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16	16
17	17	= 1.  Introduction =
18	18
	19	+
19	19	== 1.1 ​ What is NDDS75 Distance Detection Sensor ==
20	20
21	21	(((
...	...	@@ -22,14 +22,31 @@
22	22
23	23
24	24	(((
	26	+(((
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
	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.
	32	+)))
	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.
	36	+)))
	37	+
	38	+(((
	39	+NDDS75 supports different uplink methods include (% style="color:blue" %)**TCP, MQTT, UDP and CoAP** (%%)for different application requirement.
	40	+)))
	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)
	44	+)))
	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.
	48	+)))
	49	+)))
	50	+
33	33
34	34	)))
35	35
...	...	@@ -54,7 +54,6 @@
54	54	* 8500mAh Battery for long term use
55	55
56	56
57		-
58	58	== 1.3  Specification ==
59	59
60	60
...	...	@@ -65,12 +65,12 @@
65	65
66	66	(% style="color:#037691" %)**NB-IoT Spec:**
67	67
68		-* - B1 @H-FDD: 2100MHz
69		-* - B3 @H-FDD: 1800MHz
70		-* - B8 @H-FDD: 900MHz
71		-* - B5 @H-FDD: 850MHz
72		-* - B20 @H-FDD: 800MHz
73		-* - B28 @H-FDD: 700MHz
	85	+* B1 @H-FDD: 2100MHz
	86	+* B3 @H-FDD: 1800MHz
	87	+* B8 @H-FDD: 900MHz
	88	+* B5 @H-FDD: 850MHz
	89	+* B20 @H-FDD: 800MHz
	90	+* B28 @H-FDD: 700MHz
74	74
75	75	(% style="color:#037691" %)**Battery:**
76	76
...	...	@@ -86,9 +86,9 @@
86	86	* Max transmit power: 350mA@3.3v
87	87
88	88
89		-
90	90	== ​1.4  Applications ==
91	91
	108	+
92	92	* Smart Buildings & Home Automation
93	93	* Logistics and Supply Chain Management
94	94	* Smart Metering
...	...	@@ -100,6 +100,7 @@
100	100	​
101	101
102	102
	120	+
103	103	== 1.5  Pin Definitions ==
104	104
105	105
...	...	@@ -109,8 +109,10 @@
109	109
110	110	= 2.  Use NDDS75 to communicate with IoT Server =
111	111
	130	+
112	112	== 2.1  How it works ==
113	113
	133	+
114	114	(((
115	115	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.
116	116	)))
...	...	@@ -136,16 +136,17 @@
136	136
137	137	=== 2.2.1 Test Requirement ===
138	138
	159	+
139	139	(((
140	140	To use NDDS75 in your city, make sure meet below requirements:
141	141	)))
142	142
143	143	* Your local operator has already distributed a NB-IoT Network there.
144		-* The local NB-IoT network used the band that NSE01 supports.
	165	+* The local NB-IoT network used the band that NDDS75 supports.
145	145	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
146	146
147	147	(((
148		-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
	169	+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.
149	149	)))
150	150
151	151
...	...	@@ -155,6 +155,7 @@
155	155
156	156	=== 2.2.2 Insert SIM card ===
157	157
	179	+
158	158	(((
159	159	Insert the NB-IoT Card get from your provider.
160	160	)))
...	...	@@ -170,6 +170,7 @@
170	170
171	171	=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
172	172
	195	+
173	173	(((
174	174	(((
175	175	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.
...	...	@@ -178,15 +178,16 @@
178	178
179	179	[[image:image-20220709092052-2.png]]
180	180
181		-**Connection:**
182	182
183		- (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
	205	+(% style="color:blue" %)**Connection:**
184	184
185		- (% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD
	207	+ (% style="background-color:yellow" %)**USB TTL GND <~-~-~-~-> GND**
186	186
187		- (% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD
	209	+**~ (% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD(%%)**
188	188
	211	+**~ (% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD(%%)**
189	189
	213	+
190	190	In the PC, use below serial tool settings:
191	191
192	192	* Baud:  (% style="color:green" %)**9600**
...	...	@@ -201,8 +201,9 @@
201	201
202	202	[[image:1657329814315-101.png]]
203	203
	228	+
204	204	(((
205		-(% 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/]]
	230	+(% 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]]**
206	206	)))
207	207
208	208
...	...	@@ -209,9 +209,10 @@
209	209
210	210	=== 2.2.4 Use CoAP protocol to uplink data ===
211	211
212		-(% 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/]]
213	213
	238	+(% 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/]]**
214	214
	240	+
215	215	(((
216	216	**Use below commands:**
217	217	)))
...	...	@@ -220,21 +220,29 @@
220	220	(% style="color:blue" %)**AT+PRO=1**  (%%) ~/~/ Set to use CoAP protocol to uplink
221	221	)))
222	222	* (((
223		-(% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/ to set CoAP server address and port
	249	+(% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/  to set CoAP server address and port
224	224	)))
225	225	* (((
226		-(% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
	252	+(% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/  Set COAP resource path
	253	+
	254	+
	255	+
227	227	)))
228	228
229	229	(((
230	230	For parameter description, please refer to AT command set
	260	+
	261	+
231	231	)))
232	232
233	233	[[image:1657330452568-615.png]]
234	234
235	235
	267	+
236	236	(((
237	237	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.
	270	+
	271	+
238	238	)))
239	239
240	240	[[image:1657330472797-498.png]]
...	...	@@ -244,9 +244,9 @@
244	244	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
245	245
246	246
247		-* (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink
248		-* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
249		-* (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/ If the server does not respond, this command is unnecessary
	281	+* (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/  Set to use UDP protocol to uplink
	282	+* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/  to set UDP server address and port
	283	+* (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/  If the server does not respond, this command is unnecessary
250	250
251	251	[[image:1657330501006-241.png]]
252	252
...	...	@@ -258,13 +258,13 @@
258	258	=== 2.2.6 Use MQTT protocol to uplink data ===
259	259
260	260
261		-* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
262		-* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
263		-* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
264		-* (% style="color:blue" %)**AT+UNAME=UNAME  **(%%)~/~/Set the username of MQTT
265		-* (% style="color:blue" %)**AT+PWD=PWD  **(%%)~/~/Set the password of MQTT
266		-* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/Set the sending topic of MQTT
267		-* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/Set the subscription topic of MQTT
	295	+* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/  Set to use MQTT protocol to uplink
	296	+* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/  Set MQTT server address and port
	297	+* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/  Set up the CLIENT of MQTT
	298	+* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/  Set the username of MQTT
	299	+* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/  Set the password of MQTT
	300	+* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/  Set the sending topic of MQTT
	301	+* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/  Set the subscription topic of MQTT
268	268
269	269	[[image:1657249978444-674.png]]
270	270
...	...	@@ -281,8 +281,8 @@
281	281	=== 2.2.7 Use TCP protocol to uplink data ===
282	282
283	283
284		-* (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/ Set to use TCP protocol to uplink
285		-* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/ to set TCP server address and port
	318	+* (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/  Set to use TCP protocol to uplink
	319	+* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/  to set TCP server address and port
286	286
287	287	[[image:image-20220709093918-1.png]]
288	288
...	...	@@ -293,75 +293,116 @@
293	293
294	294	=== 2.2.8 Change Update Interval ===
295	295
	330	+
296	296	User can use below command to change the (% style="color:green" %)**uplink interval**.
297	297
298		-* (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
	333	+* (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/  Set Update Interval to 600s
299	299
300	300	(((
	336	+
	337	+
	338	+
301	301	(% style="color:red" %)**NOTE:**
302		-)))
303	303
304		-(((
305		-(% style="color:red" %)1. By default, the device will send an uplink message every 1 hour.
	341	+(% style="color:red" %)**1. By default, the device will send an uplink message every 1 hour.**
	342	+
	343	+(% style="color:red" %)**2. When the firmware version is v1.3.2 and later firmware:**
306	306	)))
307	307
	346	+(% 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).**
308	308
309	309
	349	+
310	310	== 2.3  Uplink Payload ==
311	311
312		-In this mode, uplink payload includes in total 14 bytes
313	313
	353	+=== 2.3.1  Before Firmware v1.3.2 ===
314	314
315		-(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	355	+
	356	+In this mode, uplink payload includes in total 14 bytes
	357	+
	358	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %)
316	316	|=(% style="width: 60px;" %)(((
317	317	**Size(bytes)**
318		-)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 80px;" %)**2**|=(% style="width: 60px;" %)**1**
	361	+)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 100px;" %)**2**|=(% style="width: 60px;" %)**1**
319	319	|(% 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"]]
320	320
321	321	(((
322		-If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS751 uplink data.
	365	+If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS75 uplink data.
323	323	)))
324	324
325	325
326	326	[[image:1657331036973-987.png]]
327	327
328		-(((
	371	+
	372	+
	373	+The payload is **ASCII** string, representative same HEX:
	374	+
	375	+(% style="background-color:yellow" %)**0x 724031556159 0064 0c6c 19 0292 00 **
	376	+
	377	+**where :**
	378	+
	379	+* (% style="color:#037691" %)**Device ID:**(%%) 0x724031556159 = 724031556159
	380	+
	381	+* (% style="color:#037691" %)**Version:**(%%)  0x0064=100=1.0.0
	382	+
	383	+* (% style="color:#037691" %)**BAT:** (%%) 0x0c6c = 3180 mV = 3.180V
	384	+
	385	+* (% style="color:#037691" %)**Signal:**(%%)  0x19 = 25
	386	+
	387	+* (% style="color:#037691" %)**Distance:**  (%%)0x0292= 658 mm
	388	+
	389	+* (% style="color:#037691" %)**Interrupt:**(%%) 0x00 = 0
	390	+
	391	+
	392	+=== 2.3.2  Since firmware v1.3.2 ===
	393	+
	394	+
	395	+In this mode, uplink payload includes 69 bytes in total by default.
	396	+
	397	+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.
	398	+
	399	+(% border="1" style="background-color:#ffffcc; color:green; width:490px" %)
	400	+|=(% scope="row" style="width: 60px;" %)**Size(bytes)**|(% style="width:40px" %)**8**|(% style="width:25px" %)**2**|(% style="width:25px" %)**2**|(% style="width:60px" %)**1**|(% style="width:25px" %)**1**|(% style="width:40px" %)**1**|(% style="width:40px" %)**2**|(% style="width:70px" %)**4**|(% style="width:40px" %)**2**|(% style="width:60px" %)**4**
	401	+|=(% 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.......
	402	+
	403	+If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS75 uplink data.
	404	+
	405	+[[image:image-20220908175246-1.png]]
	406	+
	407	+
329	329	The payload is ASCII string, representative same HEX:
330		-)))
331	331
332		-(((
333		-0x72403155615900640c6c19029200 where:
334		-)))
	410	+**0x (% style="color:red" %)f867787050213317 (% style="color:blue" %)0084 (% style="color:green" %)0cf4 (% style="color:#00b0f0" %)1e (% style="color:#7030a0" %)01 (% style="color:#d60093" %)00(% style="color:#a14d07" %) 0039 (% style="color:#0020b0" %)6315537b (% style="color:#663300" %)00396319baf0 00396319ba3c 00396319b988 00396319b8d4 00396319b820 00396319b76c 00396319b6b8 00396319b604 (%%)**
335	335
336		-* (((
337		-Device ID: 0x724031556159 = 724031556159
338		-)))
339		-* (((
340		-Version: 0x0064=100=1.0.0
341		-)))
	412	+**where:**
342	342
343		-* (((
344		-BAT: 0x0c6c = 3180 mV = 3.180V
345		-)))
346		-* (((
347		-Signal: 0x19 = 25
348		-)))
349		-* (((
350		-Distance: 0x0292= 658 mm
351		-)))
352		-* (((
353		-Interrupt: 0x00 = 0
	414	+* (% style="color:#037691" %)**Device ID:**(%%) f867787050213317 = f867787050213317
354	354
	416	+* (% style="color:#037691" %)**Version:**(%%) 0x0084=132=1.3.2
355	355
	418	+* (% style="color:#037691" %)**BAT:**(%%)  0x0cf4 = 3316 mV = 3.316V
356	356
357		-
358		-)))
	420	+* (% style="color:#037691" %)**Singal:**(%%)  0x1e = 30
359	359
	422	+* (% style="color:#037691" %)**Mod:**(%%)**     **0x01 = 1
	423	+
	424	+* (% style="color:#037691" %)**Interrupt:**(%%) 0x00= 0
	425	+
	426	+* (% style="color:#037691" %)**Distance:**(%%) 0x0039= 57 = 57
	427	+
	428	+* (% style="color:#037691" %)**Time stamp:**(%%) 0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
	429	+
	430	+* (% style="color:#037691" %)**Distance,Time stamp:**(%%) 00396319baf0
	431	+
	432	+* (% style="color:#037691" %)**8 sets of recorded data: Distance,Time stamp :**(%%) //**00396319ba3c**//,.......
	433	+
360	360	== 2.4  Payload Explanation and Sensor Interface ==
361	361
362	362
363	363	=== 2.4.1  Device ID ===
364	364
	439	+
365	365	(((
366	366	By default, the Device ID equal to the last 6 bytes of IMEI.
367	367	)))
...	...	@@ -368,10 +368,12 @@
368	368
369	369	(((
370	370	User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
	446	+
	447	+
371	371	)))
372	372
373	373	(((
374		-**Example:**
	451	+(% style="color:blue" %)**Example :**
375	375	)))
376	376
377	377	(((
...	...	@@ -379,13 +379,26 @@
379	379	)))
380	380
381	381	(((
382		-The Device ID is stored in a none-erase area, Upgrade the firmware or run **AT+FDR** won't erase Device ID.
	459	+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.
383	383	)))
384	384
385	385
	463	+(% style="color:red" %)**NOTE: When the firmware version is v1.3.2 and later firmware:**
386	386
	465	+(% style="color:red" %)**By default, the Device ID equal to the last 15 bits of IMEI.**
	466	+
	467	+User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
	468	+
	469	+
	470	+(% style="color:blue" %)**Example :**
	471	+
	472	+AT+DEUI=868411056754138
	473	+
	474	+
	475	+
387	387	=== 2.4.2  Version Info ===
388	388
	478	+
389	389	(((
390	390	Specify the software version: 0x64=100, means firmware version 1.00.
391	391	)))
...	...	@@ -398,6 +398,7 @@
398	398
399	399	=== 2.4.3  Battery Info ===
400	400
	491	+
401	401	(((
402	402	Ex1: 0x0B45 = 2885mV
403	403	)))
...	...	@@ -410,6 +410,7 @@
410	410
411	411	=== 2.4.4  Signal Strength ===
412	412
	504	+
413	413	(((
414	414	NB-IoT Network signal Strength.
415	415	)))
...	...	@@ -442,9 +442,12 @@
442	442
443	443	=== 2.4.5  Distance ===
444	444
	537	+
445	445	Get the distance. Flat object range 280mm - 7500mm.
446	446
	540	+(((
447	447	For example, if the data you get from the register is **__0x0B 0x05__**, the distance between the sensor and the measured object is
	542	+)))
448	448
449	449	(((
450	450	(((
...	...	@@ -462,6 +462,7 @@
462	462
463	463	=== 2.4.6  Digital Interrupt ===
464	464
	560	+
465	465	(((
466	466	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.
467	467	)))
...	...	@@ -471,7 +471,7 @@
471	471	)))
472	472
473	473	(((
474		-(% 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]])**.**
	570	+(% 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]])**.**
475	475	)))
476	476
477	477
...	...	@@ -496,6 +496,7 @@
496	496
497	497	=== 2.4.7  ​+5V Output ===
498	498
	595	+
499	499	(((
500	500	NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling.
501	501	)))
...	...	@@ -503,10 +503,14 @@
503	503
504	504	(((
505	505	The 5V output time can be controlled by AT Command.
	603	+
	604	+
506	506	)))
507	507
508	508	(((
509	509	(% style="color:blue" %)**AT+5VT=1000**
	609	+
	610	+
510	510	)))
511	511
512	512	(((
...	...	@@ -517,6 +517,7 @@
517	517
518	518	== 2.5  Downlink Payload ==
519	519
	621	+
520	520	By default, NDDS75 prints the downlink payload to console port.
521	521
522	522	[[image:image-20220709100028-1.png]]
...	...	@@ -567,120 +567,96 @@
567	567
568	568
569	569
570		-== 2.6  ​LED Indicator ==
	672	+== 2.6  Distance alarm function(Since firmware v1.3.2) ==
571	571
572	572
573		-The NDDS75 has an internal LED which is to show the status of different state.
	675	+(% style="color:blue" %)** ➢ AT Command:**
574	574
	677	+(% style="color:#037691" %)** AT+ LDDSALARM=min,max**
575	575
576		-* 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)
577		-* Then the LED will be on for 1 second means device is boot normally.
578		-* After NDDS75 join NB-IoT network. The LED will be ON for 3 seconds.
579		-* For each uplink probe, LED will be on for 500ms.
	679	+² When min=0, and max≠0, Alarm higher than max
580	580
581		-(((
582		-
583		-)))
	681	+² When min≠0, and max=0, Alarm lower than min
584	584
	683	+² When min≠0 and max≠0, Alarm higher than max or lower than min
585	585
586	586
587		-== 2.7  ​Firmware Change Log ==
	686	+(% style="color:blue" %)** Example:**
588	588
	688	+**AT+ LDDSALARM=260,2000**  ~/~/ Alarm when distance lower than 260.
589	589
590		-Download URL & Firmware Change log
591	591
592		-(((
593		-[[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/]]
594		-)))
595	595
	692	+== 2.7  Set the number of data to be uploaded and the recording time ==
596	596
597		-Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
598	598
	695	+(% style="color:blue" %)** ➢ AT Command:**
599	599
	697	+* (% 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)
	698	+* (% 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.
600	600
601		-== 2.8  ​Battery Analysis ==
	700	+ The diagram below explains the relationship between TR, NOUD, and TDC more clearly**:**
602	602
603		-=== 2.8.1  ​Battery Type ===
	702	+[[image:image-20221009001114-1.png||height="687" width="955"]]
604	604
605	605
606		-(((
607		-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.
608		-)))
609	609
610		-(((
611		-The battery is designed to last for several years depends on the actually use environment and update interval.
612		-)))
	706	+== 2.8  Read or Clear cached data ==
613	613
614		-(((
615		-The battery related documents as below:
616		-)))
617	617
618		-* [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
619		-* [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
620		-* [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	709	+(% style="color:blue" %)** ➢ AT Command:**
621	621
622		-(((
623		-[[image:image-20220709101450-2.png]]
624		-)))
	711	+* (% style="color:#037691" %)** AT+CDP ** (%%) ~/~/  Read cached data
	712	+* (% style="color:#037691" %)** AT+CDP=0**  (%%) ~/~/  Clear cached data
625	625
	714	+[[image:image-20220908175333-2.png]]
626	626
627	627
628		-=== 2.8.2  Power consumption Analyze ===
629	629
630		-(((
631		-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.
632		-)))
	718	+== 2.9  ​LED Indicator ==
633	633
634	634
635		-(((
636		-Instruction to use as below:
637		-)))
	721	+The NDDS75 has an internal LED which is to show the status of different state.
638	638
639		-(((
640		-(% 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/]]
641		-)))
642	642
	724	+* 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)
	725	+* Then the LED will be on for 1 second means device is boot normally.
	726	+* After NDDS75 join NB-IoT network. The LED will be ON for 3 seconds.
	727	+* For each uplink probe, LED will be on for 500ms.
643	643
644	644	(((
645		-(% style="color:blue" %)**Step 2: **(%%) Open it and choose
	730	+
646	646	)))
647	647
648		-* (((
649		-Product Model
650		-)))
651		-* (((
652		-Uplink Interval
653		-)))
654		-* (((
655		-Working Mode
656		-)))
657	657
658		-(((
659		-And the Life expectation in difference case will be shown on the right.
660		-)))
661	661
662		-[[image:image-20220709110451-3.png]]
	735	+== 2.10  ​Firmware Change Log ==
663	663
664	664
	738	+(((
	739	+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]]
	740	+)))
665	665
666		-=== 2.8.3  ​Battery Note ===
	742	+(((
	743	+
	744	+)))
667	667
668	668	(((
669		-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.
	747	+Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
670	670	)))
671	671
672	672
673	673
674		-=== 2.8.4  Replace the battery ===
	752	+== 2.11 Battery & Power Consumption ==
675	675
676		-(((
677		-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).
678		-)))
679	679
	755	+PS-LB-NA uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
680	680
	757	+[[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
681	681
682	682	= 3. ​ Access NB-IoT Module =
683	683
	761	+
684	684	(((
685	685	Users can directly access the AT command set of the NB-IoT module.
686	686	)))
...	...	@@ -687,6 +687,8 @@
687	687
688	688	(((
689	689	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/]]
	768	+
	769	+
690	690	)))
691	691
692	692	[[image:1657333200519-600.png]]
...	...	@@ -695,84 +695,103 @@
695	695
696	696	= 4.  Using the AT Commands =
697	697
	778	+
698	698	== 4.1  Access AT Commands ==
699	699
700		-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/]]
701	701
	782	+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]]
702	702
703		-AT+<CMD>?  : Help on <CMD>
704	704
705		-AT+<CMD>         : Run <CMD>
	785	+AT+<CMD>?  :  Help on <CMD>
706	706
707		-AT+<CMD>=<value> : Set the value
	787	+AT+<CMD>         :  Run <CMD>
708	708
709		-AT+<CMD>=?  : Get the value
	789	+AT+<CMD>=<value> :  Set the value
710	710
	791	+AT+<CMD>=?  :  Get the value
711	711
	793	+
712	712	(% style="color:#037691" %)**General Commands**(%%)
713	713
714		-AT  : Attention
	796	+AT  :  Attention
715	715
716		-AT?  : Short Help
	798	+AT?  :  Short Help
717	717
718		-ATZ  : MCU Reset
	800	+ATZ  :  MCU Reset
719	719
720		-AT+TDC  : Application Data Transmission Interval
	802	+AT+TDC  :  Application Data Transmission Interval
721	721
722		-AT+CFG  : Print all configurations
	804	+AT+CFG  :  Print all configurations
723	723
724		-AT+CFGMOD           : Working mode selection
	806	+AT+CFGMOD           :  Working mode selection
725	725
726		-AT+INTMOD            : Set the trigger interrupt mode
	808	+AT+INTMOD            :  Set the trigger interrupt mode
727	727
728		-AT+5VT  : Set extend the time of 5V power
	810	+AT+5VT  :  Set extend the time of 5V power
729	729
730		-AT+PRO  : Choose agreement
	812	+AT+PRO  :  Choose agreement
731	731
732		-AT+WEIGRE  : Get weight or set weight to 0
	814	+AT+WEIGRE  :  Get weight or set weight to 0
733	733
734		-AT+WEIGAP  : Get or Set the GapValue of weight
	816	+AT+WEIGAP  :  Get or Set the GapValue of weight
735	735
736		-AT+RXDL  : Extend the sending and receiving time
	818	+AT+RXDL  :  Extend the sending and receiving time
737	737
738		-AT+CNTFAC  : Get or set counting parameters
	820	+AT+CNTFAC  :  Get or set counting parameters
739	739
740		-AT+SERVADDR  : Server Address
	822	+AT+SERVADDR  :  Server Address
741	741
	824	+AT+TR  :  Get or Set record time"
742	742
	826	+AT+APN     :  Get or set the APN
	827	+
	828	+AT+FBAND  :  Get or Set whether to automatically modify the frequency band
	829	+
	830	+AT+DNSCFG  : Get or Set DNS Server
	831	+
	832	+AT+GETSENSORVALUE   :  Returns the current sensor measurement
	833	+
	834	+AT+NOUD  :  Get or Set the number of data to be uploaded
	835	+
	836	+AT+CDP     :  Read or Clear cached data
	837	+
	838	+AT+LDDSALARM :  Get or Set alarm of distance
	839	+
	840	+
743	743	(% style="color:#037691" %)**COAP Management**
744	744
745		-AT+URI            : Resource parameters
	843	+AT+URI            :  Resource parameters
746	746
747	747
748	748	(% style="color:#037691" %)**UDP Management**
749	749
750		-AT+CFM          : Upload confirmation mode (only valid for UDP)
	848	+AT+CFM          :  Upload confirmation mode (only valid for UDP)
751	751
752	752
753	753	(% style="color:#037691" %)**MQTT Management**
754	754
755		-AT+CLIENT               : Get or Set MQTT client
	853	+AT+CLIENT  :  Get or Set MQTT client
756	756
757		-AT+UNAME  : Get or Set MQTT Username
	855	+AT+UNAME  :  Get or Set MQTT Username
758	758
759		-AT+PWD                  : Get or Set MQTT password
	857	+AT+PWD  :  Get or Set MQTT password
760	760
761		-AT+PUBTOPIC  : Get or Set MQTT publish topic
	859	+AT+PUBTOPIC  :  Get or Set MQTT publish topic
762	762
763		-AT+SUBTOPIC  : Get or Set MQTT subscription topic
	861	+AT+SUBTOPIC  :  Get or Set MQTT subscription topic
764	764
765	765
766	766	(% style="color:#037691" %)**Information**
767	767
768		-AT+FDR  : Factory Data Reset
	866	+AT+FDR  :  Factory Data Reset
769	769
770		-AT+PWORD  : Serial Access Password
	868	+AT+PWORD  :  Serial Access Password
771	771
772	772
773	773
774	774	= ​5.  FAQ =
775	775
	874	+
776	776	== 5.1 ​ How to Upgrade Firmware ==
777	777
778	778
...	...	@@ -785,7 +785,7 @@
785	785	)))
786	786
787	787	(((
788		-(% style="color:red" %)Notice, NDDS75 and LDDS75 share the same mother board. They use the same connection and method to update.
	887	+(% style="color:red" %)**Notice, NDDS75 and LDDS75 share the same mother board. They use the same connection and method to update.**
789	789	)))
790	790
791	791
...	...	@@ -792,6 +792,7 @@
792	792
793	793	= 6.  Trouble Shooting =
794	794
	894	+
795	795	== 6.1  ​Connection problem when uploading firmware ==
796	796
797	797
...	...	@@ -807,6 +807,7 @@
807	807
808	808	== 6.2  AT Command input doesn't work ==
809	809
	910	+
810	810	(((
811	811	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.
812	812
...	...	@@ -832,7 +832,7 @@
832	832
833	833	(% style="color:#037691" %)**Package Includes**:
834	834
835		-* NSE01 NB-IoT Distance Detect Sensor Node x 1
	936	+* NDDS75 NB-IoT Distance Detect Sensor Node x 1
836	836	* External antenna x 1
837	837	)))
838	838
...	...	@@ -839,9 +839,9 @@
839	839	(((
840	840
841	841
	943	+
842	842	(% style="color:#037691" %)**Dimension and weight**:
843	843
844		-
845	845	* Device Size: 13.0 x 5 x 4.5 cm
846	846	* Device Weight: 150g
847	847	* Package Size / pcs : 15 x 12x 5.5 cm
...	...	@@ -857,5 +857,6 @@
857	857
858	858	= 9.  Support =
859	859
	961	+
860	860	* 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.
861	861	* 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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