Wiki source code of NDDS75 NB-IoT Distance Detect Sensor User Manual

Version 98.1 by Xiaoling on 2022/07/11 14:09

version	line-number	content
74.2	1	(% style="text-align:center" %)
	2	[[image:image-20220709085040-1.png\|\|height="542" width="524"]]
1.1	3
	4
	5
35.25	6
	7
35.4	8	Table of Contents:
1.1	9
95.4	10	{{toc/}}
1.1	11
	12
	13
	14
31.17	15
65.3	16
44.2	17	= 1. Introduction =
1.1	18
67.2	19	== 1.1 What is NDDS75 Distance Detection Sensor ==
1.1	20
12.2	21	(((
35.4	22
	23
65.9	24	(((
97.14	25	(((
68.2	26	The Dragino NDDS75 is a (% style="color:blue" %)NB-IoT Distance Detection Sensor(%%) for Internet of Things solution. It is designed to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses ultrasonic sensing technology for distance measurement, and temperature compensation is performed internally to improve the reliability of data.
97.14	27	)))
97.13	28
97.14	29	(((
97.13	30	The NDDS75 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc. It detects the distance between the measured object and the sensor, and uploads the value via wireless to IoT Server via NB-IoT Network.
97.14	31	)))
97.13	32
97.14	33	(((
97.13	34	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.
97.14	35	)))
97.13	36
97.14	37	(((
97.13	38	NDDS75 supports different uplink methods include (% style="color:blue" %)TCP, MQTT, UDP and CoAP (%%)for different application requirement.
97.14	39	)))
97.13	40
97.14	41	(((
97.13	42	NDDS75 is powered by (% style="color:blue" %)8500mAh Li-SOCI2 battery(%%), It is designed for long term use up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method)
97.14	43	)))
97.13	44
97.14	45	(((
97.13	46	To use NDDS75, user needs to check if there is NB-IoT coverage in local area and with the bands NDDS75 supports. If the local operate support it, user needs to get a NB-IoT SIM card from local operator and install NDDS75 to get NB-IoT network connection.
65.9	47	)))
97.14	48	)))
4.2	49
42.2	50
12.2	51	)))
4.2	52
75.2	53	[[image:1657327959271-447.png]]
4.2	54
	55
	56
65.3	57	== 1.2 Features ==
13.3	58
44.2	59	* NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
75.3	60	* Ultra low power consumption
	61	* Distance Detection by Ultrasonic technology
	62	* Flat object range 280mm - 7500mm
	63	* Accuracy: ±(1cm+S*0.3%) (S: Distance)
	64	* Cable Length: 25cm
4.2	65	* AT Commands to change parameters
	66	* Uplink on periodically
	67	* Downlink to change configure
	68	* IP66 Waterproof Enclosure
44.2	69	* Micro SIM card slot for NB-IoT SIM
	70	* 8500mAh Battery for long term use
4.2	71
98.1	72
	73
44.2	74	== 1.3 Specification ==
	75
	76	(% style="color:#037691" %)Common DC Characteristics:
	77
	78	* Supply Voltage: 2.1v ~~ 3.6v
	79	* Operating Temperature: -40 ~~ 85°C
	80
	81	(% style="color:#037691" %)NB-IoT Spec:
	82
	83	* - B1 @H-FDD: 2100MHz
	84	* - B3 @H-FDD: 1800MHz
	85	* - B8 @H-FDD: 900MHz
	86	* - B5 @H-FDD: 850MHz
	87	* - B20 @H-FDD: 800MHz
	88	* - B28 @H-FDD: 700MHz
	89
75.3	90	(% style="color:#037691" %)Battery:
4.2	91
75.3	92	* Li/SOCI2 un-chargeable battery
	93	* Capacity: 8500mAh
	94	* Self Discharge: <1% / Year @ 25°C
	95	* Max continuously current: 130mA
	96	* Max boost current: 2A, 1 second
14.2	97
75.3	98	(% style="color:#037691" %)Power Consumption
4.2	99
75.3	100	* STOP Mode: 10uA @ 3.3v
98.1	101	* Max transmit power: [[350mA@3.3v>>mailto:350mA@3.3v]]
75.3	102
98.1	103
	104
44.2	105	== 1.4 Applications ==
4.2	106
75.4	107	* Smart Buildings & Home Automation
	108	* Logistics and Supply Chain Management
	109	* Smart Metering
4.2	110	* Smart Agriculture
75.4	111	* Smart Cities
	112	* Smart Factory
4.2	113
15.6	114	(% class="wikigeneratedid" id="H200B1.5FirmwareChangelog" %)
	115
4.2	116
75.4	117
44.2	118	== 1.5 Pin Definitions ==
15.6	119
	120
76.2	121	[[image:1657328609906-564.png]]
4.2	122
14.3	123
	124
81.2	125	= 2. Use NDDS75 to communicate with IoT Server =
14.3	126
45.2	127	== 2.1 How it works ==
14.3	128
15.3	129	(((
77.2	130	The NDDS75 is equipped with a NB-IoT module, the pre-loaded firmware in NDDS75 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 NDDS75.
15.3	131	)))
4.2	132
45.2	133
15.3	134	(((
77.2	135	The diagram below shows the working flow in default firmware of NDDS75:
15.3	136	)))
4.2	137
77.2	138	(((
	139
	140	)))
4.2	141
77.2	142	[[image:1657328659945-416.png]]
	143
45.2	144	(((
	145
	146	)))
4.2	147
45.2	148
81.2	149	== 2.2 Configure the NDDS75 ==
4.2	150
48.2	151
45.4	152	=== 2.2.1 Test Requirement ===
4.2	153
65.10	154	(((
81.2	155	To use NDDS75 in your city, make sure meet below requirements:
65.10	156	)))
4.2	157
45.4	158	* Your local operator has already distributed a NB-IoT Network there.
97.22	159	* The local NB-IoT network used the band that NDDS75 supports.
45.4	160	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
4.2	161
48.2	162	(((
81.2	163	Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8. The NDDS75 will use CoAP((% style="color:red" %)120.24.4.116:5683)(%%) or raw UDP((% style="color:red" %)120.24.4.116:5601)(%%) or MQTT((% style="color:red" %)120.24.4.116:1883)(%%)or TCP((% style="color:red" %)120.24.4.116:5600)(%%)protocol to send data to the test server
48.2	164	)))
4.2	165
	166
81.2	167	[[image:1657328756309-230.png]]
4.2	168
	169
	170
45.5	171	=== 2.2.2 Insert SIM card ===
4.2	172
65.11	173	(((
45.4	174	Insert the NB-IoT Card get from your provider.
65.11	175	)))
4.2	176
65.11	177	(((
45.4	178	User need to take out the NB-IoT module and insert the SIM card like below:
65.11	179	)))
4.2	180
	181
81.2	182	[[image:1657328884227-504.png]]
4.2	183
	184
48.2	185
81.2	186	=== 2.2.3 Connect USB – TTL to NDDS75 to configure it ===
4.2	187
48.2	188	(((
	189	(((
81.2	190	User need to configure NDDS75 via serial port to set the (% style="color:blue" %)Server Address / Uplink Topic (%%)to define where and how-to uplink packets. NDDS75 support AT Commands, user can use a USB to TTL adapter to connect to NDDS75 and use AT Commands to configure it, as below.
48.2	191	)))
	192	)))
19.2	193
81.2	194	[[image:image-20220709092052-2.png]]
4.2	195
48.2	196	Connection:
4.2	197
45.6	198	(% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND
4.2	199
45.6	200	(% style="background-color:yellow" %)USB TTL TXD <~-~-~-~-> UART_RXD
4.2	201
45.6	202	(% style="background-color:yellow" %)USB TTL RXD <~-~-~-~-> UART_TXD
4.2	203
	204
45.4	205	In the PC, use below serial tool settings:
	206
57.4	207	* Baud: (% style="color:green" %)9600
48.2	208	* Data bits: (% style="color:green" %)8(%%)
	209	* Stop bits: (% style="color:green" %)1
57.4	210	* Parity: (% style="color:green" %)None
48.2	211	* Flow Control: (% style="color:green" %)None
45.4	212
48.2	213	(((
81.2	214	Make sure the switch is in FLASH position, then power on device by connecting the jumper on NDDS75. NDDS75 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	215	)))
45.4	216
81.2	217	[[image:1657329814315-101.png]]
45.4	218
65.12	219	(((
81.2	220	(% style="color:red" %)Note: the valid AT Commands can be found at: (%%)[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/]]
65.12	221	)))
45.4	222
	223
	224
48.2	225	=== 2.2.4 Use CoAP protocol to uplink data ===
45.4	226
56.2	227	(% 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	228
	229
97.9	230	(((
50.2	231	Use below commands:
97.9	232	)))
45.4	233
97.9	234	* (((
	235	(% style="color:blue" %)AT+PRO=1 (%%) ~/~/ Set to use CoAP protocol to uplink
	236	)))
	237	* (((
	238	(% style="color:blue" %)AT+SERVADDR=120.24.4.116,5683 (%%)~/~/ to set CoAP server address and port
	239	)))
	240	* (((
	241	(% style="color:blue" %)AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" (%%) ~/~/Set COAP resource path
	242	)))
45.4	243
97.9	244	(((
45.4	245	For parameter description, please refer to AT command set
97.9	246	)))
45.4	247
86.2	248	[[image:1657330452568-615.png]]
45.4	249
	250
97.10	251	(((
86.2	252	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	253	)))
45.4	254
86.2	255	[[image:1657330472797-498.png]]
45.4	256
	257
50.2	258
45.6	259	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
45.4	260
	261
97.5	262	* (% style="color:blue" %)AT+PRO=2 (%%) ~/~/ Set to use UDP protocol to uplink
48.2	263	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5601 (%%) ~/~/ to set UDP server address and port
97.5	264	* (% style="color:blue" %)AT+CFM=1 (%%) ~/~/ If the server does not respond, this command is unnecessary
45.4	265
86.2	266	[[image:1657330501006-241.png]]
45.4	267
	268
86.2	269	[[image:1657330533775-472.png]]
45.4	270
52.3	271
86.2	272
45.7	273	=== 2.2.6 Use MQTT protocol to uplink data ===
45.4	274
	275
97.11	276	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/Set to use MQTT protocol to uplink
	277	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/Set MQTT server address and port
	278	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%)~/~/Set up the CLIENT of MQTT
97.13	279	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/Set the username of MQTT
	280	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/Set the password of MQTT
89.2	281	* (% style="color:blue" %)AT+PUBTOPIC=NDDS75_PUB (%%)~/~/Set the sending topic of MQTT
	282	* (% style="color:blue" %)AT+SUBTOPIC=NDDS75_SUB (%%) ~/~/Set the subscription topic of MQTT
45.4	283
54.2	284	[[image:1657249978444-674.png]]
45.4	285
54.2	286
89.2	287	[[image:1657330723006-866.png]]
54.2	288
45.4	289
54.3	290	(((
45.4	291	MQTT protocol has a much higher power consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.
54.3	292	)))
45.4	293
	294
54.3	295
45.7	296	=== 2.2.7 Use TCP protocol to uplink data ===
45.4	297
	298
56.2	299	* (% style="color:blue" %)AT+PRO=4 (%%) ~/~/ Set to use TCP protocol to uplink
48.2	300	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5600 (%%) ~/~/ to set TCP server address and port
45.4	301
89.2	302	[[image:image-20220709093918-1.png]]
45.4	303
	304
89.2	305	[[image:image-20220709093918-2.png]]
45.4	306
57.6	307
89.2	308
45.7	309	=== 2.2.8 Change Update Interval ===
45.4	310
48.2	311	User can use below command to change the (% style="color:green" %)uplink interval.
45.4	312
56.3	313	* (% style="color:blue" %)AT+TDC=600 (%%)~/~/ Set Update Interval to 600s
45.4	314
56.3	315	(((
48.2	316	(% style="color:red" %)NOTE:
56.3	317	)))
45.4	318
56.3	319	(((
45.7	320	(% style="color:red" %)1. By default, the device will send an uplink message every 1 hour.
56.3	321	)))
45.4	322
	323
	324
57.2	325	== 2.3 Uplink Payload ==
4.2	326
90.2	327	In this mode, uplink payload includes in total 14 bytes
32.9	328
90.2	329
97.16	330	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %)
97.12	331	\|=(% style="width: 60px;" %)(((
57.2	332	Size(bytes)
97.15	333	)))\|=(% style="width: 60px;" %)6\|=(% style="width: 35px;" %)2\|=(% style="width: 35px;" %)2\|=(% style="width: 80px;" %)1\|=(% style="width: 100px;" %)2\|=(% style="width: 60px;" %)1
97.2	334	\|(% 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:120px" %)[[Distance (unit: mm)>>\|\|anchor="H2.4.5A0Distance"]]\|(% style="width:80px" %)[[Interrupt>>\|\|anchor="H2.4.6A0DigitalInterrupt"]]
57.2	335
65.13	336	(((
90.2	337	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NDDS751 uplink data.
65.13	338	)))
57.2	339
	340
90.2	341	[[image:1657331036973-987.png]]
57.2	342
90.2	343	(((
57.2	344	The payload is ASCII string, representative same HEX:
90.2	345	)))
57.2	346
90.2	347	(((
	348	0x72403155615900640c6c19029200 where:
	349	)))
57.2	350
90.2	351	* (((
	352	Device ID: 0x724031556159 = 724031556159
	353	)))
	354	* (((
	355	Version: 0x0064=100=1.0.0
	356	)))
57.2	357
90.2	358	* (((
	359	BAT: 0x0c6c = 3180 mV = 3.180V
	360	)))
	361	* (((
	362	Signal: 0x19 = 25
	363	)))
	364	* (((
	365	Distance: 0x0292= 658 mm
	366	)))
	367	* (((
	368	Interrupt: 0x00 = 0
95.5	369
	370
	371
	372
90.2	373	)))
57.2	374
57.3	375	== 2.4 Payload Explanation and Sensor Interface ==
4.2	376
57.7	377
57.5	378	=== 2.4.1 Device ID ===
4.2	379
65.13	380	(((
57.3	381	By default, the Device ID equal to the last 6 bytes of IMEI.
65.13	382	)))
4.2	383
65.13	384	(((
57.4	385	User can use (% style="color:blue" %)AT+DEUI(%%) to set Device ID
65.13	386	)))
4.2	387
65.13	388	(((
57.3	389	Example:
65.13	390	)))
4.2	391
65.13	392	(((
57.3	393	AT+DEUI=A84041F15612
65.13	394	)))
4.2	395
65.13	396	(((
91.1	397	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
65.13	398	)))
22.2	399
4.2	400
	401
57.5	402	=== 2.4.2 Version Info ===
	403
65.13	404	(((
57.3	405	Specify the software version: 0x64=100, means firmware version 1.00.
65.13	406	)))
4.2	407
65.13	408	(((
91.1	409	For example: 0x00 64 : this device is NDDS75 with firmware version 1.0.0.
65.13	410	)))
4.2	411
	412
57.3	413
57.5	414	=== 2.4.3 Battery Info ===
22.2	415
32.10	416	(((
4.2	417	Ex1: 0x0B45 = 2885mV
32.10	418	)))
4.2	419
32.10	420	(((
4.2	421	Ex2: 0x0B49 = 2889mV
32.10	422	)))
4.2	423
	424
	425
57.6	426	=== 2.4.4 Signal Strength ===
4.2	427
65.13	428	(((
57.6	429	NB-IoT Network signal Strength.
65.13	430	)))
57.6	431
65.13	432	(((
57.6	433	Ex1: 0x1d = 29
65.13	434	)))
57.6	435
65.13	436	(((
57.6	437	(% style="color:blue" %)0(%%) -113dBm or less
65.13	438	)))
57.6	439
65.13	440	(((
57.6	441	(% style="color:blue" %)1(%%) -111dBm
65.13	442	)))
57.6	443
65.13	444	(((
57.6	445	(% style="color:blue" %)2...30(%%) -109dBm... -53dBm
65.13	446	)))
57.6	447
65.13	448	(((
57.6	449	(% style="color:blue" %)31 (%%) -51dBm or greater
65.13	450	)))
57.6	451
65.13	452	(((
57.6	453	(% style="color:blue" %)99 (%%) Not known or not detectable
65.13	454	)))
57.6	455
	456
	457
95.4	458	=== 2.4.5 Distance ===
57.6	459
91.1	460	Get the distance. Flat object range 280mm - 7500mm.
4.2	461
97.17	462	(((
91.1	463	For example, if the data you get from the register is __0x0B 0x05__, the distance between the sensor and the measured object is
97.17	464	)))
4.2	465
32.10	466	(((
	467	(((
91.4	468	(% style="color:blue" %) 0B05(H) = 2821(D) = 2821mm.
32.10	469	)))
32.11	470	)))
4.2	471
32.11	472	(((
23.2	473
	474	)))
4.2	475
23.2	476	(((
	477
	478	)))
	479
91.1	480	=== 2.4.6 Digital Interrupt ===
23.2	481
65.15	482	(((
91.1	483	Digital Interrupt refers to pin (% style="color:blue" %)GPIO_EXTI(%%), and there are different trigger methods. When there is a trigger, the NDDS75 will send a packet to the server.
65.15	484	)))
4.2	485
65.15	486	(((
57.6	487	The command is:
65.15	488	)))
4.2	489
65.15	490	(((
57.8	491	(% style="color:blue" %)AT+INTMOD=3 (%%) ~/~/(more info about INMOD please refer [[AT Command Manual>>url:https://www.dragino.com/downloads/downloads/NB-IoT/NBSN95/DRAGINO_NBSN95-NB_AT%20Commands_v1.1.0.pdf]]).
65.15	492	)))
4.2	493
	494
65.15	495	(((
65.6	496	The lower four bits of this data field shows if this packet is generated by interrupt or not. Click here for the hardware and software set up.
65.15	497	)))
4.2	498
	499
65.15	500	(((
57.6	501	Example:
65.15	502	)))
4.2	503
65.15	504	(((
57.6	505	0x(00): Normal uplink packet.
65.15	506	)))
4.2	507
65.15	508	(((
57.6	509	0x(01): Interrupt Uplink Packet.
65.15	510	)))
23.2	511
4.2	512
	513
91.1	514	=== 2.4.7 +5V Output ===
4.2	515
65.16	516	(((
91.1	517	NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling.
65.16	518	)))
4.2	519
57.6	520
65.16	521	(((
57.6	522	The 5V output time can be controlled by AT Command.
65.16	523	)))
57.6	524
65.16	525	(((
57.7	526	(% style="color:blue" %)AT+5VT=1000
65.16	527	)))
57.6	528
65.16	529	(((
57.6	530	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
65.16	531	)))
57.6	532
	533
	534
58.2	535	== 2.5 Downlink Payload ==
4.2	536
92.2	537	By default, NDDS75 prints the downlink payload to console port.
4.2	538
92.2	539	[[image:image-20220709100028-1.png]]
4.2	540
	541
32.14	542	(((
40.4	543	(% style="color:blue" %)Examples:
32.14	544	)))
4.2	545
32.14	546	(((
	547
	548	)))
4.2	549
32.14	550	* (((
40.4	551	(% style="color:blue" %)Set TDC
32.14	552	)))
4.2	553
32.14	554	(((
60.2	555	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
32.14	556	)))
4.2	557
32.14	558	(((
4.2	559	Payload: 01 00 00 1E TDC=30S
32.14	560	)))
4.2	561
32.14	562	(((
4.2	563	Payload: 01 00 00 3C TDC=60S
32.14	564	)))
4.2	565
32.14	566	(((
	567
	568	)))
4.2	569
32.14	570	* (((
40.4	571	(% style="color:blue" %)Reset
32.14	572	)))
4.2	573
32.14	574	(((
92.2	575	If payload = 0x04FF, it will reset the NDDS75
32.14	576	)))
4.2	577
	578
60.2	579	* (% style="color:blue" %)INTMOD
4.2	580
65.17	581	(((
60.2	582	Downlink Payload: 06000003, Set AT+INTMOD=3
65.17	583	)))
4.2	584
	585
26.2	586
60.2	587	== 2.6 LED Indicator ==
26.2	588
4.2	589
92.2	590	The NDDS75 has an internal LED which is to show the status of different state.
4.2	591
92.2	592
	593	* 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)
60.2	594	* Then the LED will be on for 1 second means device is boot normally.
92.2	595	* After NDDS75 join NB-IoT network. The LED will be ON for 3 seconds.
60.2	596	* For each uplink probe, LED will be on for 500ms.
92.2	597
	598	(((
	599
32.15	600	)))
4.2	601
	602
	603
92.3	604	== 2.7 Firmware Change Log ==
4.2	605
	606
97.18	607	(((
92.3	608	Download URL & Firmware Change log
97.18	609	)))
4.2	610
60.2	611	(((
92.3	612	[[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/]]
60.2	613	)))
4.2	614
	615
97.18	616	(((
65.6	617	Upgrade Instruction: [[Upgrade_Firmware>>\|\|anchor="H5.1200BHowtoUpgradeFirmware"]]
97.18	618	)))
28.5	619
4.2	620
	621
95.2	622	== 2.8 Battery Analysis ==
4.2	623
95.2	624	=== 2.8.1 Battery Type ===
4.2	625
	626
65.18	627	(((
95.2	628	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.
65.18	629	)))
4.2	630
65.18	631	(((
62.3	632	The battery is designed to last for several years depends on the actually use environment and update interval.
65.18	633	)))
4.2	634
65.18	635	(((
60.2	636	The battery related documents as below:
65.18	637	)))
4.2	638
60.2	639	* [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
65.7	640	* [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
60.2	641	* [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
4.2	642
29.2	643	(((
95.2	644	[[image:image-20220709101450-2.png]]
29.2	645	)))
4.2	646
	647
35.18	648
95.2	649	=== 2.8.2 Power consumption Analyze ===
4.2	650
62.3	651	(((
60.2	652	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.
62.3	653	)))
4.2	654
	655
62.3	656	(((
60.2	657	Instruction to use as below:
62.3	658	)))
4.2	659
62.3	660	(((
	661	(% 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/]]
	662	)))
4.2	663
	664
62.3	665	(((
	666	(% style="color:blue" %)Step 2: (%%) Open it and choose
	667	)))
4.2	668
62.3	669	* (((
	670	Product Model
	671	)))
	672	* (((
	673	Uplink Interval
	674	)))
	675	* (((
	676	Working Mode
	677	)))
4.2	678
62.3	679	(((
60.2	680	And the Life expectation in difference case will be shown on the right.
62.3	681	)))
4.2	682
96.2	683	[[image:image-20220709110451-3.png]]
4.2	684
	685
62.2	686
95.2	687	=== 2.8.3 Battery Note ===
4.2	688
31.6	689	(((
4.2	690	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.
31.3	691	)))
4.2	692
	693
	694
95.2	695	=== 2.8.4 Replace the battery ===
31.2	696
62.2	697	(((
95.2	698	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).
62.2	699	)))
4.2	700
	701
	702
63.2	703	= 3. Access NB-IoT Module =
4.2	704
63.2	705	(((
	706	Users can directly access the AT command set of the NB-IoT module.
	707	)))
	708
	709	(((
64.2	710	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	711	)))
	712
95.2	713	[[image:1657333200519-600.png]]
63.2	714
	715
	716
64.2	717	= 4. Using the AT Commands =
63.2	718
64.2	719	== 4.1 Access AT Commands ==
9.2	720
95.2	721	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/]]
11.4	722
4.2	723
64.2	724	AT+<CMD>? : Help on <CMD>
4.2	725
64.2	726	AT+<CMD> : Run <CMD>
4.2	727
64.2	728	AT+<CMD>=<value> : Set the value
4.2	729
64.2	730	AT+<CMD>=? : Get the value
4.2	731
	732
11.6	733	(% style="color:#037691" %)General Commands(%%)
4.2	734
64.2	735	AT : Attention
4.2	736
64.2	737	AT? : Short Help
4.2	738
64.2	739	ATZ : MCU Reset
4.2	740
64.2	741	AT+TDC : Application Data Transmission Interval
4.2	742
64.2	743	AT+CFG : Print all configurations
4.2	744
64.2	745	AT+CFGMOD : Working mode selection
4.2	746
64.2	747	AT+INTMOD : Set the trigger interrupt mode
4.2	748
64.2	749	AT+5VT : Set extend the time of 5V power
4.2	750
64.2	751	AT+PRO : Choose agreement
4.2	752
64.2	753	AT+WEIGRE : Get weight or set weight to 0
4.2	754
64.2	755	AT+WEIGAP : Get or Set the GapValue of weight
4.2	756
64.2	757	AT+RXDL : Extend the sending and receiving time
4.2	758
64.2	759	AT+CNTFAC : Get or set counting parameters
4.2	760
64.2	761	AT+SERVADDR : Server Address
4.2	762
	763
64.2	764	(% style="color:#037691" %)COAP Management
4.2	765
64.2	766	AT+URI : Resource parameters
4.2	767
	768
64.2	769	(% style="color:#037691" %)UDP Management
4.2	770
64.2	771	AT+CFM : Upload confirmation mode (only valid for UDP)
4.2	772
	773
64.2	774	(% style="color:#037691" %)MQTT Management
4.2	775
64.2	776	AT+CLIENT : Get or Set MQTT client
4.2	777
64.2	778	AT+UNAME : Get or Set MQTT Username
4.2	779
64.2	780	AT+PWD : Get or Set MQTT password
4.2	781
64.2	782	AT+PUBTOPIC : Get or Set MQTT publish topic
4.2	783
64.2	784	AT+SUBTOPIC : Get or Set MQTT subscription topic
4.2	785
	786
64.2	787	(% style="color:#037691" %)Information
4.2	788
64.2	789	AT+FDR : Factory Data Reset
4.2	790
64.2	791	AT+PWORD : Serial Access Password
4.2	792
	793
	794
64.4	795	= 5. FAQ =
4.2	796
64.4	797	== 5.1 How to Upgrade Firmware ==
6.3	798
4.2	799
31.35	800	(((
64.4	801	User can upgrade the firmware for 1) bug fix, 2) new feature release.
31.35	802	)))
4.2	803
31.35	804	(((
64.4	805	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	806	)))
4.2	807
31.35	808	(((
95.2	809	(% style="color:red" %)Notice, NDDS75 and LDDS75 share the same mother board. They use the same connection and method to update.
31.35	810	)))
4.2	811
	812
	813
64.5	814	= 6. Trouble Shooting =
4.2	815
64.5	816	== 6.1 Connection problem when uploading firmware ==
4.9	817
4.2	818
65.20	819	(((
	820	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]]
	821	)))
	822
64.5	823	(% class="wikigeneratedid" %)
31.29	824	(((
65.20	825
31.29	826	)))
4.2	827
	828
64.5	829	== 6.2 AT Command input doesn't work ==
4.2	830
31.30	831	(((
64.5	832	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	833
65.23	834
31.30	835	)))
4.2	836
	837
64.5	838	= 7. Order Info =
4.2	839
	840
95.3	841	Part Number: (% style="color:#4f81bd" %)NSDDS75
4.7	842
4.2	843
31.10	844	(% class="wikigeneratedid" %)
	845	(((
	846
	847	)))
	848
65.2	849	= 8. Packing Info =
4.2	850
4.3	851	(((
31.39	852
	853
31.40	854	(% style="color:#037691" %)Package Includes:
64.5	855
97.20	856	* NDDS75 NB-IoT Distance Detect Sensor Node x 1
64.5	857	* External antenna x 1
4.3	858	)))
4.2	859
4.3	860	(((
31.40	861
	862
	863	(% style="color:#037691" %)Dimension and weight:
4.2	864
95.3	865	* Device Size: 13.0 x 5 x 4.5 cm
	866	* Device Weight: 150g
	867	* Package Size / pcs : 15 x 12x 5.5 cm
	868	* Weight / pcs : 220g
4.3	869	)))
31.11	870
64.5	871	(((
31.11	872
64.5	873
	874
	875
4.3	876	)))
4.2	877
64.5	878	= 9. Support =
4.2	879
	880	* 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.
	881	* 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 NDDS75 NB-IoT Distance Detect Sensor User Manual

Applications