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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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72	72	* 8500mAh Battery for long term use
73	73
74	74
	73	+
75	75	== 1.3  Specification ==
76	76
77	77
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100	100	(% style="color:#037691" %)**Power Consumption**
101	101
102	102	* STOP Mode: 10uA @ 3.3v
103		-* Max transmit power: 350mA@3.3v
	102	+* Max transmit power: [[350mA@3.3v>>mailto:350mA@3.3v]]
104	104
105	105
	105	+
106	106	== ​1.4  Applications ==
107	107
108	108
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117	117	​
118	118
119	119
120		-
121	121	== 1.5  Pin Definitions ==
122	122
123	123
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124	124	[[image:1657328609906-564.png]]
125	125
126	126
127		-
128	128	= 2.  Use NDDS75 to communicate with IoT Server =
129	129
130		-
131	131	== 2.1  How it works ==
132	132
133	133
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150	150
151	151	)))
152	152
153		-
154	154	== 2.2 ​ Configure the NDDS75 ==
155	155
156		-
157	157	=== 2.2.1 Test Requirement ===
158	158
159	159
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173	173	[[image:1657328756309-230.png]]
174	174
175	175
176		-
177	177	=== 2.2.2 Insert SIM card ===
178	178
179	179
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189	189	[[image:1657328884227-504.png]]
190	190
191	191
192		-
193	193	=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
194	194
195	195
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231	231	)))
232	232
233	233
234		-
235	235	=== 2.2.4 Use CoAP protocol to uplink data ===
236	236
237	237
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274	274	[[image:1657330472797-498.png]]
275	275
276	276
277		-
278	278	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
279	279
280	280
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288	288	[[image:1657330533775-472.png]]
289	289
290	290
291		-
292	292	=== 2.2.6 Use MQTT protocol to uplink data ===
293	293
294	294
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311	311	)))
312	312
313	313
314		-
315	315	=== 2.2.7 Use TCP protocol to uplink data ===
316	316
317	317
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324	324	[[image:image-20220709093918-2.png]]
325	325
326	326
327		-
328	328	=== 2.2.8 Change Update Interval ===
329	329
330	330
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346	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).**
347	347
348	348
349		-
350	350	== 2.3  Uplink Payload ==
351	351
352		-
353	353	=== 2.3.1  Before Firmware v1.3.2 ===
354	354
355	355
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369	369	[[image:1657331036973-987.png]]
370	370
371	371
372		-
373	373	The payload is **ASCII** string, representative same HEX:
374	374
375	375	(% style="background-color:yellow" %)**0x 724031556159 0064 0c6c 19 0292 00 **
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389	389	* (% style="color:#037691" %)**Interrupt:**(%%) 0x00 = 0
390	390
391	391
	377	+
392	392	=== 2.3.2  Since firmware v1.3.2 ===
393	393
394	394
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431	431
432	432	* (% style="color:#037691" %)**8 sets of recorded data: Distance,Time stamp :**(%%) //**00396319ba3c**//,.......
433	433
434		-== 2.4  Payload Explanation and Sensor Interface ==
435	435
436	436
	422	+== 2.4  Payload Explanation and Sensor Interface ==
	423	+
437	437	=== 2.4.1  Device ID ===
438	438
439	439
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472	472	AT+DEUI=868411056754138
473	473
474	474
475		-
476	476	=== 2.4.2  Version Info ===
477	477
478	478
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485	485	)))
486	486
487	487
488		-
489	489	=== 2.4.3  Battery Info ===
490	490
491	491
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498	498	)))
499	499
500	500
501		-
502	502	=== 2.4.4  Signal Strength ===
503	503
504	504
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531	531	)))
532	532
533	533
534		-
535	535	=== 2.4.5  Distance ===
536	536
537	537
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551	551
552	552	)))
553	553
554		-(((
555		-
556		-)))
557		-
558	558	=== 2.4.6  Digital Interrupt ===
559	559
560	560
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589	589	)))
590	590
591	591
592		-
593	593	=== 2.4.7  ​+5V Output ===
594	594
595	595
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615	615	)))
616	616
617	617
618		-
619	619	== 2.5  Downlink Payload ==
620	620
621	621
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668	668	)))
669	669
670	670
671		-
672	672	== 2.6  Distance alarm function(Since firmware v1.3.2) ==
673	673
674	674
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688	688	**AT+ LDDSALARM=260,2000**  ~/~/ Alarm when distance lower than 260.
689	689
690	690
691		-
692	692	== 2.7  Set the number of data to be uploaded and the recording time ==
693	693
694	694
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702	702	[[image:image-20221009001114-1.png||height="687" width="955"]]
703	703
704	704
705		-
706	706	== 2.8  Read or Clear cached data ==
707	707
708	708
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714	714	[[image:image-20220908175333-2.png]]
715	715
716	716
717		-
718	718	== 2.9  ​LED Indicator ==
719	719
720	720
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731	731	)))
732	732
733	733
734		-
735	735	== 2.10  ​Firmware Change Log ==
736	736
737	737
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740	740	)))
741	741
742	742	(((
743		-
744		-)))
745		-
746		-(((
747	747	Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
748	748	)))
749	749
750	750
751		-
752	752	== 2.11 Battery & Power Consumption ==
753	753
754	754
755		-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.
756	756
757	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/]] .
758	758
	726	+
759	759	= 3. ​ Access NB-IoT Module =
760	760
761	761
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772	772	[[image:1657333200519-600.png]]
773	773
774	774
775		-
776	776	= 4.  Using the AT Commands =
777	777
778		-
779	779	== 4.1  Access AT Commands ==
780	780
781	781
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868	868	AT+PWORD  :  Serial Access Password
869	869
870	870
871		-
872	872	= ​5.  FAQ =
873	873
874		-
875	875	== 5.1 ​ How to Upgrade Firmware ==
876	876
877	877
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888	888	)))
889	889
890	890
891		-
892	892	= 6.  Trouble Shooting =
893	893
894		-
895	895	== 6.1  ​Connection problem when uploading firmware ==
896	896
897	897
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904	904
905	905	)))
906	906
907		-
908	908	== 6.2  AT Command input doesn't work ==
909	909
910	910
911	911	(((
912	912	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.
913		-
914		-
915	915	)))
916	916
917	917
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921	921	Part Number**:** (% style="color:#4f81bd" %)**NSDDS75**
922	922
923	923
924		-(% class="wikigeneratedid" %)
925		-(((
926		-
927		-)))
928		-
929	929	= 8.  Packing Info =
930	930
931	931	(((
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940	940	(((
941	941
942	942
943		-
944	944	(% style="color:#037691" %)**Dimension and weight**:
945	945
946	946	* Device Size: 13.0 x 5 x 4.5 cm
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952	952	(((
953	953
954	954
955		-
956	956
957	957	)))
958	958