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

Version 56.16 by Xiaoling on 2023/05/23 17:49

version	line-number	content
3.1	1	(% style="text-align:center" %)
50.2	2	[[image:)YK]Y_LZJIO]J2~~VA}OQJM2.png\|\|height="442" width="410"]]
10.1	3
44.3	4	Table of Contents:
44.2	5
	6	{{toc/}}
	7
	8
	9
50.3	10	= 1. Introduction =
10.1	11
50.3	12	== 1.1 What is NSPH01 Soil pH Sensor ==
10.1	13
	14
56.10	15	(((
50.3	16	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	17	)))
10.1	18
56.10	19	(((
50.3	20	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	21	)))
50.2	22
56.10	23	(((
10.1	24	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	25	)))
10.1	26
56.10	27	(((
56.4	28	NSPH01 supports different uplink methods include (% style="color:blue" %)TCP,MQTT,UDP and CoAP (%%)for different application requirement.
56.10	29	)))
50.3	30
56.10	31	(((
56.4	32	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	33	)))
56.4	34
56.10	35	(((
56.4	36	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	37	)))
56.4	38
	39
34.1	40	[[image:image-20220907153151-1.png]]
	41
50.3	42
34.1	43	[[image:M_K`YF9`CAYAE\@}3T]FHT$9.png]]
	44
	45
50.3	46	== 1.2 Features ==
	47
	48
34.1	49	* NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
	50	* Monitor soil pH with temperature compensation.
	51	* Monitor soil temperature
46.1	52	* pH and Temperature alarm function
34.1	53	* Monitor Battery Level
	54	* Support pH calibration by end user
	55	* Uplink on periodically
	56	* Downlink to change configure
	57	* IP66 Waterproof Enclosure
	58	* IP68 rate for the Sensor Probe
	59	* Ultra-Low Power consumption
	60	* AT Commands to change parameters
46.1	61	* Micro SIM card slot
34.1	62	* 8500mAh Battery for long term use
	63
44.1	64	== 1.3 Specification ==
34.1	65
	66
50.3	67	(% style="color:#037691" %)Common DC Characteristics:
	68
34.1	69	* Supply Voltage: 2.1v ~~ 3.6v
	70	* Operating Temperature: -40 ~~ 85°C
	71
50.3	72	(% style="color:#037691" %)NB-IoT Spec:
	73
56.9	74	* B1 @H-FDD: 2100MHz
	75	* B3 @H-FDD: 1800MHz
	76	* B8 @H-FDD: 900MHz
	77	* B5 @H-FDD: 850MHz
	78	* B20 @H-FDD: 800MHz
	79	* B28 @H-FDD: 700MHz
34.1	80
50.3	81	== 1.4 Probe Specification ==
	82
	83
	84	(% style="color:#037691" %)Soil pH:
	85
34.1	86	* Range: 3 ~~ 10 pH
	87	* Resolution: 0.01 pH
	88	* Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
	89	* Temperature Compensation Range: 0 ~~ 50℃
	90	* IP68 Protection
	91	* Length: 3.5 meters
	92
50.3	93	(% style="color:#037691" %)Soil Temperature:
	94
34.1	95	* Range -40℃～85℃
	96	* Resolution: 0.1℃
	97	* Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
	98	* IP68 Protection
	99	* Length: 3.5 meters
	100
51.10	101	== 1.5 Applications ==
	102
	103
34.1	104	* Smart Agriculture
	105
51.10	106	== 1.6 Pin mapping and power on ==
	107
	108
34.1	109	[[image:image-20220907153300-2.png]]
	110
	111
44.1	112	= 2. Use NSPH01 to communicate with IoT Server =
34.1	113
44.1	114	== 2.1 How it works ==
34.1	115
50.3	116
34.1	117	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.
	118
	119	The diagram below shows the working flow in default firmware of NSPH01:
	120
50.3	121
34.1	122	[[image:image-20220907153416-3.png]]
	123
50.3	124
44.1	125	== 2.2 Configure the NSPH01 ==
34.1	126
44.1	127	=== 2.2.1 Test Requirement ===
34.1	128
50.3	129
46.1	130	To use NSPH01 in the field, make sure meet below requirements:
34.1	131
	132	* Your local operator has already distributed a NB-IoT Network there.
	133	* The local NB-IoT network used the band that NSPH01 supports.
	134	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
	135
52.2	136	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.
	137
	138
34.1	139	[[image:image-20220907153445-4.png]]
	140
	141
44.1	142	=== 2.2.2 Insert SIM card ===
34.1	143
50.3	144
47.1	145	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	146
51.11	147
34.1	148	[[image:image-20220907153505-5.png]]
	149
50.3	150
44.1	151	=== 2.2.3 Connect USB – TTL to NSPH01 to configure it ===
34.1	152
	153
51.2	154	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	155
	156
51.2	157	(% style="color:blue" %)Connection:
34.1	158
51.2	159	~ (% style="background-color:yellow" %) USB TTL GND <~-~-~-~-> GND(%%)
34.1	160
51.2	161	~ (% style="background-color:yellow" %) USB TTL TXD <~-~-~-~-> UART_RXD(%%)
	162
	163	~ (% style="background-color:yellow" %) USB TTL RXD <~-~-~-~-> UART_TXD(%%)
	164
	165
34.1	166	In the PC, use below serial tool settings:
	167
51.2	168	* Baud: (% style="color:green" %)9600
	169	* Data bits: (% style="color:green" %)8(%%)
	170	* Stop bits: (% style="color:green" %)1
	171	* Parity: (% style="color:green" %)None
	172	* Flow Control: (% style="color:green" %)None
34.1	173
51.2	174	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	175
	176
51.2	177	[[image:image-20220912144017-1.png]]
34.1	178
51.2	179
	180	(% 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]]
	181
	182
44.1	183	=== 2.2.4 Use CoAP protocol to uplink data ===
34.1	184
	185
51.2	186	(% 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	187
	188
51.2	189	(% style="color:blue" %)Use below commands:
	190
	191	* (% style="color:#037691" %)AT+PRO=1 (%%) ~/~/ Set to use CoAP protocol to uplink
	192	* (% style="color:#037691" %)AT+SERVADDR=120.24.4.116,5683 (%%) ~/~/ to set CoAP server address and port
	193	* (% style="color:#037691" %)AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" (%%) ~/~/ Set COAP resource path
	194
34.1	195	For parameter description, please refer to AT command set
	196
51.2	197
34.1	198	[[image:image-20220907153551-7.png\|\|height="502" width="740"]]
	199
	200
51.2	201	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.
	202
	203
34.1	204	[[image:image-20220907153612-8.png\|\|height="529" width="729"]]
	205
	206
44.1	207	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
34.1	208
51.2	209
34.1	210	This feature is supported since firmware version v1.0.1
	211
51.4	212	* (% style="color:blue" %)AT+PRO=2 (%%) ~/~/ Set to use UDP protocol to uplink
	213	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5601 (%%) ~/~/ to set UDP server address and port
	214	* (% style="color:blue" %)AT+CFM=1 (%%) ~/~/ If the server does not respond, this command is unnecessar
	215
34.1	216	[[image:image-20220907153643-9.png\|\|height="401" width="734"]]
	217
51.2	218
34.1	219	[[image:image-20220907153703-10.png\|\|height="309" width="738"]]
	220
	221
44.1	222	=== 2.2.6 Use MQTT protocol to uplink data ===
34.1	223
51.4	224
34.1	225	This feature is supported since firmware version v110
	226
51.4	227	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/ Set to use MQTT protocol to uplink
	228	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/ Set MQTT server address and port
	229	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%) ~/~/ Set up the CLIENT of MQTT
	230	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/ Set the username of MQTT
	231	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/ Set the password of MQTT
	232	* (% style="color:blue" %)AT+PUBTOPIC=NSE01_PUB (%%)~/~/ Set the sending topic of MQTT
	233	* (% style="color:blue" %)AT+SUBTOPIC=NSE01_SUB (%%) ~/~/ Set the subscription topic of MQTT
34.1	234
	235	[[image:image-20220907153739-11.png\|\|height="491" width="764"]]
	236
51.3	237
34.1	238	[[image:image-20220907153751-12.png\|\|height="555" width="769"]]
	239
51.4	240
34.1	241	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.
	242
51.3	243
44.1	244	=== 2.2.7 Use TCP protocol to uplink data ===
34.1	245
51.4	246
34.1	247	This feature is supported since firmware version v110
	248
51.4	249	* (% style="color:blue" %)AT+PRO=4 (%%) ~/~/ Set to use TCP protocol to uplink
	250	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5600 (%%) ~/~/ to set TCP server address and port
34.1	251
	252	[[image:image-20220907153818-13.png\|\|height="486" width="668"]]
	253
51.3	254
34.1	255	[[image:image-20220907153827-14.png\|\|height="236" width="684"]]
	256
51.3	257
44.1	258	=== 2.2.8 Change Update Interval ===
34.1	259
51.5	260
47.1	261	Users can use the below command to change the uplink interval.
34.1	262
51.4	263	* (% style="color:blue" %)AT+TDC=7200 (%%) ~/~/ Set Update Interval to 7200s (2 hour)
34.1	264
51.4	265	(% 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	266
47.1	267
44.1	268	== 2.3 Uplink Payload ==
34.1	269
51.5	270
34.1	271	In this mode, uplink payload includes 87 bytes in total by default.
	272
	273	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.
	274
56.12	275	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:520px" %)
56.14	276	\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)Size(bytes)\|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)8\|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:25px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)1\|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)1\|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)1\|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)4\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:35px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)4
56.16	277	\|(% 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	278
34.1	279	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
	280
	281	[[image:image-20220907153902-15.png\|\|height="581" width="804"]]
	282
	283
52.2	284	(((
34.1	285	The payload is ASCII string, representative same HEX:
52.2	286	)))
34.1	287
52.2	288	(((
	289
	290	)))
34.1	291
52.2	292	(((
	293	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__//(%%)
	294	)))
34.1	295
52.2	296	(((
	297
51.10	298
56.2	299	where:
52.2	300	)))
51.10	301
56.2	302	* (% style="color:#037691" %)Device ID:(%%) 0xf868411056754138 = f868411056754138
52.2	303
56.2	304	* (% style="color:#037691" %)Version: (%%) 0x0064=100=1.0.0
	305
	306	* (% style="color:#037691" %)BAT: (%%) 0x0c78 = 3192 mV = 3.192V
	307
	308	* (% style="color:#037691" %)Singal: (%%)0x17 = 23
	309
	310	* (% style="color:#037691" %)Mod: (%%) 0x01 = 1
	311
	312	* (% style="color:#037691" %)Interrupt:(%%) 0x00= 0
	313
	314	* (% style="color:#037691" %)Soil PH: (%%) 0x0225= 549 = 5.49
	315
	316	* (% style="color:#037691" %)Soil Temperature:(%%) 0x010b =267=26.7 °C
	317
	318	* (% style="color:#037691" %)Time stamp : (%%) 0x6315537b =1662342011 ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
	319
	320	* (% style="color:#037691" %)Soil Temperature,Soil PH,Time stamp : (%%) 010b0226631550fb
	321
	322	* (% style="color:#037691" %)8 sets of recorded data:(%%) Temperature,Soil PH,Time stamp : 010e022663154d77,.......
	323
44.1	324	== 2.4 Payload Explanation and Sensor Interface ==
34.1	325
44.1	326	=== 2.4.1 Device ID ===
34.1	327
51.5	328
34.1	329	By default, the Device ID equal to the last 15 bits of IMEI.
	330
51.4	331	User can use (% style="color:blue" %)AT+DEUI (%%)to set Device ID
34.1	332
51.5	333
34.1	334	Example:
	335
	336	AT+DEUI=868411056754138
	337
	338	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
	339
51.5	340
44.1	341	=== 2.4.2 Version Info ===
34.1	342
51.5	343
34.1	344	Specify the software version: 0x64=100, means firmware version 1.00.
	345
	346	For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
	347
51.5	348
44.1	349	=== 2.4.3 Battery Info ===
34.1	350
51.5	351
34.1	352	Check the battery voltage for NSPH01.
	353
	354	Ex1: 0x0B45 = 2885mV
	355
	356	Ex2: 0x0B49 = 2889mV
	357
51.5	358
44.1	359	=== 2.4.4 Signal Strength ===
34.1	360
51.5	361
34.1	362	NB-IoT Network signal Strength.
	363
	364	Ex1: 0x1d = 29
	365
	366	0 -113dBm or less
	367
	368	1 -111dBm
	369
	370	2...30 -109dBm... -53dBm
	371
	372	31 -51dBm or greater
	373
	374	99 Not known or not detectable
	375
51.5	376
44.1	377	=== 2.4.5 Soil PH ===
34.1	378
51.5	379
34.1	380	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.
	381
51.9	382	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	383
51.9	384	(% style="color:blue" %)0229(H) = 549(D) /100 = 5.49.
34.1	385
51.5	386
44.1	387	=== 2.4.6 Soil Temperature ===
34.1	388
51.5	389
51.9	390	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	391
51.9	392
34.1	393	Example:
	394
40.1	395	If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
34.1	396
40.1	397	If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
34.1	398
51.5	399
44.1	400	=== 2.4.7 Timestamp ===
34.1	401
51.5	402
34.1	403	Time stamp : 0x6315537b =1662342011
	404
	405	Convert Unix timestamp to time 2022-9-5 9:40:11.
	406
51.5	407
44.1	408	=== 2.4.8 Digital Interrupt ===
34.1	409
	410
51.5	411	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.
	412
34.1	413	The command is:
	414
51.5	415	(% 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	416
	417	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.
	418
	419
51.9	420	Example:
	421
34.1	422	0x(00): Normal uplink packet.
	423
	424	0x(01): Interrupt Uplink Packet.
	425
51.5	426
44.1	427	=== 2.4.9 +5V Output ===
34.1	428
51.5	429
34.1	430	NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling.
	431
	432	The 5V output time can be controlled by AT Command.
	433
51.5	434	(% style="color:blue" %)AT+5VT=1000
34.1	435
	436	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	437
	438
44.1	439	== 2.5 Downlink Payload ==
34.1	440
51.5	441
41.1	442	By default, NSPH01 prints the downlink payload to console port.
34.1	443
56.14	444	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:479.818px" %)
	445	\|=(% style="width: 183px; background-color:#D9E2F3;color:#0070C0" %)Downlink Control Type\|=(% style="width: 55px; background-color:#D9E2F3;color:#0070C0" %)FPort\|=(% style="width: 93px; background-color:#D9E2F3;color:#0070C0" %)Type Code\|=(% style="width: 146px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Downlink payload size(bytes)
	446	\|(% style="width:183px" %)TDC (Transmit Time Interval)\|(% style="width:55px" %)Any\|(% style="width:93px" %)01\|(% style="width:146px" %)4
	447	\|(% style="width:183px" %)RESET\|(% style="width:55px" %)Any\|(% style="width:93px" %)04\|(% style="width:146px" %)2
	448	\|(% style="width:183px" %)INTMOD\|(% style="width:55px" %)Any\|(% style="width:93px" %)06\|(% style="width:146px" %)4
34.1	449
51.5	450	(% style="color:blue" %)Examples:
34.1	451
51.5	452	* (% style="color:#037691" %) Set TDC
34.1	453
	454	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	455
	456	Payload: 01 00 00 1E TDC=30S
	457
	458	Payload: 01 00 00 3C TDC=60S
	459
51.5	460	* (% style="color:#037691" %) Reset
34.1	461
42.1	462	If payload = 0x04FF, it will reset the NSPH01
34.1	463
51.5	464	* (% style="color:#037691" %) INTMOD
34.1	465
	466	Downlink Payload: 06000003, Set AT+INTMOD=3
	467
51.5	468
44.1	469	== 2.6 LED Indicator ==
34.1	470
51.5	471
34.1	472	The NSPH01 has an internal LED which is to show the status of different state.
	473
	474	* 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)
	475	* Then the LED will be on for 1 second means device is boot normally.
	476	* After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
	477	* For each uplink probe, LED will be on for 500ms.
	478
51.5	479	== 2.7 Installation and Maintain ==
	480
	481	=== 2.7.1 Before measurement ===
	482
	483
34.1	484	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.
	485
	486
51.5	487	=== 2.7.2 Measurement ===
	488
	489
51.7	490	(% style="color:#037691" %)Measurement the soil surface:
34.1	491
51.5	492
34.1	493	[[image:image-20220907154700-18.png]]
	494
	495	Choose the proper measuring position. Split the surface soil according to the measured deep.
	496
	497	Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
	498
	499	Slowly insert the probe to the measure point. Don't use large force which will break the probe. Make sure not shake when inserting.
	500
	501	Put soil over the probe after insert. And start to measure.
	502
51.5	503
51.7	504	(% style="color:#037691" %)Measurement inside soil:
34.1	505
	506	Dig a hole with diameter > 20CM.
	507
	508	Insert the probe inside, method like measure the surface.
	509
	510
51.5	511	=== 2.7.3 Maintain Probe ===
	512
	513
34.1	514	1. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
	515	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.
	516	1. Probe reference electrode is also no strong, need to avoid strong force or hitting.
	517	1. User should keep reference electrode wet while not use.
	518	1. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
	519	1. The probe is IP68 can be put in water.
	520
51.5	521	== 2.8 PH and Temperature alarm function ==
	522
	523
51.7	524	(% style="color:#037691" %)➢ AT Command:
51.5	525
51.7	526	(% style="color:blue" %)AT+ PHALARM=min,max
51.5	527
34.1	528	² When min=3, and max≠0, Alarm higher than max
	529
	530	² When min≠0, and max=0, Alarm lower than min
	531
	532	² When min≠0 and max≠0, Alarm higher than max or lower than min
	533
	534
51.7	535	(% style="color:blue" %)Example:
34.1	536
51.5	537	AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
	538
34.1	539	AT+ TEMPALARM=min,max
	540
	541	² When min=0, and max≠0, Alarm higher than max
	542
	543	² When min≠0, and max=0, Alarm lower than min
	544
	545	² When min≠0 and max≠0, Alarm higher than max or lower than min
	546
	547
51.7	548	(% style="color:blue" %)Example:
34.1	549
51.5	550	AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
34.1	551
51.5	552
51.7	553	== 2.9 Set the number of data to be uploaded and the recording time ==
34.1	554
	555
51.7	556	(% style="color:#037691" %)➢ AT Command:
34.1	557
51.7	558	* (% 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)
	559	* (% 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	560
54.1	561	The diagram below explains the relationship between TR, NOUD, and TDC more clearly:
47.1	562
56.1	563	[[image:image-20221009000933-1.png\|\|height="750" width="1043"]]
51.5	564
54.1	565
51.7	566	== 2.10 Read or Clear cached data ==
34.1	567
	568
51.7	569	(% style="color:#037691" %)➢ AT Command:
51.5	570
51.7	571	* (% style="color:blue" %)AT+CDP (%%) ~/~/ Read cached data
51.9	572	* (% style="color:blue" %)AT+CDP=0 (%%) ~/~/ Clear cached data
51.5	573
34.1	574	[[image:image-20220907154700-19.png]]
	575
	576
51.5	577	== 2.11 Calibration ==
34.1	578
	579
	580	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).
	581
	582	After stable, user can use below command to calibrate.
	583
56.15	584	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:520px" %)
	585	\|(% style="background-color:#d9e2f3; color:#0070c0; width:120px" %)pH buffer solution\|(% style="background-color:#d9e2f3; color:#0070c0; width:150px" %)AT Command to calibrate\|(% style="background-color:#d9e2f3; color:#0070c0; width:150px" %)Downlink Command\|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)Read Cal Value
	586	\|(% style="width:149px" %)4.00\|(% style="width:197px" %)AT+PHCAL=4\|(% style="width:206px" %)(((
	587	0x13 04
	588	Reply with Calibrate payload
	589	)))\|(% style="width:136px" %)(((
	590	AT+PHCAL=?
	591	Example 41,61,91
	592	)))
	593	\|(% style="width:149px" %)6.86\|(% style="width:197px" %)AT+PHCAL=6\|(% style="width:206px" %)(((
	594	0x13 06
	595	Reply with Calibrate payload
	596	)))\|(% style="width:136px" %)AT+PHCAL=?
	597	\|(% style="width:149px" %)9.18\|(% style="width:197px" %)AT+PHCAL=9\|(% style="width:206px" %)(((
	598	0x13 09
	599	Reply with Calibrate payload
	600	)))\|(% style="width:136px" %)AT+PHCAL=?
	601	\|(% style="width:149px" %)Factory Default\|(% style="width:197px" %)AT+PHCAL=15\|(% style="width:206px" %)(((
	602	0x13 15
	603	Reply with Calibrate payload
	604	)))\|(% style="width:136px" %)(((
	605	AT+PHCAL=?
	606	Example 151
	607	)))
51.5	608
56.15	609
34.1	610
51.5	611
44.1	612	== 2.12 Firmware Change Log ==
34.1	613
51.5	614
51.11	615	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	616
51.7	617	Upgrade Instruction: [[Upgrade Firmware>>\|\|anchor="H5.1200BHowtoUpgradeFirmware"]]
34.1	618
51.5	619
56.9	620	== 2.13 Battery & Power Consumption ==
51.5	621
34.1	622
56.9	623	NSPH01 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
51.5	624
56.9	625	[[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	626
51.5	627
44.1	628	= 3. Access NB-IoT Module =
34.1	629
51.5	630
34.1	631	Users can directly access the AT command set of the NB-IoT module.
	632
	633	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/]]
	634
51.5	635
34.1	636	[[image:image-20220907154700-23.png]]
	637
	638
	639
44.1	640	= 4. Using the AT Commands =
34.1	641
44.1	642	== 4.1 Access AT Commands ==
34.1	643
51.5	644
34.1	645	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]]
	646
	647	AT+<CMD>? : Help on <CMD>
	648
	649	AT+<CMD> : Run <CMD>
	650
	651	AT+<CMD>=<value> : Set the value
	652
	653	AT+<CMD>=? : Get the value
	654
51.5	655
51.7	656	(% style="color:#037691" %)General Commands
34.1	657
	658	AT : Attention
	659
	660	AT? : Short Help
	661
	662	ATZ : MCU Reset
	663
	664	AT+TDC : Application Data Transmission Interval
	665
	666	AT+CFG : Print all configurations
	667
	668	AT+CFGMOD : Working mode selection
	669
	670	AT+INTMOD : Set the trigger interrupt mode
	671
	672	AT+5VT : Set extend the time of 5V power
	673
	674	AT+PRO : Choose agreement
	675
	676	AT+RXDL : Extend the sending and receiving time
	677
	678	AT+SERVADDR : Server Address
	679
	680	AT+TR : Get or Set record time"
	681
50.1	682	AT+APN : Get or set the APN
34.1	683
50.1	684	AT+FBAND : Get or Set whether to automatically modify the frequency band
	685
	686	AT+DNSCFG : Get or Set DNS Server
	687
	688	AT+GETSENSORVALUE : Returns the current sensor measurement
	689
34.1	690	AT+NOUD : Get or Set the number of data to be uploaded
	691
	692	AT+CDP : Read or Clear cached data
	693
	694	AT+TEMPALARM : Get or Set alarm of temp
	695
	696	AT+PHALARM : Get or Set alarm of PH
	697
	698	AT+ PHCAL : calibrate PH value
	699
	700
51.7	701	(% style="color:#037691" %)COAP Management
34.1	702
	703	AT+URI : Resource parameters
	704
51.5	705
51.7	706	(% style="color:#037691" %)UDP Management
34.1	707
	708	AT+CFM : Upload confirmation mode (only valid for UDP)
	709
51.5	710
51.7	711	(% style="color:#037691" %)MQTT Management
34.1	712
	713	AT+CLIENT : Get or Set MQTT client
	714
	715	AT+UNAME : Get or Set MQTT Username
	716
	717	AT+PWD : Get or Set MQTT password
	718
	719	AT+PUBTOPIC : Get or Set MQTT publish topic
	720
	721	AT+SUBTOPIC : Get or Set MQTT subscription topic
	722
51.5	723
51.7	724	(% style="color:#037691" %)Information
34.1	725
	726	AT+FDR : Factory Data Reset
	727
	728	AT+PWORD : Serial Access Password
	729
51.5	730
44.1	731	= 5. FAQ =
34.1	732
44.1	733	== 5.1 How to Upgrade Firmware ==
34.1	734
51.5	735
34.1	736	User can upgrade the firmware for 1) bug fix, 2) new feature release.
	737
	738	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]]
	739
51.8	740	(% style="color:red" %)Notice, NSPH01 and LSPH01 share the same mother board. They use the same connection and method to update.
34.1	741
51.5	742
44.1	743	== 5.2 Can I calibrate NSPH01 to different soil types? ==
34.1	744
51.5	745
34.1	746	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]].
	747
51.5	748
44.1	749	= 6. Trouble Shooting =
34.1	750
44.1	751	== 6.1 Connection problem when uploading firmware ==
34.1	752
51.5	753
34.1	754	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]]
	755
51.5	756
44.1	757	== 6.2 AT Command input doesn't work ==
34.1	758
	759
51.7	760	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	761
	762
56.11	763	== 6.3 Not able to connect to NB-IoT network and keep showing "Signal Strength:99". ==
	764
	765
	766	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]]//.
	767
	768
44.1	769	= 7. Order Info =
34.1	770
51.5	771
34.1	772	Part Number: NSPH01
	773
51.5	774
44.1	775	= 8. Packing Info =
34.1	776
51.5	777
34.1	778	Package Includes:
	779
47.1	780	* NSPH01 NB-IoT pH Sensor x 1
34.1	781	* External antenna x 1
	782
	783	Dimension and weight:
	784
51.10	785	* Device Size: cm
	786	* Device Weight: g
	787	* Package Size / pcs : cm
	788	* Weight / pcs : g
34.1	789
44.1	790	= 9. Support =
34.1	791
51.5	792
34.1	793	* 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.
	794	* 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]]
	795
	796

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

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