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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 118.5
edited by Xiaoling
on 2023/05/17 10:51
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To version 137.1
edited by Mengting Qiu
on 2024/09/12 08:51
Change comment: There is no comment for this version

Summary

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Title
... ... @@ -1,1 +1,1 @@
1 -LT-22222-L LoRa IO Controller User Manual
1 +LT-22222-L -- LoRa IO Controller User Manual
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.ting
Content
... ... @@ -3,6 +3,10 @@
3 3  
4 4  
5 5  
6 +
7 +
8 +
9 +
6 6  **Table of Contents:**
7 7  
8 8  {{toc/}}
... ... @@ -53,162 +53,71 @@
53 53  
54 54  )))
55 55  
56 -== 1.2  Specifications ==
60 +== 1.2 Specifications ==
57 57  
58 -(((
59 -
60 -
61 61  (% style="color:#037691" %)**Hardware System:**
62 -)))
63 63  
64 -* (((
65 -STM32L072xxxx MCU
66 -)))
67 -* (((
68 -SX1276/78 Wireless Chip 
69 -)))
70 -* (((
71 -(((
72 -Power Consumption:
73 -)))
64 +* STM32L072xxxx MCU
65 +* SX1276/78 Wireless Chip 
66 +* Power Consumption:
67 +** Idle: 4mA@12v
68 +** 20dB Transmit: 34mA@12v
69 +* Operating Temperature: -40 ~~ 85 Degree, No Dew
74 74  
75 -* (((
76 -Idle: 4mA@12v
77 -)))
78 -* (((
79 -20dB Transmit: 34mA@12v
80 -)))
81 -)))
82 -
83 -(((
84 -
85 -
86 86  (% style="color:#037691" %)**Interface for Model: LT22222-L:**
87 -)))
88 88  
89 -* (((
90 -2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
91 -)))
92 -* (((
93 -2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
94 -)))
95 -* (((
96 -2 x Relay Output (5A@250VAC / 30VDC)
97 -)))
98 -* (((
99 -2 x 0~~20mA Analog Input (res:0.01mA)
100 -)))
101 -* (((
102 -2 x 0~~30V Analog Input (res:0.01v)
103 -)))
104 -* (((
105 -Power Input 7~~ 24V DC. 
106 -)))
73 +* 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with optional external resistor)
74 +* 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
75 +* 2 x Relay Output (5A@250VAC / 30VDC)
76 +* 2 x 0~~20mA Analog Input (res:0.01mA)
77 +* 2 x 0~~30V Analog Input (res:0.01v)
78 +* Power Input 7~~ 24V DC. 
107 107  
108 -(((
109 -
110 -
111 111  (% style="color:#037691" %)**LoRa Spec:**
112 -)))
113 113  
114 -* (((
115 -(((
116 -Frequency Range:
117 -)))
82 +* Frequency Range:
83 +** Band 1 (HF): 862 ~~ 1020 Mhz
84 +** Band 2 (LF): 410 ~~ 528 Mhz
85 +* 168 dB maximum link budget.
86 +* +20 dBm - 100 mW constant RF output vs.
87 +* +14 dBm high efficiency PA.
88 +* Programmable bit rate up to 300 kbps.
89 +* High sensitivity: down to -148 dBm.
90 +* Bullet-proof front end: IIP3 = -12.5 dBm.
91 +* Excellent blocking immunity.
92 +* Low RX current of 10.3 mA, 200 nA register retention.
93 +* Fully integrated synthesizer with a resolution of 61 Hz.
94 +* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
95 +* Built-in bit synchronizer for clock recovery.
96 +* Preamble detection.
97 +* 127 dB Dynamic Range RSSI.
98 +* Automatic RF Sense and CAD with ultra-fast AFC.
99 +* Packet engine up to 256 bytes with CRC.
118 118  
119 -* (((
120 -Band 1 (HF): 862 ~~ 1020 Mhz
121 -)))
122 -* (((
123 -Band 2 (LF): 410 ~~ 528 Mhz
124 -)))
125 -)))
126 -* (((
127 -168 dB maximum link budget.
128 -)))
129 -* (((
130 -+20 dBm - 100 mW constant RF output vs.
131 -)))
132 -* (((
133 -+14 dBm high efficiency PA.
134 -)))
135 -* (((
136 -Programmable bit rate up to 300 kbps.
137 -)))
138 -* (((
139 -High sensitivity: down to -148 dBm.
140 -)))
141 -* (((
142 -Bullet-proof front end: IIP3 = -12.5 dBm.
143 -)))
144 -* (((
145 -Excellent blocking immunity.
146 -)))
147 -* (((
148 -Low RX current of 10.3 mA, 200 nA register retention.
149 -)))
150 -* (((
151 -Fully integrated synthesizer with a resolution of 61 Hz.
152 -)))
153 -* (((
154 -FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
155 -)))
156 -* (((
157 -Built-in bit synchronizer for clock recovery.
158 -)))
159 -* (((
160 -Preamble detection.
161 -)))
162 -* (((
163 -127 dB Dynamic Range RSSI.
164 -)))
165 -* (((
166 -Automatic RF Sense and CAD with ultra-fast AFC.
167 -)))
168 -* (((
169 -Packet engine up to 256 bytes with CRC.
170 -
171 -
172 -
173 -)))
174 -
175 175  == 1.3 Features ==
176 176  
177 -
178 178  * LoRaWAN Class A & Class C protocol
179 -
180 180  * Optional Customized LoRa Protocol
181 -
182 182  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/RU864/IN865/MA869
183 -
184 184  * AT Commands to change parameters
185 -
186 186  * Remote configure parameters via LoRa Downlink
187 -
188 188  * Firmware upgradable via program port
189 -
190 190  * Counting
191 191  
192 -== 1.4  Applications ==
111 +== 1.4 Applications ==
193 193  
194 -
195 195  * Smart Buildings & Home Automation
196 -
197 197  * Logistics and Supply Chain Management
198 -
199 199  * Smart Metering
200 -
201 201  * Smart Agriculture
202 -
203 203  * Smart Cities
204 -
205 205  * Smart Factory
206 206  
207 207  == 1.5 Hardware Variants ==
208 208  
209 209  
210 -(% border="1" style="background-color:#f2f2f2; width:500px" %)
211 -|(% style="background-color:#d9e2f3; color:#0070c0; width:103px" %)**Model**|(% style="background-color:#d9e2f3; color:#0070c0; width:131px" %)**Photo**|(% style="background-color:#d9e2f3; color:#0070c0; width:334px" %)**Description**
123 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:500px" %)
124 +|(% style="background-color:#4f81bd; color:white; width:103px" %)**Model**|(% style="background-color:#4f81bd; color:white; width:131px" %)**Photo**|(% style="background-color:#4f81bd; color:white; width:266px" %)**Description**
212 212  |(% style="width:103px" %)**LT22222-L**|(% style="width:131px" %)(((
213 213  (% style="text-align:center" %)
214 214  [[image:image-20230424115112-1.png||height="106" width="58"]]
... ... @@ -223,17 +223,10 @@
223 223  
224 224  = 2. Power ON Device =
225 225  
226 -
227 -(((
228 228  The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
229 -)))
230 230  
231 -(((
232 232  PWR will on when device is properly powered.
233 233  
234 -
235 -)))
236 -
237 237  [[image:1653297104069-180.png]]
238 238  
239 239  
... ... @@ -292,7 +292,6 @@
292 292  [[image:1653298023685-319.png]]
293 293  
294 294  
295 -
296 296  (((
297 297  (% style="color:blue" %)**Step 2**(%%): Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
298 298  
... ... @@ -308,10 +308,15 @@
308 308  There are five working modes + one interrupt mode on LT for different type application:
309 309  
310 310  * (% style="color:blue" %)**MOD1**(%%): (default setting): 2 x ACI + 2AVI + DI + DO + RO
216 +
311 311  * (% style="color:blue" %)**MOD2**(%%): Double DI Counting + DO + RO
218 +
312 312  * (% style="color:blue" %)**MOD3**(%%): Single DI Counting + 2 x ACI + DO + RO
220 +
313 313  * (% style="color:blue" %)**MOD4**(%%): Single DI Counting + 1 x Voltage Counting + DO + RO
222 +
314 314  * (% style="color:blue" %)**MOD5**(%%): Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
224 +
315 315  * (% style="color:blue" %)**ADDMOD6**(%%): Trigger Mode, Optional, used together with MOD1 ~~ MOD5
316 316  
317 317  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
... ... @@ -320,38 +320,30 @@
320 320  (((
321 321  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default. (% style="display:none" %)
322 322  
323 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
324 -|Size(bytes)(% style="display:none" %) |2|2|2|2|1|1|1
233 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
234 +|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
325 325  |Value|(((
326 -AVI1
327 -voltage
236 +AVI1 voltage
328 328  )))|(((
329 -AVI2
330 -voltage
238 +AVI2 voltage
331 331  )))|(((
332 -ACI1
333 -Current
240 +ACI1 Current
334 334  )))|(((
335 -ACI2
336 -Current
242 +ACI2 Current
337 337  )))|DIDORO*|(((
338 338  Reserve
339 339  )))|MOD
340 340  )))
341 341  
342 -
343 343  (((
344 -
345 -
346 346  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
347 347  
348 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
349 -|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
251 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
252 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
350 350  |RO1|RO2|DI3|DI2|DI1|DO3|DO2|DO1
351 351  )))
352 352  
353 -
354 -* RO is for relay. ROx=1 : close，ROx=0 always open.
256 +* RO is for relay. ROx=1 : close, ROx=0 always open.
355 355  * DI is for digital input. DIx=1: high or float, DIx=0: low.
356 356  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
357 357  
... ... @@ -362,7 +362,7 @@
362 362  
363 363  **The value for the interface is:  **
364 364  
365 -AVI1 channel voltage is 0x04AB/1000=1195（DEC）/1000=1.195V
267 +AVI1 channel voltage is 0x04AB/1000=1195(DEC)/1000=1.195V
366 366  
367 367  AVI2 channel voltage is 0x04AC/1000=1.196V
368 368  
... ... @@ -400,25 +400,21 @@
400 400  (((
401 401  Total : 11 bytes payload
402 402  
403 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
404 -|Size(bytes)|4|4|1|1|1
305 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
306 +|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
405 405  |Value|COUNT1|COUNT2 |DIDORO*|(((
406 -Reserve
407 -
408 -
308 +Reserve
409 409  )))|MOD
410 410  )))
411 411  
412 412  (((
413 -
414 -
415 415  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DO3, DO2 and DO1. Totally 1bytes as below
416 416  
417 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
418 -|bit7|bit6|bit5|bit4|bit3|bit2|bit1|bit0
315 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
316 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
419 419  |RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
420 420  
421 -RO is for relay. ROx=1 : close，ROx=0 always open.
319 +RO is for relay. ROx=1 : close , ROx=0 always open.
422 422  )))
423 423  
424 424  * FIRST: Indicate this is the first packet after join network.
... ... @@ -426,39 +426,32 @@
426 426  
427 427  (((
428 428  (% style="color:red" %)**Note: DO3 bit is not valid for LT-22222-L.**
429 -)))
430 430  
431 -(((
432 432  
329 +)))
433 433  
331 +(((
434 434  **To use counting mode, please run:**
435 435  )))
436 436  
335 +(((
437 437  (% class="box infomessage" %)
438 438  (((
439 -(((
440 -(((
441 441  **AT+MOD=2**
442 -)))
443 443  
444 -(((
445 445  **ATZ**
446 446  )))
447 447  )))
448 -)))
449 449  
450 450  (((
451 451  
452 452  
453 453  (% style="color:#4f81bd" %)**AT Commands for counting:**
454 -
455 -
456 456  )))
457 457  
458 458  (((
459 459  **For LT22222-L:**
460 460  
461 -
462 462  (% style="color:blue" %)**AT+TRIG1=0,100**(%%)**  (set DI1 port to trigger on low level, valid signal is 100ms) **
463 463  
464 464  (% style="color:blue" %)**AT+TRIG1=1,100**(%%)**  (set DI1 port to trigger on high level, valid signal is 100ms ) **
... ... @@ -478,8 +478,8 @@
478 478  
479 479  **LT22222-L**: This mode the DI1 is used as a counting pin.
480 480  
481 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
482 -|Size(bytes)|4|2|2|1|1|1
372 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
373 +|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
483 483  |Value|COUNT1|(((
484 484  ACI1 Current
485 485  )))|(((
... ... @@ -486,17 +486,15 @@
486 486  ACI2 Current
487 487  )))|DIDORO*|Reserve|MOD
488 488  
489 -[[image:image-20220523181246-5.png]]
490 -
491 491  (((
492 -
493 -
494 494  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
382 +
383 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
384 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
385 +|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
495 495  )))
496 496  
497 -[[image:image-20220523181301-6.png]]
498 -
499 -* RO is for relay. ROx=1 : close，ROx=0 always open.
388 +* RO is for relay. ROx=1 : close, ROx=0 always open.
500 500  * FIRST: Indicate this is the first packet after join network.
501 501  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
502 502  
... ... @@ -509,18 +509,14 @@
509 509  **To use counting mode, please run:**
510 510  )))
511 511  
401 +(((
512 512  (% class="box infomessage" %)
513 513  (((
514 -(((
515 -(((
516 516  **AT+MOD=3**
517 -)))
518 518  
519 -(((
520 520  **ATZ**
521 521  )))
522 522  )))
523 -)))
524 524  
525 525  (((
526 526  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -536,55 +536,52 @@
536 536  
537 537  (((
538 538  The AVI1 is also used for counting. AVI1 is used to monitor the voltage. It will check the voltage **every 60s**, if voltage is higher or lower than VOLMAX mV, the AVI1 Counting increase 1, so AVI1 counting can be used to measure a machine working hour.
424 +
425 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
426 +|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**4**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
427 +|Value|COUNT1|AVI1 Counting|DIDORO*|(((
428 +Reserve
429 +)))|MOD
539 539  )))
540 540  
541 -[[image:image-20220523181903-8.png]]
542 -
543 -
544 544  (((
545 545  (% style="color:#4f81bd" %)**DIDORO **(%%)is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
434 +
435 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
436 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
437 +|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
546 546  )))
547 547  
548 -[[image:image-20220523181727-7.png]]
549 -
550 -* RO is for relay. ROx=1 : close，ROx=0 always open.
440 +* RO is for relay. ROx=1 : close, ROx=0 always open.
551 551  * FIRST: Indicate this is the first packet after join network.
552 552  * DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
553 553  
554 554  (((
555 555  (% style="color:red" %)**Note: DO3 is not valid for LT-22222-L.**
556 -)))
557 557  
558 -(((
559 559  
448 +)))
560 560  
450 +(((
561 561  **To use this mode, please run:**
562 562  )))
563 563  
454 +(((
564 564  (% class="box infomessage" %)
565 565  (((
566 -(((
567 -(((
568 568  **AT+MOD=4**
569 -)))
570 570  
571 -(((
572 572  **ATZ**
573 573  )))
574 574  )))
575 -)))
576 576  
577 -
578 578  (((
579 579  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
580 580  )))
581 581  
582 582  (((
583 -
584 -
585 585  **Plus below command for AVI1 Counting:**
586 586  
587 -
588 588  (% style="color:blue" %)**AT+SETCNT=3,60**(%%)**  (set AVI Count to 60)**
589 589  
590 590  (% style="color:blue" %)**AT+VOLMAX=20000**(%%)**  (If AVI1 voltage higher than VOLMAX (20000mV =20v), counter increase 1)**
... ... @@ -600,15 +600,27 @@
600 600  
601 601  **LT22222-L**: This mode the DI1 is used as a counting pin.
602 602  
603 -[[image:image-20220523182334-9.png]]
485 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
486 +|(% style="background-color:#4f81bd; color:white" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**2**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**|(% style="background-color:#4f81bd; color:white" %)**1**
487 +|Value|(((
488 +AVI1 voltage
489 +)))|(((
490 +AVI2 voltage
491 +)))|(((
492 +ACI1 Current
493 +)))|COUNT1|DIDORO*|(((
494 +Reserve
495 +)))|MOD
604 604  
605 605  (((
606 -
607 -
608 608  (% style="color:#4f81bd" %)**DIDORO**(%%) is a combination for RO1, RO2, DI3, DI2, DI1, DO3, DO2 and DO1. Totally 1bytes as below
499 +
500 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
501 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
502 +|RO1|RO2|FIRST|Reserve|Reserve|DO3|DO2|DO1
609 609  )))
610 610  
611 -* RO is for relay. ROx=1 : close，ROx=0 always open.
505 +* RO is for relay. ROx=1 : close, ROx=0 always open.
612 612  * FIRST: Indicate this is the first packet after join network.
613 613  * (((
614 614  DO is for reverse digital output. DOx=1: output low, DOx=0: high or float.
... ... @@ -619,23 +619,17 @@
619 619  )))
620 620  
621 621  (((
622 -
623 -
624 624  **To use this mode, please run:**
625 625  )))
626 626  
519 +(((
627 627  (% class="box infomessage" %)
628 628  (((
629 -(((
630 -(((
631 631  **AT+MOD=5**
632 -)))
633 633  
634 -(((
635 635  **ATZ**
636 636  )))
637 637  )))
638 -)))
639 639  
640 640  (((
641 641  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
... ... @@ -730,12 +730,39 @@
730 730  
731 731  MOD6 Payload : total 11 bytes payload
732 732  
733 -[[image:image-20220524085923-1.png]]
621 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
622 +|(% style="background-color:#4f81bd; color:white; width:60px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:69px" %)**1**|(% style="background-color:#4f81bd; color:white; width:69px" %)**1**|(% style="background-color:#4f81bd; color:white; width:109px" %)**1**|(% style="background-color:#4f81bd; color:white; width:49px" %)**6**|(% style="background-color:#4f81bd; color:white; width:109px" %)**1**|(% style="background-color:#4f81bd; color:white; width:50px" %)**1**
623 +|Value|(((
624 +TRI_A FLAG
625 +)))|(((
626 +TRI_A Status
627 +)))|(((
628 +TRI_DI FLAG+STA
629 +)))|Reserve|Enable/Disable MOD6|(((
630 +MOD(6)
631 +)))
734 734  
735 -
736 736  (% style="color:#4f81bd" %)**TRI FLAG1**(%%) is a combination to show if trigger is set for this part. Totally 1byte as below
737 737  
738 -[[image:image-20220524090106-2.png]]
635 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
636 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
637 +|(((
638 +AV1_LOW
639 +)))|(((
640 +AV1_HIGH
641 +)))|(((
642 +AV2_LOW
643 +)))|(((
644 +AV2_HIGH
645 +)))|(((
646 +AC1_LOW
647 +)))|(((
648 +AC1_HIGH
649 +)))|(((
650 +AC2_LOW
651 +)))|(((
652 +AC2_HIGH
653 +)))
739 739  
740 740  * Each bits shows if the corresponding trigger has been configured.
741 741  
... ... @@ -744,10 +744,27 @@
744 744  10100000: Means the system has configure to use the trigger: AC1_LOW and AV2_LOW
745 745  
746 746  
747 -
748 748  (% style="color:#4f81bd" %)**TRI Status1**(%%) is a combination to show which condition is trigger. Totally 1byte as below
749 749  
750 -[[image:image-20220524090249-3.png]]
664 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
665 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
666 +|(((
667 +AV1_LOW
668 +)))|(((
669 +AV1_HIGH
670 +)))|(((
671 +AV2_LOW
672 +)))|(((
673 +AV2_HIGH
674 +)))|(((
675 +AC1_LOW
676 +)))|(((
677 +AC1_HIGH
678 +)))|(((
679 +AC2_LOW
680 +)))|(((
681 +AC2_HIGH
682 +)))
751 751  
752 752  * Each bits shows which status has been trigger on this uplink.
753 753  
... ... @@ -758,7 +758,9 @@
758 758  
759 759  (% style="color:#4f81bd" %)**TRI_DI FLAG+STA **(%%)is a combination to show which condition is trigger. Totally 1byte as below
760 760  
761 -[[image:image-20220524090456-4.png]]
693 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
694 +|**bit7**|**bit6**|**bit5**|**bit4**|**bit3**|**bit2**|**bit1**|**bit0**
695 +|N/A|N/A|N/A|N/A|DI2_STATUS|DI2_FLAG|DI1_STATUS|DI1_FLAG
762 762  
763 763  * Each bits shows which status has been trigger on this uplink.
764 764  
... ... @@ -838,14 +838,10 @@
838 838  
839 839  Set work mode.
840 840  
841 -* (% style="color:#037691" %)**AT Command:**
775 +* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+MOD=N  **
842 842  
843 -(% style="color:blue" %)**AT+MOD=N  **
844 -
845 -
846 846  **Example**: AT+MOD=2. Set work mode to Double DI counting mode
847 847  
848 -
849 849  * (% style="color:#037691" %)**Downlink Payload (prefix 0x0A):**
850 850  
851 851  (% style="color:blue" %)**0x0A aa  **(%%)** ** ~/~/ Same as AT+MOD=aa
... ... @@ -855,16 +855,12 @@
855 855  ==== 3.4.2.3 Poll an uplink ====
856 856  
857 857  
858 -* (% style="color:#037691" %)**AT Command:**
788 +* (% style="color:#037691" %)**AT Command:**(%%) There is no AT Command to poll uplink
859 859  
860 -There is no AT Command to poll uplink
861 -
862 -
863 863  * (% style="color:#037691" %)**Downlink Payload (prefix 0x08):**
864 864  
865 865  (% style="color:blue" %)**0x08 FF  **(%%)** **~/~/ Poll an uplink
866 866  
867 -
868 868  **Example**: 0x08FF, ask device to send an Uplink
869 869  
870 870  
... ... @@ -874,10 +874,8 @@
874 874  
875 875  Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
876 876  
877 -* (% style="color:#037691" %)**AT Command:**
803 +* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+ADDMOD6=1 or 0**
878 878  
879 -(% style="color:blue" %)**AT+ADDMOD6=1 or 0**
880 -
881 881  (% style="color:red" %)**1:** (%%)Enable Trigger Mode
882 882  
883 883  (% style="color:red" %)**0: **(%%)Disable Trigger Mode
... ... @@ -892,13 +892,12 @@
892 892  ==== 3.4.2.5 Poll trigger settings ====
893 893  
894 894  
895 -Poll trigger settings,
819 +Poll trigger settings
896 896  
897 897  * (% style="color:#037691" %)**AT Command:**
898 898  
899 899  There is no AT Command for this feature.
900 900  
901 -
902 902  * (% style="color:#037691" %)**Downlink Payload (prefix 0x AB 06):**
903 903  
904 904  (% style="color:blue" %)**0xAB 06  ** (%%) ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command
... ... @@ -910,15 +910,11 @@
910 910  
911 911  Enable Disable DI1/DI2/DI2 as trigger,
912 912  
913 -* (% style="color:#037691" %)**AT Command:**
836 +* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
914 914  
915 -(% style="color:blue" %)**Format: AT+DTRI=<DI1_TIRGGER_FlAG>,< DI2_TIRGGER_FlAG >**
838 +**Example:** AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
916 916  
917 917  
918 -**Example:**
919 -
920 -AT+ DTRI =1,0   (Enable DI1 trigger / disable DI2 trigger)
921 -
922 922  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 02):**
923 923  
924 924  (% style="color:blue" %)**0xAA 02 aa bb   ** (%%) ~/~/ Same as AT+DTRI=aa,bb
... ... @@ -930,20 +930,15 @@
930 930  
931 931  Set DI1 or DI3(for LT-33222-L) trigger.
932 932  
933 -* (% style="color:#037691" %)**AT Command:**
852 +* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+TRIG1=a,b**
934 934  
935 -(% style="color:blue" %)**AT+TRIG1=a,b**
936 -
937 937  (% style="color:red" %)**a :** (%%)Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
938 938  
939 939  (% style="color:red" %)**b :** (%%)delay timing.
940 940  
858 +**Example:** AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms )
941 941  
942 -**Example:**
943 943  
944 -AT+TRIG1=1,100(set DI1 port to trigger on high level, valid signal is 100ms )
945 -
946 -
947 947  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 01 ):**
948 948  
949 949  (% style="color:blue" %)**0x09 01 aa bb cc    ** (%%) ~/~/ same as AT+TRIG1=aa,0x(bb cc)
... ... @@ -955,20 +955,15 @@
955 955  
956 956  Set DI2 trigger.
957 957  
958 -* (% style="color:#037691" %)**AT Command:**
872 +* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+TRIG2=a,b**
959 959  
960 -(% style="color:blue" %)**AT+TRIG2=a,b**
961 -
962 962  (% style="color:red" %)**a :** (%%)Interrupt mode. 0: falling edge; 1: rising edge, 2: falling and raising edge(for MOD=1).
963 963  
964 964  (% style="color:red" %)**b :** (%%)delay timing.
965 965  
878 +**Example:** AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
966 966  
967 -**Example:**
968 968  
969 -AT+TRIG2=0,100(set DI1 port to trigger on low level, valid signal is 100ms )
970 -
971 -
972 972  * (% style="color:#037691" %)**Downlink Payload (prefix 0x09 02 ):**
973 973  
974 974  (% style="color:blue" %)**0x09 02 aa bb cc   ** (%%)~/~/ same as AT+TRIG2=aa,0x(bb cc)
... ... @@ -980,11 +980,8 @@
980 980  
981 981  Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
982 982  
983 -* (% style="color:#037691" %)**AT Command**
892 +* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+ACLIM**
984 984  
985 -(% style="color:blue" %)**AT+ACLIM**
986 -
987 -
988 988  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 01 )**
989 989  
990 990  (% style="color:blue" %)**0x AA 01 aa bb cc dd ee ff gg hh        ** (%%) ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
... ... @@ -996,11 +996,8 @@
996 996  
997 997  Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
998 998  
999 -* (% style="color:#037691" %)**AT Command**
905 +* (% style="color:#037691" %)**AT Command**(%%): (% style="color:blue" %)**AT+AVLIM    **(%%)** See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
1000 1000  
1001 -(% style="color:blue" %)**AT+AVLIM    **(%%)** See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
1002 -
1003 -
1004 1004  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAA 00 )**
1005 1005  
1006 1006  (% style="color:blue" %)**0x AA 00 aa bb cc dd ee ff gg hh    ** (%%) ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
... ... @@ -1012,18 +1012,13 @@
1012 1012  
1013 1013  Set AV and AC trigger minimum interval, system won't response to the second trigger within this set time after the first trigger.
1014 1014  
1015 -* (% style="color:#037691" %)**AT Command**
918 +* (% style="color:#037691" %)**AT Command**(%%): (% style="color:blue" %)**AT+ATDC=5        ** ~/~/ (%%)Device won't response the second trigger within 5 minute after the first trigger.
1016 1016  
1017 -(% style="color:blue" %)**AT+ATDC=5        ** (%%)Device won't response the second trigger within 5 minute after the first trigger.
1018 -
1019 -
1020 1020  * (% style="color:#037691" %)**Downlink Payload (prefix 0xAC )**
1021 1021  
1022 1022  (% style="color:blue" %)**0x AC aa bb   **(%%) ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)
1023 1023  
1024 1024  (((
1025 -
1026 -
1027 1027  (% style="color:red" %)**Note: ATDC setting must be more than 5min**
1028 1028  )))
1029 1029  
... ... @@ -1038,8 +1038,9 @@
1038 1038  
1039 1039  
1040 1040  * (% style="color:#037691" %)**Downlink Payload (prefix 0x02)**
1041 -* (% style="color:blue" %)**0x02 aa bb cc     ** (%%)~/~/ Set DO1/DO2/DO3 output
1042 1042  
940 +(% style="color:blue" %)**0x02 aa bb cc     ** (%%)~/~/ Set DO1/DO2/DO3 output
941 +
1043 1043  (((
1044 1044  If payload = 0x02010001, while there is load between V+ and DOx, it means set DO1 to low, DO2 to high and DO3 to low.
1045 1045  )))
... ... @@ -1046,10 +1046,14 @@
1046 1046  
1047 1047  (((
1048 1048  01: Low,  00: High ,  11: No action
948 +
949 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
950 +|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**DO1**|(% style="background-color:#4f81bd; color:white" %)**DO2**|(% style="background-color:#4f81bd; color:white" %)**DO3**
951 +|02  01  00  11|Low|High|No Action
952 +|02  00  11  01|High|No Action|Low
953 +|02  11  01  00|No Action|Low|High
1049 1049  )))
1050 1050  
1051 -[[image:image-20220524092754-5.png]]
1052 -
1053 1053  (((
1054 1054  (% style="color:red" %)**Note: For LT-22222-L, there is no DO3, the last byte can use any value.**
1055 1055  )))
... ... @@ -1086,24 +1086,31 @@
1086 1086  
1087 1087  (% style="color:#4f81bd" %)**Third Byte**(%%): Control Method and Ports status:
1088 1088  
1089 -[[image:image-20220524093238-6.png]]
992 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
993 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
994 +|0x01|DO1 set to low
995 +|0x00|DO1 set to high
996 +|0x11|DO1 NO Action
1090 1090  
1091 -
1092 1092  (% style="color:#4f81bd" %)**Fourth Byte**(%%): Control Method and Ports status:
1093 1093  
1094 -[[image:image-20220524093328-7.png]]
1000 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1001 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1002 +|0x01|DO2 set to low
1003 +|0x00|DO2 set to high
1004 +|0x11|DO2 NO Action
1095 1095  
1096 -
1097 1097  (% style="color:#4f81bd" %)**Fifth Byte**(%%): Control Method and Ports status:
1098 1098  
1099 -[[image:image-20220524093351-8.png]]
1008 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:300px" %)
1009 +|(% style="background-color:#4f81bd; color:white" %)**Second Byte**|(% style="background-color:#4f81bd; color:white" %)**Status**
1010 +|0x01|DO3 set to low
1011 +|0x00|DO3 set to high
1012 +|0x11|DO3 NO Action
1100 1100  
1014 +(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:(%%) Latching time. Unit: ms
1101 1101  
1102 -(% style="color:#4f81bd" %)**Sixth and Seventh and Eighth and Ninth Byte**:
1103 1103  
1104 - Latching time. Unit: ms
1105 -
1106 -
1107 1107  (% style="color:red" %)**Note: **
1108 1108  
1109 1109   Since Firmware v1.6.0, the latch time support 4 bytes and 2 bytes
... ... @@ -1110,7 +1110,6 @@
1110 1110  
1111 1111   Before Firmwre v1.6.0 the latch time only suport 2 bytes.
1112 1112  
1113 -
1114 1114  (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
1115 1115  
1116 1116  
... ... @@ -1134,7 +1134,7 @@
1134 1134  
1135 1135  
1136 1136  
1137 -==== 3.4.2. 14 Relay ~-~- Control Relay Output RO1/RO2 ====
1046 +==== 3.4.2.14 Relay ~-~- Control Relay Output RO1/RO2 ====
1138 1138  
1139 1139  
1140 1140  * (% style="color:#037691" %)**AT Command:**
... ... @@ -1152,11 +1152,18 @@
1152 1152  )))
1153 1153  
1154 1154  (((
1155 -01: Close ,  00: Open , 11: No action
1156 -)))
1064 +00: Close ,  01: Open , 11: No action
1157 1157  
1158 -(((
1159 -[[image:image-20230426161322-1.png]]
1066 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:320px" %)
1067 +|(% style="background-color:#4f81bd; color:white" %)**Downlink Code**|(% style="background-color:#4f81bd; color:white" %)**RO1**|(% style="background-color:#4f81bd; color:white" %)**RO2**
1068 +|03  00  11|Open|No Action
1069 +|03  01  11|Close|No Action
1070 +|03  11  00|No Action|Open
1071 +|03  11  01|No Action|Close
1072 +|03  00  00|Open|Open
1073 +|03  01  01|Close|Close
1074 +|03  01  00|Close|Open
1075 +|03  00  01|Open|Close
1160 1160  )))
1161 1161  
1162 1162  (% style="color:red" %)**Device will upload a packet if downlink code executes successfully.**
... ... @@ -1230,11 +1230,8 @@
1230 1230  
1231 1231  When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1232 1232  
1233 -* (% style="color:#037691" %)**AT Command:**
1149 +* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+VOLMAX   ** (%%)~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1234 1234  
1235 -(% style="color:blue" %)**AT+VOLMAX   ** (%%)~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1236 -
1237 -
1238 1238  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA5):**
1239 1239  
1240 1240  (% style="color:blue" %)**0xA5 aa bb cc   ** (%%)~/~/ Same as AT+VOLMAX=(aa bb),cc
... ... @@ -1244,10 +1244,8 @@
1244 1244  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1245 1245  
1246 1246  
1247 -* (% style="color:#037691" %)**AT Command:**
1160 +* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+SETCNT=aa,(bb cc dd ee) **
1248 1248  
1249 -(% style="color:blue" %)**AT+SETCNT=aa,(bb cc dd ee) **
1250 -
1251 1251  (% style="color:red" %)**aa:**(%%) 1: Set count1; 2: Set count2; 3: Set AV1 count
1252 1252  
1253 1253  (% style="color:red" %)**bb cc dd ee: **(%%)number to be set
... ... @@ -1264,11 +1264,8 @@
1264 1264  
1265 1265  Clear counting for counting mode
1266 1266  
1267 -* (% style="color:#037691" %)**AT Command:**
1178 +* (% style="color:#037691" %)**AT Command:**(%%) (% style="color:blue" %)**AT+CLRCOUNT         **(%%) ~/~/ clear all counting
1268 1268  
1269 -(% style="color:blue" %)**AT+CLRCOUNT **(%%) ~/~/ clear all counting
1270 -
1271 -
1272 1272  * (% style="color:#037691" %)**Downlink Payload (prefix 0xA6):**
1273 1273  
1274 1274  (% style="color:blue" %)**0x A6 01    ** (%%)~/~/ clear all counting
... ... @@ -1420,7 +1420,7 @@
1420 1420  
1421 1421  (% style="color:blue" %)**Step 3**(%%): Create an account or log in Mydevices.
1422 1422  
1423 -(% style="color:blue" %)**Step 4**(%%): Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1331 +(% style="color:blue" %)**Step 4**(%%): Search LT-22222-L(for both LT-22222-L) and add DevEUI.(% style="display:none" %)
1424 1424  
1425 1425  Search under The things network
1426 1426  
... ... @@ -1427,7 +1427,6 @@
1427 1427  [[image:1653356838789-523.png||height="337" width="740"]]
1428 1428  
1429 1429  
1430 -
1431 1431  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1432 1432  
1433 1433  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1459,12 +1459,12 @@
1459 1459  
1460 1460  
1461 1461  (((
1462 -The DI port of LT-22222-L can support NPN or PNP output sensor.
1369 +The DI port of LT-22222-L can support **NPN** or **PNP** or **Dry Contact** output sensor.
1463 1463  )))
1464 1464  
1465 1465  (((
1466 1466  (((
1467 -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.
1374 +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). (% class="mark" %)When there is active current pass NEC2501 pin1 to pin2. The DI will be active high and DI LED status will change.
1468 1468  
1469 1469  
1470 1470  )))
... ... @@ -1572,6 +1572,19 @@
1572 1572  )))
1573 1573  
1574 1574  
1482 +(% style="color:blue" %)**Example4**(%%): Connect to Dry Contact sensor
1483 +
1484 +From above DI ports circuit, we can see that active the photocoupler will need to have a voltage difference between DI+ and DI- port. While the Dry Contact sensor is a passive component which can't provide this voltage difference.
1485 +
1486 +To detect a Dry Contact, we can provide a power source to one pin of the Dry Contact. Below is a reference connection.
1487 +
1488 +[[image:image-20230616235145-1.png]]
1489 +
1490 +(% style="color:blue" %)**Example5**(%%): Connect to Open Colleactor
1491 +
1492 +[[image:image-20240219115718-1.png]]
1493 +
1494 +
1575 1575  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1576 1576  
1577 1577  
... ... @@ -1605,7 +1605,6 @@
1605 1605  
1606 1606  **Black:  GND**
1607 1607  
1608 -
1609 1609  **Connection diagram:**
1610 1610  
1611 1611  [[image:1653357640609-758.png]]
... ... @@ -1613,6 +1613,22 @@
1613 1613  [[image:1653357648330-671.png||height="155" width="733"]]
1614 1614  
1615 1615  
1535 +Example connected to a regulated power supply to measure voltage
1536 +
1537 +[[image:image-20230608101532-1.png||height="606" width="447"]]
1538 +
1539 +[[image:image-20230608101608-2.jpeg||height="379" width="284"]]
1540 +
1541 +[[image:image-20230608101722-3.png||height="102" width="1139"]]
1542 +
1543 +
1544 +(% style="color:blue; font-weight:bold" %)**Specifications of the regulated power**(%%) (% style="color:blue" %)**:**
1545 +
1546 +(% style="color:red" %)**Red:  12~~24v**
1547 +
1548 +**Black:  GND**
1549 +
1550 +
1616 1616  === 3.6.5 Relay Output ===
1617 1617  
1618 1618  
... ... @@ -1631,9 +1631,34 @@
1631 1631  == 3.7 LEDs Indicators ==
1632 1632  
1633 1633  
1634 -[[image:image-20220524100748-11.png]]
1569 +(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
1570 +|(% style="background-color:#4f81bd; color:white; width:50px" %)**LEDs**|(% style="background-color:#4f81bd; color:white; width:460px" %)**Feature**
1571 +|**PWR**|Always on if there is power
1572 +|**TX**|(((
1573 +(((
1574 +Device boot: TX blinks 5 times.
1575 +)))
1635 1635  
1577 +(((
1578 +Successful join network: TX ON for 5 seconds.
1579 +)))
1636 1636  
1581 +(((
1582 +Transmit a LoRa packet: TX blinks once
1583 +)))
1584 +)))
1585 +|**RX**|RX blinks once when receive a packet.
1586 +|**DO1**|For LT-22222-L: ON when DO1 is low, LOW when DO1 is high
1587 +|**DO2**|For LT-22222-L: ON when DO2 is low, LOW when DO2 is high
1588 +|**DI1**|(((
1589 +For LT-22222-L: ON when DI1 is high, LOW when DI1 is low
1590 +)))
1591 +|**DI2**|(((
1592 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1593 +)))
1594 +|**RO1**|For LT-22222-L: ON when RO1 is closed, LOW when RO1 is open
1595 +|**RO2**|For LT-22222-L: ON when RO2 is closed, LOW when RO2 is open
1596 +
1637 1637  = 4. Use AT Command =
1638 1638  
1639 1639  == 4.1 Access AT Command ==
... ... @@ -1643,10 +1643,6 @@
1643 1643  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.
1644 1644  )))
1645 1645  
1646 -(((
1647 -
1648 -)))
1649 -
1650 1650  [[image:1653358238933-385.png]]
1651 1651  
1652 1652  
... ... @@ -1965,8 +1965,6 @@
1965 1965  dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.**
1966 1966  
1967 1967  **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.**
1968 -
1969 -
1970 1970  )))
1971 1971  
1972 1972  (((
... ... @@ -1973,9 +1973,6 @@
1973 1973  [[image:1653359097980-169.png||height="188" width="729"]]
1974 1974  )))
1975 1975  
1976 -(((
1977 -
1978 -)))
1979 1979  
1980 1980  === 4.2.3 Change to Class A ===
1981 1981  
... ... @@ -1983,8 +1983,9 @@
1983 1983  (((
1984 1984  (% style="color:blue" %)**If sensor JOINED:**
1985 1985  
1986 -(% style="background-color:#dcdcdc" %)**AT+CLASS=A
1987 -ATZ**
1937 +(% style="background-color:#dcdcdc" %)**AT+CLASS=A**
1938 +
1939 +(% style="background-color:#dcdcdc" %)**ATZ**
1988 1988  )))
1989 1989  
1990 1990  
... ... @@ -2014,7 +2014,7 @@
2014 2014  
2015 2015  (((
2016 2016  (% style="color:blue" %)**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]].
2017 -(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AADKXQ2v5ZT-S3sxdmbvE7UAa/LT-22222-L/image?dl=0&subfolder_nav_tracking=1]].
1969 +(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACrbrDN0AqLHbBat0ViWx5Da/LT-22222-L/Firmware?dl=0&subfolder_nav_tracking=1]].
2018 2018  (% style="color:blue" %)**Step3**(%%)**:** Open flashloader; choose the correct COM port to update.
2019 2019  
2020 2020  
... ... @@ -2037,7 +2037,6 @@
2037 2037  
2038 2038  (% 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:
2039 2039  
2040 -
2041 2041  [[image:1653360054704-518.png||height="186" width="745"]]
2042 2042  
2043 2043  
... ... @@ -2101,13 +2101,21 @@
2101 2101  
2102 2102  (((
2103 2103  (% style="background-color:#dcdcdc" %)**123456** (%%) :  Enter Password to have AT access.
2055 +
2104 2104  (% style="background-color:#dcdcdc" %)**AT+FDR**(%%)  :  Reset Parameters to Factory Default, Keys Reserve
2057 +
2105 2105  (% style="background-color:#dcdcdc" %)**AT+NJM=0** (%%) :  Set to ABP mode
2059 +
2106 2106  (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) :  Set the Adaptive Data Rate Off
2061 +
2107 2107  (% style="background-color:#dcdcdc" %)**AT+DR=5** (%%) :  Set Data Rate (Set AT+DR=3 for 915 band)
2063 +
2108 2108  (% style="background-color:#dcdcdc" %)**AT+TDC=60000 **(%%) :  Set transmit interval to 60 seconds
2065 +
2109 2109  (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) : Set transmit frequency to 868.4Mhz
2067 +
2110 2110  (% style="background-color:#dcdcdc" %)**AT+DADDR=26 01 1A F1**(%%)  :  Set Device Address to 26 01 1A F1
2069 +
2111 2111  (% style="background-color:#dcdcdc" %)**ATZ**        (%%) :  Reset MCU
2112 2112  )))
2113 2113  
... ... @@ -2119,7 +2119,7 @@
2119 2119  [[image:1653360498588-932.png||height="485" width="726"]]
2120 2120  
2121 2121  
2122 -== 6.4 How to change the uplink interval？ ==
2081 +== 6.4 How to change the uplink interval? ==
2123 2123  
2124 2124  
2125 2125  Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/]]
... ... @@ -2168,6 +2168,12 @@
2168 2168  Firmware version needs to be no less than 1.6.0.
2169 2169  
2170 2170  
2130 +== 6.10 Why does the LT22222 always report 15.585V when measuring AVI? ==
2131 +
2132 +
2133 +It is likely that the GND is not connected during the measurement, or the wire connected to the GND is loose.
2134 +
2135 +
2171 2171  = 7. Trouble Shooting =
2172 2172  )))
2173 2173  
... ... @@ -2208,6 +2208,13 @@
2208 2208  )))
2209 2209  
2210 2210  
2176 +== 7.4 Why can LT22222 perform Uplink normally, but cannot receive Downlink? ==
2177 +
2178 +
2179 +The FCD count of the gateway is inconsistent with the FCD count of the node, causing the downlink to remain in the queue state.
2180 +Use this command to bring their counts back together: [[Resets the downlink packet count>>||anchor="H3.4.2.23Resetsthedownlinkpacketcount"]]
2181 +
2182 +
2211 2211  = 8. Order Info =
2212 2212  
2213 2213  
... ... @@ -2249,7 +2249,7 @@
2249 2249  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.
2250 2250  )))
2251 2251  * (((
2252 -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 [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2224 +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 [[Support@dragino.cc>>mailto:Support@dragino.cc]]
2253 2253  
2254 2254  
2255 2255  
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