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

Version 118.1 by Xiaoling on 2022/07/11 14:15

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
115.25	25	(((
99.2	26	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	27	)))
97.13	28
115.25	29	(((
99.2	30	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	31	)))
97.13	32
115.25	33	(((
99.2	34	N95S31B supports different uplink methods include (% style="color:blue" %)TCP, MQTT, UDP and CoAP(%%) for different application requirement.
115.25	35	)))
97.13	36
115.25	37	(((
99.2	38	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	39	)))
97.13	40
115.25	41	(((
	42
	43	)))
97.13	44
115.25	45	(((
99.2	46	~* make sure you have NB-IoT coverage locally.
115.25	47	)))
4.2	48
42.2	49
12.2	50	)))
4.2	51
99.2	52	[[image:1657348284168-431.png]]
4.2	53
	54
	55
65.3	56	== 1.2 Features ==
13.3	57
44.2	58	* NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
100.2	59	* Monitor Temperature & Humidity via SHT31
4.2	60	* AT Commands to change parameters
	61	* Uplink on periodically
	62	* Downlink to change configure
	63	* IP66 Waterproof Enclosure
100.2	64	* Ultra-Low Power consumption
	65	* AT Commands to change parameters
44.2	66	* Micro SIM card slot for NB-IoT SIM
	67	* 8500mAh Battery for long term use
4.2	68
115.27	69
44.2	70	== 1.3 Specification ==
	71
	72
	73	(% style="color:#037691" %)Common DC Characteristics:
	74
	75	* Supply Voltage: 2.1v ~~ 3.6v
	76	* Operating Temperature: -40 ~~ 85°C
	77
	78	(% style="color:#037691" %)NB-IoT Spec:
	79
	80	* - B1 @H-FDD: 2100MHz
	81	* - B3 @H-FDD: 1800MHz
	82	* - B8 @H-FDD: 900MHz
	83	* - B5 @H-FDD: 850MHz
	84	* - B20 @H-FDD: 800MHz
	85	* - B28 @H-FDD: 700MHz
	86
75.3	87	(% style="color:#037691" %)Battery:
4.2	88
75.3	89	* Li/SOCI2 un-chargeable battery
	90	* Capacity: 8500mAh
	91	* Self Discharge: <1% / Year @ 25°C
	92	* Max continuously current: 130mA
	93	* Max boost current: 2A, 1 second
14.2	94
115.28	95
44.2	96	== 1.4 Applications ==
4.2	97
75.4	98	* Smart Buildings & Home Automation
	99	* Logistics and Supply Chain Management
	100	* Smart Metering
4.2	101	* Smart Agriculture
75.4	102	* Smart Cities
	103	* Smart Factory
4.2	104
15.6	105	(% class="wikigeneratedid" id="H200B1.5FirmwareChangelog" %)
	106
4.2	107
75.4	108
117.2	109	== 1.5 Pin Definitions & Switch ==
15.6	110
100.2	111	N95S31B use the mother board from NBSN95 which as below.
15.6	112
100.2	113	[[image:image-20220709144723-1.png]]
4.2	114
14.3	115
100.2	116	=== 1.5.1 Jumper JP2 ===
14.3	117
100.2	118	Power on Device when put this jumper.
14.3	119
100.2	120
	121
	122	=== 1.5.2 BOOT MODE / SW1 ===
	123
115.29	124	(((
100.2	125	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	126	)))
100.2	127
115.29	128	(((
100.2	129	2) Flash: work mode, device starts to work and send out console output for further debug
115.29	130	)))
100.2	131
	132
	133
	134	=== 1.5.3 Reset Button ===
	135
	136	Press to reboot the device.
	137
	138
	139
	140	=== 1.5.4 LED ===
	141
	142	It will flash:
	143
	144	1. When boot the device in flash mode
	145	1. Send an uplink packet
	146
115.30	147
100.2	148	= 2. Use N95S31B to communicate with IoT Server =
	149
45.2	150	== 2.1 How it works ==
14.3	151
100.3	152
15.3	153	(((
100.3	154	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	155	)))
4.2	156
45.2	157
15.3	158	(((
100.3	159	The diagram below shows the working flow in default firmware of N95S31B:
15.3	160	)))
4.2	161
77.2	162	(((
	163
	164	)))
4.2	165
102.2	166	[[image:1657350248151-650.png]]
77.2	167
45.2	168	(((
	169
	170	)))
4.2	171
45.2	172
102.2	173	== 2.2 Configure the N95S31B ==
4.2	174
48.2	175
102.2	176	=== 2.2.1 Power On N95S31B ===
	177
	178
	179	[[image:image-20220709150546-2.png]]
	180
102.3	181
45.4	182	=== 2.2.1 Test Requirement ===
4.2	183
	184
115.31	185	(((
102.3	186	To use N95S31B in your city, make sure meet below requirements:
115.31	187	)))
102.3	188
115.31	189	* (((
	190	Your local operator has already distributed a NB-IoT Network there.
	191	)))
	192	* (((
	193	The local NB-IoT network used the band that N95S31B supports.
	194	)))
	195	* (((
	196	Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
	197	)))
4.2	198
115.31	199	(((
102.3	200	Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.
115.31	201	)))
102.3	202
115.31	203	(((
102.3	204	N95S31B supports different communication protocol such as :
115.31	205	)))
102.3	206
48.2	207	(((
115.31	208	* (((
	209	CoAP ((% style="color:red" %)120.24.4.116:5683(%%))
	210	)))
	211	* (((
	212	raw UDP ((% style="color:red" %)120.24.4.116:5601(%%))
	213	)))
	214	* (((
	215	MQTT ((% style="color:red" %)120.24.4.116:1883(%%))
	216	)))
	217	* (((
	218	TCP ((% style="color:red" %)120.24.4.116:5600(%%))
	219	)))
102.3	220
115.31	221	(((
102.3	222	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	223	)))
102.3	224
	225
	226	)))
	227
103.2	228	[[image:1657350625843-586.png]]
4.2	229
	230
	231
104.2	232	=== 2.2.3 Insert SIM card ===
4.2	233
65.11	234	(((
45.4	235	Insert the NB-IoT Card get from your provider.
65.11	236	)))
4.2	237
65.11	238	(((
45.4	239	User need to take out the NB-IoT module and insert the SIM card like below:
65.11	240	)))
4.2	241
	242
104.2	243	[[image:1657351240556-536.png]]
4.2	244
	245
48.2	246
107.2	247	=== 2.2.4 Connect USB – TTL to N95S31B to configure it ===
4.2	248
48.2	249	(((
	250	(((
105.2	251	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	252	)))
	253	)))
19.2	254
105.2	255	[[image:1657351312545-300.png]]
4.2	256
48.2	257	Connection:
4.2	258
45.6	259	(% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
4.2	260
45.6	261	(% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD
4.2	262
45.6	263	(% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD
4.2	264
	265
45.4	266	In the PC, use below serial tool settings:
	267
57.4	268	* Baud: (% style="color:green" %)9600
48.2	269	* Data bits: (% style="color:green" %)8(%%)
	270	* Stop bits: (% style="color:green" %)1
57.4	271	* Parity: (% style="color:green" %)None
48.2	272	* Flow Control: (% style="color:green" %)None
45.4	273
48.2	274	(((
105.2	275	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	276	)))
45.4	277
81.2	278	[[image:1657329814315-101.png]]
45.4	279
65.12	280	(((
105.2	281	(% 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	282	)))
45.4	283
	284
	285
107.2	286	=== 2.2.5 Use CoAP protocol to uplink data ===
45.4	287
56.2	288	(% 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	289
	290
97.9	291	(((
50.2	292	Use below commands:
97.9	293	)))
45.4	294
97.9	295	* (((
	296	(% style="color:blue" %)AT+PRO=1 (%%) ~/~/ Set to use CoAP protocol to uplink
	297	)))
	298	* (((
	299	(% style="color:blue" %)AT+SERVADDR=120.24.4.116,5683 (%%)~/~/ to set CoAP server address and port
	300	)))
	301	* (((
	302	(% style="color:blue" %)AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" (%%) ~/~/Set COAP resource path
	303	)))
45.4	304
97.9	305	(((
107.2	306
	307
45.4	308	For parameter description, please refer to AT command set
97.9	309	)))
45.4	310
107.2	311	[[image:1657352146020-183.png]]
45.4	312
	313
97.10	314	(((
86.2	315	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	316	)))
45.4	317
107.2	318	[[image:1657352185396-303.png]]
45.4	319
	320
50.2	321
107.2	322	=== 2.2.6 Use UDP protocol to uplink data(Default protocol) ===
45.4	323
	324
97.5	325	* (% style="color:blue" %)AT+PRO=2 (%%) ~/~/ Set to use UDP protocol to uplink
48.2	326	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5601 (%%) ~/~/ to set UDP server address and port
97.5	327	* (% style="color:blue" %)AT+CFM=1 (%%) ~/~/ If the server does not respond, this command is unnecessary
45.4	328
111.2	329	[[image:1657352391268-297.png]]
45.4	330
	331
111.2	332	[[image:1657352403317-397.png]]
45.4	333
52.3	334
86.2	335
111.2	336	=== 2.2.7 Use MQTT protocol to uplink data ===
45.4	337
113.2	338	N95S31B supports only plain MQTT now it doesn't support TLS and other related encryption.
45.4	339
97.11	340	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/Set to use MQTT protocol to uplink
	341	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/Set MQTT server address and port
	342	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%)~/~/Set up the CLIENT of MQTT
97.13	343	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/Set the username of MQTT
	344	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/Set the password of MQTT
114.2	345	* (% style="color:blue" %)AT+PUBTOPIC=f9527 (%%)~/~/Set the sending topic of MQTT
	346	* (% style="color:blue" %)AT+SUBTOPIC=Ns9527 (%%) ~/~/Set the subscription topic of MQTT
45.4	347
111.2	348	[[image:1657352634421-276.png]]
45.4	349
54.2	350
111.2	351	[[image:1657352645687-385.png]]
54.2	352
111.2	353	(((
	354	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.
	355	)))
45.4	356
111.2	357
54.3	358	(((
111.2	359	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	360	)))
45.4	361
	362
54.3	363
113.2	364	=== 2.2.8 Use TCP protocol to uplink data ===
45.4	365
113.2	366	This feature is supported since firmware version v110
45.4	367
56.2	368	* (% style="color:blue" %)AT+PRO=4 (%%) ~/~/ Set to use TCP protocol to uplink
48.2	369	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5600 (%%) ~/~/ to set TCP server address and port
45.4	370
113.2	371	[[image:1657352898400-901.png]]
45.4	372
	373
113.2	374	[[image:1657352914475-252.png]]
45.4	375
57.6	376
89.2	377
113.2	378	=== 2.2.9 Change Update Interval ===
45.4	379
48.2	380	User can use below command to change the (% style="color:green" %)uplink interval.
45.4	381
56.3	382	* (% style="color:blue" %)AT+TDC=600 (%%)~/~/ Set Update Interval to 600s
45.4	383
56.3	384	(((
113.2	385
56.3	386	)))
45.4	387
	388
	389
57.2	390	== 2.3 Uplink Payload ==
4.2	391
32.9	392
115.32	393	(((
114.2	394	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.
115.32	395	)))
90.2	396
114.2	397
115.32	398	(((
114.2	399	For example:
115.32	400	)))
114.2	401
115.32	402	(((
114.2	403	(% 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.
115.32	404	)))
114.2	405
	406
115.32	407	(((
114.2	408	The uplink payloads are composed in ASCII String. For example:
115.32	409	)))
114.2	410
115.32	411	(((
114.2	412	0a cd 00 ed 0a cc 00 00 ef 02 d2 1d (total 24 ASCII Chars) . Representative the actually payload:
115.32	413	)))
114.2	414
115.32	415	(((
114.2	416	0x 0a cd 00 ed 0a cc 00 00 ef 02 d2 1d Total 12 bytes
115.32	417	)))
114.2	418
	419
115.32	420	(((
114.2	421	(% style="color:red" %)NOTE:
115.32	422	)))
114.2	423
	424	(% style="color:red" %)
115.32	425	1. (((
	426	All modes share the same Payload Explanation from [[HERE>>\|\|anchor="H2.3A0UplinkPayload"]].
	427	)))
	428	1. (((
	429	By default, the device will send an uplink message every 1 hour.
	430	)))
114.2	431
115.21	432
114.2	433	=== 2.3.1 Payload Analyze ===
	434
	435	N95S31B uplink payload includes in total 21 bytes
	436
	437
115.17	438	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:520px" %)
115.19	439	\|=(% style="width: 60px;" %)(((
57.2	440	Size(bytes)
115.23	441	)))\|=(% 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	442	\|(% 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	443	(((
114.2	444	Reserve/ Same as NBSN95 CFGMOD=1
115.21	445	)))
57.2	446
115.21	447	(((
114.2	448	No function here.
115.21	449	)))
114.2	450	)))\|(% style="width:77px" %)(((
115.21	451	(((
115.15	452	[[Temperature >>\|\|anchor="H2.3.6A0Temperature26Humidity"]]
115.21	453	)))
114.2	454
115.21	455	(((
114.2	456	By SHT31
115.21	457	)))
114.2	458	)))\|(% style="width:80px" %)(((
115.21	459	(((
115.15	460	[[Humidity>>\|\|anchor="H2.3.6A0Temperature26Humidity"]]
115.21	461	)))
114.2	462
115.21	463	(((
114.2	464	By SHT31
	465	)))
115.21	466	)))
114.2	467
65.13	468	(((
114.2	469	(((
	470	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	471	)))
114.2	472	)))
57.2	473
	474
114.2	475	[[image:1657354294009-643.png]]
57.2	476
	477
115.2	478	The payload is ASCII string, representative same HEX: 0x724031607457006e0ccd1b0100dc000ccc00e10186 where:
57.2	479
115.2	480	* Device ID: 0x724031607457 = 724031607457
	481	* Version: 0x006e=110=1.1.0
57.2	482
115.2	483	* BAT: 0x0ccd = 3277 mV = 3.277V
	484	* Signal: 0x1b = 27
	485	* Model: 0x01 = 1
	486	* 0x00dc000ccc= reserve, ignore in N95S31B
	487	* Temperature by SHT31: 0x00e1 = 225 = 22.5 °C
	488	* Humidity by SHT31: 0x0186 = 390 = 39.0 %rh
	489
	490	(((
	491
90.2	492	)))
95.5	493
115.2	494	(((
95.5	495
90.2	496	)))
57.2	497
4.2	498
115.2	499	=== 2.3.2 Device ID ===
57.7	500
65.13	501	(((
57.3	502	By default, the Device ID equal to the last 6 bytes of IMEI.
65.13	503	)))
4.2	504
65.13	505	(((
57.4	506	User can use (% style="color:blue" %)AT+DEUI(%%) to set Device ID
65.13	507	)))
4.2	508
65.13	509	(((
57.3	510	Example:
65.13	511	)))
4.2	512
65.13	513	(((
57.3	514	AT+DEUI=A84041F15612
65.13	515	)))
4.2	516
65.13	517	(((
91.1	518	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
65.13	519	)))
22.2	520
4.2	521
	522
115.2	523	=== 2.3.3 Version Info ===
57.5	524
116.2	525	(((
115.2	526	These bytes include the hardware and software version.
116.2	527	)))
115.2	528
116.2	529	(((
115.2	530	Higher byte: Specify hardware version: always 0x00 for N95S31B
116.2	531	)))
115.2	532
116.2	533	(((
115.2	534	Lower byte: Specify the software version: 0x6E=110, means firmware version 110
116.2	535	)))
115.2	536
116.2	537	(((
	538
	539	)))
115.2	540
116.2	541	(((
115.2	542	For example: 0x00 6E: this device is N95S31B with firmware version 110.
116.2	543	)))
115.2	544
65.13	545	(((
115.2	546
65.13	547	)))
4.2	548
	549
115.2	550	=== 2.3.4 Battery Info ===
57.3	551
32.10	552	(((
4.2	553	Ex1: 0x0B45 = 2885mV
32.10	554	)))
4.2	555
32.10	556	(((
4.2	557	Ex2: 0x0B49 = 2889mV
32.10	558	)))
4.2	559
	560
	561
115.2	562	=== 2.3.5 Signal Strength ===
4.2	563
65.13	564	(((
57.6	565	NB-IoT Network signal Strength.
65.13	566	)))
57.6	567
65.13	568	(((
57.6	569	Ex1: 0x1d = 29
65.13	570	)))
57.6	571
65.13	572	(((
57.6	573	(% style="color:blue" %)0(%%) -113dBm or less
65.13	574	)))
57.6	575
65.13	576	(((
57.6	577	(% style="color:blue" %)1(%%) -111dBm
65.13	578	)))
57.6	579
65.13	580	(((
57.6	581	(% style="color:blue" %)2...30(%%) -109dBm... -53dBm
65.13	582	)))
57.6	583
65.13	584	(((
57.6	585	(% style="color:blue" %)31 (%%) -51dBm or greater
65.13	586	)))
57.6	587
65.13	588	(((
57.6	589	(% style="color:blue" %)99 (%%) Not known or not detectable
65.13	590	)))
57.6	591
	592
	593
115.2	594	=== 2.3.6 Temperature & Humidity ===
57.6	595
115.2	596	The device will be able to get the SHT31 temperature and humidity data now and upload to IoT Server.
4.2	597
115.2	598	[[image:image-20220709161741-3.png]]
4.2	599
	600
115.2	601	Convert the read byte to decimal and divide it by ten.
4.2	602
23.2	603
115.2	604	Example:
23.2	605
115.2	606	Temperature: Read:00ec (H) = 236(D) Value: 236 /10=23.6℃
4.2	607
115.2	608	Humidity: Read:0295(H)=661(D) Value: 661 / 10=66.1, So 66.1%
4.2	609
	610
	611
115.14	612	== 2.4 Downlink Payload ==
4.2	613
92.2	614	By default, NDDS75 prints the downlink payload to console port.
4.2	615
92.2	616	[[image:image-20220709100028-1.png]]
4.2	617
	618
32.14	619	(((
40.4	620	(% style="color:blue" %)Examples:
32.14	621	)))
4.2	622
32.14	623	(((
	624
	625	)))
4.2	626
32.14	627	* (((
40.4	628	(% style="color:blue" %)Set TDC
32.14	629	)))
4.2	630
32.14	631	(((
60.2	632	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
32.14	633	)))
4.2	634
32.14	635	(((
4.2	636	Payload: 01 00 00 1E TDC=30S
32.14	637	)))
4.2	638
32.14	639	(((
4.2	640	Payload: 01 00 00 3C TDC=60S
32.14	641	)))
4.2	642
32.14	643	(((
	644
	645	)))
4.2	646
32.14	647	* (((
40.4	648	(% style="color:blue" %)Reset
32.14	649	)))
4.2	650
32.14	651	(((
92.2	652	If payload = 0x04FF, it will reset the NDDS75
32.14	653	)))
4.2	654
	655
60.2	656	* (% style="color:blue" %)INTMOD
4.2	657
65.17	658	(((
60.2	659	Downlink Payload: 06000003, Set AT+INTMOD=3
65.17	660	)))
4.2	661
	662
26.2	663
115.5	664	== 2.5 Battery Analysis ==
4.2	665
115.5	666	=== 2.5.1 Battery Type ===
4.2	667
	668
65.18	669	(((
115.7	670	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	671	)))
4.2	672
65.18	673	(((
62.3	674	The battery is designed to last for several years depends on the actually use environment and update interval.
65.18	675	)))
4.2	676
65.18	677	(((
60.2	678	The battery related documents as below:
65.18	679	)))
4.2	680
60.2	681	* [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
65.7	682	* [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
60.2	683	* [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
4.2	684
29.2	685	(((
95.2	686	[[image:image-20220709101450-2.png]]
29.2	687	)))
4.2	688
	689
35.18	690
115.6	691	=== 2.5.2 Power consumption Analyze ===
4.2	692
62.3	693	(((
115.7	694	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	695	)))
4.2	696
62.3	697	(((
115.7	698
62.3	699	)))
4.2	700
	701
115.6	702	=== 2.5.3 Battery Note ===
4.2	703
31.6	704	(((
115.7	705	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	706	)))
4.2	707
	708
	709
115.6	710	=== 2.5.4 Replace the battery ===
31.2	711
115.8	712
62.2	713	(((
115.8	714	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	715	)))
4.2	716
	717
115.8	718	(((
	719	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).
	720	)))
4.2	721
115.8	722
	723
63.2	724	= 3. Access NB-IoT Module =
4.2	725
63.2	726	(((
	727	Users can directly access the AT command set of the NB-IoT module.
	728	)))
	729
	730	(((
64.2	731	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	732	)))
	733
95.2	734	[[image:1657333200519-600.png]]
63.2	735
	736
	737
64.2	738	= 4. Using the AT Commands =
63.2	739
64.2	740	== 4.1 Access AT Commands ==
9.2	741
115.9	742	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	743
4.2	744
64.2	745	AT+<CMD>? : Help on <CMD>
4.2	746
64.2	747	AT+<CMD> : Run <CMD>
4.2	748
64.2	749	AT+<CMD>=<value> : Set the value
4.2	750
64.2	751	AT+<CMD>=? : Get the value
4.2	752
	753
11.6	754	(% style="color:#037691" %)General Commands(%%)
4.2	755
64.2	756	AT : Attention
4.2	757
64.2	758	AT? : Short Help
4.2	759
64.2	760	ATZ : MCU Reset
4.2	761
64.2	762	AT+TDC : Application Data Transmission Interval
4.2	763
64.2	764	AT+CFG : Print all configurations
4.2	765
64.2	766	AT+CFGMOD : Working mode selection
4.2	767
64.2	768	AT+INTMOD : Set the trigger interrupt mode
4.2	769
64.2	770	AT+5VT : Set extend the time of 5V power
4.2	771
64.2	772	AT+PRO : Choose agreement
4.2	773
64.2	774	AT+WEIGRE : Get weight or set weight to 0
4.2	775
64.2	776	AT+WEIGAP : Get or Set the GapValue of weight
4.2	777
64.2	778	AT+RXDL : Extend the sending and receiving time
4.2	779
64.2	780	AT+CNTFAC : Get or set counting parameters
4.2	781
64.2	782	AT+SERVADDR : Server Address
4.2	783
	784
64.2	785	(% style="color:#037691" %)COAP Management
4.2	786
64.2	787	AT+URI : Resource parameters
4.2	788
	789
64.2	790	(% style="color:#037691" %)UDP Management
4.2	791
64.2	792	AT+CFM : Upload confirmation mode (only valid for UDP)
4.2	793
	794
64.2	795	(% style="color:#037691" %)MQTT Management
4.2	796
64.2	797	AT+CLIENT : Get or Set MQTT client
4.2	798
64.2	799	AT+UNAME : Get or Set MQTT Username
4.2	800
64.2	801	AT+PWD : Get or Set MQTT password
4.2	802
64.2	803	AT+PUBTOPIC : Get or Set MQTT publish topic
4.2	804
64.2	805	AT+SUBTOPIC : Get or Set MQTT subscription topic
4.2	806
	807
64.2	808	(% style="color:#037691" %)Information
4.2	809
64.2	810	AT+FDR : Factory Data Reset
4.2	811
64.2	812	AT+PWORD : Serial Access Password
4.2	813
	814
	815
64.4	816	= 5. FAQ =
4.2	817
64.4	818	== 5.1 How to Upgrade Firmware ==
6.3	819
4.2	820
31.35	821	(((
64.4	822	User can upgrade the firmware for 1) bug fix, 2) new feature release.
31.35	823	)))
4.2	824
31.35	825	(((
64.4	826	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	827	)))
4.2	828
31.35	829	(((
115.10	830
	831
115.34	832	(((
115.10	833	(% style="color:red" %)Notice, N95S31B and LSN50v2 share the same mother board. They use the same connection and method to update.
31.35	834	)))
115.34	835	)))
4.2	836
	837
	838
64.5	839	= 6. Trouble Shooting =
4.2	840
64.5	841	== 6.1 Connection problem when uploading firmware ==
4.9	842
4.2	843
65.20	844	(((
	845	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]]
	846	)))
	847
64.5	848	(% class="wikigeneratedid" %)
31.29	849	(((
65.20	850
31.29	851	)))
4.2	852
	853
64.5	854	== 6.2 AT Command input doesn't work ==
4.2	855
31.30	856	(((
64.5	857	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	858
65.23	859
31.30	860	)))
4.2	861
	862
64.5	863	= 7. Order Info =
4.2	864
	865
115.12	866	Part Number: (% style="color:#4f81bd" %)N95S31B-YY
4.7	867
4.2	868
31.10	869	(% class="wikigeneratedid" %)
	870	(((
	871
	872	)))
	873
65.2	874	= 8. Packing Info =
4.2	875
4.3	876	(((
31.39	877
	878
31.40	879	(% style="color:#037691" %)Package Includes:
64.5	880
115.12	881	* N95S31B NB-IoT Temperature and Humidity Sensor
64.5	882	* External antenna x 1
4.3	883	)))
4.2	884
4.3	885	(((
31.40	886
	887
	888	(% style="color:#037691" %)Dimension and weight:
4.2	889
95.3	890	* Device Size: 13.0 x 5 x 4.5 cm
	891	* Device Weight: 150g
115.13	892	* Package Size / pcs : 14.0 x 8x 5 cm
	893	* Weight / pcs : 180g
4.3	894	)))
31.11	895
64.5	896	(((
31.11	897
64.5	898
	899
	900
4.3	901	)))
4.2	902
64.5	903	= 9. Support =
4.2	904
	905	* 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.
	906	* 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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