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

Version 56.8 by Xiaoling on 2022/10/25 16:46

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.
	21
56.4	22	NSPH01 supports different uplink methods include (% style="color:blue" %)TCP,MQTT,UDP and CoAP (%%)for different application requirement.
50.3	23
56.4	24	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)
	25
	26	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.
	27
	28
34.1	29	[[image:image-20220907153151-1.png]]
	30
50.3	31
34.1	32	[[image:M_K`YF9`CAYAE\@}3T]FHT$9.png]]
	33
	34
50.3	35
	36	== 1.2 Features ==
	37
	38
34.1	39	* NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
	40	* Monitor soil pH with temperature compensation.
	41	* Monitor soil temperature
46.1	42	* pH and Temperature alarm function
34.1	43	* Monitor Battery Level
	44	* Support pH calibration by end user
	45	* Uplink on periodically
	46	* Downlink to change configure
	47	* IP66 Waterproof Enclosure
	48	* IP68 rate for the Sensor Probe
	49	* Ultra-Low Power consumption
	50	* AT Commands to change parameters
46.1	51	* Micro SIM card slot
34.1	52	* 8500mAh Battery for long term use
	53
56.2	54
56.8	55
44.1	56	== 1.3 Specification ==
34.1	57
	58
50.3	59	(% style="color:#037691" %)Common DC Characteristics:
	60
34.1	61	* Supply Voltage: 2.1v ~~ 3.6v
	62	* Operating Temperature: -40 ~~ 85°C
	63
50.3	64	(% style="color:#037691" %)NB-IoT Spec:
	65
34.1	66	* - B1 @H-FDD: 2100MHz
	67	* - B3 @H-FDD: 1800MHz
	68	* - B8 @H-FDD: 900MHz
	69	* - B5 @H-FDD: 850MHz
	70	* - B20 @H-FDD: 800MHz
	71	* - B28 @H-FDD: 700MHz
	72
56.2	73
56.8	74
50.3	75	== 1.4 Probe Specification ==
	76
	77
	78	(% style="color:#037691" %)Soil pH:
	79
34.1	80	* Range: 3 ~~ 10 pH
	81	* Resolution: 0.01 pH
	82	* Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
	83	* Temperature Compensation Range: 0 ~~ 50℃
	84	* IP68 Protection
	85	* Length: 3.5 meters
	86
50.3	87	(% style="color:#037691" %)Soil Temperature:
	88
34.1	89	* Range -40℃～85℃
	90	* Resolution: 0.1℃
	91	* Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
	92	* IP68 Protection
	93	* Length: 3.5 meters
	94
56.2	95
56.8	96
51.10	97	== 1.5 Applications ==
	98
	99
34.1	100	* Smart Agriculture
	101
56.2	102
56.8	103
51.10	104	== 1.6 Pin mapping and power on ==
	105
	106
34.1	107	[[image:image-20220907153300-2.png]]
	108
	109
50.3	110
44.1	111	= 2. Use NSPH01 to communicate with IoT Server =
34.1	112
50.3	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
	125
44.1	126	== 2.2 Configure the NSPH01 ==
34.1	127
50.3	128
44.1	129	=== 2.2.1 Test Requirement ===
34.1	130
50.3	131
46.1	132	To use NSPH01 in the field, make sure meet below requirements:
34.1	133
	134	* Your local operator has already distributed a NB-IoT Network there.
	135	* The local NB-IoT network used the band that NSPH01 supports.
	136	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
	137
52.2	138	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.
	139
	140
34.1	141	[[image:image-20220907153445-4.png]]
	142
	143
50.3	144
44.1	145	=== 2.2.2 Insert SIM card ===
34.1	146
50.3	147
47.1	148	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	149
51.11	150
34.1	151	[[image:image-20220907153505-5.png]]
	152
50.3	153
	154
44.1	155	=== 2.2.3 Connect USB – TTL to NSPH01 to configure it ===
34.1	156
	157
51.2	158	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	159
	160
51.2	161	(% style="color:blue" %)Connection:
34.1	162
51.2	163	~ (% style="background-color:yellow" %) USB TTL GND <~-~-~-~-> GND(%%)
34.1	164
51.2	165	~ (% style="background-color:yellow" %) USB TTL TXD <~-~-~-~-> UART_RXD(%%)
	166
	167	~ (% style="background-color:yellow" %) USB TTL RXD <~-~-~-~-> UART_TXD(%%)
	168
	169
34.1	170	In the PC, use below serial tool settings:
	171
51.2	172	* Baud: (% style="color:green" %)9600
	173	* Data bits: (% style="color:green" %)8(%%)
	174	* Stop bits: (% style="color:green" %)1
	175	* Parity: (% style="color:green" %)None
	176	* Flow Control: (% style="color:green" %)None
34.1	177
51.2	178	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	179
	180
51.2	181	[[image:image-20220912144017-1.png]]
34.1	182
51.2	183
	184	(% 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]]
	185
	186
	187
44.1	188	=== 2.2.4 Use CoAP protocol to uplink data ===
34.1	189
	190
51.2	191	(% 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	192
	193
51.2	194	(% style="color:blue" %)Use below commands:
	195
	196	* (% style="color:#037691" %)AT+PRO=1 (%%) ~/~/ Set to use CoAP protocol to uplink
	197	* (% style="color:#037691" %)AT+SERVADDR=120.24.4.116,5683 (%%) ~/~/ to set CoAP server address and port
	198	* (% style="color:#037691" %)AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" (%%) ~/~/ Set COAP resource path
	199
34.1	200	For parameter description, please refer to AT command set
	201
51.2	202
34.1	203	[[image:image-20220907153551-7.png\|\|height="502" width="740"]]
	204
	205
51.2	206	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.
	207
	208
34.1	209	[[image:image-20220907153612-8.png\|\|height="529" width="729"]]
	210
	211
51.2	212
44.1	213	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
34.1	214
51.2	215
34.1	216	This feature is supported since firmware version v1.0.1
	217
51.4	218	* (% style="color:blue" %)AT+PRO=2 (%%) ~/~/ Set to use UDP protocol to uplink
	219	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5601 (%%) ~/~/ to set UDP server address and port
	220	* (% style="color:blue" %)AT+CFM=1 (%%) ~/~/ If the server does not respond, this command is unnecessar
	221
34.1	222	[[image:image-20220907153643-9.png\|\|height="401" width="734"]]
	223
51.2	224
34.1	225	[[image:image-20220907153703-10.png\|\|height="309" width="738"]]
	226
	227
51.4	228
44.1	229	=== 2.2.6 Use MQTT protocol to uplink data ===
34.1	230
51.4	231
34.1	232	This feature is supported since firmware version v110
	233
51.4	234	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/ Set to use MQTT protocol to uplink
	235	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/ Set MQTT server address and port
	236	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%) ~/~/ Set up the CLIENT of MQTT
	237	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/ Set the username of MQTT
	238	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/ Set the password of MQTT
	239	* (% style="color:blue" %)AT+PUBTOPIC=NSE01_PUB (%%)~/~/ Set the sending topic of MQTT
	240	* (% style="color:blue" %)AT+SUBTOPIC=NSE01_SUB (%%) ~/~/ Set the subscription topic of MQTT
34.1	241
	242	[[image:image-20220907153739-11.png\|\|height="491" width="764"]]
	243
51.3	244
34.1	245	[[image:image-20220907153751-12.png\|\|height="555" width="769"]]
	246
51.4	247
34.1	248	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.
	249
51.3	250
	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
	266
44.1	267	=== 2.2.8 Change Update Interval ===
34.1	268
51.5	269
47.1	270	Users can use the below command to change the uplink interval.
34.1	271
51.4	272	* (% style="color:blue" %)AT+TDC=7200 (%%) ~/~/ Set Update Interval to 7200s (2 hour)
34.1	273
51.4	274	(% 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	275
47.1	276
51.5	277
44.1	278	== 2.3 Uplink Payload ==
34.1	279
51.5	280
34.1	281	In this mode, uplink payload includes 87 bytes in total by default.
	282
	283	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.
	284
56.3	285	(% border="1.5" style="background-color:#ffffcc; color:green; width:520px" %)
56.7	286	\|=(% scope="row" style="width: 50px;" %)Size(bytes)\|(% style="width:40px" %)8\|(% style="width:20px" %)2\|(% style="width:25px" %)2\|(% style="width:60px" %)1\|(% style="width:20px" %)1\|(% style="width:40px" %)1\|(% style="width:40px" %)2\|(% style="width:50px" %)2\|(% style="width:50px" %)4\|(% style="width:50px" %)2\|(% style="width:35px" %)2\|(% style="width:40px" %)4
56.3	287	\|=(% 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	288
34.1	289	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
	290
	291	[[image:image-20220907153902-15.png\|\|height="581" width="804"]]
	292
	293
52.2	294	(((
34.1	295	The payload is ASCII string, representative same HEX:
52.2	296	)))
34.1	297
52.2	298	(((
	299
	300	)))
34.1	301
52.2	302	(((
	303	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__//(%%)
	304	)))
34.1	305
52.2	306	(((
	307
51.10	308
56.2	309	where:
52.2	310	)))
51.10	311
56.2	312	* (% style="color:#037691" %)Device ID:(%%) 0xf868411056754138 = f868411056754138
52.2	313
56.2	314	* (% style="color:#037691" %)Version: (%%) 0x0064=100=1.0.0
	315
	316	* (% style="color:#037691" %)BAT: (%%) 0x0c78 = 3192 mV = 3.192V
	317
	318	* (% style="color:#037691" %)Singal: (%%)0x17 = 23
	319
	320	* (% style="color:#037691" %)Mod: (%%) 0x01 = 1
	321
	322	* (% style="color:#037691" %)Interrupt:(%%) 0x00= 0
	323
	324	* (% style="color:#037691" %)Soil PH: (%%) 0x0225= 549 = 5.49
	325
	326	* (% style="color:#037691" %)Soil Temperature:(%%) 0x010b =267=26.7 °C
	327
	328	* (% style="color:#037691" %)Time stamp : (%%) 0x6315537b =1662342011 ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
	329
	330	* (% style="color:#037691" %)Soil Temperature,Soil PH,Time stamp : (%%) 010b0226631550fb
	331
	332	* (% style="color:#037691" %)8 sets of recorded data:(%%) Temperature,Soil PH,Time stamp : 010e022663154d77,.......
	333
	334
56.8	335
44.1	336	== 2.4 Payload Explanation and Sensor Interface ==
34.1	337
51.5	338
44.1	339	=== 2.4.1 Device ID ===
34.1	340
51.5	341
34.1	342	By default, the Device ID equal to the last 15 bits of IMEI.
	343
51.4	344	User can use (% style="color:blue" %)AT+DEUI (%%)to set Device ID
34.1	345
51.5	346
34.1	347	Example:
	348
	349	AT+DEUI=868411056754138
	350
	351	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
	352
51.5	353
	354
44.1	355	=== 2.4.2 Version Info ===
34.1	356
51.5	357
34.1	358	Specify the software version: 0x64=100, means firmware version 1.00.
	359
	360	For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
	361
51.5	362
	363
44.1	364	=== 2.4.3 Battery Info ===
34.1	365
51.5	366
34.1	367	Check the battery voltage for NSPH01.
	368
	369	Ex1: 0x0B45 = 2885mV
	370
	371	Ex2: 0x0B49 = 2889mV
	372
51.5	373
	374
44.1	375	=== 2.4.4 Signal Strength ===
34.1	376
51.5	377
34.1	378	NB-IoT Network signal Strength.
	379
	380	Ex1: 0x1d = 29
	381
	382	0 -113dBm or less
	383
	384	1 -111dBm
	385
	386	2...30 -109dBm... -53dBm
	387
	388	31 -51dBm or greater
	389
	390	99 Not known or not detectable
	391
51.5	392
	393
44.1	394	=== 2.4.5 Soil PH ===
34.1	395
51.5	396
34.1	397	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.
	398
51.9	399	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	400
51.9	401	(% style="color:blue" %)0229(H) = 549(D) /100 = 5.49.
34.1	402
51.5	403
	404
44.1	405	=== 2.4.6 Soil Temperature ===
34.1	406
51.5	407
51.9	408	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	409
51.9	410
34.1	411	Example:
	412
40.1	413	If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
34.1	414
40.1	415	If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
34.1	416
51.5	417
	418
44.1	419	=== 2.4.7 Timestamp ===
34.1	420
51.5	421
34.1	422	Time stamp : 0x6315537b =1662342011
	423
	424	Convert Unix timestamp to time 2022-9-5 9:40:11.
	425
51.5	426
	427
44.1	428	=== 2.4.8 Digital Interrupt ===
34.1	429
	430
51.5	431	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.
	432
34.1	433	The command is:
	434
51.5	435	(% 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	436
	437	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.
	438
	439
51.9	440	Example:
	441
34.1	442	0x(00): Normal uplink packet.
	443
	444	0x(01): Interrupt Uplink Packet.
	445
51.5	446
	447
44.1	448	=== 2.4.9 +5V Output ===
34.1	449
51.5	450
34.1	451	NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling.
	452
	453	The 5V output time can be controlled by AT Command.
	454
51.5	455	(% style="color:blue" %)AT+5VT=1000
34.1	456
	457	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	458
	459
51.5	460
44.1	461	== 2.5 Downlink Payload ==
34.1	462
51.5	463
41.1	464	By default, NSPH01 prints the downlink payload to console port.
34.1	465
37.1	466	[[image:image-20220907154636-17.png]]
34.1	467
	468
51.5	469	(% style="color:blue" %)Examples:
34.1	470
51.5	471	* (% style="color:#037691" %) Set TDC
34.1	472
	473	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	474
	475	Payload: 01 00 00 1E TDC=30S
	476
	477	Payload: 01 00 00 3C TDC=60S
	478
51.5	479	* (% style="color:#037691" %) Reset
34.1	480
42.1	481	If payload = 0x04FF, it will reset the NSPH01
34.1	482
51.5	483	* (% style="color:#037691" %) INTMOD
34.1	484
	485	Downlink Payload: 06000003, Set AT+INTMOD=3
	486
51.5	487
	488
44.1	489	== 2.6 LED Indicator ==
34.1	490
51.5	491
34.1	492	The NSPH01 has an internal LED which is to show the status of different state.
	493
	494	* 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)
	495	* Then the LED will be on for 1 second means device is boot normally.
	496	* After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
	497	* For each uplink probe, LED will be on for 500ms.
	498
56.8	499
	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
56.8	546
	547
51.5	548	== 2.8 PH and Temperature alarm function ==
	549
	550
51.7	551	(% style="color:#037691" %)➢ AT Command:
51.5	552
51.7	553	(% style="color:blue" %)AT+ PHALARM=min,max
51.5	554
34.1	555	² When min=3, 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+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
	565
34.1	566	AT+ TEMPALARM=min,max
	567
	568	² When min=0, and max≠0, Alarm higher than max
	569
	570	² When min≠0, and max=0, Alarm lower than min
	571
	572	² When min≠0 and max≠0, Alarm higher than max or lower than min
	573
	574
51.7	575	(% style="color:blue" %)Example:
34.1	576
51.5	577	AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
34.1	578
51.5	579
	580
51.7	581	== 2.9 Set the number of data to be uploaded and the recording time ==
34.1	582
	583
51.7	584	(% style="color:#037691" %)➢ AT Command:
34.1	585
51.7	586	* (% 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)
	587	* (% 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	588
54.1	589	The diagram below explains the relationship between TR, NOUD, and TDC more clearly:
47.1	590
56.1	591	[[image:image-20221009000933-1.png\|\|height="750" width="1043"]]
51.5	592
54.1	593
	594
51.7	595	== 2.10 Read or Clear cached data ==
34.1	596
	597
51.7	598	(% style="color:#037691" %)➢ AT Command:
51.5	599
51.7	600	* (% style="color:blue" %)AT+CDP (%%) ~/~/ Read cached data
51.9	601	* (% style="color:blue" %)AT+CDP=0 (%%) ~/~/ Clear cached data
51.5	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
56.2	851
56.8	852
44.1	853	= 9. Support =
34.1	854
51.5	855
34.1	856	* 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.
	857	* 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]]
	858
	859

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

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