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From version < 75.1 >
edited by Xiaoling
on 2022/12/07 17:32
To version < 70.2 >
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Summary

Details

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Title
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1 -NMDS200 - NB-IoT Microwave Radar Distance Sensor User Manual
1 +NDS03A - Outdoor NB-IoT Open/Close Door Sensor User Manual
Content
... ... @@ -1,35 +1,55 @@
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  (((
17 -The Dragino NMDS200 is a(% style="color:blue" %)** NB-IoT Microwave Radar distance sensor**(%%). It uses (% style="color:blue" %)**24Ghz Microwave**(%%) to detect the distance between sensor and different objects. Compare vs ultrasonic or Lidar measurement method, Microwave Radar is (% style="color:blue" %)**more reliable for condensation / dusty environment**(%%). It can sense correct distance even there is water or thick dust on top of the sensor.
24 +The Dragino NDS03A is an (% style="color:blue" %)**Open/Close NB-IoT Door Sensor**(%%). It detects door (% style="color:blue" %)**open/close status**(%%) and (% style="color:blue" %)**uplinks**(%%) to IoT server via NB-IoT network. NDS03A can connect two door sensors. user can see the door status, open duration, open counts in the IoT Server.
25 +)))
18 18  
27 +(((
28 +The NDS03A will send periodically data (% style="color:blue" %)**every 4 hours** (%%)as well as for each door open/close action. It also counts the door open times and calculates the last door open duration. Users can also disable the uplink for each open/close event, instead, NDS03A can count each open event and uplink periodically.
29 +)))
19 19  
20 -The NMDS200 can be applied to scenarios such as horizontal distance measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, etc.
31 +(((
32 +NDS03A has a (% style="color:blue" %)**Datalog feature**(%%), it will record the open/close event and the user can retrieve the history from NB-IoT.
33 +)))
21 21  
22 -NMDS200 can (% style="color:blue" %)**measure two distances**(%%): the closest object and next object behind the closest one.
35 +(((
36 +NDS03A has the(% style="color:blue" %)**open alarm feature**(%%), user can set this feature so the device will send an alarm if the door has been open for a certain time.
37 +)))
23 23  
24 -NMDS200 (% style="color:blue" %)**supports Alarm Feature**(%%), user can set the NMDS200 to uplink data in a short interval when the distance is out of configured range.
39 +(((
40 +NDS03A is designed for outdoor use. It has a weatherproof enclosure and industrial level battery to work in low to high temperatures.
41 +)))
25 25  
26 -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.
43 +(((
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.
45 +)))
27 27  
28 -NMDS200 (% style="color:blue" %)**supports different uplink**(%%) methods including (% style="color:blue" %)**TCP, MQTT, UDP, and CoAP**(%%) for different application requirements.
47 +(((
48 +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)
49 +)))
29 29  
30 -NMDS200 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)
31 -
32 -To use NMDS200, user needs to check if there is NB-IoT coverage in the field and with the Nb-IoT bands that NMDS200 supports. If local operator support it, user needs to get a** (% style="color:blue" %)NB-IoT SIM card(%%)** from the operator and install into NMDS200 to get NB-IoT network connection.
51 +(((
52 +To use NDS03A, user needs to check if there is NB-IoT coverage in the field and with the Nb-IoT bands that NDS03A supports. If local operator support it, user needs to get a (% style="color:blue" %)**NB-IoT SIM card**(%%) from the operator and install into NDS03A to get NB-IoT network connection.
33 33  )))
34 34  
35 35  
... ... @@ -38,9 +38,10 @@
38 38  
39 39  
40 40  * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
41 -* Short uplink interval for Distance Alarm
61 +* Open/Close detect
62 +* Open/Close statistics
42 42  * Monitor Battery Level
43 -* Microwave Radar for distance detection
64 +* connect two door sensors
44 44  * Datalog feature
45 45  * Uplink periodically
46 46  * Downlink to change configure
... ... @@ -53,27 +53,22 @@
53 53  
54 54  
55 55  
56 -== 1.3 Radar probe specification ==
77 +== 1.3  Storage & Operation ==
57 57  
58 58  
59 -* Measuring Method: FMCW
60 -* Frequency: 24.000 24.500 GHz
61 -* Measurement output power: 6dBm
62 -* Measure range: 0.5 20m
63 -* Accuracy: ±0.1m
64 -* Resolution: 0.01m
65 -* Horizontal Angel: 78°
66 -* Vertical Angel: 23°
80 +Temperature -40°C to +85°C
67 67  
68 68  
83 +== 1.4  Mechanical ==
69 69  
70 70  
71 -== 1.4  Storage Temperature ==
86 +[[image:image-20221117114937-4.png]]
72 72  
73 73  
74 - -40°C to +85°C
89 +[[image:image-20221117114949-5.png]]
75 75  
76 76  
92 +[[image:image-20221117115010-6.png]]
77 77  
78 78  
79 79  
... ... @@ -80,19 +80,10 @@
80 80  == 1.5 ​ Applications ==
81 81  
82 82  
99 +[[image:image-20221117114842-3.png]]
83 83  
84 -* Horizontal distance measurement
85 -* Liquid level measurement
86 -* Parking management system
87 -* Object proximity and presence detection
88 -* Intelligent trash can management system
89 -* Robot obstacle avoidance
90 -* Automatic control
91 -* Sewer
92 -* Bottom water level monitoring
93 93  
94 94  
95 -
96 96  == 1.6  Specification ==
97 97  
98 98  
... ... @@ -99,47 +99,88 @@
99 99  (% style="color:blue" %)**Common DC Characteristics:**
100 100  
101 101  * Supply Voltage: 2.1v ~~ 3.6v
102 -* Operating Temperature: 0 ~~ 70°C
109 +* Operating Temperature: -40 ~~ 85°C
103 103  
104 104  (% style="color:blue" %)**NB-IoT Spec:**
105 105  
106 -* B1 @H-FDD: 2100MHz
107 -* B3 @H-FDD: 1800MHz
108 -* B8 @H-FDD: 900MHz
109 -* B5 @H-FDD: 850MHz
110 -* B20 @H-FDD: 800MHz
111 -* B28 @H-FDD: 700MHz
113 +* - B1 @H-FDD: 2100MHz
114 +* - B3 @H-FDD: 1800MHz
115 +* - B8 @H-FDD: 900MHz
116 +* - B5 @H-FDD: 850MHz
117 +* - B20 @H-FDD: 800MHz
118 +* - B28 @H-FDD: 700MHz
112 112  
113 113  
114 114  
115 -== 1.7  Installation ==
122 +== 1.7  Pin Definitions and Switch ==
116 116  
117 117  
118 -Sensor measure direction and angle is as below. When install the sensor, please make sure the sensor direct to object.
125 +[[image:image-20221021110429-4.png]]
119 119  
120 120  
121 -[[image:image-20221207170748-1.png]] [[image:image-20221207170748-2.png||height="366" width="672"]]
128 +=== 1.7.1  Pin Definition ===
122 122  
123 123  
131 +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]]
124 124  
125 -== 1.8  Pin Definitions and Switch ==
126 126  
127 127  
128 -[[image:1670404362039-351.png]]
135 +=== 1.7.2  Jumper JP2(Power ON/OFF) ===
129 129  
130 130  
131 -= 2.  Use NMDS200 to communicate with IoT Server =
138 +Power on Device when putting this jumper.
132 132  
140 +
141 +
142 +=== 1.7.3  BOOT MODE / SW1 ===
143 +
144 +
145 +1)  ISP:  upgrade mode, device won't have any signal in this mode. but ready for upgrade firmware. LED won't work. The firmware won't run.
146 +
147 +2)  Flash:  working mode, the device starts to work for NB-IoT connection and sends out console output for further debugging.
148 +
149 +
150 +
151 +=== 1.7.4  Reset Button ===
152 +
153 +
154 +Press to reboot the device.
155 +
156 +
157 +
158 +=== 1.7.5  LED ===
159 +
160 +
161 +The LED will blink when :
162 +
163 +1.  Boot the device in flash mode
164 +
165 +2.  Send an uplink packet
166 +
167 +
168 +
169 +== 1.8  Magnet Distance ==
170 +
171 +
172 +(% style="color:blue" %)**Wood Door:**(%%) 10 ~~ 30mm
173 +
174 +(% style="color:blue" %)**Iron Door:**(%%)**    **30 ~~ 45mm
175 +
176 +
177 +
178 += 2.  Use NDS03A to communicate with IoT Server =
179 +
133 133  == 2.1  How it works ==
134 134  
135 135  
136 -The NB-IoT network will forward this value to IoT server via the protocol defined by NMDS200.
183 +In this user case, the NDS03A is installed on the door edge to detect the open/close event and send the status to the NB-IoT server. The NB-IoT network will forward this value to IoT server via the protocol defined by NDS03A.
137 137  
138 -The diagram below shows the working flow in the default firmware of NMDS200:
185 +The diagram below shows the working flow in the default firmware of NDS03A:
139 139  
140 140  [[image:image-20221021110615-5.png]]
141 141  
142 142  
190 +
143 143  == 2.2 ​ Configure NDS03A ==
144 144  
145 145  === 2.2.1 Test Requirement ===
... ... @@ -155,7 +155,9 @@
155 155  
156 156  [[image:image-20221117142300-1.png]]
157 157  
206 + ​
158 158  
208 +
159 159  === 2.2.2 Insert NB-IoT SIM card ===
160 160  
161 161  
... ... @@ -166,6 +166,7 @@
166 166  [[image:image-20221021110745-6.png]] ​
167 167  
168 168  
219 +
169 169  === 2.2.3 Connect USB – TTL to NDS03A and configure it ===
170 170  
171 171  
... ... @@ -227,6 +227,7 @@
227 227  [[image:image-20221118103547-9.png||height="605" width="837"]] ​
228 228  
229 229  
281 +
230 230  === 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
231 231  
232 232  
... ... @@ -245,6 +245,7 @@
245 245  
246 246  ​
247 247  
300 +
248 248  === 2.2.6 Use MQTT protocol to uplink data ===
249 249  
250 250  
... ... @@ -274,6 +274,7 @@
274 274  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.
275 275  
276 276  
330 +
277 277  === 2.2.7 Use TCP protocol to uplink data ===
278 278  
279 279  
... ... @@ -289,6 +289,7 @@
289 289  
290 290  ​
291 291  
346 +
292 292  === 2.2.8 Change Update Interval ===
293 293  
294 294  
... ... @@ -301,6 +301,7 @@
301 301  1.  By default, the device will send an uplink message every 4 hour.
302 302  
303 303  
359 +
304 304  == 2.3  Uplink Payload ==
305 305  
306 306  
... ... @@ -310,32 +310,34 @@
310 310  
311 311  (% style="color:blue" %)**When AT+TTRCHANNEL=1:**
312 312  
313 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
314 -|=(% 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**
369 +(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:693px" %)
370 +|=(% 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**
315 315  |=(% 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)
316 316  
317 -(% border="1.5" style="background-color:#ffffcc; color:green; width:450px" %)
318 -|(% style="width:50px" %)**4**|(% style="width:90px" %)**1**|(% style="width:90px" %)**3**|(% style="width:90px" %)**3**|(% style="width:60px" %)4|(% style="width:50px" %)(((
373 +(% border="1.5" style="background-color:#ffffcc; color:green; width:490px" %)
374 +|(% style="width:50px" %)**4**|(% style="width:70px" %)**1**|(% style="width:50px" %)**3**|(% style="width:99px" %)**3**|(% style="width:67px" %)4|(% style="width:50px" %)(((
319 319  **1-32 group**
320 320  )))
321 321  |(% 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" %)...
322 322  
379 +
380 +
323 323  (% style="color:blue" %)**When AT+TTRCHANNEL=2:**
324 324  
325 325  
326 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
327 -|=(% 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**
384 +(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:520px" %)
385 +|=(% 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**
328 328  |=(% 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)
329 329  
330 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
331 -|(% 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**
388 +(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:520px" %)
389 +|(% 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**
332 332  |(% 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)
333 333  
334 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
335 -|(% style="width:100px" %)**3**|(% style="width:80px" %)**1**|(% style="width:90px" %)**3**|(% style="width:90px" %)**3**|(% style="width:70px" %)**4**|(% style="width:80px" %)(((
392 +(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:500px" %)
393 +|(% style="width:102px" %)**3**|(% style="width:93px" %)**1**|(% style="width:91px" %)**3**|(% style="width:88px" %)**3**|(% style="width:63px" %)**4**|(% style="width:87px" %)(((
336 336  **1-32 group**
337 337  )))
338 -|(% 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" %)......
396 +|(% 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" %)......
339 339  
340 340  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDS03A uplink data.
341 341  
... ... @@ -364,10 +364,12 @@
364 364  
365 365  * (% style="color:#037691" %)**door open num: **(%%)0x000016 =22
366 366  
367 -* (% style="color:#037691" %)**last open time:   **(%%)0x000017 =23
425 +* (% style="color:#037691" %)**last open time:  **(%%)0x000017 =23
368 368  
369 369  * (% style="color:#037691" %)**Timestamp:**(%%) 0x637590df =1668649183 (Unix Time)
370 370  
429 +
430 +
371 371  == 2.4  Payload Explanation and Sensor Interface ==
372 372  
373 373  === 2.4.1  Device ID ===
... ... @@ -484,6 +484,8 @@
484 484  * After NDS03A join NB-IoT network. The LED will be ON for 3 seconds.
485 485  * For each uplink probe, LED will be on for 500ms.
486 486  
547 +
548 +
487 487  == 2.7  Alarm Base on Timeout ==
488 488  
489 489  
... ... @@ -543,6 +543,7 @@
543 543  [[image:image-20221021111527-19.png]]
544 544  
545 545  
608 +
546 546  == 2.10  Count Mod ==
547 547  
548 548  
... ... @@ -551,6 +551,7 @@
551 551  [[image:image-20221118092935-1.png]]
552 552  
553 553  
617 +
554 554  == 2.11  Interrupt Pin Channel Mod ==
555 555  
556 556  
... ... @@ -559,6 +559,7 @@
559 559  [[image:image-20221118093144-2.png]]
560 560  
561 561  
626 +
562 562  == 2.12 TTRIG1/2 timeout status alarm ==
563 563  
564 564  
... ... @@ -569,6 +569,7 @@
569 569  [[image:image-20221118093512-3.png]]
570 570  
571 571  
637 +
572 572  == 2.13  Select counting mode ==
573 573  
574 574  
... ... @@ -581,6 +581,8 @@
581 581  [[image:image-20221118093658-4.png]]
582 582  
583 583  
650 +
651 +
584 584  == 2.14  Set the number of data to be uploaded and the recording time ==
585 585  
586 586  
... ... @@ -603,6 +603,7 @@
603 603  [[image:image-20221118094227-5.png]]
604 604  
605 605  
674 +
606 606  == 2.16  ​Firmware Change Log ==
607 607  
608 608  
... ... @@ -611,8 +611,10 @@
611 611  Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
612 612  
613 613  
683 +
614 614  == 2.17  ​Battery Analysis ==
615 615  
686 +
616 616  === 2.17.1  ​Battery Type ===
617 617  
618 618  
... ... @@ -631,6 +631,7 @@
631 631  [[image:image-20221021111911-26.png]] ​
632 632  
633 633  
705 +
634 634  === 2.17.2  Power consumption Analyze ===
635 635  
636 636  
... ... @@ -653,6 +653,7 @@
653 653  [[image:1666596205057-567.png]] ​
654 654  
655 655  
728 +
656 656  === 2.17.3  ​Battery Note ===
657 657  
658 658  
... ... @@ -659,6 +659,7 @@
659 659  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.
660 660  
661 661  
735 +
662 662  === 2.17.4  Replace the battery ===
663 663  
664 664  
... ... @@ -665,6 +665,7 @@
665 665  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).
666 666  
667 667  
742 +
668 668  = 3. ​ Access NB-IoT Module =
669 669  
670 670  
... ... @@ -672,12 +672,13 @@
672 672  
673 673  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/]] 
674 674  
675 -
676 676  [[image:image-20221118094449-6.png]] ​
677 677  
678 678  
753 +
679 679  = 4.  Using the AT Commands =
680 680  
756 +
681 681  == 4.1  Access AT Commands ==
682 682  
683 683  
... ... @@ -769,8 +769,10 @@
769 769  AT+PWORD  : Serial Access Password
770 770  
771 771  
848 +
772 772  = ​5.  FAQ =
773 773  
851 +
774 774  == 5.1 ​ How to Upgrade Firmware ==
775 775  
776 776  
... ... @@ -781,8 +781,10 @@
781 781  (% 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.**
782 782  
783 783  
862 +
784 784  = 6.  Trouble Shooting =
785 785  
865 +
786 786  == 6.1  ​Connection problem when uploading firmware ==
787 787  
788 788  
... ... @@ -789,6 +789,7 @@
789 789  (% 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]]
790 790  
791 791  
872 +
792 792  == 6.2  AT Command input doesn't work ==
793 793  
794 794  
... ... @@ -795,6 +795,7 @@
795 795  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.
796 796  
797 797  
879 +
798 798  = 7. ​ Order Info =
799 799  
800 800  
... ... @@ -801,6 +801,7 @@
801 801  Part Number**:** NDS03A
802 802  
803 803  
886 +
804 804  = 8.  Packing Info =
805 805  
806 806  
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