Version 67.4 by Xiaoling on 2022/11/18 10:16
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1 (% style="text-align:center" %)
2 [[image:image-20221117105556-1.png]]
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10 **Table of Contents：**
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12 {{toc/}}
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16
17
18 = 1.  Introduction =
19
20 == 1.1 ​ What is NDS03A NB-IoT Open/Close Door Sensor ==
21
22
23 (((
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 )))
26
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 )))
30
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 )))
34
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 )))
38
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 )))
42
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 )))
46
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 )))
50
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.
53 )))
54
55
56
57 == ​1.2  Features ==
58
59
60 * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
61 * Open/Close detect
62 * Open/Close statistics
63 * Monitor Battery Level
64 * connect two door sensors
65 * Datalog feature
66 * Uplink periodically
67 * Downlink to change configure
68 * Wall Mountable
69 * Outdoor Use
70 * Ultra-Low Power consumption
71 * AT Commands to change parameters
72 * Micro SIM card slot for NB-IoT SIM
73 * 8500mAh Battery for long-term use
74
75 == 1.3  Storage & Operation ==
76
77
78 Temperature -40°C to +85°C
79
80
81 == 1.4  Mechanical ==
82
83
84 [[image:image-20221117114937-4.png]]
85
86
87 [[image:image-20221117114949-5.png]]
88
89
90 [[image:image-20221117115010-6.png]]
91
92
93
94 == 1.5 ​ Applications ==
95
96
97 [[image:image-20221117114842-3.png]]
98
99
100
101 == 1.6  Specification ==
102
103
104 (% style="color:blue" %)**Common DC Characteristics:**
105
106 * Supply Voltage: 2.1v ~~ 3.6v
107 * Operating Temperature: -40 ~~ 85°C
108
109 (% style="color:blue" %)**NB-IoT Spec:**
110
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
117
118 == 1.7  Pin Definitions and Switch ==
119
120
121 [[image:image-20221021110429-4.png]]
122
123
124 === 1.7.1  Pin Definition ===
125
126
127 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]]
128
129
130
131 === 1.7.2  Jumper JP2(Power ON/OFF) ===
132
133
134 Power on Device when putting this jumper.
135
136
137
138 === 1.7.3  BOOT MODE / SW1 ===
139
140
141 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.
142
143 2)  Flash:  working mode, the device starts to work for NB-IoT connection and sends out console output for further debugging.
144
145
146
147 === 1.7.4  Reset Button ===
148
149
150 Press to reboot the device.
151
152
153
154 === 1.7.5  LED ===
155
156
157 The LED will blink when :
158
159 1.  Boot the device in flash mode
160
161 2.  Send an uplink packet
162
163
164
165 == 1.8  Magnet Distance ==
166
167
168 (% style="color:blue" %)**Wood Door:**(%%) 10 ~~ 30mm
169
170 (% style="color:blue" %)**Iron Door:**(%%)**    **30 ~~ 45mm
171
172
173
174 = 2.  Use NDS03A to communicate with IoT Server =
175
176 == 2.1  How it works ==
177
178
179 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.
180
181 The diagram below shows the working flow in the default firmware of NDS03A:
182
183 [[image:image-20221021110615-5.png]]
184
185
186
187 == 2.2 ​ Configure NDS03A ==
188
189 === 2.2.1 Test Requirement ===
190
191
192 To use NDS03A in your city, make sure to meet below requirements:
193
194 * Your local operator has already distributed an NB-IoT Network.
195 * The local NB-IoT network used the band that NDS03A supports.
196 * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
197
198 Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NDS03A will use** (% style="color:red" %)CoAP(120.24.4.116:5683)(%%)** or raw (% style="color:red" %)**UDP(120.24.4.116:5601) **(%%)or (% style="color:red" %)**MQTT(120.24.4.116:1883) **(%%)or (% style="color:red" %)**TCP(120.24.4.116:5600)protocol**(%%) to send data to the test server.
199
200 [[image:image-20221117142300-1.png]]
201
202 ​
203
204
205 === 2.2.2 Insert NB-IoT SIM card ===
206
207
208 Insert the NB-IoT Card get from your provider.
209
210 User needs to take out the NB-IoT module and insert the SIM card like below:
211
212 [[image:image-20221021110745-6.png]] ​
213
214
215
216 === 2.2.3 Connect USB – TTL to NDS03A and configure it ===
217
218
219 User need to configure NDS03A via serial port to set the (% style="color:red" %)**Server Address** / **Uplink Topic**(%%) to define where and how-to uplink packets. NDS03A support AT Commands, user can use a USB to TTL adapter to connect to NDS03A and use AT Commands to configure it, as below.
220
221 (% style="color:blue" %)**Connection:**
222
223 (% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
224
225 (% style="background-color:yellow" %)** USB TTL TXD <~-~-~-~-> UART_RXD**
226
227 (% style="background-color:yellow" %)** USB TTL RXD <~-~-~-~-> UART_TXD**
228
229
230 In the PC, use below serial tool settings:
231
232 * Baud:  (% style="color:red" %)**9600**
233
234 * Data bits:** (% style="color:red" %)8(%%)**
235
236 * Stop bits: (% style="color:red" %)**1**
237
238 * Parity:  (% style="color:red" %)**None**
239
240 * Flow Control: (% style="color:red" %)**None**
241
242 Make sure the switch is in FLASH position, then power on NDS03A by connecting the (% style="color:orange" %)**Yellow Jumper**(%%).
243
244 ​[[image:image-20221021110817-7.png]]
245
246 NDS03A will output system info once powered on as below, we can enter the **password: 12345678** to access AT Command input.
247
248
249 (% style="color:red" %)**Note: the valid AT Commands can be found at:  **(%%)[[**https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0**>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
250
251
252
253 === 2.2.4 Use CoAP protocol to uplink data ===
254
255
256 (% style="color:red" %)**Note: if you don't have a CoAP server, you can refer this link to set up a CoAP server: **(%%)[[**http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
257
258
259 (% style="color:blue" %)**Use below commands in NDS03A:**
260
261 * (% style="color:#037691" %)**AT+PRO=1**                (%%) ~/~/ Set to use CoAP protocol to uplink
262
263 * (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%) ~/~/ Set CoAP server address and port
264
265 * (% style="color:#037691" %)**AT+URI=0,0,11,2,"mqtt" ** (%%) ~/~/  Set CoAP resource path
266
267 For parameter description, please refer to AT command set
268
269 [[image:image-20221021110948-8.png]]
270
271
272 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.
273
274 [[image:image-20221021110956-9.png]] ​
275
276
277
278 === 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
279
280
281 (% style="color:blue" %)**AT Commands:**
282
283 * (% style="color:#037691" %)**AT+PRO=2   ** (%%) ~/~/  Set to use UDP protocol to uplink
284
285 * (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/  Set UDP server address and port
286
287 * (% style="color:#037691" %)**AT+CFM=1       ** (%%) ~/~/  If the server does not respond, this command is unnecessary
288
289 ​ [[image:image-20221021111025-10.png]]
290
291
292 [[image:image-20221021111033-11.png||height="241" width="576"]]
293
294 ​
295
296
297 === 2.2.6 Use MQTT protocol to uplink data ===
298
299
300 (% style="color:blue" %)**AT Commands:**
301
302 * (% style="color:#037691" %)**AT+PRO=3   ** (%%) ~/~/  Set to use MQTT protocol to uplink
303
304 * (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/  Set MQTT server address and port
305
306 * (% style="color:#037691" %)**AT+CLIENT=CLIENT       ** (%%) ~/~/  Set up the CLIENT of MQTT
307
308 * (% style="color:#037691" %)**AT+UNAME=UNAME                     **(%%)** **~/~/  Set the username of MQTT
309
310 * (% style="color:#037691" %)**AT+PWD=PWD                         **(%%)** **~/~/  Set the password of MQTT
311
312 * (% style="color:#037691" %)**AT+PUBTOPIC=NSE01_PUB              **(%%)** **~/~/  Set the sending topic of MQTT
313
314 * (% style="color:#037691" %)**AT+SUBTOPIC=NSE01_SUB          ** (%%) ~/~/  Set the subscription topic of MQTT
315
316 ​ [[image:image-20221021111058-12.png]]
317
318
319 [[image:image-20221021111201-16.png||height="472" width="653"]]
320
321 ​
322
323 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.
324
325
326
327 === 2.2.7 Use TCP protocol to uplink data ===
328
329
330 (% style="color:blue" %)**AT Commands:**
331
332 * (% style="color:#037691" %)**AT+PRO=4   ** (%%) ~/~/  Set to use TCP protocol to uplink
333
334 * (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5600   ** (%%) ~/~/  Set TCP server address and port
335
336 ​ [[image:image-20221021111125-14.png]]
337
338 [[image:image-20221021111131-15.png]]
339
340 ​
341
342
343 === 2.2.8 Change Update Interval ===
344
345
346 User can use below command to change the (% style="color:blue" %)**uplink interval**.
347
348 * (% style="color:#037691" %)**AT+TDC=14400      ** (%%) ~/~/ Set Update Interval to 14400s (4 hours)
349
350 (% style="color:red" %)**NOTE:**
351
352 1.  By default, the device will send an uplink message every 4 hour.
353
354
355
356 == 2.3  Uplink Payload ==
357
358
359 The uplink payload includes 26 bytes in total by default.
360
361 Each time the device uploads a data package. The user can use the AT+NOUD command to upload the recorded data.Up to 32 sets of recorded data can be uploaded.
362
363 (% style="color:blue" %)**When AT+TTRCHANNEL=1:**
364
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**
367 |=(% 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="H2.4.6A0Alarm"]]|(% style="width:94px" %)door open num(pb14) |(% style="width:93px" %)last open time(pb14)
368
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" %)(((
371 **1-32 group**
372 )))
373 |(% style="width:98px" %)[[Time stamp>>||anchor="H2.4.10A0Timestamp"]]|(% 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" %)...
374
375 (% style="color:blue" %)**When AT+TTRCHANNEL=2:**
376
377
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**
380 |=(% 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="H2.4.6A0Alarm"]](pb14)|(% style="width:86px" %)door open num(pb14) |(% style="width:82px" %)last open time(pb14)
381
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**
384 |(% style="width:59px" %)Door Status(pb15)|(% style="width:67px" %)[[Alarm Status>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPN01-%20NB-IoT%20Outdoor%20OpenClose%20Dry%20Contact%20Sensor%C2%A0User%20Manual/#H2.4.7A0ContactStatus]](pb15)|(% style="width:88px" %)door open num(pb15)|(% style="width:81px" %)last open time(pb15)|(% style="width:50px" %)Time stamp|(% style="width:66px" %)Door Status(pb14)|(% style="width:92px" %)door open num(pb14)
385
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" %)(((
388 **1-32 group**
389 )))
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|(% style="width:87px" %)......
391
392 If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDS03A uplink data.
393
394 [[image:image-20221117145932-2.png]]
395
396
397 The payload is ASCII string, representative same HEX:
398
399 **0x (% style="color:red" %)__f867787050213317__  (% style="color:blue" %)__0064__ (% style="color:green" %) __0ccf__(% style="color:#00b0f0" %) __19__(% style="color:#7030a0" %) __01__(% style="color:#0020b0" %) __00__ (% style="color:#420042" %)__00__(% style="color:#660066" %) (% style="color:#aaaa40" %)__000016__(% style="color:#663300" %) __000017__ (% style="color:#d60093" %)__637590df__(%%)**
400
401 **where:**
402
403 * (% style="color:#037691" %)**Device ID:**(%%) 0x f867787050213317 = f867787050213317
404
405 * (% style="color:#037691" %)**Version:**(%%) 0x0064=100=1.0.0
406
407 * (% style="color:#037691" %)**BAT :**(%%)  0x0ccf = 3279 mV = 3.279V
408
409 * (% style="color:#037691" %)**Singal: **(%%)0x19 = 25
410
411 * (% style="color:#037691" %)**Mod:**(%%) 0x01 = 1
412
413 * (% style="color:#037691" %)**Door Status:**(%%) 0x00=0
414
415 * (% style="color:#037691" %)**Alarm Status: **(%%)0x00 =0
416
417 * (% style="color:#037691" %)**door open num: **(%%)0x000016 =22
418
419 * (% style="color:#037691" %)**last open time: **(%%)0x000017 =23
420
421 * (% style="color:#037691" %)**Timestamp:**(%%) 0x637590df =1668649183 (Unix Time)
422
423 == 2.4  Payload Explanation and Sensor Interface ==
424
425
426 === 2.4.1  Device ID ===
427
428
429 By default, the Device ID is equal to the last 15 bits of IMEI.
430
431 User can use (% style="color:blue" %)**AT+DEUI** (%%)to set Device ID
432
433 **Example:**
434
435 AT+DEUI=868411056754138
436
437 The Device ID is stored in a non-erase area, Upgrade the firmware or run AT+FDR won't erase the Device ID.
438
439
440 === 2.4.2  Version Info ===
441
442
443 Specify the software version: 0x64=100, which means firmware version 1.00.
444
445 For example 0x00 64 : This device is NDS03A 1 with firmware version 1.0.0.
446
447
448 === 2.4.3  Battery Info ===
449
450
451 Check the battery voltage for NDS03A.
452
453 Ex1: 0x0B45 = 2885mV
454
455 Ex2: 0x0B49 = 2889mV
456
457
458 === 2.4.4  Signal Strength ===
459
460
461 NB-IoT Network signal Strength.
462
463 **Ex1: 0x1d = 29**
464
465 **0**  -113dBm or less
466
467 **1**  -111dBm
468
469 **2...30** -109dBm... -53dBm
470
471 **31**   -51dBm or greater
472
473 **99**    Not known or not detectable
474
475
476 === 2.4.5  Disalarm: (default: 0) ===
477
478
479 (% style="color:blue" %)**If Disalarm = 1**(%%), NDS03A will only send uplink at every TDC periodically. This is normally use for pulse meter application, in this application, there are many open/close event, and platform only care about the total number of pulse.
480
481 (% style="color:blue" %)**If Disalarm = 0**(%%), NDS03A will send uplink at every TDC periodically and send data on each open/close event. This is useful for the application user need to monitor the open/close event in real-time.
482
483 (% style="color:red" %)**Note:**(%%) When Disalarm=0, a high frequently open/close event will cause lots of uplink and drain battery very fast.
484
485
486 === 2.4.6  Keep Status & Keep Time ===
487
488
489 Shows the configure value of Alarm Base on Timeout Feature
490
491
492 === 2.4.7  Timestamp ===
493
494
495 Timestamp : 0x6315537b =1662342011
496
497
498
499 === 2.4.8  Switch Dual Channel Mode ===
500
501
502 NDS03A can connect two door sensors. Another door sensor can be connected to PB15 pin. Both channels support alarm function.
503
504
505 == 2.5  Downlink Payload ==
506
507
508 By default, NDS03A prints the downlink payload to console port.
509
510 [[image:image-20221021111414-18.png]] ​
511
512
513 **Examples:**
514
515 * (% style="color:#037691" %)**Set TDC**
516
517 If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
518
519 Payload:    01 00 00 1E    TDC=30S
520
521 Payload:    01 00 00 3C    TDC=60S
522
523 * (% style="color:#037691" %)**Reset**
524
525 If payload = 0x04FF, it will reset the NDS03A
526
527 * (% style="color:#037691" %)**INTMOD**
528
529 Downlink Payload: 06000003, Set AT+INTMOD=3
530
531
532
533 == 2.6  ​LED Indicator ==
534
535
536 The NDS03A has an internal LED which is to show the status of different states.
537
538 * When the device starts normally, the LED will light up for 1 second.
539 * After NDS03A join NB-IoT network. The LED will be ON for 3 seconds.
540 * For each uplink probe, LED will be on for 500ms.
541
542 == 2.7  Alarm Base on Timeout ==
543
544
545 NDS03A can monitor the timeout for a status change, this feature can be used to monitor some events such as door opening too long etc. Related Parameters are:
546
547
548 (% style="color:blue" %)**1. Keep Status: Status to be monitor**
549
550 Keep Status = 1: Monitor Close to Open event
551
552 Keep Status = 0: Monitor Open to Close event
553
554
555 (% style="color:blue" %)**2. Keep Time: Timeout to send an Alarm**
556
557 Range 0 ~~ 65535(0xFFFF) seconds.
558
559 If keep time = 0, Disable Alarm Base on Timeout feature.
560
561 If keep time > 0, device will monitor the keep status event and send an alarm when status doesn't change after timeout.
562
563
564 (% style="color:blue" %)**AT Command to configure:**
565
566 (% style="color:blue" %)**PB14 PIN:**
567
568 (% style="color:#037691" %)**AT+TTRIG=1,30** (%%) **~-~->**  When the **Keep Status** change from connected to disconnect, and device remains in disconnect status for more than 30 seconds. NDS03A will send an uplink packet, the [[Alarm bit>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPL01%20LoRaWAN%20Outdoor%20PulseContact%20%20Sensor%20Manual/#H2.3.3Real-TimeOpen2FCloseStatus2CUplinkFPORT3D2]] (the second bit of 1^^st^^ byte of payload) on this uplink packet is set to 1.
569
570 (% style="color:#037691" %)**AT+TTRIG=0,0 ** (%%) **~-~->** Default Value, disable timeout Alarm.
571
572
573 (% style="color:blue" %)**PB15 PIN:**
574
575 (% style="color:#037691" %)**AT+TTRIG2=1,30**
576
577 (% style="color:#037691" %)**AT+TTRIG2=0,0 **
578
579
580 == 2.8  Set debug mode ==
581
582
583 Feature: Enable or Disable debug mode
584
585 (% style="color:blue" %)**AT Command: AT+DEBUG**
586
587 [[image:image-20221021111629-21.png]]
588
589
590
591 == 2.9  Clear Flash Record ==
592
593
594 Feature: Clear flash storage for data log feature.
595
596 (% style="color:blue" %)**AT Command: AT+CLRDTA**
597
598 [[image:image-20221021111527-19.png]]
599
600
601
602 == 2.10  Count Mod ==
603
604
605 (% style="color:blue" %)**AT Command: AT+COUNTMOD**
606
607 [[image:image-20221118092935-1.png]]
608
609
610
611 == 2.11  Interrupt Pin Channel Mod ==
612
613
614 (% style="color:blue" %)**AT Command: AT+TTRCHANNEL**
615
616 [[image:image-20221118093144-2.png]]
617
618
619
620 == 2.12 TTRIG1/2 timeout status alarm ==
621
622
623 It needs to be used with AT+TTRIG1 or AT+TTRIG2. When TTRIG1 or TTRIG2 times out and causes an alarm, and the status does not change subsequently, an alarm packet will be sent at the alarm interval.
624
625 (% style="color:blue" %)**AT Command: AT+TTRALARM**
626
627 [[image:image-20221118093512-3.png]]
628
629
630
631 == 2.13  Select counting mode ==
632
633
634 (% style="color:blue" %)**AT Command: AT+TTRMODx=a,b**
635
636 When (% style="color:red" %)**a=0**(%%), the door is opened to count, and when (% style="color:red" %)**a=1**(%%),the closed door is counted.
637
638 When (% style="color:red" %)**b=0**(%%), it is the last door open duration, and when (% style="color:red" %)**b=1**(%%),the last door close duration.
639
640 [[image:image-20221118093658-4.png]]
641
642
643
644
645 == 2.14  Set the number of data to be uploaded and the recording time ==
646
647
648 (% style="color:blue" %)**AT Command:**
649
650 (% 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)
651
652 (% style="color:#037691" %)**AT+NOUD=8**(%%)** ** ~/~/  The device uploads 0 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
653
654
655 == 2.15  Read or Clear cached data ==
656
657
658 (% style="color:blue" %)**AT Command:**
659
660 (% style="color:#037691" %)**AT+CDP**  (%%) ~/~/ Read cached data
661
662 (% style="color:#037691" %)**AT+CDP=0**  (%%) ~/~/ Clear cached data ​
663
664 [[image:image-20221118094227-5.png]]
665
666
667
668 == 2.16  ​Firmware Change Log ==
669
670
671 Download URL & Firmware Change log:  [[https:~~/~~/www.dropbox.com/sh/8p5nuvo6gh7je4n/AAAMP7MMusgbXMz9Ik7Ls03Ga?dl=0>>https://www.dropbox.com/sh/8p5nuvo6gh7je4n/AAAMP7MMusgbXMz9Ik7Ls03Ga?dl=0]]
672
673 Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
674
675
676
677 == 2.17  ​Battery Analysis ==
678
679
680 === 2.17.1  ​Battery Type ===
681
682
683 The NDS03A battery is a combination of an 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
684
685 The battery is designed to last for several years depends on the actual use environment and update interval. 
686
687 The battery-related documents as below:
688
689 * [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
690
691 * [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
692
693 * [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
694
695 [[image:image-20221021111911-26.png]] ​
696
697
698
699 === 2.17.2  Power consumption Analyze ===
700
701
702 Dragino battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
703
704 Instruction to use as below:
705
706 (% style="color:blue" %)**Step 1:  **(%%)Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
707
708 (% style="color:blue" %)**Step 2: **(%%) Open it and choose
709
710 * Product Model
711
712 * Uplink Interval
713
714 * Working Mode
715
716 And the Life expectation in difference case will be shown on the right.
717
718 [[image:1666596205057-567.png]] ​
719
720
721
722 === 2.17.3  ​Battery Note ===
723
724
725 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.
726
727
728
729 === 2.17.4  Replace the battery ===
730
731
732 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).
733
734
735
736 = 3. ​ Access NB-IoT Module =
737
738
739 Users can directly access the AT command set of the NB-IoT module.
740
741 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/]] 
742
743 [[image:image-20221118094449-6.png]] ​
744
745
746
747 = 4.  Using the AT Commands =
748
749
750 == 4.1  Access AT Commands ==
751
752
753 See this link for detail:  [[https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
754
755 AT+<CMD>?  : Help on <CMD>
756
757 AT+<CMD>         : Run <CMD>
758
759 AT+<CMD>=<value> : Set the value
760
761 AT+<CMD>=?  : Get the value
762
763
764 (% style="color:blue" %)**General Commands**      
765
766 AT  : Attention       
767
768 AT?  : Short Help     
769
770 ATZ  : MCU Reset    
771
772 AT+TDC  : Application Data Transmission Interval
773
774 AT+CFG  : Print all configurations
775
776 AT+CFGMOD           : Working mode selection
777
778 AT+INTMOD            : Set the trigger interrupt mode
779
780 AT+5VT  : Set extend the time of 5V power  
781
782 AT+PRO  : Choose agreement
783
784 AT+RXDL  : Extend the sending and receiving time
785
786 AT+SERVADDR  : Server Address
787
788 AT+TR      :  Get or Set record time
789
790 AT+NOUD      : Get or Set the number of data to be uploaded
791
792 AT+CDP     :  Read or Clear cached data
793
794 AT+ DEBUG   : Enable or Disable debug mode
795
796 AT+ TTRIG1   : Get or Set PB14 PIN Alarm Base on Timeout
797
798 AT+ TTRIG2   : Get or Set PB15 PIN Alarm Base on Timeout
799
800 AT+COUNTMOD  :  Get or Set the count mode
801
802 AT+TTRCHANNEL  : Get or Set the number of interrupt channels
803
804 AT+TTRALARM : Get or Set TTRIG1 of Alarm interval (unit: minute)
805
806 AT+DISALARM  : Enable/Disable Alarm for door open/close or water leak event
807
808 AT+ CLRC   :  Clear current door open count
809
810
811 (% style="color:blue" %)**COAP Management**      
812
813 AT+URI            : Resource parameters
814
815
816 (% style="color:blue" %)**UDP Management**
817
818 AT+CFM          : Upload confirmation mode (only valid for UDP)
819
820
821 (% style="color:blue" %)**MQTT Management**
822
823 AT+CLIENT               : Get or Set MQTT client
824
825 AT+UNAME  : Get or Set MQTT Username
826
827 AT+PWD                  : Get or Set MQTT password
828
829 AT+PUBTOPIC  : Get or Set MQTT publish topic
830
831 AT+SUBTOPIC  : Get or Set MQTT subscription topic
832
833
834 (% style="color:blue" %)**Information**          
835
836 AT+FDR  : Factory Data Reset
837
838 AT+PWORD  : Serial Access Password
839
840
841
842 = ​5.  FAQ =
843
844
845 == 5.1 ​ How to Upgrade Firmware ==
846
847
848 User can upgrade the firmware for 1) bug fix, 2) new feature release.
849
850 Please see this link for how to upgrade:  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList]]
851
852 (% 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.**
853
854
855
856 = 6.  Trouble Shooting =
857
858
859 == 6.1  ​Connection problem when uploading firmware ==
860
861
862 (% 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]]
863
864
865
866 == 6.2  AT Command input doesn't work ==
867
868
869 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.
870
871
872
873 = 7. ​ Order Info =
874
875
876 Part Number**:** NDS03A
877
878
879
880 = 8.  Packing Info =
881
882
883 (% style="color:blue" %)**Package Includes**:
884
885 * NDS03A Open/Close Door Sensor x 1
886
887 = 9.  Support =
888
889
890 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
891
892 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]]
893
894 ​

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