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16	16
17	17	= 1.  Introduction =
18	18
19		-
20	20	== 1.1 ​ What is NDDS75 Distance Detection Sensor ==
21	21
22	22	(((
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54	54	[[image:1657327959271-447.png]]
55	55
56	56
57		-
58	58	== 1.2 ​ Features ==
59	59
60	60
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71	71	* Micro SIM card slot for NB-IoT SIM
72	72	* 8500mAh Battery for long term use
73	73
	72	+
	73	+
74	74	== 1.3  Specification ==
75	75
76	76
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99	99	(% style="color:#037691" %)**Power Consumption**
100	100
101	101	* STOP Mode: 10uA @ 3.3v
102		-* Max transmit power: 350mA@3.3v
	102	+* Max transmit power: [[350mA@3.3v>>mailto:350mA@3.3v]]
103	103
	104	+
	105	+
104	104	== ​1.4  Applications ==
105	105
106	106
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115	115	​
116	116
117	117
118		-
119	119	== 1.5  Pin Definitions ==
120	120
121	121
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122	122	[[image:1657328609906-564.png]]
123	123
124	124
125		-
126	126	= 2.  Use NDDS75 to communicate with IoT Server =
127	127
128		-
129	129	== 2.1  How it works ==
130	130
131	131
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148	148
149	149	)))
150	150
151		-
152	152	== 2.2 ​ Configure the NDDS75 ==
153	153
154		-
155	155	=== 2.2.1 Test Requirement ===
156	156
157	157
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171	171	[[image:1657328756309-230.png]]
172	172
173	173
174		-
175	175	=== 2.2.2 Insert SIM card ===
176	176
177	177
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187	187	[[image:1657328884227-504.png]]
188	188
189	189
190		-
191	191	=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
192	192
193	193
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229	229	)))
230	230
231	231
232		-
233	233	=== 2.2.4 Use CoAP protocol to uplink data ===
234	234
235	235
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272	272	[[image:1657330472797-498.png]]
273	273
274	274
275		-
276	276	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
277	277
278	278
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286	286	[[image:1657330533775-472.png]]
287	287
288	288
289		-
290	290	=== 2.2.6 Use MQTT protocol to uplink data ===
291	291
292	292
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309	309	)))
310	310
311	311
312		-
313	313	=== 2.2.7 Use TCP protocol to uplink data ===
314	314
315	315
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322	322	[[image:image-20220709093918-2.png]]
323	323
324	324
325		-
326	326	=== 2.2.8 Change Update Interval ===
327	327
328	328
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344	344	(% 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).**
345	345
346	346
347		-
348	348	== 2.3  Uplink Payload ==
349	349
350		-
351	351	=== 2.3.1  Before Firmware v1.3.2 ===
352	352
353	353
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367	367	[[image:1657331036973-987.png]]
368	368
369	369
370		-
371	371	The payload is **ASCII** string, representative same HEX:
372	372
373	373	(% style="background-color:yellow" %)**0x 724031556159 0064 0c6c 19 0292 00 **
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386	386
387	387	* (% style="color:#037691" %)**Interrupt:**(%%) 0x00 = 0
388	388
	376	+
	377	+
389	389	=== 2.3.2  Since firmware v1.3.2 ===
390	390
391	391
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428	428
429	429	* (% style="color:#037691" %)**8 sets of recorded data: Distance,Time stamp :**(%%) //**00396319ba3c**//,.......
430	430
431		-== 2.4  Payload Explanation and Sensor Interface ==
432	432
433	433
	422	+== 2.4  Payload Explanation and Sensor Interface ==
	423	+
434	434	=== 2.4.1  Device ID ===
435	435
436	436
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469	469	AT+DEUI=868411056754138
470	470
471	471
472		-
473	473	=== 2.4.2  Version Info ===
474	474
475	475
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482	482	)))
483	483
484	484
485		-
486	486	=== 2.4.3  Battery Info ===
487	487
488	488
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495	495	)))
496	496
497	497
498		-
499	499	=== 2.4.4  Signal Strength ===
500	500
501	501
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528	528	)))
529	529
530	530
531		-
532	532	=== 2.4.5  Distance ===
533	533
534	534
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548	548
549	549	)))
550	550
551		-(((
552		-
553		-)))
554		-
555	555	=== 2.4.6  Digital Interrupt ===
556	556
557	557
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586	586	)))
587	587
588	588
589		-
590	590	=== 2.4.7  ​+5V Output ===
591	591
592	592
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612	612	)))
613	613
614	614
615		-
616	616	== 2.5  Downlink Payload ==
617	617
618	618
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665	665	)))
666	666
667	667
668		-
669	669	== 2.6  Distance alarm function(Since firmware v1.3.2) ==
670	670
671	671
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685	685	**AT+ LDDSALARM=260,2000**  ~/~/ Alarm when distance lower than 260.
686	686
687	687
688		-
689	689	== 2.7  Set the number of data to be uploaded and the recording time ==
690	690
691	691
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699	699	[[image:image-20221009001114-1.png||height="687" width="955"]]
700	700
701	701
702		-
703	703	== 2.8  Read or Clear cached data ==
704	704
705	705
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711	711	[[image:image-20220908175333-2.png]]
712	712
713	713
714		-
715	715	== 2.9  ​LED Indicator ==
716	716
717	717
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728	728	)))
729	729
730	730
731		-
732	732	== 2.10  ​Firmware Change Log ==
733	733
734	734
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737	737	)))
738	738
739	739	(((
740		-
741		-)))
742		-
743		-(((
744	744	Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
745	745	)))
746	746
747	747
748		-
749	749	== 2.11 Battery & Power Consumption ==
750	750
751	751
752		-PS-LB-NA uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
	722	+NDDS75 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
753	753
754	754	[[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
755	755
	726	+
756	756	= 3. ​ Access NB-IoT Module =
757	757
758	758
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769	769	[[image:1657333200519-600.png]]
770	770
771	771
772		-
773	773	= 4.  Using the AT Commands =
774	774
775		-
776	776	== 4.1  Access AT Commands ==
777	777
778	778
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865	865	AT+PWORD  :  Serial Access Password
866	866
867	867
868		-
869	869	= ​5.  FAQ =
870	870
871		-
872	872	== 5.1 ​ How to Upgrade Firmware ==
873	873
874	874
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885	885	)))
886	886
887	887
888		-
889	889	= 6.  Trouble Shooting =
890	890
891		-
892	892	== 6.1  ​Connection problem when uploading firmware ==
893	893
894	894
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901	901
902	902	)))
903	903
904		-
905	905	== 6.2  AT Command input doesn't work ==
906	906
907	907
908	908	(((
909	909	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.
910		-
911		-
912	912	)))
913	913
914	914
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918	918	Part Number**:** (% style="color:#4f81bd" %)**NSDDS75**
919	919
920	920
921		-(% class="wikigeneratedid" %)
922		-(((
923		-
924		-)))
925		-
926	926	= 8.  Packing Info =
927	927
928	928	(((
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937	937	(((
938	938
939	939
940		-
941	941	(% style="color:#037691" %)**Dimension and weight**:
942	942
943	943	* Device Size: 13.0 x 5 x 4.5 cm
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949	949	(((
950	950
951	951
952		-
953	953
954	954	)))
955	955