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From version < 66.28 >
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... ... @@ -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
... ... @@ -199,19 +199,13 @@
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  
... ... @@ -311,9 +311,7 @@
311 311  
312 312  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
313 313  
314 -(((
315 315  Total : 11 bytes payload
316 -)))
317 317  
318 318  [[image:image-20220523180452-3.png]]
319 319  
... ... @@ -327,77 +327,53 @@
327 327  * FIRST: Indicate this is the first packet after join network.
328 328  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
329 329  
330 -(((
331 331  (% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
332 -)))
333 333  
334 -(((
335 335  **To use counting mode, please run:**
336 -)))
337 337  
338 338  (% class="box infomessage" %)
339 339  (((
340 -(((
341 341  **AT+MOD=2**
342 342  )))
343 -)))
344 344  
345 345  (% class="box infomessage" %)
346 346  (((
347 -(((
348 348  **ATZ**
349 349  )))
350 -)))
351 351  
352 -(((
353 353  (% style="color:#4f81bd" %)**AT Commands for counting:**
354 -)))
355 355  
356 -(((
357 357  **For LT22222-L:**
358 -)))
359 359  
360 360  (% class="box infomessage" %)
361 361  (((
362 -(((
363 363  **AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
364 364  )))
365 -)))
366 366  
367 367  (% class="box infomessage" %)
368 368  (((
369 -(((
370 370  **AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
371 371  )))
372 -)))
373 373  
374 374  (% class="box infomessage" %)
375 375  (((
376 -(((
377 377  **AT+TRIG2=0,100 (set DI2 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+TRIG2=1,100 (set DI2 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+SETCNT=1,60   (Set COUNT1 value to 60)**
392 392  )))
393 -)))
394 394  
395 395  (% class="box infomessage" %)
396 396  (((
397 -(((
398 398  **AT+SETCNT=2,60   (Set COUNT2 value to 60)**
399 399  )))
400 -)))
401 401  
402 402  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
403 403  
... ... @@ -415,31 +415,21 @@
415 415  * FIRST: Indicate this is the first packet after join network.
416 416  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
417 417  
418 -(((
419 419  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
420 -)))
421 421  
422 -(((
423 423  **To use counting mode, please run:**
424 -)))
425 425  
426 426  (% class="box infomessage" %)
427 427  (((
428 -(((
429 429  **AT+MOD=3**
430 430  )))
431 -)))
432 432  
433 433  (% class="box infomessage" %)
434 434  (((
435 -(((
436 436  **ATZ**
437 437  )))
438 -)))
439 439  
440 -(((
441 -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]].
442 -)))
330 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
443 443  
444 444  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
445 445  
... ... @@ -459,67 +459,44 @@
459 459  * FIRST: Indicate this is the first packet after join network.
460 460  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
461 461  
462 -(((
463 463  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
464 -)))
465 465  
466 -(((
467 467  **To use this mode, please run:**
468 -)))
469 469  
470 470  (% class="box infomessage" %)
471 471  (((
472 -(((
473 473  **AT+MOD=4**
474 474  )))
475 -)))
476 476  
477 477  (% class="box infomessage" %)
478 478  (((
479 -(((
480 480  **ATZ**
481 481  )))
482 -)))
483 483  
484 -(((
485 -
486 -)))
487 487  
488 -(((
489 -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]].
490 -)))
365 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
491 491  
492 -(((
493 493  **Plus below command for AVI1 Counting:**
494 -)))
495 495  
496 496  (% class="box infomessage" %)
497 497  (((
498 -(((
499 499  **AT+SETCNT=3,60   (set AVI Count to 60)**
500 500  )))
501 -)))
502 502  
503 503  (% class="box infomessage" %)
504 504  (((
505 -(((
506 506  **AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
507 507  )))
508 -)))
509 509  
510 510  (% class="box infomessage" %)
511 511  (((
512 -(((
513 513  **AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
514 514  )))
515 -)))
516 516  
517 517  (% class="box infomessage" %)
518 518  (((
519 -(((
520 520  **AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
521 521  )))
522 -)))
523 523  
524 524  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
525 525  
... ... @@ -533,35 +533,23 @@
533 533  
534 534  * RO is for relay. ROx=1 : close，ROx=0 always open.
535 535  * FIRST: Indicate this is the first packet after join network.
536 -* (((
537 -DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
538 -)))
401 +* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
539 539  
540 -(((
541 541  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
542 -)))
543 543  
544 -(((
545 545  **To use this mode, please run:**
546 -)))
547 547  
548 548  (% class="box infomessage" %)
549 549  (((
550 -(((
551 551  **AT+MOD=5**
552 552  )))
553 -)))
554 554  
555 555  (% class="box infomessage" %)
556 556  (((
557 -(((
558 558  **ATZ**
559 559  )))
560 -)))
561 561  
562 -(((
563 -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]].
564 -)))
417 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
565 565  
566 566  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
567 567  
... ... @@ -610,7 +610,7 @@
610 610  
611 611  **Downlink Command to set Trigger Condition**
612 612  
613 -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]]
614 614  
615 615  Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
616 616  
... ... @@ -630,7 +630,7 @@
630 630  
631 631  Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
632 632  
633 -**Example2**: AA 02 01 00
486 +Example2: AA 02 01 00
634 634  
635 635  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
636 636  
... ... @@ -969,10 +969,8 @@
969 969  
970 970  (% class="box infomessage" %)
971 971  (((
972 -(((
973 973  **0xA9 aa bb cc     ~/~/ Set DO1/DO2/DO3 output with time control**
974 974  )))
975 -)))
976 976  
977 977  This is to control the digital output time of DO pin. Include four bytes:
978 978  
... ... @@ -1189,9 +1189,10 @@
1189 1189  
1190 1190  [[image:image-20220524094641-11.png||height="390" width="723"]]
1191 1191  
1043 +
1192 1192  [[image:image-20220524094641-12.png||height="402" width="718"]]
1193 1193  
1194 -**Step 3**: Create an account or log in Mydevices.
1046 +**Step **3: Create an account or log in Mydevices.
1195 1195  
1196 1196  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1197 1197  
... ... @@ -1201,6 +1201,7 @@
1201 1201  
1202 1202  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1203 1203  
1056 +
1204 1204  [[image:image-20220524094909-1.png||height="335" width="729"]]
1205 1205  
1206 1206  [[image:image-20220524094909-2.png||height="337" width="729"]]
... ... @@ -1211,6 +1211,10 @@
1211 1211  
1212 1212  [[image:image-20220524094909-5.png||height="341" width="734"]]
1213 1213  
1067 +
1068 +
1069 +
1070 +
1214 1214  == 3.6 Interface Detail ==
1215 1215  
1216 1216  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1226,10 +1226,8 @@
1226 1226  )))
1227 1227  
1228 1228  (((
1229 -(((
1230 1230  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
1231 1231  )))
1232 -)))
1233 1233  
1234 1234  [[image:1653357170703-587.png]]
1235 1235  
... ... @@ -1247,7 +1247,7 @@
1247 1247  
1248 1248  So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1249 1249  
1250 -[[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.
1251 1251  
1252 1252  If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1253 1253  
... ... @@ -1261,9 +1261,9 @@
1261 1261  
1262 1262  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1263 1263  
1264 -[[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:/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.**
1265 1265  
1266 -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:/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.
1267 1267  
1268 1268  
1269 1269  **Example3**: Connect to a 220v high active sensor.
... ... @@ -1275,7 +1275,7 @@
1275 1275  
1276 1276  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1277 1277  
1278 - [[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:/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.**
1279 1279  
1280 1280  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.
1281 1281  
... ... @@ -1334,9 +1334,7 @@
1334 1334  
1335 1335  [[image:1653358238933-385.png]]
1336 1336  
1337 -(((
1338 1338  In PC, User needs to set (% style="color:#4f81bd" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console for LT. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**)(%%) to active it. As shown below:
1339 -)))
1340 1340  
1341 1341  [[image:1653358355238-883.png]]
1342 1342  
... ... @@ -1658,13 +1658,11 @@
1658 1658  Below shows the hardware connection for how to upload an image to the LT:
1659 1659  * [[image:1653359603330-121.png]]
1660 1660  
1661 -(((
1662 1662  **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]].
1663 1663  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1664 1664  **Step3: **Open flashloader; choose the correct COM port to update.
1665 1665  **For LT-22222-L**:
1666 1666  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.
1667 -)))
1668 1668  
1669 1669   [[image:image-20220524103407-12.png]]
1670 1670  
... ... @@ -1703,6 +1703,10 @@
1703 1703  )))
1704 1704  
1705 1705  (((
1557 +
1558 +)))
1559 +
1560 +(((
1706 1706  (% 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.
1707 1707  )))
1708 1708  
... ... @@ -1710,15 +1710,10 @@
1710 1710  [[image:1653360231087-571.png||height="401" width="727"]]
1711 1711  )))
1712 1712  
1713 -(((
1714 1714  (% 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.
1715 -)))
1716 1716  
1717 -(((
1718 1718  (% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1719 -)))
1720 1720  
1721 -(((
1722 1722  (% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1723 1723  (% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1724 1724  (% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
... ... @@ -1729,11 +1729,8 @@
1729 1729  (% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1730 1730  (% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1731 1731  (% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1732 -)))
1733 1733  
1734 -(((
1735 1735  As shown in below:
1736 -)))
1737 1737  
1738 1738  [[image:1653360498588-932.png||height="485" width="726"]]
1739 1739  
... ... @@ -1744,7 +1744,7 @@
1744 1744  )))
1745 1745  
1746 1746  (((
1747 -= 6. Trouble Shooting =
1594 += 6. Trouble Shooting     =
1748 1748  )))
1749 1749  
1750 1750  (((
... ... @@ -1792,85 +1792,68 @@
1792 1792  )))
1793 1793  
1794 1794  (((
1795 -(((
1796 -(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1642 +**LT-22222-L-XXX:**
1797 1797  )))
1798 -)))
1799 1799  
1800 1800  (((
1801 -(((
1802 -(% style="color:#4f81bd" %)**XXX:**
1646 +**XXX:**
1803 1803  )))
1804 -)))
1805 1805  
1806 -(((
1807 1807  * (((
1808 -(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1650 +**EU433**: LT with frequency bands EU433
1809 1809  )))
1652 +* (((
1653 +**EU868**: LT with frequency bands EU868
1810 1810  )))
1811 -
1812 -(((
1813 1813  * (((
1814 -(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1656 +**KR920**: LT with frequency bands KR920
1815 1815  )))
1658 +* (((
1659 +**CN470**: LT with frequency bands CN470
1816 1816  )))
1817 -
1818 -(((
1819 1819  * (((
1820 -(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1662 +**AS923**: LT with frequency bands AS923
1821 1821  )))
1664 +* (((
1665 +**AU915**: LT with frequency bands AU915
1822 1822  )))
1823 -
1824 -(((
1825 1825  * (((
1826 -(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1668 +**US915**: LT with frequency bands US915
1827 1827  )))
1828 -)))
1829 -
1830 -(((
1831 1831  * (((
1832 -(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1671 +**IN865**: LT with frequency bands IN865
1833 1833  )))
1834 -)))
1835 1835  
1836 1836  (((
1837 -* (((
1838 -(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1675 +* **CN779**: LT with frequency bands CN779
1676 +
1677 += 8. Packing Info =
1839 1839  )))
1840 -)))
1841 1841  
1842 1842  (((
1843 -* (((
1844 -(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1681 +(((
1682 +**Package Includes**:
1845 1845  )))
1846 1846  )))
1847 1847  
1848 -(((
1849 1849  * (((
1850 -(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1687 +(((
1688 +LT I/O Controller x 1
1851 1851  )))
1852 1852  )))
1853 -
1854 -(((
1855 1855  * (((
1856 -(% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1692 +(((
1693 +Stick Antenna for LoRa RF part x 1
1857 1857  )))
1858 -
1859 -= 8. Packing Info =
1860 1860  )))
1861 -
1696 +* (((
1862 1862  (((
1863 -(((
1864 -**Package Includes**:
1698 +Bracket for controller x1
1865 1865  )))
1866 1866  )))
1867 -
1701 +* (((
1868 1868  (((
1869 -(((
1870 -* LT-22222-L I/O Controller x 1
1871 -* Stick Antenna for LoRa RF part x 1
1872 -* Bracket for controller x1
1873 -* Program cable x 1
1703 +Program cable x 1
1874 1874  )))
1875 1875  )))
1876 1876  
... ... @@ -1908,16 +1908,4 @@
1908 1908  (((
1909 1909   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1910 1910  )))
1911 -
1912 -(((
1913 -= 10. Reference​​​​​ =
1914 -
1915 -* Product Page:
1916 -
1917 -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]]
1918 -
1919 -* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1920 -* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1921 -* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
1922 1922  )))
1923 -)))

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