Skip to Content
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 61.1
edited by Xiaoling
on 2022/05/24 10:34
Change comment: Uploaded new attachment "image-20220524103429-13.png", version {1}

Summary

Details

Page properties
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:#AT_Command]] 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:#COUNT_COMMAND]].
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:#COUNT_COMMAND]].
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:#COUNT_COMMAND]].
579 579  
580 580  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
581 581  
... ... @@ -624,7 +624,7 @@
624 624  
625 625  **Downlink Command to set Trigger Condition**
626 626  
627 -Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
466 +Type Code: 0xAA. Downlink command same as AT Command [[AT+AVLIM, AT+ACLIM>>path:#AT_Trigger]]
628 628  
629 629  Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
630 630  
... ... @@ -644,7 +644,7 @@
644 644  
645 645  Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
646 646  
647 -**Example2**: AA 02 01 00
486 +Example2: AA 02 01 00
648 648  
649 649  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
650 650  
... ... @@ -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  
... ... @@ -1189,29 +1189,24 @@
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 -**Step 3**: Create an account or log in Mydevices.
1046 +**Step **3: Create an account or log in Mydevices.
1215 1215  
1216 1216  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1217 1217  
... ... @@ -1221,6 +1221,7 @@
1221 1221  
1222 1222  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1223 1223  
1056 +
1224 1224  [[image:image-20220524094909-1.png||height="335" width="729"]]
1225 1225  
1226 1226  [[image:image-20220524094909-2.png||height="337" width="729"]]
... ... @@ -1231,6 +1231,10 @@
1231 1231  
1232 1232  [[image:image-20220524094909-5.png||height="341" width="734"]]
1233 1233  
1067 +
1068 +
1069 +
1070 +
1234 1234  == 3.6 Interface Detail ==
1235 1235  
1236 1236  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1246,10 +1246,8 @@
1246 1246  )))
1247 1247  
1248 1248  (((
1249 -(((
1250 1250  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
1251 1251  )))
1252 -)))
1253 1253  
1254 1254  [[image:1653357170703-587.png]]
1255 1255  
... ... @@ -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.**
1105 + //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.**
1119 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/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.**
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.
1121 +If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]][[image:/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.
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.**
1133 + [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/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.**
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>
... ... @@ -1669,128 +1669,153 @@
1669 1669  ATZ
1670 1670  
1671 1671  = 5. FAQ =
1672 -
1673 1673  == 5.1 How to upgrade the image? ==
1674 -
1675 1675  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1676 1676  
1506 +
1677 1677  * Support new features
1678 1678  * For bug fix
1679 1679  * Change LoRaWAN bands.
1680 1680  Below shows the hardware connection for how to upload an image to the LT:
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 - [[image:image-20220524103407-12.png]]
1518 +[[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]]
1692 1692  
1693 -[[image:image-20220524103429-13.png]]
1520 +(% 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:
1694 1694  
1695 -[[image:image-20220524104033-15.png]]
1696 1696  
1697 -(% 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:
1523 +1. (((
1524 +(((
1525 +
1526 +)))
1698 1698  
1699 -[[image:1653360054704-518.png||height="186" width="745"]]
1528 +1. (((
1529 +How to change the LoRa Frequency Bands/Region?
1530 +)))
1531 +)))
1700 1700  
1701 1701  (((
1534 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1535 +)))
1536 +
1702 1702  (((
1703 -== 5.2 How to change the LoRa Frequency Bands/Region? ==
1538 +
1704 1704  )))
1540 +
1541 +1.
1542 +11. (((
1543 +How to set up LT to work with Single Channel Gateway such as LG01/LG02?
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.
1547 +In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
1709 1709  )))
1710 1710  
1711 1711  (((
1712 -== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1551 +Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1713 1713  )))
1714 1714  
1715 1715  (((
1555 +
1556 +)))
1557 +
1716 1716  (((
1717 -In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
1559 +**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.
1718 1718  )))
1561 +
1562 +(((
1563 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]
1719 1719  )))
1720 1720  
1721 1721  (((
1567 +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.
1568 +)))
1569 +
1722 1722  (((
1723 -Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1571 +
1724 1724  )))
1573 +
1574 +(((
1575 +**Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1725 1725  )))
1726 1726  
1727 1727  (((
1728 -(% 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.
1579 +123456   Enter Password to have AT access.
1729 1729  )))
1730 1730  
1731 1731  (((
1732 -[[image:1653360231087-571.png||height="401" width="727"]]
1583 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1733 1733  )))
1734 1734  
1735 1735  (((
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.
1587 +123456   Enter Password to have AT access.
1737 1737  )))
1738 1738  
1739 1739  (((
1740 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1591 +AT+NJM=0 Set to ABP mode
1741 1741  )))
1742 1742  
1743 1743  (((
1744 -(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1745 -(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1746 -(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1747 -(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1748 -(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1749 -(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1750 -(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1751 -(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1752 -(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1753 -(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1595 +AT+ADR=0 Set the Adaptive Data Rate Off
1754 1754  )))
1755 1755  
1756 1756  (((
1757 -As shown in below:
1599 +AT+DR=5  Set Data Rate (Set AT+DR=3 for 915 band)
1758 1758  )))
1759 1759  
1760 -[[image:1653360498588-932.png||height="485" width="726"]]
1602 +(((
1603 +AT+TDC=60000  Set transmit interval to 60 seconds
1604 +)))
1761 1761  
1762 -== 5.4 Can I see counting event in Serial? ==
1606 +(((
1607 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1608 +)))
1763 1763  
1764 1764  (((
1765 -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.
1611 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1
1766 1766  )))
1767 1767  
1768 1768  (((
1769 -= 6. Trouble Shooting =
1615 +ATZ                Reset MCU
1770 1770  )))
1771 1771  
1772 1772  (((
1619 +As shown in below:
1620 +)))
1621 +
1773 1773  (((
1774 -== 6.1 Downlink doesn’t work, how to solve it? ==
1623 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]
1775 1775  )))
1776 -)))
1777 1777  
1778 1778  (((
1779 -Please see this link for how to debug:
1627 +
1628 +)))
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]]
1782 -
1630 +(((
1783 1783  
1784 1784  )))
1785 1785  
1634 +1. (((
1786 1786  (((
1787 -== 6.2 Have trouble to upload image. ==
1636 +
1788 1788  )))
1789 1789  
1639 +1. (((
1640 +Can I see counting event in Serial?
1641 +)))
1642 +)))
1643 +
1790 1790  (((
1791 -See this link for trouble shooting:
1645 +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.
1646 +)))
1792 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/]]
1648 +(((
1649 +
1794 1794  )))
1795 1795  
1796 1796  (((
... ... @@ -1798,150 +1798,162 @@
1798 1798  )))
1799 1799  
1800 1800  (((
1801 -== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1657 +
1802 1802  )))
1803 1803  
1660 +1. (((
1804 1804  (((
1805 -It might be about the channels mapping. Please see this link for detail:
1662 +Trouble Shooting    
1663 +)))
1806 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]]
1665 +1. (((
1666 +Downlink doesn’t work, how to solve it?
1808 1808  )))
1668 +)))
1809 1809  
1810 1810  (((
1811 -
1671 +Please see this link for how to debug:
1812 1812  )))
1813 1813  
1814 1814  (((
1815 -= 7. Order Info =
1675 +[[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]]
1816 1816  )))
1817 1817  
1818 1818  (((
1819 -(((
1820 -(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1679 +
1821 1821  )))
1681 +
1682 +1.
1683 +11. (((
1684 +Have trouble to upload image.
1822 1822  )))
1823 1823  
1824 1824  (((
1688 +See this link for trouble shooting:
1689 +)))
1690 +
1825 1825  (((
1826 -(% style="color:#4f81bd" %)**XXX:**
1692 +[[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]]
1827 1827  )))
1828 -)))
1829 1829  
1830 1830  (((
1831 -* (((
1832 -(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1696 +
1833 1833  )))
1698 +
1699 +1.
1700 +11. (((
1701 +Why I can’t join TTN in US915 /AU915 bands?
1834 1834  )))
1835 1835  
1836 1836  (((
1837 -* (((
1838 -(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1705 +It might be about the channels mapping. Please see this link for detail:
1839 1839  )))
1707 +
1708 +(((
1709 +[[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]]
1840 1840  )))
1841 1841  
1842 1842  (((
1843 -* (((
1844 -(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1713 +
1845 1845  )))
1715 +
1716 +(((
1717 +
1846 1846  )))
1847 1847  
1848 1848  (((
1849 -* (((
1850 -(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1721 +
1851 1851  )))
1723 +
1724 +1. (((
1725 +Order Info
1852 1852  )))
1853 1853  
1854 1854  (((
1855 -* (((
1856 -(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1729 +**For LT-33222-L-XXX or LT-22222-L-XXX:**
1857 1857  )))
1858 -)))
1859 1859  
1860 1860  (((
1733 +**XXX:**
1734 +)))
1735 +
1861 1861  * (((
1862 -(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1737 +**EU433**: LT with frequency bands EU433
1863 1863  )))
1739 +* (((
1740 +**EU868**: LT with frequency bands EU868
1864 1864  )))
1865 -
1866 -(((
1867 1867  * (((
1868 -(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1743 +**KR920**: LT with frequency bands KR920
1869 1869  )))
1745 +* (((
1746 +**CN470**: LT with frequency bands CN470
1870 1870  )))
1871 -
1872 -(((
1873 1873  * (((
1874 -(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1749 +**AS923**: LT with frequency bands AS923
1875 1875  )))
1751 +* (((
1752 +**AU915**: LT with frequency bands AU915
1876 1876  )))
1877 -
1878 -(((
1879 1879  * (((
1880 -(% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1755 +**US915**: LT with frequency bands US915
1881 1881  )))
1757 +* (((
1758 +**IN865**: LT with frequency bands IN865
1759 +)))
1760 +* (((
1761 +**CN779**: LT with frequency bands CN779
1762 +)))
1882 1882  
1883 -= 8. Packing Info =
1764 +1. (((
1765 +Packing Info
1884 1884  )))
1885 1885  
1886 1886  (((
1887 -(((
1888 1888  **Package Includes**:
1889 1889  )))
1890 -)))
1891 1891  
1892 -(((
1893 -(((
1894 -* LT-22222-L I/O Controller x 1
1895 -* Stick Antenna for LoRa RF part x 1
1896 -* Bracket for controller x1
1897 -* Program cable x 1
1772 +* (((
1773 +LT I/O Controller x 1
1898 1898  )))
1775 +* (((
1776 +Stick Antenna for LoRa RF part x 1
1899 1899  )))
1778 +* (((
1779 +Bracket for controller x1
1780 +)))
1781 +* (((
1782 +Program cable x 1
1783 +)))
1900 1900  
1901 1901  (((
1902 -(((
1903 1903  **Dimension and weight**:
1904 1904  )))
1905 -)))
1906 1906  
1907 -(((
1908 -(((
1909 -* Device Size: 13.5 x 7 x 3 cm
1910 -* Device Weight: 105g
1911 -* Package Size / pcs : 14.5 x 8 x 5 cm
1912 -* Weight / pcs : 170g
1789 +* (((
1790 +Device Size: 13.5 x 7 x 3 cm
1913 1913  )))
1792 +* (((
1793 +Device Weight: 105g
1914 1914  )))
1795 +* (((
1796 +Package Size / pcs : 14.5 x 8 x 5 cm
1797 +)))
1798 +* (((
1799 +Weight / pcs : 170g
1800 +)))
1915 1915  
1916 -(((
1917 -= 9. Support =
1802 +1. (((
1803 +Support
1918 1918  )))
1919 1919  
1920 1920  * (((
1921 -(((
1922 1922  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.
1923 1923  )))
1924 -)))
1925 1925  * (((
1926 -(((
1927 1927  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
1928 1928  )))
1929 -)))
1930 1930  
1931 1931  (((
1932 -(((
1933 - [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1814 +[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1934 1934  )))
1935 -
1936 -(((
1937 -= 10. Reference​​​​​ =
1938 -
1939 -* Product Page:
1940 -
1941 -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]]
1942 -
1943 -* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1944 -* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1945 -* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
1946 -)))
1947 -)))
1653360054704-518.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -84.7 KB
Content
1653360231087-571.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -94.8 KB
Content
1653360498588-932.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -93.9 KB
Content
image-20220524103652-14.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -88.6 KB
Content
image-20220524104033-15.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -83.7 KB
Content