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16	16	== 1.1 ​What is NDS01 NB-IoT Door Sensor ==
17	17
18	18
19		-The Dragino NDS01 is a **NB-IOT Door Sensor** for Internet of Things solution. It is used to **detect the open/close event for door and uplink the event** to IoT server via NB-IoT network.
	19	+(((
	20	+The Dragino NDS01 is a (% style="color:blue" %)**NB-IOT Door Sensor**(%%) for Internet of Things solution. It is used to (% style="color:blue" %)**detect the open/close event for door and uplink the event** (%%)to IoT server via NB-IoT network.
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20	20
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21	21	Besides open/close event, NDS01 also has an internal temperature and humidity sensor which can detect the temperature and humidity inside the sensor.
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22	22
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23	23	(% style="color:blue" %)**NarrowBand-Internet of Things (NB-IoT)**(%%) is a standards-based low power wide area (LPWA) technology developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage.
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24	24
25		-NDS01 is powered by **2 x AAA batteries** for long term use.
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	32	+NDS01 is powered by (% style="color:blue" %)**2 x AAA batteries**(%%) for long term use.
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26	26
	35	+(((
27	27	*The measured temperature is 2~~3 degree higher than the actually environment temperature out of NDS01.
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28	28
29	29
30	30	[[image:1668224602353-769.png]]
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68	68	* Micro SIM card slot for NB-IoT SIM
69	69	* 2 x AAA LR03 Batteries
70	70
71		-
72		-
73	73	== 1.4  ​Applications ==
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75	75
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78	78	* Smart Cities
79	79	* Smart Factory
80	80
81		-
82		-
83	83	= 2. Use NDS01 to communicate with IoT Server =
84	84
85	85	== 2.1 How it works ==
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226	226
227	227	(% style="color:#037691" %)**6. Alarm and Silencer**
228	228
	235	+(((
229	229	**Send: **AT+ALARM=<value>  ~/~/ 0~~1,0: mute 1: buzzer alarm (note that no data will be reported, only the buzzer and the red light are on, if it is in silent mode, only the red light is on)
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230	230
231	231	**Reply:** OK
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493	493
494	494	(% style="color:blue" %)**Connection:**
495	495
496		-*
497		-** (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
	504	+* (% style="background-color:yellow" %)**USB TTL GND <~-~-~-~-> GND**
498	498
499		-*
500		-** (% style="background-color:yellow" %)USB TTL TXD  <~-~-~-~-> UART_RXD
	506	+* (% style="background-color:yellow" %)**USB TTL TXD  <~-~-~-~-> UART_RXD**
501	501
502		-*
503		-** (% style="background-color:yellow" %)USB TTL RXD  <~-~-~-~-> UART_TXD
	508	+* (% style="background-color:yellow" %)**USB TTL RXD  <~-~-~-~-> UART_TXD**
504	504
505		-1. Double-click "FlashTool.exe" to start the program
	510	+(% style="color:blue" %)**1.  Double-click "FlashTool.exe" to start the program**
506	506
507		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
508	508
509		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
	513	+[[image:1668234935834-828.png]]
510	510
511		-1. Select burn serial port and firmware package to complete the upgrade
512	512
513		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]]
	516	+[[image:1668234950508-848.png]]
514	514
515		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
516	516
517		-1. Install the battery to the node, and the upgrade will start at this time
	519	+(% style="color:blue" %)**2.  Select burn serial port and firmware package to complete the upgrade**
518	518
519		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
	521	+[[image:1668234971869-640.png]]
520	520
521		-1. The following screenshot appears, indicating that the upgrade has been successful
522	522
523		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
	524	+[[image:1668234993821-197.png]]
524	524
525	525
	527	+(% style="color:blue" %)**3.  Install the battery to the node, and the upgrade will start at this time**
	528	+
	529	+[[image:1668235018478-767.png]]
	530	+
	531	+
	532	+(% style="color:blue" %)**4.  The following screenshot appears, indicating that the upgrade has been successful**
	533	+
	534	+[[image:1668235042540-676.png]]
	535	+
	536	+
	537	+
526	526	= 4. Order Info =
527	527
	540	+
528	528	Part Number: (% style="color:blue" %)**NDS01**
529	529
530	530