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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 66.25
edited by Xiaoling
on 2022/05/24 14:02
Change comment: There is no comment for this version
To version 33.1
edited by Xiaoling
on 2022/05/24 09:38
Change comment: Uploaded new attachment "image-20220524093831-10.png", version {1}

Summary

Details

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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
... ... @@ -199,21 +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 -(((
211 211  3.2 Example to join LoRaWAN network
212 -)))
213 213  
214 -(((
215 215  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. 
216 -)))
217 217  
218 218  [[image:image-20220523172350-1.png||height="266" width="864"]]
219 219  
... ... @@ -313,9 +313,7 @@
313 313  
314 314  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
315 315  
316 -(((
317 317  Total : 11 bytes payload
318 -)))
319 319  
320 320  [[image:image-20220523180452-3.png]]
321 321  
... ... @@ -329,77 +329,53 @@
329 329  * FIRST: Indicate this is the first packet after join network.
330 330  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
331 331  
332 -(((
333 333  (% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
334 -)))
335 335  
336 -(((
337 337  **To use counting mode, please run:**
338 -)))
339 339  
340 340  (% class="box infomessage" %)
341 341  (((
342 -(((
343 343  **AT+MOD=2**
344 344  )))
345 -)))
346 346  
347 347  (% class="box infomessage" %)
348 348  (((
349 -(((
350 350  **ATZ**
351 351  )))
352 -)))
353 353  
354 -(((
355 355  (% style="color:#4f81bd" %)**AT Commands for counting:**
356 -)))
357 357  
358 -(((
359 359  **For LT22222-L:**
360 -)))
361 361  
362 362  (% class="box infomessage" %)
363 363  (((
364 -(((
365 365  **AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
366 366  )))
367 -)))
368 368  
369 369  (% class="box infomessage" %)
370 370  (((
371 -(((
372 372  **AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
373 373  )))
374 -)))
375 375  
376 376  (% class="box infomessage" %)
377 377  (((
378 -(((
379 379  **AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
380 380  )))
381 -)))
382 382  
383 383  (% class="box infomessage" %)
384 384  (((
385 -(((
386 386  **AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
387 387  )))
388 -)))
389 389  
390 390  (% class="box infomessage" %)
391 391  (((
392 -(((
393 393  **AT+SETCNT=1,60   (Set COUNT1 value to 60)**
394 394  )))
395 -)))
396 396  
397 397  (% class="box infomessage" %)
398 398  (((
399 -(((
400 400  **AT+SETCNT=2,60   (Set COUNT2 value to 60)**
401 401  )))
402 -)))
403 403  
404 404  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
405 405  
... ... @@ -417,31 +417,21 @@
417 417  * FIRST: Indicate this is the first packet after join network.
418 418  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
419 419  
420 -(((
421 421  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
422 -)))
423 423  
424 -(((
425 425  **To use counting mode, please run:**
426 -)))
427 427  
428 428  (% class="box infomessage" %)
429 429  (((
430 -(((
431 431  **AT+MOD=3**
432 432  )))
433 -)))
434 434  
435 435  (% class="box infomessage" %)
436 436  (((
437 -(((
438 438  **ATZ**
439 439  )))
440 -)))
441 441  
442 -(((
443 -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]].
444 -)))
330 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
445 445  
446 446  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
447 447  
... ... @@ -461,67 +461,44 @@
461 461  * FIRST: Indicate this is the first packet after join network.
462 462  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
463 463  
464 -(((
465 465  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
466 -)))
467 467  
468 -(((
469 469  **To use this mode, please run:**
470 -)))
471 471  
472 472  (% class="box infomessage" %)
473 473  (((
474 -(((
475 475  **AT+MOD=4**
476 476  )))
477 -)))
478 478  
479 479  (% class="box infomessage" %)
480 480  (((
481 -(((
482 482  **ATZ**
483 483  )))
484 -)))
485 485  
486 -(((
487 -
488 -)))
489 489  
490 -(((
491 -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]].
492 -)))
365 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
493 493  
494 -(((
495 495  **Plus below command for AVI1 Counting:**
496 -)))
497 497  
498 498  (% class="box infomessage" %)
499 499  (((
500 -(((
501 501  **AT+SETCNT=3,60   (set AVI Count to 60)**
502 502  )))
503 -)))
504 504  
505 505  (% class="box infomessage" %)
506 506  (((
507 -(((
508 508  **AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
509 509  )))
510 -)))
511 511  
512 512  (% class="box infomessage" %)
513 513  (((
514 -(((
515 515  **AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
516 516  )))
517 -)))
518 518  
519 519  (% class="box infomessage" %)
520 520  (((
521 -(((
522 522  **AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
523 523  )))
524 -)))
525 525  
526 526  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
527 527  
... ... @@ -535,35 +535,23 @@
535 535  
536 536  * RO is for relay. ROx=1 : close，ROx=0 always open.
537 537  * FIRST: Indicate this is the first packet after join network.
538 -* (((
539 -DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
540 -)))
401 +* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
541 541  
542 -(((
543 543  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
544 -)))
545 545  
546 -(((
547 547  **To use this mode, please run:**
548 -)))
549 549  
550 550  (% class="box infomessage" %)
551 551  (((
552 -(((
553 553  **AT+MOD=5**
554 554  )))
555 -)))
556 556  
557 557  (% class="box infomessage" %)
558 558  (((
559 -(((
560 560  **ATZ**
561 561  )))
562 -)))
563 563  
564 -(((
565 -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]].
566 -)))
417 +Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
567 567  
568 568  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
569 569  
... ... @@ -612,7 +612,7 @@
612 612  
613 613  **Downlink Command to set Trigger Condition**
614 614  
615 -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]]
616 616  
617 617  Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
618 618  
... ... @@ -632,7 +632,7 @@
632 632  
633 633  Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
634 634  
635 -**Example2**: AA 02 01 00
486 +Example2: AA 02 01 00
636 636  
637 637  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
638 638  
... ... @@ -971,10 +971,8 @@
971 971  
972 972  (% class="box infomessage" %)
973 973  (((
974 -(((
975 975  **0xA9 aa bb cc     ~/~/ Set DO1/DO2/DO3 output with time control**
976 976  )))
977 -)))
978 978  
979 979  This is to control the digital output time of DO pin. Include four bytes:
980 980  
... ... @@ -996,7 +996,11 @@
996 996  
997 997  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
998 998  
999 -[[image:image-20220524093351-8.png]]
848 +(% border="1" style="background-color:#f7faff" %)
849 +|Second Byte|Status
850 +|0x01|DO3 set to low
851 +|0x00|DO3 set to high
852 +|0x11|DO3 NO Action
1000 1000  
1001 1001  (% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
1002 1002  
... ... @@ -1004,129 +1004,147 @@
1004 1004  
1005 1005  Device will upload a packet if downlink code executes successfully.
1006 1006  
1007 -**Example payload:**
1008 1008  
1009 -**~1. A9 01 01 01 01 07 D0**
1010 1010  
862 +Example payload:
863 +
864 +1. A9 01 01 01 01 07 D0
865 +
1011 1011  DO1 pin & DO2 pin & DO3 pin will be set to Low, last 2 seconds, then change back to original state.
1012 1012  
1013 -**2. A9 01 00 01 11 07 D0**
1014 1014  
869 +1. A9 01 00 01 11 07 D0
870 +
1015 1015  DO1 pin set high, DO2 pin set low, DO3 pin no action, last 2 seconds, then change back to original state.
1016 1016  
1017 -**3. A9 00 00 00 00 07 D0**
1018 1018  
874 +1. A9 00 00 00 00 07 D0
875 +
1019 1019  DO1 pin & DO2 pin & DO3 pin will be set to high, last 2 seconds, then both change to low.
1020 1020  
1021 -**4. A9 00 11 01 00 07 D0**
1022 1022  
879 +1. A9 00 11 01 00 07 D0
880 +
1023 1023  DO1 pin no action, DO2 pin set low, DO3 pin set high, last 2 seconds, then DO1 pin no action, DO2 pin set high, DO3 pin set low
1024 1024  
1025 1025  
1026 -=== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
1027 1027  
885 +
886 +==== Relay ~-~- Control Relay Output RO1/RO2 ====
887 +
1028 1028  * AT Command:
1029 1029  
1030 1030  There is no AT Command to control Relay Output
1031 1031  
892 +
1032 1032  * Downlink Payload (prefix 0x03):
1033 1033  
1034 -(% class="box infomessage" %)
1035 -(((
1036 -**0x03 aa bb     ~/~/ Set RO1/RO2 output**
1037 -)))
895 +0x03 aa bb     ~/~/ Set RO1/RO2 output
1038 1038  
1039 -(((
1040 1040  If payload = 0x030100, it means set RO1 to close and RO2 to open.
1041 -)))
1042 1042  
1043 -(((
1044 1044  01: Close ,  00: Open , 11: No action
1045 -)))
1046 1046  
1047 -(((
1048 -[[image:image-20220524093724-9.png]]
1049 -)))
901 +(% border="1" style="background-color:#f7faff" %)
902 +|Downlink Code|RO1|RO2
903 +|03  00  11|Open|No Action
904 +|03  01  11|Close|No Action
905 +|03  11  00|No Action|Open
906 +|03  11  01|No Action|Close
907 +|03  00  00|Open|Open
908 +|03  01  01|Close|Close
909 +|03  01  00|Close|Open
910 +|03  00  01|Open|Close
1050 1050  
1051 1051  Device will upload a packet if downlink code executes successfully.
1052 1052  
1053 1053  
1054 -==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
915 +==== Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1055 1055  
1056 1056  * AT Command:
1057 1057  
1058 1058  There is no AT Command to control Relay Output
1059 1059  
921 +
1060 1060  * Downlink Payload (prefix 0x05):
1061 1061  
1062 -(% class="box infomessage" %)
1063 -(((
1064 -**0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:**
1065 -)))
924 +0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:
1066 1066  
1067 1067  This is to control the relay output time of relay. Include four bytes:
1068 1068  
1069 -(% style="color:#4f81bd" %)**First Byte **(%%)**:** Type code (0x05)
928 +**First Byte:** Type code (0x05)
1070 1070  
1071 -(% style="color:#4f81bd" %)**Second Byte(aa)**(%%): Inverter Mode
930 +**Second Byte(aa)**: Inverter Mode
1072 1072  
1073 1073  01: Relays will change back to original state after timeout.
1074 1074  
1075 1075  00: Relays will change to an inverter state after timeout
1076 1076  
1077 -(% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
1078 1078  
1079 -[[image:image-20220524093831-10.png]]
937 +**Third Byte(bb)**: Control Method and Ports status:
1080 1080  
1081 -(% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
939 +(% border="1" style="background-color:#f7faff" %)
940 +|Value|Status
941 +|0x11|RO1 and RO2 to NO
942 +|0x10|RO2 to NO, RO1 to NC
943 +|0x01|RO2 to NC, RO1 to NO
944 +|0x00|RO1 and RO2 to NC.
945 +|0x20|RO1 No Action, RO2 to NC
946 +|0x21|RO1 No Action, RO2 to NO
947 +|0x02|RO1 to NC, RO2 No Action
948 +|0x12|RO1 to NO, RO2 No Action
1082 1082  
950 +**Fourth / Fifth Bytes (cc)**: Latching time. Unit: ms
951 +
1083 1083  Device will upload a packet if downlink code executes successfully.
1084 1084  
954 +
955 +
1085 1085  **Example payload:**
1086 1086  
1087 -**~1. 05 01 11 07 D0**
958 +1. 05 01 11 07 D0
1088 1088  
1089 1089  Relay1 and Relay 2 will be set to NO , last 2 seconds, then change back to original state.
1090 1090  
1091 -**2. 05 01 10 07 D0**
1092 1092  
963 +1. 05 01 10 07 D0
964 +
1093 1093  Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then both change back to original state.
1094 1094  
1095 -**3. 05 00 01 07 D0**
1096 1096  
968 +1. 05 00 01 07 D0
969 +
1097 1097  Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then relay change to NO, Relay2 change to NC.
1098 1098  
1099 -**4. 05 00 00 07 D0**
1100 1100  
973 +1. 05 00 00 07 D0
974 +
1101 1101  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
1102 1102  
1103 1103  
1104 -==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1105 1105  
1106 -When voltage exceed the threshold, count. Feature see [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]
1107 1107  
980 +
981 +
982 +==== Counting ~-~- Voltage threshold counting ====
983 +
984 +When voltage exceed the threshold, count. Feature see [[MOD4>>path:#MOD4]]
985 +
1108 1108  * AT Command:
1109 1109  
1110 -(% class="box infomessage" %)
1111 -(((
1112 -**AT+VOLMAX    ~/~/ See [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]**
1113 -)))
988 +AT+VOLMAX    ~/~/ See [[MOD4>>path:#MOD4]]
1114 1114  
990 +
1115 1115  * Downlink Payload (prefix 0xA5):
1116 1116  
1117 -(% class="box infomessage" %)
1118 -(((
1119 -**0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1120 -)))
993 +0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc
1121 1121  
1122 -==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1123 1123  
996 +==== Counting ~-~- Pre-configure the Count Number ====
997 +
1124 1124  * AT Command:
1125 1125  
1126 -(% class="box infomessage" %)
1127 -(((
1128 -**AT+SETCNT=aa,(bb cc dd ee) **
1129 -)))
1000 +AT+SETCNT=aa,(bb cc dd ee)
1130 1130  
1131 1131  aa: 1: Set count1,
1132 1132  
... ... @@ -1136,108 +1136,115 @@
1136 1136  
1137 1137  Bb cc dd ee: number to be set
1138 1138  
1010 +
1139 1139  * Downlink Payload (prefix 0xA8):
1140 1140  
1141 -(% class="box infomessage" %)
1142 -(((
1143 -**0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1144 -)))
1013 +0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
1145 1145  
1146 -==== 3.4.2.18 Counting ~-~- Clear Counting ====
1147 1147  
1016 +
1017 +
1018 +
1019 +==== Counting ~-~- Clear Counting ====
1020 +
1148 1148  Clear counting for counting mode
1149 1149  
1150 1150  * AT Command:
1151 1151  
1152 -(% class="box infomessage" %)
1153 -(((
1154 -**AT+CLRCOUNT ~/~/ clear all counting**
1155 -)))
1025 +AT+CLRCOUNT ~/~/ clear all counting
1156 1156  
1027 +
1157 1157  * Downlink Payload (prefix 0xA6):
1158 1158  
1159 -(% class="box infomessage" %)
1160 -(((
1161 -**0x A6 01     ~/~/ clear all counting,**
1162 -)))
1030 +0x A6 01     ~/~/ clear all counting,
1163 1163  
1164 -==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1165 1165  
1033 +
1034 +
1035 +==== Counting ~-~- Change counting mode save time ====
1036 +
1166 1166  * AT Command:
1167 1167  
1168 -(% class="box infomessage" %)
1169 -(((
1170 -**AT+COUTIME=60  ~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)**
1171 -)))
1039 +AT+COUTIME=60  ~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)
1172 1172  
1041 +
1173 1173  * Downlink Payload (prefix 0xA7):
1174 1174  
1175 -(% class="box infomessage" %)
1176 -(((
1177 -**0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,**
1178 -)))
1044 +0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,
1179 1179  
1180 1180  range: aa bb cc:0 to 16777215,  (unit:second)
1181 1181  
1182 -== 3.5 Integrate with Mydevice ==
1183 1183  
1049 +
1050 +
1051 +1.
1052 +11. Integrate with Mydevice
1053 +
1184 1184  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:
1185 1185  
1186 -**Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1187 1187  
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:
1057 +Step 1: Be sure that your device is programmed and properly connected to the network at this time.
1189 1189  
1190 -[[image:1653356737703-362.png||height="232" width="732"]]
1059 +Step 2: To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1191 1191  
1192 -[[image:image-20220524094641-11.png||height="390" width="723"]]
1193 1193  
1194 -[[image:image-20220524094641-12.png||height="402" width="718"]]
1062 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
1195 1195  
1196 -**Step 3**: Create an account or log in Mydevices.
1197 1197  
1198 -**Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1065 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
1199 1199  
1067 +
1068 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]]
1069 +
1070 +
1071 +
1072 +Step 3: Create an account or log in Mydevices.
1073 +
1074 +Step 4: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.
1075 +
1200 1200  Search under The things network
1201 1201  
1202 -[[image:1653356838789-523.png||height="337" width="740"]]
1078 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
1203 1203  
1080 +
1204 1204  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1205 1205  
1206 -[[image:image-20220524094909-1.png||height="335" width="729"]]
1083 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
1207 1207  
1208 -[[image:image-20220524094909-2.png||height="337" width="729"]]
1209 1209  
1210 -[[image:image-20220524094909-3.png||height="338" width="727"]]
1086 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
1211 1211  
1212 -[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1213 1213  
1214 -[[image:image-20220524094909-5.png||height="341" width="734"]]
1089 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
1215 1215  
1216 -== 3.6 Interface Detail ==
1217 1217  
1218 -=== 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1092 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
1219 1219  
1094 +
1095 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
1096 +
1097 +
1098 +1.
1099 +11. Interface Detail
1100 +111. Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active )
1101 +
1220 1220  Support NPN Type sensor
1221 1221  
1222 -[[image:1653356991268-289.png]]
1104 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
1223 1223  
1224 -=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1225 1225  
1226 -(((
1107 +
1108 +1.
1109 +11.
1110 +111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
1111 +
1227 1227  The DI port of LT-22222-L can support NPN or PNP output sensor.
1228 -)))
1229 1229  
1230 -(((
1231 -(((
1232 1232  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
1233 -)))
1234 -)))
1235 1235  
1236 -[[image:1653357170703-587.png]]
1116 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
1237 1237  
1238 -(((
1239 1239  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1240 -)))
1241 1241  
1242 1242  
1243 1243  **Example1**: Connect to a Low active sensor.
... ... @@ -1247,11 +1247,11 @@
1247 1247  * Connect sensor’s output to DI1-
1248 1248  * Connect sensor’s VCC to DI1+.
1249 1249  
1250 -So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1128 +So when sensor active, the current between NEC2501 pin1 and pin2 is:
1251 1251  
1252 -[[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.**
1130 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1253 1253  
1254 -If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1132 +If DI1+ = 12v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 12mA , So the LT-22222-L will be able to detect this active signal.
1255 1255  
1256 1256  
1257 1257  **Example2**: Connect to a High active sensor.
... ... @@ -1263,12 +1263,12 @@
1263 1263  
1264 1264  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1265 1265  
1266 -[[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.**
1144 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1267 1267  
1268 -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.
1146 +If DI1+ = 24v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 24mA , So the LT-22222-L will be able to detect this high active signal.
1269 1269  
1270 1270  
1271 -**Example3**: Connect to a 220v high active sensor.
1149 +**Example3**: Connect to a 220v high active sensor.公司测试一下
1272 1272  
1273 1273  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1274 1274  
... ... @@ -1277,24 +1277,34 @@
1277 1277  
1278 1278  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1279 1279  
1280 - [[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.**
1158 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 51K.
1281 1281  
1282 -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.
1160 +If sensor output is 220v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1283 1283  
1284 -=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1285 1285  
1163 +1.
1164 +11.
1165 +111. Digital Output Port: DO1/DO2 /DO3
1166 +
1286 1286  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1287 1287  
1288 -[[image:1653357531600-905.png]]
1169 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1289 1289  
1290 -=== 3.6.4 Analog Input Interface ===
1291 1291  
1172 +
1173 +
1174 +1.
1175 +11.
1176 +111. Analog Input Interface
1177 +
1292 1292  The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is:
1293 1293  
1294 -**AC2 = (IN2 voltage )/12**
1180 +AC2 = (IN2 voltage )/12
1295 1295  
1296 -[[image:1653357592296-182.png]]
1182 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
1297 1297  
1184 +
1185 +
1298 1298  Example to connect a 4~~20mA sensor
1299 1299  
1300 1300  We take the wind speed sensor as an example for reference only.
... ... @@ -1310,579 +1310,423 @@
1310 1310  
1311 1311  Connection diagram:
1312 1312  
1313 -[[image:1653357640609-758.png]]
1201 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg]]
1314 1314  
1315 -[[image:1653357648330-671.png||height="155" width="733"]]
1203 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1316 1316  
1317 -=== 3.6.5 Relay Output ===
1318 1318  
1319 -(((
1206 +
1207 +1.
1208 +11.
1209 +111. Relay Output
1210 +
1320 1320  The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
1321 -)))
1322 1322  
1323 -[[image:image-20220524100215-9.png]]
1213 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1324 1324  
1325 -[[image:image-20220524100215-10.png||height="382" width="723"]]
1326 1326  
1327 -== 3.7 LEDs Indicators ==
1216 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1328 1328  
1329 -[[image:image-20220524100748-11.png]]
1330 1330  
1331 -= 4. Use AT Command =
1332 1332  
1333 -== 4.1 Access AT Command ==
1334 1334  
1221 +
1222 +1.
1223 +11. LEDs Indicators
1224 +
1225 +(% border="1" style="background-color:#f7faff" %)
1226 +|**LEDs**|**Feature**
1227 +|**PWR**|Always on if there is power
1228 +|**SYS**|After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
1229 +|**TX**|(((
1230 +Device boot: TX blinks 5 times.
1231 +
1232 +Successful join network: TX ON for 5 seconds.
1233 +
1234 +Transmit a LoRa packet: TX blinks once
1235 +)))
1236 +|**RX**|RX blinks once when receive a packet.
1237 +|**DO1**|
1238 +|**DO2**|
1239 +|**DO3**|
1240 +|**DI2**|(((
1241 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1242 +
1243 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1244 +)))
1245 +|**DI2**|(((
1246 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1247 +
1248 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1249 +)))
1250 +|**DI3**|For LT-33222-L ONLY: ON when DI3 is low, LOW when DI3 is high
1251 +|**DI2**|(((
1252 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1253 +
1254 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1255 +)))
1256 +|**RO1**|
1257 +|**RO2**|
1258 +
1259 +1. Use AT Command
1260 +11. Access AT Command
1261 +
1335 1335  LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
1336 1336  
1337 -[[image:1653358238933-385.png]]
1264 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1338 1338  
1339 -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:
1340 1340  
1341 -[[image:1653358355238-883.png]]
1267 +In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console for LT. The AT commands are disable by default and need to enter password (default:**123456**) to active it. As shown below:
1342 1342  
1269 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1270 +
1271 +
1343 1343  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/]]
1344 1344  
1345 -(((
1346 1346  AT+<CMD>?        : Help on <CMD>
1347 -)))
1348 1348  
1349 -(((
1350 1350  AT+<CMD>         : Run <CMD>
1351 -)))
1352 1352  
1353 -(((
1354 1354  AT+<CMD>=<value> : Set the value
1355 -)))
1356 1356  
1357 -(((
1358 1358  AT+<CMD>=?       : Get the value
1359 -)))
1360 1360  
1361 -(((
1362 1362  ATZ: Trig a reset of the MCU
1363 -)))
1364 1364  
1365 -(((
1366 1366  AT+FDR: Reset Parameters to Factory Default, Keys Reserve 
1367 -)))
1368 1368  
1369 -(((
1370 1370  AT+DEUI: Get or Set the Device EUI
1371 -)))
1372 1372  
1373 -(((
1374 1374  AT+DADDR: Get or Set the Device Address
1375 -)))
1376 1376  
1377 -(((
1378 1378  AT+APPKEY: Get or Set the Application Key
1379 -)))
1380 1380  
1381 -(((
1382 1382  AT+NWKSKEY: Get or Set the Network Session Key
1383 -)))
1384 1384  
1385 -(((
1386 1386  AT+APPSKEY: Get or Set the Application Session Key
1387 -)))
1388 1388  
1389 -(((
1390 1390  AT+APPEUI: Get or Set the Application EUI
1391 -)))
1392 1392  
1393 -(((
1394 1394  AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1395 -)))
1396 1396  
1397 -(((
1398 1398  AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1399 -)))
1400 1400  
1401 -(((
1402 1402  AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1403 -)))
1404 1404  
1405 -(((
1406 1406  AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1407 -)))
1408 1408  
1409 -(((
1410 1410  AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1411 -)))
1412 1412  
1413 -(((
1414 1414  AT+RX2FQ: Get or Set the Rx2 window frequency
1415 -)))
1416 1416  
1417 -(((
1418 1418  AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1419 -)))
1420 1420  
1421 -(((
1422 1422  AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1423 -)))
1424 1424  
1425 -(((
1426 1426  AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1427 -)))
1428 1428  
1429 -(((
1430 1430  AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1431 -)))
1432 1432  
1433 -(((
1434 1434  AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1435 -)))
1436 1436  
1437 -(((
1438 1438  AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1439 -)))
1440 1440  
1441 -(((
1442 1442  AT+NWKID: Get or Set the Network ID
1443 -)))
1444 1444  
1445 -(((
1446 1446  AT+FCU: Get or Set the Frame Counter Uplink
1447 -)))
1448 1448  
1449 -(((
1450 1450  AT+FCD: Get or Set the Frame Counter Downlink
1451 -)))
1452 1452  
1453 -(((
1454 1454  AT+CLASS: Get or Set the Device Class
1455 -)))
1456 1456  
1457 -(((
1458 1458  AT+JOIN: Join network
1459 -)))
1460 1460  
1461 -(((
1462 1462  AT+NJS: Get OTAA Join Status
1463 -)))
1464 1464  
1465 -(((
1466 1466  AT+SENDB: Send hexadecimal data along with the application port
1467 -)))
1468 1468  
1469 -(((
1470 1470  AT+SEND: Send text data along with the application port
1471 -)))
1472 1472  
1473 -(((
1474 1474  AT+RECVB: Print last received data in binary format (with hexadecimal values)
1475 -)))
1476 1476  
1477 -(((
1478 1478  AT+RECV: Print last received data in raw format
1479 -)))
1480 1480  
1481 -(((
1482 1482  AT+VER: Get current image version and Frequency Band
1483 -)))
1484 1484  
1485 -(((
1486 1486  AT+CFM: Get or Set the confirmation mode (0-1)
1487 -)))
1488 1488  
1489 -(((
1490 1490  AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1491 -)))
1492 1492  
1493 -(((
1494 1494  AT+SNR: Get the SNR of the last received packet
1495 -)))
1496 1496  
1497 -(((
1498 1498  AT+RSSI: Get the RSSI of the last received packet
1499 -)))
1500 1500  
1501 -(((
1502 1502  AT+TDC: Get or set the application data transmission interval in ms
1503 -)))
1504 1504  
1505 -(((
1506 1506  AT+PORT: Get or set the application port
1507 -)))
1508 1508  
1509 -(((
1510 1510  AT+DISAT: Disable AT commands
1511 -)))
1512 1512  
1513 -(((
1514 1514  AT+PWORD: Set password, max 9 digits
1515 -)))
1516 1516  
1517 -(((
1518 1518  AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1519 -)))
1520 1520  
1521 -(((
1522 1522  AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1523 -)))
1524 1524  
1525 -(((
1526 1526  AT+CFG: Print all settings
1527 -)))
1528 1528  
1529 -== 4.2 Common AT Command Sequence ==
1530 1530  
1531 -=== 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1532 1532  
1533 -(((
1368 +1.
1369 +11. Common AT Command Sequence
1370 +111. Multi-channel ABP mode (Use with SX1301/LG308)
1371 +
1534 1534  If device has not joined network yet:
1535 -)))
1536 1536  
1537 -(((
1538 -(% style="background-color:#dcdcdc" %)123456
1539 -)))
1374 +123456
1540 1540  
1541 -(((
1542 -(% style="background-color:#dcdcdc" %)AT+FDR
1543 -)))
1376 +AT+FDR
1544 1544  
1545 -(((
1546 -(% style="background-color:#dcdcdc" %)123456
1547 -)))
1378 +123456
1548 1548  
1549 -(((
1550 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1551 -)))
1380 +AT+NJM=0
1552 1552  
1553 -(((
1554 -(% style="background-color:#dcdcdc" %)ATZ
1555 -)))
1382 +ATZ
1556 1556  
1557 1557  
1558 -(((
1559 1559  If device already joined network:
1560 -)))
1561 1561  
1562 -(((
1563 -(% style="background-color:#dcdcdc" %)AT+NJM=0
1564 -)))
1387 +AT+NJM=0
1565 1565  
1566 -(((
1567 -(% style="background-color:#dcdcdc" %)ATZ
1568 -)))
1389 +ATZ
1569 1569  
1570 -=== 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1391 +1.
1392 +11.
1393 +111. Single-channel ABP mode (Use with LG01/LG02)
1571 1571  
1572 -(((
1573 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1574 -)))
1395 +123456   Enter Password to have AT access.
1575 1575  
1576 -(((
1577 -(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1578 -)))
1397 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1579 1579  
1580 -(((
1581 -(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1582 -)))
1399 +123456   Enter Password to have AT access.
1583 1583  
1584 -(((
1585 -(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1586 -)))
1401 +AT+CLASS=C Set to work in CLASS C
1587 1587  
1588 -(((
1589 -(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1590 -)))
1403 +AT+NJM=0 Set to ABP mode
1591 1591  
1592 -(((
1593 -(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off
1594 -)))
1405 +AT+ADR=0 Set the Adaptive Data Rate Off
1595 1595  
1596 -(((
1597 -(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1598 -)))
1407 +AT+DR=5  Set Data Rate
1599 1599  
1600 -(((
1601 -(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1602 -)))
1409 +AT+TDC=60000  Set transmit interval to 60 seconds
1603 1603  
1604 -(((
1605 -(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
1606 -)))
1411 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1607 1607  
1608 -(((
1609 -(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1610 -)))
1413 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1611 1611  
1612 -(((
1613 -(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1614 -)))
1415 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1615 1615  
1616 -(((
1617 -(% 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.
1618 -)))
1417 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1619 1619  
1620 -(((
1621 -(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1622 -)))
1419 +ATZ          Reset MCU
1623 1623  
1624 -(((
1625 -(% style="color:red" %)**Note:**
1626 -)))
1421 +**Note:**
1627 1627  
1628 -(((
1629 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1630 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1631 -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.
1632 -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
1633 -)))
1423 +1. Make sure the device is set to ABP mode in the IoT Server.
1424 +1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1425 +1. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1426 +1. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1634 1634  
1635 -(((
1636 -[[image:1653359097980-169.png||height="188" width="729"]]
1637 -)))
1428 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1638 1638  
1639 -(((
1640 -
1641 -)))
1642 1642  
1643 -=== 4.2.3 Change to Class A ===
1431 +1.
1432 +11.
1433 +111. Change to Class A
1644 1644  
1645 1645  If sensor JOINED
1646 -(% style="background-color:#dcdcdc" %)AT+CLASS=A
1436 +
1437 +AT+CLASS=A
1438 +
1647 1647  ATZ
1648 1648  
1649 -= 5. FAQ =
1650 1650  
1651 -== 5.1 How to upgrade the image? ==
1652 1652  
1443 +
1444 +
1445 +1. FAQ
1446 +
1447 +1.
1448 +11. How to upgrade the image?
1449 +
1653 1653  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1654 1654  
1655 1655  * Support new features
1656 1656  * For bug fix
1657 1657  * Change LoRaWAN bands.
1455 +
1658 1658  Below shows the hardware connection for how to upload an image to the LT:
1659 -* [[image:1653359603330-121.png]]
1660 1660  
1458 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1459 +
1460 +
1661 1661  **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]].
1462 +
1662 1662  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1464 +
1663 1663  **Step3: **Open flashloader; choose the correct COM port to update.
1664 -**For LT-22222-L**:
1665 -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.
1666 1666  
1667 - [[image:image-20220524103407-12.png]]
1467 +**For LT-33222-L**:
1668 1668  
1669 -[[image:image-20220524103429-13.png]]
1469 +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.
1670 1670  
1671 -[[image:image-20220524104033-15.png]]
1471 +**For LT-22222-L**:
1672 1672  
1673 -(% 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:
1473 +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.
1674 1674  
1675 -[[image:1653360054704-518.png||height="186" width="745"]]
1676 1676  
1677 -(((
1678 -(((
1679 -== 5.2 How to change the LoRa Frequency Bands/Region? ==
1680 -)))
1681 -)))
1682 1682  
1683 -(((
1684 -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.
1477 +|(((
1478 +Board detected
1685 1685  )))
1686 1686  
1687 -(((
1688 -== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1481 +|(((
1482 +
1689 1689  )))
1690 1690  
1691 -(((
1692 -(((
1485 +[[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]]
1486 +
1487 +
1488 +
1489 +[[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]]
1490 +
1491 +
1492 +[[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]]
1493 +
1494 +
1495 +**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1496 +
1497 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.png]]
1498 +
1499 +
1500 +1.
1501 +11. How to change the LoRa Frequency Bands/Region?
1502 +
1503 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1504 +
1505 +
1506 +1.
1507 +11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1508 +
1693 1693  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
1694 -)))
1695 -)))
1696 1696  
1697 -(((
1698 -(((
1699 1699  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1700 -)))
1701 -)))
1702 1702  
1703 -(((
1704 -(% 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.
1705 -)))
1706 1706  
1707 -(((
1708 -[[image:1653360231087-571.png||height="401" width="727"]]
1709 -)))
1514 +**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 1710  
1711 -(% 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.
1516 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]
1712 1712  
1713 -(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1518 +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.
1714 1714  
1715 -(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1716 -(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1717 -(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1718 -(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1719 -(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1720 -(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1721 -(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1722 -(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1723 -(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1724 -(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1725 1725  
1521 +**Step2: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1522 +
1523 +123456   Enter Password to have AT access.
1524 +
1525 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1526 +
1527 +123456   Enter Password to have AT access.
1528 +
1529 +AT+NJM=0 Set to ABP mode
1530 +
1531 +AT+ADR=0 Set the Adaptive Data Rate Off
1532 +
1533 +AT+DR=5  Set Data Rate (Set AT+DR=3 for 915 band)
1534 +
1535 +AT+TDC=60000  Set transmit interval to 60 seconds
1536 +
1537 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1538 +
1539 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1
1540 +
1541 +ATZ                Reset MCU
1542 +
1726 1726  As shown in below:
1727 1727  
1728 -[[image:1653360498588-932.png||height="485" width="726"]]
1545 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]
1729 1729  
1730 -== 5.4 Can I see counting event in Serial? ==
1731 1731  
1732 -(((
1548 +
1549 +1.
1550 +11. Can I see counting event in Serial?
1551 +
1733 1733  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.
1734 -)))
1735 1735  
1736 -(((
1737 -= 6. Trouble Shooting =
1738 -)))
1739 1739  
1740 -(((
1741 -(((
1742 -== 6.1 Downlink doesn’t work, how to solve it? ==
1743 -)))
1744 -)))
1745 1745  
1746 -(((
1747 -Please see this link for how to debug:
1748 1748  
1749 -[[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/]]
1750 -)))
1557 +1. Trouble Shooting     
1558 +11. Downlink doesn’t work, how to solve it?
1751 1751  
1752 -(((
1560 +Please see this link for how to debug:
1561 +
1753 1753  [[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]]
1754 -)))
1755 1755  
1756 -(((
1757 -== 6.2 Have trouble to upload image. ==
1758 -)))
1759 1759  
1760 -(((
1565 +1.
1566 +11. Have trouble to upload image.
1567 +
1761 1761  See this link for trouble shooting:
1762 -)))
1763 1763  
1764 -(((
1765 1765  [[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]]
1766 -)))
1767 1767  
1768 -(((
1769 -== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1770 -)))
1771 1771  
1772 -(((
1573 +1.
1574 +11. Why I can’t join TTN in US915 /AU915 bands?
1575 +
1773 1773  It might be about the channels mapping. Please see this link for detail:
1774 -)))
1775 1775  
1776 -(((
1777 1777  [[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]]
1778 -)))
1779 1779  
1780 -(((
1781 -= 7. Order Info =
1782 -)))
1783 1783  
1784 -(((
1785 -(((
1786 -(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1787 -)))
1788 -)))
1789 1789  
1790 -(((
1791 -(((
1792 -(% style="color:#4f81bd" %)**XXX:**
1793 -)))
1794 -)))
1795 1795  
1796 -* (((
1797 -(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1798 -)))
1799 -* (((
1800 -(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1801 -)))
1802 -* (((
1803 -(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1804 -)))
1805 -* (((
1806 -(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1807 -)))
1808 -* (((
1809 -(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1810 -)))
1811 -* (((
1812 -(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1813 -)))
1814 -* (((
1815 -(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1816 -)))
1817 -* (((
1818 -(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1819 -)))
1583 +1. Order Info
1820 1820  
1821 -(((
1822 -* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1585 +**For LT-33222-L-XXX or LT-22222-L-XXX:**
1823 1823  
1824 -= 8. Packing Info =
1825 -)))
1587 +**XXX:**
1826 1826  
1827 -(((
1828 -(((
1589 +* **EU433**: LT with frequency bands EU433
1590 +* **EU868**: LT with frequency bands EU868
1591 +* **KR920**: LT with frequency bands KR920
1592 +* **CN470**: LT with frequency bands CN470
1593 +* **AS923**: LT with frequency bands AS923
1594 +* **AU915**: LT with frequency bands AU915
1595 +* **US915**: LT with frequency bands US915
1596 +* **IN865**: LT with frequency bands IN865
1597 +* **CN779**: LT with frequency bands CN779
1598 +
1599 +1. Packing Info
1600 +
1829 1829  **Package Includes**:
1830 -)))
1831 -)))
1832 1832  
1833 -(((
1834 -(((
1835 -* LT-22222-L I/O Controller x 1
1603 +* LT I/O Controller x 1
1836 1836  * Stick Antenna for LoRa RF part x 1
1837 1837  * Bracket for controller x1
1838 1838  * Program cable x 1
1839 -)))
1840 -)))
1841 1841  
1842 -(((
1843 -(((
1844 1844  **Dimension and weight**:
1845 -)))
1846 -)))
1847 1847  
1848 -(((
1849 -(((
1850 1850  * Device Size: 13.5 x 7 x 3 cm
1851 1851  * Device Weight: 105g
1852 1852  * Package Size / pcs : 14.5 x 8 x 5 cm
1853 1853  * Weight / pcs : 170g
1854 -)))
1855 -)))
1856 1856  
1857 -(((
1858 -= 9. Support =
1859 -)))
1615 +1. Support
1860 1860  
1861 -* (((
1862 -(((
1863 -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.
1864 -)))
1865 -)))
1866 -* (((
1867 -(((
1868 -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
1869 -)))
1870 -)))
1617 +* 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.
1618 +* 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
1871 1871  
1872 -(((
1873 -(((
1874 - [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1875 -)))
1876 -
1877 -(((
1878 -= 10. Reference​​​​​ =
1879 -
1880 -* Product Page:
1881 -
1882 -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]]
1883 -
1884 -* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1885 -* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1886 -* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
1887 -)))
1888 -)))
1620 +[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
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