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

Version 52.2 by Xiaoling on 2022/09/23 11:31

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
50.2	12
50.3	13	== 1.1 What is NSPH01 Soil pH Sensor ==
10.1	14
	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.
10.1	17
50.3	18	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.
50.2	19
10.1	20	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.
50.3	21	\\NSPH01 supports different uplink methods include (% style="color:blue" %)TCP,MQTT,UDP and CoAP (%%)for different application requirement.
	22	\\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)
	23	\\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.
10.1	24
50.3	25
34.1	26	[[image:image-20220907153151-1.png]]
	27
50.3	28
34.1	29	[[image:M_K`YF9`CAYAE\@}3T]FHT$9.png]]
	30
	31
50.3	32
	33	== 1.2 Features ==
	34
	35
34.1	36	* NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
	37	* Monitor soil pH with temperature compensation.
	38	* Monitor soil temperature
46.1	39	* pH and Temperature alarm function
34.1	40	* Monitor Battery Level
	41	* Support pH calibration by end user
	42	* Uplink on periodically
	43	* Downlink to change configure
	44	* IP66 Waterproof Enclosure
	45	* IP68 rate for the Sensor Probe
	46	* Ultra-Low Power consumption
	47	* AT Commands to change parameters
46.1	48	* Micro SIM card slot
34.1	49	* 8500mAh Battery for long term use
	50
51.10	51
	52
44.1	53	== 1.3 Specification ==
34.1	54
	55
50.3	56	(% style="color:#037691" %)Common DC Characteristics:
	57
34.1	58	* Supply Voltage: 2.1v ~~ 3.6v
	59	* Operating Temperature: -40 ~~ 85°C
	60
50.3	61	(% style="color:#037691" %)NB-IoT Spec:
	62
34.1	63	* - B1 @H-FDD: 2100MHz
	64	* - B3 @H-FDD: 1800MHz
	65	* - B8 @H-FDD: 900MHz
	66	* - B5 @H-FDD: 850MHz
	67	* - B20 @H-FDD: 800MHz
	68	* - B28 @H-FDD: 700MHz
	69
51.10	70
	71
50.3	72	== 1.4 Probe Specification ==
	73
	74
	75	(% style="color:#037691" %)Soil pH:
	76
34.1	77	* Range: 3 ~~ 10 pH
	78	* Resolution: 0.01 pH
	79	* Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
	80	* Temperature Compensation Range: 0 ~~ 50℃
	81	* IP68 Protection
	82	* Length: 3.5 meters
	83
50.3	84	(% style="color:#037691" %)Soil Temperature:
	85
34.1	86	* Range -40℃～85℃
	87	* Resolution: 0.1℃
	88	* Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
	89	* IP68 Protection
	90	* Length: 3.5 meters
	91
	92
51.10	93
	94	== 1.5 Applications ==
	95
	96
34.1	97	* Smart Agriculture
	98
	99
50.3	100
51.10	101	== 1.6 Pin mapping and power on ==
	102
	103
34.1	104	[[image:image-20220907153300-2.png]]
	105
	106
50.3	107
44.1	108	= 2. Use NSPH01 to communicate with IoT Server =
34.1	109
50.3	110
44.1	111	== 2.1 How it works ==
34.1	112
50.3	113
34.1	114	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.
	115
	116	The diagram below shows the working flow in default firmware of NSPH01:
	117
50.3	118
34.1	119	[[image:image-20220907153416-3.png]]
	120
50.3	121
	122
44.1	123	== 2.2 Configure the NSPH01 ==
34.1	124
50.3	125
44.1	126	=== 2.2.1 Test Requirement ===
34.1	127
50.3	128
46.1	129	To use NSPH01 in the field, make sure meet below requirements:
34.1	130
	131	* Your local operator has already distributed a NB-IoT Network there.
	132	* The local NB-IoT network used the band that NSPH01 supports.
	133	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
	134
	135
50.3	136
52.2	137	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.
	138
	139
34.1	140	[[image:image-20220907153445-4.png]]
	141
	142
50.3	143
44.1	144	=== 2.2.2 Insert SIM card ===
34.1	145
50.3	146
47.1	147	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	148
51.11	149
34.1	150	[[image:image-20220907153505-5.png]]
	151
50.3	152
	153
44.1	154	=== 2.2.3 Connect USB – TTL to NSPH01 to configure it ===
34.1	155
	156
51.2	157	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	158
	159
51.2	160	(% style="color:blue" %)Connection:
34.1	161
51.2	162	~ (% style="background-color:yellow" %) USB TTL GND <~-~-~-~-> GND(%%)
34.1	163
51.2	164	~ (% style="background-color:yellow" %) USB TTL TXD <~-~-~-~-> UART_RXD(%%)
	165
	166	~ (% style="background-color:yellow" %) USB TTL RXD <~-~-~-~-> UART_TXD(%%)
	167
	168
34.1	169	In the PC, use below serial tool settings:
	170
51.2	171	* Baud: (% style="color:green" %)9600
	172	* Data bits: (% style="color:green" %)8(%%)
	173	* Stop bits: (% style="color:green" %)1
	174	* Parity: (% style="color:green" %)None
	175	* Flow Control: (% style="color:green" %)None
34.1	176
52.2	177
	178
51.2	179	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	180
	181
51.2	182	[[image:image-20220912144017-1.png]]
34.1	183
51.2	184
	185	(% 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]]
	186
	187
	188
44.1	189	=== 2.2.4 Use CoAP protocol to uplink data ===
34.1	190
	191
51.2	192	(% 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	193
	194
51.2	195	(% style="color:blue" %)Use below commands:
	196
	197	* (% style="color:#037691" %)AT+PRO=1 (%%) ~/~/ Set to use CoAP protocol to uplink
	198	* (% style="color:#037691" %)AT+SERVADDR=120.24.4.116,5683 (%%) ~/~/ to set CoAP server address and port
	199	* (% style="color:#037691" %)AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" (%%) ~/~/ Set COAP resource path
	200
34.1	201	For parameter description, please refer to AT command set
	202
51.2	203
34.1	204	[[image:image-20220907153551-7.png\|\|height="502" width="740"]]
	205
	206
51.2	207	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.
	208
	209
34.1	210	[[image:image-20220907153612-8.png\|\|height="529" width="729"]]
	211
	212
51.2	213
44.1	214	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
34.1	215
51.2	216
34.1	217	This feature is supported since firmware version v1.0.1
	218
51.4	219	* (% style="color:blue" %)AT+PRO=2 (%%) ~/~/ Set to use UDP protocol to uplink
	220	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5601 (%%) ~/~/ to set UDP server address and port
	221	* (% style="color:blue" %)AT+CFM=1 (%%) ~/~/ If the server does not respond, this command is unnecessar
	222
52.2	223
	224
34.1	225	[[image:image-20220907153643-9.png\|\|height="401" width="734"]]
	226
51.2	227
34.1	228	[[image:image-20220907153703-10.png\|\|height="309" width="738"]]
	229
	230
51.4	231
44.1	232	=== 2.2.6 Use MQTT protocol to uplink data ===
34.1	233
51.4	234
34.1	235	This feature is supported since firmware version v110
	236
51.4	237	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/ Set to use MQTT protocol to uplink
	238	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/ Set MQTT server address and port
	239	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%) ~/~/ Set up the CLIENT of MQTT
	240	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/ Set the username of MQTT
	241	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/ Set the password of MQTT
	242	* (% style="color:blue" %)AT+PUBTOPIC=NSE01_PUB (%%)~/~/ Set the sending topic of MQTT
	243	* (% style="color:blue" %)AT+SUBTOPIC=NSE01_SUB (%%) ~/~/ Set the subscription topic of MQTT
34.1	244
52.2	245
	246
34.1	247	[[image:image-20220907153739-11.png\|\|height="491" width="764"]]
	248
51.3	249
34.1	250	[[image:image-20220907153751-12.png\|\|height="555" width="769"]]
	251
51.4	252
34.1	253	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.
	254
51.3	255
	256
	257
44.1	258	=== 2.2.7 Use TCP protocol to uplink data ===
34.1	259
51.4	260
34.1	261	This feature is supported since firmware version v110
	262
51.4	263	* (% style="color:blue" %)AT+PRO=4 (%%) ~/~/ Set to use TCP protocol to uplink
	264	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5600 (%%) ~/~/ to set TCP server address and port
34.1	265
52.2	266
	267
34.1	268	[[image:image-20220907153818-13.png\|\|height="486" width="668"]]
	269
51.3	270
34.1	271	[[image:image-20220907153827-14.png\|\|height="236" width="684"]]
	272
51.3	273
	274
44.1	275	=== 2.2.8 Change Update Interval ===
34.1	276
51.5	277
47.1	278	Users can use the below command to change the uplink interval.
34.1	279
51.4	280	* (% style="color:blue" %)AT+TDC=7200 (%%) ~/~/ Set Update Interval to 7200s (2 hour)
34.1	281
51.4	282	(% 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	283
47.1	284
51.5	285
44.1	286	== 2.3 Uplink Payload ==
34.1	287
51.5	288
34.1	289	In this mode, uplink payload includes 87 bytes in total by default.
	290
	291	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.
	292
51.5	293	(% border="2" style="background-color:#ffffcc; color:green; width:1160px" %)
	294	\|(% style="width:96px" %)Size(bytes)\|(% style="width:83px" %)8\|(% style="width:44px" %)2\|(% style="width:42px" %)2\|(% style="width:124px" %)1\|(% style="width:57px" %)1\|(% style="width:80px" %)1\|(% style="width:69px" %)2\|(% style="width:134px" %)2\|(% style="width:98px" %)4\|(% style="width:134px" %)2\|(% style="width:68px" %)2\|(% style="width:125px" %)4
	295	\|(% 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	296
34.1	297	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
	298
	299	[[image:image-20220907153902-15.png\|\|height="581" width="804"]]
	300
	301
52.2	302	(((
34.1	303	The payload is ASCII string, representative same HEX:
52.2	304	)))
34.1	305
52.2	306	(((
	307
	308	)))
34.1	309
52.2	310	(((
	311	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__//(%%)
	312	)))
34.1	313
52.2	314	(((
	315
51.10	316
52.2	317	where:
	318	)))
51.10	319
52.2	320	* Device ID: 0xf868411056754138 = f868411056754138
	321	* Version: 0x0064=100=1.0.0
	322	* BAT: 0x0c78 = 3192 mV = 3.192V
	323	* Singal: 0x17 = 23
	324	* Mod: 0x01 = 1
	325	* Interrupt: 0x00= 0
	326	* Soil PH: 0x0225= 549 = 5.49
	327	* Soil Temperature: 0x010b =267=26.7 °C
	328	* Time stamp : 0x6315537b =1662342011 ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
	329	* Soil Temperature,Soil PH,Time stamp : 010b0226631550fb
	330	* 8 sets of recorded data: Temperature,Soil PH,Time stamp : 010e022663154d77,.......
	331
	332
	333
	334
44.1	335	== 2.4 Payload Explanation and Sensor Interface ==
34.1	336
51.5	337
44.1	338	=== 2.4.1 Device ID ===
34.1	339
51.5	340
34.1	341	By default, the Device ID equal to the last 15 bits of IMEI.
	342
51.4	343	User can use (% style="color:blue" %)AT+DEUI (%%)to set Device ID
34.1	344
51.5	345
34.1	346	Example:
	347
	348	AT+DEUI=868411056754138
	349
	350	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
	351
51.5	352
	353
44.1	354	=== 2.4.2 Version Info ===
34.1	355
51.5	356
34.1	357	Specify the software version: 0x64=100, means firmware version 1.00.
	358
	359	For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
	360
51.5	361
	362
44.1	363	=== 2.4.3 Battery Info ===
34.1	364
51.5	365
34.1	366	Check the battery voltage for NSPH01.
	367
	368	Ex1: 0x0B45 = 2885mV
	369
	370	Ex2: 0x0B49 = 2889mV
	371
51.5	372
	373
44.1	374	=== 2.4.4 Signal Strength ===
34.1	375
51.5	376
34.1	377	NB-IoT Network signal Strength.
	378
	379	Ex1: 0x1d = 29
	380
	381	0 -113dBm or less
	382
	383	1 -111dBm
	384
	385	2...30 -109dBm... -53dBm
	386
	387	31 -51dBm or greater
	388
	389	99 Not known or not detectable
	390
51.5	391
	392
44.1	393	=== 2.4.5 Soil PH ===
34.1	394
51.5	395
34.1	396	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.
	397
51.9	398	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	399
51.9	400	(% style="color:blue" %)0229(H) = 549(D) /100 = 5.49.
34.1	401
51.5	402
	403
44.1	404	=== 2.4.6 Soil Temperature ===
34.1	405
51.5	406
51.9	407	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	408
51.9	409
34.1	410	Example:
	411
40.1	412	If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
34.1	413
40.1	414	If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
34.1	415
51.5	416
	417
44.1	418	=== 2.4.7 Timestamp ===
34.1	419
51.5	420
34.1	421	Time stamp : 0x6315537b =1662342011
	422
	423	Convert Unix timestamp to time 2022-9-5 9:40:11.
	424
51.5	425
	426
44.1	427	=== 2.4.8 Digital Interrupt ===
34.1	428
	429
51.5	430	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.
	431
34.1	432	The command is:
	433
51.5	434	(% 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	435
	436	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.
	437
	438
51.9	439	Example:
	440
34.1	441	0x(00): Normal uplink packet.
	442
	443	0x(01): Interrupt Uplink Packet.
	444
51.5	445
	446
44.1	447	=== 2.4.9 +5V Output ===
34.1	448
51.5	449
34.1	450	NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling.
	451
	452	The 5V output time can be controlled by AT Command.
	453
51.5	454	(% style="color:blue" %)AT+5VT=1000
34.1	455
	456	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	457
	458
51.5	459
44.1	460	== 2.5 Downlink Payload ==
34.1	461
51.5	462
41.1	463	By default, NSPH01 prints the downlink payload to console port.
34.1	464
37.1	465	[[image:image-20220907154636-17.png]]
34.1	466
	467
51.5	468	(% style="color:blue" %)Examples:
34.1	469
51.5	470	* (% style="color:#037691" %) Set TDC
34.1	471
	472	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	473
	474	Payload: 01 00 00 1E TDC=30S
	475
	476	Payload: 01 00 00 3C TDC=60S
	477
51.5	478	* (% style="color:#037691" %) Reset
34.1	479
42.1	480	If payload = 0x04FF, it will reset the NSPH01
34.1	481
51.5	482	* (% style="color:#037691" %) INTMOD
34.1	483
	484	Downlink Payload: 06000003, Set AT+INTMOD=3
	485
51.5	486
	487
44.1	488	== 2.6 LED Indicator ==
34.1	489
51.5	490
34.1	491	The NSPH01 has an internal LED which is to show the status of different state.
	492
	493	* 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)
	494	* Then the LED will be on for 1 second means device is boot normally.
	495	* After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
	496	* For each uplink probe, LED will be on for 500ms.
	497
	498
51.10	499
52.2	500
51.5	501	== 2.7 Installation and Maintain ==
	502
	503
	504	=== 2.7.1 Before measurement ===
	505
	506
34.1	507	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.
	508
	509
51.5	510
	511	=== 2.7.2 Measurement ===
	512
	513
51.7	514	(% style="color:#037691" %)Measurement the soil surface:
34.1	515
51.5	516
34.1	517	[[image:image-20220907154700-18.png]]
	518
	519	Choose the proper measuring position. Split the surface soil according to the measured deep.
	520
	521	Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
	522
	523	Slowly insert the probe to the measure point. Don't use large force which will break the probe. Make sure not shake when inserting.
	524
	525	Put soil over the probe after insert. And start to measure.
	526
51.5	527
51.7	528	(% style="color:#037691" %)Measurement inside soil:
34.1	529
	530	Dig a hole with diameter > 20CM.
	531
	532	Insert the probe inside, method like measure the surface.
	533
	534
51.5	535
	536	=== 2.7.3 Maintain Probe ===
	537
	538
34.1	539	1. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
	540	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.
	541	1. Probe reference electrode is also no strong, need to avoid strong force or hitting.
	542	1. User should keep reference electrode wet while not use.
	543	1. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
	544	1. The probe is IP68 can be put in water.
	545
51.10	546
	547
52.2	548
51.5	549	== 2.8 PH and Temperature alarm function ==
	550
	551
51.7	552	(% style="color:#037691" %)➢ AT Command:
51.5	553
51.7	554	(% style="color:blue" %)AT+ PHALARM=min,max
51.5	555
34.1	556	² When min=3, and max≠0, Alarm higher than max
	557
	558	² When min≠0, and max=0, Alarm lower than min
	559
	560	² When min≠0 and max≠0, Alarm higher than max or lower than min
	561
	562
51.7	563	(% style="color:blue" %)Example:
34.1	564
51.5	565	AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
	566
34.1	567	AT+ TEMPALARM=min,max
	568
	569	² When min=0, and max≠0, Alarm higher than max
	570
	571	² When min≠0, and max=0, Alarm lower than min
	572
	573	² When min≠0 and max≠0, Alarm higher than max or lower than min
	574
	575
51.7	576	(% style="color:blue" %)Example:
34.1	577
51.5	578	AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
34.1	579
51.5	580
	581
51.7	582	== 2.9 Set the number of data to be uploaded and the recording time ==
34.1	583
	584
51.7	585	(% style="color:#037691" %)➢ AT Command:
34.1	586
51.7	587	* (% 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)
	588	* (% 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	589
47.1	590
51.5	591
52.2	592
51.7	593	== 2.10 Read or Clear cached data ==
34.1	594
	595
51.7	596	(% style="color:#037691" %)➢ AT Command:
51.5	597
51.7	598	* (% style="color:blue" %)AT+CDP (%%) ~/~/ Read cached data
51.9	599	* (% style="color:blue" %)AT+CDP=0 (%%) ~/~/ Clear cached data
51.5	600
	601
51.11	602
34.1	603	[[image:image-20220907154700-19.png]]
	604
	605
	606
51.5	607	== 2.11 Calibration ==
34.1	608
	609
	610	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).
	611
	612	After stable, user can use below command to calibrate.
	613
51.5	614
34.1	615	[[image:image-20220907154700-20.png]]
	616
51.5	617
	618
44.1	619	== 2.12 Firmware Change Log ==
34.1	620
51.5	621
51.11	622	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	623
51.7	624	Upgrade Instruction: [[Upgrade Firmware>>\|\|anchor="H5.1200BHowtoUpgradeFirmware"]]
34.1	625
51.5	626
	627
44.1	628	== 2.13 Battery Analysis ==
34.1	629
51.5	630
44.1	631	=== 2.13.1 Battery Type ===
34.1	632
51.5	633
34.1	634	The NSPH01 battery is a combination of an 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is none-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
	635
	636	The battery is designed to last for several years depends on the actually use environment and update interval.
	637
47.1	638	The battery-related documents as below:
34.1	639
	640	* [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	641	* [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	642	* [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	643
	644	[[image:image-20220907154700-21.png]]
	645
51.5	646
	647
44.1	648	=== 2.13.2 Power consumption Analyze ===
34.1	649
51.5	650
34.1	651	Dragino battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
	652
	653	Instruction to use as below:
	654
51.7	655	(% style="color:blue" %)Step 1: (%%)Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
34.1	656
51.8	657	(% style="color:blue" %)Step 2: (%%) Open it and choose
34.1	658
	659	* Product Model
	660	* Uplink Interval
	661	* Working Mode
	662
	663	And the Life expectation in difference case will be shown on the right.
	664
51.6	665
34.1	666	[[image:image-20220907154700-22.jpeg]]
	667
	668
	669
51.5	670
44.1	671	=== 2.13.3 Battery Note ===
34.1	672
51.5	673
34.1	674	The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
	675
51.5	676
	677
44.1	678	=== 2.13.4 Replace the battery ===
34.1	679
51.5	680
34.1	681	The default battery pack of NSPH01 includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence without the SPC1520 capacitor, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes).
	682
51.5	683
	684
44.1	685	= 3. Access NB-IoT Module =
34.1	686
51.5	687
34.1	688	Users can directly access the AT command set of the NB-IoT module.
	689
	690	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/]]
	691
51.5	692
34.1	693	[[image:image-20220907154700-23.png]]
	694
	695
	696
51.5	697
44.1	698	= 4. Using the AT Commands =
34.1	699
51.5	700
44.1	701	== 4.1 Access AT Commands ==
34.1	702
51.5	703
34.1	704	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]]
	705
	706	AT+<CMD>? : Help on <CMD>
	707
	708	AT+<CMD> : Run <CMD>
	709
	710	AT+<CMD>=<value> : Set the value
	711
	712	AT+<CMD>=? : Get the value
	713
51.5	714
51.7	715	(% style="color:#037691" %)General Commands
34.1	716
	717	AT : Attention
	718
	719	AT? : Short Help
	720
	721	ATZ : MCU Reset
	722
	723	AT+TDC : Application Data Transmission Interval
	724
	725	AT+CFG : Print all configurations
	726
	727	AT+CFGMOD : Working mode selection
	728
	729	AT+INTMOD : Set the trigger interrupt mode
	730
	731	AT+5VT : Set extend the time of 5V power
	732
	733	AT+PRO : Choose agreement
	734
	735	AT+RXDL : Extend the sending and receiving time
	736
	737	AT+SERVADDR : Server Address
	738
	739	AT+TR : Get or Set record time"
	740
50.1	741	AT+APN : Get or set the APN
34.1	742
50.1	743	AT+FBAND : Get or Set whether to automatically modify the frequency band
	744
	745	AT+DNSCFG : Get or Set DNS Server
	746
	747	AT+GETSENSORVALUE : Returns the current sensor measurement
	748
34.1	749	AT+NOUD : Get or Set the number of data to be uploaded
	750
	751	AT+CDP : Read or Clear cached data
	752
	753	AT+TEMPALARM : Get or Set alarm of temp
	754
	755	AT+PHALARM : Get or Set alarm of PH
	756
	757	AT+ PHCAL : calibrate PH value
	758
	759
51.7	760	(% style="color:#037691" %)COAP Management
34.1	761
	762	AT+URI : Resource parameters
	763
51.5	764
51.7	765	(% style="color:#037691" %)UDP Management
34.1	766
	767	AT+CFM : Upload confirmation mode (only valid for UDP)
	768
51.5	769
51.7	770	(% style="color:#037691" %)MQTT Management
34.1	771
	772	AT+CLIENT : Get or Set MQTT client
	773
	774	AT+UNAME : Get or Set MQTT Username
	775
	776	AT+PWD : Get or Set MQTT password
	777
	778	AT+PUBTOPIC : Get or Set MQTT publish topic
	779
	780	AT+SUBTOPIC : Get or Set MQTT subscription topic
	781
51.5	782
51.7	783	(% style="color:#037691" %)Information
34.1	784
	785	AT+FDR : Factory Data Reset
	786
	787	AT+PWORD : Serial Access Password
	788
51.5	789
	790
44.1	791	= 5. FAQ =
34.1	792
51.5	793
44.1	794	== 5.1 How to Upgrade Firmware ==
34.1	795
51.5	796
34.1	797	User can upgrade the firmware for 1) bug fix, 2) new feature release.
	798
	799	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]]
	800
51.8	801	(% style="color:red" %)Notice, NSPH01 and LSPH01 share the same mother board. They use the same connection and method to update.
34.1	802
51.5	803
	804
44.1	805	== 5.2 Can I calibrate NSPH01 to different soil types? ==
34.1	806
51.5	807
34.1	808	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]].
	809
51.5	810
	811
44.1	812	= 6. Trouble Shooting =
34.1	813
51.5	814
44.1	815	== 6.1 Connection problem when uploading firmware ==
34.1	816
51.5	817
34.1	818	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]]
	819
51.5	820
	821
44.1	822	== 6.2 AT Command input doesn't work ==
34.1	823
	824
51.7	825	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	826
	827
	828
44.1	829	= 7. Order Info =
34.1	830
51.5	831
34.1	832	Part Number: NSPH01
	833
51.5	834
	835
44.1	836	= 8. Packing Info =
34.1	837
51.5	838
34.1	839	Package Includes:
	840
47.1	841	* NSPH01 NB-IoT pH Sensor x 1
34.1	842	* External antenna x 1
	843
	844	Dimension and weight:
	845
51.10	846	* Device Size: cm
	847	* Device Weight: g
	848	* Package Size / pcs : cm
	849	* Weight / pcs : g
34.1	850
51.10	851
	852
52.2	853
44.1	854	= 9. Support =
34.1	855
51.5	856
34.1	857	* 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.
	858	* 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]]
	859
	860

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

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