Last modified by Edwin Chen on 2022/11/22 09:38
<
From version < 19.2 >
edited by Xiaoling
on 2022/11/15 08:47
To version < 8.2 >
edited by Xiaoling
on 2022/06/02 12:03
>
Change comment: There is no comment for this version

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Title
... ... @@ -1,1 +1,1 @@
1 -Point to Point Communication of LT-22222-L
1 + Point to Point Communication of LT-22222-L
Content
... ... @@ -1,15 +1,10 @@
1 -**Contents： **
2 -
1 +{{box cssClass="floatinginfobox" title="**Contents**"}}
3 3  {{toc/}}
3 +{{/box}}
4 4  
5 -
6 -
7 -
8 8  = **1. Overview** =
9 9  
10 10  (((
11 -
12 -
13 13  Shipped LT-22222-L is base on LoRaWAN protocol. We also develop a open source Point to Point LoRa protocol for LT-22222-L. The source code and hex file can be found at:
14 14  )))
15 15  
... ... @@ -17,18 +17,19 @@
17 17  [[Point to Point Software for LT-22222-L>>https://github.com/dragino/LT-22222-L]].
18 18  )))
19 19  
15 +== ==
20 20  
21 21  = **2. Features for this firmware** =
22 22  
19 +
23 23  == **2.1  Point To Point** ==
24 24  
25 -=== **2.1.1 Overview** ===
26 26  
27 -
28 28  [[image:image-20220602111219-1.png||height="472" width="972"]]
29 29  
30 30  
31 -=== **2.2.2 Configure** ===
26 +(% class="wikigeneratedid" id="H2.2.Configure" %)
27 +(% style="color:blue" %)**Configure:**
32 32  
33 33  
34 34  (% border="1" style="background-color:#f7faff; color:black; width:500px" %)
... ... @@ -45,654 +45,164 @@
45 45  
46 46  
47 47  
48 -=== **2.2.3 Serial port display** ===
44 +== **2.2  Point To Mult-Point ** ==
49 49  
50 50  
51 -(% class="wikigeneratedid" %)
52 52  [[image:image-20220602111219-2.png]]
53 53  
54 54  
55 -(% class="wikigeneratedid" %)
56 56  [[image:image-20220602111219-3.png]]
57 57  
58 -
59 -(% class="wikigeneratedid" %)
60 60  If the sender does not get the ACK reply from the receiver, it will retransmit up to 4 times, each interval is 6 seconds, and the UplinkCounter of the retransmission will not increase.
61 61  
62 62  
63 -== **2.2  Point To Mult-Point ** ==
64 -
65 -=== **2.2.1 Overview** ===
66 -
67 -
68 -[[image:1654152390874-192.png]]
69 -
70 -
71 -=== **2.2.2  Configure** ===
72 -
73 -
74 -(% style="color:blue" %)**Configuration of the TX group:**
75 -
76 -AT+GROUPMOD=0,2
77 -
78 -AT+TXCHS=868700000
79 -
80 -AT+RXCHS=869000000
81 -
82 -AT+TRIG1=2,50
83 -
84 -AT+TRIG2=2,50
85 -
86 -AT+DI1TODO1=1
87 -
88 -AT+DI1TORO1=1
89 -
90 -AT+DI2TODO2=1
91 -
92 -AT+DI2TORO2=1
93 -
94 -
95 -(% style="color:blue" %)**Configuration for RX group number 1:**
96 -
97 -AT+GROUPMOD=1,1
98 -
99 -AT+TXCHS=869000000
100 -
101 -AT+RXCHS=868700000
102 -
103 -
104 -(% style="color:blue" %)**Configuration for RX group number 2:**
105 -
106 -AT+GROUPMOD=1,2
107 -
108 -AT+TXCHS=869000000
109 -
110 -AT+RXCHS=868700000
111 -
112 -
113 -=== **2.2.3 Serial port display** ===
114 -
115 -
116 -[[image:image-20220602144747-1.png]]
117 -
118 -
119 -[[image:image-20220602144747-2.png]]
120 -
121 -(((
122 -If the TX group does not receive all the ACK replies from the RX group, it will retransmit up to 4 times, each time interval is 30 seconds, and the retransmission UplinkCounter will not increase.
123 -)))
124 -
125 -
126 126  == **2.3 AT command** ==
127 127  
128 128  
129 -(((
130 -(% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU
131 -)))
58 +ATZ :  Trig a reset of the MCU
132 132  
133 -(((
134 -(% style="color:#037691" %)**AT+FDR** (%%)**:**  Reset Parameters to Factory Default, Keys Reserve
135 -)))
60 +AT+FDR : Reset Parameters to Factory Default, Keys Reserve
136 136  
137 -(((
138 -(% style="color:#037691" %)**AT+FCU** (%%)**:**  Get or Set the Frame Counter Uplink
139 -)))
62 +AT+FCU : Get or Set the Frame Counter Uplink
140 140  
141 -(((
142 -(% style="color:#037691" %)**AT+FCD** (%%)**:**  Get or Set the Frame Counter Downlink
143 -)))
64 +AT+FCD : Get or Set the Frame Counter Downlink
144 144  
145 -(((
146 -(% style="color:#037691" %)**AT+TXP** (%%)**:**  Get or Set the transmit power, the maximum is 20dBm (default is 14dBm)
147 -)))
66 +AT+TXP : Get or Set the transmit power, the maximum is 20dBm (default is 14dBm)
148 148  
149 -(((
150 -(% style="color:#037691" %)**AT+SYNC** (%%)**:**  Get or Set the Sync word [1:0x34,0:0x12] (default is 1)
151 -)))
68 +AT+SYNC : Get or Set the Sync word [1:0x34,0:0x12] (default is 1)
152 152  
153 -(((
154 -(% style="color:#037691" %)**AT+PMB** (%%)**:    **Get or Set the preamble (default:8)
155 -)))
70 +AT+PMB : Get or Set the preamble (default:8)
156 156  
157 -(((
158 -(% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000)
159 -)))
72 +AT+TXCHS : Get or Set the transmit frequency of TX (default:868700000)
160 160  
161 -(((
162 -(% style="color:#037691" %)**AT+TXSF **(%%)**:**  Get or Set the spreading factor of TX (7 to 12) (default:12)
163 -)))
74 +AT+TXSF : Get or Set the spreading factor of TX (7 to 12) (default:12)
164 164  
165 -(((
166 -(% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000)
167 -)))
76 +AT+RXCHS : Get or Set the transmit frequency of RX (default:869000000)
168 168  
169 -(((
170 -(% style="color:#037691" %)**AT+RXSF **(%%)**:**  Get or Set the spreading factor of RX (7 to 12) (default:12)
171 -)))
78 +AT+RXSF : Get or Set the spreading factor of RX (7 to 12) (default:12)
172 172  
173 -(((
174 -(% style="color:#037691" %)**AT+BW **(%%)**:       **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
175 -)))
80 +AT+BW : Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
176 176  
177 -(((
178 -(% style="color:#037691" %)**AT+CR **(%%)**:        **Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1)
179 -)))
82 +AT+CR : Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1)
180 180  
181 -(((
182 -(% style="color:#037691" %)**AT+TDC **(%%)**:**  Get or set the application data transmission interval in ms(default 10 minutes)
183 -)))
84 +AT+TDC : Get or set the application data transmission interval in ms(default 10 minutes)
184 184  
185 -(((
186 -(% style="color:#037691" %)**AT+VER **(%%)**:**  Get firmware version number
187 -)))
86 +AT+VER : Get firmware version number
188 188  
189 -(((
190 -(% style="color:#037691" %)**AT+SEND **(%%)**:   **Set Custom sent hex data
191 -)))
88 +AT+SEND : Set Custom sent hex data
192 192  
193 -(((
194 -(% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0)
195 -)))
90 +AT+GROUPMOD : Set or Get the grouping mode of the device (default: 0)
196 196  
197 -(((
198 -(((
199 -(% style="color:#037691" %)**AT+GROUPID **(%%)**:      **Set or Get the password for matching between TX group and RX group, which can be composed of numbers or characters (default: 12345678)
200 -)))
201 -)))
92 +AT+GROUPID : Set or Get the password for matching between TX group and RX group, which can be composed of numbers or characters (default: 12345678)
202 202  
203 -(((
204 -(% style="color:#037691" %)**AT+TRIG1 **(%%)**:**  Set or Get the DI1 pin interrupt trigger mode (default 0,0)
205 -)))
94 +AT+TRIG1 : Set or Get the DI1 pin interrupt trigger mode (default 0,0)
206 206  
207 -(((
208 -(% style="color:#037691" %)**AT+TRIG2 **(%%)**:            **Set or Get the DI2 pin interrupt trigger mode (default 0,0)
209 -)))
96 +AT+TRIG2 : Set or Get the DI2 pin interrupt trigger mode (default 0,0)
210 210  
211 -(((
212 -(% style="color:#037691" %)**AT+DI1TODO1 **(%%)**:    **Set or get the mode in which DI1 maps to DO1 (default 0)
213 -)))
98 +AT+DI1TODO1 : Set or get the mode in which DI1 maps to DO1 (default 0)
214 214  
215 -(((
216 -(% style="color:#037691" %)**AT+DI1TORO1 **(%%)**:    **Set or get the mode in which DI1 maps to RO1(default 0)
217 -)))
100 +AT+DI1TORO1 : Set or get the mode in which DI1 maps to RO1(default 0)
218 218  
219 -(((
220 -(% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:**  Set or get the mode in which DI2 maps to DO2(default 0)
221 -)))
102 +AT+DI2TODO2 : Set or get the mode in which DI2 maps to DO2(default 0)
222 222  
223 -(((
224 -(% style="color:#037691" %)**AT+DI2TORO2 **(%%)**:    **Set or get the mode in which DI2 maps to RO2(default 0)
225 -)))
104 +AT+DI2TORO2 : Set or get the mode in which DI2 maps to RO2(default 0)
226 226  
227 227  
228 228  
229 -(((
230 -(% style="color:#4f81bd" %)**Example 1:**
231 -)))
108 +i.g. AT+SEND=01020304 will send a payload of 01020304
232 232  
233 -(((
234 -**AT+SEND=01020304 **will send a payload of 01020304
235 -)))
236 236  
111 +i.g. AT+TRIGx=a  Trigger directly without triggering time
237 237  
113 +AT+TRIGx=a,b  a=0, falling edge;
238 238  
239 -(((
240 -(% style="color:blue" %)**Example 2: **
241 -)))
115 +a=1, rising edge;
242 242  
243 -(((
244 -**AT+TRIGx=a    **Trigger directly without triggering time
245 -)))
117 + a=2, falling edge or rising edge.
246 246  
247 -(((
248 -**AT+TRIGx=a,b**
249 -)))
119 + b, triggering time in milliseconds
250 250  
251 -(((
252 -a=0: falling edge;
253 -)))
121 + AT+TRIGx=2,50  Falling edge or rising edge trigger, and the trigger time exceeds 50ms
254 254  
255 -(((
256 -a=1: rising edge;
257 -)))
258 258  
259 -(((
260 -a=2: falling edge or rising edge;
261 -)))
124 +i.g. AT+DI1TODO1= maps value
262 262  
263 -(((
264 -b:  triggering time in milliseconds.
265 -)))
126 + AT+DI1TORO1= maps value
266 266  
267 -(((
268 -AT+TRIGx=2,50  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
269 -)))
128 +AT+DI2TODO2= maps value
270 270  
130 +AT+DI2TORO2= maps value
271 271  
272 -(((
273 -(% style="color:blue" %)**Example 3: **
274 -)))
275 275  
276 -(((
277 -**AT+DI1TODO1= maps value**
278 -)))
279 279  
280 -(((
281 -**AT+DI1TORO1= maps value**
282 -)))
283 283  
284 -(((
285 -**AT+DI2TODO2= maps value**
286 -)))
287 -
288 -(((
289 -**AT+DI2TORO2= maps value**
290 -)))
291 -
292 -(((
293 -
294 -)))
295 -
296 -(% border="1" style="background-color:#f7faff; color:black; width:706px" %)
297 -|=(% style="width: 102px;" %)(((
298 -Maps value
299 -)))|=(% style="width: 331px;" %)(((
300 -DIx to DOx
301 -)))|=(% style="width: 268px;" %)(((
302 -DIx to ROx
303 -)))
304 -|(% style="width:102px" %)(((
305 -0
306 -)))|(% style="width:331px" %)(((
307 -No Action
308 -)))|(% style="width:268px" %)(((
309 -No Action
310 -)))
311 -|(% style="width:102px" %)(((
312 -1
313 -)))|(% style="width:331px" %)(((
314 -If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level
315 -)))|(% style="width:268px" %)(((
316 -(((
135 +(% style="width:706px" %)
136 +|(% style="width:102px" %)Maps value|(% style="width:331px" %)DIx to DOx|(% style="width:268px" %)DIx to ROx
137 +|(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action
138 +|(% style="width:102px" %)1|(% style="width:331px" %)If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(% style="width:268px" %)(((
317 317  If DIx is high, control ROx to close,
318 -)))
319 319  
320 -(((
321 321  if DIx is low, control ROx to open
322 322  )))
323 -)))
324 -|(% style="width:102px" %)(((
325 -2
326 -)))|(% style="width:331px" %)(((
327 -If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level
328 -)))|(% style="width:268px" %)(((
329 -(((
143 +|(% style="width:102px" %)2|(% style="width:331px" %)If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(% style="width:268px" %)(((
330 330  If DIx is high, control ROx to open,
331 -)))
332 332  
333 -(((
334 334  if DIx is low, control ROx to close
335 335  )))
336 -)))
337 -|(% style="width:102px" %)(((
338 -3
339 -)))|(% style="width:331px" %)(((
340 -DOx state flip
341 -)))|(% style="width:268px" %)(((
342 -ROx state flip
343 -)))
148 +|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip
344 344  
345 -(((
346 -(% style="color:blue" %)**Example 4: **
347 -)))
150 +i.g. AT+GROUPMOD=0  Set to point to point mode
348 348  
349 -(((
350 -**AT+GROUPMOD=0**  Set to point to point mode
351 -)))
152 +AT+GROUPMOD=0,aa  Set the TX group that controls the number of aa (The maximum value of aa is 8)
352 352  
353 -(((
354 -**AT+GROUPMOD=0,aa**  Set the TX group that controls the number of aa (The maximum value of aa is 8)
355 -)))
154 +AT+GROUPMOD=1,bb   Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8)
356 356  
357 357  
358 -(((
359 -**AT+GROUPMOD=1,bb**  Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8)
360 -)))
157 +AT+GROUPMOD=0,2  Set to control the TX group of the two RX groups
361 361  
159 +AT+GROUPMOD=1,1  Set the RX group numbered 1
362 362  
363 -(((
364 -**AT+GROUPMOD=0,2**  Set to control the TX group of the two RX groups
365 -)))
161 +AT+GROUPMOD=1,2  Set the RX group numbered 2
366 366  
367 -(((
368 -**AT+GROUPMOD=1,1**  Set the RX group numbered 1
369 -)))
370 370  
371 -(((
372 -**AT+GROUPMOD=1,2**  Set the RX group numbered 2
373 -)))
374 374  
375 -
376 -=== 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3) ===
377 -
378 -
379 -**AT+TRIGx=a     **Trigger transmit directly without triggering time
380 -
381 -**AT+TRIGx=a,b**  Trigger transmit with triggering time threshold
382 -
383 -**AT+TRIGx=a,b,c **Trigger transmit with triggering time threshold, and continue to transmit every xx seconds if DI status no change.
384 -
385 -
386 -a=0: falling edge;
387 -
388 -a=1: rising edge;
389 -
390 -a=2: falling edge or rising edge;
391 -
392 -b:  triggering time in milliseconds.
393 -
394 -c: transmit interval
395 -
396 -
397 -**(% style="color:blue" %)Use Case 1**(%%): Once the DI1 port status change ( either from low to high or high to low, LT1 sends a trigger to LT-2)
398 -
399 -Command:
400 -
401 -AT+TRIG1=2,50  Falling edge or rising edge trigger, and the trigger time should exceed 50ms.
402 -
403 -
404 -**(% style="color:blue" %)Use Case 2: **(%%)Sync LT2 RO / DO status with LT1 every minute.
405 -
406 -Command:
407 -
408 -AT+TRIG2=2,50,60 Once there is falling edge or rising edge on DI2 of LT1, LT1 will transmit trigger to LT2 and LT2 can sync the status of RO/DO.
409 -
410 -
411 -=== 2.3.2 RO/DO is configured in the receiver LT (LT2)(Since firmware 1.3) ===
412 -
413 -AT+DI1TODO1= maps value[,latch time]
414 -
415 -AT+DI1TORO1= maps value[,latch time]
416 -
417 -AT+DI2TODO2= maps value[,latch time]
418 -
419 -AT+DI2TORO2= maps value[,latch time]
420 -
421 -
422 -(% border="1" style="background-color:#f7faff; color:black; width:706px" %)
423 -| **Maps value**|DIx to DOx|DIx to ROx
424 -|0|No Action|No Action
425 -|1|If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(((
426 -If DIx is high, control ROx to close,
427 -
428 -if DIx is low, control ROx to open
429 -)))
430 -|2|If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(((
431 -If DIx is high, control ROx to open,
432 -
433 -if DIx is low, control ROx to close
434 -)))
435 -|3|DOx state flip|ROx state flip
436 -
437 -latch time, if latch time is defined, DO or RO will go back to the original status after latch time, if there is a new trigger comes, the LT2 will use the new latch time settings and ignore the old one.
438 -
439 -
440 -**(% style="color:blue" %)Case1**:
441 -
442 -AT+DI1TODO1=1 ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, if DI1 of LT1 is trigger high, DO1 of LT2 will output low, if DI1 of LT1 is trigger low, DO2 of LT2 will output high.
443 -
444 -
445 -**(% style="color:blue" %)Case2**:
446 -
447 -AT+DI1TODO1=1,60 ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, DO1 will keep the status 60 seconds and then go back to original state.
448 -
449 -
450 -=== 2.3.3 Save the RO/DO status during power off(Since firmware 1.3) ===
451 -
452 -
453 -Enable/Disbale retain Digital Output/Relay Output after power off / Power On
454 -
455 -AT+DOROSAVE=0 ~/~/ Disable Retain after power off/on
456 -
457 -AT+DOROSAVE=1 ~/~/ Enable Retain after power off/on
458 -
459 -AT+DOROSAVE=2,a,b,c,d ~/~/ set DO/RO port to default state after power on.
460 -
461 -a: for DO1
462 -
463 -b: for DO2
464 -
465 -c: for RO1
466 -
467 -d: for RO2.
468 -
469 -Example:
470 -
471 -AT+DOROSAVE=2,0,0,0,1 ~/~/ Set DO1/DO2 to Low, RO1 to open after power on , set RO2 to close after power on.
472 -
473 -
474 -=== 2.3.4 Control Sleep status.(Since firmware 1.3) ===
475 -
476 -DI2 can be used to set LT into sleep mode.
477 -
478 -AT+DI2SLEEP=1 ~/~/Enable DI2 as Sleep pin
479 -
480 -AT+DI2SLEEP=0 ~/~/Disable DI2 as Sleep pin
481 -
482 -When DI2 is enabled as sleep pin, a falling trigger (with 500ms pulse) will set LT into sleep mode. A raising trigger will wake up it again.
483 -
484 -
485 485  == **2.4 Data Format** ==
486 486  
487 -
488 -(((
489 489  8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum
490 -)))
491 491  
492 -(((
493 -
494 -)))
495 495  
496 -(((
497 -(% style="color:blue" %)**Payload:**
498 -)))
170 +Payload:
499 499  
500 -(% border="1" style="background-color:#f7faff; color:black; width:938px" %)
501 -|=(% style="width: 123px;" %)(((
502 -**Size (bytes)**
503 -)))|=(% style="width: 107px;" %)(((
504 -1
505 -)))|=(% style="width: 107px;" %)(((
506 -1
507 -)))|=(% style="width: 107px;" %)(((
508 -1
509 -)))|=(% style="width: 107px;" %)(((
510 -1
511 -)))|=(% style="width: 107px;" %)(((
512 -1
513 -)))|=(% style="width: 107px;" %)(((
514 -1
515 -)))|=(% style="width: 107px;" %)(((
516 -1
517 -)))|=(% style="width: 107px;" %)(((
518 -1
519 -)))|=(% style="width: 107px;" %)(((
520 -1
521 -)))
522 -|(% style="width:123px" %)(((
523 -**Value**
524 -)))|(% style="width:38px" %)(((
525 -address
526 -)))|(% style="width:70px" %)(((
527 -request
528 -)))|(% style="width:52px" %)(((
529 -ACK
530 -)))|(% style="width:127px" %)(((
531 -(((
172 +|**Size (bytes)**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|**1**
173 +|**Value**|(% colspan="2" %)address|(% colspan="2" %)request|(% colspan="2" %)ACK|(% colspan="2" %)(((
532 532  DI1&
533 -)))
534 534  
535 -(((
536 536  DI1 level
537 -)))
538 -)))|(% style="width:101px" %)(((
539 -DI1TODO1
540 -)))|(% style="width:91px" %)(((
541 -DI1TORO1
542 -)))|(% style="width:111px" %)(((
543 -(((
177 +)))|DI1TODO1
178 +|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)
179 +|(% colspan="2" %)DI1TORO1|(% colspan="2" %)(((
544 544  DI2&
545 -)))
546 546  
547 -(((
548 548  DI2 level
549 -)))
550 -)))|(% style="width:105px" %)(((
551 -DI2TODO2
552 -)))|(% style="width:106px" %)(((
553 -DI2TORO2
554 -)))
183 +)))|(% colspan="2" %)DI2TODO2|(% colspan="2" %)DI2TORO2|(% colspan="2" %)
184 +| | | | | | | | | |
555 555  
556 -(((
557 -(% style="color:#037691" %)**The first byte**(%%)**:**  00 is the broadcast address, 01-08 is the RX group number.
558 -)))
186 +The first byte: 00 is the broadcast address, 01-08 is the RX group number
559 559  
560 -(((
561 -(% style="color:#037691" %)**The second byte**(%%)**:**  send mapping request when not 0, not request when it is 0.
562 -)))
188 +The second byte: send mapping request when not 0, not request when it is 0
563 563  
564 -(((
565 -(% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
566 -)))
190 +The third byte: ACK returned to the sender after the mapping is completed
567 567  
568 -(((
569 -(((
570 -(% style="color:#037691" %)**The fourth byte**(%%)**:**  the high four bits are 1 to represent DI1, and the low four bits are the level of DI1 when the interrupt is triggered.
571 -)))
572 -)))
192 +The fourth byte: the high four bits are 1 to represent DI1, and the low four bits are the level of DI1 when the interrupt is triggered
573 573  
574 -(((
575 -(% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
576 -)))
194 +The Fifth byte: DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered
577 577  
578 -(((
579 -(% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
580 -)))
196 +The Sixth byte: 0 does not trigger interrupt when DI1TORO1 interrupt is triggered
581 581  
582 -(((
583 -(((
584 -(% style="color:#037691" %)**The seventh byte**(%%)**:**  the high four bits are 2 to represent DI2, and the low four bits are the level of DI2 when the interrupt is triggered.
585 -)))
586 -)))
198 +The seventh byte: the high four bits are 2 to represent DI2, and the low four bits are the level of DI2 when the interrupt is triggered
587 587  
588 -(((
589 -(% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
590 -)))
200 +The 8th byte: DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered
591 591  
592 -(((
593 -(% style="color:#037691" %)**The 9th byte**(%%)**:**  DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered.
594 -)))
202 +The 9th byte: DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered
595 595  
596 -(((
597 597  
598 -
599 -(% style="color:#4f81bd" %)**Payload:（Since firmware 1.3）The receiver replies to the sent packet**
600 -)))
601 -
602 -(% border="1" style="background-color:#f7faff; color:black; width:938px" %)
603 -|=(% style="width: 123px;" %)(((
604 -**Size (bytes)**
605 -)))|=(% style="width: 107px;" %)(((
606 -1
607 -)))|=(% style="width: 107px;" %)(((
608 -1
609 -)))|=(% style="width: 107px;" %)(((
610 -1
611 -)))|=(% style="width: 107px;" %)(((
612 -1
613 -)))|=(% style="width: 107px;" %)(((
614 -1
615 -)))|=(% style="width: 107px;" %)(((
616 -1
617 -)))|=(% style="width: 107px;" %)(((
618 -1
619 -)))|=(% style="width: 107px;" %)(((
620 -1
621 -)))|=(% style="width: 107px;" %)(((
622 -1
623 -)))
624 -|(% style="width:123px" %)(((
625 -**Value**
626 -)))|(% style="width:38px" %)(((
627 -address
628 -)))|(% style="width:70px" %)(((
629 -request
630 -)))|(% style="width:52px" %)(((
631 -ACK
632 -)))|(% style="width:127px" %)(((
633 -(((
634 -DO1&
635 -)))
636 -
637 -(((
638 -DO1 level
639 -)))
640 -)))|(% style="width:101px" %)(((
641 -DI1TODO1
642 -)))|(% style="width:91px" %)(((
643 -DI1TORO1
644 -)))|(% style="width:111px" %)(((
645 -(((
646 -RO2&
647 -)))
648 -
649 -(((
650 -RO2 level
651 -)))
652 -)))|(% style="width:105px" %)(((
653 -DI2TODO2
654 -)))|(% style="width:106px" %)(((
655 -DI2TORO2
656 -)))
657 -
658 -(((
659 -(% style="color:#037691" %)**The first byte**(%%)**:**  00 is the broadcast address, 01-08 is the RX group number.
660 -)))
661 -
662 -(((
663 -(% style="color:#037691" %)**The second byte**(%%)**:**  send mapping request when not 0, not request when it is 0.
664 -)))
665 -
666 -(((
667 -(% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
668 -)))
669 -
670 -(((
671 -(((
672 -(% style="color:#037691" %)**The fourth byte**(%%)**:**  the high four bits are 1 to represent DO1, and the low four bits are the level of DO1 when the interrupt is triggered.
673 -)))
674 -)))
675 -
676 -(((
677 -(% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
678 -)))
679 -
680 -(((
681 -(% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
682 -)))
683 -
684 -(((
685 -(((
686 -(% style="color:#037691" %)**The seventh byte**(%%)**:**  the high four bits are 2 to represent RO2, and the low four bits are the level of RO2 when the interrupt is triggered.
687 -)))
688 -)))
689 -
690 -(((
691 -(% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
692 -)))
693 -
694 -(((
695 -(% style="color:#037691" %)**The 9th byte**(%%)**:**  DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered.
696 -)))
697 -
698 -
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