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

Version 56.18 by Xiaoling on 2023/05/23 18:09

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
56.17	64
	65
44.1	66	== 1.3 Specification ==
34.1	67
	68
50.3	69	(% style="color:#037691" %)Common DC Characteristics:
	70
34.1	71	* Supply Voltage: 2.1v ~~ 3.6v
	72	* Operating Temperature: -40 ~~ 85°C
	73
50.3	74	(% style="color:#037691" %)NB-IoT Spec:
	75
56.9	76	* B1 @H-FDD: 2100MHz
	77	* B3 @H-FDD: 1800MHz
	78	* B8 @H-FDD: 900MHz
	79	* B5 @H-FDD: 850MHz
	80	* B20 @H-FDD: 800MHz
	81	* B28 @H-FDD: 700MHz
34.1	82
56.17	83
	84
50.3	85	== 1.4 Probe Specification ==
	86
	87
	88	(% style="color:#037691" %)Soil pH:
	89
34.1	90	* Range: 3 ~~ 10 pH
	91	* Resolution: 0.01 pH
	92	* Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
	93	* Temperature Compensation Range: 0 ~~ 50℃
	94	* IP68 Protection
	95	* Length: 3.5 meters
	96
50.3	97	(% style="color:#037691" %)Soil Temperature:
	98
34.1	99	* Range -40℃～85℃
	100	* Resolution: 0.1℃
	101	* Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
	102	* IP68 Protection
	103	* Length: 3.5 meters
	104
56.17	105
	106
51.10	107	== 1.5 Applications ==
	108
	109
34.1	110	* Smart Agriculture
	111
56.17	112
	113
51.10	114	== 1.6 Pin mapping and power on ==
	115
	116
34.1	117	[[image:image-20220907153300-2.png]]
	118
	119
44.1	120	= 2. Use NSPH01 to communicate with IoT Server =
34.1	121
44.1	122	== 2.1 How it works ==
34.1	123
50.3	124
34.1	125	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.
	126
	127	The diagram below shows the working flow in default firmware of NSPH01:
	128
50.3	129
34.1	130	[[image:image-20220907153416-3.png]]
	131
50.3	132
44.1	133	== 2.2 Configure the NSPH01 ==
34.1	134
44.1	135	=== 2.2.1 Test Requirement ===
34.1	136
50.3	137
46.1	138	To use NSPH01 in the field, make sure meet below requirements:
34.1	139
	140	* Your local operator has already distributed a NB-IoT Network there.
	141	* The local NB-IoT network used the band that NSPH01 supports.
	142	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
	143
52.2	144	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.
	145
	146
34.1	147	[[image:image-20220907153445-4.png]]
	148
	149
44.1	150	=== 2.2.2 Insert SIM card ===
34.1	151
50.3	152
47.1	153	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	154
51.11	155
34.1	156	[[image:image-20220907153505-5.png]]
	157
50.3	158
44.1	159	=== 2.2.3 Connect USB – TTL to NSPH01 to configure it ===
34.1	160
	161
51.2	162	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	163
	164
51.2	165	(% style="color:blue" %)Connection:
34.1	166
51.2	167	~ (% style="background-color:yellow" %) USB TTL GND <~-~-~-~-> GND(%%)
34.1	168
51.2	169	~ (% style="background-color:yellow" %) USB TTL TXD <~-~-~-~-> UART_RXD(%%)
	170
	171	~ (% style="background-color:yellow" %) USB TTL RXD <~-~-~-~-> UART_TXD(%%)
	172
	173
34.1	174	In the PC, use below serial tool settings:
	175
51.2	176	* Baud: (% style="color:green" %)9600
	177	* Data bits: (% style="color:green" %)8(%%)
	178	* Stop bits: (% style="color:green" %)1
	179	* Parity: (% style="color:green" %)None
	180	* Flow Control: (% style="color:green" %)None
34.1	181
51.2	182	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	183
	184
51.2	185	[[image:image-20220912144017-1.png]]
34.1	186
51.2	187
	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
56.12	283	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:520px" %)
56.14	284	\|(% 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	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
56.17	332
	333
44.1	334	== 2.4 Payload Explanation and Sensor Interface ==
34.1	335
44.1	336	=== 2.4.1 Device ID ===
34.1	337
51.5	338
34.1	339	By default, the Device ID equal to the last 15 bits of IMEI.
	340
51.4	341	User can use (% style="color:blue" %)AT+DEUI (%%)to set Device ID
34.1	342
51.5	343
34.1	344	Example:
	345
	346	AT+DEUI=868411056754138
	347
	348	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
	349
51.5	350
44.1	351	=== 2.4.2 Version Info ===
34.1	352
51.5	353
34.1	354	Specify the software version: 0x64=100, means firmware version 1.00.
	355
	356	For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
	357
51.5	358
44.1	359	=== 2.4.3 Battery Info ===
34.1	360
51.5	361
34.1	362	Check the battery voltage for NSPH01.
	363
	364	Ex1: 0x0B45 = 2885mV
	365
	366	Ex2: 0x0B49 = 2889mV
	367
51.5	368
44.1	369	=== 2.4.4 Signal Strength ===
34.1	370
51.5	371
34.1	372	NB-IoT Network signal Strength.
	373
	374	Ex1: 0x1d = 29
	375
	376	0 -113dBm or less
	377
	378	1 -111dBm
	379
	380	2...30 -109dBm... -53dBm
	381
	382	31 -51dBm or greater
	383
	384	99 Not known or not detectable
	385
51.5	386
44.1	387	=== 2.4.5 Soil PH ===
34.1	388
51.5	389
34.1	390	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.
	391
51.9	392	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	393
51.9	394	(% style="color:blue" %)0229(H) = 549(D) /100 = 5.49.
34.1	395
51.5	396
44.1	397	=== 2.4.6 Soil Temperature ===
34.1	398
51.5	399
51.9	400	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	401
51.9	402
34.1	403	Example:
	404
40.1	405	If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
34.1	406
40.1	407	If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
34.1	408
51.5	409
44.1	410	=== 2.4.7 Timestamp ===
34.1	411
51.5	412
34.1	413	Time stamp : 0x6315537b =1662342011
	414
	415	Convert Unix timestamp to time 2022-9-5 9:40:11.
	416
51.5	417
44.1	418	=== 2.4.8 Digital Interrupt ===
34.1	419
	420
51.5	421	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.
	422
34.1	423	The command is:
	424
51.5	425	(% 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	426
	427	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.
	428
	429
51.9	430	Example:
	431
34.1	432	0x(00): Normal uplink packet.
	433
	434	0x(01): Interrupt Uplink Packet.
	435
51.5	436
44.1	437	=== 2.4.9 +5V Output ===
34.1	438
51.5	439
34.1	440	NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling.
	441
	442	The 5V output time can be controlled by AT Command.
	443
51.5	444	(% style="color:blue" %)AT+5VT=1000
34.1	445
	446	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	447
	448
44.1	449	== 2.5 Downlink Payload ==
34.1	450
51.5	451
41.1	452	By default, NSPH01 prints the downlink payload to console port.
34.1	453
56.14	454	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:479.818px" %)
	455	\|=(% 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)
	456	\|(% style="width:183px" %)TDC (Transmit Time Interval)\|(% style="width:55px" %)Any\|(% style="width:93px" %)01\|(% style="width:146px" %)4
	457	\|(% style="width:183px" %)RESET\|(% style="width:55px" %)Any\|(% style="width:93px" %)04\|(% style="width:146px" %)2
	458	\|(% style="width:183px" %)INTMOD\|(% style="width:55px" %)Any\|(% style="width:93px" %)06\|(% style="width:146px" %)4
34.1	459
51.5	460	(% style="color:blue" %)Examples:
34.1	461
51.5	462	* (% style="color:#037691" %) Set TDC
34.1	463
	464	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	465
	466	Payload: 01 00 00 1E TDC=30S
	467
	468	Payload: 01 00 00 3C TDC=60S
	469
51.5	470	* (% style="color:#037691" %) Reset
34.1	471
42.1	472	If payload = 0x04FF, it will reset the NSPH01
34.1	473
51.5	474	* (% style="color:#037691" %) INTMOD
34.1	475
	476	Downlink Payload: 06000003, Set AT+INTMOD=3
	477
51.5	478
44.1	479	== 2.6 LED Indicator ==
34.1	480
51.5	481
34.1	482	The NSPH01 has an internal LED which is to show the status of different state.
	483
	484	* 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)
	485	* Then the LED will be on for 1 second means device is boot normally.
	486	* After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
	487	* For each uplink probe, LED will be on for 500ms.
	488
56.17	489
	490
51.5	491	== 2.7 Installation and Maintain ==
	492
	493	=== 2.7.1 Before measurement ===
	494
	495
34.1	496	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.
	497
	498
51.5	499	=== 2.7.2 Measurement ===
	500
	501
51.7	502	(% style="color:#037691" %)Measurement the soil surface:
34.1	503
51.5	504
34.1	505	[[image:image-20220907154700-18.png]]
	506
	507	Choose the proper measuring position. Split the surface soil according to the measured deep.
	508
	509	Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
	510
	511	Slowly insert the probe to the measure point. Don't use large force which will break the probe. Make sure not shake when inserting.
	512
	513	Put soil over the probe after insert. And start to measure.
	514
51.5	515
51.7	516	(% style="color:#037691" %)Measurement inside soil:
34.1	517
	518	Dig a hole with diameter > 20CM.
	519
	520	Insert the probe inside, method like measure the surface.
	521
	522
51.5	523	=== 2.7.3 Maintain Probe ===
	524
	525
34.1	526	1. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
	527	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.
	528	1. Probe reference electrode is also no strong, need to avoid strong force or hitting.
	529	1. User should keep reference electrode wet while not use.
	530	1. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
	531	1. The probe is IP68 can be put in water.
	532
56.17	533
	534
51.5	535	== 2.8 PH and Temperature alarm function ==
	536
	537
51.7	538	(% style="color:#037691" %)➢ AT Command:
51.5	539
51.7	540	(% style="color:blue" %)AT+ PHALARM=min,max
51.5	541
34.1	542	² When min=3, and max≠0, Alarm higher than max
	543
	544	² When min≠0, and max=0, Alarm lower than min
	545
	546	² When min≠0 and max≠0, Alarm higher than max or lower than min
	547
	548
51.7	549	(% style="color:blue" %)Example:
34.1	550
51.5	551	AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
	552
34.1	553	AT+ TEMPALARM=min,max
	554
	555	² When min=0, and max≠0, Alarm higher than max
	556
	557	² When min≠0, and max=0, Alarm lower than min
	558
	559	² When min≠0 and max≠0, Alarm higher than max or lower than min
	560
	561
51.7	562	(% style="color:blue" %)Example:
34.1	563
51.5	564	AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
34.1	565
51.5	566
51.7	567	== 2.9 Set the number of data to be uploaded and the recording time ==
34.1	568
	569
51.7	570	(% style="color:#037691" %)➢ AT Command:
34.1	571
51.7	572	* (% 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)
	573	* (% 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	574
54.1	575	The diagram below explains the relationship between TR, NOUD, and TDC more clearly:
47.1	576
56.1	577	[[image:image-20221009000933-1.png\|\|height="750" width="1043"]]
51.5	578
54.1	579
51.7	580	== 2.10 Read or Clear cached data ==
34.1	581
	582
51.7	583	(% style="color:#037691" %)➢ AT Command:
51.5	584
51.7	585	* (% style="color:blue" %)AT+CDP (%%) ~/~/ Read cached data
51.9	586	* (% style="color:blue" %)AT+CDP=0 (%%) ~/~/ Clear cached data
51.5	587
34.1	588	[[image:image-20220907154700-19.png]]
	589
	590
51.5	591	== 2.11 Calibration ==
34.1	592
	593
	594	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).
	595
	596	After stable, user can use below command to calibrate.
	597
56.15	598	(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:520px" %)
	599	\|(% 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
	600	\|(% style="width:149px" %)4.00\|(% style="width:197px" %)AT+PHCAL=4\|(% style="width:206px" %)(((
	601	0x13 04
	602	Reply with Calibrate payload
	603	)))\|(% style="width:136px" %)(((
	604	AT+PHCAL=?
	605	Example 41,61,91
	606	)))
	607	\|(% style="width:149px" %)6.86\|(% style="width:197px" %)AT+PHCAL=6\|(% style="width:206px" %)(((
	608	0x13 06
	609	Reply with Calibrate payload
	610	)))\|(% style="width:136px" %)AT+PHCAL=?
	611	\|(% style="width:149px" %)9.18\|(% style="width:197px" %)AT+PHCAL=9\|(% style="width:206px" %)(((
	612	0x13 09
	613	Reply with Calibrate payload
	614	)))\|(% style="width:136px" %)AT+PHCAL=?
	615	\|(% style="width:149px" %)Factory Default\|(% style="width:197px" %)AT+PHCAL=15\|(% style="width:206px" %)(((
	616	0x13 15
	617	Reply with Calibrate payload
	618	)))\|(% style="width:136px" %)(((
	619	AT+PHCAL=?
	620	Example 151
	621	)))
51.5	622
56.15	623
34.1	624
51.5	625
44.1	626	== 2.12 Firmware Change Log ==
34.1	627
51.5	628
51.11	629	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	630
51.7	631	Upgrade Instruction: [[Upgrade Firmware>>\|\|anchor="H5.1200BHowtoUpgradeFirmware"]]
34.1	632
51.5	633
56.9	634	== 2.13 Battery & Power Consumption ==
51.5	635
34.1	636
56.9	637	NSPH01 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
51.5	638
56.9	639	[[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	640
51.5	641
44.1	642	= 3. Access NB-IoT Module =
34.1	643
51.5	644
34.1	645	Users can directly access the AT command set of the NB-IoT module.
	646
	647	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/]]
	648
51.5	649
34.1	650	[[image:image-20220907154700-23.png]]
	651
	652
	653
44.1	654	= 4. Using the AT Commands =
34.1	655
44.1	656	== 4.1 Access AT Commands ==
34.1	657
51.5	658
34.1	659	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]]
	660
	661	AT+<CMD>? : Help on <CMD>
	662
	663	AT+<CMD> : Run <CMD>
	664
	665	AT+<CMD>=<value> : Set the value
	666
	667	AT+<CMD>=? : Get the value
	668
51.5	669
51.7	670	(% style="color:#037691" %)General Commands
34.1	671
	672	AT : Attention
	673
	674	AT? : Short Help
	675
	676	ATZ : MCU Reset
	677
	678	AT+TDC : Application Data Transmission Interval
	679
	680	AT+CFG : Print all configurations
	681
	682	AT+CFGMOD : Working mode selection
	683
	684	AT+INTMOD : Set the trigger interrupt mode
	685
	686	AT+5VT : Set extend the time of 5V power
	687
	688	AT+PRO : Choose agreement
	689
	690	AT+RXDL : Extend the sending and receiving time
	691
	692	AT+SERVADDR : Server Address
	693
	694	AT+TR : Get or Set record time"
	695
50.1	696	AT+APN : Get or set the APN
34.1	697
50.1	698	AT+FBAND : Get or Set whether to automatically modify the frequency band
	699
	700	AT+DNSCFG : Get or Set DNS Server
	701
	702	AT+GETSENSORVALUE : Returns the current sensor measurement
	703
34.1	704	AT+NOUD : Get or Set the number of data to be uploaded
	705
	706	AT+CDP : Read or Clear cached data
	707
	708	AT+TEMPALARM : Get or Set alarm of temp
	709
	710	AT+PHALARM : Get or Set alarm of PH
	711
	712	AT+ PHCAL : calibrate PH value
	713
	714
51.7	715	(% style="color:#037691" %)COAP Management
34.1	716
	717	AT+URI : Resource parameters
	718
51.5	719
51.7	720	(% style="color:#037691" %)UDP Management
34.1	721
	722	AT+CFM : Upload confirmation mode (only valid for UDP)
	723
51.5	724
51.7	725	(% style="color:#037691" %)MQTT Management
34.1	726
	727	AT+CLIENT : Get or Set MQTT client
	728
	729	AT+UNAME : Get or Set MQTT Username
	730
	731	AT+PWD : Get or Set MQTT password
	732
	733	AT+PUBTOPIC : Get or Set MQTT publish topic
	734
	735	AT+SUBTOPIC : Get or Set MQTT subscription topic
	736
51.5	737
51.7	738	(% style="color:#037691" %)Information
34.1	739
	740	AT+FDR : Factory Data Reset
	741
	742	AT+PWORD : Serial Access Password
	743
51.5	744
44.1	745	= 5. FAQ =
34.1	746
44.1	747	== 5.1 How to Upgrade Firmware ==
34.1	748
51.5	749
34.1	750	User can upgrade the firmware for 1) bug fix, 2) new feature release.
	751
	752	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]]
	753
51.8	754	(% style="color:red" %)Notice, NSPH01 and LSPH01 share the same mother board. They use the same connection and method to update.
34.1	755
51.5	756
44.1	757	== 5.2 Can I calibrate NSPH01 to different soil types? ==
34.1	758
51.5	759
34.1	760	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]].
	761
51.5	762
44.1	763	= 6. Trouble Shooting =
34.1	764
44.1	765	== 6.1 Connection problem when uploading firmware ==
34.1	766
51.5	767
34.1	768	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]]
	769
51.5	770
44.1	771	== 6.2 AT Command input doesn't work ==
34.1	772
	773
51.7	774	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	775
	776
56.11	777	== 6.3 Not able to connect to NB-IoT network and keep showing "Signal Strength:99". ==
	778
	779
	780	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]]//.
	781
	782
44.1	783	= 7. Order Info =
34.1	784
51.5	785
34.1	786	Part Number: NSPH01
	787
51.5	788
44.1	789	= 8. Packing Info =
34.1	790
51.5	791
34.1	792	Package Includes:
	793
47.1	794	* NSPH01 NB-IoT pH Sensor x 1
34.1	795	* External antenna x 1
	796
	797	Dimension and weight:
	798
51.10	799	* Device Size: cm
	800	* Device Weight: g
	801	* Package Size / pcs : cm
	802	* Weight / pcs : g
34.1	803
56.17	804
	805
44.1	806	= 9. Support =
34.1	807
51.5	808
34.1	809	* 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.
	810	* 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]]
	811
	812

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

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