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41	41
42	42	== 1.2 ​ Features ==
43	43
	44	+
44	44	* NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
45	45	* Monitor Temperature & Humidity via SHT31
46	46	* AT Commands to change parameters
...	...	@@ -53,8 +53,6 @@
53	53	* 8500mAh Battery for long term use
54	54
55	55
56		-
57		-
58	58	== 1.3  Specification ==
59	59
60	60
...	...	@@ -82,8 +82,6 @@
82	82	* Max boost current: 2A, 1 second
83	83
84	84
85		-
86		-
87	87	== ​1.4  Applications ==
88	88
89	89	* Smart Buildings & Home Automation
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132	132	1. Send an uplink packet
133	133
134	134
	132	+
135	135	= 2.  Use N95S31B to communicate with IoT Server =
136	136
137	137	== 2.1  How it works ==
...	...	@@ -378,6 +378,7 @@
378	378
379	379
380	380
	379	+
381	381	=== 2.3.1  Payload Analyze ===
382	382
383	383	N95S31B uplink payload includes in total 21 bytes
...	...	@@ -587,16 +587,51 @@
587	587
588	588
589	589
590		-== 2.5  ​Battery Analysis ==
	589	+== 2.6  ​LED Indicator ==
591	591
592		-=== 2.5.1  ​Battery Type ===
593	593
	592	+The NDDS75 has an internal LED which is to show the status of different state.
594	594
	594	+
	595	+* When power on, NDDS75 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe)
	596	+* Then the LED will be on for 1 second means device is boot normally.
	597	+* After NDDS75 join NB-IoT network. The LED will be ON for 3 seconds.
	598	+* For each uplink probe, LED will be on for 500ms.
	599	+
595	595	(((
596		-The N95S31B 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.
	601	+
597	597	)))
598	598
	604	+
	605	+
	606	+== 2.7  ​Firmware Change Log ==
	607	+
	608	+
599	599	(((
	610	+Download URL & Firmware Change log
	611	+)))
	612	+
	613	+(((
	614	+[[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/]]
	615	+)))
	616	+
	617	+
	618	+(((
	619	+Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
	620	+)))
	621	+
	622	+
	623	+
	624	+== 2.8  ​Battery Analysis ==
	625	+
	626	+=== 2.8.1  ​Battery Type ===
	627	+
	628	+
	629	+(((
	630	+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.
	631	+)))
	632	+
	633	+(((
600	600	The battery is designed to last for several years depends on the actually use environment and update interval.
601	601	)))
602	602
...	...	@@ -614,35 +614,56 @@
614	614
615	615
616	616
617		-=== 2.5.2  Power consumption Analyze ===
	651	+=== 2.8.2  Power consumption Analyze ===
618	618
619	619	(((
620		-The file **DRAGINO_N95S31B-Power-Analyzer.pdf** from [[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/]] describes a detail measurement to analyze the power consumption in different case. User can use it for design guideline for their project.
	654	+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.
621	621	)))
622	622
	657	+
623	623	(((
624		-
	659	+Instruction to use as below:
625	625	)))
626	626
	662	+(((
	663	+(% 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/]]
	664	+)))
627	627
628		-=== 2.5.3  ​Battery Note ===
629	629
630	630	(((
631		-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 uplink data, then the battery life may be decreased.
	668	+(% style="color:blue" %)**Step 2: **(%%) Open it and choose
632	632	)))
633	633
	671	+* (((
	672	+Product Model
	673	+)))
	674	+* (((
	675	+Uplink Interval
	676	+)))
	677	+* (((
	678	+Working Mode
	679	+)))
634	634
	681	+(((
	682	+And the Life expectation in difference case will be shown on the right.
	683	+)))
635	635
636		-=== 2.5.4  Replace the battery ===
	685	+[[image:image-20220709110451-3.png]]
637	637
638	638
	688	+
	689	+=== 2.8.3  ​Battery Note ===
	690	+
639	639	(((
640		-You can change the battery in the N95S31B.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won't be voltage drop between battery and main board.
	692	+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.
641	641	)))
642	642
643	643
	696	+
	697	+=== 2.8.4  Replace the battery ===
	698	+
644	644	(((
645		-The default battery pack of N95S31B 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).
	700	+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).
646	646	)))
647	647
648	648
...	...	@@ -665,7 +665,7 @@
665	665
666	666	== 4.1  Access AT Commands ==
667	667
668		-See NBSN95 AT Command in this link for detail:  [[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN95/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN95/]]
	723	+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/]]
669	669
670	670
671	671	AT+<CMD>?  : Help on <CMD>