 -
196 196  = 2. Power ON Device =
197 197  
198 198  The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
... ... @@ -203,29 +203,21 @@
203 203  
204 204  [[image:1653297104069-180.png]]
205 205  
206 -
207 207  = 3. Operation Mode =
208 208  
209 209  == 3.1 How it works? ==
210 210  
211 -(((
212 212  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. 
213 -)))
214 214  
215 -(((
216 -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.
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: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.
217 217  
218 -
219 -)))
136 +3.2 Example to join LoRaWAN network
220 220  
221 -== 3.2 Example to join LoRaWAN network ==
222 -
223 -(((
224 224  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. 
225 -)))
226 226  
227 227  [[image:image-20220523172350-1.png||height="266" width="864"]]
228 228  
142 +
229 229  (((
230 230  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:
231 231  )))
... ... @@ -246,12 +246,10 @@
246 246  
247 247  [[image:1653297955910-247.png||height="321" width="716"]]
248 248  
249 -
250 250  Add APP KEY and DEV EUI
251 251  
252 252  [[image:1653298023685-319.png]]
253 253  
254 -
255 255  (((
256 256  **Step 2**: Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
257 257  )))
... ... @@ -258,7 +258,6 @@
258 258  
259 259  [[image:1653298044601-602.png||height="405" width="709"]]
260 260  
261 -
262 262  == 3.3 Uplink Payload ==
263 263  
264 264  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -270,7 +270,6 @@
270 270  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
271 271  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
272 272  
273 -
274 274  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
275 275  
276 276  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -325,9 +325,7 @@
325 325  
326 326  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
327 327  
328 -(((
329 329  Total : 11 bytes payload
330 -)))
331 331  
332 332  [[image:image-20220523180452-3.png]]
333 333  
... ... @@ -341,77 +341,53 @@
341 341  * FIRST: Indicate this is the first packet after join network.
342 342  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
343 343  
344 -(((
345 345  (% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
346 -)))
347 347  
348 -(((
349 349  **To use counting mode, please run:**
350 -)))
351 351  
352 352  (% class="box infomessage" %)
353 353  (((
354 -(((
355 355  **AT+MOD=2**
356 356  )))
357 -)))
358 358  
359 359  (% class="box infomessage" %)
360 360  (((
361 -(((
362 362  **ATZ**
363 363  )))
364 -)))
365 365  
366 -(((
367 367  (% style="color:#4f81bd" %)**AT Commands for counting:**
368 -)))
369 369  
370 -(((
371 371  **For LT22222-L:**
372 -)))
373 373  
374 374  (% class="box infomessage" %)
375 375  (((
376 -(((
377 377  **AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
378 378  )))
379 -)))
380 380  
381 381  (% class="box infomessage" %)
382 382  (((
383 -(((
384 384  **AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
385 385  )))
386 -)))
387 387  
388 388  (% class="box infomessage" %)
389 389  (((
390 -(((
391 391  **AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
392 392  )))
393 -)))
394 394  
395 395  (% class="box infomessage" %)
396 396  (((
397 -(((
398 398  **AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
399 399  )))
400 -)))
401 401  
402 402  (% class="box infomessage" %)
403 403  (((
404 -(((
405 405  **AT+SETCNT=1,60   (Set COUNT1 value to 60)**
406 406  )))
407 -)))
408 408  
409 409  (% class="box infomessage" %)
410 410  (((
411 -(((
412 412  **AT+SETCNT=2,60   (Set COUNT2 value to 60)**
413 413  )))
414 -)))
415 415  
416 416  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
417 417  
... ... @@ -429,31 +429,21 @@
429 429  * FIRST: Indicate this is the first packet after join network.
430 430  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
431 431  
432 -(((
433 433  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
434 -)))
435 435  
436 -(((
437 437  **To use counting mode, please run:**
438 -)))
439 439  
440 440  (% class="box infomessage" %)
441 441  (((
442 -(((
443 443  **AT+MOD=3**
444 444  )))
445 -)))
446 446  
447 447  (% class="box infomessage" %)
448 448  (((
449 -(((
450 450  **ATZ**
451 451  )))
452 -)))
453 453  
454 -(((
455 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
456 -)))
330 +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]].
457 457  
458 458  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
459 459  
... ... @@ -473,67 +473,44 @@
473 473  * FIRST: Indicate this is the first packet after join network.
474 474  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
475 475  
476 -(((
477 477  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
478 -)))
479 479  
480 -(((
481 481  **To use this mode, please run:**
482 -)))
483 483  
484 484  (% class="box infomessage" %)
485 485  (((
486 -(((
487 487  **AT+MOD=4**
488 488  )))
489 -)))
490 490  
491 491  (% class="box infomessage" %)
492 492  (((
493 -(((
494 494  **ATZ**
495 495  )))
496 -)))
497 497  
498 -(((
499 -
500 -)))
501 501  
502 -(((
503 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
504 -)))
365 +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]].
505 505  
506 -(((
507 507  **Plus below command for AVI1 Counting:**
508 -)))
509 509  
510 510  (% class="box infomessage" %)
511 511  (((
512 -(((
513 513  **AT+SETCNT=3,60   (set AVI Count to 60)**
514 514  )))
515 -)))
516 516  
517 517  (% class="box infomessage" %)
518 518  (((
519 -(((
520 520  **AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
521 521  )))
522 -)))
523 523  
524 524  (% class="box infomessage" %)
525 525  (((
526 -(((
527 527  **AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
528 528  )))
529 -)))
530 530  
531 531  (% class="box infomessage" %)
532 532  (((
533 -(((
534 534  **AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
535 535  )))
536 -)))
537 537  
538 538  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
539 539  
... ... @@ -547,35 +547,23 @@
547 547  
548 548  * RO is for relay. ROx=1 : close，ROx=0 always open.
549 549  * FIRST: Indicate this is the first packet after join network.
550 -* (((
551 -DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
552 -)))
401 +* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
553 553  
554 -(((
555 555  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
556 -)))
557 557  
558 -(((
559 559  **To use this mode, please run:**
560 -)))
561 561  
562 562  (% class="box infomessage" %)
563 563  (((
564 -(((
565 565  **AT+MOD=5**
566 566  )))
567 -)))
568 568  
569 569  (% class="box infomessage" %)
570 570  (((
571 -(((
572 572  **ATZ**
573 573  )))
574 -)))
575 575  
576 -(((
577 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
578 -)))
417 +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]].
579 579  
580 580  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
581 581  
... ... @@ -717,7 +717,7 @@
717 717  
718 718  === 3.4.1 Common Commands ===
719 719  
720 -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>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
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/]]
721 721  
722 722  === 3.4.2 Sensor related commands ===
723 723  
... ... @@ -983,10 +983,8 @@
983 983  
984 984  (% class="box infomessage" %)
985 985  (((
986 -(((
987 987  **0xA9 aa bb cc     ~/~/ Set DO1/DO2/DO3 output with time control**
988 988  )))
989 -)))
990 990  
991 991  This is to control the digital output time of DO pin. Include four bytes:
992 992  
... ... @@ -1189,26 +1189,21 @@
1189 1189  **0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,**
1190 1190  )))
1191 1191  
1192 -(((
1193 1193  range: aa bb cc:0 to 16777215,  (unit:second)
1194 -)))
1195 1195  
1196 1196  == 3.5 Integrate with Mydevice ==
1197 1197  
1198 1198  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:
1199 1199  
1200 -(((
1201 1201  **Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1202 -)))
1203 1203  
1204 -(((
1205 1205  **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:
1206 -)))
1207 1207  
1208 1208  [[image:1653356737703-362.png||height="232" width="732"]]
1209 1209  
1210 1210  [[image:image-20220524094641-11.png||height="390" width="723"]]
1211 1211  
1043 +
1212 1212  [[image:image-20220524094641-12.png||height="402" width="718"]]
1213 1213  
1214 1214  **Step 3**: Create an account or log in Mydevices.
... ... @@ -1267,7 +1267,7 @@
1267 1267  
1268 1268  So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1269 1269  
1270 -[[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.**
1102 + //IF// = DI1+ / 1K.
1271 1271  
1272 1272  If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1273 1273  
... ... @@ -1281,9 +1281,9 @@
1281 1281  
1282 1282  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1283 1283  
1284 -[[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.**
1116 +[[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.**
1285 1285  
1286 -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:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1118 +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:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1287 1287  
1288 1288  
1289 1289  **Example3**: Connect to a 220v high active sensor.
... ... @@ -1295,7 +1295,7 @@
1295 1295  
1296 1296  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1297 1297  
1298 - [[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.**
1130 + [[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.**
1299 1299  
1300 1300  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.
1301 1301  
... ... @@ -1354,15 +1354,11 @@
1354 1354  
1355 1355  [[image:1653358238933-385.png]]
1356 1356  
1357 -(((
1358 1358  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:
1359 -)))
1360 1360  
1361 1361  [[image:1653358355238-883.png]]
1362 1362  
1363 -(((
1364 1364  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/]]
1365 -)))
1366 1366  
1367 1367  (((
1368 1368  AT+<CMD>?        : Help on <CMD>
... ... @@ -1680,13 +1680,11 @@
1680 1680  Below shows the hardware connection for how to upload an image to the LT:
1681 1681  * [[image:1653359603330-121.png]]
1682 1682  
1683 -(((
1684 1684  **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]].
1685 1685  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1686 1686  **Step3: **Open flashloader; choose the correct COM port to update.
1687 1687  **For LT-22222-L**:
1688 1688  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.
1689 -)))
1690 1690  
1691 1691   [[image:image-20220524103407-12.png]]
1692 1692  
... ... @@ -1705,7 +1705,7 @@
1705 1705  )))
1706 1706  
1707 1707  (((
1708 -User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1534 +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.
1709 1709  )))
1710 1710  
1711 1711  (((
... ... @@ -1732,15 +1732,10 @@
1732 1732  [[image:1653360231087-571.png||height="401" width="727"]]
1733 1733  )))
1734 1734  
1735 -(((
1736 1736  (% 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.
1737 -)))
1738 1738  
1739 -(((
1740 1740  (% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1741 -)))
1742 1742  
1743 -(((
1744 1744  (% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1745 1745  (% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1746 1746  (% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
... ... @@ -1751,11 +1751,8 @@
1751 1751  (% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1752 1752  (% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1753 1753  (% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1754 -)))
1755 1755  
1756 -(((
1757 1757  As shown in below:
1758 -)))
1759 1759  
1760 1760  [[image:1653360498588-932.png||height="485" width="726"]]
1761 1761  
... ... @@ -1766,7 +1766,7 @@
1766 1766  )))
1767 1767  
1768 1768  (((
1769 -= 6. Trouble Shooting =
1587 += 6. Trouble Shooting  =
1770 1770  )))
1771 1771  
1772 1772  (((
... ... @@ -1776,11 +1776,13 @@
1776 1776  )))
1777 1777  
1778 1778  (((
1779 -Please see this link for how to debug:
1597 +Please see this link for how to debug:
1780 1780  
1781 -[[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]]
1599 +[[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/]]
1600 +)))
1782 1782  
1783 -
1602 +(((
1603 +[[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]]
1784 1784  )))
1785 1785  
1786 1786  (((
... ... @@ -1789,12 +1789,10 @@
1789 1789  
1790 1790  (((
1791 1791  See this link for trouble shooting:
1792 -
1793 -[[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/]]
1794 1794  )))
1795 1795  
1796 1796  (((
1797 -
1615 +[[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]]
1798 1798  )))
1799 1799  
1800 1800  (((
... ... @@ -1803,12 +1803,10 @@
1803 1803  
1804 1804  (((
1805 1805  It might be about the channels mapping. Please see this link for detail:
1806 -
1807 -[[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]]
1808 1808  )))
1809 1809  
1810 1810  (((
1811 -
1627 +[[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]]
1812 1812  )))
1813 1813  
1814 1814  (((
... ... @@ -1827,58 +1827,33 @@
1827 1827  )))
1828 1828  )))
1829 1829  
1830 -(((
1831 1831  * (((
1832 1832  (% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1833 1833  )))
1834 -)))
1835 -
1836 -(((
1837 1837  * (((
1838 1838  (% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1839 1839  )))
1840 -)))
1841 -
1842 -(((
1843 1843  * (((
1844 1844  (% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1845 1845  )))
1846 -)))
1847 -
1848 -(((
1849 1849  * (((
1850 1850  (% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1851 1851  )))
1852 -)))
1853 -
1854 -(((
1855 1855  * (((
1856 1856  (% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1857 1857  )))
1858 -)))
1859 -
1860 -(((
1861 1861  * (((
1862 1862  (% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1863 1863  )))
1864 -)))
1865 -
1866 -(((
1867 1867  * (((
1868 1868  (% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1869 1869  )))
1870 -)))
1871 -
1872 -(((
1873 1873  * (((
1874 1874  (% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1875 1875  )))
1876 -)))
1877 1877  
1878 1878  (((
1879 -* (((
1880 -(% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1881 -)))
1672 +* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1882 1882  
1883 1883  = 8. Packing Info =
1884 1884  )))