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...	...	@@ -16,6 +16,7 @@
16	16
17	17	= 1.  Introduction =
18	18
	19	+
19	19	== 1.1 ​ What is NDDS75 Distance Detection Sensor ==
20	20
21	21	(((
...	...	@@ -53,6 +53,7 @@
53	53	[[image:1657327959271-447.png]]
54	54
55	55
	57	+
56	56	== 1.2 ​ Features ==
57	57
58	58
...	...	@@ -69,7 +69,6 @@
69	69	* Micro SIM card slot for NB-IoT SIM
70	70	* 8500mAh Battery for long term use
71	71
72		-
73	73	== 1.3  Specification ==
74	74
75	75
...	...	@@ -80,12 +80,12 @@
80	80
81	81	(% style="color:#037691" %)**NB-IoT Spec:**
82	82
83		-* B1 @H-FDD: 2100MHz
84		-* B3 @H-FDD: 1800MHz
85		-* B8 @H-FDD: 900MHz
86		-* B5 @H-FDD: 850MHz
87		-* B20 @H-FDD: 800MHz
88		-* B28 @H-FDD: 700MHz
	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
89	89
90	90	(% style="color:#037691" %)**Battery:**
91	91
...	...	@@ -100,7 +100,6 @@
100	100	* STOP Mode: 10uA @ 3.3v
101	101	* Max transmit power: 350mA@3.3v
102	102
103		-
104	104	== ​1.4  Applications ==
105	105
106	106
...	...	@@ -115,6 +115,8 @@
115	115	​
116	116
117	117
	118	+
	119	+
118	118	== 1.5  Pin Definitions ==
119	119
120	120
...	...	@@ -121,8 +121,10 @@
121	121	[[image:1657328609906-564.png]]
122	122
123	123
	126	+
124	124	= 2.  Use NDDS75 to communicate with IoT Server =
125	125
	129	+
126	126	== 2.1  How it works ==
127	127
128	128
...	...	@@ -145,8 +145,10 @@
145	145
146	146	)))
147	147
	152	+
148	148	== 2.2 ​ Configure the NDDS75 ==
149	149
	155	+
150	150	=== 2.2.1 Test Requirement ===
151	151
152	152
...	...	@@ -166,6 +166,7 @@
166	166	[[image:1657328756309-230.png]]
167	167
168	168
	175	+
169	169	=== 2.2.2 Insert SIM card ===
170	170
171	171
...	...	@@ -181,6 +181,7 @@
181	181	[[image:1657328884227-504.png]]
182	182
183	183
	191	+
184	184	=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
185	185
186	186
...	...	@@ -193,13 +193,13 @@
193	193	[[image:image-20220709092052-2.png]]
194	194
195	195
196		-(% style="color:blue" %)**Connection:**
	204	+**Connection:**
197	197
198		- (% style="background-color:yellow" %)**USB TTL GND <~-~-~-~-> GND**
	206	+ (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
199	199
200		-**~ (% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD(%%)**
	208	+ (% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD
201	201
202		-**~ (% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD(%%)**
	210	+ (% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD
203	203
204	204
205	205	In the PC, use below serial tool settings:
...	...	@@ -222,6 +222,7 @@
222	222	)))
223	223
224	224
	233	+
225	225	=== 2.2.4 Use CoAP protocol to uplink data ===
226	226
227	227
...	...	@@ -236,10 +236,10 @@
236	236	(% style="color:blue" %)**AT+PRO=1**  (%%) ~/~/ Set to use CoAP protocol to uplink
237	237	)))
238	238	* (((
239		-(% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/  to set CoAP server address and port
	248	+(% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%)~/~/ to set CoAP server address and port
240	240	)))
241	241	* (((
242		-(% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/  Set COAP resource path
	251	+(% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
243	243
244	244
245	245
...	...	@@ -264,12 +264,13 @@
264	264	[[image:1657330472797-498.png]]
265	265
266	266
	276	+
267	267	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
268	268
269	269
270		-* (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/  Set to use UDP protocol to uplink
271		-* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/  to set UDP server address and port
272		-* (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/  If the server does not respond, this command is unnecessary
	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
273	273
274	274	[[image:1657330501006-241.png]]
275	275
...	...	@@ -277,16 +277,17 @@
277	277	[[image:1657330533775-472.png]]
278	278
279	279
	290	+
280	280	=== 2.2.6 Use MQTT protocol to uplink data ===
281	281
282	282
283		-* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/  Set to use MQTT protocol to uplink
284		-* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/  Set MQTT server address and port
285		-* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/  Set up the CLIENT of MQTT
286		-* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/  Set the username of MQTT
287		-* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/  Set the password of MQTT
288		-* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/  Set the sending topic of MQTT
289		-* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/  Set the subscription topic of MQTT
	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
290	290
291	291	[[image:1657249978444-674.png]]
292	292
...	...	@@ -299,11 +299,12 @@
299	299	)))
300	300
301	301
	313	+
302	302	=== 2.2.7 Use TCP protocol to uplink data ===
303	303
304	304
305		-* (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/  Set to use TCP protocol to uplink
306		-* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/  to set TCP server address and port
	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
307	307
308	308	[[image:image-20220709093918-1.png]]
309	309
...	...	@@ -311,42 +311,42 @@
311	311	[[image:image-20220709093918-2.png]]
312	312
313	313
	326	+
314	314	=== 2.2.8 Change Update Interval ===
315	315
316	316
317	317	User can use below command to change the (% style="color:green" %)**uplink interval**.
318	318
319		-* (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/  Set Update Interval to 600s
	332	+* (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
320	320
321	321	(((
322		-
	335	+(% style="color:red" %)**NOTE 1: By default, the device will send an uplink message every 1 hour.**
323	323
324		-
325		-(% style="color:red" %)**NOTE:**
326		-
327		-(% style="color:red" %)**1. By default, the device will send an uplink message every 1 hour.**
328		-
329		-(% style="color:red" %)**2. When the firmware version is v1.3.2 and later firmware:**
	337	+
330	330	)))
331	331
	340	+(% style="color:red" %)**NOTE 2: When the firmware version is v1.3.2 and later firmware:**
	341	+
332	332	(% 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).**
333	333
334	334
	345	+
335	335	== 2.3  Uplink Payload ==
336	336
337		-=== 2.3.1  Before Firmware v1.3.2 ===
338	338
	349	+=== 2.3.1  Before Firmware 1.3.2 ===
339	339
	351	+
340	340	In this mode, uplink payload includes in total 14 bytes
341	341
342		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:440px" %)
343		-|=(% style="width: 61px;background-color:#D9E2F3;color:#0070C0" %)(((
	354	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %)
	355	+|=(% style="width: 60px;" %)(((
344	344	**Size(bytes)**
345		-)))|=(% style="width: 61px;background-color:#D9E2F3;color:#0070C0" %)**6**|=(% style="width: 37px;background-color:#D9E2F3;color:#0070C0" %)2|=(% style="width: 37px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 82px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 102px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**1**
	357	+)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 100px;" %)**2**|=(% style="width: 60px;" %)**1**
346	346	|(% 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"]]
347	347
348	348	(((
349		-If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS75 uplink data.
	361	+If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS751 uplink data.
350	350	)))
351	351
352	352
...	...	@@ -353,35 +353,49 @@
353	353	[[image:1657331036973-987.png]]
354	354
355	355
	368	+(((
356	356	The payload is **ASCII** string, representative same HEX:
	370	+)))
357	357
358		-(% style="background-color:yellow" %)**0x 724031556159 0064 0c6c 19 0292 00 **
	372	+(((
	373	+0x72403155615900640c6c19029200 where:
	374	+)))
359	359
360		-**where :**
	376	+* (((
	377	+Device ID: 0x724031556159 = 724031556159
	378	+)))
	379	+* (((
	380	+Version:  0x0064=100=1.0.0
	381	+)))
361	361
362		-* (% style="color:#037691" %)**Device ID:**(%%) 0x724031556159 = 724031556159
	383	+* (((
	384	+BAT:  0x0c6c = 3180 mV = 3.180V
	385	+)))
	386	+* (((
	387	+Signal: 0x19 = 25
	388	+)))
	389	+* (((
	390	+Distance: 0x0292= 658 mm
	391	+)))
	392	+* (((
	393	+Interrupt: 0x00 = 0
363	363
364		-* (% style="color:#037691" %)**Version:**(%%)  0x0064=100=1.0.0
365	365
366		-* (% style="color:#037691" %)**BAT:** (%%) 0x0c6c = 3180 mV = 3.180V
367	367
368		-* (% style="color:#037691" %)**Signal:**(%%)  0x19 = 25
369	369
370		-* (% style="color:#037691" %)**Distance:**  (%%)0x0292= 658 mm
	398	+
	399	+)))
371	371
372		-* (% style="color:#037691" %)**Interrupt:**(%%) 0x00 = 0
	401	+=== **2.3.2  Since firmware v1.3.2** ===
373	373
374	374
375		-=== 2.3.2  Since firmware v1.3.2 ===
376		-
377		-
378	378	In this mode, uplink payload includes 69 bytes in total by default.
379	379
380	380	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.
381	381
382		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:490px" %)
383		-|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**8**|(% style="background-color:#d9e2f3; color:#0070c0; width:25px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:25px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:25px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)**4**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**4**
384		-|=(% 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.......
	408	+(% border="2" style="background-color:#ffffcc; color:green; width:896px" %)
	409	+|(% 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
	410	+|(% 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.......
385	385
386	386	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS75 uplink data.
387	387
...	...	@@ -390,33 +390,26 @@
390	390
391	391	The payload is ASCII string, representative same HEX:
392	392
393		-**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 (%%)**
	419	+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:
394	394
395		-**where:**
	421	+* (% style="color:green" %)Device ID: f867787050213317 = f867787050213317
	422	+* (% style="color:red" %)Version: 0x0084=132=1.3.2
	423	+* (% style="color:green" %)BAT: 0x0cf4 = 3316 mV = 3.316V
	424	+* (% style="color:blue" %)Singal: 0x1e = 30
	425	+* (% style="color:red" %)Mod: 0x01 = 1
	426	+* Interrupt: 0x00= 0
	427	+* Distance: 0x0039= 57 = 57
	428	+* Time stamp : 0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
	429	+* Distance,Time stamp : 00396319baf0
	430	+* (% style="color:red" %) 8 sets of recorded data: Distance,Time stamp : //**00396319ba3c**//,.......
396	396
397		-* (% style="color:#037691" %)**Device ID:**(%%) f867787050213317 = f867787050213317
398	398
399		-* (% style="color:#037691" %)**Version:**(%%) 0x0084=132=1.3.2
400	400
401		-* (% style="color:#037691" %)**BAT:**(%%)  0x0cf4 = 3316 mV = 3.316V
402	402
403		-* (% style="color:#037691" %)**Singal:**(%%)  0x1e = 30
404	404
405		-* (% style="color:#037691" %)**Mod:**(%%)**     **0x01 = 1
406		-
407		-* (% style="color:#037691" %)**Interrupt:**(%%) 0x00= 0
408		-
409		-* (% style="color:#037691" %)**Distance:**(%%) 0x0039= 57 = 57
410		-
411		-* (% style="color:#037691" %)**Time stamp:**(%%) 0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
412		-
413		-* (% style="color:#037691" %)**Distance,Time stamp:**(%%) 00396319baf0
414		-
415		-* (% style="color:#037691" %)**8 sets of recorded data: Distance,Time stamp :**(%%) //**00396319ba3c**//,.......
416		-
417		-
418	418	== 2.4  Payload Explanation and Sensor Interface ==
419	419
	438	+
420	420	=== 2.4.1  Device ID ===
421	421
422	422
...	...	@@ -455,6 +455,7 @@
455	455	AT+DEUI=868411056754138
456	456
457	457
	477	+
458	458	=== 2.4.2  Version Info ===
459	459
460	460
...	...	@@ -467,6 +467,7 @@
467	467	)))
468	468
469	469
	490	+
470	470	=== 2.4.3  Battery Info ===
471	471
472	472
...	...	@@ -479,6 +479,7 @@
479	479	)))
480	480
481	481
	503	+
482	482	=== 2.4.4  Signal Strength ===
483	483
484	484
...	...	@@ -511,6 +511,7 @@
511	511	)))
512	512
513	513
	536	+
514	514	=== 2.4.5  Distance ===
515	515
516	516
...	...	@@ -530,6 +530,10 @@
530	530
531	531	)))
532	532
	556	+(((
	557	+
	558	+)))
	559	+
533	533	=== 2.4.6  Digital Interrupt ===
534	534
535	535
...	...	@@ -542,7 +542,7 @@
542	542	)))
543	543
544	544	(((
545		-(% 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	+(% 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]])**.**
546	546	)))
547	547
548	548
...	...	@@ -564,6 +564,7 @@
564	564	)))
565	565
566	566
	594	+
567	567	=== 2.4.7  ​+5V Output ===
568	568
569	569
...	...	@@ -589,17 +589,15 @@
589	589	)))
590	590
591	591
	620	+
592	592	== 2.5  Downlink Payload ==
593	593
594	594
595	595	By default, NDDS75 prints the downlink payload to console port.
596	596
597		-(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
598		-|(% style="background-color:#d9e2f3; color:#0070c0; width:208px" %)**Downlink Control Type**|(% style="background-color:#d9e2f3; color:#0070c0; width:56px" %)**FPort**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**Type Code**|(% style="background-color:#d9e2f3; color:#0070c0; width:154px" %)**Downlink payload size(bytes)**
599		-|(% style="width:208px" %)TDC (Transmit Time Interval)|(% style="width:56px" %)Any|(% style="width:100px" %)01|(% style="width:154px" %)4
600		-|(% style="width:208px" %)RESET|(% style="width:56px" %)Any|(% style="width:100px" %)04|(% style="width:154px" %)2
601		-|(% style="width:208px" %)INTMOD|(% style="width:56px" %)Any|(% style="width:100px" %)06|(% style="width:154px" %)4
	626	+[[image:image-20220709100028-1.png]]
602	602
	628	+
603	603	(((
604	604	(% style="color:blue" %)**Examples:**
605	605	)))
...	...	@@ -644,6 +644,7 @@
644	644	)))
645	645
646	646
	673	+
647	647	== 2.6  Distance alarm function(Since firmware v1.3.2) ==
648	648
649	649
...	...	@@ -663,17 +663,16 @@
663	663	**AT+ LDDSALARM=260,2000**  ~/~/ Alarm when distance lower than 260.
664	664
665	665
	693	+
666	666	== 2.7  Set the number of data to be uploaded and the recording time ==
667	667
668	668
669	669	(% style="color:blue" %)** ➢ AT Command:**
670	670
671		-* (% 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)
672		-* (% 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.
	699	+(% 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)
673	673
674		- The diagram below explains the relationship between TR, NOUD, and TDC more clearly**:**
	701	+(% 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.
675	675
676		-[[image:image-20221009001114-1.png||height="687" width="955"]]
677	677
678	678
679	679	== 2.8  Read or Clear cached data ==
...	...	@@ -681,12 +681,16 @@
681	681
682	682	(% style="color:blue" %)** ➢ AT Command:**
683	683
684		-* (% style="color:#037691" %)** AT+CDP ** (%%) ~/~/  Read cached data
685		-* (% style="color:#037691" %)** AT+CDP=0**  (%%) ~/~/  Clear cached data
	710	+(% style="color:#037691" %)** AT+CDP ** (%%) ~/~/ Read cached data
686	686
	712	+
687	687	[[image:image-20220908175333-2.png]]
688	688
689	689
	716	+(% style="color:#037691" %)** AT+CDP=0**  (%%) ~/~/ Clear cached data
	717	+
	718	+
	719	+
690	690	== 2.9  ​LED Indicator ==
691	691
692	692
...	...	@@ -703,6 +703,7 @@
703	703	)))
704	704
705	705
	736	+
706	706	== 2.10  ​Firmware Change Log ==
707	707
708	708
...	...	@@ -711,18 +711,100 @@
711	711	)))
712	712
713	713	(((
	745	+
	746	+)))
	747	+
	748	+(((
714	714	Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
715	715	)))
716	716
717	717
718		-== 2.11 Battery & Power Consumption ==
719	719
	754	+== 2.11  ​Battery Analysis ==
720	720
721		-NDDS75 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
722	722
723		-[[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	757	+=== 2.11.1  ​Battery Type ===
724	724
725	725
	760	+(((
	761	+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.
	762	+)))
	763	+
	764	+(((
	765	+The battery is designed to last for several years depends on the actually use environment and update interval.
	766	+)))
	767	+
	768	+(((
	769	+The battery related documents as below:
	770	+)))
	771	+
	772	+* [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	773	+* [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	774	+* [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	775	+
	776	+(((
	777	+[[image:image-20220709101450-2.png]]
	778	+)))
	779	+
	780	+
	781	+
	782	+=== 2.11.2  Power consumption Analyze ===
	783	+
	784	+
	785	+(((
	786	+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.
	787	+)))
	788	+
	789	+
	790	+(((
	791	+Instruction to use as below:
	792	+)))
	793	+
	794	+(((
	795	+(% 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/]]
	796	+)))
	797	+
	798	+
	799	+(((
	800	+(% style="color:blue" %)**Step 2: **(%%) Open it and choose
	801	+)))
	802	+
	803	+* (((
	804	+Product Model
	805	+)))
	806	+* (((
	807	+Uplink Interval
	808	+)))
	809	+* (((
	810	+Working Mode
	811	+)))
	812	+
	813	+(((
	814	+And the Life expectation in difference case will be shown on the right.
	815	+)))
	816	+
	817	+[[image:image-20220709110451-3.png]]
	818	+
	819	+
	820	+
	821	+=== 2.11.3  ​Battery Note ===
	822	+
	823	+
	824	+(((
	825	+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.
	826	+)))
	827	+
	828	+
	829	+
	830	+=== 2.11.4  Replace the battery ===
	831	+
	832	+
	833	+(((
	834	+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).
	835	+)))
	836	+
	837	+
	838	+
726	726	= 3. ​ Access NB-IoT Module =
727	727
728	728
...	...	@@ -739,8 +739,10 @@
739	739	[[image:1657333200519-600.png]]
740	740
741	741
	855	+
742	742	= 4.  Using the AT Commands =
743	743
	858	+
744	744	== 4.1  Access AT Commands ==
745	745
746	746
...	...	@@ -747,94 +747,96 @@
747	747	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]]
748	748
749	749
750		-AT+<CMD>?  :  Help on <CMD>
	865	+AT+<CMD>?  : Help on <CMD>
751	751
752		-AT+<CMD>         :  Run <CMD>
	867	+AT+<CMD>         : Run <CMD>
753	753
754		-AT+<CMD>=<value> :  Set the value
	869	+AT+<CMD>=<value> : Set the value
755	755
756		-AT+<CMD>=?  :  Get the value
	871	+AT+<CMD>=?  : Get the value
757	757
758	758
759	759	(% style="color:#037691" %)**General Commands**(%%)
760	760
761		-AT  :  Attention
	876	+AT  : Attention
762	762
763		-AT?  :  Short Help
	878	+AT?  : Short Help
764	764
765		-ATZ  :  MCU Reset
	880	+ATZ  : MCU Reset
766	766
767		-AT+TDC  :  Application Data Transmission Interval
	882	+AT+TDC  : Application Data Transmission Interval
768	768
769		-AT+CFG  :  Print all configurations
	884	+AT+CFG  : Print all configurations
770	770
771		-AT+CFGMOD           :  Working mode selection
	886	+AT+CFGMOD           : Working mode selection
772	772
773		-AT+INTMOD            :  Set the trigger interrupt mode
	888	+AT+INTMOD            : Set the trigger interrupt mode
774	774
775		-AT+5VT  :  Set extend the time of 5V power
	890	+AT+5VT  : Set extend the time of 5V power
776	776
777		-AT+PRO  :  Choose agreement
	892	+AT+PRO  : Choose agreement
778	778
779		-AT+WEIGRE  :  Get weight or set weight to 0
	894	+AT+WEIGRE  : Get weight or set weight to 0
780	780
781		-AT+WEIGAP  :  Get or Set the GapValue of weight
	896	+AT+WEIGAP  : Get or Set the GapValue of weight
782	782
783		-AT+RXDL  :  Extend the sending and receiving time
	898	+AT+RXDL  : Extend the sending and receiving time
784	784
785		-AT+CNTFAC  :  Get or set counting parameters
	900	+AT+CNTFAC  : Get or set counting parameters
786	786
787		-AT+SERVADDR  :  Server Address
	902	+AT+SERVADDR  : Server Address
788	788
789		-AT+TR  :  Get or Set record time"
	904	+AT+TR      : Get or Set record time"
790	790
791		-AT+APN     :  Get or set the APN
	906	+AT+APN     : Get or set the APN
792	792
793		-AT+FBAND  :  Get or Set whether to automatically modify the frequency band
	908	+AT+FBAND   : Get or Set whether to automatically modify the frequency band
794	794
795		-AT+DNSCFG  : Get or Set DNS Server
	910	+AT+DNSCFG  : Get or Set DNS Server
796	796
797		-AT+GETSENSORVALUE   :  Returns the current sensor measurement
	912	+AT+GETSENSORVALUE   : Returns the current sensor measurement
798	798
799		-AT+NOUD  :  Get or Set the number of data to be uploaded
	914	+AT+NOUD      : Get or Set the number of data to be uploaded
800	800
801		-AT+CDP     :  Read or Clear cached data
	916	+AT+CDP     : Read or Clear cached data
802	802
803		-AT+LDDSALARM :  Get or Set alarm of distance
	918	+AT+LDDSALARM : Get or Set alarm of distance
804	804
805	805
806	806	(% style="color:#037691" %)**COAP Management**
807	807
808		-AT+URI            :  Resource parameters
	923	+AT+URI            : Resource parameters
809	809
810	810
811	811	(% style="color:#037691" %)**UDP Management**
812	812
813		-AT+CFM          :  Upload confirmation mode (only valid for UDP)
	928	+AT+CFM          : Upload confirmation mode (only valid for UDP)
814	814
815	815
816	816	(% style="color:#037691" %)**MQTT Management**
817	817
818		-AT+CLIENT  :  Get or Set MQTT client
	933	+AT+CLIENT               : Get or Set MQTT client
819	819
820		-AT+UNAME  :  Get or Set MQTT Username
	935	+AT+UNAME  : Get or Set MQTT Username
821	821
822		-AT+PWD  :  Get or Set MQTT password
	937	+AT+PWD                  : Get or Set MQTT password
823	823
824		-AT+PUBTOPIC  :  Get or Set MQTT publish topic
	939	+AT+PUBTOPIC  : Get or Set MQTT publish topic
825	825
826		-AT+SUBTOPIC  :  Get or Set MQTT subscription topic
	941	+AT+SUBTOPIC  : Get or Set MQTT subscription topic
827	827
828	828
829	829	(% style="color:#037691" %)**Information**
830	830
831		-AT+FDR  :  Factory Data Reset
	946	+AT+FDR  : Factory Data Reset
832	832
833		-AT+PWORD  :  Serial Access Password
	948	+AT+PWORD  : Serial Access Password
834	834
835	835
	951	+
836	836	= ​5.  FAQ =
837	837
	954	+
838	838	== 5.1 ​ How to Upgrade Firmware ==
839	839
840	840
...	...	@@ -851,8 +851,10 @@
851	851	)))
852	852
853	853
	971	+
854	854	= 6.  Trouble Shooting =
855	855
	974	+
856	856	== 6.1  ​Connection problem when uploading firmware ==
857	857
858	858
...	...	@@ -865,20 +865,17 @@
865	865
866	866	)))
867	867
	987	+
868	868	== 6.2  AT Command input doesn't work ==
869	869
870	870
871	871	(((
872	872	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.
	993	+
	994	+
873	873	)))
874	874
875	875
876		-== 6.3 Not able to connect to NB-IoT network and keep showing "Signal Strength:99". ==
877		-
878		-
879		-This means sensor is trying to join the NB-IoT network but fail. Please see this link for **//[[trouble shooting for signal strenght:99>>doc:Main.CSQ\:99,99.WebHome]]//**.
880		-
881		-
882	882	= 7. ​ Order Info =
883	883
884	884
...	...	@@ -885,6 +885,11 @@
885	885	Part Number**:** (% style="color:#4f81bd" %)**NSDDS75**
886	886
887	887
	1004	+(% class="wikigeneratedid" %)
	1005	+(((
	1006	+
	1007	+)))
	1008	+
888	888	= 8.  Packing Info =
889	889
890	890	(((
...	...	@@ -899,6 +899,7 @@
899	899	(((
900	900
901	901
	1023	+
902	902	(% style="color:#037691" %)**Dimension and weight**:
903	903
904	904	* Device Size: 13.0 x 5 x 4.5 cm
...	...	@@ -910,6 +910,7 @@
910	910	(((
911	911
912	912
	1035	+
913	913
914	914	)))
915	915
...	...	@@ -917,5 +917,4 @@
917	917
918	918
919	919	* 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.
920		-
921	921	* 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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