Last modified by Edwin Chen on 2022/11/22 09:38
<
From version < 11.1 >
edited by Xiaoling
on 2022/06/02 14:28
To version < 19.4 >
edited by Xiaoling
on 2022/11/15 09:14
>
Change comment: There is no comment for this version

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Title
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1 - Point to Point Communication of LT-22222-L
1 +Point to Point Communication of LT-22222-L
Content
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1 -{{box cssClass="floatinginfobox" title="**Contents**"}}
1 +**Table of Contents： **
2 +
2 2  {{toc/}}
3 -{{/box}}
4 4  
5 -= **1. Overview** =
6 6  
6 +
7 +
8 += 1. Overview =
9 +
7 7  (((
11 +
12 +
8 8  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:
9 9  )))
10 10  
... ... @@ -12,205 +12,668 @@
12 12  [[Point to Point Software for LT-22222-L>>https://github.com/dragino/LT-22222-L]].
13 13  )))
14 14  
15 -== ==
16 16  
17 -= **2. Features for this firmware** =
21 += 2. Features for this firmware =
18 18  
23 +== 2.1  Point To Point ==
19 19  
20 -== **2.1  Point To Point** ==
25 +=== 2.1.1 Overview ===
21 21  
22 22  
23 23  [[image:image-20220602111219-1.png||height="472" width="972"]]
24 24  
25 25  
26 -(% class="wikigeneratedid" id="H2.2.Configure" %)
27 -(% style="color:blue" %)**Configure:**
31 +=== 2.2.2 Configure ===
28 28  
29 -(% border="1" style="background-color:#f7faff; color:black; width:500px" %)
30 -|=**A's configuration**|=**B's configuration**
31 -|AT+GROUPMOD=0|AT+GROUPMOD=0
32 -|AT+TXCHS=868700000|AT+TXCHS=869000000
33 -|AT+RXCHS=869000000|AT+RXCHS=868700000
34 -|AT+TRIG1=2,50|AT+TRIG1=2,50
35 -|AT+TRIG2=2,50|AT+TRIG2=2,50
36 -|AT+DI1TODO1=2|AT+DI1TODO1=2
37 -|AT+DI1TORO1=2|AT+DI1TORO1=2
38 -|AT+DI2TODO2=2 |AT+DI2TODO2=2
39 -|AT+DI2TORO2=2|AT+DI2TORO2=2
40 40  
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
41 41  
42 -== **2.2  Point To Mult-Point ** ==
43 43  
44 44  
48 +=== 2.2.3 Serial port display ===
49 +
50 +
51 +(% class="wikigeneratedid" %)
45 45  [[image:image-20220602111219-2.png]]
46 46  
47 47  
55 +(% class="wikigeneratedid" %)
48 48  [[image:image-20220602111219-3.png]]
49 49  
50 -(((
58 +
59 +(% class="wikigeneratedid" %)
51 51  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 +
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 +(((
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.
52 52  )))
53 53  
54 54  
55 -== **2.3 AT command** ==
127 +== 2.3 AT command ==
56 56  
57 57  
130 +(((
58 58  (% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU
132 +)))
59 59  
134 +(((
60 60  (% style="color:#037691" %)**AT+FDR** (%%)**:**  Reset Parameters to Factory Default, Keys Reserve
136 +)))
61 61  
138 +(((
62 62  (% style="color:#037691" %)**AT+FCU** (%%)**:**  Get or Set the Frame Counter Uplink
140 +)))
63 63  
142 +(((
64 64  (% style="color:#037691" %)**AT+FCD** (%%)**:**  Get or Set the Frame Counter Downlink
144 +)))
65 65  
146 +(((
66 66  (% style="color:#037691" %)**AT+TXP** (%%)**:**  Get or Set the transmit power, the maximum is 20dBm (default is 14dBm)
148 +)))
67 67  
150 +(((
68 68  (% style="color:#037691" %)**AT+SYNC** (%%)**:**  Get or Set the Sync word [1:0x34,0:0x12] (default is 1)
152 +)))
69 69  
154 +(((
70 70  (% style="color:#037691" %)**AT+PMB** (%%)**:    **Get or Set the preamble (default:8)
156 +)))
71 71  
158 +(((
72 72  (% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000)
160 +)))
73 73  
162 +(((
74 74  (% style="color:#037691" %)**AT+TXSF **(%%)**:**  Get or Set the spreading factor of TX (7 to 12) (default:12)
164 +)))
75 75  
166 +(((
76 76  (% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000)
168 +)))
77 77  
170 +(((
78 78  (% style="color:#037691" %)**AT+RXSF **(%%)**:**  Get or Set the spreading factor of RX (7 to 12) (default:12)
172 +)))
79 79  
174 +(((
80 80  (% style="color:#037691" %)**AT+BW **(%%)**:       **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
176 +)))
81 81  
178 +(((
82 82  (% 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 +)))
83 83  
182 +(((
84 84  (% style="color:#037691" %)**AT+TDC **(%%)**:**  Get or set the application data transmission interval in ms(default 10 minutes)
184 +)))
85 85  
186 +(((
86 86  (% style="color:#037691" %)**AT+VER **(%%)**:**  Get firmware version number
188 +)))
87 87  
190 +(((
88 88  (% style="color:#037691" %)**AT+SEND **(%%)**:   **Set Custom sent hex data
192 +)))
89 89  
194 +(((
90 90  (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0)
196 +)))
91 91  
92 92  (((
199 +(((
93 93  (% 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)
94 94  )))
202 +)))
95 95  
204 +(((
96 96  (% style="color:#037691" %)**AT+TRIG1 **(%%)**:**  Set or Get the DI1 pin interrupt trigger mode (default 0,0)
206 +)))
97 97  
208 +(((
98 98  (% style="color:#037691" %)**AT+TRIG2 **(%%)**:            **Set or Get the DI2 pin interrupt trigger mode (default 0,0)
210 +)))
99 99  
212 +(((
100 100  (% style="color:#037691" %)**AT+DI1TODO1 **(%%)**:    **Set or get the mode in which DI1 maps to DO1 (default 0)
214 +)))
101 101  
216 +(((
102 102  (% style="color:#037691" %)**AT+DI1TORO1 **(%%)**:    **Set or get the mode in which DI1 maps to RO1(default 0)
218 +)))
103 103  
220 +(((
104 104  (% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:**  Set or get the mode in which DI2 maps to DO2(default 0)
222 +)))
105 105  
224 +(((
106 106  (% style="color:#037691" %)**AT+DI2TORO2 **(%%)**:    **Set or get the mode in which DI2 maps to RO2(default 0)
226 +)))
107 107  
108 108  
229 +(((
230 +(% style="color:blue" %)**Example 1:**
231 +)))
109 109  
110 -(% style="color:#4f81bd" %)**Example 1:**
111 -
233 +(((
112 112  **AT+SEND=01020304 **will send a payload of 01020304
235 +)))
113 113  
114 114  
115 -(% style="color:#4f81bd" %)**Example 2: **
238 +(((
239 +(% style="color:blue" %)**Example 2: **
240 +)))
116 116  
242 +(((
117 117  **AT+TRIGx=a    **Trigger directly without triggering time
244 +)))
118 118  
246 +(((
119 119  **AT+TRIGx=a,b**
248 +)))
120 120  
121 -a=0: falling edge;
250 +(((
251 +**a=0:** falling edge;
252 +)))
122 122  
123 -a=1: rising edge;
254 +(((
255 +**a=1: **rising edge;
256 +)))
124 124  
125 -a=2: falling edge or rising edge;
258 +(((
259 +**a=2:** falling edge or rising edge;
260 +)))
126 126  
127 -b:  triggering time in milliseconds.
262 +(((
263 +**b:**  triggering time in milliseconds.
264 +)))
128 128  
129 -AT+TRIGx=2,50  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
266 +(((
267 +**AT+TRIGx=2,50**  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
268 +)))
130 130  
131 131  
132 -(% style="color:#4f81bd" %)**Example 3: **
271 +(((
272 +(% style="color:blue" %)**Example 3: **
273 +)))
133 133  
275 +(((
134 134  **AT+DI1TODO1= maps value**
277 +)))
135 135  
279 +(((
136 136  **AT+DI1TORO1= maps value**
281 +)))
137 137  
283 +(((
138 138  **AT+DI2TODO2= maps value**
285 +)))
139 139  
287 +(((
140 140  **AT+DI2TORO2= maps value**
289 +)))
141 141  
291 +(((
292 +
293 +)))
142 142  
143 -(% border="1" style="background-color:#f7faff; color:black; width:706px" %)
144 -|=(% style="width: 102px;" %)Maps value|=(% style="width: 331px;" %)DIx to DOx|=(% style="width: 268px;" %)DIx to ROx
145 -|(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action
146 -|(% 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" %)(((
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 +(((
147 147  If DIx is high, control ROx to close,
317 +)))
148 148  
319 +(((
149 149  if DIx is low, control ROx to open
150 150  )))
151 -|(% 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" %)(((
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 +(((
152 152  If DIx is high, control ROx to open,
330 +)))
153 153  
332 +(((
154 154  if DIx is low, control ROx to close
155 155  )))
156 -|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip
335 +)))
336 +|(% style="width:102px" %)(((
337 +3
338 +)))|(% style="width:331px" %)(((
339 +DOx state flip
340 +)))|(% style="width:251px" %)(((
341 +ROx state flip
342 +)))
157 157  
158 -(% style="color:#4f81bd" %)**Example 4: **
344 +(((
345 +
159 159  
347 +(% style="color:blue" %)**Example 4: **
348 +)))
349 +
350 +(((
160 160  **AT+GROUPMOD=0**  Set to point to point mode
352 +)))
161 161  
354 +(((
162 162  **AT+GROUPMOD=0,aa**  Set the TX group that controls the number of aa (The maximum value of aa is 8)
356 +)))
163 163  
164 164  (((
165 165  **AT+GROUPMOD=1,bb**  Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8)
166 166  )))
167 167  
362 +(((
168 168  **AT+GROUPMOD=0,2**  Set to control the TX group of the two RX groups
364 +)))
169 169  
366 +(((
170 170  **AT+GROUPMOD=1,1**  Set the RX group numbered 1
368 +)))
171 171  
370 +(((
172 172  **AT+GROUPMOD=1,2**  Set the RX group numbered 2
372 +)))
173 173  
174 174  
175 -== **2.4 Data Format** ==
375 +=== 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3) ===
176 176  
177 -8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum
178 178  
378 +**AT+TRIGx=a          **Trigger transmit directly without triggering time
179 179  
180 -(% style="color:#4f81bd" %)**Payload:**
380 +**AT+TRIGx=a,b**  Trigger transmit with triggering time threshold
181 181  
182 -(% border="1" style="background-color:#f7faff; color:black; width:938px" %)
183 -|=(% 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
184 -|(% style="width:123px" %)**Value**|(% style="width:38px" %)address|(% style="width:70px" %)request|(% style="width:52px" %)ACK|(% style="width:127px" %)(((
185 -DI1&
382 +**AT+TRIGx=a,b,c    **Trigger transmit with triggering time threshold, and continue to transmit every xx seconds if DI status no change.
186 186  
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 +8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum
492 +)))
493 +
494 +(((
495 +(% style="color:blue" %)**Payload:**
496 +)))
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 +(((
530 +DI1&
187 187  DI1 level
188 -)))|(% style="width:101px" %)DI1TODO1|(% style="width:91px" %)DI1TORO1|(% style="width:111px" %)(((
532 +)))
533 +)))|(% style="width:90px" %)(((
534 +DI1TODO1
535 +)))|(% style="width:92px" %)(((
536 +DI1TORO1
537 +)))|(% style="width:78px" %)(((
538 +(((
189 189  DI2&
540 +DI2 leve
541 +)))
542 +)))|(% style="width:91px" %)(((
543 +DI2TODO2
544 +)))|(% style="width:91px" %)(((
545 +DI2TORO2
546 +)))
190 190  
191 -DI2 level
192 -)))|(% style="width:105px" %)DI2TODO2|(% style="width:106px" %)DI2TORO2
193 -
548 +(((
194 194  (% style="color:#037691" %)**The first byte**(%%)**:**  00 is the broadcast address, 01-08 is the RX group number.
550 +)))
195 195  
552 +(((
196 196  (% style="color:#037691" %)**The second byte**(%%)**:**  send mapping request when not 0, not request when it is 0.
554 +)))
197 197  
556 +(((
198 198  (% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
558 +)))
199 199  
200 200  (((
561 +(((
201 201  (% 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.
202 202  )))
564 +)))
203 203  
566 +(((
204 204  (% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
568 +)))
205 205  
570 +(((
206 206  (% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
572 +)))
207 207  
208 208  (((
575 +(((
209 209  (% 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.
210 210  )))
578 +)))
211 211  
580 +(((
212 212  (% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
582 +)))
213 213  
584 +(((
214 214  (% style="color:#037691" %)**The 9th byte**(%%)**:**  DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered.
586 +)))
215 215  
588 +(((
216 216  
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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