Wiki source code of N95S31B NB-IoT Temperature & Humidity Sensor User Manual

Version 119.3 by Xiaoling on 2022/08/22 15:05

version	line-number	content
74.2	1	(% style="text-align:center" %)
99.2	2	[[image:1657348034241-728.png\|\|height="470" width="470"]]
1.1	3
	4
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35.25	6
	7
99.2	8
	9
35.4	10	Table of Contents:
1.1	11
115.14	12	{{toc/}}
1.1	13
	14
	15
	16
31.17	17
44.2	18	= 1. Introduction =
1.1	19
119.2	20
99.2	21	== 1.1 What is N95S31B NB-IoT Sensor Node ==
1.1	22
12.2	23	(((
35.4	24
	25
115.25	26	(((
99.2	27	The Dragino N95S31B is a (% style="color:blue" %)NB-IoT Temperature and Humidity Sensor(%%) for Internet of Things solution. It is used to measure the (% style="color:blue" %)surrounding environment temperature and relative air humidity precisely(%%), and then upload to IoT server via NB-IoT network*.
115.25	28	)))
97.13	29
115.25	30	(((
99.2	31	The temperature & humidity sensor used in N95S31B is SHT31, which is fully calibrated, linearized, and temperature compensated digital output from Sensirion, it provides a strong reliability and long-term stability. The SHT31 is fixed in a (% style="color:blue" %)waterproof anti-condensation casing (%%)for long term use.
115.25	32	)))
97.13	33
115.25	34	(((
99.2	35	N95S31B supports different uplink methods include (% style="color:blue" %)TCP, MQTT, UDP and CoAP(%%) for different application requirement.
115.25	36	)))
97.13	37
115.25	38	(((
99.2	39	N95S31B is powered by(% style="color:blue" %)8500mAh Li-SOCI2 battery(%%), It is designed for long term use up to several years. (Real-world battery life depends on the use environment, update period. Please check related Power Analyze report).
115.25	40	)))
97.13	41
115.25	42	(((
	43
	44	)))
97.13	45
115.25	46	(((
99.2	47	~* make sure you have NB-IoT coverage locally.
115.25	48	)))
4.2	49
42.2	50
12.2	51	)))
4.2	52
99.2	53	[[image:1657348284168-431.png]]
4.2	54
	55
	56
65.3	57	== 1.2 Features ==
13.3	58
119.2	59
44.2	60	* NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
100.2	61	* Monitor Temperature & Humidity via SHT31
4.2	62	* AT Commands to change parameters
	63	* Uplink on periodically
	64	* Downlink to change configure
	65	* IP66 Waterproof Enclosure
100.2	66	* Ultra-Low Power consumption
	67	* AT Commands to change parameters
44.2	68	* Micro SIM card slot for NB-IoT SIM
	69	* 8500mAh Battery for long term use
4.2	70
115.27	71
118.2	72
119.2	73
44.2	74	== 1.3 Specification ==
	75
	76
	77	(% style="color:#037691" %)Common DC Characteristics:
	78
	79	* Supply Voltage: 2.1v ~~ 3.6v
	80	* Operating Temperature: -40 ~~ 85°C
	81
119.2	82
	83
44.2	84	(% style="color:#037691" %)NB-IoT Spec:
	85
	86	* - B1 @H-FDD: 2100MHz
	87	* - B3 @H-FDD: 1800MHz
	88	* - B8 @H-FDD: 900MHz
	89	* - B5 @H-FDD: 850MHz
	90	* - B20 @H-FDD: 800MHz
	91	* - B28 @H-FDD: 700MHz
	92
119.2	93
	94
75.3	95	(% style="color:#037691" %)Battery:
4.2	96
75.3	97	* Li/SOCI2 un-chargeable battery
	98	* Capacity: 8500mAh
	99	* Self Discharge: <1% / Year @ 25°C
	100	* Max continuously current: 130mA
	101	* Max boost current: 2A, 1 second
14.2	102
115.28	103
118.2	104
119.2	105
44.2	106	== 1.4 Applications ==
4.2	107
119.2	108
75.4	109	* Smart Buildings & Home Automation
	110	* Logistics and Supply Chain Management
	111	* Smart Metering
4.2	112	* Smart Agriculture
75.4	113	* Smart Cities
	114	* Smart Factory
4.2	115
15.6	116	(% class="wikigeneratedid" id="H200B1.5FirmwareChangelog" %)
	117
4.2	118
75.4	119
119.2	120
117.2	121	== 1.5 Pin Definitions & Switch ==
15.6	122
119.2	123
100.2	124	N95S31B use the mother board from NBSN95 which as below.
15.6	125
119.2	126
100.2	127	[[image:image-20220709144723-1.png]]
4.2	128
14.3	129
119.2	130
100.2	131	=== 1.5.1 Jumper JP2 ===
14.3	132
119.2	133
100.2	134	Power on Device when put this jumper.
14.3	135
100.2	136
	137
	138	=== 1.5.2 BOOT MODE / SW1 ===
	139
119.2	140
115.29	141	(((
100.2	142	1) ISP: upgrade mode, device won't have any signal in this mode. but ready for upgrade firmware. LED won't work. Firmware won't run.
115.29	143	)))
100.2	144
115.29	145	(((
100.2	146	2) Flash: work mode, device starts to work and send out console output for further debug
115.29	147	)))
100.2	148
	149
	150
	151	=== 1.5.3 Reset Button ===
	152
119.2	153
100.2	154	Press to reboot the device.
	155
	156
	157
	158	=== 1.5.4 LED ===
	159
119.2	160
100.2	161	It will flash:
	162
	163	1. When boot the device in flash mode
	164	1. Send an uplink packet
	165
115.30	166
118.9	167
119.2	168
100.2	169	= 2. Use N95S31B to communicate with IoT Server =
	170
119.2	171
45.2	172	== 2.1 How it works ==
14.3	173
100.3	174
15.3	175	(((
100.3	176	The N95S31B is equipped with a NB-IoT module, the pre-loaded firmware in N95S31B 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 N95S31B.
15.3	177	)))
4.2	178
45.2	179
15.3	180	(((
100.3	181	The diagram below shows the working flow in default firmware of N95S31B:
15.3	182	)))
4.2	183
77.2	184	(((
	185
	186	)))
4.2	187
118.2	188	[[image:1657520100595-569.png]]
77.2	189
45.2	190	(((
	191
	192	)))
4.2	193
45.2	194
102.2	195	== 2.2 Configure the N95S31B ==
4.2	196
48.2	197
102.2	198	=== 2.2.1 Power On N95S31B ===
	199
	200
	201	[[image:image-20220709150546-2.png]]
	202
102.3	203
119.2	204
45.4	205	=== 2.2.1 Test Requirement ===
4.2	206
	207
115.31	208	(((
102.3	209	To use N95S31B in your city, make sure meet below requirements:
115.31	210	)))
102.3	211
115.31	212	* (((
	213	Your local operator has already distributed a NB-IoT Network there.
	214	)))
	215	* (((
	216	The local NB-IoT network used the band that N95S31B supports.
	217	)))
	218	* (((
	219	Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
	220	)))
4.2	221
115.31	222	(((
102.3	223	Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.
115.31	224	)))
102.3	225
115.31	226	(((
102.3	227	N95S31B supports different communication protocol such as :
115.31	228	)))
102.3	229
48.2	230	(((
115.31	231	* (((
	232	CoAP ((% style="color:red" %)120.24.4.116:5683(%%))
	233	)))
	234	* (((
	235	raw UDP ((% style="color:red" %)120.24.4.116:5601(%%))
	236	)))
	237	* (((
	238	MQTT ((% style="color:red" %)120.24.4.116:1883(%%))
	239	)))
	240	* (((
	241	TCP ((% style="color:red" %)120.24.4.116:5600(%%))
	242	)))
102.3	243
115.31	244	(((
102.3	245	We will show how to use with each protocol. The IP addresses above are our test server. User need to change to point their corresponding server.
115.31	246	)))
102.3	247
	248
	249	)))
	250
103.2	251	[[image:1657350625843-586.png]]
4.2	252
	253
	254
104.2	255	=== 2.2.3 Insert SIM card ===
4.2	256
119.2	257
65.11	258	(((
45.4	259	Insert the NB-IoT Card get from your provider.
65.11	260	)))
4.2	261
65.11	262	(((
45.4	263	User need to take out the NB-IoT module and insert the SIM card like below:
65.11	264	)))
4.2	265
	266
104.2	267	[[image:1657351240556-536.png]]
4.2	268
	269
48.2	270
107.2	271	=== 2.2.4 Connect USB – TTL to N95S31B to configure it ===
4.2	272
119.2	273
48.2	274	(((
	275	(((
105.2	276	User need to configure N95S31B via serial port to set the (% style="color:blue" %)Server Address / Uplink Topic (%%)to define where and how-to uplink packets. N95S31B support AT Commands, user can use a USB to TTL adapter to connect to N95S31B and use AT Commands to configure it, as below.
119.2	277
	278
48.2	279	)))
	280	)))
19.2	281
105.2	282	[[image:1657351312545-300.png]]
4.2	283
119.2	284
48.2	285	Connection:
4.2	286
45.6	287	(% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
4.2	288
45.6	289	(% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD
4.2	290
45.6	291	(% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD
4.2	292
	293
45.4	294	In the PC, use below serial tool settings:
	295
57.4	296	* Baud: (% style="color:green" %)9600
48.2	297	* Data bits: (% style="color:green" %)8(%%)
	298	* Stop bits: (% style="color:green" %)1
57.4	299	* Parity: (% style="color:green" %)None
48.2	300	* Flow Control: (% style="color:green" %)None
45.4	301
48.2	302	(((
105.2	303	Make sure the switch is in FLASH position, then power on device by connecting the jumper on N95S31B. N95S31B will output system info once power on as below, we can enter the (% style="color:green" %)password: 12345678(%%) to access AT Command input.
48.2	304	)))
45.4	305
81.2	306	[[image:1657329814315-101.png]]
45.4	307
119.2	308
65.12	309	(((
119.2	310	(% style="color:red" %)Note: the valid AT Commands can be found at: (%%)[[https:~~/~~/www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i~~-~~-AyZcQkoua?dl=0>>https://www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i--AyZcQkoua?dl=0]]
65.12	311	)))
45.4	312
	313
	314
107.2	315	=== 2.2.5 Use CoAP protocol to uplink data ===
45.4	316
	317
119.2	318	(% 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/]]
45.4	319
119.2	320
97.9	321	(((
50.2	322	Use below commands:
97.9	323	)))
45.4	324
97.9	325	* (((
	326	(% style="color:blue" %)AT+PRO=1 (%%) ~/~/ Set to use CoAP protocol to uplink
	327	)))
	328	* (((
	329	(% style="color:blue" %)AT+SERVADDR=120.24.4.116,5683 (%%)~/~/ to set CoAP server address and port
	330	)))
	331	* (((
	332	(% style="color:blue" %)AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" (%%) ~/~/Set COAP resource path
	333	)))
45.4	334
97.9	335	(((
107.2	336
	337
45.4	338	For parameter description, please refer to AT command set
97.9	339	)))
45.4	340
107.2	341	[[image:1657352146020-183.png]]
45.4	342
	343
97.10	344	(((
86.2	345	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.
97.10	346	)))
45.4	347
107.2	348	[[image:1657352185396-303.png]]
45.4	349
	350
50.2	351
107.2	352	=== 2.2.6 Use UDP protocol to uplink data(Default protocol) ===
45.4	353
	354
97.5	355	* (% style="color:blue" %)AT+PRO=2 (%%) ~/~/ Set to use UDP protocol to uplink
48.2	356	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5601 (%%) ~/~/ to set UDP server address and port
97.5	357	* (% style="color:blue" %)AT+CFM=1 (%%) ~/~/ If the server does not respond, this command is unnecessary
45.4	358
119.3	359
	360
111.2	361	[[image:1657352391268-297.png]]
45.4	362
	363
111.2	364	[[image:1657352403317-397.png]]
45.4	365
52.3	366
86.2	367
111.2	368	=== 2.2.7 Use MQTT protocol to uplink data ===
45.4	369
119.3	370
113.2	371	N95S31B supports only plain MQTT now it doesn't support TLS and other related encryption.
45.4	372
97.11	373	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/Set to use MQTT protocol to uplink
	374	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/Set MQTT server address and port
	375	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%)~/~/Set up the CLIENT of MQTT
97.13	376	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/Set the username of MQTT
	377	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/Set the password of MQTT
114.2	378	* (% style="color:blue" %)AT+PUBTOPIC=f9527 (%%)~/~/Set the sending topic of MQTT
	379	* (% style="color:blue" %)AT+SUBTOPIC=Ns9527 (%%) ~/~/Set the subscription topic of MQTT
45.4	380
119.3	381
	382
111.2	383	[[image:1657352634421-276.png]]
45.4	384
54.2	385
111.2	386	[[image:1657352645687-385.png]]
54.2	387
119.3	388
111.2	389	(((
	390	To save battery life, N95S31B will establish a subscription before each uplink and close the subscription 3 seconds after uplink successful. Any downlink commands from server will only arrive during the subscription period.
	391	)))
45.4	392
111.2	393
54.3	394	(((
111.2	395	MQTT protocol has a much high-power consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.
54.3	396	)))
45.4	397
	398
54.3	399
113.2	400	=== 2.2.8 Use TCP protocol to uplink data ===
45.4	401
119.3	402
113.2	403	This feature is supported since firmware version v110
45.4	404
56.2	405	* (% style="color:blue" %)AT+PRO=4 (%%) ~/~/ Set to use TCP protocol to uplink
48.2	406	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5600 (%%) ~/~/ to set TCP server address and port
45.4	407
119.3	408
	409
113.2	410	[[image:1657352898400-901.png]]
45.4	411
	412
113.2	413	[[image:1657352914475-252.png]]
45.4	414
57.6	415
89.2	416
113.2	417	=== 2.2.9 Change Update Interval ===
45.4	418
119.3	419
48.2	420	User can use below command to change the (% style="color:green" %)uplink interval.
45.4	421
56.3	422	* (% style="color:blue" %)AT+TDC=600 (%%)~/~/ Set Update Interval to 600s
45.4	423
56.3	424	(((
113.2	425
56.3	426	)))
45.4	427
	428
	429
57.2	430	== 2.3 Uplink Payload ==
4.2	431
32.9	432
115.32	433	(((
118.7	434	N95S31B has different working mode for the connections of different type of sensors. This section describes these modes. User can use the AT Command (% style="color:blue" %)AT+MOD(%%) to set NBSN95 to different working modes.
115.32	435	)))
90.2	436
114.2	437
115.32	438	(((
114.2	439	For example:
115.32	440	)))
114.2	441
115.32	442	(((
118.7	443	(% style="color:blue" %)AT+CFGMOD=2 (%%)~/~/will set the N95S31B to work in MOD=2 distance mode which target to measure distance via Ultrasonic Sensor.
115.32	444	)))
114.2	445
	446
115.32	447	(((
114.2	448	The uplink payloads are composed in ASCII String. For example:
115.32	449	)))
114.2	450
115.32	451	(((
114.2	452	0a cd 00 ed 0a cc 00 00 ef 02 d2 1d (total 24 ASCII Chars) . Representative the actually payload:
115.32	453	)))
114.2	454
115.32	455	(((
114.2	456	0x 0a cd 00 ed 0a cc 00 00 ef 02 d2 1d Total 12 bytes
115.32	457	)))
114.2	458
	459
115.32	460	(((
114.2	461	(% style="color:red" %)NOTE:
115.32	462	)))
114.2	463
	464	(% style="color:red" %)
115.32	465	1. (((
119.3	466	All modes share the same Payload Explanation from [[HERE>>\|\|anchor="H2.3A0UplinkPayload"]].
115.32	467	)))
	468	1. (((
119.3	469	By default, the device will send an uplink message every 1 hour.
118.4	470
	471
	472
	473
115.32	474	)))
114.2	475
	476	=== 2.3.1 Payload Analyze ===
	477
119.3	478
114.2	479	N95S31B uplink payload includes in total 21 bytes
	480
	481
115.17	482	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:520px" %)
115.19	483	\|=(% style="width: 60px;" %)(((
57.2	484	Size(bytes)
115.23	485	)))\|=(% style="width: 50px;" %)6\|=(% style="width: 25px;" %)2\|=(% style="width: 25px;" %)2\|=(% style="width: 70px;" %)1\|=(% style="width: 55px;" %)1\|=(% style="width: 115px;" %)5\|=(% style="width: 60px;" %)2\|=(% style="width: 60px;" %)2
115.15	486	\|(% style="width:97px" %)Value\|(% style="width:83px" %)[[Device ID>>\|\|anchor="H2.3.2A0DeviceID"]]\|(% style="width:41px" %)[[Ver>>\|\|anchor="H2.3.3A0VersionInfo"]]\|(% style="width:46px" %)[[BAT>>\|\|anchor="H2.3.4A0BatteryInfo"]]\|(% style="width:123px" %)[[Signal Strength>>\|\|anchor="H2.3.5A0SignalStrength"]]\|(% style="width:123px" %)MOD 0X01\|(% style="width:99px" %)(((
115.21	487	(((
114.2	488	Reserve/ Same as NBSN95 CFGMOD=1
115.21	489	)))
57.2	490
115.21	491	(((
114.2	492	No function here.
115.21	493	)))
114.2	494	)))\|(% style="width:77px" %)(((
115.21	495	(((
115.15	496	[[Temperature >>\|\|anchor="H2.3.6A0Temperature26Humidity"]]
115.21	497	)))
114.2	498
115.21	499	(((
114.2	500	By SHT31
115.21	501	)))
114.2	502	)))\|(% style="width:80px" %)(((
115.21	503	(((
115.15	504	[[Humidity>>\|\|anchor="H2.3.6A0Temperature26Humidity"]]
115.21	505	)))
114.2	506
115.21	507	(((
114.2	508	By SHT31
	509	)))
115.21	510	)))
114.2	511
65.13	512	(((
119.3	513
	514
114.2	515	(((
	516	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NB sensor uplink data.
65.13	517	)))
114.2	518	)))
57.2	519
	520
114.2	521	[[image:1657354294009-643.png]]
57.2	522
	523
115.2	524	The payload is ASCII string, representative same HEX: 0x724031607457006e0ccd1b0100dc000ccc00e10186 where:
57.2	525
115.2	526	* Device ID: 0x724031607457 = 724031607457
	527	* Version: 0x006e=110=1.1.0
57.2	528
115.2	529	* BAT: 0x0ccd = 3277 mV = 3.277V
	530	* Signal: 0x1b = 27
	531	* Model: 0x01 = 1
	532	* 0x00dc000ccc= reserve, ignore in N95S31B
	533	* Temperature by SHT31: 0x00e1 = 225 = 22.5 °C
	534	* Humidity by SHT31: 0x0186 = 390 = 39.0 %rh
	535
	536	(((
	537
90.2	538	)))
95.5	539
115.2	540	(((
95.5	541
90.2	542	)))
57.2	543
4.2	544
115.2	545	=== 2.3.2 Device ID ===
57.7	546
119.3	547
65.13	548	(((
57.3	549	By default, the Device ID equal to the last 6 bytes of IMEI.
65.13	550	)))
4.2	551
65.13	552	(((
57.4	553	User can use (% style="color:blue" %)AT+DEUI(%%) to set Device ID
65.13	554	)))
4.2	555
65.13	556	(((
57.3	557	Example:
65.13	558	)))
4.2	559
65.13	560	(((
57.3	561	AT+DEUI=A84041F15612
65.13	562	)))
4.2	563
65.13	564	(((
91.1	565	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
65.13	566	)))
22.2	567
4.2	568
	569
115.2	570	=== 2.3.3 Version Info ===
57.5	571
119.3	572
116.2	573	(((
115.2	574	These bytes include the hardware and software version.
116.2	575	)))
115.2	576
116.2	577	(((
115.2	578	Higher byte: Specify hardware version: always 0x00 for N95S31B
116.2	579	)))
115.2	580
116.2	581	(((
115.2	582	Lower byte: Specify the software version: 0x6E=110, means firmware version 110
116.2	583	)))
115.2	584
116.2	585	(((
	586
	587	)))
115.2	588
116.2	589	(((
115.2	590	For example: 0x00 6E: this device is N95S31B with firmware version 110.
116.2	591	)))
115.2	592
65.13	593	(((
115.2	594
65.13	595	)))
4.2	596
	597
115.2	598	=== 2.3.4 Battery Info ===
57.3	599
119.3	600
32.10	601	(((
4.2	602	Ex1: 0x0B45 = 2885mV
32.10	603	)))
4.2	604
32.10	605	(((
4.2	606	Ex2: 0x0B49 = 2889mV
32.10	607	)))
4.2	608
	609
	610
115.2	611	=== 2.3.5 Signal Strength ===
4.2	612
119.3	613
65.13	614	(((
57.6	615	NB-IoT Network signal Strength.
65.13	616	)))
57.6	617
65.13	618	(((
57.6	619	Ex1: 0x1d = 29
65.13	620	)))
57.6	621
65.13	622	(((
57.6	623	(% style="color:blue" %)0(%%) -113dBm or less
65.13	624	)))
57.6	625
65.13	626	(((
57.6	627	(% style="color:blue" %)1(%%) -111dBm
65.13	628	)))
57.6	629
65.13	630	(((
57.6	631	(% style="color:blue" %)2...30(%%) -109dBm... -53dBm
65.13	632	)))
57.6	633
65.13	634	(((
57.6	635	(% style="color:blue" %)31 (%%) -51dBm or greater
65.13	636	)))
57.6	637
65.13	638	(((
57.6	639	(% style="color:blue" %)99 (%%) Not known or not detectable
65.13	640	)))
57.6	641
	642
	643
115.2	644	=== 2.3.6 Temperature & Humidity ===
57.6	645
119.3	646
115.2	647	The device will be able to get the SHT31 temperature and humidity data now and upload to IoT Server.
4.2	648
115.2	649	[[image:image-20220709161741-3.png]]
4.2	650
	651
115.2	652	Convert the read byte to decimal and divide it by ten.
4.2	653
23.2	654
115.2	655	Example:
23.2	656
115.2	657	Temperature: Read:00ec (H) = 236(D) Value: 236 /10=23.6℃
4.2	658
115.2	659	Humidity: Read:0295(H)=661(D) Value: 661 / 10=66.1, So 66.1%
4.2	660
	661
	662
115.14	663	== 2.4 Downlink Payload ==
4.2	664
119.3	665
118.5	666	By default, N95S31B prints the downlink payload to console port.
4.2	667
92.2	668	[[image:image-20220709100028-1.png]]
4.2	669
	670
32.14	671	(((
40.4	672	(% style="color:blue" %)Examples:
32.14	673	)))
4.2	674
32.14	675	(((
	676
	677	)))
4.2	678
32.14	679	* (((
40.4	680	(% style="color:blue" %)Set TDC
32.14	681	)))
4.2	682
32.14	683	(((
60.2	684	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
32.14	685	)))
4.2	686
32.14	687	(((
4.2	688	Payload: 01 00 00 1E TDC=30S
32.14	689	)))
4.2	690
32.14	691	(((
4.2	692	Payload: 01 00 00 3C TDC=60S
32.14	693	)))
4.2	694
32.14	695	(((
	696
	697	)))
4.2	698
32.14	699	* (((
40.4	700	(% style="color:blue" %)Reset
32.14	701	)))
4.2	702
32.14	703	(((
118.5	704	If payload = 0x04FF, it will reset the N95S31B
32.14	705	)))
4.2	706
	707
60.2	708	* (% style="color:blue" %)INTMOD
4.2	709
65.17	710	(((
60.2	711	Downlink Payload: 06000003, Set AT+INTMOD=3
65.17	712	)))
4.2	713
	714
26.2	715
115.5	716	== 2.5 Battery Analysis ==
4.2	717
119.3	718
115.5	719	=== 2.5.1 Battery Type ===
4.2	720
	721
65.18	722	(((
115.7	723	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.
65.18	724	)))
4.2	725
65.18	726	(((
62.3	727	The battery is designed to last for several years depends on the actually use environment and update interval.
65.18	728	)))
4.2	729
65.18	730	(((
60.2	731	The battery related documents as below:
65.18	732	)))
4.2	733
60.2	734	* [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
65.7	735	* [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
60.2	736	* [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
4.2	737
29.2	738	(((
95.2	739	[[image:image-20220709101450-2.png]]
29.2	740	)))
4.2	741
	742
35.18	743
115.6	744	=== 2.5.2 Power consumption Analyze ===
4.2	745
119.3	746
62.3	747	(((
119.3	748	The file DRAGINO_N95S31B-Power-Analyzer.pdf from [[https:~~/~~/www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i~~-~~-AyZcQkoua?dl=0>>https://www.dropbox.com/sh/mlpd6l05bogvaf6/AABwAJLMttqG7i--AyZcQkoua?dl=0]] describes a detail measurement to analyze the power consumption in different case. User can use it for design guideline for their project.
62.3	749	)))
4.2	750
62.3	751	(((
115.7	752
62.3	753	)))
4.2	754
	755
115.6	756	=== 2.5.3 Battery Note ===
4.2	757
119.3	758
31.6	759	(((
115.7	760	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.
31.3	761	)))
4.2	762
	763
	764
115.6	765	=== 2.5.4 Replace the battery ===
31.2	766
115.8	767
62.2	768	(((
115.8	769	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.
62.2	770	)))
4.2	771
	772
115.8	773	(((
	774	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).
	775	)))
4.2	776
115.8	777
	778
63.2	779	= 3. Access NB-IoT Module =
4.2	780
119.3	781
63.2	782	(((
	783	Users can directly access the AT command set of the NB-IoT module.
	784	)))
	785
	786	(((
64.2	787	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/]]
119.3	788
	789
63.2	790	)))
	791
95.2	792	[[image:1657333200519-600.png]]
63.2	793
	794
	795
64.2	796	= 4. Using the AT Commands =
63.2	797
119.3	798
64.2	799	== 4.1 Access AT Commands ==
9.2	800
11.4	801
119.3	802	See NBSN95 AT Command in this link for detail: [[https:~~/~~/www.dropbox.com/sh/jao1xt9kw5r3yq4/AAAMpJkZzExF2JLbRWxGoQ9Na?dl=0>>https://www.dropbox.com/sh/jao1xt9kw5r3yq4/AAAMpJkZzExF2JLbRWxGoQ9Na?dl=0]]
4.2	803
119.3	804
64.2	805	AT+<CMD>? : Help on <CMD>
4.2	806
64.2	807	AT+<CMD> : Run <CMD>
4.2	808
64.2	809	AT+<CMD>=<value> : Set the value
4.2	810
64.2	811	AT+<CMD>=? : Get the value
4.2	812
	813
11.6	814	(% style="color:#037691" %)General Commands(%%)
4.2	815
64.2	816	AT : Attention
4.2	817
64.2	818	AT? : Short Help
4.2	819
64.2	820	ATZ : MCU Reset
4.2	821
64.2	822	AT+TDC : Application Data Transmission Interval
4.2	823
64.2	824	AT+CFG : Print all configurations
4.2	825
64.2	826	AT+CFGMOD : Working mode selection
4.2	827
64.2	828	AT+INTMOD : Set the trigger interrupt mode
4.2	829
64.2	830	AT+5VT : Set extend the time of 5V power
4.2	831
64.2	832	AT+PRO : Choose agreement
4.2	833
64.2	834	AT+WEIGRE : Get weight or set weight to 0
4.2	835
64.2	836	AT+WEIGAP : Get or Set the GapValue of weight
4.2	837
64.2	838	AT+RXDL : Extend the sending and receiving time
4.2	839
64.2	840	AT+CNTFAC : Get or set counting parameters
4.2	841
64.2	842	AT+SERVADDR : Server Address
4.2	843
	844
64.2	845	(% style="color:#037691" %)COAP Management
4.2	846
64.2	847	AT+URI : Resource parameters
4.2	848
	849
64.2	850	(% style="color:#037691" %)UDP Management
4.2	851
64.2	852	AT+CFM : Upload confirmation mode (only valid for UDP)
4.2	853
	854
64.2	855	(% style="color:#037691" %)MQTT Management
4.2	856
64.2	857	AT+CLIENT : Get or Set MQTT client
4.2	858
64.2	859	AT+UNAME : Get or Set MQTT Username
4.2	860
64.2	861	AT+PWD : Get or Set MQTT password
4.2	862
64.2	863	AT+PUBTOPIC : Get or Set MQTT publish topic
4.2	864
64.2	865	AT+SUBTOPIC : Get or Set MQTT subscription topic
4.2	866
	867
64.2	868	(% style="color:#037691" %)Information
4.2	869
64.2	870	AT+FDR : Factory Data Reset
4.2	871
64.2	872	AT+PWORD : Serial Access Password
4.2	873
	874
	875
64.4	876	= 5. FAQ =
4.2	877
119.3	878
64.4	879	== 5.1 How to Upgrade Firmware ==
6.3	880
4.2	881
31.35	882	(((
64.4	883	User can upgrade the firmware for 1) bug fix, 2) new feature release.
31.35	884	)))
4.2	885
31.35	886	(((
64.4	887	Please see this link for how to upgrade: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList>>http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList]]
31.35	888	)))
4.2	889
31.35	890	(((
115.10	891
	892
115.34	893	(((
119.3	894	(% style="color:red" %)Notice, N95S31B and LSN50v2 share the same mother board. They use the same connection and method to update.
31.35	895	)))
115.34	896	)))
4.2	897
	898
	899
64.5	900	= 6. Trouble Shooting =
4.2	901
119.3	902
64.5	903	== 6.1 Connection problem when uploading firmware ==
4.9	904
4.2	905
65.20	906	(((
	907	Please see: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting]]
	908	)))
	909
64.5	910	(% class="wikigeneratedid" %)
31.29	911	(((
65.20	912
31.29	913	)))
4.2	914
	915
64.5	916	== 6.2 AT Command input doesn't work ==
4.2	917
119.3	918
31.30	919	(((
64.5	920	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.
65.22	921
65.23	922
31.30	923	)))
4.2	924
	925
64.5	926	= 7. Order Info =
4.2	927
	928
115.12	929	Part Number: (% style="color:#4f81bd" %)N95S31B-YY
4.7	930
4.2	931
31.10	932	(% class="wikigeneratedid" %)
	933	(((
	934
	935	)))
	936
65.2	937	= 8. Packing Info =
4.2	938
4.3	939	(((
31.39	940
	941
31.40	942	(% style="color:#037691" %)Package Includes:
64.5	943
115.12	944	* N95S31B NB-IoT Temperature and Humidity Sensor
64.5	945	* External antenna x 1
4.3	946	)))
4.2	947
4.3	948	(((
31.40	949
	950
	951	(% style="color:#037691" %)Dimension and weight:
4.2	952
95.3	953	* Device Size: 13.0 x 5 x 4.5 cm
	954	* Device Weight: 150g
115.13	955	* Package Size / pcs : 14.0 x 8x 5 cm
	956	* Weight / pcs : 180g
4.3	957	)))
31.11	958
64.5	959	(((
31.11	960
64.5	961
	962
	963
4.3	964	)))
4.2	965
64.5	966	= 9. Support =
4.2	967
119.3	968
4.2	969	* 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.
	970	* 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]]
119.3	971
	972
	973

Wiki source code of N95S31B NB-IoT Temperature & Humidity Sensor User Manual

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