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

Version 115.14 by Xiaoling on 2022/07/09 17:55

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
	5
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
99.2	20	== 1.1 What is N95S31B NB-IoT Sensor Node ==
1.1	21
12.2	22	(((
35.4	23
	24
99.2	25	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*.
97.13	26
99.2	27	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.
97.13	28
99.2	29	N95S31B supports different uplink methods include (% style="color:blue" %)TCP, MQTT, UDP and CoAP(%%) for different application requirement.
97.13	30
99.2	31	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).
97.13	32
	33
99.2	34	~* make sure you have NB-IoT coverage locally.
4.2	35
42.2	36
12.2	37	)))
4.2	38
99.2	39	[[image:1657348284168-431.png]]
4.2	40
	41
	42
65.3	43	== 1.2 Features ==
13.3	44
44.2	45	* NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
100.2	46	* Monitor Temperature & Humidity via SHT31
4.2	47	* AT Commands to change parameters
	48	* Uplink on periodically
	49	* Downlink to change configure
	50	* IP66 Waterproof Enclosure
100.2	51	* Ultra-Low Power consumption
	52	* AT Commands to change parameters
44.2	53	* Micro SIM card slot for NB-IoT SIM
	54	* 8500mAh Battery for long term use
4.2	55
100.2	56
115.3	57
	58
44.2	59	== 1.3 Specification ==
	60
	61
	62	(% style="color:#037691" %)Common DC Characteristics:
	63
	64	* Supply Voltage: 2.1v ~~ 3.6v
	65	* Operating Temperature: -40 ~~ 85°C
	66
	67	(% style="color:#037691" %)NB-IoT Spec:
	68
	69	* - B1 @H-FDD: 2100MHz
	70	* - B3 @H-FDD: 1800MHz
	71	* - B8 @H-FDD: 900MHz
	72	* - B5 @H-FDD: 850MHz
	73	* - B20 @H-FDD: 800MHz
	74	* - B28 @H-FDD: 700MHz
	75
75.3	76	(% style="color:#037691" %)Battery:
4.2	77
100.2	78
75.3	79	* Li/SOCI2 un-chargeable battery
	80	* Capacity: 8500mAh
	81	* Self Discharge: <1% / Year @ 25°C
	82	* Max continuously current: 130mA
	83	* Max boost current: 2A, 1 second
14.2	84
4.2	85
115.3	86
	87
44.2	88	== 1.4 Applications ==
4.2	89
75.4	90	* Smart Buildings & Home Automation
	91	* Logistics and Supply Chain Management
	92	* Smart Metering
4.2	93	* Smart Agriculture
75.4	94	* Smart Cities
	95	* Smart Factory
4.2	96
15.6	97	(% class="wikigeneratedid" id="H200B1.5FirmwareChangelog" %)
	98
4.2	99
75.4	100
44.2	101	== 1.5 Pin Definitions ==
15.6	102
100.2	103	N95S31B use the mother board from NBSN95 which as below.
15.6	104
100.2	105	[[image:image-20220709144723-1.png]]
4.2	106
14.3	107
100.2	108	=== 1.5.1 Jumper JP2 ===
14.3	109
100.2	110	Power on Device when put this jumper.
14.3	111
100.2	112
	113
	114	=== 1.5.2 BOOT MODE / SW1 ===
	115
	116	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.
	117
	118	2) Flash: work mode, device starts to work and send out console output for further debug
	119
	120
	121
	122	=== 1.5.3 Reset Button ===
	123
	124	Press to reboot the device.
	125
	126
	127
	128	=== 1.5.4 LED ===
	129
	130	It will flash:
	131
	132	1. When boot the device in flash mode
	133	1. Send an uplink packet
	134
	135
	136	= 2. Use N95S31B to communicate with IoT Server =
	137
45.2	138	== 2.1 How it works ==
14.3	139
100.3	140
15.3	141	(((
100.3	142	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	143	)))
4.2	144
45.2	145
15.3	146	(((
100.3	147	The diagram below shows the working flow in default firmware of N95S31B:
15.3	148	)))
4.2	149
77.2	150	(((
	151
	152	)))
4.2	153
102.2	154	[[image:1657350248151-650.png]]
77.2	155
45.2	156	(((
	157
	158	)))
4.2	159
45.2	160
102.2	161	== 2.2 Configure the N95S31B ==
4.2	162
48.2	163
102.2	164	=== 2.2.1 Power On N95S31B ===
	165
	166
	167	[[image:image-20220709150546-2.png]]
	168
102.3	169
45.4	170	=== 2.2.1 Test Requirement ===
4.2	171
	172
102.3	173	To use N95S31B in your city, make sure meet below requirements:
	174
45.4	175	* Your local operator has already distributed a NB-IoT Network there.
102.3	176	* The local NB-IoT network used the band that N95S31B supports.
45.4	177	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
4.2	178
102.3	179	Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.
	180
	181	N95S31B supports different communication protocol such as :
	182
48.2	183	(((
102.3	184	* CoAP ((% style="color:red" %)120.24.4.116:5683(%%))
	185	* raw UDP ((% style="color:red" %)120.24.4.116:5601(%%))
	186	* MQTT ((% style="color:red" %)120.24.4.116:1883(%%))
	187	* TCP ((% style="color:red" %)120.24.4.116:5600(%%))
	188
	189	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.
	190
	191
	192	)))
	193
103.2	194	[[image:1657350625843-586.png]]
4.2	195
	196
	197
104.2	198	=== 2.2.3 Insert SIM card ===
4.2	199
65.11	200	(((
45.4	201	Insert the NB-IoT Card get from your provider.
65.11	202	)))
4.2	203
65.11	204	(((
45.4	205	User need to take out the NB-IoT module and insert the SIM card like below:
65.11	206	)))
4.2	207
	208
104.2	209	[[image:1657351240556-536.png]]
4.2	210
	211
48.2	212
107.2	213	=== 2.2.4 Connect USB – TTL to N95S31B to configure it ===
4.2	214
48.2	215	(((
	216	(((
105.2	217	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.
48.2	218	)))
	219	)))
19.2	220
105.2	221	[[image:1657351312545-300.png]]
4.2	222
48.2	223	Connection:
4.2	224
45.6	225	(% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
4.2	226
45.6	227	(% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD
4.2	228
45.6	229	(% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD
4.2	230
	231
45.4	232	In the PC, use below serial tool settings:
	233
57.4	234	* Baud: (% style="color:green" %)9600
48.2	235	* Data bits: (% style="color:green" %)8(%%)
	236	* Stop bits: (% style="color:green" %)1
57.4	237	* Parity: (% style="color:green" %)None
48.2	238	* Flow Control: (% style="color:green" %)None
45.4	239
48.2	240	(((
105.2	241	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	242	)))
45.4	243
81.2	244	[[image:1657329814315-101.png]]
45.4	245
65.12	246	(((
105.2	247	(% style="color:red" %)Note: the valid AT Commands can be found at: (%%)[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/N95S31B/]]
65.12	248	)))
45.4	249
	250
	251
107.2	252	=== 2.2.5 Use CoAP protocol to uplink data ===
45.4	253
56.2	254	(% 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	255
	256
97.9	257	(((
50.2	258	Use below commands:
97.9	259	)))
45.4	260
97.9	261	* (((
	262	(% style="color:blue" %)AT+PRO=1 (%%) ~/~/ Set to use CoAP protocol to uplink
	263	)))
	264	* (((
	265	(% style="color:blue" %)AT+SERVADDR=120.24.4.116,5683 (%%)~/~/ to set CoAP server address and port
	266	)))
	267	* (((
	268	(% style="color:blue" %)AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" (%%) ~/~/Set COAP resource path
	269	)))
45.4	270
97.9	271	(((
107.2	272
	273
45.4	274	For parameter description, please refer to AT command set
97.9	275	)))
45.4	276
107.2	277	[[image:1657352146020-183.png]]
45.4	278
	279
97.10	280	(((
86.2	281	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	282	)))
45.4	283
107.2	284	[[image:1657352185396-303.png]]
45.4	285
	286
50.2	287
107.2	288	=== 2.2.6 Use UDP protocol to uplink data(Default protocol) ===
45.4	289
	290
97.5	291	* (% style="color:blue" %)AT+PRO=2 (%%) ~/~/ Set to use UDP protocol to uplink
48.2	292	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5601 (%%) ~/~/ to set UDP server address and port
97.5	293	* (% style="color:blue" %)AT+CFM=1 (%%) ~/~/ If the server does not respond, this command is unnecessary
45.4	294
111.2	295	[[image:1657352391268-297.png]]
45.4	296
	297
111.2	298	[[image:1657352403317-397.png]]
45.4	299
52.3	300
86.2	301
111.2	302	=== 2.2.7 Use MQTT protocol to uplink data ===
45.4	303
113.2	304	N95S31B supports only plain MQTT now it doesn't support TLS and other related encryption.
45.4	305
97.11	306	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/Set to use MQTT protocol to uplink
	307	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/Set MQTT server address and port
	308	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%)~/~/Set up the CLIENT of MQTT
97.13	309	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/Set the username of MQTT
	310	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/Set the password of MQTT
114.2	311	* (% style="color:blue" %)AT+PUBTOPIC=f9527 (%%)~/~/Set the sending topic of MQTT
	312	* (% style="color:blue" %)AT+SUBTOPIC=Ns9527 (%%) ~/~/Set the subscription topic of MQTT
45.4	313
111.2	314	[[image:1657352634421-276.png]]
45.4	315
54.2	316
111.2	317	[[image:1657352645687-385.png]]
54.2	318
111.2	319	(((
	320	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.
	321	)))
45.4	322
111.2	323
54.3	324	(((
111.2	325	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	326	)))
45.4	327
	328
54.3	329
113.2	330	=== 2.2.8 Use TCP protocol to uplink data ===
45.4	331
113.2	332	This feature is supported since firmware version v110
45.4	333
56.2	334	* (% style="color:blue" %)AT+PRO=4 (%%) ~/~/ Set to use TCP protocol to uplink
48.2	335	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5600 (%%) ~/~/ to set TCP server address and port
45.4	336
113.2	337	[[image:1657352898400-901.png]]
45.4	338
	339
113.2	340	[[image:1657352914475-252.png]]
45.4	341
57.6	342
89.2	343
113.2	344	=== 2.2.9 Change Update Interval ===
45.4	345
48.2	346	User can use below command to change the (% style="color:green" %)uplink interval.
45.4	347
56.3	348	* (% style="color:blue" %)AT+TDC=600 (%%)~/~/ Set Update Interval to 600s
45.4	349
56.3	350	(((
113.2	351
56.3	352	)))
45.4	353
	354
	355
57.2	356	== 2.3 Uplink Payload ==
4.2	357
32.9	358
114.2	359	NBSN95 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.
90.2	360
114.2	361
	362	For example:
	363
	364	(% style="color:blue" %)AT+CFGMOD=2 (%%)~/~/will set the NBSN95 to work in MOD=2 distance mode which target to measure distance via Ultrasonic Sensor.
	365
	366
	367	The uplink payloads are composed in ASCII String. For example:
	368
	369	0a cd 00 ed 0a cc 00 00 ef 02 d2 1d (total 24 ASCII Chars) . Representative the actually payload:
	370
	371	0x 0a cd 00 ed 0a cc 00 00 ef 02 d2 1d Total 12 bytes
	372
	373
	374	(% style="color:red" %)NOTE:
	375
	376	(% style="color:red" %)
	377	1. All modes share the same Payload Explanation from [[HERE>>path:#Payload_Explain]].
	378	1. By default, the device will send an uplink message every 1 hour.
	379
	380
	381
	382	=== 2.3.1 Payload Analyze ===
	383
	384	N95S31B uplink payload includes in total 21 bytes
	385
	386
97.16	387	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %)
97.12	388	\|=(% style="width: 60px;" %)(((
57.2	389	Size(bytes)
114.2	390	)))\|=(% style="width: 60px;" %)6\|=(% style="width: 35px;" %)2\|=(% style="width: 35px;" %)2\|=(% style="width: 80px;" %)1\|=(% style="width: 80px;" %) \|=(% style="width: 99px;" %) \|=(% style="width: 77px;" %)2\|=(% style="width: 60px;" %)1
	391	\|(% style="width:97px" %)Value\|(% style="width:83px" %)[[Device ID>>\|\|anchor="H2.4.1A0A0DeviceID"]]\|(% style="width:41px" %)[[Ver>>\|\|anchor="H2.4.2A0VersionInfo"]]\|(% style="width:46px" %)[[BAT>>\|\|anchor="H2.4.3A0BatteryInfo"]]\|(% style="width:123px" %)[[Signal Strength>>\|\|anchor="H2.4.4A0SignalStrength"]]\|(% style="width:123px" %)MOD 0X01\|(% style="width:99px" %)(((
	392	Reserve/ Same as NBSN95 CFGMOD=1
57.2	393
114.2	394	No function here.
	395	)))\|(% style="width:77px" %)(((
	396	[[Temperature >>\|\|anchor="H2.4.5A0Distance"]]
	397
	398	By SHT31
	399	)))\|(% style="width:80px" %)(((
	400	[[Humidity>>\|\|anchor="H2.4.6A0DigitalInterrupt"]]
	401
	402	By SHT31
	403	)))
	404
65.13	405	(((
114.2	406	(((
	407	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	408	)))
114.2	409	)))
57.2	410
	411
114.2	412	[[image:1657354294009-643.png]]
57.2	413
	414
115.2	415	The payload is ASCII string, representative same HEX: 0x724031607457006e0ccd1b0100dc000ccc00e10186 where:
57.2	416
115.2	417	* Device ID: 0x724031607457 = 724031607457
	418	* Version: 0x006e=110=1.1.0
57.2	419
115.2	420	* BAT: 0x0ccd = 3277 mV = 3.277V
	421	* Signal: 0x1b = 27
	422	* Model: 0x01 = 1
	423	* 0x00dc000ccc= reserve, ignore in N95S31B
	424	* Temperature by SHT31: 0x00e1 = 225 = 22.5 °C
	425	* Humidity by SHT31: 0x0186 = 390 = 39.0 %rh
	426
	427	(((
	428
90.2	429	)))
95.5	430
115.2	431	(((
95.5	432
90.2	433	)))
57.2	434
4.2	435
115.2	436	=== 2.3.2 Device ID ===
57.7	437
65.13	438	(((
57.3	439	By default, the Device ID equal to the last 6 bytes of IMEI.
65.13	440	)))
4.2	441
65.13	442	(((
57.4	443	User can use (% style="color:blue" %)AT+DEUI(%%) to set Device ID
65.13	444	)))
4.2	445
65.13	446	(((
57.3	447	Example:
65.13	448	)))
4.2	449
65.13	450	(((
57.3	451	AT+DEUI=A84041F15612
65.13	452	)))
4.2	453
65.13	454	(((
91.1	455	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
65.13	456	)))
22.2	457
4.2	458
	459
115.2	460	=== 2.3.3 Version Info ===
57.5	461
4.2	462
115.2	463	These bytes include the hardware and software version.
	464
	465	Higher byte: Specify hardware version: always 0x00 for N95S31B
	466
	467	Lower byte: Specify the software version: 0x6E=110, means firmware version 110
	468
	469
	470	For example: 0x00 6E: this device is N95S31B with firmware version 110.
	471
65.13	472	(((
115.2	473
65.13	474	)))
4.2	475
	476
115.2	477	=== 2.3.4 Battery Info ===
57.3	478
32.10	479	(((
4.2	480	Ex1: 0x0B45 = 2885mV
32.10	481	)))
4.2	482
32.10	483	(((
4.2	484	Ex2: 0x0B49 = 2889mV
32.10	485	)))
4.2	486
	487
	488
115.2	489	=== 2.3.5 Signal Strength ===
4.2	490
65.13	491	(((
57.6	492	NB-IoT Network signal Strength.
65.13	493	)))
57.6	494
65.13	495	(((
57.6	496	Ex1: 0x1d = 29
65.13	497	)))
57.6	498
65.13	499	(((
57.6	500	(% style="color:blue" %)0(%%) -113dBm or less
65.13	501	)))
57.6	502
65.13	503	(((
57.6	504	(% style="color:blue" %)1(%%) -111dBm
65.13	505	)))
57.6	506
65.13	507	(((
57.6	508	(% style="color:blue" %)2...30(%%) -109dBm... -53dBm
65.13	509	)))
57.6	510
65.13	511	(((
57.6	512	(% style="color:blue" %)31 (%%) -51dBm or greater
65.13	513	)))
57.6	514
65.13	515	(((
57.6	516	(% style="color:blue" %)99 (%%) Not known or not detectable
65.13	517	)))
57.6	518
	519
	520
115.2	521	=== 2.3.6 Temperature & Humidity ===
57.6	522
115.2	523	The device will be able to get the SHT31 temperature and humidity data now and upload to IoT Server.
4.2	524
115.2	525	[[image:image-20220709161741-3.png]]
4.2	526
	527
115.2	528	Convert the read byte to decimal and divide it by ten.
4.2	529
23.2	530
115.2	531	Example:
23.2	532
115.2	533	Temperature: Read:00ec (H) = 236(D) Value: 236 /10=23.6℃
4.2	534
115.2	535	Humidity: Read:0295(H)=661(D) Value: 661 / 10=66.1, So 66.1%
4.2	536
	537
	538
115.14	539	== 2.4 Downlink Payload ==
4.2	540
92.2	541	By default, NDDS75 prints the downlink payload to console port.
4.2	542
92.2	543	[[image:image-20220709100028-1.png]]
4.2	544
	545
32.14	546	(((
40.4	547	(% style="color:blue" %)Examples:
32.14	548	)))
4.2	549
32.14	550	(((
	551
	552	)))
4.2	553
32.14	554	* (((
40.4	555	(% style="color:blue" %)Set TDC
32.14	556	)))
4.2	557
32.14	558	(((
60.2	559	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
32.14	560	)))
4.2	561
32.14	562	(((
4.2	563	Payload: 01 00 00 1E TDC=30S
32.14	564	)))
4.2	565
32.14	566	(((
4.2	567	Payload: 01 00 00 3C TDC=60S
32.14	568	)))
4.2	569
32.14	570	(((
	571
	572	)))
4.2	573
32.14	574	* (((
40.4	575	(% style="color:blue" %)Reset
32.14	576	)))
4.2	577
32.14	578	(((
92.2	579	If payload = 0x04FF, it will reset the NDDS75
32.14	580	)))
4.2	581
	582
60.2	583	* (% style="color:blue" %)INTMOD
4.2	584
65.17	585	(((
60.2	586	Downlink Payload: 06000003, Set AT+INTMOD=3
65.17	587	)))
4.2	588
	589
26.2	590
115.5	591	== 2.5 Battery Analysis ==
4.2	592
115.5	593	=== 2.5.1 Battery Type ===
4.2	594
	595
65.18	596	(((
115.7	597	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	598	)))
4.2	599
65.18	600	(((
62.3	601	The battery is designed to last for several years depends on the actually use environment and update interval.
65.18	602	)))
4.2	603
65.18	604	(((
60.2	605	The battery related documents as below:
65.18	606	)))
4.2	607
60.2	608	* [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
65.7	609	* [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
60.2	610	* [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
4.2	611
29.2	612	(((
95.2	613	[[image:image-20220709101450-2.png]]
29.2	614	)))
4.2	615
	616
35.18	617
115.6	618	=== 2.5.2 Power consumption Analyze ===
4.2	619
62.3	620	(((
115.7	621	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.
62.3	622	)))
4.2	623
62.3	624	(((
115.7	625
62.3	626	)))
4.2	627
	628
115.6	629	=== 2.5.3 Battery Note ===
4.2	630
31.6	631	(((
115.7	632	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	633	)))
4.2	634
	635
	636
115.6	637	=== 2.5.4 Replace the battery ===
31.2	638
115.8	639
62.2	640	(((
115.8	641	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	642	)))
4.2	643
	644
115.8	645	(((
	646	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).
	647	)))
4.2	648
115.8	649
	650
63.2	651	= 3. Access NB-IoT Module =
4.2	652
63.2	653	(((
	654	Users can directly access the AT command set of the NB-IoT module.
	655	)))
	656
	657	(((
64.2	658	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/]]
63.2	659	)))
	660
95.2	661	[[image:1657333200519-600.png]]
63.2	662
	663
	664
64.2	665	= 4. Using the AT Commands =
63.2	666
64.2	667	== 4.1 Access AT Commands ==
9.2	668
115.9	669	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/]]
11.4	670
4.2	671
64.2	672	AT+<CMD>? : Help on <CMD>
4.2	673
64.2	674	AT+<CMD> : Run <CMD>
4.2	675
64.2	676	AT+<CMD>=<value> : Set the value
4.2	677
64.2	678	AT+<CMD>=? : Get the value
4.2	679
	680
11.6	681	(% style="color:#037691" %)General Commands(%%)
4.2	682
64.2	683	AT : Attention
4.2	684
64.2	685	AT? : Short Help
4.2	686
64.2	687	ATZ : MCU Reset
4.2	688
64.2	689	AT+TDC : Application Data Transmission Interval
4.2	690
64.2	691	AT+CFG : Print all configurations
4.2	692
64.2	693	AT+CFGMOD : Working mode selection
4.2	694
64.2	695	AT+INTMOD : Set the trigger interrupt mode
4.2	696
64.2	697	AT+5VT : Set extend the time of 5V power
4.2	698
64.2	699	AT+PRO : Choose agreement
4.2	700
64.2	701	AT+WEIGRE : Get weight or set weight to 0
4.2	702
64.2	703	AT+WEIGAP : Get or Set the GapValue of weight
4.2	704
64.2	705	AT+RXDL : Extend the sending and receiving time
4.2	706
64.2	707	AT+CNTFAC : Get or set counting parameters
4.2	708
64.2	709	AT+SERVADDR : Server Address
4.2	710
	711
64.2	712	(% style="color:#037691" %)COAP Management
4.2	713
64.2	714	AT+URI : Resource parameters
4.2	715
	716
64.2	717	(% style="color:#037691" %)UDP Management
4.2	718
64.2	719	AT+CFM : Upload confirmation mode (only valid for UDP)
4.2	720
	721
64.2	722	(% style="color:#037691" %)MQTT Management
4.2	723
64.2	724	AT+CLIENT : Get or Set MQTT client
4.2	725
64.2	726	AT+UNAME : Get or Set MQTT Username
4.2	727
64.2	728	AT+PWD : Get or Set MQTT password
4.2	729
64.2	730	AT+PUBTOPIC : Get or Set MQTT publish topic
4.2	731
64.2	732	AT+SUBTOPIC : Get or Set MQTT subscription topic
4.2	733
	734
64.2	735	(% style="color:#037691" %)Information
4.2	736
64.2	737	AT+FDR : Factory Data Reset
4.2	738
64.2	739	AT+PWORD : Serial Access Password
4.2	740
	741
	742
64.4	743	= 5. FAQ =
4.2	744
64.4	745	== 5.1 How to Upgrade Firmware ==
6.3	746
4.2	747
31.35	748	(((
64.4	749	User can upgrade the firmware for 1) bug fix, 2) new feature release.
31.35	750	)))
4.2	751
31.35	752	(((
64.4	753	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	754	)))
4.2	755
31.35	756	(((
115.10	757
	758
	759	(% style="color:red" %)Notice, N95S31B and LSN50v2 share the same mother board. They use the same connection and method to update.
31.35	760	)))
4.2	761
	762
	763
64.5	764	= 6. Trouble Shooting =
4.2	765
64.5	766	== 6.1 Connection problem when uploading firmware ==
4.9	767
4.2	768
65.20	769	(((
	770	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]]
	771	)))
	772
64.5	773	(% class="wikigeneratedid" %)
31.29	774	(((
65.20	775
31.29	776	)))
4.2	777
	778
64.5	779	== 6.2 AT Command input doesn't work ==
4.2	780
31.30	781	(((
64.5	782	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	783
65.23	784
31.30	785	)))
4.2	786
	787
64.5	788	= 7. Order Info =
4.2	789
	790
115.12	791	Part Number: (% style="color:#4f81bd" %)N95S31B-YY
4.7	792
4.2	793
31.10	794	(% class="wikigeneratedid" %)
	795	(((
	796
	797	)))
	798
65.2	799	= 8. Packing Info =
4.2	800
4.3	801	(((
31.39	802
	803
31.40	804	(% style="color:#037691" %)Package Includes:
64.5	805
115.12	806	* N95S31B NB-IoT Temperature and Humidity Sensor
64.5	807	* External antenna x 1
4.3	808	)))
4.2	809
4.3	810	(((
31.40	811
	812
	813	(% style="color:#037691" %)Dimension and weight:
4.2	814
95.3	815	* Device Size: 13.0 x 5 x 4.5 cm
	816	* Device Weight: 150g
115.13	817	* Package Size / pcs : 14.0 x 8x 5 cm
	818	* Weight / pcs : 180g
4.3	819	)))
31.11	820
64.5	821	(((
31.11	822
64.5	823
	824
	825
4.3	826	)))
4.2	827
64.5	828	= 9. Support =
4.2	829
	830	* 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.
	831	* 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]]

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

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