Skip to Content
Last modified by Mengting Qiu on 2025/06/04 18:42
From version 66.31
edited by Xiaoling
on 2022/05/24 14:14
Change comment: There is no comment for this version
To version 58.1
edited by Xiaoling
on 2022/05/24 10:24
Change comment: Uploaded new attachment "1653359097980-169.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -45,114 +45,44 @@
45 45  
46 46  == 1.2  Specifications ==
47 47  
48 -(((
49 49  **Hardware System:**
50 -)))
51 51  
52 -* (((
53 -STM32L072CZT6 MCU
54 -)))
55 -* (((
56 -SX1276/78 Wireless Chip 
57 -)))
58 -* (((
59 -(((
60 -Power Consumption:
61 -)))
50 +* STM32L072CZT6 MCU
51 +* SX1276/78 Wireless Chip 
52 +* Power Consumption:
53 +** Idle: 4mA@12v
54 +** 20dB Transmit: 34mA@12v
62 62  
63 -* (((
64 -Idle: 4mA@12v
65 -)))
66 -* (((
67 -20dB Transmit: 34mA@12v
68 -)))
69 -)))
70 -
71 -(((
72 72  **Interface for Model: LT22222-L:**
73 -)))
74 74  
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 -)))
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. 
93 93  
94 -(((
95 95  **LoRa Spec:**
96 -)))
97 97  
98 -* (((
99 -(((
100 -Frequency Range:
101 -)))
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.
102 102  
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 -
156 156  == 1.3 Features ==
157 157  
158 158  * LoRaWAN Class A & Class C protocol
... ... @@ -199,22 +199,17 @@
199 199  
200 200  == 3.1 How it works? ==
201 201  
202 -(((
203 203  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 -)))
205 205  
206 -(((
207 -In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>path:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H4.UseATCommand]] to set the keys in the devices.
208 -)))
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.
209 209  
210 -== 3.2 Example to join LoRaWAN network ==
136 +3.2 Example to join LoRaWAN network
211 211  
212 -(((
213 213  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 -)))
215 215  
216 216  [[image:image-20220523172350-1.png||height="266" width="864"]]
217 217  
142 +
218 218  (((
219 219  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:
220 220  )))
... ... @@ -310,9 +310,7 @@
310 310  
311 311  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
312 312  
313 -(((
314 314  Total : 11 bytes payload
315 -)))
316 316  
317 317  [[image:image-20220523180452-3.png]]
318 318  
... ... @@ -326,77 +326,53 @@
326 326  * FIRST: Indicate this is the first packet after join network.
327 327  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
328 328  
329 -(((
330 330  (% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
331 -)))
332 332  
333 -(((
334 334  **To use counting mode, please run:**
335 -)))
336 336  
337 337  (% class="box infomessage" %)
338 338  (((
339 -(((
340 340  **AT+MOD=2**
341 341  )))
342 -)))
343 343  
344 344  (% class="box infomessage" %)
345 345  (((
346 -(((
347 347  **ATZ**
348 348  )))
349 -)))
350 350  
351 -(((
352 352  (% style="color:#4f81bd" %)**AT Commands for counting:**
353 -)))
354 354  
355 -(((
356 356  **For LT22222-L:**
357 -)))
358 358  
359 359  (% class="box infomessage" %)
360 360  (((
361 -(((
362 362  **AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
363 363  )))
364 -)))
365 365  
366 366  (% class="box infomessage" %)
367 367  (((
368 -(((
369 369  **AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
370 370  )))
371 -)))
372 372  
373 373  (% class="box infomessage" %)
374 374  (((
375 -(((
376 376  **AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
377 377  )))
378 -)))
379 379  
380 380  (% class="box infomessage" %)
381 381  (((
382 -(((
383 383  **AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
384 384  )))
385 -)))
386 386  
387 387  (% class="box infomessage" %)
388 388  (((
389 -(((
390 390  **AT+SETCNT=1,60   (Set COUNT1 value to 60)**
391 391  )))
392 -)))
393 393  
394 394  (% class="box infomessage" %)
395 395  (((
396 -(((
397 397  **AT+SETCNT=2,60   (Set COUNT2 value to 60)**
398 398  )))
399 -)))
400 400  
401 401  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
402 402  
... ... @@ -414,31 +414,21 @@
414 414  * FIRST: Indicate this is the first packet after join network.
415 415  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
416 416  
417 -(((
418 418  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
419 -)))
420 420  
421 -(((
422 422  **To use counting mode, please run:**
423 -)))
424 424  
425 425  (% class="box infomessage" %)
426 426  (((
427 -(((
428 428  **AT+MOD=3**
429 429  )))
430 -)))
431 431  
432 432  (% class="box infomessage" %)
433 433  (((
434 -(((
435 435  **ATZ**
436 436  )))
437 -)))
438 438  
439 -(((
440 -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]].
441 -)))
330 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
442 442  
443 443  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
444 444  
... ... @@ -458,67 +458,44 @@
458 458  * FIRST: Indicate this is the first packet after join network.
459 459  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
460 460  
461 -(((
462 462  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
463 -)))
464 464  
465 -(((
466 466  **To use this mode, please run:**
467 -)))
468 468  
469 469  (% class="box infomessage" %)
470 470  (((
471 -(((
472 472  **AT+MOD=4**
473 473  )))
474 -)))
475 475  
476 476  (% class="box infomessage" %)
477 477  (((
478 -(((
479 479  **ATZ**
480 480  )))
481 -)))
482 482  
483 -(((
484 -
485 -)))
486 486  
487 -(((
488 -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]].
489 -)))
365 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
490 490  
491 -(((
492 492  **Plus below command for AVI1 Counting:**
493 -)))
494 494  
495 495  (% class="box infomessage" %)
496 496  (((
497 -(((
498 498  **AT+SETCNT=3,60   (set AVI Count to 60)**
499 499  )))
500 -)))
501 501  
502 502  (% class="box infomessage" %)
503 503  (((
504 -(((
505 505  **AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
506 506  )))
507 -)))
508 508  
509 509  (% class="box infomessage" %)
510 510  (((
511 -(((
512 512  **AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
513 513  )))
514 -)))
515 515  
516 516  (% class="box infomessage" %)
517 517  (((
518 -(((
519 519  **AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
520 520  )))
521 -)))
522 522  
523 523  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
524 524  
... ... @@ -532,35 +532,23 @@
532 532  
533 533  * RO is for relay. ROx=1 : close，ROx=0 always open.
534 534  * FIRST: Indicate this is the first packet after join network.
535 -* (((
536 -DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
537 -)))
401 +* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
538 538  
539 -(((
540 540  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
541 -)))
542 542  
543 -(((
544 544  **To use this mode, please run:**
545 -)))
546 546  
547 547  (% class="box infomessage" %)
548 548  (((
549 -(((
550 550  **AT+MOD=5**
551 551  )))
552 -)))
553 553  
554 554  (% class="box infomessage" %)
555 555  (((
556 -(((
557 557  **ATZ**
558 558  )))
559 -)))
560 560  
561 -(((
562 -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]].
563 -)))
417 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
564 564  
565 565  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
566 566  
... ... @@ -609,7 +609,7 @@
609 609  
610 610  **Downlink Command to set Trigger Condition**
611 611  
612 -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]]
613 613  
614 614  Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
615 615  
... ... @@ -629,7 +629,7 @@
629 629  
630 630  Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
631 631  
632 -**Example2**: AA 02 01 00
486 +Example2: AA 02 01 00
633 633  
634 634  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
635 635  
... ... @@ -968,10 +968,8 @@
968 968  
969 969  (% class="box infomessage" %)
970 970  (((
971 -(((
972 972  **0xA9 aa bb cc     ~/~/ Set DO1/DO2/DO3 output with time control**
973 973  )))
974 -)))
975 975  
976 976  This is to control the digital output time of DO pin. Include four bytes:
977 977  
... ... @@ -1180,21 +1180,18 @@
1180 1180  
1181 1181  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:
1182 1182  
1183 -(((
1184 1184  **Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1185 -)))
1186 1186  
1187 -(((
1188 1188  **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:
1189 -)))
1190 1190  
1191 1191  [[image:1653356737703-362.png||height="232" width="732"]]
1192 1192  
1193 1193  [[image:image-20220524094641-11.png||height="390" width="723"]]
1194 1194  
1043 +
1195 1195  [[image:image-20220524094641-12.png||height="402" width="718"]]
1196 1196  
1197 -**Step 3**: Create an account or log in Mydevices.
1046 +**Step **3: Create an account or log in Mydevices.
1198 1198  
1199 1199  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1200 1200  
... ... @@ -1204,6 +1204,7 @@
1204 1204  
1205 1205  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1206 1206  
1056 +
1207 1207  [[image:image-20220524094909-1.png||height="335" width="729"]]
1208 1208  
1209 1209  [[image:image-20220524094909-2.png||height="337" width="729"]]
... ... @@ -1214,6 +1214,10 @@
1214 1214  
1215 1215  [[image:image-20220524094909-5.png||height="341" width="734"]]
1216 1216  
1067 +
1068 +
1069 +
1070 +
1217 1217  == 3.6 Interface Detail ==
1218 1218  
1219 1219  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1229,10 +1229,8 @@
1229 1229  )))
1230 1230  
1231 1231  (((
1232 -(((
1233 1233  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
1234 1234  )))
1235 -)))
1236 1236  
1237 1237  [[image:1653357170703-587.png]]
1238 1238  
... ... @@ -1250,7 +1250,7 @@
1250 1250  
1251 1251  So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1252 1252  
1253 -[[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.
1254 1254  
1255 1255  If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1256 1256  
... ... @@ -1264,9 +1264,9 @@
1264 1264  
1265 1265  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1266 1266  
1267 -[[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:image-20220524095628-8.png]]= DI1+ / 1K.**
1268 1268  
1269 -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:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1270 1270  
1271 1271  
1272 1272  **Example3**: Connect to a 220v high active sensor.
... ... @@ -1278,7 +1278,7 @@
1278 1278  
1279 1279  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1280 1280  
1281 - [[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:image-20220524095628-8.png]] = DI1+ / 51K.**
1282 1282  
1283 1283  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.
1284 1284  
... ... @@ -1337,9 +1337,7 @@
1337 1337  
1338 1338  [[image:1653358238933-385.png]]
1339 1339  
1340 -(((
1341 1341  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:
1342 -)))
1343 1343  
1344 1344  [[image:1653358355238-883.png]]
1345 1345  
... ... @@ -1533,394 +1533,250 @@
1533 1533  
1534 1534  === 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1535 1535  
1536 -(((
1537 1537  If device has not joined network yet:
1538 -)))
1539 1539  
1540 -(((
1541 1541  (% style="background-color:#dcdcdc" %)123456
1542 -)))
1543 1543  
1544 -(((
1545 1545  (% style="background-color:#dcdcdc" %)AT+FDR
1546 -)))
1547 1547  
1548 -(((
1549 1549  (% style="background-color:#dcdcdc" %)123456
1550 -)))
1551 1551  
1552 -(((
1553 1553  (% style="background-color:#dcdcdc" %)AT+NJM=0
1554 -)))
1555 1555  
1556 -(((
1557 1557  (% style="background-color:#dcdcdc" %)ATZ
1558 -)))
1559 1559  
1560 1560  
1561 -(((
1562 1562  If device already joined network:
1563 -)))
1564 1564  
1565 -(((
1566 1566  (% style="background-color:#dcdcdc" %)AT+NJM=0
1567 -)))
1568 1568  
1569 -(((
1570 1570  (% style="background-color:#dcdcdc" %)ATZ
1571 -)))
1572 1572  
1573 1573  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1574 1574  
1575 -(((
1576 1576  (% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1577 -)))
1578 1578  
1579 -(((
1580 1580  (% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1581 -)))
1582 1582  
1583 -(((
1584 1584  (% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1585 -)))
1586 1586  
1587 -(((
1588 1588  (% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1589 -)))
1590 1590  
1591 -(((
1592 1592  (% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1593 -)))
1594 1594  
1595 -(((
1596 1596  (% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off
1597 -)))
1598 1598  
1599 -(((
1600 1600  (% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1601 -)))
1602 1602  
1603 -(((
1604 1604  (% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1605 -)))
1606 1606  
1607 -(((
1608 1608  (% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
1609 -)))
1610 1610  
1611 -(((
1612 1612  (% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1613 -)))
1614 1614  
1615 -(((
1616 1616  (% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1617 -)))
1618 1618  
1619 -(((
1620 1620  (% 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.
1621 -)))
1622 1622  
1623 -(((
1624 1624  (% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1625 -)))
1626 1626  
1627 -(((
1628 1628  (% style="color:red" %)**Note:**
1629 -)))
1630 1630  
1631 -(((
1632 1632  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1633 1633  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1634 1634  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.
1635 1635  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
1636 -)))
1637 1637  
1638 -(((
1639 -[[image:1653359097980-169.png||height="188" width="729"]]
1640 -)))
1440 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1641 1641  
1642 -(((
1643 -
1644 -)))
1645 1645  
1646 -=== 4.2.3 Change to Class A ===
1443 +1.
1444 +11.
1445 +111. Change to Class A
1647 1647  
1648 1648  If sensor JOINED
1649 -(% style="background-color:#dcdcdc" %)AT+CLASS=A
1448 +
1449 +AT+CLASS=A
1450 +
1650 1650  ATZ
1651 1651  
1652 -= 5. FAQ =
1653 1653  
1654 -== 5.1 How to upgrade the image? ==
1655 1655  
1455 +
1456 +
1457 +1. FAQ
1458 +
1459 +1.
1460 +11. How to upgrade the image?
1461 +
1656 1656  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1657 1657  
1658 1658  * Support new features
1659 1659  * For bug fix
1660 1660  * Change LoRaWAN bands.
1467 +
1661 1661  Below shows the hardware connection for how to upload an image to the LT:
1662 -* [[image:1653359603330-121.png]]
1663 1663  
1664 -(((
1470 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1471 +
1472 +
1665 1665  **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]].
1474 +
1666 1666  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1476 +
1667 1667  **Step3: **Open flashloader; choose the correct COM port to update.
1478 +
1479 +**For LT-33222-L**:
1480 +
1481 +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.
1482 +
1668 1668  **For LT-22222-L**:
1484 +
1669 1669  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.
1486 +
1487 +
1488 +
1489 +|(((
1490 +Board detected
1670 1670  )))
1671 1671  
1672 - [[image:image-20220524103407-12.png]]
1493 +|(((
1494 +
1495 +)))
1673 1673  
1674 -[[image:image-20220524103429-13.png]]
1497 +[[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]]
1675 1675  
1676 -[[image:image-20220524104033-15.png]]
1677 1677  
1678 -(% 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:
1679 1679  
1680 -[[image:1653360054704-518.png||height="186" width="745"]]
1501 +[[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]]
1681 1681  
1682 -(((
1683 -(((
1684 -== 5.2 How to change the LoRa Frequency Bands/Region? ==
1685 -)))
1686 -)))
1687 1687  
1688 -(((
1689 -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.
1690 -)))
1504 +[[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]]
1691 1691  
1692 -(((
1693 -== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1694 -)))
1695 1695  
1696 -(((
1697 -(((
1507 +**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1508 +
1509 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1510 +
1511 +
1512 +1.
1513 +11. How to change the LoRa Frequency Bands/Region?
1514 +
1515 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1516 +
1517 +
1518 +1.
1519 +11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1520 +
1698 1698  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
1699 -)))
1700 -)))
1701 1701  
1702 -(((
1703 -(((
1704 1704  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1705 -)))
1706 -)))
1707 1707  
1708 -(((
1709 -(% 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.
1710 -)))
1711 1711  
1712 -(((
1713 -[[image:1653360231087-571.png||height="401" width="727"]]
1714 -)))
1526 +**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.
1715 1715  
1716 -(((
1717 -(% 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.
1718 -)))
1528 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]
1719 1719  
1720 -(((
1721 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1722 -)))
1530 +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.
1723 1723  
1724 -(((
1725 -(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1726 -(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1727 -(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1728 -(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1729 -(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1730 -(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1731 -(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1732 -(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1733 -(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1734 -(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1735 -)))
1736 1736  
1737 -(((
1533 +**Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1534 +
1535 +123456   Enter Password to have AT access.
1536 +
1537 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1538 +
1539 +123456   Enter Password to have AT access.
1540 +
1541 +AT+NJM=0 Set to ABP mode
1542 +
1543 +AT+ADR=0 Set the Adaptive Data Rate Off
1544 +
1545 +AT+DR=5  Set Data Rate (Set AT+DR=3 for 915 band)
1546 +
1547 +AT+TDC=60000  Set transmit interval to 60 seconds
1548 +
1549 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1550 +
1551 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1
1552 +
1553 +ATZ                Reset MCU
1554 +
1738 1738  As shown in below:
1739 -)))
1740 1740  
1741 -[[image:1653360498588-932.png||height="485" width="726"]]
1557 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]
1742 1742  
1743 -== 5.4 Can I see counting event in Serial? ==
1744 1744  
1745 -(((
1560 +
1561 +1.
1562 +11. Can I see counting event in Serial?
1563 +
1746 1746  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.
1747 -)))
1748 1748  
1749 -(((
1750 -= 6. Trouble Shooting =
1751 -)))
1752 1752  
1753 -(((
1754 -(((
1755 -== 6.1 Downlink doesn’t work, how to solve it? ==
1756 -)))
1757 -)))
1758 1758  
1759 -(((
1760 -Please see this link for how to debug:
1761 1761  
1762 -[[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/]]
1763 -)))
1569 +1. Trouble Shooting     
1570 +11. Downlink doesn’t work, how to solve it?
1764 1764  
1765 -(((
1572 +Please see this link for how to debug:
1573 +
1766 1766  [[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]]
1767 -)))
1768 1768  
1769 -(((
1770 -== 6.2 Have trouble to upload image. ==
1771 -)))
1772 1772  
1773 -(((
1577 +1.
1578 +11. Have trouble to upload image.
1579 +
1774 1774  See this link for trouble shooting:
1775 -)))
1776 1776  
1777 -(((
1778 1778  [[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]]
1779 -)))
1780 1780  
1781 -(((
1782 -== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1783 -)))
1784 1784  
1785 -(((
1585 +1.
1586 +11. Why I can’t join TTN in US915 /AU915 bands?
1587 +
1786 1786  It might be about the channels mapping. Please see this link for detail:
1787 -)))
1788 1788  
1789 -(((
1790 1790  [[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]]
1791 -)))
1792 1792  
1793 -(((
1794 -= 7. Order Info =
1795 -)))
1796 1796  
1797 -(((
1798 -(((
1799 -(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1800 -)))
1801 -)))
1802 1802  
1803 -(((
1804 -(((
1805 -(% style="color:#4f81bd" %)**XXX:**
1806 -)))
1807 -)))
1808 1808  
1809 -(((
1810 -* (((
1811 -(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1812 -)))
1813 -)))
1595 +1. Order Info
1814 1814  
1815 -(((
1816 -* (((
1817 -(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1818 -)))
1819 -)))
1597 +**For LT-33222-L-XXX or LT-22222-L-XXX:**
1820 1820  
1821 -(((
1822 -* (((
1823 -(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1824 -)))
1825 -)))
1599 +**XXX:**
1826 1826  
1827 -(((
1828 -* (((
1829 -(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1830 -)))
1831 -)))
1601 +* **EU433**: LT with frequency bands EU433
1602 +* **EU868**: LT with frequency bands EU868
1603 +* **KR920**: LT with frequency bands KR920
1604 +* **CN470**: LT with frequency bands CN470
1605 +* **AS923**: LT with frequency bands AS923
1606 +* **AU915**: LT with frequency bands AU915
1607 +* **US915**: LT with frequency bands US915
1608 +* **IN865**: LT with frequency bands IN865
1609 +* **CN779**: LT with frequency bands CN779
1832 1832  
1833 -(((
1834 -* (((
1835 -(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1836 -)))
1837 -)))
1611 +1. Packing Info
1838 1838  
1839 -(((
1840 -* (((
1841 -(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1842 -)))
1843 -)))
1844 -
1845 -(((
1846 -* (((
1847 -(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1848 -)))
1849 -)))
1850 -
1851 -(((
1852 -* (((
1853 -(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1854 -)))
1855 -)))
1856 -
1857 -(((
1858 -* (((
1859 -(% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1860 -)))
1861 -
1862 -= 8. Packing Info =
1863 -)))
1864 -
1865 -(((
1866 -(((
1867 1867  **Package Includes**:
1868 -)))
1869 -)))
1870 1870  
1871 -(((
1872 -(((
1873 -* LT-22222-L I/O Controller x 1
1615 +* LT I/O Controller x 1
1874 1874  * Stick Antenna for LoRa RF part x 1
1875 1875  * Bracket for controller x1
1876 1876  * Program cable x 1
1877 -)))
1878 -)))
1879 1879  
1880 -(((
1881 -(((
1882 1882  **Dimension and weight**:
1883 -)))
1884 -)))
1885 1885  
1886 -(((
1887 -(((
1888 1888  * Device Size: 13.5 x 7 x 3 cm
1889 1889  * Device Weight: 105g
1890 1890  * Package Size / pcs : 14.5 x 8 x 5 cm
1891 1891  * Weight / pcs : 170g
1892 -)))
1893 -)))
1894 1894  
1895 -(((
1896 -= 9. Support =
1897 -)))
1627 +1. Support
1898 1898  
1899 -* (((
1900 -(((
1901 -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.
1902 -)))
1903 -)))
1904 -* (((
1905 -(((
1906 -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
1907 -)))
1908 -)))
1629 +* 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.
1630 +* 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
1909 1909  
1910 -(((
1911 -(((
1912 - [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1913 -)))
1914 -
1915 -(((
1916 -= 10. Reference​​​​​ =
1917 -
1918 -* Product Page:
1919 -
1920 -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]]
1921 -
1922 -* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1923 -* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1924 -* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
1925 -)))
1926 -)))
1632 +[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1653359603330-121.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -598.0 KB
Content
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-20220524103407-12.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -66.5 KB
Content
image-20220524103429-13.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -127.2 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