Version 11.2 by Xiaoling on 2022/07/04 10:48
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1 = **1.  point to point** =
2
3 == **1.1  Overview** ==
4
5 (((
6 [[image:1656901825798-483.png]]
7
8
9 == **1.2  Configure** ==
10
11
12 (% style="color:blue" %)**A's configuration:  ** **B's configuration:**
13
14 AT+GROUPMOD=0  AT+GROUPMOD=0
15
16 AT+GROUPID=12345678  AT+GROUPID=12345678
17
18 AT+TXCHS=868700000  AT+TXCHS=869000000
19
20 AT+RXCHS=869000000  AT+RXCHS=868700000
21
22 AT+CFGDEV=01 03 00 00 00 04,1  AT+CFGDEV=01 03 00 00 00 02,1
23
24 or                                                                                         or
25
26 AT+COMMAND=01 03 00 00 00 04,1  AT+COMMAND=01 03 00 00 00 02,1
27 )))
28
29
30
31 == **1.3  Serial port display** ==
32
33
34 [[image:image-20220704103422-2.png||height="430" width="817"]]
35
36 A sends a command to B to query B's RS485 sensor data and display it on A's upper computer.
37
38 Similarly, B sends a command to A to query A's RS485 sensor data and display it on B's upper computer.
39
40
41 [[image:image-20220704103502-3.png]]
42
43 If the sender does not get the ACK reply from the receiver, it will retransmit up to 4 times, each interval is 10 seconds, and the UplinkCounter of the retransmission will not increase. (Retransmission only occurs when using the AT+CFGDEV command or triggering an external interrupt)
44
45
46
47 == **2.2  Point To Mult-Point ** ==
48
49 === **2.2.1  Overview** ===
50
51
52 [[image:1656901541427-229.png]]
53
54
55 === **2.2.2  Configure** ===
56
57
58 (% style="color:blue" %)**Configuration of the TX group:**
59
60 AT+GROUPMOD=0,2
61
62 AT+GROUPID=12345678
63
64 AT+TXCHS=868700000
65
66 AT+RXCHS=869000000
67
68 AT+CFGDEV=01 03 00 00 00 02,1
69
70 or
71
72 AT+COMMAND=01 03 00 00 00 02,1
73
74
75 (% style="color:blue" %)**Configuration for RX group number 1:**
76
77 AT+GROUPMOD=1,1
78
79 AT+GROUPID=12345678
80
81 AT+TXCHS=869000000
82
83 AT+RXCHS=868700000
84
85
86 (% style="color:blue" %)**Configuration for RX group number 2:**
87
88 AT+GROUPMOD=1,2
89
90 AT+GROUPID=12345678
91
92 AT+TXCHS=869000000
93
94 AT+RXCHS=868700000
95
96
97
98 === **2.2.3 Serial port display** ===
99
100 (% id="cke_bm_79849S" style="display:none" %) [[image:1656901280202-290.png]]
101
102
103 [[image:image-20220704103658-4.png||height="495" width="852"]]
104
105 The TX group sends broadcast data to the RX group. After the RX group receives the data, it will reply to the TX group in order from small to large.(% style="display:none" %)
106
107 (% style="display:none" %) (%%)
108
109
110 [[image:image-20220704103658-5.png]]
111
112 If the sender does not get the ACK reply from the receiver, it will retransmit up to 4 times, each interval is 30 seconds, and the UplinkCounter of the retransmission will not increase.(Retransmission only occurs when using the AT+CFGDEV command or triggering an external interrupt)
113
114 (% style="display:none" %) (%%)
115
116 (% style="display:none" %) (%%)
117
118 == **2.3 AT command** ==
119
120 (% style="display:none" %) (%%)
121
122 ATZ :Trig a reset of the MCU
123
124 AT+FDR :Reset Parameters to Factory Default, Keys Reserve
125
126 AT+FCU :Get or Set the Frame (% style="display:none" %) (%%)Counter Uplink
127
128 AT+FCD :Get or Set the Frame (% style="display:none" %) (%%)Counter Downlink
129
130 AT+TXP :Get or Set the transmit power, the maximum is 20dBm (default is 14dBm)
131
132 AT+SYNC :Get or Set the Sync (% style="display:none" %) (%%)word [1:0x34,0:0x12] (default is 1)
133
134 AT+PMB :Get or Set the preamble (default:8)
135
136 AT+TXCHS :Get or Set the transmit frequency of TX (default:868700000)
137
138 AT+TXSF :Get or Set the spreading factor of TX (7 to 12) (default:12)
139
140 AT+RXCHS :Get or Set the transmit frequency of RX (default:869000000)
141
142 AT+RXSF :Get or Set the spreading factor of RX (7 to 12) (default:12)
143
144 AT+BW :Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
145
146 AT+CR :Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1)
147
148 AT+TDC :Get or set the application data transmission interval in ms(default 10 minutes)
149
150 AT+VER :get firmware version number
151
152 AT+SEND :Set Custom sent hex data
153
154 AT+GROUPMOD :Set or Get the grouping mode of the device (default: 0)
155
156 AT+GROUPID : (% style="display:none" %) (%%)Set or Get the password for matching between TX group and RX group, which can be composed of numbers or characters (default: 12345678)(% style="display:none" %)
157
158
159 (((
160 (% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU
161 )))
162
163 (((
164 (% style="color:#037691" %)**AT+FDR** (%%)**:**  Reset Parameters to Factory Default, Keys Reserve
165 )))
166
167 (((
168 (% style="color:#037691" %)**AT+FCU** (%%)**:**  Get or Set the Frame Co(% style="display:none" %) (%%)unter Uplink
169 )))
170
171 (((
172 (% style="color:#037691" %)**AT+FCD** (%%)**:**  Get or Set the Frame Counter Downlink
173 )))
174
175 (((
176 (% style="color:#037691" %)**AT+TXP** (%%)**:**  Get or Set the transmit power, the maximum is 20dBm (default is 14dBm)
177 )))
178
179 (((
180 (% style="color:#037691" %)**AT+SYNC** (%%)**:**  Get or Set the Sync word [1:0x34,0:0x12] (default is 1)
181 )))
182
183 (((
184 (% style="color:#037691" %)**AT+PMB** (%%)**:    **Get or Set the preamble (default:8)
185 )))
186
187 (((
188 (% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000)
189 )))
190
191 (((
192 (% style="color:#037691" %)**AT+TXSF **(%%)**:**  Get or Set the spreading factor of TX (7 to 12) (default:12)
193 )))
194
195 (((
196 (% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000)
197 )))
198
199 (((
200 (% style="color:#037691" %)**AT+RXSF **(%%)**:**  Get or Set the spreading factor of RX (7 to 12) (default:12)
201 )))
202
203 (((
204 (% style="color:#037691" %)**AT+BW **(%%)**:       **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
205 )))
206
207 (((
208 (% 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)
209 )))
210
211 (((
212 (% style="color:#037691" %)**AT+TDC **(%%)**:**  Get or set the application data transmission interval in ms(default 10 minutes)
213 )))
214
215 (((
216 (% style="color:#037691" %)**AT+VER **(%%)**:**  Get firmware version number
217 )))
218
219 (((
220 (% style="color:#037691" %)**AT+SEND **(%%)**:   **Set Custom sent hex data
221 )))
222
223 (((
224 (% style="color:#037691" %)**AT+GROUPMOD **(%%)**:  **Set or Get the grouping (% style="display:none" %) (%%)mode of the device (default: 0)
225 )))
226
227 (((
228 (((
229 (% style="color:#037691" %)**AT+GROUPID **(%%)**:  **Set or Get the password for (% style="display:none" %) (%%)matching between TX group and RX group, which can be composed of numbers or characters (default: 12345678)(% style="display:none" %)
230
231 (% style="color:#037691" %)**AT+INTMOD **(%%)**:**  Get or Set the trigger interrupt mode
232
233 (% style="color:#037691" %)**AT+BAUDR **(%%)**:**  Get or set the baud rate of rs485. (default: 9600)
234
235 (% style="color:#037691" %)**AT+DATABIT **(%%)**:**  Get or Set databit(7:7 bits,8:8 bits) of rs485 (default: 8)
236
237 (% style="color:#037691" %)**AT+PARITY **(%%)**:  **Get or Set parity(0:none,1:odd,2:even) of rs485(default: 0)
238
239 (% style="color:#037691" %)**AT+STOPBIT **(%%)**:  **Get or Set stopbit(0:1 bit,1:1.5 bit,2:2 bit) of rs485(default: 0)
240
241 (% style="color:#037691" %)**AT+CMDDL **(%%)**:**  Get or Set the delay waiting time after receiving RS485 command (default: 400)
242
243 (% style="color:#037691" %)**AT+CRCCHECK **(%%)**:**  Get or set to receive and verify RS485 sensor data (0: Disable,1:CRC16_MODBUS) (default: 1)
244
245 (% style="color:#037691" %)**AT+SCHEDULE **(%%)**:**  Each TDC sends command data to the receiver.
246
247 (% style="color:#037691" %)**AT+CFGDEV **(%%)**:**  Instantly send RS485 commands to the receiver.
248
249 (% style="color:#037691" %)**AT+RS485 **(%%)**:  **Send commands to the local RS485 device.
250
251 (% style="color:#037691" %)**AT+MOD **(%%)**:**  Get or set the host send mode.(default: 0)
252 )))
253 )))
254
255 (((
256
257 )))
258
259 (((
260
261 )))
262
263 (((
264
265 )))
266
267 (((
268
269 )))
270
271 (((
272 (% style="color:#4f81bd" %)**Example 1:**
273 )))
274
275 (((
276 **AT+SEND=01020304 **will send a payload of 01020304
277 )))
278
279 (((
280
281 )))
282
283 (((
284 (% style="color:#4f81bd" %)**Example 2: **
285 )))
286
287 (((
288 **AT+TRIGx=a    **Trigger directly without triggering time
289 )))
290
291 (((
292 **AT+TRIGx=a,b**
293 )))
294
295 (((
296 a=0: falling edge;
297 )))
298
299 (((
300 a=1: rising edge;
301 )))
302
303 (((
304 a=2: falling edge or rising edge;
305 )))
306
307 (((
308 b:  triggering time in milliseconds.
309 )))
310
311 (((
312 AT+TRIGx=2,50  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
313 )))
314
315 (((
316
317 )))
318
319 (((
320 (% style="color:#4f81bd" %)**Example 3: **
321 )))
322
323 (((
324 **AT+DI1TODO1= maps value**
325 )))
326
327 (((
328 **AT+DI1TORO1= maps value**
329 )))
330
331 (((
332 **AT+DI2TODO2= maps value**
333 )))
334
335 (((
336 **AT+DI2TORO2= maps value**
337 )))
338
339 (((
340
341 )))
342
343 (% border="1" style="background-color:#f7faff; color:black; width:706px" %)
344 |=(% style="width: 102px;" %)(((
345 Maps value
346 )))|=(% style="width: 331px;" %)(((
347 DIx to DOx
348 )))|=(% style="width: 268px;" %)(((
349 DIx to ROx
350 )))
351 |(% style="width:102px" %)(((
352 0
353 )))|(% style="width:331px" %)(((
354 No Action
355 )))|(% style="width:268px" %)(((
356 No Action
357 )))
358 |(% style="width:102px" %)(((
359 1
360 )))|(% style="width:331px" %)(((
361 If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level
362 )))|(% style="width:268px" %)(((
363 (((
364 If DIx is high, control ROx to close,
365 )))
366
367 (((
368 if DIx is low, control ROx to open
369 )))
370 )))
371 |(% style="width:102px" %)(((
372 2
373 )))|(% style="width:331px" %)(((
374 If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level
375 )))|(% style="width:268px" %)(((
376 (((
377 If DIx is high, control ROx to open,
378 )))
379
380 (((
381 if DIx is low, control ROx to close
382 )))
383 )))
384 |(% style="width:102px" %)(((
385 3
386 )))|(% style="width:331px" %)(((
387 DOx state flip
388 )))|(% style="width:268px" %)(((
389 ROx state flip
390 )))
391
392 (((
393 (% style="color:#4f81bd" %)**Example 4: **
394 )))
395
396 (((
397 **AT+GROUPMOD=0**  Set to point to point mode
398 )))
399
400 (((
401 **AT+GROUPMOD=0,aa**  Set the TX group that controls the number of aa (The maximum value of aa is 8)
402 )))
403
404 (((
405 (((
406 **AT+GROUPMOD=1,bb**  Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8)
407 )))
408 )))
409
410 (((
411 **AT+GROUPMOD=0,2**  Set to control the TX group of the two RX groups
412 )))
413
414 (((
415 **AT+GROUPMOD=1,1**  Set the RX group numbered 1
416 )))
417
418 (((
419 **AT+GROUPMOD=1,2**  Set the RX group numbered 2
420 )))
421
422
423 == **2.4 Data Format** ==
424
425 (((
426 8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum
427 )))
428
429 (((
430
431 )))
432
433 (((
434 (% style="color:#4f81bd" %)**Payload:**
435 )))
436
437 (% border="1" style="background-color:#f7faff; color:black; width:938px" %)
438 |=(% style="width: 123px;" %)(((
439 **Size (bytes)**
440 )))|=(% style="width: 107px;" %)(((
441 1
442 )))|=(% style="width: 107px;" %)(((
443 1
444 )))|=(% style="width: 107px;" %)(((
445 1
446 )))|=(% style="width: 107px;" %)(((
447 1
448 )))|=(% style="width: 107px;" %)(((
449 1
450 )))|=(% style="width: 107px;" %)(((
451 1
452 )))|=(% style="width: 107px;" %)(((
453 1
454 )))|=(% style="width: 107px;" %)(((
455 1
456 )))|=(% style="width: 107px;" %)(((
457 1
458 )))
459 |(% style="width:123px" %)(((
460 **Value**
461 )))|(% style="width:38px" %)(((
462 address
463 )))|(% style="width:70px" %)(((
464 request
465 )))|(% style="width:52px" %)(((
466 ACK
467 )))|(% style="width:127px" %)(((
468 (((
469 DI1&
470 )))
471
472 (((
473 DI1 level
474 )))
475 )))|(% style="width:101px" %)(((
476 DI1TODO1
477 )))|(% style="width:91px" %)(((
478 DI1TORO1
479 )))|(% style="width:111px" %)(((
480 (((
481 DI2&
482 )))
483
484 (((
485 DI2 level
486 )))
487 )))|(% style="width:105px" %)(((
488 DI2TODO2
489 )))|(% style="width:106px" %)(((
490 DI2TORO2
491 )))
492
493 (((
494 (% style="color:#037691" %)**The first byte**(%%)**:**  00 is the broadcast address, 01-08 is the RX group number.
495 )))
496
497 (((
498 (% style="color:#037691" %)**The second byte**(%%)**:**  send mapping request when not 0, not request when it is 0.
499 )))
500
501 (((
502 (% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
503 )))
504
505 (((
506 (((
507 (% 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.
508 )))
509 )))
510
511 (((
512 (% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
513 )))
514
515 (((
516 (% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
517 )))
518
519 (((
520 (((
521 (% 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.
522 )))
523 )))
524
525 (((
526 (% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
527 )))
528
529 (((
530 (% style="color:#037691" %)**The 9th byte**(%%)**:**  DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered.
531 )))

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