Last modified by Edwin Chen on 2022/11/22 09:38
<
From version < 8.8 >
edited by Xiaoling
on 2022/06/02 14:22
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
... ... @@ -1,10 +1,15 @@
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  
... ... @@ -12,195 +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 29  
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
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  
58 +
59 +(% class="wikigeneratedid" %)
50 50  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.
51 51  
52 52  
53 -== **2.3 AT command** ==
63 +== 2.2  Point To Mult-Point ==
54 54  
65 +=== 2.2.1 Overview ===
55 55  
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 +(((
56 56  (% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU
132 +)))
57 57  
134 +(((
58 58  (% style="color:#037691" %)**AT+FDR** (%%)**:**  Reset Parameters to Factory Default, Keys Reserve
136 +)))
59 59  
138 +(((
60 60  (% style="color:#037691" %)**AT+FCU** (%%)**:**  Get or Set the Frame Counter Uplink
140 +)))
61 61  
142 +(((
62 62  (% style="color:#037691" %)**AT+FCD** (%%)**:**  Get or Set the Frame Counter Downlink
144 +)))
63 63  
146 +(((
64 64  (% style="color:#037691" %)**AT+TXP** (%%)**:**  Get or Set the transmit power, the maximum is 20dBm (default is 14dBm)
148 +)))
65 65  
150 +(((
66 66  (% style="color:#037691" %)**AT+SYNC** (%%)**:**  Get or Set the Sync word [1:0x34,0:0x12] (default is 1)
152 +)))
67 67  
154 +(((
68 68  (% style="color:#037691" %)**AT+PMB** (%%)**:    **Get or Set the preamble (default:8)
156 +)))
69 69  
158 +(((
70 70  (% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000)
160 +)))
71 71  
162 +(((
72 72  (% style="color:#037691" %)**AT+TXSF **(%%)**:**  Get or Set the spreading factor of TX (7 to 12) (default:12)
164 +)))
73 73  
166 +(((
74 74  (% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000)
168 +)))
75 75  
170 +(((
76 76  (% style="color:#037691" %)**AT+RXSF **(%%)**:**  Get or Set the spreading factor of RX (7 to 12) (default:12)
172 +)))
77 77  
78 -(% style="color:#037691" %)**AT+BW **(%%)**:  **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
174 +(((
175 +(% style="color:#037691" %)**AT+BW **(%%)**:       **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
176 +)))
79 79  
178 +(((
80 80  (% 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 +)))
81 81  
182 +(((
82 82  (% style="color:#037691" %)**AT+TDC **(%%)**:**  Get or set the application data transmission interval in ms(default 10 minutes)
184 +)))
83 83  
186 +(((
84 84  (% style="color:#037691" %)**AT+VER **(%%)**:**  Get firmware version number
188 +)))
85 85  
86 -(% style="color:#037691" %)**AT+SEND **(%%)**:  **Set Custom sent hex data
190 +(((
191 +(% style="color:#037691" %)**AT+SEND **(%%)**:   **Set Custom sent hex data
192 +)))
87 87  
194 +(((
88 88  (% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0)
196 +)))
89 89  
198 +(((
199 +(((
90 90  (% 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 +)))
91 91  
204 +(((
92 92  (% style="color:#037691" %)**AT+TRIG1 **(%%)**:**  Set or Get the DI1 pin interrupt trigger mode (default 0,0)
206 +)))
93 93  
208 +(((
94 94  (% style="color:#037691" %)**AT+TRIG2 **(%%)**:            **Set or Get the DI2 pin interrupt trigger mode (default 0,0)
210 +)))
95 95  
212 +(((
96 96  (% style="color:#037691" %)**AT+DI1TODO1 **(%%)**:    **Set or get the mode in which DI1 maps to DO1 (default 0)
214 +)))
97 97  
216 +(((
98 98  (% style="color:#037691" %)**AT+DI1TORO1 **(%%)**:    **Set or get the mode in which DI1 maps to RO1(default 0)
218 +)))
99 99  
220 +(((
100 100  (% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:**  Set or get the mode in which DI2 maps to DO2(default 0)
222 +)))
101 101  
224 +(((
102 102  (% style="color:#037691" %)**AT+DI2TORO2 **(%%)**:    **Set or get the mode in which DI2 maps to RO2(default 0)
226 +)))
103 103  
104 104  
229 +(((
230 +(% style="color:blue" %)**Example 1:**
231 +)))
105 105  
106 -(% style="color:#4f81bd" %)**Example 1:**
107 -
233 +(((
108 108  **AT+SEND=01020304 **will send a payload of 01020304
235 +)))
109 109  
110 110  
111 -(% style="color:#4f81bd" %)**Example 2: **
238 +(((
239 +(% style="color:blue" %)**Example 2: **
240 +)))
112 112  
242 +(((
113 113  **AT+TRIGx=a    **Trigger directly without triggering time
244 +)))
114 114  
246 +(((
115 115  **AT+TRIGx=a,b**
248 +)))
116 116  
117 -a=0: falling edge;
250 +(((
251 +**a=0:** falling edge;
252 +)))
118 118  
119 -a=1: rising edge;
254 +(((
255 +**a=1: **rising edge;
256 +)))
120 120  
121 -a=2: falling edge or rising edge;
258 +(((
259 +**a=2:** falling edge or rising edge;
260 +)))
122 122  
123 -b:  triggering time in milliseconds.
262 +(((
263 +**b:**  triggering time in milliseconds.
264 +)))
124 124  
125 -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 +)))
126 126  
127 127  
128 -(% style="color:#4f81bd" %)**Example 3: **
271 +(((
272 +(% style="color:blue" %)**Example 3: **
273 +)))
129 129  
275 +(((
130 130  **AT+DI1TODO1= maps value**
277 +)))
131 131  
279 +(((
132 132  **AT+DI1TORO1= maps value**
281 +)))
133 133  
283 +(((
134 134  **AT+DI2TODO2= maps value**
285 +)))
135 135  
287 +(((
136 136  **AT+DI2TORO2= maps value**
289 +)))
137 137  
291 +(((
292 +
293 +)))
138 138  
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" %)(((
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 +(((
143 143  If DIx is high, control ROx to close,
317 +)))
144 144  
319 +(((
145 145  if DIx is low, control ROx to open
146 146  )))
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" %)(((
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 +(((
148 148  If DIx is high, control ROx to open,
330 +)))
149 149  
332 +(((
150 150  if DIx is low, control ROx to close
151 151  )))
152 -|(% 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 +)))
153 153  
154 -(% style="color:#4f81bd" %)**Example 4: **
344 +(((
345 +
155 155  
347 +(% style="color:blue" %)**Example 4: **
348 +)))
349 +
350 +(((
156 156  **AT+GROUPMOD=0**  Set to point to point mode
352 +)))
157 157  
354 +(((
158 158  **AT+GROUPMOD=0,aa**  Set the TX group that controls the number of aa (The maximum value of aa is 8)
356 +)))
159 159  
358 +(((
160 160  **AT+GROUPMOD=1,bb**  Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8)
360 +)))
161 161  
362 +(((
162 162  **AT+GROUPMOD=0,2**  Set to control the TX group of the two RX groups
364 +)))
163 163  
366 +(((
164 164  **AT+GROUPMOD=1,1**  Set the RX group numbered 1
368 +)))
165 165  
370 +(((
166 166  **AT+GROUPMOD=1,2**  Set the RX group numbered 2
372 +)))
167 167  
168 168  
169 -== **2.4 Data Format** ==
375 +=== 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3) ===
170 170  
171 -8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum
172 172  
378 +**AT+TRIGx=a          **Trigger transmit directly without triggering time
173 173  
174 -(% style="color:#4f81bd" %)**Payload:**
380 +**AT+TRIGx=a,b**  Trigger transmit with triggering time threshold
175 175  
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" %)(((
179 -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.
180 180  
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&
181 181  DI1 level
182 -)))|(% 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 +(((
183 183  DI2&
540 +DI2 leve
541 +)))
542 +)))|(% style="width:91px" %)(((
543 +DI2TODO2
544 +)))|(% style="width:91px" %)(((
545 +DI2TORO2
546 +)))
184 184  
185 -DI2 level
186 -)))|(% style="width:105px" %)DI2TODO2|(% style="width:106px" %)DI2TORO2
187 -
548 +(((
188 188  (% style="color:#037691" %)**The first byte**(%%)**:**  00 is the broadcast address, 01-08 is the RX group number.
550 +)))
189 189  
552 +(((
190 190  (% style="color:#037691" %)**The second byte**(%%)**:**  send mapping request when not 0, not request when it is 0.
554 +)))
191 191  
556 +(((
192 192  (% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
558 +)))
193 193  
560 +(((
561 +(((
194 194  (% 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 +)))
195 195  
566 +(((
196 196  (% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
568 +)))
197 197  
570 +(((
198 198  (% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
572 +)))
199 199  
574 +(((
575 +(((
200 200  (% 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 +)))
201 201  
580 +(((
202 202  (% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
582 +)))
203 203  
584 +(((
204 204  (% style="color:#037691" %)**The 9th byte**(%%)**:**  DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered.
586 +)))
205 205  
588 +(((
206 206  
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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