Version 107.1 by Edwin Chen on 2022/10/09 00:11
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1 (% style="text-align:center" %)
2 [[image:image-20220709085040-1.png||height="542" width="524"]]
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6
7
8 **Table of Contents:**
9
10 {{toc/}}
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15
16
17 = 1.  Introduction =
18
19
20 == 1.1 ​ What is NDDS75 Distance Detection Sensor ==
21
22 (((
23
24
25 (((
26 (((
27 The Dragino NDDS75 is a (% style="color:blue" %)**NB-IoT Distance Detection Sensor**(%%) for Internet of Things solution. It is designed to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses ultrasonic sensing technology for distance measurement, and temperature compensation is performed internally to improve the reliability of data.
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29
30 (((
31 The NDDS75 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc. It detects the distance between the measured object and the sensor, and uploads the value via wireless to IoT Server via NB-IoT Network.
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33
34 (((
35 NarrowBand-Internet of Things (NB-IoT) is a 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.
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37
38 (((
39 NDDS75 supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP** (%%)for different application requirement.
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41
42 (((
43 NDDS75 is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), It is designed for long term use up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method)
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45
46 (((
47 To use NDDS75, user needs to check if there is NB-IoT coverage in local area and with the bands NDDS75 supports. If the local operate support it, user needs to get a NB-IoT SIM card from local operator and install NDDS75 to get NB-IoT network connection.
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49 )))
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51
52 )))
53
54 [[image:1657327959271-447.png]]
55
56
57
58 == 1.2 ​ Features ==
59
60
61 * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
62 * Ultra low power consumption
63 * Distance Detection by Ultrasonic technology
64 * Flat object range 280mm - 7500mm
65 * Accuracy: ±(1cm+S*0.3%) (S: Distance)
66 * Cable Length: 25cm
67 * AT Commands to change parameters
68 * Uplink on periodically
69 * Downlink to change configure
70 * IP66 Waterproof Enclosure
71 * Micro SIM card slot for NB-IoT SIM
72 * 8500mAh Battery for long term use
73
74 == 1.3  Specification ==
75
76
77 (% style="color:#037691" %)**Common DC Characteristics:**
78
79 * Supply Voltage: 2.1v ~~ 3.6v
80 * Operating Temperature: -40 ~~ 85°C
81
82 (% style="color:#037691" %)**NB-IoT Spec:**
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
90
91 (% style="color:#037691" %)**Battery:**
92
93 * Li/SOCI2 un-chargeable battery
94 * Capacity: 8500mAh
95 * Self Discharge: <1% / Year @ 25°C
96 * Max continuously current: 130mA
97 * Max boost current: 2A, 1 second
98
99 (% style="color:#037691" %)**Power Consumption**
100
101 * STOP Mode: 10uA @ 3.3v
102 * Max transmit power: 350mA@3.3v
103
104 == ​1.4  Applications ==
105
106
107 * Smart Buildings & Home Automation
108 * Logistics and Supply Chain Management
109 * Smart Metering
110 * Smart Agriculture
111 * Smart Cities
112 * Smart Factory
113
114 (% class="wikigeneratedid" id="H200B1.5FirmwareChangelog" %)
115 ​
116
117
118
119
120 == 1.5  Pin Definitions ==
121
122
123 [[image:1657328609906-564.png]]
124
125
126
127 = 2.  Use NDDS75 to communicate with IoT Server =
128
129
130 == 2.1  How it works ==
131
132
133 (((
134 The NDDS75 is equipped with a NB-IoT module, the pre-loaded firmware in NDDS75 will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by NDDS75.
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136
137
138 (((
139 The diagram below shows the working flow in default firmware of NDDS75:
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141
142 (((
143
144 )))
145
146 [[image:1657328659945-416.png]]
147
148 (((
149
150 )))
151
152
153 == 2.2 ​ Configure the NDDS75 ==
154
155
156 === 2.2.1 Test Requirement ===
157
158
159 (((
160 To use NDDS75 in your city, make sure meet below requirements:
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162
163 * Your local operator has already distributed a NB-IoT Network there.
164 * The local NB-IoT network used the band that NDDS75 supports.
165 * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
166
167 (((
168 Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NDDS75 will use CoAP((% style="color:red" %)120.24.4.116:5683)(%%) or raw UDP((% style="color:red" %)120.24.4.116:5601)(%%) or MQTT((% style="color:red" %)120.24.4.116:1883)(%%)or TCP((% style="color:red" %)120.24.4.116:5600)(%%)protocol to send data to the test server.
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170
171
172 [[image:1657328756309-230.png]]
173
174
175
176 === 2.2.2 Insert SIM card ===
177
178
179 (((
180 Insert the NB-IoT Card get from your provider.
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182
183 (((
184 User need to take out the NB-IoT module and insert the SIM card like below:
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186
187
188 [[image:1657328884227-504.png]]
189
190
191
192 === 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
193
194
195 (((
196 (((
197 User need to configure NDDS75 via serial port to set the (% style="color:blue" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. NDDS75 support AT Commands, user can use a USB to TTL adapter to connect to NDDS75 and use AT Commands to configure it, as below.
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199 )))
200
201 [[image:image-20220709092052-2.png]]
202
203
204 (% style="color:blue" %)**Connection:**
205
206 (% style="background-color:yellow" %)**USB TTL GND <~-~-~-~-> GND**
207
208 **~ (% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD(%%)**
209
210 **~ (% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD(%%)**
211
212
213 In the PC, use below serial tool settings:
214
215 * Baud:  (% style="color:green" %)**9600**
216 * Data bits:** (% style="color:green" %)8(%%)**
217 * Stop bits: (% style="color:green" %)**1**
218 * Parity:  (% style="color:green" %)**None**
219 * Flow Control: (% style="color:green" %)**None**
220
221 (((
222 Make sure the switch is in FLASH position, then power on device by connecting the jumper on NDDS75. NDDS75 will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
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224
225 [[image:1657329814315-101.png]]
226
227
228 (((
229 (% style="color:red" %)**Note: the valid AT Commands can be found at: **(%%)**[[https:~~/~~/www.dropbox.com/sh/aaq2xcl0bzfu0yd/AAAEAHRa7Io_465ds4Y7-F3aa?dl=0>>https://www.dropbox.com/sh/aaq2xcl0bzfu0yd/AAAEAHRa7Io_465ds4Y7-F3aa?dl=0]]**
230 )))
231
232
233
234 === 2.2.4 Use CoAP protocol to uplink data ===
235
236
237 (% style="color:red" %)**Note: if you don't have CoAP server, you can refer this link to set up one: **(%%)**[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/>>http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]**
238
239
240 (((
241 **Use below commands:**
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243
244 * (((
245 (% style="color:blue" %)**AT+PRO=1**  (%%) ~/~/ Set to use CoAP protocol to uplink
246 )))
247 * (((
248 (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/  to set CoAP server address and port
249 )))
250 * (((
251 (% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/  Set COAP resource path
252
253
254
255 )))
256
257 (((
258 For parameter description, please refer to AT command set
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260
261 )))
262
263 [[image:1657330452568-615.png]]
264
265
266
267 (((
268 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.
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270
271 )))
272
273 [[image:1657330472797-498.png]]
274
275
276
277 === 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
278
279
280 * (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/  Set to use UDP protocol to uplink
281 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/  to set UDP server address and port
282 * (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/  If the server does not respond, this command is unnecessary
283
284 [[image:1657330501006-241.png]]
285
286
287 [[image:1657330533775-472.png]]
288
289
290
291 === 2.2.6 Use MQTT protocol to uplink data ===
292
293
294 * (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/  Set to use MQTT protocol to uplink
295 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/  Set MQTT server address and port
296 * (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/  Set up the CLIENT of MQTT
297 * (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/  Set the username of MQTT
298 * (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/  Set the password of MQTT
299 * (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/  Set the sending topic of MQTT
300 * (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/  Set the subscription topic of MQTT
301
302 [[image:1657249978444-674.png]]
303
304
305 [[image:1657330723006-866.png]]
306
307
308 (((
309 MQTT protocol has a much higher power consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.
310 )))
311
312
313
314 === 2.2.7 Use TCP protocol to uplink data ===
315
316
317 * (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/  Set to use TCP protocol to uplink
318 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/  to set TCP server address and port
319
320 [[image:image-20220709093918-1.png]]
321
322
323 [[image:image-20220709093918-2.png]]
324
325
326
327 === 2.2.8 Change Update Interval ===
328
329
330 User can use below command to change the (% style="color:green" %)**uplink interval**.
331
332 * (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/  Set Update Interval to 600s
333
334 (((
335
336
337
338 (% style="color:red" %)**NOTE:**
339
340 (% style="color:red" %)**1. By default, the device will send an uplink message every 1 hour.**
341
342 (% style="color:red" %)**2. When the firmware version is v1.3.2 and later firmware:**
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344
345 (% 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).**
346
347
348
349 == 2.3  Uplink Payload ==
350
351
352 === 2.3.1  Before Firmware v1.3.2 ===
353
354
355 In this mode, uplink payload includes in total 14 bytes
356
357 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %)
358 |=(% style="width: 60px;" %)(((
359 **Size(bytes)**
360 )))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 100px;" %)**2**|=(% style="width: 60px;" %)**1**
361 |(% 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"]]
362
363 (((
364 If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS751 uplink data.
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366
367
368 [[image:1657331036973-987.png]]
369
370
371 (((
372 The payload is **ASCII** string, representative same HEX:
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374
375 (((
376 0x72403155615900640c6c19029200 where:
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378
379 * (((
380 Device ID: 0x724031556159 = 724031556159
381 )))
382 * (((
383 Version:  0x0064=100=1.0.0
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385
386 * (((
387 BAT:  0x0c6c = 3180 mV = 3.180V
388 )))
389 * (((
390 Signal: 0x19 = 25
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392 * (((
393 Distance: 0x0292= 658 mm
394 )))
395 * (((
396 Interrupt: 0x00 = 0
397
398
399
400
401
402 )))
403
404 === **2.3.2  Since firmware v1.3.2** ===
405
406
407 In this mode, uplink payload includes 69 bytes in total by default.
408
409 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.
410
411 (% border="2" style="background-color:#ffffcc; color:green; width:896px" %)
412 |(% style="width:95px" %)**Size(bytes)**|(% style="width:84px" %)**8**|(% style="width:44px" %)2|(% style="width:48px" %)2|(% style="width:123px" %)1|(% style="width:55px" %)1|(% style="width:80px" %)1|(% style="width:77px" %)2|(% style="width:94px" %)4|(% style="width:77px" %)2|(% style="width:116px" %)4
413 |(% 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.......
414
415 If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS75 uplink data.
416
417 [[image:image-20220908175246-1.png]]
418
419
420 The payload is ASCII string, representative same HEX:
421
422 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:
423
424 * (% style="color:green" %)Device ID: f867787050213317 = f867787050213317
425 * (% style="color:red" %)Version: 0x0084=132=1.3.2
426 * (% style="color:green" %)BAT: 0x0cf4 = 3316 mV = 3.316V
427 * (% style="color:blue" %)Singal: 0x1e = 30
428 * (% style="color:red" %)Mod: 0x01 = 1
429 * Interrupt: 0x00= 0
430 * Distance: 0x0039= 57 = 57
431 * Time stamp : 0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
432 * Distance,Time stamp : 00396319baf0
433 * (% style="color:red" %) 8 sets of recorded data: Distance,Time stamp : //**00396319ba3c**//,.......
434
435 == 2.4  Payload Explanation and Sensor Interface ==
436
437
438 === 2.4.1  Device ID ===
439
440
441 (((
442 By default, the Device ID equal to the last 6 bytes of IMEI.
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444
445 (((
446 User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
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448
449 )))
450
451 (((
452 (% style="color:blue" %)**Example :**
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454
455 (((
456 AT+DEUI=A84041F15612
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458
459 (((
460 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.
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462
463
464 (% style="color:red" %)**NOTE: When the firmware version is v1.3.2 and later firmware:**
465
466 (% style="color:red" %)**By default, the Device ID equal to the last 15 bits of IMEI.**
467
468 User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
469
470
471 (% style="color:blue" %)**Example :**
472
473 AT+DEUI=868411056754138
474
475
476
477 === 2.4.2  Version Info ===
478
479
480 (((
481 Specify the software version: 0x64=100, means firmware version 1.00.
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483
484 (((
485 For example: 0x00 64 : this device is NDDS75 with firmware version 1.0.0.
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487
488
489
490 === 2.4.3  Battery Info ===
491
492
493 (((
494 Ex1: 0x0B45 = 2885mV
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496
497 (((
498 Ex2: 0x0B49 = 2889mV
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500
501
502
503 === 2.4.4  Signal Strength ===
504
505
506 (((
507 NB-IoT Network signal Strength.
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509
510 (((
511 **Ex1: 0x1d = 29**
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513
514 (((
515 (% style="color:blue" %)**0**(%%)  -113dBm or less
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517
518 (((
519 (% style="color:blue" %)**1**(%%)  -111dBm
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521
522 (((
523 (% style="color:blue" %)**2...30**(%%) -109dBm... -53dBm
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525
526 (((
527 (% style="color:blue" %)**31**  (%%) -51dBm or greater
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529
530 (((
531 (% style="color:blue" %)**99**   (%%) Not known or not detectable
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533
534
535
536 === 2.4.5  Distance ===
537
538
539 Get the distance. Flat object range 280mm - 7500mm.
540
541 (((
542 For example, if the data you get from the register is **__0x0B 0x05__**, the distance between the sensor and the measured object is
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544
545 (((
546 (((
547 (% style="color:blue" %)** 0B05(H) = 2821(D) = 2821mm.**
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549 )))
550
551 (((
552
553 )))
554
555 (((
556
557 )))
558
559 === 2.4.6  Digital Interrupt ===
560
561
562 (((
563 Digital Interrupt refers to pin (% style="color:blue" %)**GPIO_EXTI**(%%), and there are different trigger methods. When there is a trigger, the NDDS75 will send a packet to the server.
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565
566 (((
567 The command is:
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569
570 (((
571 (% 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]])**.**
572 )))
573
574
575 (((
576 The lower four bits of this data field shows if this packet is generated by interrupt or not. Click here for the hardware and software set up.
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578
579
580 (((
581 Example:
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583
584 (((
585 0x(00): Normal uplink packet.
586 )))
587
588 (((
589 0x(01): Interrupt Uplink Packet.
590 )))
591
592
593
594 === 2.4.7  ​+5V Output ===
595
596
597 (((
598 NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling. 
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600
601
602 (((
603 The 5V output time can be controlled by AT Command.
604
605
606 )))
607
608 (((
609 (% style="color:blue" %)**AT+5VT=1000**
610
611
612 )))
613
614 (((
615 Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
616 )))
617
618
619
620 == 2.5  Downlink Payload ==
621
622
623 By default, NDDS75 prints the downlink payload to console port.
624
625 [[image:image-20220709100028-1.png]]
626
627
628 (((
629 (% style="color:blue" %)**Examples:**
630 )))
631
632 (((
633
634 )))
635
636 * (((
637 (% style="color:blue" %)**Set TDC**
638 )))
639
640 (((
641 If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
642 )))
643
644 (((
645 Payload:    01 00 00 1E    TDC=30S
646 )))
647
648 (((
649 Payload:    01 00 00 3C    TDC=60S
650 )))
651
652 (((
653
654 )))
655
656 * (((
657 (% style="color:blue" %)**Reset**
658 )))
659
660 (((
661 If payload = 0x04FF, it will reset the NDDS75
662 )))
663
664
665 * (% style="color:blue" %)**INTMOD**
666
667 (((
668 Downlink Payload: 06000003, Set AT+INTMOD=3
669 )))
670
671
672
673 == 2.6  Distance alarm function(Since firmware v1.3.2) ==
674
675
676 (% style="color:blue" %)** ➢ AT Command:**
677
678 (% style="color:#037691" %)** AT+ LDDSALARM=min,max**
679
680 ² When min=0, and max≠0, Alarm higher than max
681
682 ² When min≠0, and max=0, Alarm lower than min
683
684 ² When min≠0 and max≠0, Alarm higher than max or lower than min
685
686
687 (% style="color:blue" %)** Example:**
688
689 **AT+ LDDSALARM=260,2000**  ~/~/ Alarm when distance lower than 260.
690
691
692
693 == 2.7  Set the number of data to be uploaded and the recording time ==
694
695
696 (% style="color:blue" %)** ➢ AT Command:**
697
698 * (% 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)
699 * (% 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.
700
701 The diagram below explains the relationship between TR, NOUD, and TDC more clearly**:**
702
703 [[image:image-20221009000513-1.png||height="732" width="1018"]]
704
705
706
707 == 2.8  Read or Clear cached data ==
708
709
710 (% style="color:blue" %)** ➢ AT Command:**
711
712 * (% style="color:#037691" %)** AT+CDP ** (%%) ~/~/  Read cached data
713 * (% style="color:#037691" %)** AT+CDP=0**  (%%) ~/~/  Clear cached data
714
715 [[image:image-20220908175333-2.png]]
716
717
718
719 == 2.9  ​LED Indicator ==
720
721
722 The NDDS75 has an internal LED which is to show the status of different state.
723
724
725 * When power on, NDDS75 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe)
726 * Then the LED will be on for 1 second means device is boot normally.
727 * After NDDS75 join NB-IoT network. The LED will be ON for 3 seconds.
728 * For each uplink probe, LED will be on for 500ms.
729
730 (((
731
732 )))
733
734
735
736 == 2.10  ​Firmware Change Log ==
737
738
739 (((
740 Download URL & Firmware Change log:  [[https:~~/~~/www.dropbox.com/sh/3hb94r49iszmstx/AADvSJcXxahEUfxqKWVnZx-La?dl=0>>https://www.dropbox.com/sh/3hb94r49iszmstx/AADvSJcXxahEUfxqKWVnZx-La?dl=0]]
741 )))
742
743 (((
744
745 )))
746
747 (((
748 Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
749 )))
750
751
752
753 == 2.11  ​Battery Analysis ==
754
755
756 === 2.11.1  ​Battery Type ===
757
758
759 (((
760 The NDDS75 battery is a combination of an 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is none-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.
761 )))
762
763 (((
764 The battery is designed to last for several years depends on the actually use environment and update interval. 
765 )))
766
767 (((
768 The battery related documents as below:
769 )))
770
771 * [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
772 * [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
773 * [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
774
775 (((
776 [[image:image-20220709101450-2.png]]
777 )))
778
779
780
781 === 2.11.2  Power consumption Analyze ===
782
783
784 (((
785 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.
786 )))
787
788
789 (((
790 Instruction to use as below:
791 )))
792
793 (((
794 (% 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/]]
795 )))
796
797
798 (((
799 (% style="color:blue" %)**Step 2: **(%%) Open it and choose
800 )))
801
802 * (((
803 Product Model
804 )))
805 * (((
806 Uplink Interval
807 )))
808 * (((
809 Working Mode
810 )))
811
812 (((
813 And the Life expectation in difference case will be shown on the right.
814 )))
815
816 [[image:image-20220709110451-3.png]]
817
818
819
820 === 2.11.3  ​Battery Note ===
821
822
823 (((
824 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.
825 )))
826
827
828
829 === 2.11.4  Replace the battery ===
830
831
832 (((
833 The default battery pack of NDDS75 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).
834 )))
835
836
837
838 = 3. ​ Access NB-IoT Module =
839
840
841 (((
842 Users can directly access the AT command set of the NB-IoT module.
843 )))
844
845 (((
846 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/]] 
847
848
849 )))
850
851 [[image:1657333200519-600.png]]
852
853
854
855 = 4.  Using the AT Commands =
856
857
858 == 4.1  Access AT Commands ==
859
860
861 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]]
862
863
864 AT+<CMD>?  :  Help on <CMD>
865
866 AT+<CMD>         :  Run <CMD>
867
868 AT+<CMD>=<value> :  Set the value
869
870 AT+<CMD>=?  :  Get the value
871
872
873 (% style="color:#037691" %)**General Commands**(%%)      
874
875 AT  :  Attention       
876
877 AT?  :  Short Help     
878
879 ATZ  :  MCU Reset    
880
881 AT+TDC  :  Application Data Transmission Interval
882
883 AT+CFG  :  Print all configurations
884
885 AT+CFGMOD           :  Working mode selection
886
887 AT+INTMOD            :  Set the trigger interrupt mode
888
889 AT+5VT  :  Set extend the time of 5V power  
890
891 AT+PRO  :  Choose agreement
892
893 AT+WEIGRE  :  Get weight or set weight to 0
894
895 AT+WEIGAP  :  Get or Set the GapValue of weight
896
897 AT+RXDL  :  Extend the sending and receiving time
898
899 AT+CNTFAC  :  Get or set counting parameters
900
901 AT+SERVADDR  :  Server Address
902
903 AT+TR  :  Get or Set record time"
904
905 AT+APN     :  Get or set the APN
906
907 AT+FBAND  :  Get or Set whether to automatically modify the frequency band
908
909 AT+DNSCFG  : Get or Set DNS Server
910
911 AT+GETSENSORVALUE   :  Returns the current sensor measurement
912
913 AT+NOUD  :  Get or Set the number of data to be uploaded
914
915 AT+CDP     :  Read or Clear cached data
916
917 AT+LDDSALARM :  Get or Set alarm of distance
918
919
920 (% style="color:#037691" %)**COAP Management**      
921
922 AT+URI            :  Resource parameters
923
924
925 (% style="color:#037691" %)**UDP Management**
926
927 AT+CFM          :  Upload confirmation mode (only valid for UDP)
928
929
930 (% style="color:#037691" %)**MQTT Management**
931
932 AT+CLIENT  :  Get or Set MQTT client
933
934 AT+UNAME  :  Get or Set MQTT Username
935
936 AT+PWD  :  Get or Set MQTT password
937
938 AT+PUBTOPIC  :  Get or Set MQTT publish topic
939
940 AT+SUBTOPIC  :  Get or Set MQTT subscription topic
941
942
943 (% style="color:#037691" %)**Information**          
944
945 AT+FDR  :  Factory Data Reset
946
947 AT+PWORD  :  Serial Access Password
948
949
950
951 = ​5.  FAQ =
952
953
954 == 5.1 ​ How to Upgrade Firmware ==
955
956
957 (((
958 User can upgrade the firmware for 1) bug fix, 2) new feature release.
959 )))
960
961 (((
962 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>>http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList]]
963 )))
964
965 (((
966 (% style="color:red" %)**Notice, NDDS75 and LDDS75 share the same mother board. They use the same connection and method to update.**
967 )))
968
969
970
971 = 6.  Trouble Shooting =
972
973
974 == 6.1  ​Connection problem when uploading firmware ==
975
976
977 (((
978 **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]]
979 )))
980
981 (% class="wikigeneratedid" %)
982 (((
983
984 )))
985
986
987 == 6.2  AT Command input doesn't work ==
988
989
990 (((
991 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.
992
993
994 )))
995
996
997 = 7. ​ Order Info =
998
999
1000 Part Number**:** (% style="color:#4f81bd" %)**NSDDS75**
1001
1002
1003 (% class="wikigeneratedid" %)
1004 (((
1005
1006 )))
1007
1008 = 8.  Packing Info =
1009
1010 (((
1011
1012
1013 (% style="color:#037691" %)**Package Includes**:
1014
1015 * NDDS75 NB-IoT Distance Detect Sensor Node x 1
1016 * External antenna x 1
1017 )))
1018
1019 (((
1020
1021
1022
1023 (% style="color:#037691" %)**Dimension and weight**:
1024
1025 * Device Size: 13.0 x 5 x 4.5 cm
1026 * Device Weight: 150g
1027 * Package Size / pcs : 15 x 12x 5.5 cm
1028 * Weight / pcs : 220g
1029 )))
1030
1031 (((
1032
1033
1034
1035
1036 )))
1037
1038 = 9.  Support =
1039
1040
1041 * 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.
1042 * 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]]

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