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Author

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1		-XWiki.Xiaoling
	1	+XWiki.Edwin

Content

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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	(((
...	...	@@ -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
...	...	@@ -247,8 +247,6 @@
247	247
248	248	(((
249	249	For parameter description, please refer to AT command set
250		-
251		-
252	252	)))
253	253
254	254	[[image:1657330452568-615.png]]
...	...	@@ -257,19 +257,18 @@
257	257
258	258	(((
259	259	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.
260		-
261		-
262	262	)))
263	263
264	264	[[image:1657330472797-498.png]]
265	265
266	266
	272	+
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
	276	+* (% style="color:blue" %)**AT+PRO=2   ** (%%) ~/~/ Set to use UDP protocol to uplink
	277	+* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
	278	+* (% 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
	286	+
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
	290	+* (% style="color:blue" %)**AT+PRO=3   ** (%%) ~/~/Set to use MQTT protocol to uplink
	291	+* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/Set MQTT server address and port
	292	+* (% style="color:blue" %)**AT+CLIENT=CLIENT       ** (%%)~/~/Set up the CLIENT of MQTT
	293	+* (% style="color:blue" %)**AT+UNAME=UNAME                                **(%%)~/~/Set the username of MQTT
	294	+* (% style="color:blue" %)**AT+PWD=PWD                                         **(%%)~/~/Set the password of MQTT
	295	+* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/Set the sending topic of MQTT
	296	+* (% 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
	309	+
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
	313	+* (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/ Set to use TCP protocol to uplink
	314	+* (% 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 +311,40 @@
311	311	[[image:image-20220709093918-2.png]]
312	312
313	313
	322	+
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
	328	+* (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
320	320
321	321	(((
322		-
	331	+(% style="color:red" %)**NOTE: 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:**
	333	+
330	330	)))
331	331
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).**
	336	+**NOTE:When the firmware version is v1.3.2 and later firmware:**
333	333
	338	+**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).**
334	334
	340	+
335	335	== 2.3  Uplink Payload ==
336	336
337		-=== 2.3.1  Before Firmware v1.3.2 ===
338	338
	344	+=== 2.3.1 Before Firmware 1.3.2 ===
339	339
340	340	In this mode, uplink payload includes in total 14 bytes
341	341
342		-(% border="1" cellspacing="10" style="background-color:#f2f2f2; width:440px" %)
343		-|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)(((
	348	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %)
	349	+|=(% style="width: 60px;" %)(((
344	344	**Size(bytes)**
345		-)))|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**6**|=(% style="width: 35px;background-color:#D9E2F3;color:#0070C0" %)2|=(% style="width: 35px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**1**
	351	+)))|=(% 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.
	355	+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
...	...	@@ -353,68 +353,67 @@
353	353	[[image:1657331036973-987.png]]
354	354
355	355
356		-The payload is **ASCII** string, representative same HEX:
	362	+(((
	363	+The payload is ASCII string, representative same HEX:
	364	+)))
357	357
358		-(% style="background-color:yellow" %)**0x 724031556159 0064 0c6c 19 0292 00 **
	366	+(((
	367	+0x72403155615900640c6c19029200 where:
	368	+)))
359	359
360		-**where :**
	370	+* (((
	371	+Device ID: 0x724031556159 = 724031556159
	372	+)))
	373	+* (((
	374	+Version: 0x0064=100=1.0.0
	375	+)))
361	361
362		-* (% style="color:#037691" %)**Device ID:**(%%) 0x724031556159 = 724031556159
	377	+* (((
	378	+BAT: 0x0c6c = 3180 mV = 3.180V
	379	+)))
	380	+* (((
	381	+Signal: 0x19 = 25
	382	+)))
	383	+* (((
	384	+Distance: 0x0292= 658 mm
	385	+)))
	386	+* (((
	387	+Interrupt: 0x00 = 0
363	363
364		-* (% style="color:#037691" %)**Version:**(%%)  0x0064=100=1.0.0
	389	+
	390	+)))
365	365
366		-* (% style="color:#037691" %)**BAT:** (%%) 0x0c6c = 3180 mV = 3.180V
	392	+=== **2.3.2 Since firmware v1.3.2** ===
367	367
368		-* (% style="color:#037691" %)**Signal:**(%%)  0x19 = 25
369		-
370		-* (% style="color:#037691" %)**Distance:**  (%%)0x0292= 658 mm
371		-
372		-* (% style="color:#037691" %)**Interrupt:**(%%) 0x00 = 0
373		-
374		-=== 2.3.2  Since firmware v1.3.2 ===
375		-
376		-
377	377	In this mode, uplink payload includes 69 bytes in total by default.
378	378
379	379	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.
380	380
381		-(% border="1" style="background-color:#f2f2f2; width:490px" %)
382		-|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**8**|(% style="width:25px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:25px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:60px;background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="width:25px;background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:70px;background-color:#D9E2F3;color:#0070C0" %)**4**|(% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:60px;background-color:#D9E2F3;color:#0070C0" %)**4**
383		-|=(% 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.......
	398	+|**Size(bytes)**|**8**|2|2|1|1|1|2|4|2|4
	399	+|**Value**|Device ID|Ver|BAT|Signal Strength|MOD|Interrupt|Distance|Timestamp|Distance|Timestamp.......
384	384
385	385	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS75 uplink data.
386	386
387	387	[[image:image-20220908175246-1.png]]
388	388
389		-
390	390	The payload is ASCII string, representative same HEX:
391	391
392		-**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 (%%)**
	407	+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:
393	393
394		-**where:**
	409	+* (% style="color:green" %)Device ID: f867787050213317 = f867787050213317
	410	+* (% style="color:red" %)Version: 0x0084=132=1.3.2
	411	+* (% style="color:green" %)BAT: 0x0cf4 = 3316 mV = 3.316V
	412	+* (% style="color:blue" %)Singal: 0x1e = 30
	413	+* (% style="color:red" %)Mod: 0x01 = 1
	414	+* Interrupt: 0x00= 0
	415	+* Distance: 0x0039= 57 = 57
	416	+* Time stamp : 0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
	417	+* Distance,Time stamp : 00396319baf0
	418	+* (% style="color:red" %) 8 sets of recorded data: Distance,Time stamp : //**00396319ba3c**//,.......
395	395
396		-* (% style="color:#037691" %)**Device ID:**(%%) f867787050213317 = f867787050213317
397		-
398		-* (% style="color:#037691" %)**Version:**(%%) 0x0084=132=1.3.2
399		-
400		-* (% style="color:#037691" %)**BAT:**(%%)  0x0cf4 = 3316 mV = 3.316V
401		-
402		-* (% style="color:#037691" %)**Singal:**(%%)  0x1e = 30
403		-
404		-* (% style="color:#037691" %)**Mod:**(%%)**     **0x01 = 1
405		-
406		-* (% style="color:#037691" %)**Interrupt:**(%%) 0x00= 0
407		-
408		-* (% style="color:#037691" %)**Distance:**(%%) 0x0039= 57 = 57
409		-
410		-* (% style="color:#037691" %)**Time stamp:**(%%) 0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
411		-
412		-* (% style="color:#037691" %)**Distance,Time stamp:**(%%) 00396319baf0
413		-
414		-* (% style="color:#037691" %)**8 sets of recorded data: Distance,Time stamp :**(%%) //**00396319ba3c**//,.......
415		-
416	416	== 2.4  Payload Explanation and Sensor Interface ==
417	417
	422	+
418	418	=== 2.4.1  Device ID ===
419	419
420	420
...	...	@@ -429,7 +429,7 @@
429	429	)))
430	430
431	431	(((
432		-(% style="color:blue" %)**Example :**
	437	+**Example:**
433	433	)))
434	434
435	435	(((
...	...	@@ -437,22 +437,20 @@
437	437	)))
438	438
439	439	(((
440		-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.
	445	+The Device ID is stored in a none-erase area, Upgrade the firmware or run **AT+FDR** won't erase Device ID.
441	441	)))
442	442
443	443
444		-(% style="color:red" %)**NOTE: When the firmware version is v1.3.2 and later firmware:**
	449	+**NOTE:When the firmware version is v1.3.2 and later firmware:**
445	445
446		-(% style="color:red" %)**By default, the Device ID equal to the last 15 bits of IMEI.**
	451	+By default, the Device ID equal to the last 15 bits of IMEI.
447	447
448		-User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
	453	+User can use **AT+DEUI** to set Device ID
449	449
	455	+**Example:**
450	450
451		-(% style="color:blue" %)**Example :**
452		-
453	453	AT+DEUI=868411056754138
454	454
455		-
456	456	=== 2.4.2  Version Info ===
457	457
458	458
...	...	@@ -465,6 +465,7 @@
465	465	)))
466	466
467	467
	471	+
468	468	=== 2.4.3  Battery Info ===
469	469
470	470
...	...	@@ -477,6 +477,7 @@
477	477	)))
478	478
479	479
	484	+
480	480	=== 2.4.4  Signal Strength ===
481	481
482	482
...	...	@@ -509,6 +509,7 @@
509	509	)))
510	510
511	511
	517	+
512	512	=== 2.4.5  Distance ===
513	513
514	514
...	...	@@ -528,6 +528,10 @@
528	528
529	529	)))
530	530
	537	+(((
	538	+
	539	+)))
	540	+
531	531	=== 2.4.6  Digital Interrupt ===
532	532
533	533
...	...	@@ -540,7 +540,7 @@
540	540	)))
541	541
542	542	(((
543		-(% 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]])**.**
	553	+(% 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]])**.**
544	544	)))
545	545
546	546
...	...	@@ -562,6 +562,7 @@
562	562	)))
563	563
564	564
	575	+
565	565	=== 2.4.7  ​+5V Output ===
566	566
567	567
...	...	@@ -587,6 +587,7 @@
587	587	)))
588	588
589	589
	601	+
590	590	== 2.5  Downlink Payload ==
591	591
592	592
...	...	@@ -639,13 +639,12 @@
639	639	)))
640	640
641	641
642		-== 2.6  Distance alarm function(Since firmware v1.3.2) ==
	654	+== 2.6 Distance alarm function(Since firmware v1.3.2) ==
643	643
	656	+➢ AT Command:
644	644
645		-(% style="color:blue" %)** ➢ AT Command:**
	658	+AT+ LDDSALARM=min,max
646	646
647		-(% style="color:#037691" %)** AT+ LDDSALARM=min,max**
648		-
649	649	² When min=0, and max≠0, Alarm higher than max
650	650
651	651	² When min≠0, and max=0, Alarm lower than min
...	...	@@ -652,35 +652,28 @@
652	652
653	653	² When min≠0 and max≠0, Alarm higher than max or lower than min
654	654
	666	+Example:
655	655
656		-(% style="color:blue" %)** Example:**
	668	+AT+ LDDSALARM=260,2000 ~/~/ Alarm when distance lower than 260.
657	657
658		-**AT+ LDDSALARM=260,2000**  ~/~/ Alarm when distance lower than 260.
659	659
	671	+== 2.7 Set the number of data to be uploaded and the recording time ==
660	660
661		-== 2.7  Set the number of data to be uploaded and the recording time ==
	673	+➢ AT Command:
662	662
	675	+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)
663	663
664		-(% style="color:blue" %)** ➢ AT Command:**
	677	+AT+NOUD=8  ~/~/The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
665	665
666		-* (% 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)
667		-* (% 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.
	679	+== 2.8 Read or Clear cached data ==
668	668
669		- The diagram below explains the relationship between TR, NOUD, and TDC more clearly**:**
	681	+➢ AT Command:
670	670
671		-[[image:image-20221009001114-1.png||height="687" width="955"]]
	683	+AT+CDP ~/~/ Read cached data
672	672
673		-
674		-== 2.8  Read or Clear cached data ==
675		-
676		-
677		-(% style="color:blue" %)** ➢ AT Command:**
678		-
679		-* (% style="color:#037691" %)** AT+CDP ** (%%) ~/~/  Read cached data
680		-* (% style="color:#037691" %)** AT+CDP=0**  (%%) ~/~/  Clear cached data
681		-
682	682	[[image:image-20220908175333-2.png]]
683	683
	687	+AT+CDP=0 ~/~/ Clear cached data
684	684
685	685	== 2.9  ​LED Indicator ==
686	686
...	...	@@ -698,6 +698,7 @@
698	698	)))
699	699
700	700
	705	+
701	701	== 2.10  ​Firmware Change Log ==
702	702
703	703
...	...	@@ -706,18 +706,100 @@
706	706	)))
707	707
708	708	(((
	714	+
	715	+)))
	716	+
	717	+(((
709	709	Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
710	710	)))
711	711
712	712
713		-== 2.11 Battery & Power Consumption ==
714	714
	723	+== 2.11  ​Battery Analysis ==
715	715
716		-NDDS75 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
717	717
718		-[[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	726	+=== 2.11.1  ​Battery Type ===
719	719
720	720
	729	+(((
	730	+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.
	731	+)))
	732	+
	733	+(((
	734	+The battery is designed to last for several years depends on the actually use environment and update interval.
	735	+)))
	736	+
	737	+(((
	738	+The battery related documents as below:
	739	+)))
	740	+
	741	+* [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	742	+* [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	743	+* [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	744	+
	745	+(((
	746	+[[image:image-20220709101450-2.png]]
	747	+)))
	748	+
	749	+
	750	+
	751	+=== 2.11.2  Power consumption Analyze ===
	752	+
	753	+
	754	+(((
	755	+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.
	756	+)))
	757	+
	758	+
	759	+(((
	760	+Instruction to use as below:
	761	+)))
	762	+
	763	+(((
	764	+(% 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/]]
	765	+)))
	766	+
	767	+
	768	+(((
	769	+(% style="color:blue" %)**Step 2: **(%%) Open it and choose
	770	+)))
	771	+
	772	+* (((
	773	+Product Model
	774	+)))
	775	+* (((
	776	+Uplink Interval
	777	+)))
	778	+* (((
	779	+Working Mode
	780	+)))
	781	+
	782	+(((
	783	+And the Life expectation in difference case will be shown on the right.
	784	+)))
	785	+
	786	+[[image:image-20220709110451-3.png]]
	787	+
	788	+
	789	+
	790	+=== 2.11.3  ​Battery Note ===
	791	+
	792	+
	793	+(((
	794	+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.
	795	+)))
	796	+
	797	+
	798	+
	799	+=== 2.11.4  Replace the battery ===
	800	+
	801	+
	802	+(((
	803	+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).
	804	+)))
	805	+
	806	+
	807	+
721	721	= 3. ​ Access NB-IoT Module =
722	722
723	723
...	...	@@ -734,8 +734,10 @@
734	734	[[image:1657333200519-600.png]]
735	735
736	736
	824	+
737	737	= 4.  Using the AT Commands =
738	738
	827	+
739	739	== 4.1  Access AT Commands ==
740	740
741	741
...	...	@@ -742,94 +742,96 @@
742	742	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]]
743	743
744	744
745		-AT+<CMD>?  :  Help on <CMD>
	834	+AT+<CMD>?  : Help on <CMD>
746	746
747		-AT+<CMD>         :  Run <CMD>
	836	+AT+<CMD>         : Run <CMD>
748	748
749		-AT+<CMD>=<value> :  Set the value
	838	+AT+<CMD>=<value> : Set the value
750	750
751		-AT+<CMD>=?  :  Get the value
	840	+AT+<CMD>=?  : Get the value
752	752
753	753
754	754	(% style="color:#037691" %)**General Commands**(%%)
755	755
756		-AT  :  Attention
	845	+AT  : Attention
757	757
758		-AT?  :  Short Help
	847	+AT?  : Short Help
759	759
760		-ATZ  :  MCU Reset
	849	+ATZ  : MCU Reset
761	761
762		-AT+TDC  :  Application Data Transmission Interval
	851	+AT+TDC  : Application Data Transmission Interval
763	763
764		-AT+CFG  :  Print all configurations
	853	+AT+CFG  : Print all configurations
765	765
766		-AT+CFGMOD           :  Working mode selection
	855	+AT+CFGMOD           : Working mode selection
767	767
768		-AT+INTMOD            :  Set the trigger interrupt mode
	857	+AT+INTMOD            : Set the trigger interrupt mode
769	769
770		-AT+5VT  :  Set extend the time of 5V power
	859	+AT+5VT  : Set extend the time of 5V power
771	771
772		-AT+PRO  :  Choose agreement
	861	+AT+PRO  : Choose agreement
773	773
774		-AT+WEIGRE  :  Get weight or set weight to 0
	863	+AT+WEIGRE  : Get weight or set weight to 0
775	775
776		-AT+WEIGAP  :  Get or Set the GapValue of weight
	865	+AT+WEIGAP  : Get or Set the GapValue of weight
777	777
778		-AT+RXDL  :  Extend the sending and receiving time
	867	+AT+RXDL  : Extend the sending and receiving time
779	779
780		-AT+CNTFAC  :  Get or set counting parameters
	869	+AT+CNTFAC  : Get or set counting parameters
781	781
782		-AT+SERVADDR  :  Server Address
	871	+AT+SERVADDR  : Server Address
783	783
784		-AT+TR  :  Get or Set record time"
	873	+AT+TR      : Get or Set record time"
785	785
786		-AT+APN     :  Get or set the APN
	875	+AT+APN     : Get or set the APN
787	787
788		-AT+FBAND  :  Get or Set whether to automatically modify the frequency band
	877	+AT+FBAND   : Get or Set whether to automatically modify the frequency band
789	789
790		-AT+DNSCFG  : Get or Set DNS Server
	879	+AT+DNSCFG  : Get or Set DNS Server
791	791
792		-AT+GETSENSORVALUE   :  Returns the current sensor measurement
	881	+AT+GETSENSORVALUE   : Returns the current sensor measurement
793	793
794		-AT+NOUD  :  Get or Set the number of data to be uploaded
	883	+AT+NOUD      : Get or Set the number of data to be uploaded
795	795
796		-AT+CDP     :  Read or Clear cached data
	885	+AT+CDP     : Read or Clear cached data
797	797
798		-AT+LDDSALARM :  Get or Set alarm of distance
	887	+AT+LDDSALARM : Get or Set alarm of distance
799	799
800	800
801	801	(% style="color:#037691" %)**COAP Management**
802	802
803		-AT+URI            :  Resource parameters
	892	+AT+URI            : Resource parameters
804	804
805	805
806	806	(% style="color:#037691" %)**UDP Management**
807	807
808		-AT+CFM          :  Upload confirmation mode (only valid for UDP)
	897	+AT+CFM          : Upload confirmation mode (only valid for UDP)
809	809
810	810
811	811	(% style="color:#037691" %)**MQTT Management**
812	812
813		-AT+CLIENT  :  Get or Set MQTT client
	902	+AT+CLIENT               : Get or Set MQTT client
814	814
815		-AT+UNAME  :  Get or Set MQTT Username
	904	+AT+UNAME  : Get or Set MQTT Username
816	816
817		-AT+PWD  :  Get or Set MQTT password
	906	+AT+PWD                  : Get or Set MQTT password
818	818
819		-AT+PUBTOPIC  :  Get or Set MQTT publish topic
	908	+AT+PUBTOPIC  : Get or Set MQTT publish topic
820	820
821		-AT+SUBTOPIC  :  Get or Set MQTT subscription topic
	910	+AT+SUBTOPIC  : Get or Set MQTT subscription topic
822	822
823	823
824	824	(% style="color:#037691" %)**Information**
825	825
826		-AT+FDR  :  Factory Data Reset
	915	+AT+FDR  : Factory Data Reset
827	827
828		-AT+PWORD  :  Serial Access Password
	917	+AT+PWORD  : Serial Access Password
829	829
830	830
	920	+
831	831	= ​5.  FAQ =
832	832
	923	+
833	833	== 5.1 ​ How to Upgrade Firmware ==
834	834
835	835
...	...	@@ -846,8 +846,10 @@
846	846	)))
847	847
848	848
	940	+
849	849	= 6.  Trouble Shooting =
850	850
	943	+
851	851	== 6.1  ​Connection problem when uploading firmware ==
852	852
853	853
...	...	@@ -860,20 +860,17 @@
860	860
861	861	)))
862	862
	956	+
863	863	== 6.2  AT Command input doesn't work ==
864	864
865	865
866	866	(((
867	867	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.
	962	+
	963	+
868	868	)))
869	869
870	870
871		-== 6.3 Not able to connect to NB-IoT network and keep showing "Signal Strength:99". ==
872		-
873		-
874		-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]]//**.
875		-
876		-
877	877	= 7. ​ Order Info =
878	878
879	879
...	...	@@ -880,6 +880,11 @@
880	880	Part Number**:** (% style="color:#4f81bd" %)**NSDDS75**
881	881
882	882
	973	+(% class="wikigeneratedid" %)
	974	+(((
	975	+
	976	+)))
	977	+
883	883	= 8.  Packing Info =
884	884
885	885	(((
...	...	@@ -894,6 +894,7 @@
894	894	(((
895	895
896	896
	992	+
897	897	(% style="color:#037691" %)**Dimension and weight**:
898	898
899	899	* Device Size: 13.0 x 5 x 4.5 cm
...	...	@@ -905,6 +905,7 @@
905	905	(((
906	906
907	907
	1004	+
908	908
909	909	)))
910	910
...	...	@@ -912,5 +912,4 @@
912	912
913	913
914	914	* 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.
915		-
916	916	* 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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