Last modified by Bei Jinggeng on 2024/05/31 09:53
<
From version < 104.1 >
edited by Edwin Chen
on 2022/09/08 23:13
To version < 108.8 >
edited by Xiaoling
on 2022/11/04 15:36
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Edwin
1 +XWiki.Xiaoling
Content
... ... @@ -71,6 +71,8 @@
71 71  * Micro SIM card slot for NB-IoT SIM
72 72  * 8500mAh Battery for long term use
73 73  
74 +
75 +
74 74  == 1.3  Specification ==
75 75  
76 76  
... ... @@ -81,12 +81,12 @@
81 81  
82 82  (% style="color:#037691" %)**NB-IoT Spec:**
83 83  
84 -* - B1 @H-FDD: 2100MHz
85 -* - B3 @H-FDD: 1800MHz
86 -* - B8 @H-FDD: 900MHz
87 -* - B5 @H-FDD: 850MHz
88 -* - B20 @H-FDD: 800MHz
89 -* - B28 @H-FDD: 700MHz
86 +* B1 @H-FDD: 2100MHz
87 +* B3 @H-FDD: 1800MHz
88 +* B8 @H-FDD: 900MHz
89 +* B5 @H-FDD: 850MHz
90 +* B20 @H-FDD: 800MHz
91 +* B28 @H-FDD: 700MHz
90 90  
91 91  (% style="color:#037691" %)**Battery:**
92 92  
... ... @@ -101,6 +101,8 @@
101 101  * STOP Mode: 10uA @ 3.3v
102 102  * Max transmit power: 350mA@3.3v
103 103  
106 +
107 +
104 104  == ​1.4  Applications ==
105 105  
106 106  
... ... @@ -116,7 +116,6 @@
116 116  
117 117  
118 118  
119 -
120 120  == 1.5  Pin Definitions ==
121 121  
122 122  
... ... @@ -201,13 +201,13 @@
201 201  [[image:image-20220709092052-2.png]]
202 202  
203 203  
204 -**Connection:**
207 +(% style="color:blue" %)**Connection:**
205 205  
206 - (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
209 + (% style="background-color:yellow" %)**USB TTL GND <~-~-~-~-> GND**
207 207  
208 - (% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD
211 +**~ (% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD(%%)**
209 209  
210 - (% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD
213 +**~ (% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD(%%)**
211 211  
212 212  
213 213  In the PC, use below serial tool settings:
... ... @@ -245,10 +245,10 @@
245 245  (% style="color:blue" %)**AT+PRO=1**  (%%) ~/~/ Set to use CoAP protocol to uplink
246 246  )))
247 247  * (((
248 -(% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/ to set CoAP server address and port
251 +(% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/  to set CoAP server address and port
249 249  )))
250 250  * (((
251 -(% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
254 +(% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/  Set COAP resource path
252 252  
253 253  
254 254  
... ... @@ -256,6 +256,8 @@
256 256  
257 257  (((
258 258  For parameter description, please refer to AT command set
262 +
263 +
259 259  )))
260 260  
261 261  [[image:1657330452568-615.png]]
... ... @@ -264,6 +264,8 @@
264 264  
265 265  (((
266 266  After configure the server address and (% style="color:green" %)**reset the device**(%%) (via AT+ATZ ), NDDS75 will start to uplink sensor values to CoAP server.
272 +
273 +
267 267  )))
268 268  
269 269  [[image:1657330472797-498.png]]
... ... @@ -273,9 +273,9 @@
273 273  === 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
274 274  
275 275  
276 -* (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink
277 -* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
278 -* (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/ If the server does not respond, this command is unnecessary
283 +* (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/  Set to use UDP protocol to uplink
284 +* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/  to set UDP server address and port
285 +* (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/  If the server does not respond, this command is unnecessary
279 279  
280 280  [[image:1657330501006-241.png]]
281 281  
... ... @@ -287,13 +287,13 @@
287 287  === 2.2.6 Use MQTT protocol to uplink data ===
288 288  
289 289  
290 -* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
291 -* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
292 -* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
293 -* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/Set the username of MQTT
294 -* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/Set the password of MQTT
295 -* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/Set the sending topic of MQTT
296 -* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/Set the subscription topic of MQTT
297 +* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/  Set to use MQTT protocol to uplink
298 +* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/  Set MQTT server address and port
299 +* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/  Set up the CLIENT of MQTT
300 +* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/  Set the username of MQTT
301 +* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/  Set the password of MQTT
302 +* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/  Set the sending topic of MQTT
303 +* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/  Set the subscription topic of MQTT
297 297  
298 298  [[image:1657249978444-674.png]]
299 299  
... ... @@ -310,8 +310,8 @@
310 310  === 2.2.7 Use TCP protocol to uplink data ===
311 311  
312 312  
313 -* (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/ Set to use TCP protocol to uplink
314 -* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/ to set TCP server address and port
320 +* (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/  Set to use TCP protocol to uplink
321 +* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/  to set TCP server address and port
315 315  
316 316  [[image:image-20220709093918-1.png]]
317 317  
... ... @@ -325,24 +325,29 @@
325 325  
326 326  User can use below command to change the (% style="color:green" %)**uplink interval**.
327 327  
328 -* (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
335 +* (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/  Set Update Interval to 600s
329 329  
330 330  (((
331 -(% style="color:red" %)**NOTE: By default, the device will send an uplink message every 1 hour.**
332 -
333 333  
339 +
340 +
341 +(% style="color:red" %)**NOTE:**
342 +
343 +(% style="color:red" %)**1. By default, the device will send an uplink message every 1 hour.**
344 +
345 +(% style="color:red" %)**2. When the firmware version is v1.3.2 and later firmware:**
334 334  )))
335 335  
336 -**NOTE:When the firmware version is v1.3.2 and later firmware:**
348 +(% style="color:red" %)**By default, the device will send an uplink message every 2 hours. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).**
337 337  
338 -**By default, the device will send an uplink message every 2 hours. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).**
339 339  
340 340  
341 341  == 2.3  Uplink Payload ==
342 342  
343 343  
344 -=== 2.3.1 Before Firmware 1.3.2 ===
355 +=== 2.3.1  Before Firmware v1.3.2 ===
345 345  
357 +
346 346  In this mode, uplink payload includes in total 14 bytes
347 347  
348 348  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %)
... ... @@ -352,7 +352,7 @@
352 352  |(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:41px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:120px" %)[[Distance (unit: mm)>>||anchor="H2.4.5A0Distance"]]|(% style="width:80px" %)[[Interrupt>>||anchor="H2.4.6A0DigitalInterrupt"]]
353 353  
354 354  (((
355 -If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS751 uplink data.
367 +If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS75 uplink data.
356 356  )))
357 357  
358 358  
... ... @@ -359,64 +359,70 @@
359 359  [[image:1657331036973-987.png]]
360 360  
361 361  
362 -(((
363 -The payload is ASCII string, representative same HEX:
364 -)))
365 365  
366 -(((
367 -0x72403155615900640c6c19029200 where:
368 -)))
375 +The payload is **ASCII** string, representative same HEX:
369 369  
370 -* (((
371 -Device ID: 0x724031556159 = 724031556159
372 -)))
373 -* (((
374 -Version: 0x0064=100=1.0.0
375 -)))
377 +(% style="background-color:yellow" %)**0x 724031556159 0064 0c6c 19 0292 00 **
376 376  
377 -* (((
378 -BAT: 0x0c6c = 3180 mV = 3.180V
379 -)))
380 -* (((
381 -Signal: 0x19 = 25
382 -)))
383 -* (((
384 -Distance: 0x0292= 658 mm
385 -)))
386 -* (((
387 -Interrupt: 0x00 = 0
379 +**where :**
388 388  
389 -
390 -)))
381 +* (% style="color:#037691" %)**Device ID:**(%%) 0x724031556159 = 724031556159
391 391  
392 -=== **2.3.2 Since firmware v1.3.2** ===
383 +* (% style="color:#037691" %)**Version:**(%%)  0x0064=100=1.0.0
393 393  
385 +* (% style="color:#037691" %)**BAT:** (%%) 0x0c6c = 3180 mV = 3.180V
386 +
387 +* (% style="color:#037691" %)**Signal:**(%%)  0x19 = 25
388 +
389 +* (% style="color:#037691" %)**Distance:**  (%%)0x0292= 658 mm
390 +
391 +* (% style="color:#037691" %)**Interrupt:**(%%) 0x00 = 0
392 +
393 +
394 +
395 +=== 2.3.2  Since firmware v1.3.2 ===
396 +
397 +
394 394  In this mode, uplink payload includes 69 bytes in total by default.
395 395  
396 396  Each time the device uploads a data package, 8 sets of recorded data will be attached. Up to 32 sets of recorded data can be uploaded.
397 397  
398 -|**Size(bytes)**|**8**|2|2|1|1|1|2|4|2|4
399 -|**Value**|Device ID|Ver|BAT|Signal Strength|MOD|Interrupt|Distance|Timestamp|Distance|Timestamp.......
402 +(% border="1" style="background-color:#ffffcc; color:green; width:490px" %)
403 +|=(% scope="row" style="width: 60px;" %)**Size(bytes)**|(% style="width:40px" %)**8**|(% style="width:25px" %)**2**|(% style="width:25px" %)**2**|(% style="width:60px" %)**1**|(% style="width:25px" %)**1**|(% style="width:40px" %)**1**|(% style="width:40px" %)**2**|(% style="width:70px" %)**4**|(% style="width:40px" %)**2**|(% style="width:60px" %)**4**
404 +|=(% style="width: 95px;" %)**Value**|(% style="width:84px" %)Device ID|(% style="width:44px" %)Ver|(% style="width:48px" %)BAT|(% style="width:123px" %)Signal Strength|(% style="width:55px" %)MOD|(% style="width:80px" %)Interrupt|(% style="width:77px" %)Distance|(% style="width:94px" %)Timestamp|(% style="width:77px" %)Distance|(% style="width:116px" %)Timestamp.......
400 400  
401 401  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS75 uplink data.
402 402  
403 403  [[image:image-20220908175246-1.png]]
404 404  
410 +
405 405  The payload is ASCII string, representative same HEX:
406 406  
407 -0x(% style="color:red" %)f867787050213317(% style="color:blue" %)0084(% style="color:green" %)0cf4(% style="color:red" %)1e(% style="color:blue" %)01(% style="color:green" %)00(% style="color:red" %)**//00396319bb32//**00396319baf0//**00396319ba3c**//00396319b988//**00396319b8d4**//00396319b820//**00396319b76c**//00396319b6b8//**00396319b604**//(%%) where:
413 +**0x (% style="color:red" %)f867787050213317 (% style="color:blue" %)0084 (% style="color:green" %)0cf4 (% style="color:#00b0f0" %)1e (% style="color:#7030a0" %)01 (% style="color:#d60093" %)00(% style="color:#a14d07" %) 0039 (% style="color:#0020b0" %)6315537b (% style="color:#663300" %)00396319baf0 00396319ba3c 00396319b988 00396319b8d4 00396319b820 00396319b76c 00396319b6b8 00396319b604 (%%)**
408 408  
409 -* (% style="color:green" %)Device ID: f867787050213317 = f867787050213317
410 -* (% style="color:red" %)Version: 0x0084=132=1.3.2
411 -* (% style="color:green" %)BAT: 0x0cf4 = 3316 mV = 3.316V
412 -* (% style="color:blue" %)Singal: 0x1e = 30
413 -* (% style="color:red" %)Mod: 0x01 = 1
414 -* Interrupt: 0x00= 0
415 -* Distance: 0x0039= 57 = 57
416 -* Time stamp : 0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
417 -* Distance,Time stamp : 00396319baf0
418 -* (% style="color:red" %) 8 sets of recorded data: Distance,Time stamp : //**00396319ba3c**//,.......
415 +**where:**
419 419  
417 +* (% style="color:#037691" %)**Device ID:**(%%) f867787050213317 = f867787050213317
418 +
419 +* (% style="color:#037691" %)**Version:**(%%) 0x0084=132=1.3.2
420 +
421 +* (% style="color:#037691" %)**BAT:**(%%)  0x0cf4 = 3316 mV = 3.316V
422 +
423 +* (% style="color:#037691" %)**Singal:**(%%)  0x1e = 30
424 +
425 +* (% style="color:#037691" %)**Mod:**(%%)**     **0x01 = 1
426 +
427 +* (% style="color:#037691" %)**Interrupt:**(%%) 0x00= 0
428 +
429 +* (% style="color:#037691" %)**Distance:**(%%) 0x0039= 57 = 57
430 +
431 +* (% style="color:#037691" %)**Time stamp:**(%%) 0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
432 +
433 +* (% style="color:#037691" %)**Distance,Time stamp:**(%%) 00396319baf0
434 +
435 +* (% style="color:#037691" %)**8 sets of recorded data: Distance,Time stamp :**(%%) //**00396319ba3c**//,.......
436 +
437 +
420 420  == 2.4  Payload Explanation and Sensor Interface ==
421 421  
422 422  
... ... @@ -434,7 +434,7 @@
434 434  )))
435 435  
436 436  (((
437 -**Example:**
455 +(% style="color:blue" %)**Example :**
438 438  )))
439 439  
440 440  (((
... ... @@ -442,20 +442,23 @@
442 442  )))
443 443  
444 444  (((
445 -The Device ID is stored in a none-erase area, Upgrade the firmware or run **AT+FDR** won't erase Device ID.
463 +The Device ID is stored in a none-erase area, Upgrade the firmware or run (% style="color:blue" %)**AT+FDR**(%%) won't erase Device ID.
446 446  )))
447 447  
448 448  
449 -**NOTE:When the firmware version is v1.3.2 and later firmware:**
467 +(% style="color:red" %)**NOTE: When the firmware version is v1.3.2 and later firmware:**
450 450  
451 -By default, the Device ID equal to the last 15 bits of IMEI.
469 +(% style="color:red" %)**By default, the Device ID equal to the last 15 bits of IMEI.**
452 452  
453 -User can use **AT+DEUI** to set Device ID
471 +User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
454 454  
455 -**Example:**
456 456  
474 +(% style="color:blue" %)**Example :**
475 +
457 457  AT+DEUI=868411056754138
458 458  
478 +
479 +
459 459  === 2.4.2  Version Info ===
460 460  
461 461  
... ... @@ -550,7 +550,7 @@
550 550  )))
551 551  
552 552  (((
553 -(% style="color:blue" %)**AT+INTMOD=3 **(%%) ~/~/(more info about INMOD please refer [[**AT Command Manual**>>url:https://www.dragino.com/downloads/downloads/NB-IoT/NBSN95/DRAGINO_NBSN95-NB_AT%20Commands_v1.1.0.pdf]])**.**
574 +(% style="color:blue" %)**AT+INTMOD=3 **(%%) ~/~/  (more info about INMOD please refer [[**AT Command Manual**>>url:https://www.dragino.com/downloads/downloads/NB-IoT/NBSN95/DRAGINO_NBSN95-NB_AT%20Commands_v1.1.0.pdf]])**.**
554 554  )))
555 555  
556 556  
... ... @@ -651,12 +651,14 @@
651 651  )))
652 652  
653 653  
654 -== 2.6 Distance alarm function(Since firmware v1.3.2) ==
655 655  
656 -➢ AT Command:
676 +== 2.6  Distance alarm function(Since firmware v1.3.2) ==
657 657  
658 -AT+ LDDSALARM=min,max
659 659  
679 +(% style="color:blue" %)** ➢ AT Command:**
680 +
681 +(% style="color:#037691" %)** AT+ LDDSALARM=min,max**
682 +
660 660  ² When min=0, and max≠0, Alarm higher than max
661 661  
662 662  ² When min≠0, and max=0, Alarm lower than min
... ... @@ -663,29 +663,39 @@
663 663  
664 664  ² When min≠0 and max≠0, Alarm higher than max or lower than min
665 665  
666 -Example:
667 667  
668 -AT+ LDDSALARM=260,2000 ~/~/ Alarm when distance lower than 260.
690 +(% style="color:blue" %)** Example:**
669 669  
692 +**AT+ LDDSALARM=260,2000**  ~/~/ Alarm when distance lower than 260.
670 670  
671 -== 2.7 Set the number of data to be uploaded and the recording time ==
672 672  
673 -➢ AT Command:
674 674  
675 -AT+TR=900  ~/~/The unit is seconds, and the default is to record data once every 900 seconds.( The minimum can be set to 180 seconds)
696 +== 2.7  Set the number of data to be uploaded and the recording time ==
676 676  
677 -AT+NOUD=8  ~/~/The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
678 678  
679 -== 2.8 Read or Clear cached data ==
699 +(% style="color:blue" %)** ➢ AT Command:**
680 680  
681 -➢ AT Command:
701 +* (% style="color:#037691" %)** AT+TR=900** (%%) ~/~/ The unit is seconds, and the default is to record data once every 900 seconds.( The minimum can be set to 180 seconds)
702 +* (% style="color:#037691" %)** AT+NOUD=8**             (%%) ~/~/  The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
682 682  
683 -AT+CDP ~/~/ Read cached data
704 + The diagram below explains the relationship between TR, NOUD, and TDC more clearly**:**
684 684  
706 +[[image:image-20221009001114-1.png||height="687" width="955"]]
707 +
708 +
709 +
710 +== 2.8  Read or Clear cached data ==
711 +
712 +
713 +(% style="color:blue" %)** ➢ AT Command:**
714 +
715 +* (% style="color:#037691" %)** AT+CDP ** (%%) ~/~/  Read cached data
716 +* (% style="color:#037691" %)** AT+CDP=0**  (%%) ~/~/  Clear cached data
717 +
685 685  [[image:image-20220908175333-2.png]]
686 686  
687 -AT+CDP=0 ~/~/ Clear cached data
688 688  
721 +
689 689  == 2.9  ​LED Indicator ==
690 690  
691 691  
... ... @@ -831,90 +831,90 @@
831 831  See this link for detail:  [[https:~~/~~/www.dropbox.com/sh/aaq2xcl0bzfu0yd/AAAEAHRa7Io_465ds4Y7-F3aa?dl=0>>https://www.dropbox.com/sh/aaq2xcl0bzfu0yd/AAAEAHRa7Io_465ds4Y7-F3aa?dl=0]]
832 832  
833 833  
834 -AT+<CMD>?  : Help on <CMD>
867 +AT+<CMD>?  :  Help on <CMD>
835 835  
836 -AT+<CMD>         : Run <CMD>
869 +AT+<CMD>         :  Run <CMD>
837 837  
838 -AT+<CMD>=<value> : Set the value
871 +AT+<CMD>=<value> :  Set the value
839 839  
840 -AT+<CMD>=?  : Get the value
873 +AT+<CMD>=?  :  Get the value
841 841  
842 842  
843 843  (% style="color:#037691" %)**General Commands**(%%)      
844 844  
845 -AT  : Attention       
878 +AT  :  Attention       
846 846  
847 -AT?  : Short Help     
880 +AT?  :  Short Help     
848 848  
849 -ATZ  : MCU Reset    
882 +ATZ  :  MCU Reset    
850 850  
851 -AT+TDC  : Application Data Transmission Interval
884 +AT+TDC  :  Application Data Transmission Interval
852 852  
853 -AT+CFG  : Print all configurations
886 +AT+CFG  :  Print all configurations
854 854  
855 -AT+CFGMOD           : Working mode selection
888 +AT+CFGMOD           :  Working mode selection
856 856  
857 -AT+INTMOD            : Set the trigger interrupt mode
890 +AT+INTMOD            :  Set the trigger interrupt mode
858 858  
859 -AT+5VT  : Set extend the time of 5V power  
892 +AT+5VT  :  Set extend the time of 5V power  
860 860  
861 -AT+PRO  : Choose agreement
894 +AT+PRO  :  Choose agreement
862 862  
863 -AT+WEIGRE  : Get weight or set weight to 0
896 +AT+WEIGRE  :  Get weight or set weight to 0
864 864  
865 -AT+WEIGAP  : Get or Set the GapValue of weight
898 +AT+WEIGAP  :  Get or Set the GapValue of weight
866 866  
867 -AT+RXDL  : Extend the sending and receiving time
900 +AT+RXDL  :  Extend the sending and receiving time
868 868  
869 -AT+CNTFAC  : Get or set counting parameters
902 +AT+CNTFAC  :  Get or set counting parameters
870 870  
871 -AT+SERVADDR  : Server Address
904 +AT+SERVADDR  :  Server Address
872 872  
873 -AT+TR      : Get or Set record time"
906 +AT+TR  :  Get or Set record time"
874 874  
875 -AT+APN     : Get or set the APN
908 +AT+APN     :  Get or set the APN
876 876  
877 -AT+FBAND   : Get or Set whether to automatically modify the frequency band
910 +AT+FBAND  :  Get or Set whether to automatically modify the frequency band
878 878  
879 -AT+DNSCFG  : Get or Set DNS Server
912 +AT+DNSCFG  : Get or Set DNS Server
880 880  
881 -AT+GETSENSORVALUE   : Returns the current sensor measurement
914 +AT+GETSENSORVALUE   :  Returns the current sensor measurement
882 882  
883 -AT+NOUD      : Get or Set the number of data to be uploaded
916 +AT+NOUD  :  Get or Set the number of data to be uploaded
884 884  
885 -AT+CDP     : Read or Clear cached data
918 +AT+CDP     :  Read or Clear cached data
886 886  
887 -AT+LDDSALARM : Get or Set alarm of distance
920 +AT+LDDSALARM :  Get or Set alarm of distance
888 888  
889 889  
890 890  (% style="color:#037691" %)**COAP Management**      
891 891  
892 -AT+URI            : Resource parameters
925 +AT+URI            :  Resource parameters
893 893  
894 894  
895 895  (% style="color:#037691" %)**UDP Management**
896 896  
897 -AT+CFM          : Upload confirmation mode (only valid for UDP)
930 +AT+CFM          :  Upload confirmation mode (only valid for UDP)
898 898  
899 899  
900 900  (% style="color:#037691" %)**MQTT Management**
901 901  
902 -AT+CLIENT               : Get or Set MQTT client
935 +AT+CLIENT  :  Get or Set MQTT client
903 903  
904 -AT+UNAME  : Get or Set MQTT Username
937 +AT+UNAME  :  Get or Set MQTT Username
905 905  
906 -AT+PWD                  : Get or Set MQTT password
939 +AT+PWD  :  Get or Set MQTT password
907 907  
908 -AT+PUBTOPIC  : Get or Set MQTT publish topic
941 +AT+PUBTOPIC  :  Get or Set MQTT publish topic
909 909  
910 -AT+SUBTOPIC  : Get or Set MQTT subscription topic
943 +AT+SUBTOPIC  :  Get or Set MQTT subscription topic
911 911  
912 912  
913 913  (% style="color:#037691" %)**Information**          
914 914  
915 -AT+FDR  : Factory Data Reset
948 +AT+FDR  :  Factory Data Reset
916 916  
917 -AT+PWORD  : Serial Access Password
950 +AT+PWORD  :  Serial Access Password
918 918  
919 919  
920 920  
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