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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	(((
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70	70	* Micro SIM card slot for NB-IoT SIM
71	71	* 8500mAh Battery for long term use
72	72
	74	+
	75	+
	76	+
73	73	== 1.3  Specification ==
74	74
75	75
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78	78	* Supply Voltage: 2.1v ~~ 3.6v
79	79	* Operating Temperature: -40 ~~ 85°C
80	80
	85	+
	86	+
81	81	(% style="color:#037691" %)**NB-IoT Spec:**
82	82
83	83	* - B1 @H-FDD: 2100MHz
...	...	@@ -87,6 +87,8 @@
87	87	* - B20 @H-FDD: 800MHz
88	88	* - B28 @H-FDD: 700MHz
89	89
	96	+
	97	+
90	90	(% style="color:#037691" %)**Battery:**
91	91
92	92	* Li/SOCI2 un-chargeable battery
...	...	@@ -95,13 +95,19 @@
95	95	* Max continuously current: 130mA
96	96	* Max boost current: 2A, 1 second
97	97
	106	+
	107	+
98	98	(% style="color:#037691" %)**Power Consumption**
99	99
100	100	* STOP Mode: 10uA @ 3.3v
101	101	* Max transmit power: 350mA@3.3v
102	102
	113	+
	114	+
	115	+
103	103	== ​1.4  Applications ==
104	104
	118	+
105	105	* Smart Buildings & Home Automation
106	106	* Logistics and Supply Chain Management
107	107	* Smart Metering
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113	113	​
114	114
115	115
	130	+
	131	+
116	116	== 1.5  Pin Definitions ==
117	117
118	118
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122	122
123	123	= 2.  Use NDDS75 to communicate with IoT Server =
124	124
	141	+
125	125	== 2.1  How it works ==
126	126
	144	+
127	127	(((
128	128	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.
129	129	)))
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149	149
150	150	=== 2.2.1 Test Requirement ===
151	151
	170	+
152	152	(((
153	153	To use NDDS75 in your city, make sure meet below requirements:
154	154	)))
155	155
156	156	* Your local operator has already distributed a NB-IoT Network there.
157		-* The local NB-IoT network used the band that NSE01 supports.
	176	+* The local NB-IoT network used the band that NDDS75 supports.
158	158	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
159	159
	179	+
	180	+
160	160	(((
161		-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
	182	+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.
162	162	)))
163	163
164	164
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168	168
169	169	=== 2.2.2 Insert SIM card ===
170	170
	192	+
171	171	(((
172	172	Insert the NB-IoT Card get from your provider.
173	173	)))
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183	183
184	184	=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
185	185
	208	+
186	186	(((
187	187	(((
188	188	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.
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191	191
192	192	[[image:image-20220709092052-2.png]]
193	193
	217	+
194	194	**Connection:**
195	195
196	196	(% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
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214	214
215	215	[[image:1657329814315-101.png]]
216	216
	241	+
217	217	(((
218		-(% 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/]]
	243	+(% 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]]**
219	219	)))
220	220
221	221
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222	222
223	223	=== 2.2.4 Use CoAP protocol to uplink data ===
224	224
225		-(% 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/]]
226	226
	251	+(% 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/]]**
227	227
	253	+
228	228	(((
229	229	**Use below commands:**
230	230	)))
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237	237	)))
238	238	* (((
239	239	(% style="color:blue" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/Set COAP resource path
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	267	+
	268	+
240	240	)))
241	241
242	242	(((
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246	246	[[image:1657330452568-615.png]]
247	247
248	248
	278	+
249	249	(((
250	250	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.
251	251	)))
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261	261	* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601   ** (%%) ~/~/ to set UDP server address and port
262	262	* (% style="color:blue" %)**AT+CFM=1       ** (%%) ~/~/ If the server does not respond, this command is unnecessary
263	263
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	295	+
264	264	[[image:1657330501006-241.png]]
265	265
266	266
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279	279	* (% style="color:blue" %)**AT+PUBTOPIC=NDDS75_PUB                 **(%%)~/~/Set the sending topic of MQTT
280	280	* (% style="color:blue" %)**AT+SUBTOPIC=NDDS75_SUB          **(%%) ~/~/Set the subscription topic of MQTT
281	281
	314	+
	315	+
282	282	[[image:1657249978444-674.png]]
283	283
284	284
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297	297	* (% style="color:blue" %)**AT+PRO=4   ** (%%) ~/~/ Set to use TCP protocol to uplink
298	298	* (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600   **(%%) ~/~/ to set TCP server address and port
299	299
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	335	+
300	300	[[image:image-20220709093918-1.png]]
301	301
302	302
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306	306
307	307	=== 2.2.8 Change Update Interval ===
308	308
	345	+
309	309	User can use below command to change the (% style="color:green" %)**uplink interval**.
310	310
311	311	* (% style="color:blue" %)**AT+TDC=600      ** (%%)~/~/ Set Update Interval to 600s
312	312
313		-(((
314		-(% style="color:red" %)**NOTE:**
315		-)))
316	316
	351	+
317	317	(((
318		-(% style="color:red" %)1. By default, the device will send an uplink message every 1 hour.
	353	+(% style="color:red" %)**NOTE: By default, the device will send an uplink message every 1 hour.**
319	319	)))
320	320
321	321
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322	322
323	323	== 2.3  Uplink Payload ==
324	324
	360	+
325	325	In this mode, uplink payload includes in total 14 bytes
326	326
327	327
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338	338
339	339	[[image:1657331036973-987.png]]
340	340
	377	+
341	341	(((
342	342	The payload is ASCII string, representative same HEX:
343	343	)))
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375	375
376	376	=== 2.4.1  Device ID ===
377	377
	415	+
378	378	(((
379	379	By default, the Device ID equal to the last 6 bytes of IMEI.
380	380	)))
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381	381
382	382	(((
383	383	User can use (% style="color:blue" %)**AT+DEUI**(%%) to set Device ID
	422	+
	423	+
384	384	)))
385	385
386	386	(((
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399	399
400	400	=== 2.4.2  Version Info ===
401	401
	442	+
402	402	(((
403	403	Specify the software version: 0x64=100, means firmware version 1.00.
404	404	)))
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411	411
412	412	=== 2.4.3  Battery Info ===
413	413
	455	+
414	414	(((
415	415	Ex1: 0x0B45 = 2885mV
416	416	)))
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423	423
424	424	=== 2.4.4  Signal Strength ===
425	425
	468	+
426	426	(((
427	427	NB-IoT Network signal Strength.
428	428	)))
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455	455
456	456	=== 2.4.5  Distance ===
457	457
	501	+
458	458	Get the distance. Flat object range 280mm - 7500mm.
459	459
460	460	(((
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477	477
478	478	=== 2.4.6  Digital Interrupt ===
479	479
	524	+
480	480	(((
481	481	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.
482	482	)))
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511	511
512	512	=== 2.4.7  ​+5V Output ===
513	513
	559	+
514	514	(((
515	515	NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling.
516	516	)))
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518	518
519	519	(((
520	520	The 5V output time can be controlled by AT Command.
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	568	+
521	521	)))
522	522
523	523	(((
524	524	(% style="color:blue" %)**AT+5VT=1000**
	573	+
	574	+
525	525	)))
526	526
527	527	(((
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532	532
533	533	== 2.5  Downlink Payload ==
534	534
	585	+
535	535	By default, NDDS75 prints the downlink payload to console port.
536	536
537	537	[[image:image-20220709100028-1.png]]
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602	602	== 2.7  ​Firmware Change Log ==
603	603
604	604
605		-Download URL & Firmware Change log
	656	+(((
	657	+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]]
	658	+)))
606	606
607	607	(((
608		-[[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/]]
	661	+
609	609	)))
610	610
	664	+(((
	665	+Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
	666	+)))
611	611
612		-Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
613	613
614	614
615		-
616	616	== 2.8  ​Battery Analysis ==
617	617
	672	+
618	618	=== 2.8.1  ​Battery Type ===
619	619
620	620
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642	642
643	643	=== 2.8.2  Power consumption Analyze ===
644	644
	700	+
645	645	(((
646	646	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.
647	647	)))
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680	680
681	681	=== 2.8.3  ​Battery Note ===
682	682
	739	+
683	683	(((
684	684	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.
685	685	)))
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688	688
689	689	=== 2.8.4  Replace the battery ===
690	690
	748	+
691	691	(((
692	692	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).
693	693	)))
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696	696
697	697	= 3. ​ Access NB-IoT Module =
698	698
	757	+
699	699	(((
700	700	Users can directly access the AT command set of the NB-IoT module.
701	701	)))
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702	702
703	703	(((
704	704	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/]]
	764	+
	765	+
705	705	)))
706	706
707	707	[[image:1657333200519-600.png]]
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710	710
711	711	= 4.  Using the AT Commands =
712	712
	774	+
713	713	== 4.1  Access AT Commands ==
714	714
715		-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/]]
716	716
	778	+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]]
717	717
	780	+
718	718	AT+<CMD>?  : Help on <CMD>
719	719
720	720	AT+<CMD>         : Run <CMD>
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788	788
789	789	= ​5.  FAQ =
790	790
	854	+
791	791	== 5.1 ​ How to Upgrade Firmware ==
792	792
793	793
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800	800	)))
801	801
802	802	(((
803		-(% style="color:red" %)Notice, NDDS75 and LDDS75 share the same mother board. They use the same connection and method to update.
	867	+(% style="color:red" %)**Notice, NDDS75 and LDDS75 share the same mother board. They use the same connection and method to update.**
804	804	)))
805	805
806	806
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807	807
808	808	= 6.  Trouble Shooting =
809	809
	874	+
810	810	== 6.1  ​Connection problem when uploading firmware ==
811	811
812	812
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822	822
823	823	== 6.2  AT Command input doesn't work ==
824	824
	890	+
825	825	(((
826	826	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.
827	827
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847	847
848	848	(% style="color:#037691" %)**Package Includes**:
849	849
850		-* NSE01 NB-IoT Distance Detect Sensor Node x 1
	916	+* NDDS75 NB-IoT Distance Detect Sensor Node x 1
851	851	* External antenna x 1
852	852	)))
853	853
...	...	@@ -854,9 +854,9 @@
854	854	(((
855	855
856	856
	923	+
857	857	(% style="color:#037691" %)**Dimension and weight**:
858	858
859		-
860	860	* Device Size: 13.0 x 5 x 4.5 cm
861	861	* Device Weight: 150g
862	862	* Package Size / pcs : 15 x 12x 5.5 cm
...	...	@@ -872,5 +872,8 @@
872	872
873	873	= 9.  Support =
874	874
	941	+
875	875	* 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.
876	876	* 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]]
	944	+
	945	+