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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 33.1
edited by Xiaoling
on 2022/05/24 09:38
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To version 66.24
edited by Xiaoling
on 2022/05/24 13:58
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Summary

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... ... @@ -45,44 +45,114 @@
45 45  
46 46  == 1.2  Specifications ==
47 47  
48 +(((
48 48  **Hardware System:**
50 +)))
49 49  
50 -* STM32L072CZT6 MCU
51 -* SX1276/78 Wireless Chip 
52 -* Power Consumption:
53 -** Idle: 4mA@12v
54 -** 20dB Transmit: 34mA@12v
52 +* (((
53 +STM32L072CZT6 MCU
54 +)))
55 +* (((
56 +SX1276/78 Wireless Chip 
57 +)))
58 +* (((
59 +(((
60 +Power Consumption:
61 +)))
55 55  
63 +* (((
64 +Idle: 4mA@12v
65 +)))
66 +* (((
67 +20dB Transmit: 34mA@12v
68 +)))
69 +)))
70 +
71 +(((
56 56  **Interface for Model: LT22222-L:**
73 +)))
57 57  
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. 
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 +)))
64 64  
94 +(((
65 65  **LoRa Spec:**
96 +)))
66 66  
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.
98 +* (((
99 +(((
100 +Frequency Range:
101 +)))
85 85  
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 +
86 86  == 1.3 Features ==
87 87  
88 88  * LoRaWAN Class A & Class C protocol
... ... @@ -129,13 +129,21 @@
129 129  
130 130  == 3.1 How it works? ==
131 131  
202 +(((
132 132  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 +)))
133 133  
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.
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 +)))
135 135  
210 +(((
136 136  3.2 Example to join LoRaWAN network
212 +)))
137 137  
214 +(((
138 138  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 +)))
139 139  
140 140  [[image:image-20220523172350-1.png||height="266" width="864"]]
141 141  
... ... @@ -235,7 +235,9 @@
235 235  
236 236  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
237 237  
316 +(((
238 238  Total : 11 bytes payload
318 +)))
239 239  
240 240  [[image:image-20220523180452-3.png]]
241 241  
... ... @@ -249,53 +249,77 @@
249 249  * FIRST: Indicate this is the first packet after join network.
250 250  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
251 251  
332 +(((
252 252  (% style="color:red" %)Note: DO3 bit is not valid for LT-22222-L.
334 +)))
253 253  
336 +(((
254 254  **To use counting mode, please run:**
338 +)))
255 255  
256 256  (% class="box infomessage" %)
257 257  (((
342 +(((
258 258  **AT+MOD=2**
259 259  )))
345 +)))
260 260  
261 261  (% class="box infomessage" %)
262 262  (((
349 +(((
263 263  **ATZ**
264 264  )))
352 +)))
265 265  
354 +(((
266 266  (% style="color:#4f81bd" %)**AT Commands for counting:**
356 +)))
267 267  
358 +(((
268 268  **For LT22222-L:**
360 +)))
269 269  
270 270  (% class="box infomessage" %)
271 271  (((
364 +(((
272 272  **AT+TRIG1=0,100 (set DI1 port to trigger on low level, valid signal is 100ms) **
273 273  )))
367 +)))
274 274  
275 275  (% class="box infomessage" %)
276 276  (((
371 +(((
277 277  **AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms ) **
278 278  )))
374 +)))
279 279  
280 280  (% class="box infomessage" %)
281 281  (((
378 +(((
282 282  **AT+TRIG2=0,100 (set DI2 port to trigger on low level, valid signal is 100ms) **
283 283  )))
381 +)))
284 284  
285 285  (% class="box infomessage" %)
286 286  (((
385 +(((
287 287  **AT+TRIG2=1,100 (set DI2 port to trigger on high level, valid signal is 100ms ) **
288 288  )))
388 +)))
289 289  
290 290  (% class="box infomessage" %)
291 291  (((
392 +(((
292 292  **AT+SETCNT=1,60   (Set COUNT1 value to 60)**
293 293  )))
395 +)))
294 294  
295 295  (% class="box infomessage" %)
296 296  (((
399 +(((
297 297  **AT+SETCNT=2,60   (Set COUNT2 value to 60)**
298 298  )))
402 +)))
299 299  
300 300  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
301 301  
... ... @@ -313,21 +313,31 @@
313 313  * FIRST: Indicate this is the first packet after join network.
314 314  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
315 315  
420 +(((
316 316  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
422 +)))
317 317  
424 +(((
318 318  **To use counting mode, please run:**
426 +)))
319 319  
320 320  (% class="box infomessage" %)
321 321  (((
430 +(((
322 322  **AT+MOD=3**
323 323  )))
433 +)))
324 324  
325 325  (% class="box infomessage" %)
326 326  (((
437 +(((
327 327  **ATZ**
328 328  )))
440 +)))
329 329  
330 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
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 +)))
331 331  
332 332  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
333 333  
... ... @@ -347,44 +347,67 @@
347 347  * FIRST: Indicate this is the first packet after join network.
348 348  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
349 349  
464 +(((
350 350  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
466 +)))
351 351  
468 +(((
352 352  **To use this mode, please run:**
470 +)))
353 353  
354 354  (% class="box infomessage" %)
355 355  (((
474 +(((
356 356  **AT+MOD=4**
357 357  )))
477 +)))
358 358  
359 359  (% class="box infomessage" %)
360 360  (((
481 +(((
361 361  **ATZ**
362 362  )))
484 +)))
363 363  
486 +(((
487 +
488 +)))
364 364  
365 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
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 +)))
366 366  
494 +(((
367 367  **Plus below command for AVI1 Counting:**
496 +)))
368 368  
369 369  (% class="box infomessage" %)
370 370  (((
500 +(((
371 371  **AT+SETCNT=3,60   (set AVI Count to 60)**
372 372  )))
503 +)))
373 373  
374 374  (% class="box infomessage" %)
375 375  (((
507 +(((
376 376  **AT+VOLMAX=20000   (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
377 377  )))
510 +)))
378 378  
379 379  (% class="box infomessage" %)
380 380  (((
514 +(((
381 381  **AT+VOLMAX=20000,0   (If AVI1 voltage lower than VOLMAX (20000mV =20v), counter increase 1)**
382 382  )))
517 +)))
383 383  
384 384  (% class="box infomessage" %)
385 385  (((
521 +(((
386 386  **AT+VOLMAX=20000,1   (If AVI1 voltage higer than VOLMAX (20000mV =20v), counter increase 1)**
387 387  )))
524 +)))
388 388  
389 389  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
390 390  
... ... @@ -398,23 +398,35 @@
398 398  
399 399  * RO is for relay. ROx=1 : close，ROx=0 always open.
400 400  * FIRST: Indicate this is the first packet after join network.
401 -* DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
538 +* (((
539 +DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
540 +)))
402 402  
542 +(((
403 403  (% style="color:red" %)Note: DO3 is not valid for LT-22222-L.
544 +)))
404 404  
546 +(((
405 405  **To use this mode, please run:**
548 +)))
406 406  
407 407  (% class="box infomessage" %)
408 408  (((
552 +(((
409 409  **AT+MOD=5**
410 410  )))
555 +)))
411 411  
412 412  (% class="box infomessage" %)
413 413  (((
559 +(((
414 414  **ATZ**
415 415  )))
562 +)))
416 416  
417 -Other AT Commands for counting are similar to [[MOD2 Counting Command>>path:#COUNT_COMMAND]].
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 +)))
418 418  
419 419  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
420 420  
... ... @@ -463,7 +463,7 @@
463 463  
464 464  **Downlink Command to set Trigger Condition**
465 465  
466 -Type Code: 0xAA. Downlink command same as AT Command [[AT+AVLIM, AT+ACLIM>>path:#AT_Trigger]]
615 +Type Code: 0xAA. Downlink command same as AT Command **AT+AVLIM, AT+ACLIM**
467 467  
468 468  Format: AA xx yy1 yy1 yy2 yy2 yy3 yy3 yy4 yy4
469 469  
... ... @@ -483,7 +483,7 @@
483 483  
484 484  Same as AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
485 485  
486 -Example2: AA 02 01 00
635 +**Example2**: AA 02 01 00
487 487  
488 488  Same as AT+ DTRI =1,0  (Enable DI1 trigger / disable DI2 trigger)
489 489  
... ... @@ -845,11 +845,7 @@
845 845  
846 846  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
847 847  
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
997 +[[image:image-20220524093351-8.png]]
853 853  
854 854  (% style="color:#4f81bd" %)**Sixth and Seventh Byte**:
855 855  
... ... @@ -857,147 +857,129 @@
857 857  
858 858  Device will upload a packet if downlink code executes successfully.
859 859  
1005 +**Example payload:**
860 860  
1007 +**~1. A9 01 01 01 01 07 D0**
861 861  
862 -Example payload:
863 -
864 -1. A9 01 01 01 01 07 D0
865 -
866 866  DO1 pin & DO2 pin & DO3 pin will be set to Low, last 2 seconds, then change back to original state.
867 867  
1011 +**2. A9 01 00 01 11 07 D0**
868 868  
869 -1. A9 01 00 01 11 07 D0
870 -
871 871  DO1 pin set high, DO2 pin set low, DO3 pin no action, last 2 seconds, then change back to original state.
872 872  
1015 +**3. A9 00 00 00 00 07 D0**
873 873  
874 -1. A9 00 00 00 00 07 D0
875 -
876 876  DO1 pin & DO2 pin & DO3 pin will be set to high, last 2 seconds, then both change to low.
877 877  
1019 +**4. A9 00 11 01 00 07 D0**
878 878  
879 -1. A9 00 11 01 00 07 D0
880 -
881 881  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
882 882  
883 883  
1024 +=== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ===
884 884  
885 -
886 -==== Relay ~-~- Control Relay Output RO1/RO2 ====
887 -
888 888  * AT Command:
889 889  
890 890  There is no AT Command to control Relay Output
891 891  
892 -
893 893  * Downlink Payload (prefix 0x03):
894 894  
895 -0x03 aa bb     ~/~/ Set RO1/RO2 output
1032 +(% class="box infomessage" %)
1033 +(((
1034 +**0x03 aa bb     ~/~/ Set RO1/RO2 output**
1035 +)))
896 896  
1037 +(((
897 897  If payload = 0x030100, it means set RO1 to close and RO2 to open.
1039 +)))
898 898  
1041 +(((
899 899  01: Close ,  00: Open , 11: No action
1043 +)))
900 900  
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
1045 +(((
1046 +[[image:image-20220524093724-9.png]]
1047 +)))
911 911  
912 912  Device will upload a packet if downlink code executes successfully.
913 913  
914 914  
915 -==== Relay ~-~- Control Relay Output RO1/RO2 with time control ====
1052 +==== 3.4.2.15 Relay ~-~- Control Relay Output RO1/RO2 with time control ====
916 916  
917 917  * AT Command:
918 918  
919 919  There is no AT Command to control Relay Output
920 920  
921 -
922 922  * Downlink Payload (prefix 0x05):
923 923  
924 -0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:
1060 +(% class="box infomessage" %)
1061 +(((
1062 +**0x05 aa bb cc dd     ~/~/ Set RO1/RO2 relay with time control:**
1063 +)))
925 925  
926 926  This is to control the relay output time of relay. Include four bytes:
927 927  
928 -**First Byte:** Type code (0x05)
1067 +(% style="color:#4f81bd" %)**First Byte **(%%)**:** Type code (0x05)
929 929  
930 -**Second Byte(aa)**: Inverter Mode
1069 +(% style="color:#4f81bd" %)**Second Byte(aa)**(%%): Inverter Mode
931 931  
932 932  01: Relays will change back to original state after timeout.
933 933  
934 934  00: Relays will change to an inverter state after timeout
935 935  
1075 +(% style="color:#4f81bd" %)**Third Byte(bb)**(%%): Control Method and Ports status:
936 936  
937 -**Third Byte(bb)**: Control Method and Ports status:
1077 +[[image:image-20220524093831-10.png]]
938 938  
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
1079 +(% style="color:#4f81bd" %)**Fourth/Fifth Bytes(cc)**(%%): Latching time. Unit: ms
949 949  
950 -**Fourth / Fifth Bytes (cc)**: Latching time. Unit: ms
951 -
952 952  Device will upload a packet if downlink code executes successfully.
953 953  
954 -
955 -
956 956  **Example payload:**
957 957  
958 -1. 05 01 11 07 D0
1085 +**~1. 05 01 11 07 D0**
959 959  
960 960  Relay1 and Relay 2 will be set to NO , last 2 seconds, then change back to original state.
961 961  
1089 +**2. 05 01 10 07 D0**
962 962  
963 -1. 05 01 10 07 D0
964 -
965 965  Relay1 will change to NO, Relay2 will change to NC, last 2 seconds, then both change back to original state.
966 966  
1093 +**3. 05 00 01 07 D0**
967 967  
968 -1. 05 00 01 07 D0
969 -
970 970  Relay1 will change to NC, Relay2 will change to NO, last 2 seconds, then relay change to NO, Relay2 change to NC.
971 971  
1097 +**4. 05 00 00 07 D0**
972 972  
973 -1. 05 00 00 07 D0
974 -
975 975  Relay 1 & relay2 will change to NC, last 2 seconds, then both change to NO.
976 976  
977 977  
1102 +==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
978 978  
1104 +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]]
979 979  
980 -
981 -
982 -==== Counting ~-~- Voltage threshold counting ====
983 -
984 -When voltage exceed the threshold, count. Feature see [[MOD4>>path:#MOD4]]
985 -
986 986  * AT Command:
987 987  
988 -AT+VOLMAX    ~/~/ See [[MOD4>>path:#MOD4]]
1108 +(% class="box infomessage" %)
1109 +(((
1110 +**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]]**
1111 +)))
989 989  
990 -
991 991  * Downlink Payload (prefix 0xA5):
992 992  
993 -0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc
1115 +(% class="box infomessage" %)
1116 +(((
1117 +**0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1118 +)))
994 994  
1120 +==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
995 995  
996 -==== Counting ~-~- Pre-configure the Count Number ====
997 -
998 998  * AT Command:
999 999  
1000 -AT+SETCNT=aa,(bb cc dd ee)
1124 +(% class="box infomessage" %)
1125 +(((
1126 +**AT+SETCNT=aa,(bb cc dd ee) **
1127 +)))
1001 1001  
1002 1002  aa: 1: Set count1,
1003 1003  
... ... @@ -1007,115 +1007,109 @@
1007 1007  
1008 1008  Bb cc dd ee: number to be set
1009 1009  
1010 -
1011 1011  * Downlink Payload (prefix 0xA8):
1012 1012  
1013 -0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)
1139 +(% class="box infomessage" %)
1140 +(((
1141 +**0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1142 +)))
1014 1014  
1144 +==== 3.4.2.18 Counting ~-~- Clear Counting ====
1015 1015  
1016 -
1017 -
1018 -
1019 -==== Counting ~-~- Clear Counting ====
1020 -
1021 1021  Clear counting for counting mode
1022 1022  
1023 1023  * AT Command:
1024 1024  
1025 -AT+CLRCOUNT ~/~/ clear all counting
1150 +(% class="box infomessage" %)
1151 +(((
1152 +**AT+CLRCOUNT ~/~/ clear all counting**
1153 +)))
1026 1026  
1027 -
1028 1028  * Downlink Payload (prefix 0xA6):
1029 1029  
1030 -0x A6 01     ~/~/ clear all counting,
1157 +(% class="box infomessage" %)
1158 +(((
1159 +**0x A6 01     ~/~/ clear all counting,**
1160 +)))
1031 1031  
1162 +==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1032 1032  
1033 -
1034 -
1035 -==== Counting ~-~- Change counting mode save time ====
1036 -
1037 1037  * AT Command:
1038 1038  
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)
1166 +(% class="box infomessage" %)
1167 +(((
1168 +**AT+COUTIME=60  ~/~/ Set save time to 60 seconds. Device will save the counting result in internal flash every 60 seconds. (min value: 30)**
1169 +)))
1040 1040  
1041 -
1042 1042  * Downlink Payload (prefix 0xA7):
1043 1043  
1044 -0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,
1173 +(% class="box infomessage" %)
1174 +(((
1175 +**0x A7 aa bb cc     ~/~/ same as AT+COUTIME =aa bb cc,**
1176 +)))
1045 1045  
1046 1046  range: aa bb cc:0 to 16777215,  (unit:second)
1047 1047  
1180 +== 3.5 Integrate with Mydevice ==
1048 1048  
1049 -
1050 -
1051 -1.
1052 -11. Integrate with Mydevice
1053 -
1054 1054  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:
1055 1055  
1184 +**Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1056 1056  
1057 -Step 1: Be sure that your device is programmed and properly connected to the network at this time.
1186 +**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:
1058 1058  
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:
1188 +[[image:1653356737703-362.png||height="232" width="732"]]
1060 1060  
1190 +[[image:image-20220524094641-11.png||height="390" width="723"]]
1061 1061  
1062 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
1063 1063  
1193 +[[image:image-20220524094641-12.png||height="402" width="718"]]
1064 1064  
1065 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
1195 +**Step 3**: Create an account or log in Mydevices.
1066 1066  
1197 +**Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1067 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 -
1076 1076  Search under The things network
1077 1077  
1078 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
1201 +[[image:1653356838789-523.png||height="337" width="740"]]
1079 1079  
1080 -
1081 1081  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1082 1082  
1083 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
1205 +[[image:image-20220524094909-1.png||height="335" width="729"]]
1084 1084  
1207 +[[image:image-20220524094909-2.png||height="337" width="729"]]
1085 1085  
1086 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
1209 +[[image:image-20220524094909-3.png||height="338" width="727"]]
1087 1087  
1211 +[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1088 1088  
1089 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
1213 +[[image:image-20220524094909-5.png||height="341" width="734"]]
1090 1090  
1215 +== 3.6 Interface Detail ==
1091 1091  
1092 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
1217 +=== 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1093 1093  
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 -
1102 1102  Support NPN Type sensor
1103 1103  
1104 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
1221 +[[image:1653356991268-289.png]]
1105 1105  
1223 +=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1106 1106  
1107 -
1108 -1.
1109 -11.
1110 -111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
1111 -
1225 +(((
1112 1112  The DI port of LT-22222-L can support NPN or PNP output sensor.
1227 +)))
1113 1113  
1229 +(((
1230 +(((
1114 1114  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
1232 +)))
1233 +)))
1115 1115  
1116 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
1235 +[[image:1653357170703-587.png]]
1117 1117  
1237 +(((
1118 1118  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1239 +)))
1119 1119  
1120 1120  
1121 1121  **Example1**: Connect to a Low active sensor.
... ... @@ -1125,11 +1125,11 @@
1125 1125  * Connect sensor’s output to DI1-
1126 1126  * Connect sensor’s VCC to DI1+.
1127 1127  
1128 -So when sensor active, the current between NEC2501 pin1 and pin2 is:
1249 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1129 1129  
1130 - //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1251 + //IF// = DI1+ / 1K.
1131 1131  
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.
1253 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1133 1133  
1134 1134  
1135 1135  **Example2**: Connect to a High active sensor.
... ... @@ -1141,12 +1141,12 @@
1141 1141  
1142 1142  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1143 1143  
1144 - //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1265 +[[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.**
1145 1145  
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.
1267 +If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/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.
1147 1147  
1148 1148  
1149 -**Example3**: Connect to a 220v high active sensor.公司测试一下
1270 +**Example3**: Connect to a 220v high active sensor.
1150 1150  
1151 1151  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1152 1152  
... ... @@ -1155,34 +1155,24 @@
1155 1155  
1156 1156  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1157 1157  
1158 - //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 51K.
1279 + [[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.**
1159 1159  
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.
1281 +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.
1161 1161  
1283 +=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1162 1162  
1163 -1.
1164 -11.
1165 -111. Digital Output Port: DO1/DO2 /DO3
1166 -
1167 1167  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1168 1168  
1169 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1287 +[[image:1653357531600-905.png]]
1170 1170  
1289 +=== 3.6.4 Analog Input Interface ===
1171 1171  
1172 -
1173 -
1174 -1.
1175 -11.
1176 -111. Analog Input Interface
1177 -
1178 1178  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:
1179 1179  
1180 -AC2 = (IN2 voltage )/12
1293 +**AC2 = (IN2 voltage )/12**
1181 1181  
1182 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
1295 +[[image:1653357592296-182.png]]
1183 1183  
1184 -
1185 -
1186 1186  Example to connect a 4~~20mA sensor
1187 1187  
1188 1188  We take the wind speed sensor as an example for reference only.
... ... @@ -1198,423 +1198,579 @@
1198 1198  
1199 1199  Connection diagram:
1200 1200  
1201 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg]]
1312 +[[image:1653357640609-758.png]]
1202 1202  
1203 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1314 +[[image:1653357648330-671.png||height="155" width="733"]]
1204 1204  
1316 +=== 3.6.5 Relay Output ===
1205 1205  
1206 -
1207 -1.
1208 -11.
1209 -111. Relay Output
1210 -
1318 +(((
1211 1211  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:
1320 +)))
1212 1212  
1213 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1322 +[[image:image-20220524100215-9.png]]
1214 1214  
1324 +[[image:image-20220524100215-10.png||height="382" width="723"]]
1215 1215  
1216 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1326 +== 3.7 LEDs Indicators ==
1217 1217  
1328 +[[image:image-20220524100748-11.png]]
1218 1218  
1330 += 4. Use AT Command =
1219 1219  
1332 +== 4.1 Access AT Command ==
1220 1220  
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 -
1262 1262  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.
1263 1263  
1264 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1336 +[[image:1653358238933-385.png]]
1265 1265  
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:
1266 1266  
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:
1340 +[[image:1653358355238-883.png]]
1268 1268  
1269 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1270 -
1271 -
1272 1272  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/]]
1273 1273  
1344 +(((
1274 1274  AT+<CMD>?        : Help on <CMD>
1346 +)))
1275 1275  
1348 +(((
1276 1276  AT+<CMD>         : Run <CMD>
1350 +)))
1277 1277  
1352 +(((
1278 1278  AT+<CMD>=<value> : Set the value
1354 +)))
1279 1279  
1356 +(((
1280 1280  AT+<CMD>=?       : Get the value
1358 +)))
1281 1281  
1360 +(((
1282 1282  ATZ: Trig a reset of the MCU
1362 +)))
1283 1283  
1364 +(((
1284 1284  AT+FDR: Reset Parameters to Factory Default, Keys Reserve 
1366 +)))
1285 1285  
1368 +(((
1286 1286  AT+DEUI: Get or Set the Device EUI
1370 +)))
1287 1287  
1372 +(((
1288 1288  AT+DADDR: Get or Set the Device Address
1374 +)))
1289 1289  
1376 +(((
1290 1290  AT+APPKEY: Get or Set the Application Key
1378 +)))
1291 1291  
1380 +(((
1292 1292  AT+NWKSKEY: Get or Set the Network Session Key
1382 +)))
1293 1293  
1384 +(((
1294 1294  AT+APPSKEY: Get or Set the Application Session Key
1386 +)))
1295 1295  
1388 +(((
1296 1296  AT+APPEUI: Get or Set the Application EUI
1390 +)))
1297 1297  
1392 +(((
1298 1298  AT+ADR: Get or Set the Adaptive Data Rate setting. (0: off, 1: on)
1394 +)))
1299 1299  
1396 +(((
1300 1300  AT+TXP: Get or Set the Transmit Power (0-5, MAX:0, MIN:5, according to LoRaWAN Spec)
1398 +)))
1301 1301  
1400 +(((
1302 1302  AT+DR: Get or Set the Data Rate. (0-7 corresponding to DR_X)  
1402 +)))
1303 1303  
1404 +(((
1304 1304  AT+DCS: Get or Set the ETSI Duty Cycle setting - 0=disable, 1=enable - Only for testing
1406 +)))
1305 1305  
1408 +(((
1306 1306  AT+PNM: Get or Set the public network mode. (0: off, 1: on)
1410 +)))
1307 1307  
1412 +(((
1308 1308  AT+RX2FQ: Get or Set the Rx2 window frequency
1414 +)))
1309 1309  
1416 +(((
1310 1310  AT+RX2DR: Get or Set the Rx2 window data rate (0-7 corresponding to DR_X)
1418 +)))
1311 1311  
1420 +(((
1312 1312  AT+RX1DL: Get or Set the delay between the end of the Tx and the Rx Window 1 in ms
1422 +)))
1313 1313  
1424 +(((
1314 1314  AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms
1426 +)))
1315 1315  
1428 +(((
1316 1316  AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms
1430 +)))
1317 1317  
1432 +(((
1318 1318  AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms
1434 +)))
1319 1319  
1436 +(((
1320 1320  AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA)
1438 +)))
1321 1321  
1440 +(((
1322 1322  AT+NWKID: Get or Set the Network ID
1442 +)))
1323 1323  
1444 +(((
1324 1324  AT+FCU: Get or Set the Frame Counter Uplink
1446 +)))
1325 1325  
1448 +(((
1326 1326  AT+FCD: Get or Set the Frame Counter Downlink
1450 +)))
1327 1327  
1452 +(((
1328 1328  AT+CLASS: Get or Set the Device Class
1454 +)))
1329 1329  
1456 +(((
1330 1330  AT+JOIN: Join network
1458 +)))
1331 1331  
1460 +(((
1332 1332  AT+NJS: Get OTAA Join Status
1462 +)))
1333 1333  
1464 +(((
1334 1334  AT+SENDB: Send hexadecimal data along with the application port
1466 +)))
1335 1335  
1468 +(((
1336 1336  AT+SEND: Send text data along with the application port
1470 +)))
1337 1337  
1472 +(((
1338 1338  AT+RECVB: Print last received data in binary format (with hexadecimal values)
1474 +)))
1339 1339  
1476 +(((
1340 1340  AT+RECV: Print last received data in raw format
1478 +)))
1341 1341  
1480 +(((
1342 1342  AT+VER: Get current image version and Frequency Band
1482 +)))
1343 1343  
1484 +(((
1344 1344  AT+CFM: Get or Set the confirmation mode (0-1)
1486 +)))
1345 1345  
1488 +(((
1346 1346  AT+CFS: Get confirmation status of the last AT+SEND (0-1)
1490 +)))
1347 1347  
1492 +(((
1348 1348  AT+SNR: Get the SNR of the last received packet
1494 +)))
1349 1349  
1496 +(((
1350 1350  AT+RSSI: Get the RSSI of the last received packet
1498 +)))
1351 1351  
1500 +(((
1352 1352  AT+TDC: Get or set the application data transmission interval in ms
1502 +)))
1353 1353  
1504 +(((
1354 1354  AT+PORT: Get or set the application port
1506 +)))
1355 1355  
1508 +(((
1356 1356  AT+DISAT: Disable AT commands
1510 +)))
1357 1357  
1512 +(((
1358 1358  AT+PWORD: Set password, max 9 digits
1514 +)))
1359 1359  
1516 +(((
1360 1360  AT+CHS: Get or Set Frequency (Unit: Hz) for Single Channel Mode
1518 +)))
1361 1361  
1520 +(((
1362 1362  AT+CHE: Get or Set eight channels mode, Only for US915, AU915, CN470
1522 +)))
1363 1363  
1524 +(((
1364 1364  AT+CFG: Print all settings
1526 +)))
1365 1365  
1528 +== 4.2 Common AT Command Sequence ==
1366 1366  
1530 +=== 4.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1367 1367  
1368 -1.
1369 -11. Common AT Command Sequence
1370 -111. Multi-channel ABP mode (Use with SX1301/LG308)
1371 -
1532 +(((
1372 1372  If device has not joined network yet:
1534 +)))
1373 1373  
1374 -123456
1536 +(((
1537 +(% style="background-color:#dcdcdc" %)123456
1538 +)))
1375 1375  
1376 -AT+FDR
1540 +(((
1541 +(% style="background-color:#dcdcdc" %)AT+FDR
1542 +)))
1377 1377  
1378 -123456
1544 +(((
1545 +(% style="background-color:#dcdcdc" %)123456
1546 +)))
1379 1379  
1380 -AT+NJM=0
1548 +(((
1549 +(% style="background-color:#dcdcdc" %)AT+NJM=0
1550 +)))
1381 1381  
1382 -ATZ
1552 +(((
1553 +(% style="background-color:#dcdcdc" %)ATZ
1554 +)))
1383 1383  
1384 1384  
1557 +(((
1385 1385  If device already joined network:
1559 +)))
1386 1386  
1387 -AT+NJM=0
1561 +(((
1562 +(% style="background-color:#dcdcdc" %)AT+NJM=0
1563 +)))
1388 1388  
1389 -ATZ
1565 +(((
1566 +(% style="background-color:#dcdcdc" %)ATZ
1567 +)))
1390 1390  
1391 -1.
1392 -11.
1393 -111. Single-channel ABP mode (Use with LG01/LG02)
1569 +=== 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
1394 1394  
1395 -123456   Enter Password to have AT access.
1571 +(((
1572 +(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1573 +)))
1396 1396  
1397 -AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1575 +(((
1576 +(% style="background-color:#dcdcdc" %) AT+FDR(%%)   Reset Parameters to Factory Default, Keys Reserve
1577 +)))
1398 1398  
1399 -123456   Enter Password to have AT access.
1579 +(((
1580 +(% style="background-color:#dcdcdc" %) 123456(%%)   Enter Password to have AT access.
1581 +)))
1400 1400  
1401 -AT+CLASS=C Set to work in CLASS C
1583 +(((
1584 +(% style="background-color:#dcdcdc" %) AT+CLASS=C(%%) Set to work in CLASS C
1585 +)))
1402 1402  
1403 -AT+NJM=0 Set to ABP mode
1587 +(((
1588 +(% style="background-color:#dcdcdc" %) AT+NJM=0(%%) Set to ABP mode
1589 +)))
1404 1404  
1405 -AT+ADR=0 Set the Adaptive Data Rate Off
1591 +(((
1592 +(% style="background-color:#dcdcdc" %) AT+ADR=0(%%) Set the Adaptive Data Rate Off
1593 +)))
1406 1406  
1407 -AT+DR=5  Set Data Rate
1595 +(((
1596 +(% style="background-color:#dcdcdc" %) AT+DR=5(%%)  Set Data Rate
1597 +)))
1408 1408  
1409 -AT+TDC=60000  Set transmit interval to 60 seconds
1599 +(((
1600 +(% style="background-color:#dcdcdc" %) AT+TDC=60000(%%)  Set transmit interval to 60 seconds
1601 +)))
1410 1410  
1411 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1603 +(((
1604 +(% style="background-color:#dcdcdc" %) AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
1605 +)))
1412 1412  
1413 -AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1607 +(((
1608 +(% style="background-color:#dcdcdc" %) AT+RX2FQ=868400000(%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1609 +)))
1414 1414  
1415 -AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1611 +(((
1612 +(% style="background-color:#dcdcdc" %) AT+RX2DR=5(%%)  Set RX2DR to match the downlink DR from server. see below
1613 +)))
1416 1416  
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.
1615 +(((
1616 +(% 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.
1617 +)))
1418 1418  
1419 -ATZ          Reset MCU
1619 +(((
1620 +(% style="background-color:#dcdcdc" %) ATZ         (%%) Reset MCU
1621 +)))
1420 1420  
1421 -**Note:**
1623 +(((
1624 +(% style="color:red" %)**Note:**
1625 +)))
1422 1422  
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
1627 +(((
1628 +(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1629 +2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1630 +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.
1631 +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
1632 +)))
1427 1427  
1428 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]]
1634 +(((
1635 +[[image:1653359097980-169.png||height="188" width="729"]]
1636 +)))
1429 1429  
1638 +(((
1639 +
1640 +)))
1430 1430  
1431 -1.
1432 -11.
1433 -111. Change to Class A
1642 +=== 4.2.3 Change to Class A ===
1434 1434  
1435 1435  If sensor JOINED
1436 -
1437 -AT+CLASS=A
1438 -
1645 +(% style="background-color:#dcdcdc" %)AT+CLASS=A
1439 1439  ATZ
1440 1440  
1648 += 5. FAQ =
1441 1441  
1650 +== 5.1 How to upgrade the image? ==
1442 1442  
1443 -
1444 -
1445 -1. FAQ
1446 -
1447 -1.
1448 -11. How to upgrade the image?
1449 -
1450 1450  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
1451 1451  
1452 1452  * Support new features
1453 1453  * For bug fix
1454 1454  * Change LoRaWAN bands.
1455 -
1456 1456  Below shows the hardware connection for how to upload an image to the LT:
1658 +* [[image:1653359603330-121.png]]
1457 1457  
1458 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1459 -
1460 -
1461 1461  **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 -
1463 1463  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1464 -
1465 1465  **Step3: **Open flashloader; choose the correct COM port to update.
1663 +**For LT-22222-L**:
1664 +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.
1466 1466  
1467 -**For LT-33222-L**:
1666 + [[image:image-20220524103407-12.png]]
1468 1468  
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.
1668 +[[image:image-20220524103429-13.png]]
1470 1470  
1471 -**For LT-22222-L**:
1670 +[[image:image-20220524104033-15.png]]
1472 1472  
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.
1672 +(% 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:
1474 1474  
1674 +[[image:1653360054704-518.png||height="186" width="745"]]
1475 1475  
1676 +(((
1677 +(((
1678 +== 5.2 How to change the LoRa Frequency Bands/Region? ==
1679 +)))
1680 +)))
1476 1476  
1477 -|(((
1478 -Board detected
1682 +(((
1683 +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.
1479 1479  )))
1480 1480  
1481 -|(((
1482 -
1686 +(((
1687 +== 5.3 How to set up LT to work with Single Channel Gateway such as LG01/LG02? ==
1483 1483  )))
1484 1484  
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 -
1690 +(((
1691 +(((
1509 1509  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
1693 +)))
1694 +)))
1510 1510  
1696 +(((
1697 +(((
1511 1511  Assume we have a LG02 working in the frequency 868400000 now , below is the step.
1699 +)))
1700 +)))
1512 1512  
1702 +(((
1703 +(% 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.
1704 +)))
1513 1513  
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.
1706 +(((
1707 +[[image:1653360231087-571.png||height="401" width="727"]]
1708 +)))
1515 1515  
1516 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image039.png]]
1710 +(% 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.
1517 1517  
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.
1712 +(% style="color:#4f81bd" %)**Step2**(%%)**: **Run AT Command to make LT work in Single frequency & ABP mode. Below is the AT commands:
1519 1519  
1714 +(% style="background-color:#dcdcdc" %)123456 (%%) Enter Password to have AT access.
1715 +(% style="background-color:#dcdcdc" %)AT+FDR  (%%) Reset Parameters to Factory Default, Keys Reserve
1716 +(% style="background-color:#dcdcdc" %)123456  (%%) Enter Password to have AT access.
1717 +(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
1718 +(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
1719 +(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate (Set AT+DR=3 for 915 band)
1720 +(% style="background-color:#dcdcdc" %)AT+TDC=60000  (%%)Set transmit interval to 60 seconds
1721 +(% style="background-color:#dcdcdc" %)AT+CHS=868400000 (%%)Set transmit frequency to 868.4Mhz
1722 +(% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%) Set Device Address to 26 01 1A F1
1723 +(% style="background-color:#dcdcdc" %)ATZ                (%%)Reset MCU
1520 1520  
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 -
1543 1543  As shown in below:
1544 1544  
1545 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.png]]
1727 +[[image:1653360498588-932.png||height="485" width="726"]]
1546 1546  
1729 +== 5.4 Can I see counting event in Serial? ==
1547 1547  
1548 -
1549 -1.
1550 -11. Can I see counting event in Serial?
1551 -
1731 +(((
1552 1552  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.
1733 +)))
1553 1553  
1735 +(((
1736 += 6. Trouble Shooting =
1737 +)))
1554 1554  
1739 +(((
1740 +(((
1741 +== 6.1 Downlink doesn’t work, how to solve it? ==
1742 +)))
1743 +)))
1555 1555  
1556 -
1557 -1. Trouble Shooting     
1558 -11. Downlink doesn’t work, how to solve it?
1559 -
1745 +(((
1560 1560  Please see this link for how to debug:
1561 1561  
1748 +[[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/]]
1749 +)))
1750 +
1751 +(((
1562 1562  [[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]]
1753 +)))
1563 1563  
1755 +(((
1756 +== 6.2 Have trouble to upload image. ==
1757 +)))
1564 1564  
1565 -1.
1566 -11. Have trouble to upload image.
1567 -
1759 +(((
1568 1568  See this link for trouble shooting:
1761 +)))
1569 1569  
1763 +(((
1570 1570  [[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]]
1765 +)))
1571 1571  
1767 +(((
1768 +== 6.3 Why I can’t join TTN in US915 /AU915 bands? ==
1769 +)))
1572 1572  
1573 -1.
1574 -11. Why I can’t join TTN in US915 /AU915 bands?
1575 -
1771 +(((
1576 1576  It might be about the channels mapping. Please see this link for detail:
1773 +)))
1577 1577  
1775 +(((
1578 1578  [[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]]
1777 +)))
1579 1579  
1779 +(((
1780 += 7. Order Info =
1781 +)))
1580 1580  
1783 +(((
1784 +(((
1785 +(% style="color:#4f81bd" %)**LT-22222-L-XXX:**
1786 +)))
1787 +)))
1581 1581  
1789 +(((
1790 +(((
1791 +(% style="color:#4f81bd" %)**XXX:**
1792 +)))
1793 +)))
1582 1582  
1583 -1. Order Info
1795 +* (((
1796 +(% style="color:#4f81bd" %)**EU433**(%%): LT with frequency bands EU433
1797 +)))
1798 +* (((
1799 +(% style="color:#4f81bd" %)**EU868**(%%): LT with frequency bands EU868
1800 +)))
1801 +* (((
1802 +(% style="color:#4f81bd" %)**KR920**(%%): LT with frequency bands KR920
1803 +)))
1804 +* (((
1805 +(% style="color:#4f81bd" %)**CN470**(%%): LT with frequency bands CN470
1806 +)))
1807 +* (((
1808 +(% style="color:#4f81bd" %)**AS923**(%%): LT with frequency bands AS923
1809 +)))
1810 +* (((
1811 +(% style="color:#4f81bd" %)**AU915**(%%): LT with frequency bands AU915
1812 +)))
1813 +* (((
1814 +(% style="color:#4f81bd" %)**US915**(%%): LT with frequency bands US915
1815 +)))
1816 +* (((
1817 +(% style="color:#4f81bd" %)**IN865**(%%): LT with frequency bands IN865
1818 +)))
1584 1584  
1585 -**For LT-33222-L-XXX or LT-22222-L-XXX:**
1820 +(((
1821 +* (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
1586 1586  
1587 -**XXX:**
1823 += 8. Packing Info =
1824 +)))
1588 1588  
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 -
1826 +(((
1827 +(((
1601 1601  **Package Includes**:
1829 +)))
1830 +)))
1602 1602  
1603 -* LT I/O Controller x 1
1832 +(((
1833 +(((
1834 +* LT-22222-L I/O Controller x 1
1604 1604  * Stick Antenna for LoRa RF part x 1
1605 1605  * Bracket for controller x1
1606 1606  * Program cable x 1
1838 +)))
1839 +)))
1607 1607  
1841 +(((
1842 +(((
1608 1608  **Dimension and weight**:
1844 +)))
1845 +)))
1609 1609  
1847 +(((
1848 +(((
1610 1610  * Device Size: 13.5 x 7 x 3 cm
1611 1611  * Device Weight: 105g
1612 1612  * Package Size / pcs : 14.5 x 8 x 5 cm
1613 1613  * Weight / pcs : 170g
1853 +)))
1854 +)))
1614 1614  
1615 -1. Support
1856 +(((
1857 += 9. Support =
1858 +)))
1616 1616  
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
1860 +* (((
1861 +(((
1862 +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.
1863 +)))
1864 +)))
1865 +* (((
1866 +(((
1867 +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
1868 +)))
1869 +)))
1619 1619  
1620 -[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1871 +(((
1872 +(((
1873 + [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1874 +)))
1875 +
1876 +(((
1877 += 10. Reference​​​​​ =
1878 +
1879 +* Product Page:
1880 +
1881 +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]]
1882 +
1883 +* [[Image Download>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]
1884 +* [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1885 +* [[Hardware Source>>url:https://github.com/dragino/Lora/tree/master/LT/LT-33222-L/v1.0]]
1886 +)))
1887 +)))
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