Wiki source code of NSPH01-NB-IoT Soil pH Sensor User Manual

Last modified by Bei Jinggeng on 2024/03/30 17:53

version	line-number	content
56.25	1
	2
3.1	3	(% style="text-align:center" %)
50.2	4	[[image:)YK]Y_LZJIO]J2~~VA}OQJM2.png\|\|height="442" width="410"]]
10.1	5
56.25	6
	7
	8
	9
	10
	11
	12
	13
44.3	14	Table of Contents:
44.2	15
	16	{{toc/}}
	17
	18
	19
50.3	20	= 1. Introduction =
10.1	21
50.3	22	== 1.1 What is NSPH01 Soil pH Sensor ==
10.1	23
	24
56.10	25	(((
50.3	26	The Dragino NSPH01 is a (% style="color:blue" %)NB-IoT soil pH sensor(%%) for IoT of Agriculture. It is designed to measure the soil pH and soil temperature, so to send to the platform to analyze the soil acid or alkali level. The probe is IP68 waterproof.
56.10	27	)))
10.1	28
56.10	29	(((
50.3	30	NSPH01 probe is made by Solid AgCl reference electrode and Pure metal pH sensitive electrode. It can detect soil's (% style="color:blue" %)pH (%%)with high accuracy and stable value. The NSPH01 probe can be buried into soil for long time use.
56.10	31	)))
50.2	32
56.10	33	(((
10.1	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.
56.10	35	)))
10.1	36
56.10	37	(((
56.4	38	NSPH01 supports different uplink methods include (% style="color:blue" %)TCP,MQTT,UDP and CoAP (%%)for different application requirement.
56.10	39	)))
50.3	40
56.10	41	(((
56.4	42	NSPH01 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)
56.10	43	)))
56.4	44
56.10	45	(((
56.4	46	To use NSPH01, user needs to check if there is NB-IoT coverage in the installation area and with the bands NSPH01 supports. If the local operator supports it, user needs to get a (% style="color:blue" %)NB-IoT SIM card (%%)from local operator and install NSPH01 to get NB-IoT network connection.
56.10	47	)))
56.4	48
	49
34.1	50	[[image:image-20220907153151-1.png]]
	51
50.3	52
34.1	53	[[image:M_K`YF9`CAYAE\@}3T]FHT$9.png]]
	54
	55
50.3	56	== 1.2 Features ==
	57
	58
34.1	59	* NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
	60	* Monitor soil pH with temperature compensation.
	61	* Monitor soil temperature
46.1	62	* pH and Temperature alarm function
34.1	63	* Monitor Battery Level
	64	* Support pH calibration by end user
	65	* Uplink on periodically
	66	* Downlink to change configure
	67	* IP66 Waterproof Enclosure
	68	* IP68 rate for the Sensor Probe
	69	* Ultra-Low Power consumption
	70	* AT Commands to change parameters
46.1	71	* Micro SIM card slot
34.1	72	* 8500mAh Battery for long term use
	73
44.1	74	== 1.3 Specification ==
34.1	75
	76
50.3	77	(% style="color:#037691" %)Common DC Characteristics:
	78
34.1	79	* Supply Voltage: 2.1v ~~ 3.6v
	80	* Operating Temperature: -40 ~~ 85°C
	81
50.3	82	(% style="color:#037691" %)NB-IoT Spec:
	83
56.9	84	* B1 @H-FDD: 2100MHz
	85	* B3 @H-FDD: 1800MHz
	86	* B8 @H-FDD: 900MHz
	87	* B5 @H-FDD: 850MHz
	88	* B20 @H-FDD: 800MHz
	89	* B28 @H-FDD: 700MHz
34.1	90
50.3	91	== 1.4 Probe Specification ==
	92
	93
	94	(% style="color:#037691" %)Soil pH:
	95
34.1	96	* Range: 3 ~~ 10 pH
	97	* Resolution: 0.01 pH
	98	* Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
	99	* Temperature Compensation Range: 0 ~~ 50℃
	100	* IP68 Protection
	101	* Length: 3.5 meters
	102
50.3	103	(% style="color:#037691" %)Soil Temperature:
	104
34.1	105	* Range -40℃～85℃
	106	* Resolution: 0.1℃
	107	* Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
	108	* IP68 Protection
	109	* Length: 3.5 meters
	110
51.10	111	== 1.5 Applications ==
	112
	113
34.1	114	* Smart Agriculture
	115
51.10	116	== 1.6 Pin mapping and power on ==
	117
	118
34.1	119	[[image:image-20220907153300-2.png]]
	120
	121
44.1	122	= 2. Use NSPH01 to communicate with IoT Server =
34.1	123
44.1	124	== 2.1 How it works ==
34.1	125
50.3	126
34.1	127	The NSPH01 is equipped with a NB-IoT module, the pre-loaded firmware in NSPH01 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 NSPH01.
	128
	129	The diagram below shows the working flow in default firmware of NSPH01:
	130
50.3	131
34.1	132	[[image:image-20220907153416-3.png]]
	133
50.3	134
44.1	135	== 2.2 Configure the NSPH01 ==
34.1	136
44.1	137	=== 2.2.1 Test Requirement ===
34.1	138
50.3	139
46.1	140	To use NSPH01 in the field, make sure meet below requirements:
34.1	141
	142	* Your local operator has already distributed a NB-IoT Network there.
	143	* The local NB-IoT network used the band that NSPH01 supports.
	144	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
	145
52.2	146	Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8. The NSPH01 will use CoAP(120.24.4.116:5683) or raw UDP(120.24.4.116:5601) or MQTT(120.24.4.116:1883)or TCP(120.24.4.116:5600)protocol to send data to the test server.
	147
	148
34.1	149	[[image:image-20220907153445-4.png]]
	150
	151
44.1	152	=== 2.2.2 Insert SIM card ===
34.1	153
50.3	154
47.1	155	User need to take out the NB-IoT module and insert the SIM card like below. ((% style="color:red" %) Pay attention to the direction(%%))
34.1	156
51.11	157
34.1	158	[[image:image-20220907153505-5.png]]
	159
50.3	160
44.1	161	=== 2.2.3 Connect USB – TTL to NSPH01 to configure it ===
34.1	162
	163
51.2	164	User need to configure NSPH01 via serial port to set the (% style="color:blue" %)Server Address / Uplink Topic(%%) to define where and how-to uplink packets. NSPH01 support AT Commands, user can use a USB to TTL adapter to connect to NSPH01 and use AT Commands to configure it, as below.
34.1	165
	166
51.2	167	(% style="color:blue" %)Connection:
34.1	168
51.2	169	~ (% style="background-color:yellow" %) USB TTL GND <~-~-~-~-> GND(%%)
34.1	170
51.2	171	~ (% style="background-color:yellow" %) USB TTL TXD <~-~-~-~-> UART_RXD(%%)
	172
	173	~ (% style="background-color:yellow" %) USB TTL RXD <~-~-~-~-> UART_TXD(%%)
	174
	175
34.1	176	In the PC, use below serial tool settings:
	177
51.2	178	* Baud: (% style="color:green" %)9600
	179	* Data bits: (% style="color:green" %)8(%%)
	180	* Stop bits: (% style="color:green" %)1
	181	* Parity: (% style="color:green" %)None
	182	* Flow Control: (% style="color:green" %)None
34.1	183
51.2	184	Make sure the switch is in FLASH position, then power on device by connecting the jumper on NSPH01. NSPH01 will output system info once power on as below, we can enter the (% style="color:green" %)password: 12345678(%%) to access AT Command input.
34.1	185
51.2	186	[[image:image-20220912144017-1.png]]
34.1	187
51.2	188	(% style="color:red" %)Note: the valid AT Commands can be found at:(%%) [[https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
	189
	190
44.1	191	=== 2.2.4 Use CoAP protocol to uplink data ===
34.1	192
	193
51.2	194	(% 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/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
34.1	195
	196
51.2	197	(% style="color:blue" %)Use below commands:
	198
	199	* (% style="color:#037691" %)AT+PRO=1 (%%) ~/~/ Set to use CoAP protocol to uplink
	200	* (% style="color:#037691" %)AT+SERVADDR=120.24.4.116,5683 (%%) ~/~/ to set CoAP server address and port
	201	* (% style="color:#037691" %)AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" (%%) ~/~/ Set COAP resource path
	202
34.1	203	For parameter description, please refer to AT command set
	204
51.2	205
34.1	206	[[image:image-20220907153551-7.png\|\|height="502" width="740"]]
	207
	208
51.2	209	After configure the server address and (% style="color:green" %)reset the device (via AT+ATZ )(%%), NSPH01 will start to uplink sensor values to CoAP server.
	210
	211
34.1	212	[[image:image-20220907153612-8.png\|\|height="529" width="729"]]
	213
	214
44.1	215	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
34.1	216
51.2	217
34.1	218	This feature is supported since firmware version v1.0.1
	219
51.4	220	* (% style="color:blue" %)AT+PRO=2 (%%) ~/~/ Set to use UDP protocol to uplink
	221	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5601 (%%) ~/~/ to set UDP server address and port
	222	* (% style="color:blue" %)AT+CFM=1 (%%) ~/~/ If the server does not respond, this command is unnecessar
	223
34.1	224	[[image:image-20220907153643-9.png\|\|height="401" width="734"]]
	225
51.2	226
34.1	227	[[image:image-20220907153703-10.png\|\|height="309" width="738"]]
	228
	229
44.1	230	=== 2.2.6 Use MQTT protocol to uplink data ===
34.1	231
51.4	232
34.1	233	This feature is supported since firmware version v110
	234
51.4	235	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/ Set to use MQTT protocol to uplink
	236	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/ Set MQTT server address and port
	237	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%) ~/~/ Set up the CLIENT of MQTT
	238	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/ Set the username of MQTT
	239	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/ Set the password of MQTT
	240	* (% style="color:blue" %)AT+PUBTOPIC=NSE01_PUB (%%)~/~/ Set the sending topic of MQTT
	241	* (% style="color:blue" %)AT+SUBTOPIC=NSE01_SUB (%%) ~/~/ Set the subscription topic of MQTT
34.1	242
	243	[[image:image-20220907153739-11.png\|\|height="491" width="764"]]
	244
51.3	245
34.1	246	[[image:image-20220907153751-12.png\|\|height="555" width="769"]]
	247
51.4	248
34.1	249	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.
	250
51.3	251
44.1	252	=== 2.2.7 Use TCP protocol to uplink data ===
34.1	253
51.4	254
34.1	255	This feature is supported since firmware version v110
	256
51.4	257	* (% style="color:blue" %)AT+PRO=4 (%%) ~/~/ Set to use TCP protocol to uplink
	258	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5600 (%%) ~/~/ to set TCP server address and port
34.1	259
	260	[[image:image-20220907153818-13.png\|\|height="486" width="668"]]
	261
51.3	262
34.1	263	[[image:image-20220907153827-14.png\|\|height="236" width="684"]]
	264
51.3	265
44.1	266	=== 2.2.8 Change Update Interval ===
34.1	267
51.5	268
47.1	269	Users can use the below command to change the uplink interval.
34.1	270
51.4	271	* (% style="color:blue" %)AT+TDC=7200 (%%) ~/~/ Set Update Interval to 7200s (2 hour)
34.1	272
51.4	273	(% style="color:red" %)NOTE: By default, the device will send an uplink message every 2 hours. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).
34.1	274
47.1	275
44.1	276	== 2.3 Uplink Payload ==
34.1	277
51.5	278
34.1	279	In this mode, uplink payload includes 87 bytes in total by default.
	280
	281	Each time the device uploads a data package, 8 sets of recorded data will be attached. Up to 32 sets of recorded data can be uploaded.
	282
56.19	283	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:515px" %)
56.25	284	\|(% style="background-color:#4f81bd; color:white; width:50px" %)Size(bytes)\|(% style="background-color:#4f81bd; color:white; width:40px" %)8\|(% style="background-color:#4f81bd; color:white; width:20px" %)2\|(% style="background-color:#4f81bd; color:white; width:23px" %)2\|(% style="background-color:#4f81bd; color:white; width:60px" %)1\|(% style="background-color:#4f81bd; color:white; width:20px" %)1\|(% style="background-color:#4f81bd; color:white; width:40px" %)1\|(% style="background-color:#4f81bd; color:white; width:40px" %)2\|(% style="background-color:#4f81bd; color:white; width:51px" %)2\|(% style="background-color:#4f81bd; color:white; width:49px" %)4\|(% style="background-color:#4f81bd; color:white; width:49px" %)2\|(% style="background-color:#4f81bd; color:white; width:34px" %)2\|(% style="background-color:#4f81bd; color:white; width:39px" %)4
56.16	285	\|(% style="width:96px" %)Value\|(% style="width:83px" %)Device ID\|(% style="width:44px" %)Ver\|(% style="width:42px" %)BAT\|(% style="width:124px" %)Signal Strength\|(% style="width:57px" %)MOD\|(% style="width:80px" %)Interrupt\|(% style="width:69px" %)Soil PH\|(% style="width:134px" %)Soil Temperature\|(% style="width:98px" %)Time stamp\|(% style="width:134px" %)Soil Temperature\|(% style="width:68px" %)Soil PH\|(% style="width:125px" %)Time stamp .....
44.1	286
34.1	287	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
	288
	289	[[image:image-20220907153902-15.png\|\|height="581" width="804"]]
	290
	291
52.2	292	(((
34.1	293	The payload is ASCII string, representative same HEX:
52.2	294	)))
34.1	295
52.2	296	(((
	297
	298	)))
34.1	299
52.2	300	(((
	301	0x (% style="color:red" %)__f868411056754138__ (% style="color:blue" %)__0064 __ (% style="color:green" %)__0c78__ (% style="color:#00b0f0" %)__17__ (% style="color:#7030a0" %)__01__ (% style="color:#d60093" %)__00__ (% style="color:#a14d07" %)__0225 __ (% style="color:#0020b0" %) __010b__ (% style="color:#420042" %)__6315537b__ (% style="color:#663300" %)//__010b0226631550fb__ __010e022663154d77 01110225631549f1 011502246315466b 01190223631542e5 011d022163153f62 011e022163153bde 011e022163153859__//(%%)
	302	)))
34.1	303
52.2	304	(((
	305
51.10	306
56.2	307	where:
52.2	308	)))
51.10	309
56.2	310	* (% style="color:#037691" %)Device ID:(%%) 0xf868411056754138 = f868411056754138
52.2	311
56.2	312	* (% style="color:#037691" %)Version: (%%) 0x0064=100=1.0.0
	313
	314	* (% style="color:#037691" %)BAT: (%%) 0x0c78 = 3192 mV = 3.192V
	315
	316	* (% style="color:#037691" %)Singal: (%%)0x17 = 23
	317
	318	* (% style="color:#037691" %)Mod: (%%) 0x01 = 1
	319
	320	* (% style="color:#037691" %)Interrupt:(%%) 0x00= 0
	321
	322	* (% style="color:#037691" %)Soil PH: (%%) 0x0225= 549 = 5.49
	323
	324	* (% style="color:#037691" %)Soil Temperature:(%%) 0x010b =267=26.7 °C
	325
	326	* (% style="color:#037691" %)Time stamp : (%%) 0x6315537b =1662342011 ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
	327
	328	* (% style="color:#037691" %)Soil Temperature,Soil PH,Time stamp : (%%) 010b0226631550fb
	329
	330	* (% style="color:#037691" %)8 sets of recorded data:(%%) Temperature,Soil PH,Time stamp : 010e022663154d77,.......
	331
44.1	332	== 2.4 Payload Explanation and Sensor Interface ==
34.1	333
44.1	334	=== 2.4.1 Device ID ===
34.1	335
51.5	336
34.1	337	By default, the Device ID equal to the last 15 bits of IMEI.
	338
51.4	339	User can use (% style="color:blue" %)AT+DEUI (%%)to set Device ID
34.1	340
51.5	341
34.1	342	Example:
	343
	344	AT+DEUI=868411056754138
	345
	346	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
	347
51.5	348
44.1	349	=== 2.4.2 Version Info ===
34.1	350
51.5	351
34.1	352	Specify the software version: 0x64=100, means firmware version 1.00.
	353
	354	For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
	355
51.5	356
44.1	357	=== 2.4.3 Battery Info ===
34.1	358
51.5	359
34.1	360	Check the battery voltage for NSPH01.
	361
	362	Ex1: 0x0B45 = 2885mV
	363
	364	Ex2: 0x0B49 = 2889mV
	365
51.5	366
44.1	367	=== 2.4.4 Signal Strength ===
34.1	368
51.5	369
34.1	370	NB-IoT Network signal Strength.
	371
	372	Ex1: 0x1d = 29
	373
	374	0 -113dBm or less
	375
	376	1 -111dBm
	377
	378	2...30 -109dBm... -53dBm
	379
	380	31 -51dBm or greater
	381
	382	99 Not known or not detectable
	383
51.5	384
44.1	385	=== 2.4.5 Soil PH ===
34.1	386
51.5	387
34.1	388	Get the PH content of the soil. The value range of the register is 300-1000(Decimal), divide this value by 100 to get the percentage of PH in the soil.
	389
51.9	390	For example, if the data you get from the register is (% style="color:blue" %)__0x05 0xDC__(%%), the PH content in the soil is
34.1	391
51.9	392	(% style="color:blue" %)0229(H) = 549(D) /100 = 5.49.
34.1	393
51.5	394
44.1	395	=== 2.4.6 Soil Temperature ===
34.1	396
51.5	397
51.9	398	Get the temperature in the soil. The value range of the register is -4000 - +800(Decimal), divide this value by 100 to get the temperature in the soil. For example, if the data you get from the register is (% style="color:blue" %)__0x09 0xEC__(%%), the temperature content in the soil is
34.1	399
51.9	400
34.1	401	Example:
	402
40.1	403	If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
34.1	404
40.1	405	If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
34.1	406
51.5	407
44.1	408	=== 2.4.7 Timestamp ===
34.1	409
51.5	410
34.1	411	Time stamp : 0x6315537b =1662342011
	412
	413	Convert Unix timestamp to time 2022-9-5 9:40:11.
	414
51.5	415
44.1	416	=== 2.4.8 Digital Interrupt ===
34.1	417
	418
51.5	419	Digital Interrupt refers to pin (% style="color:blue" %)GPIO_EXTI(%%), and there are different trigger methods. When there is a trigger, the NSPH01 will send a packet to the server.
	420
34.1	421	The command is:
	422
51.5	423	(% 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]]).
34.1	424
	425	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.
	426
	427
51.9	428	Example:
	429
34.1	430	0x(00): Normal uplink packet.
	431
	432	0x(01): Interrupt Uplink Packet.
	433
51.5	434
44.1	435	=== 2.4.9 +5V Output ===
34.1	436
51.5	437
34.1	438	NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling.
	439
	440	The 5V output time can be controlled by AT Command.
	441
51.5	442	(% style="color:blue" %)AT+5VT=1000
34.1	443
	444	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	445
	446
44.1	447	== 2.5 Downlink Payload ==
34.1	448
51.5	449
41.1	450	By default, NSPH01 prints the downlink payload to console port.
34.1	451
56.22	452	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
	453	\|=(% style="width: 183px; background-color:#4F81BD;color:white" %)Downlink Control Type\|=(% style="width: 55px; background-color:#4F81BD;color:white" %)FPort\|=(% style="width: 93px; background-color:#4F81BD;color:white" %)Type Code\|=(% style="width: 179px; background-color:#4F81BD;color:white" %)Downlink payload size(bytes)
56.14	454	\|(% style="width:183px" %)TDC (Transmit Time Interval)\|(% style="width:55px" %)Any\|(% style="width:93px" %)01\|(% style="width:146px" %)4
	455	\|(% style="width:183px" %)RESET\|(% style="width:55px" %)Any\|(% style="width:93px" %)04\|(% style="width:146px" %)2
	456	\|(% style="width:183px" %)INTMOD\|(% style="width:55px" %)Any\|(% style="width:93px" %)06\|(% style="width:146px" %)4
34.1	457
51.5	458	(% style="color:blue" %)Examples:
34.1	459
51.5	460	* (% style="color:#037691" %) Set TDC
34.1	461
	462	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	463
	464	Payload: 01 00 00 1E TDC=30S
	465
	466	Payload: 01 00 00 3C TDC=60S
	467
51.5	468	* (% style="color:#037691" %) Reset
34.1	469
42.1	470	If payload = 0x04FF, it will reset the NSPH01
34.1	471
51.5	472	* (% style="color:#037691" %) INTMOD
34.1	473
	474	Downlink Payload: 06000003, Set AT+INTMOD=3
	475
51.5	476
44.1	477	== 2.6 LED Indicator ==
34.1	478
51.5	479
34.1	480	The NSPH01 has an internal LED which is to show the status of different state.
	481
	482	* When power on, NSPH01 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe)
	483	* Then the LED will be on for 1 second means device is boot normally.
	484	* After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
	485	* For each uplink probe, LED will be on for 500ms.
	486
51.5	487	== 2.7 Installation and Maintain ==
	488
	489	=== 2.7.1 Before measurement ===
	490
	491
34.1	492	If the NSPH01 has more than 7 days not use or just clean the pH probe. User should put the probe inside pure water for more than 24 hours for activation. If no put in water, user need to put inside soil for more than 24 hours to ensure the measurement accuracy.
	493
	494
51.5	495	=== 2.7.2 Measurement ===
	496
	497
51.7	498	(% style="color:#037691" %)Measurement the soil surface:
34.1	499
51.5	500
34.1	501	[[image:image-20220907154700-18.png]]
	502
	503	Choose the proper measuring position. Split the surface soil according to the measured deep.
	504
	505	Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
	506
	507	Slowly insert the probe to the measure point. Don't use large force which will break the probe. Make sure not shake when inserting.
	508
	509	Put soil over the probe after insert. And start to measure.
	510
51.5	511
51.7	512	(% style="color:#037691" %)Measurement inside soil:
34.1	513
	514	Dig a hole with diameter > 20CM.
	515
	516	Insert the probe inside, method like measure the surface.
	517
	518
51.5	519	=== 2.7.3 Maintain Probe ===
	520
	521
34.1	522	1. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
	523	1. After long time use (3~~ 6 months). The probe electrode needs to be clean; user can use high grade sandpaper to polish it or put in 5% hydrochloric acid for several minutes. After the metal probe looks like new, user can use pure water to wash it.
	524	1. Probe reference electrode is also no strong, need to avoid strong force or hitting.
	525	1. User should keep reference electrode wet while not use.
	526	1. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
	527	1. The probe is IP68 can be put in water.
	528
51.5	529	== 2.8 PH and Temperature alarm function ==
	530
	531
51.7	532	(% style="color:#037691" %)➢ AT Command:
51.5	533
51.7	534	(% style="color:blue" %)AT+ PHALARM=min,max
51.5	535
34.1	536	² When min=3, and max≠0, Alarm higher than max
	537
	538	² When min≠0, and max=0, Alarm lower than min
	539
	540	² When min≠0 and max≠0, Alarm higher than max or lower than min
	541
	542
51.7	543	(% style="color:blue" %)Example:
34.1	544
51.5	545	AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
	546
34.1	547	AT+ TEMPALARM=min,max
	548
	549	² When min=0, and max≠0, Alarm higher than max
	550
	551	² When min≠0, and max=0, Alarm lower than min
	552
	553	² When min≠0 and max≠0, Alarm higher than max or lower than min
	554
	555
51.7	556	(% style="color:blue" %)Example:
34.1	557
51.5	558	AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
34.1	559
51.5	560
51.7	561	== 2.9 Set the number of data to be uploaded and the recording time ==
34.1	562
	563
51.7	564	(% style="color:#037691" %)➢ AT Command:
34.1	565
51.7	566	* (% style="color:blue" %)AT+TR=900 (%%) ~/~/ The unit is seconds, and the default is to record data once every 900 seconds.( The minimum can be set to 180 seconds)
	567	* (% style="color:blue" %)AT+NOUD=8 (%%) ~/~/ The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
34.1	568
54.1	569	The diagram below explains the relationship between TR, NOUD, and TDC more clearly:
47.1	570
56.1	571	[[image:image-20221009000933-1.png\|\|height="750" width="1043"]]
51.5	572
54.1	573
51.7	574	== 2.10 Read or Clear cached data ==
34.1	575
	576
51.7	577	(% style="color:#037691" %)➢ AT Command:
51.5	578
51.7	579	* (% style="color:blue" %)AT+CDP (%%) ~/~/ Read cached data
51.9	580	* (% style="color:blue" %)AT+CDP=0 (%%) ~/~/ Clear cached data
51.5	581
34.1	582	[[image:image-20220907154700-19.png]]
	583
	584
51.5	585	== 2.11 Calibration ==
34.1	586
	587
	588	User can do calibration for the probe. It is limited to use below pH buffer solution to calibrate: 4.00, 6.86, 9.18. When calibration, user need to clean the electrode and put the probe in the pH buffer solution to wait the value stable ( a new clean electrode might need max 24 hours to be stable).
	589
	590	After stable, user can use below command to calibrate.
	591
56.20	592	(% border="1" cellspacing="3" style="background-color:#f2f2f2; width:515px" %)
56.25	593	\|(% style="background-color:#4f81bd; color:white; width:118px" %)pH buffer solution\|(% style="background-color:#4f81bd; color:white; width:149px" %)AT Command to calibrate\|(% style="background-color:#4f81bd; color:white; width:149px" %)Downlink Command\|(% style="background-color:#4f81bd; color:white; width:99px" %)Read Cal Value
56.15	594	\|(% style="width:149px" %)4.00\|(% style="width:197px" %)AT+PHCAL=4\|(% style="width:206px" %)(((
	595	0x13 04
	596	Reply with Calibrate payload
	597	)))\|(% style="width:136px" %)(((
	598	AT+PHCAL=?
	599	Example 41,61,91
	600	)))
	601	\|(% style="width:149px" %)6.86\|(% style="width:197px" %)AT+PHCAL=6\|(% style="width:206px" %)(((
	602	0x13 06
	603	Reply with Calibrate payload
	604	)))\|(% style="width:136px" %)AT+PHCAL=?
	605	\|(% style="width:149px" %)9.18\|(% style="width:197px" %)AT+PHCAL=9\|(% style="width:206px" %)(((
	606	0x13 09
	607	Reply with Calibrate payload
	608	)))\|(% style="width:136px" %)AT+PHCAL=?
	609	\|(% style="width:149px" %)Factory Default\|(% style="width:197px" %)AT+PHCAL=15\|(% style="width:206px" %)(((
	610	0x13 15
	611	Reply with Calibrate payload
	612	)))\|(% style="width:136px" %)(((
	613	AT+PHCAL=?
	614	Example 151
	615	)))
51.5	616
56.15	617
34.1	618
51.5	619
44.1	620	== 2.12 Firmware Change Log ==
34.1	621
51.5	622
51.11	623	Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1tv07fro2pvjqj8/AAD-2wbfGfluTZfh38fQqdA_a?dl=0>>https://www.dropbox.com/sh/1tv07fro2pvjqj8/AAD-2wbfGfluTZfh38fQqdA_a?dl=0]]
34.1	624
51.7	625	Upgrade Instruction: [[Upgrade Firmware>>\|\|anchor="H5.1200BHowtoUpgradeFirmware"]]
34.1	626
51.5	627
56.9	628	== 2.13 Battery & Power Consumption ==
51.5	629
34.1	630
56.9	631	NSPH01 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
51.5	632
56.9	633	[[Battery Info & Power Consumption Analyze>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
34.1	634
51.5	635
44.1	636	= 3. Access NB-IoT Module =
34.1	637
51.5	638
34.1	639	Users can directly access the AT command set of the NB-IoT module.
	640
	641	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/]]
	642
51.5	643
34.1	644	[[image:image-20220907154700-23.png]]
	645
	646
	647
44.1	648	= 4. Using the AT Commands =
34.1	649
44.1	650	== 4.1 Access AT Commands ==
34.1	651
51.5	652
34.1	653	See this link for detail: [[https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
	654
	655	AT+<CMD>? : Help on <CMD>
	656
	657	AT+<CMD> : Run <CMD>
	658
	659	AT+<CMD>=<value> : Set the value
	660
	661	AT+<CMD>=? : Get the value
	662
51.5	663
51.7	664	(% style="color:#037691" %)General Commands
34.1	665
	666	AT : Attention
	667
	668	AT? : Short Help
	669
	670	ATZ : MCU Reset
	671
	672	AT+TDC : Application Data Transmission Interval
	673
	674	AT+CFG : Print all configurations
	675
	676	AT+CFGMOD : Working mode selection
	677
	678	AT+INTMOD : Set the trigger interrupt mode
	679
	680	AT+5VT : Set extend the time of 5V power
	681
	682	AT+PRO : Choose agreement
	683
	684	AT+RXDL : Extend the sending and receiving time
	685
	686	AT+SERVADDR : Server Address
	687
	688	AT+TR : Get or Set record time"
	689
50.1	690	AT+APN : Get or set the APN
34.1	691
50.1	692	AT+FBAND : Get or Set whether to automatically modify the frequency band
	693
	694	AT+DNSCFG : Get or Set DNS Server
	695
	696	AT+GETSENSORVALUE : Returns the current sensor measurement
	697
34.1	698	AT+NOUD : Get or Set the number of data to be uploaded
	699
	700	AT+CDP : Read or Clear cached data
	701
	702	AT+TEMPALARM : Get or Set alarm of temp
	703
	704	AT+PHALARM : Get or Set alarm of PH
	705
	706	AT+ PHCAL : calibrate PH value
	707
	708
51.7	709	(% style="color:#037691" %)COAP Management
34.1	710
	711	AT+URI : Resource parameters
	712
51.5	713
51.7	714	(% style="color:#037691" %)UDP Management
34.1	715
	716	AT+CFM : Upload confirmation mode (only valid for UDP)
	717
51.5	718
51.7	719	(% style="color:#037691" %)MQTT Management
34.1	720
	721	AT+CLIENT : Get or Set MQTT client
	722
	723	AT+UNAME : Get or Set MQTT Username
	724
	725	AT+PWD : Get or Set MQTT password
	726
	727	AT+PUBTOPIC : Get or Set MQTT publish topic
	728
	729	AT+SUBTOPIC : Get or Set MQTT subscription topic
	730
51.5	731
51.7	732	(% style="color:#037691" %)Information
34.1	733
	734	AT+FDR : Factory Data Reset
	735
	736	AT+PWORD : Serial Access Password
	737
51.5	738
44.1	739	= 5. FAQ =
34.1	740
44.1	741	== 5.1 How to Upgrade Firmware ==
34.1	742
51.5	743
34.1	744	User can upgrade the firmware for 1) bug fix, 2) new feature release.
	745
	746	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>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList]]
	747
51.8	748	(% style="color:red" %)Notice, NSPH01 and LSPH01 share the same mother board. They use the same connection and method to update.
34.1	749
51.5	750
44.1	751	== 5.2 Can I calibrate NSPH01 to different soil types? ==
34.1	752
51.5	753
34.1	754	NSPH01 is calibrated for saline-alkali soil and loamy soil. If users want to use it for other soil, they can calibrate the value in the IoT platform base on the value measured by saline-alkali soil and loamy soil. The formula can be found at [[this link>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/LSE01/Calibrate_to_other_Soil_20220605.pdf]].
	755
51.5	756
44.1	757	= 6. Trouble Shooting =
34.1	758
44.1	759	== 6.1 Connection problem when uploading firmware ==
34.1	760
51.5	761
34.1	762	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]]
	763
51.5	764
44.1	765	== 6.2 AT Command input doesn't work ==
34.1	766
	767
51.7	768	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.
51.5	769
	770
56.11	771	== 6.3 Not able to connect to NB-IoT network and keep showing "Signal Strength:99". ==
	772
	773
	774	This means sensor is trying to join the NB-IoT network but fail. Please see this link for //[[trouble shooting for signal strenght:99>>doc:Main.CSQ\:99,99.WebHome]]//.
	775
	776
59.1	777	== 6.4 Possible reasons why the device is unresponsive： ==
	778
	779
	780	1. Check whether the battery voltage is lower than 2.8V
	781	2. Check whether the jumper of the device is correctly connected
	782
	783	[[image:image-20240330174534-1.png]]
	784	3. Check whether the switch here of the device is at the ISP（The switch can operate normally only when it is in RUN）
	785
	786	[[image:image-20240330174542-2.png]]
	787
	788
44.1	789	= 7. Order Info =
34.1	790
51.5	791
34.1	792	Part Number: NSPH01
	793
51.5	794
44.1	795	= 8. Packing Info =
34.1	796
51.5	797
34.1	798	Package Includes:
	799
47.1	800	* NSPH01 NB-IoT pH Sensor x 1
34.1	801	* External antenna x 1
	802
	803	Dimension and weight:
	804
51.10	805	* Device Size: cm
	806	* Device Weight: g
	807	* Package Size / pcs : cm
	808	* Weight / pcs : g
34.1	809
44.1	810	= 9. Support =
34.1	811
51.5	812
34.1	813	* 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.
	814	* 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]]
	815
	816

Wiki source code of NSPH01-NB-IoT Soil pH Sensor User Manual

Applications

Navigation