Last modified by Edwin Chen on 2022/11/22 09:38
<
From version < 19.3 >
edited by Xiaoling
on 2022/11/15 09:02
To version < 8.8 >
edited by Xiaoling
on 2022/06/02 14:22
>
Change comment: There is no comment for this version

Summary

Details

Page properties
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 -**Table of Contents： **
2 -
1 +{{box cssClass="floatinginfobox" title="**Contents**"}}
3 3  {{toc/}}
3 +{{/box}}
4 4  
5 += **1. Overview** =
5 5  
6 -
7 -
8 -= 1. Overview =
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  
... ... @@ -17,668 +17,195 @@
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 -= 2. Features for this firmware =
17 += **2. Features for this firmware** =
22 22  
23 -== 2.1  Point To Point ==
24 24  
25 -=== 2.1.1 Overview ===
20 +== **2.1  Point To Point** ==
26 26  
27 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 -(% border="1" style="background-color:#f7faff; color:black; width:360px" %)
35 -|=(% style="width: 179px;" %)**A's configuration**|=(% style="width: 177px;" %)**B's configuration**
36 -|(% style="width:179px" %)AT+GROUPMOD=0|(% style="width:177px" %)AT+GROUPMOD=0
37 -|(% style="width:179px" %)AT+TXCHS=868700000|(% style="width:177px" %)AT+TXCHS=869000000
38 -|(% style="width:179px" %)AT+RXCHS=869000000|(% style="width:177px" %)AT+RXCHS=868700000
39 -|(% style="width:179px" %)AT+TRIG1=2,50|(% style="width:177px" %)AT+TRIG1=2,50
40 -|(% style="width:179px" %)AT+TRIG2=2,50|(% style="width:177px" %)AT+TRIG2=2,50
41 -|(% style="width:179px" %)AT+DI1TODO1=2|(% style="width:177px" %)AT+DI1TODO1=2
42 -|(% style="width:179px" %)AT+DI1TORO1=2|(% style="width:177px" %)AT+DI1TORO1=2
43 -|(% style="width:179px" %)AT+DI2TODO2=2 |(% style="width:177px" %)AT+DI2TODO2=2
44 -|(% style="width:179px" %)AT+DI2TORO2=2|(% style="width:177px" %)AT+DI2TORO2=2
30 +(% border="1" style="background-color:#f7faff; color:black; width:500px" %)
31 +|=**A's configuration**|=**B's configuration**
32 +|AT+GROUPMOD=0|AT+GROUPMOD=0
33 +|AT+TXCHS=868700000|AT+TXCHS=869000000
34 +|AT+RXCHS=869000000|AT+RXCHS=868700000
35 +|AT+TRIG1=2,50|AT+TRIG1=2,50
36 +|AT+TRIG2=2,50|AT+TRIG2=2,50
37 +|AT+DI1TODO1=2|AT+DI1TODO1=2
38 +|AT+DI1TORO1=2|AT+DI1TORO1=2
39 +|AT+DI2TODO2=2 |AT+DI2TODO2=2
40 +|AT+DI2TORO2=2|AT+DI2TORO2=2
45 45  
42 +== **2.2  Point To Mult-Point ** ==
46 46  
47 47  
48 -=== 2.2.3 Serial port display ===
49 -
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 ==
53 +== **2.3 AT command** ==
64 64  
65 -=== 2.2.1 Overview ===
66 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 -(((
123 -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.
124 -)))
125 -
126 -
127 -== 2.3 AT command ==
128 -
129 -
130 -(((
131 131  (% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU
132 -)))
133 133  
134 -(((
135 135  (% style="color:#037691" %)**AT+FDR** (%%)**:**  Reset Parameters to Factory Default, Keys Reserve
136 -)))
137 137  
138 -(((
139 139  (% style="color:#037691" %)**AT+FCU** (%%)**:**  Get or Set the Frame Counter Uplink
140 -)))
141 141  
142 -(((
143 143  (% style="color:#037691" %)**AT+FCD** (%%)**:**  Get or Set the Frame Counter Downlink
144 -)))
145 145  
146 -(((
147 147  (% style="color:#037691" %)**AT+TXP** (%%)**:**  Get or Set the transmit power, the maximum is 20dBm (default is 14dBm)
148 -)))
149 149  
150 -(((
151 151  (% style="color:#037691" %)**AT+SYNC** (%%)**:**  Get or Set the Sync word [1:0x34,0:0x12] (default is 1)
152 -)))
153 153  
154 -(((
155 155  (% style="color:#037691" %)**AT+PMB** (%%)**:    **Get or Set the preamble (default:8)
156 -)))
157 157  
158 -(((
159 159  (% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000)
160 -)))
161 161  
162 -(((
163 163  (% style="color:#037691" %)**AT+TXSF **(%%)**:**  Get or Set the spreading factor of TX (7 to 12) (default:12)
164 -)))
165 165  
166 -(((
167 167  (% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000)
168 -)))
169 169  
170 -(((
171 171  (% style="color:#037691" %)**AT+RXSF **(%%)**:**  Get or Set the spreading factor of RX (7 to 12) (default:12)
172 -)))
173 173  
174 -(((
175 -(% style="color:#037691" %)**AT+BW **(%%)**:       **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
176 -)))
78 +(% style="color:#037691" %)**AT+BW **(%%)**:  **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
177 177  
178 -(((
179 179  (% 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)
180 -)))
181 181  
182 -(((
183 183  (% style="color:#037691" %)**AT+TDC **(%%)**:**  Get or set the application data transmission interval in ms(default 10 minutes)
184 -)))
185 185  
186 -(((
187 187  (% style="color:#037691" %)**AT+VER **(%%)**:**  Get firmware version number
188 -)))
189 189  
190 -(((
191 -(% style="color:#037691" %)**AT+SEND **(%%)**:   **Set Custom sent hex data
192 -)))
86 +(% style="color:#037691" %)**AT+SEND **(%%)**:  **Set Custom sent hex data
193 193  
194 -(((
195 195  (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0)
196 -)))
197 197  
198 -(((
199 -(((
200 200  (% 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)
201 -)))
202 -)))
203 203  
204 -(((
205 205  (% style="color:#037691" %)**AT+TRIG1 **(%%)**:**  Set or Get the DI1 pin interrupt trigger mode (default 0,0)
206 -)))
207 207  
208 -(((
209 209  (% style="color:#037691" %)**AT+TRIG2 **(%%)**:            **Set or Get the DI2 pin interrupt trigger mode (default 0,0)
210 -)))
211 211  
212 -(((
213 213  (% style="color:#037691" %)**AT+DI1TODO1 **(%%)**:    **Set or get the mode in which DI1 maps to DO1 (default 0)
214 -)))
215 215  
216 -(((
217 217  (% style="color:#037691" %)**AT+DI1TORO1 **(%%)**:    **Set or get the mode in which DI1 maps to RO1(default 0)
218 -)))
219 219  
220 -(((
221 221  (% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:**  Set or get the mode in which DI2 maps to DO2(default 0)
222 -)))
223 223  
224 -(((
225 225  (% style="color:#037691" %)**AT+DI2TORO2 **(%%)**:    **Set or get the mode in which DI2 maps to RO2(default 0)
226 -)))
227 227  
228 228  
229 -(((
230 -(% style="color:blue" %)**Example 1:**
231 -)))
232 232  
233 -(((
106 +(% style="color:#4f81bd" %)**Example 1:**
107 +
234 234  **AT+SEND=01020304 **will send a payload of 01020304
235 -)))
236 236  
237 237  
238 -(((
239 -(% style="color:blue" %)**Example 2: **
240 -)))
111 +(% style="color:#4f81bd" %)**Example 2: **
241 241  
242 -(((
243 243  **AT+TRIGx=a    **Trigger directly without triggering time
244 -)))
245 245  
246 -(((
247 247  **AT+TRIGx=a,b**
248 -)))
249 249  
250 -(((
251 -**a=0:** falling edge;
252 -)))
117 +a=0: falling edge;
253 253  
254 -(((
255 -**a=1: **rising edge;
256 -)))
119 +a=1: rising edge;
257 257  
258 -(((
259 -**a=2:** falling edge or rising edge;
260 -)))
121 +a=2: falling edge or rising edge;
261 261  
262 -(((
263 -**b:**  triggering time in milliseconds.
264 -)))
123 +b:  triggering time in milliseconds.
265 265  
266 -(((
267 -**AT+TRIGx=2,50**  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
268 -)))
125 +AT+TRIGx=2,50  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
269 269  
270 270  
271 -(((
272 -(% style="color:blue" %)**Example 3: **
273 -)))
128 +(% style="color:#4f81bd" %)**Example 3: **
274 274  
275 -(((
276 276  **AT+DI1TODO1= maps value**
277 -)))
278 278  
279 -(((
280 280  **AT+DI1TORO1= maps value**
281 -)))
282 282  
283 -(((
284 284  **AT+DI2TODO2= maps value**
285 -)))
286 286  
287 -(((
288 288  **AT+DI2TORO2= maps value**
289 -)))
290 290  
291 -(((
292 -
293 -)))
294 294  
295 -(% border="1" style="background-color:#f7faff; color:black; width:690px" %)
296 -|=(% style="width: 102px;" %)(((
297 -Maps value
298 -)))|=(% style="width: 331px;" %)(((
299 -DIx to DOx
300 -)))|=(% style="width: 251px;" %)(((
301 -DIx to ROx
302 -)))
303 -|(% style="width:102px" %)(((
304 -0
305 -)))|(% style="width:331px" %)(((
306 -No Action
307 -)))|(% style="width:251px" %)(((
308 -No Action
309 -)))
310 -|(% style="width:102px" %)(((
311 -1
312 -)))|(% style="width:331px" %)(((
313 -If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level
314 -)))|(% style="width:251px" %)(((
315 -(((
139 +(% border="1" style="background-color:#f7faff; color:black; width:706px" %)
140 +|=(% style="width: 102px;" %)Maps value|=(% style="width: 331px;" %)DIx to DOx|=(% style="width: 268px;" %)DIx to ROx
141 +|(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action
142 +|(% 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" %)(((
316 316  If DIx is high, control ROx to close,
317 -)))
318 318  
319 -(((
320 320  if DIx is low, control ROx to open
321 321  )))
322 -)))
323 -|(% style="width:102px" %)(((
324 -2
325 -)))|(% style="width:331px" %)(((
326 -If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level
327 -)))|(% style="width:251px" %)(((
328 -(((
147 +|(% 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" %)(((
329 329  If DIx is high, control ROx to open,
330 -)))
331 331  
332 -(((
333 333  if DIx is low, control ROx to close
334 334  )))
335 -)))
336 -|(% style="width:102px" %)(((
337 -3
338 -)))|(% style="width:331px" %)(((
339 -DOx state flip
340 -)))|(% style="width:251px" %)(((
341 -ROx state flip
342 -)))
152 +|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip
343 343  
344 -(((
345 -
154 +(% style="color:#4f81bd" %)**Example 4: **
346 346  
347 -(% style="color:blue" %)**Example 4: **
348 -)))
349 -
350 -(((
351 351  **AT+GROUPMOD=0**  Set to point to point mode
352 -)))
353 353  
354 -(((
355 355  **AT+GROUPMOD=0,aa**  Set the TX group that controls the number of aa (The maximum value of aa is 8)
356 -)))
357 357  
358 -(((
359 359  **AT+GROUPMOD=1,bb**  Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8)
360 -)))
361 361  
362 -(((
363 363  **AT+GROUPMOD=0,2**  Set to control the TX group of the two RX groups
364 -)))
365 365  
366 -(((
367 367  **AT+GROUPMOD=1,1**  Set the RX group numbered 1
368 -)))
369 369  
370 -(((
371 371  **AT+GROUPMOD=1,2**  Set the RX group numbered 2
372 -)))
373 373  
374 374  
375 -=== 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3) ===
169 +== **2.4 Data Format** ==
376 376  
377 -
378 -**AT+TRIGx=a  **Trigger transmit directly without triggering time
379 -
380 -**AT+TRIGx=a,b**  Trigger transmit with triggering time threshold
381 -
382 -**AT+TRIGx=a,b,c  **Trigger transmit with triggering time threshold, and continue to transmit every xx seconds if DI status no change.
383 -
384 -
385 -**a=0:** falling edge;
386 -
387 -**a=1:** rising edge;
388 -
389 -**a=2:** falling edge or rising edge;
390 -
391 -**b:**  triggering time in milliseconds.
392 -
393 -**c:** transmit interval
394 -
395 -
396 -(% 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)
397 -
398 -**Command:**
399 -
400 -**AT+TRIG1=2,50**  Falling edge or rising edge trigger, and the trigger time should exceed 50ms.
401 -
402 -
403 -(% style="color:blue" %)**Use Case 2:  **(%%)Sync LT2 RO / DO status with LT1 every minute.
404 -
405 -**Command:**
406 -
407 -**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.
408 -
409 -
410 -=== 2.3.2 RO/DO is configured in the receiver LT (LT2)(Since firmware 1.3) ===
411 -
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:774px" %)
423 -|(% style="width:105px" %) **Maps value**|(% style="width:415px" %)**DIx to DOx**|(% style="width:249px" %)**DIx to ROx**
424 -|(% style="width:105px" %)0|(% style="width:415px" %)No Action|(% style="width:249px" %)No Action
425 -|(% style="width:105px" %)1|(% style="width:415px" %)If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(% style="width:249px" %)(((
426 -If DIx is high, control ROx to close,
427 -
428 -if DIx is low, control ROx to open
429 -)))
430 -|(% style="width:105px" %)2|(% style="width:415px" %)If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(% style="width:249px" %)(((
431 -If DIx is high, control ROx to open,
432 -
433 -if DIx is low, control ROx to close
434 -)))
435 -|(% style="width:105px" %)3|(% style="width:415px" %)DOx state flip|(% style="width:249px" %)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 -
470 -**Example:**
471 -
472 -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.
473 -
474 -
475 -=== 2.3.4 Control Sleep status.(Since firmware 1.3) ===
476 -
477 -
478 -DI2 can be used to set LT into sleep mode.
479 -
480 -AT+DI2SLEEP=1  ~/~/  Enable DI2 as Sleep pin
481 -
482 -AT+DI2SLEEP=0  ~/~/  Disable DI2 as Sleep pin
483 -
484 -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.
485 -
486 -
487 -== 2.4 Data Format ==
488 -
489 -
490 -(((
491 491  8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum
492 -)))
493 493  
494 -(((
495 -(% style="color:blue" %)**Payload:**
496 -)))
497 497  
498 -(% border="1" style="background-color:#f7faff; color:black; width:825px" %)
499 -|=(% style="width: 102px;" %)(((
500 -**Size (bytes)**
501 -)))|=(% style="width: 74px;" %)(((
502 -1
503 -)))|=(% style="width: 72px;" %)(((
504 -1
505 -)))|=(% style="width: 47px;" %)(((
506 -1
507 -)))|=(% style="width: 83px;" %)(((
508 -1
509 -)))|=(% style="width: 90px;" %)(((
510 -1
511 -)))|=(% style="width: 92px;" %)(((
512 -1
513 -)))|=(% style="width: 78px;" %)(((
514 -1
515 -)))|=(% style="width: 91px;" %)(((
516 -1
517 -)))|=(% style="width: 91px;" %)(((
518 -1
519 -)))
520 -|(% style="width:102px" %)(((
521 -**Value**
522 -)))|(% style="width:74px" %)(((
523 -address
524 -)))|(% style="width:72px" %)(((
525 -request
526 -)))|(% style="width:47px" %)(((
527 -ACK
528 -)))|(% style="width:83px" %)(((
529 -(((
174 +(% style="color:#4f81bd" %)**Payload:**
175 +
176 +(% border="1" style="background-color:#f7faff; color:black; width:938px" %)
177 +|=(% style="width: 123px;" %)**Size (bytes)**|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1|=(% style="width: 107px;" %)1
178 +|(% style="width:123px" %)**Value**|(% style="width:38px" %)address|(% style="width:70px" %)request|(% style="width:52px" %)ACK|(% style="width:127px" %)(((
530 530  DI1&
180 +
531 531  DI1 level
532 -)))
533 -)))|(% style="width:90px" %)(((
534 -DI1TODO1
535 -)))|(% style="width:92px" %)(((
536 -DI1TORO1
537 -)))|(% style="width:78px" %)(((
538 -(((
182 +)))|(% style="width:101px" %)DI1TODO1|(% style="width:91px" %)DI1TORO1|(% style="width:111px" %)(((
539 539  DI2&
540 -DI2 leve
541 -)))
542 -)))|(% style="width:91px" %)(((
543 -DI2TODO2
544 -)))|(% style="width:91px" %)(((
545 -DI2TORO2
546 -)))
547 547  
548 -(((
185 +DI2 level
186 +)))|(% style="width:105px" %)DI2TODO2|(% style="width:106px" %)DI2TORO2
187 +
549 549  (% style="color:#037691" %)**The first byte**(%%)**:**  00 is the broadcast address, 01-08 is the RX group number.
550 -)))
551 551  
552 -(((
553 553  (% style="color:#037691" %)**The second byte**(%%)**:**  send mapping request when not 0, not request when it is 0.
554 -)))
555 555  
556 -(((
557 557  (% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
558 -)))
559 559  
560 -(((
561 -(((
562 562  (% 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.
563 -)))
564 -)))
565 565  
566 -(((
567 567  (% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
568 -)))
569 569  
570 -(((
571 571  (% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
572 -)))
573 573  
574 -(((
575 -(((
576 576  (% 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.
577 -)))
578 -)))
579 579  
580 -(((
581 581  (% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
582 -)))
583 583  
584 -(((
585 585  (% style="color:#037691" %)**The 9th byte**(%%)**:**  DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered.
586 -)))
587 587  
588 -(((
589 589  
590 -
591 -(% style="color:blue" %)**Payload:（Since firmware 1.3）The receiver replies to the sent packet**
592 -)))
593 -
594 -(% border="1" style="background-color:#f7faff; color:black; width:822px" %)
595 -|=(% style="width: 97px;" %)(((
596 -**Size(bytes)**
597 -)))|=(% style="width: 71px;" %)(((
598 -1
599 -)))|=(% style="width: 70px;" %)(((
600 -1
601 -)))|=(% style="width: 48px;" %)(((
602 -1
603 -)))|=(% style="width: 85px;" %)(((
604 -1
605 -)))|=(% style="width: 90px;" %)(((
606 -1
607 -)))|=(% style="width: 88px;" %)(((
608 -1
609 -)))|=(% style="width: 86px;" %)(((
610 -1
611 -)))|=(% style="width: 92px;" %)(((
612 -1
613 -)))|=(% style="width: 92px;" %)(((
614 -1
615 -)))
616 -|(% style="width:97px" %)(((
617 -**Value**
618 -)))|(% style="width:71px" %)(((
619 -address
620 -)))|(% style="width:70px" %)(((
621 -request
622 -)))|(% style="width:48px" %)(((
623 -ACK
624 -)))|(% style="width:85px" %)(((
625 -(((
626 -DO1&
627 -DO1 level
628 -)))
629 -)))|(% style="width:90px" %)(((
630 -DI1TODO1
631 -)))|(% style="width:88px" %)(((
632 -DI1TORO1
633 -)))|(% style="width:86px" %)(((
634 -(((
635 -RO2&
636 -RO2 level
637 -)))
638 -)))|(% style="width:92px" %)(((
639 -DI2TODO2
640 -)))|(% style="width:92px" %)(((
641 -DI2TORO2
642 -)))
643 -
644 -(((
645 -(% style="color:#037691" %)**The first byte**(%%)**:**  00 is the broadcast address, 01-08 is the RX group number.
646 -)))
647 -
648 -(((
649 -(% style="color:#037691" %)**The second byte**(%%)**:**  send mapping request when not 0, not request when it is 0.
650 -)))
651 -
652 -(((
653 -(% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
654 -)))
655 -
656 -(((
657 -(((
658 -(% 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.
659 -)))
660 -)))
661 -
662 -(((
663 -(% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
664 -)))
665 -
666 -(((
667 -(% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
668 -)))
669 -
670 -(((
671 -(((
672 -(% 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.
673 -)))
674 -)))
675 -
676 -(((
677 -(% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
678 -)))
679 -
680 -(((
681 -(% style="color:#037691" %)**The 9th byte**(%%)**:**  DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered.
682 -)))
683 -
684 -
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