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22	22
23	23
24	24	(((
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25	25	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.
26		-\\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.
27		-\\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.
28		-\\NDDS75 supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP** (%%)for different application requirement.
29		-\\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)
30		-\\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.
31	31	)))
32	32
33		-
	29	+(((
	30	+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.
34	34	)))
35	35
36		-[[image:1654503236291-817.png]]
	33	+(((
	34	+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.
	35	+)))
37	37
	37	+(((
	38	+NDDS75 supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP** (%%)for different application requirement.
	39	+)))
38	38
	41	+(((
	42	+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)
	43	+)))
	44	+
	45	+(((
	46	+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.
	47	+)))
	48	+)))
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	50	+
	51	+)))
	52	+
39	39	[[image:1657327959271-447.png]]
40	40
41	41
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58	58
59	59
60	60
	75	+
61	61	== 1.3  Specification ==
62	62
63	63
...	...	@@ -66,6 +66,8 @@
66	66	* Supply Voltage: 2.1v ~~ 3.6v
67	67	* Operating Temperature: -40 ~~ 85°C
68	68
	84	+
	85	+
69	69	(% style="color:#037691" %)**NB-IoT Spec:**
70	70
71	71	* - B1 @H-FDD: 2100MHz
...	...	@@ -75,6 +75,8 @@
75	75	* - B20 @H-FDD: 800MHz
76	76	* - B28 @H-FDD: 700MHz
77	77
	95	+
	96	+
78	78	(% style="color:#037691" %)**Battery:**
79	79
80	80	* Li/SOCI2 un-chargeable battery
...	...	@@ -83,15 +83,20 @@
83	83	* Max continuously current: 130mA
84	84	* Max boost current: 2A, 1 second
85	85
	105	+
	106	+
86	86	(% style="color:#037691" %)**Power Consumption**
87	87
88	88	* STOP Mode: 10uA @ 3.3v
89		-* Max transmit power: [[350mA@3.3v>>mailto:350mA@3.3v]]
	110	+* Max transmit power: 350mA@3.3v
90	90
91	91
92	92
	114	+
	115	+
93	93	== ​1.4  Applications ==
94	94
	118	+
95	95	* Smart Buildings & Home Automation
96	96	* Logistics and Supply Chain Management
97	97	* Smart Metering
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104	104
105	105
106	106
	131	+
107	107	== 1.5  Pin Definitions ==
108	108
109	109
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113	113
114	114	= 2.  Use NDDS75 to communicate with IoT Server =
115	115
	141	+
116	116	== 2.1  How it works ==
117	117
	144	+
118	118	(((
119	119	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.
120	120	)))
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140	140
141	141	=== 2.2.1 Test Requirement ===
142	142
	170	+
143	143	(((
144	144	To use NDDS75 in your city, make sure meet below requirements:
145	145	)))
146	146
147	147	* Your local operator has already distributed a NB-IoT Network there.
148		-* The local NB-IoT network used the band that NSE01 supports.
	176	+* The local NB-IoT network used the band that NDDS75 supports.
149	149	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
150	150
151	151	(((
152		-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
	180	+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.
153	153	)))
154	154
155	155
...	...	@@ -159,6 +159,7 @@
159	159
160	160	=== 2.2.2 Insert SIM card ===
161	161
	190	+
162	162	(((
163	163	Insert the NB-IoT Card get from your provider.
164	164	)))
...	...	@@ -174,6 +174,7 @@
174	174
175	175	=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
176	176
	206	+
177	177	(((
178	178	(((
179	179	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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182	182
183	183	[[image:image-20220709092052-2.png]]
184	184
	215	+
185	185	**Connection:**
186	186
187	187	(% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
...	...	@@ -205,8 +205,9 @@
205	205
206	206	[[image:1657329814315-101.png]]
207	207
	239	+
208	208	(((
209		-(% style="color:red" %)Note: the valid AT Commands can be found at: (%%)[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/]]
	241	+(% 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]]**
210	210	)))
211	211
212	212
...	...	@@ -213,21 +213,35 @@
213	213
214	214	=== 2.2.4 Use CoAP protocol to uplink data ===
215	215
216		-(% 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/]]
217	217
	249	+(% 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/]]**
218	218
	251	+
	252	+(((
219	219	**Use below commands:**
	254	+)))
220	220
221		-* (% style="color:blue" %)**AT+PRO=1**  (%%) ~/~/ Set to use CoAP protocol to uplink
222		-* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/ to set CoAP server address and port
223		-* (% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
	256	+* (((
	257	+(% style="color:blue" %)**AT+PRO=1**  (%%) ~/~/ Set to use CoAP protocol to uplink
	258	+)))
	259	+* (((
	260	+(% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/ to set CoAP server address and port
	261	+)))
	262	+* (((
	263	+(% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
	264	+)))
224	224
	266	+(((
225	225	For parameter description, please refer to AT command set
	268	+)))
226	226
227	227	[[image:1657330452568-615.png]]
228	228
229	229
	273	+
	274	+(((
230	230	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.
	276	+)))
231	231
232	232	[[image:1657330472797-498.png]]
233	233
...	...	@@ -236,10 +236,12 @@
236	236	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
237	237
238	238
239		-* (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink
	285	+* (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink
240	240	* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
241		-* (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/If the server does not respond, this command is unnecessary
	287	+* (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/ If the server does not respond, this command is unnecessary
242	242
	289	+
	290	+
243	243	[[image:1657330501006-241.png]]
244	244
245	245
...	...	@@ -250,14 +250,16 @@
250	250	=== 2.2.6 Use MQTT protocol to uplink data ===
251	251
252	252
253		-* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
254		-* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
255		-* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
256		-* (% style="color:blue" %)**AT+UNAME=UNAME                               **(%%)~/~/Set the username of MQTT
257		-* (% style="color:blue" %)**AT+PWD=PWD                                        **(%%)~/~/Set the password of MQTT
	301	+* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
	302	+* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
	303	+* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
	304	+* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/Set the username of MQTT
	305	+* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/Set the password of MQTT
258	258	* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/Set the sending topic of MQTT
259	259	* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/Set the subscription topic of MQTT
260	260
	309	+
	310	+
261	261	[[image:1657249978444-674.png]]
262	262
263	263
...	...	@@ -276,6 +276,8 @@
276	276	* (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/ Set to use TCP protocol to uplink
277	277	* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/ to set TCP server address and port
278	278
	329	+
	330	+
279	279	[[image:image-20220709093918-1.png]]
280	280
281	281
...	...	@@ -285,6 +285,7 @@
285	285
286	286	=== 2.2.8 Change Update Interval ===
287	287
	340	+
288	288	User can use below command to change the (% style="color:green" %)**uplink interval**.
289	289
290	290	* (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
...	...	@@ -294,7 +294,7 @@
294	294	)))
295	295
296	296	(((
297		-(% style="color:red" %)1. By default, the device will send an uplink message every 1 hour.
	350	+(% style="color:red" %)**1. By default, the device will send an uplink message every 1 hour.**
298	298	)))
299	299
300	300
...	...	@@ -301,13 +301,14 @@
301	301
302	302	== 2.3  Uplink Payload ==
303	303
	357	+
304	304	In this mode, uplink payload includes in total 14 bytes
305	305
306	306
307		-(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
308		-|=(% style="width: 80px;" %)(((
	361	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %)
	362	+|=(% style="width: 60px;" %)(((
309	309	**Size(bytes)**
310		-)))|=(% style="width: 80px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 110px;" %)**1**|=(% style="width: 110px;" %)**2**|=(% style="width: 70px;" %)**1**
	364	+)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 100px;" %)**2**|=(% style="width: 60px;" %)**1**
311	311	|(% 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"]]
312	312
313	313	(((
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317	317
318	318	[[image:1657331036973-987.png]]
319	319
	374	+
320	320	(((
321	321	The payload is ASCII string, representative same HEX:
322	322	)))
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354	354
355	355	=== 2.4.1  Device ID ===
356	356
	412	+
357	357	(((
358	358	By default, the Device ID equal to the last 6 bytes of IMEI.
359	359	)))
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360	360
361	361	(((
362	362	User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
	419	+
	420	+
363	363	)))
364	364
365	365	(((
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378	378
379	379	=== 2.4.2  Version Info ===
380	380
	439	+
381	381	(((
382	382	Specify the software version: 0x64=100, means firmware version 1.00.
383	383	)))
...	...	@@ -390,9 +390,6 @@
390	390
391	391	=== 2.4.3  Battery Info ===
392	392
393		-(((
394		-Check the battery voltage for LSE01.
395		-)))
396	396
397	397	(((
398	398	Ex1: 0x0B45 = 2885mV
...	...	@@ -406,6 +406,7 @@
406	406
407	407	=== 2.4.4  Signal Strength ===
408	408
	465	+
409	409	(((
410	410	NB-IoT Network signal Strength.
411	411	)))
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438	438
439	439	=== 2.4.5  Distance ===
440	440
	498	+
441	441	Get the distance. Flat object range 280mm - 7500mm.
442	442
	501	+(((
443	443	For example, if the data you get from the register is **__0x0B 0x05__**, the distance between the sensor and the measured object is
	503	+)))
444	444
445	445	(((
446	446	(((
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458	458
459	459	=== 2.4.6  Digital Interrupt ===
460	460
	521	+
461	461	(((
462	462	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.
463	463	)))
...	...	@@ -492,6 +492,7 @@
492	492
493	493	=== 2.4.7  ​+5V Output ===
494	494
	556	+
495	495	(((
496	496	NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling.
497	497	)))
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499	499
500	500	(((
501	501	The 5V output time can be controlled by AT Command.
	564	+
	565	+
502	502	)))
503	503
504	504	(((
505	505	(% style="color:blue" %)**AT+5VT=1000**
	570	+
	571	+
506	506	)))
507	507
508	508	(((
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513	513
514	514	== 2.5  Downlink Payload ==
515	515
	582	+
516	516	By default, NDDS75 prints the downlink payload to console port.
517	517
518	518	[[image:image-20220709100028-1.png]]
...	...	@@ -583,19 +583,23 @@
583	583	== 2.7  ​Firmware Change Log ==
584	584
585	585
586		-Download URL & Firmware Change log
	653	+(((
	654	+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]]
	655	+)))
587	587
588	588	(((
589		-[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/]]
	658	+
590	590	)))
591	591
	661	+(((
	662	+Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
	663	+)))
592	592
593		-Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
594	594
595	595
596		-
597	597	== 2.8  ​Battery Analysis ==
598	598
	669	+
599	599	=== 2.8.1  ​Battery Type ===
600	600
601	601
...	...	@@ -623,6 +623,7 @@
623	623
624	624	=== 2.8.2  Power consumption Analyze ===
625	625
	697	+
626	626	(((
627	627	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.
628	628	)))
...	...	@@ -661,6 +661,7 @@
661	661
662	662	=== 2.8.3  ​Battery Note ===
663	663
	736	+
664	664	(((
665	665	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.
666	666	)))
...	...	@@ -669,6 +669,7 @@
669	669
670	670	=== 2.8.4  Replace the battery ===
671	671
	745	+
672	672	(((
673	673	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).
674	674	)))
...	...	@@ -677,6 +677,7 @@
677	677
678	678	= 3. ​ Access NB-IoT Module =
679	679
	754	+
680	680	(((
681	681	Users can directly access the AT command set of the NB-IoT module.
682	682	)))
...	...	@@ -683,6 +683,8 @@
683	683
684	684	(((
685	685	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/]]
	761	+
	762	+
686	686	)))
687	687
688	688	[[image:1657333200519-600.png]]
...	...	@@ -691,11 +691,13 @@
691	691
692	692	= 4.  Using the AT Commands =
693	693
	771	+
694	694	== 4.1  Access AT Commands ==
695	695
696		-See this link for detail: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/]]
697	697
	775	+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]]
698	698
	777	+
699	699	AT+<CMD>?  : Help on <CMD>
700	700
701	701	AT+<CMD>         : Run <CMD>
...	...	@@ -769,6 +769,7 @@
769	769
770	770	= ​5.  FAQ =
771	771
	851	+
772	772	== 5.1 ​ How to Upgrade Firmware ==
773	773
774	774
...	...	@@ -781,7 +781,7 @@
781	781	)))
782	782
783	783	(((
784		-(% style="color:red" %)Notice, NDDS75 and LDDS75 share the same mother board. They use the same connection and method to update.
	864	+(% style="color:red" %)**Notice, NDDS75 and LDDS75 share the same mother board. They use the same connection and method to update.**
785	785	)))
786	786
787	787
...	...	@@ -788,6 +788,7 @@
788	788
789	789	= 6.  Trouble Shooting =
790	790
	871	+
791	791	== 6.1  ​Connection problem when uploading firmware ==
792	792
793	793
...	...	@@ -803,6 +803,7 @@
803	803
804	804	== 6.2  AT Command input doesn't work ==
805	805
	887	+
806	806	(((
807	807	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.
808	808
...	...	@@ -828,7 +828,7 @@
828	828
829	829	(% style="color:#037691" %)**Package Includes**:
830	830
831		-* NSE01 NB-IoT Distance Detect Sensor Node x 1
	913	+* NDDS75 NB-IoT Distance Detect Sensor Node x 1
832	832	* External antenna x 1
833	833	)))
834	834
...	...	@@ -837,7 +837,6 @@
837	837
838	838	(% style="color:#037691" %)**Dimension and weight**:
839	839
840		-
841	841	* Device Size: 13.0 x 5 x 4.5 cm
842	842	* Device Weight: 150g
843	843	* Package Size / pcs : 15 x 12x 5.5 cm
...	...	@@ -853,5 +853,9 @@
853	853
854	854	= 9.  Support =
855	855
	937	+
856	856	* 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.
857	857	* 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]]
	940	+
	941	+
	942	+