<
From version < 73.1 >
edited by Xiaoling
on 2022/12/07 17:07
To version < 70.1 >
edited by Xiaoling
on 2022/11/18 10:35
>
Change comment: Uploaded new attachment "image-20221118103547-9.png", version {1}

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -NMDS200 - NB-IoT Microwave Radar Distance Sensor User Manual
1 +NDS03A - Outdoor NB-IoT Open/Close Door Sensor User Manual
Content
... ... @@ -1,16 +1,23 @@
1 1  (% style="text-align:center" %)
2 -[[image:LMDS200_10.jpg]]
2 +[[image:image-20221117105556-1.png]]
3 3  
4 4  
5 +
6 +
7 +
8 +
9 +
5 5  **Table of Contents:**
6 6  
12 +{{toc/}}
7 7  
8 8  
9 9  
10 10  
17 +
11 11  = 1.  Introduction =
12 12  
13 -== 1.1 ​ What is NMDS200 NB-IoT Microwave Radar Distance Sensor ==
20 +== 1.1 ​ What is NDS03A NB-IoT Open/Close Door Sensor ==
14 14  
15 15  
16 16  (((
... ... @@ -34,14 +34,10 @@
34 34  )))
35 35  
36 36  (((
37 -NarrowBand-Internet of Things (NB-IoT) is a (% style="color:blue" %)**standards-based low power wide area (LPWA) technology**(%%) developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity, and spectrum efficiency, especially in deep coverage.
44 +NarrowBand-Internet of Things (NB-IoT) is a (% style="color:blue" %)**standards-based low power wide area (LPWA) technologyTCP, MQTT, UDP, and CoAP**(%%) for different application requirements.
38 38  )))
39 39  
40 40  (((
41 -NDS03A supports different uplink methods including (% style="color:blue" %)**TCP, MQTT, UDP, and CoAP**(%%) for different application requirements.
42 -)))
43 -
44 -(((
45 45  NDS03A is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), It is designed for long-term use of up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method)
46 46  )))
47 47  
... ... @@ -69,7 +69,6 @@
69 69  * Micro SIM card slot for NB-IoT SIM
70 70  * 8500mAh Battery for long-term use
71 71  
72 -
73 73  == 1.3  Storage & Operation ==
74 74  
75 75  
... ... @@ -106,14 +106,13 @@
106 106  
107 107  (% style="color:blue" %)**NB-IoT Spec:**
108 108  
109 -* B1 @H-FDD: 2100MHz
110 -* B3 @H-FDD: 1800MHz
111 -* B8 @H-FDD: 900MHz
112 -* B5 @H-FDD: 850MHz
113 -* B20 @H-FDD: 800MHz
114 -* B28 @H-FDD: 700MHz
111 +* - B1 @H-FDD: 2100MHz
112 +* - B3 @H-FDD: 1800MHz
113 +* - B8 @H-FDD: 900MHz
114 +* - B5 @H-FDD: 850MHz
115 +* - B20 @H-FDD: 800MHz
116 +* - B28 @H-FDD: 700MHz
115 115  
116 -
117 117  == 1.7  Pin Definitions and Switch ==
118 118  
119 119  
... ... @@ -126,6 +126,7 @@
126 126  The device is pre-configured to connect to a door sensor. The other pins are not used. If user wants to know more about other pins, please refer to the user manual of LSN50v2 at:  [[https:~~/~~/www.dropbox.com/sh/djkxs7mr17y94mi/AABVlWbM9uzK9OA3mXyAT10Za?dl=0>>https://www.dropbox.com/sh/djkxs7mr17y94mi/AABVlWbM9uzK9OA3mXyAT10Za?dl=0]]
127 127  
128 128  
130 +
129 129  === 1.7.2  Jumper JP2(Power ON/OFF) ===
130 130  
131 131  
... ... @@ -132,6 +132,7 @@
132 132  Power on Device when putting this jumper.
133 133  
134 134  
137 +
135 135  === 1.7.3  BOOT MODE / SW1 ===
136 136  
137 137  
... ... @@ -140,6 +140,7 @@
140 140  2)  Flash:  working mode, the device starts to work for NB-IoT connection and sends out console output for further debugging.
141 141  
142 142  
146 +
143 143  === 1.7.4  Reset Button ===
144 144  
145 145  
... ... @@ -146,6 +146,7 @@
146 146  Press to reboot the device.
147 147  
148 148  
153 +
149 149  === 1.7.5  LED ===
150 150  
151 151  
... ... @@ -156,6 +156,7 @@
156 156  2.  Send an uplink packet
157 157  
158 158  
164 +
159 159  == 1.8  Magnet Distance ==
160 160  
161 161  
... ... @@ -164,6 +164,7 @@
164 164  (% style="color:blue" %)**Iron Door:**(%%)**    **30 ~~ 45mm
165 165  
166 166  
173 +
167 167  = 2.  Use NDS03A to communicate with IoT Server =
168 168  
169 169  == 2.1  How it works ==
... ... @@ -176,6 +176,7 @@
176 176  [[image:image-20221021110615-5.png]]
177 177  
178 178  
186 +
179 179  == 2.2 ​ Configure NDS03A ==
180 180  
181 181  === 2.2.1 Test Requirement ===
... ... @@ -191,7 +191,9 @@
191 191  
192 192  [[image:image-20221117142300-1.png]]
193 193  
202 + ​
194 194  
204 +
195 195  === 2.2.2 Insert NB-IoT SIM card ===
196 196  
197 197  
... ... @@ -202,6 +202,7 @@
202 202  [[image:image-20221021110745-6.png]] ​
203 203  
204 204  
215 +
205 205  === 2.2.3 Connect USB – TTL to NDS03A and configure it ===
206 206  
207 207  
... ... @@ -260,9 +260,10 @@
260 260  
261 261  After configuring the server address and (% style="color:green" %)**reset NDS03A**(%%) (via AT+ATZ ), NDS03A will start to uplink sensor values to the CoAP server.
262 262  
263 -[[image:image-20221118103547-9.png||height="605" width="837"]] ​
274 +[[image:image-20221021110956-9.png]] ​
264 264  
265 265  
277 +
266 266  === 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
267 267  
268 268  
... ... @@ -281,6 +281,7 @@
281 281  
282 282  ​
283 283  
296 +
284 284  === 2.2.6 Use MQTT protocol to uplink data ===
285 285  
286 286  
... ... @@ -300,10 +300,10 @@
300 300  
301 301  * (% style="color:#037691" %)**AT+SUBTOPIC=NSE01_SUB          ** (%%) ~/~/  Set the subscription topic of MQTT
302 302  
303 -​ [[image:image-20221118103445-7.png]]
316 +​ [[image:image-20221021111058-12.png]]
304 304  
305 305  
306 -[[image:image-20221118103453-8.png||height="608" width="841"]]
319 +[[image:image-20221021111201-16.png||height="472" width="653"]]
307 307  
308 308  ​
309 309  
... ... @@ -310,6 +310,7 @@
310 310  MQTT protocol has a much higher power consumption compare with UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.
311 311  
312 312  
326 +
313 313  === 2.2.7 Use TCP protocol to uplink data ===
314 314  
315 315  
... ... @@ -325,6 +325,7 @@
325 325  
326 326  ​
327 327  
342 +
328 328  === 2.2.8 Change Update Interval ===
329 329  
330 330  
... ... @@ -337,6 +337,7 @@
337 337  1.  By default, the device will send an uplink message every 4 hour.
338 338  
339 339  
355 +
340 340  == 2.3  Uplink Payload ==
341 341  
342 342  
... ... @@ -346,12 +346,12 @@
346 346  
347 347  (% style="color:blue" %)**When AT+TTRCHANNEL=1:**
348 348  
349 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
350 -|=(% scope="row" style="width: 50px;" %)**Size(bytes)**|(% style="width:50px" %)**8**|(% style="width:20px" %)**2**|(% style="width:20px" %)**2**|(% style="width:65px" %)**1**|(% style="width:25px" %)**1**|(% style="width:50px" %)**1**|(% style="width:60px" %)**1**|(% style="width:90px" %)**3**|(% style="width:100px" %)**3**
365 +(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:693px" %)
366 +|=(% scope="row" style="width: 93px;" %)**Size(bytes)**|(% style="width:67px" %)**8**|(% style="width:40px" %)**2**|(% style="width:45px" %)**2**|(% style="width:75px" %)**1**|(% style="width:54px" %)**1**|(% style="width:62px" %)**1**|(% style="width:60px" %)**1**|(% style="width:94px" %)**3**|(% style="width:93px" %)**3**
351 351  |=(% style="width: 93px;" %)**Value**|(% style="width:67px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:40px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:45px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:75px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:54px" %)MOD|(% style="width:62px" %)Door Status|(% style="width:60px" %)[[Alarm Status>>||anchor="H2.7A0AlarmBaseonTimeout"]]|(% style="width:94px" %)door open num(pb14) |(% style="width:93px" %)last open time(pb14)
352 352  
353 -(% border="1.5" style="background-color:#ffffcc; color:green; width:450px" %)
354 -|(% style="width:50px" %)**4**|(% style="width:90px" %)**1**|(% style="width:90px" %)**3**|(% style="width:90px" %)**3**|(% style="width:60px" %)4|(% style="width:50px" %)(((
369 +(% border="1.5" style="background-color:#ffffcc; color:green; width:490px" %)
370 +|(% style="width:50px" %)**4**|(% style="width:70px" %)**1**|(% style="width:50px" %)**3**|(% style="width:99px" %)**3**|(% style="width:67px" %)4|(% style="width:50px" %)(((
355 355  **1-32 group**
356 356  )))
357 357  |(% style="width:98px" %)[[Time stamp>>||anchor="H2.4.7A0Timestamp"]]|(% style="width:115px" %)Door Status(pb14)|(% style="width:92px" %)door open num(pb14)|(% style="width:99px" %)last open time(pb14)|(% style="width:67px" %)Time stamp|(% style="width:74px" %)...
... ... @@ -359,19 +359,19 @@
359 359  (% style="color:blue" %)**When AT+TTRCHANNEL=2:**
360 360  
361 361  
362 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
363 -|=(% scope="row" style="width: 50px;" %)**Size(bytes)**|(% style="width:45px" %)**8**|(% style="width:20px" %)**2**|(% style="width:20px" %)**2**|(% style="width:65px" %)**1**|(% style="width:25px" %)**1**|(% style="width:60px" %)**1**|(% style="width:60px" %)**1**|(% style="width:87px" %)**3**|(% style="width:80px" %)**3**
378 +(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:520px" %)
379 +|=(% scope="row" style="width: 96px;" %)**Size(bytes)**|(% style="width:66px" %)**8**|(% style="width:40px" %)**2**|(% style="width:46px" %)**2**|(% style="width:70px" %)**1**|(% style="width:54px" %)**1**|(% style="width:55px" %)**1**|(% style="width:57px" %)**1**|(% style="width:86px" %)**3**|(% style="width:82px" %)**3**
364 364  |=(% style="width: 96px;" %)**Value**|(% style="width:66px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:40px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:70px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:54px" %)MOD|(% style="width:55px" %)Door Status(pb14)|(% style="width:57px" %)[[Alarm Status>>||anchor="H2.7A0AlarmBaseonTimeout"]](pb14)|(% style="width:86px" %)door open num(pb14) |(% style="width:82px" %)last open time(pb14)
365 365  
366 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
367 -|(% style="width:80px" %)**1**|(% style="width:80px" %)**1**|(% style="width:88px" %)**3**|(% style="width:81px" %)**3**|(% style="width:50px" %)**4**|(% style="width:75px" %)**1**|(% style="width:75px" %)**3**
382 +(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:520px" %)
383 +|(% style="width:59px" %)**1**|(% style="width:67px" %)**1**|(% style="width:88px" %)**3**|(% style="width:81px" %)**3**|(% style="width:50px" %)**4**|(% style="width:66px" %)**1**|(% style="width:92px" %)**3**
368 368  |(% style="width:59px" %)Door Status(pb15)|(% style="width:67px" %)[[Alarm Status>>||anchor="H2.7A0AlarmBaseonTimeout"]](pb15)|(% style="width:88px" %)door open num(pb15)|(% style="width:81px" %)last open time(pb15)|(% style="width:50px" %)[[Time stamp>>||anchor="H2.4.7A0Timestamp"]]|(% style="width:66px" %)Door Status(pb14)|(% style="width:92px" %)door open num(pb14)
369 369  
370 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
371 -|(% style="width:100px" %)**3**|(% style="width:80px" %)**1**|(% style="width:90px" %)**3**|(% style="width:90px" %)**3**|(% style="width:70px" %)**4**|(% style="width:80px" %)(((
386 +(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:500px" %)
387 +|(% style="width:102px" %)**3**|(% style="width:93px" %)**1**|(% style="width:91px" %)**3**|(% style="width:88px" %)**3**|(% style="width:63px" %)**4**|(% style="width:87px" %)(((
372 372  **1-32 group**
373 373  )))
374 -|(% style="width:102px" %)last open time(pb14)|(% style="width:93px" %)Door Status(pb15)|(% style="width:91px" %)door open num(pb15)|(% style="width:100px" %)last open time(pb15)|(% style="width:63px" %)[[Time stamp>>||anchor="H2.4.7A0Timestamp"]]|(% style="width:87px" %)......
390 +|(% style="width:102px" %)last open time (pb14)|(% style="width:93px" %)Door Status(pb15)|(% style="width:91px" %)door open num(pb15)|(% style="width:88px" %)last open time(pb15)|(% style="width:63px" %)[[Time stamp>>||anchor="H2.4.7A0Timestamp"]]|(% style="width:87px" %)......
375 375  
376 376  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDS03A uplink data.
377 377  
... ... @@ -386,25 +386,24 @@
386 386  
387 387  * (% style="color:#037691" %)**Device ID:**(%%) 0x f867787050213317 = f867787050213317
388 388  
389 -* (% style="color:#037691" %)**Version:**(%%)  0x0064=100=1.0.0
405 +* (% style="color:#037691" %)**Version:**(%%) 0x0064=100=1.0.0
390 390  
391 391  * (% style="color:#037691" %)**BAT :**(%%)  0x0ccf = 3279 mV = 3.279V
392 392  
393 393  * (% style="color:#037691" %)**Singal: **(%%)0x19 = 25
394 394  
395 -* (% style="color:#037691" %)**Mod:**(%%)  0x01 = 1
411 +* (% style="color:#037691" %)**Mod:**(%%) 0x01 = 1
396 396  
397 -* (% style="color:#037691" %)**Door Status:**(%%)  0x00=0
413 +* (% style="color:#037691" %)**Door Status:**(%%) 0x00=0
398 398  
399 399  * (% style="color:#037691" %)**Alarm Status: **(%%)0x00 =0
400 400  
401 401  * (% style="color:#037691" %)**door open num: **(%%)0x000016 =22
402 402  
403 -* (% style="color:#037691" %)**last open time:   **(%%)0x000017 =23
419 +* (% style="color:#037691" %)**last open time: **(%%)0x000017 =23
404 404  
405 405  * (% style="color:#037691" %)**Timestamp:**(%%) 0x637590df =1668649183 (Unix Time)
406 406  
407 -
408 408  == 2.4  Payload Explanation and Sensor Interface ==
409 409  
410 410  === 2.4.1  Device ID ===
... ... @@ -479,6 +479,7 @@
479 479  Timestamp : 0x6315537b =1662342011
480 480  
481 481  
497 +
482 482  === 2.4.8  Switch Dual Channel Mode ===
483 483  
484 484  
... ... @@ -512,6 +512,7 @@
512 512  Downlink Payload: 06000003, Set AT+INTMOD=3
513 513  
514 514  
531 +
515 515  == 2.6  ​LED Indicator ==
516 516  
517 517  
... ... @@ -521,7 +521,6 @@
521 521  * After NDS03A join NB-IoT network. The LED will be ON for 3 seconds.
522 522  * For each uplink probe, LED will be on for 500ms.
523 523  
524 -
525 525  == 2.7  Alarm Base on Timeout ==
526 526  
527 527  
... ... @@ -581,6 +581,7 @@
581 581  [[image:image-20221021111527-19.png]]
582 582  
583 583  
600 +
584 584  == 2.10  Count Mod ==
585 585  
586 586  
... ... @@ -589,6 +589,7 @@
589 589  [[image:image-20221118092935-1.png]]
590 590  
591 591  
609 +
592 592  == 2.11  Interrupt Pin Channel Mod ==
593 593  
594 594  
... ... @@ -597,6 +597,7 @@
597 597  [[image:image-20221118093144-2.png]]
598 598  
599 599  
618 +
600 600  == 2.12 TTRIG1/2 timeout status alarm ==
601 601  
602 602  
... ... @@ -607,6 +607,7 @@
607 607  [[image:image-20221118093512-3.png]]
608 608  
609 609  
629 +
610 610  == 2.13  Select counting mode ==
611 611  
612 612  
... ... @@ -619,6 +619,8 @@
619 619  [[image:image-20221118093658-4.png]]
620 620  
621 621  
642 +
643 +
622 622  == 2.14  Set the number of data to be uploaded and the recording time ==
623 623  
624 624  
... ... @@ -641,16 +641,19 @@
641 641  [[image:image-20221118094227-5.png]]
642 642  
643 643  
666 +
644 644  == 2.16  ​Firmware Change Log ==
645 645  
646 646  
647 -Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/hacq385w6qgnonr/AAC3D79GFGF1JdZUIzNegn2Ha?dl=0>>https://www.dropbox.com/sh/hacq385w6qgnonr/AAC3D79GFGF1JdZUIzNegn2Ha?dl=0]]
670 +Download URL & Firmware Change log:  [[https:~~/~~/www.dropbox.com/sh/8p5nuvo6gh7je4n/AAAMP7MMusgbXMz9Ik7Ls03Ga?dl=0>>https://www.dropbox.com/sh/8p5nuvo6gh7je4n/AAAMP7MMusgbXMz9Ik7Ls03Ga?dl=0]]
648 648  
649 649  Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
650 650  
651 651  
675 +
652 652  == 2.17  ​Battery Analysis ==
653 653  
678 +
654 654  === 2.17.1  ​Battery Type ===
655 655  
656 656  
... ... @@ -669,6 +669,7 @@
669 669  [[image:image-20221021111911-26.png]] ​
670 670  
671 671  
697 +
672 672  === 2.17.2  Power consumption Analyze ===
673 673  
674 674  
... ... @@ -691,6 +691,7 @@
691 691  [[image:1666596205057-567.png]] ​
692 692  
693 693  
720 +
694 694  === 2.17.3  ​Battery Note ===
695 695  
696 696  
... ... @@ -697,6 +697,7 @@
697 697  The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
698 698  
699 699  
727 +
700 700  === 2.17.4  Replace the battery ===
701 701  
702 702  
... ... @@ -703,6 +703,7 @@
703 703  The default battery pack of NDS03A includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence without the SPC1520 capacitor, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes).
704 704  
705 705  
734 +
706 706  = 3. ​ Access NB-IoT Module =
707 707  
708 708  
... ... @@ -710,12 +710,13 @@
710 710  
711 711  The AT Command set can refer the BC35-G NB-IoT Module AT Command: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/]] 
712 712  
713 -
714 714  [[image:image-20221118094449-6.png]] ​
715 715  
716 716  
745 +
717 717  = 4.  Using the AT Commands =
718 718  
748 +
719 719  == 4.1  Access AT Commands ==
720 720  
721 721  
... ... @@ -807,8 +807,10 @@
807 807  AT+PWORD  : Serial Access Password
808 808  
809 809  
840 +
810 810  = ​5.  FAQ =
811 811  
843 +
812 812  == 5.1 ​ How to Upgrade Firmware ==
813 813  
814 814  
... ... @@ -819,8 +819,10 @@
819 819  (% style="color:red" %)**Notice: **(% style="color:blue" %)**NDS03A** (%%)**and (% style="color:blue" %)LDS03A(%%)**(% style="color:blue" %) (%%)**share the same mother board. They use the same connection and method to update.**
820 820  
821 821  
854 +
822 822  = 6.  Trouble Shooting =
823 823  
857 +
824 824  == 6.1  ​Connection problem when uploading firmware ==
825 825  
826 826  
... ... @@ -827,6 +827,7 @@
827 827  (% style="color:blue" %)**Please see: **[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting]]
828 828  
829 829  
864 +
830 830  == 6.2  AT Command input doesn't work ==
831 831  
832 832  
... ... @@ -833,6 +833,7 @@
833 833  In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:green" %)**ENTER** (%%)while press the send key, user need to add ENTER in their string.
834 834  
835 835  
871 +
836 836  = 7. ​ Order Info =
837 837  
838 838  
... ... @@ -839,6 +839,7 @@
839 839  Part Number**:** NDS03A
840 840  
841 841  
878 +
842 842  = 8.  Packing Info =
843 843  
844 844  
... ... @@ -846,7 +846,6 @@
846 846  
847 847  * NDS03A Open/Close Door Sensor x 1
848 848  
849 -
850 850  = 9.  Support =
851 851  
852 852  
LMDS200_10.jpg
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -39.9 KB
Content
image-20221207170748-1.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -26.1 KB
Content
image-20221207170748-2.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -29.9 KB
Content
Copyright ©2010-2022 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0