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

Version 53.1 by David Huang on 2022/10/08 11:47

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
44.1	52	== 1.3 Specification ==
34.1	53
	54
50.3	55	(% style="color:#037691" %)Common DC Characteristics:
	56
34.1	57	* Supply Voltage: 2.1v ~~ 3.6v
	58	* Operating Temperature: -40 ~~ 85°C
	59
50.3	60	(% style="color:#037691" %)NB-IoT Spec:
	61
34.1	62	* - B1 @H-FDD: 2100MHz
	63	* - B3 @H-FDD: 1800MHz
	64	* - B8 @H-FDD: 900MHz
	65	* - B5 @H-FDD: 850MHz
	66	* - B20 @H-FDD: 800MHz
	67	* - B28 @H-FDD: 700MHz
	68
51.10	69
50.3	70	== 1.4 Probe Specification ==
	71
	72
	73	(% style="color:#037691" %)Soil pH:
	74
34.1	75	* Range: 3 ~~ 10 pH
	76	* Resolution: 0.01 pH
	77	* Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
	78	* Temperature Compensation Range: 0 ~~ 50℃
	79	* IP68 Protection
	80	* Length: 3.5 meters
	81
50.3	82	(% style="color:#037691" %)Soil Temperature:
	83
34.1	84	* Range -40℃～85℃
	85	* Resolution: 0.1℃
	86	* Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
	87	* IP68 Protection
	88	* Length: 3.5 meters
	89
	90
51.10	91	== 1.5 Applications ==
	92
	93
34.1	94	* Smart Agriculture
	95
	96
51.10	97	== 1.6 Pin mapping and power on ==
	98
	99
34.1	100	[[image:image-20220907153300-2.png]]
	101
	102
50.3	103
44.1	104	= 2. Use NSPH01 to communicate with IoT Server =
34.1	105
50.3	106
44.1	107	== 2.1 How it works ==
34.1	108
50.3	109
34.1	110	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.
	111
	112	The diagram below shows the working flow in default firmware of NSPH01:
	113
50.3	114
34.1	115	[[image:image-20220907153416-3.png]]
	116
50.3	117
	118
44.1	119	== 2.2 Configure the NSPH01 ==
34.1	120
50.3	121
44.1	122	=== 2.2.1 Test Requirement ===
34.1	123
50.3	124
46.1	125	To use NSPH01 in the field, make sure meet below requirements:
34.1	126
	127	* Your local operator has already distributed a NB-IoT Network there.
	128	* The local NB-IoT network used the band that NSPH01 supports.
	129	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
	130
	131
52.2	132	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.
	133
	134
34.1	135	[[image:image-20220907153445-4.png]]
	136
	137
50.3	138
44.1	139	=== 2.2.2 Insert SIM card ===
34.1	140
50.3	141
47.1	142	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	143
51.11	144
34.1	145	[[image:image-20220907153505-5.png]]
	146
50.3	147
	148
44.1	149	=== 2.2.3 Connect USB – TTL to NSPH01 to configure it ===
34.1	150
	151
51.2	152	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	153
	154
51.2	155	(% style="color:blue" %)Connection:
34.1	156
51.2	157	~ (% style="background-color:yellow" %) USB TTL GND <~-~-~-~-> GND(%%)
34.1	158
51.2	159	~ (% style="background-color:yellow" %) USB TTL TXD <~-~-~-~-> UART_RXD(%%)
	160
	161	~ (% style="background-color:yellow" %) USB TTL RXD <~-~-~-~-> UART_TXD(%%)
	162
	163
34.1	164	In the PC, use below serial tool settings:
	165
51.2	166	* Baud: (% style="color:green" %)9600
	167	* Data bits: (% style="color:green" %)8(%%)
	168	* Stop bits: (% style="color:green" %)1
	169	* Parity: (% style="color:green" %)None
	170	* Flow Control: (% style="color:green" %)None
34.1	171
52.2	172
51.2	173	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	174
	175
51.2	176	[[image:image-20220912144017-1.png]]
34.1	177
51.2	178
	179	(% 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]]
	180
	181
	182
44.1	183	=== 2.2.4 Use CoAP protocol to uplink data ===
34.1	184
	185
51.2	186	(% style="color:red" %)Note: if you don't have CoAP server, you can refer this link to set up one:(%%) [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
34.1	187
	188
51.2	189	(% style="color:blue" %)Use below commands:
	190
	191	* (% style="color:#037691" %)AT+PRO=1 (%%) ~/~/ Set to use CoAP protocol to uplink
	192	* (% style="color:#037691" %)AT+SERVADDR=120.24.4.116,5683 (%%) ~/~/ to set CoAP server address and port
	193	* (% style="color:#037691" %)AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" (%%) ~/~/ Set COAP resource path
	194
34.1	195	For parameter description, please refer to AT command set
	196
51.2	197
34.1	198	[[image:image-20220907153551-7.png\|\|height="502" width="740"]]
	199
	200
51.2	201	After configure the server address and (% style="color:green" %)reset the device (via AT+ATZ )(%%), NSPH01 will start to uplink sensor values to CoAP server.
	202
	203
34.1	204	[[image:image-20220907153612-8.png\|\|height="529" width="729"]]
	205
	206
51.2	207
44.1	208	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
34.1	209
51.2	210
34.1	211	This feature is supported since firmware version v1.0.1
	212
51.4	213	* (% style="color:blue" %)AT+PRO=2 (%%) ~/~/ Set to use UDP protocol to uplink
	214	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5601 (%%) ~/~/ to set UDP server address and port
	215	* (% style="color:blue" %)AT+CFM=1 (%%) ~/~/ If the server does not respond, this command is unnecessar
	216
52.2	217
34.1	218	[[image:image-20220907153643-9.png\|\|height="401" width="734"]]
	219
51.2	220
34.1	221	[[image:image-20220907153703-10.png\|\|height="309" width="738"]]
	222
	223
51.4	224
44.1	225	=== 2.2.6 Use MQTT protocol to uplink data ===
34.1	226
51.4	227
34.1	228	This feature is supported since firmware version v110
	229
51.4	230	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/ Set to use MQTT protocol to uplink
	231	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/ Set MQTT server address and port
	232	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%) ~/~/ Set up the CLIENT of MQTT
	233	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/ Set the username of MQTT
	234	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/ Set the password of MQTT
	235	* (% style="color:blue" %)AT+PUBTOPIC=NSE01_PUB (%%)~/~/ Set the sending topic of MQTT
	236	* (% style="color:blue" %)AT+SUBTOPIC=NSE01_SUB (%%) ~/~/ Set the subscription topic of MQTT
34.1	237
52.2	238
34.1	239	[[image:image-20220907153739-11.png\|\|height="491" width="764"]]
	240
51.3	241
34.1	242	[[image:image-20220907153751-12.png\|\|height="555" width="769"]]
	243
51.4	244
34.1	245	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.
	246
51.3	247
	248
	249
44.1	250	=== 2.2.7 Use TCP protocol to uplink data ===
34.1	251
51.4	252
34.1	253	This feature is supported since firmware version v110
	254
51.4	255	* (% style="color:blue" %)AT+PRO=4 (%%) ~/~/ Set to use TCP protocol to uplink
	256	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5600 (%%) ~/~/ to set TCP server address and port
34.1	257
52.2	258
34.1	259	[[image:image-20220907153818-13.png\|\|height="486" width="668"]]
	260
51.3	261
34.1	262	[[image:image-20220907153827-14.png\|\|height="236" width="684"]]
	263
51.3	264
	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
51.5	276
44.1	277	== 2.3 Uplink Payload ==
34.1	278
51.5	279
34.1	280	In this mode, uplink payload includes 87 bytes in total by default.
	281
	282	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.
	283
51.5	284	(% border="2" style="background-color:#ffffcc; color:green; width:1160px" %)
	285	\|(% 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
	286	\|(% 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	287
34.1	288	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
	289
	290	[[image:image-20220907153902-15.png\|\|height="581" width="804"]]
	291
	292
52.2	293	(((
34.1	294	The payload is ASCII string, representative same HEX:
52.2	295	)))
34.1	296
52.2	297	(((
	298
	299	)))
34.1	300
52.2	301	(((
	302	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__//(%%)
	303	)))
34.1	304
52.2	305	(((
	306
51.10	307
52.2	308	where:
	309	)))
51.10	310
52.2	311	* Device ID: 0xf868411056754138 = f868411056754138
	312	* Version: 0x0064=100=1.0.0
	313	* BAT: 0x0c78 = 3192 mV = 3.192V
	314	* Singal: 0x17 = 23
	315	* Mod: 0x01 = 1
	316	* Interrupt: 0x00= 0
	317	* Soil PH: 0x0225= 549 = 5.49
	318	* Soil Temperature: 0x010b =267=26.7 °C
	319	* Time stamp : 0x6315537b =1662342011 ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
	320	* Soil Temperature,Soil PH,Time stamp : 010b0226631550fb
	321	* 8 sets of recorded data: Temperature,Soil PH,Time stamp : 010e022663154d77,.......
	322
	323
	324
44.1	325	== 2.4 Payload Explanation and Sensor Interface ==
34.1	326
51.5	327
44.1	328	=== 2.4.1 Device ID ===
34.1	329
51.5	330
34.1	331	By default, the Device ID equal to the last 15 bits of IMEI.
	332
51.4	333	User can use (% style="color:blue" %)AT+DEUI (%%)to set Device ID
34.1	334
51.5	335
34.1	336	Example:
	337
	338	AT+DEUI=868411056754138
	339
	340	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
	341
51.5	342
	343
44.1	344	=== 2.4.2 Version Info ===
34.1	345
51.5	346
34.1	347	Specify the software version: 0x64=100, means firmware version 1.00.
	348
	349	For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
	350
51.5	351
	352
44.1	353	=== 2.4.3 Battery Info ===
34.1	354
51.5	355
34.1	356	Check the battery voltage for NSPH01.
	357
	358	Ex1: 0x0B45 = 2885mV
	359
	360	Ex2: 0x0B49 = 2889mV
	361
51.5	362
	363
44.1	364	=== 2.4.4 Signal Strength ===
34.1	365
51.5	366
34.1	367	NB-IoT Network signal Strength.
	368
	369	Ex1: 0x1d = 29
	370
	371	0 -113dBm or less
	372
	373	1 -111dBm
	374
	375	2...30 -109dBm... -53dBm
	376
	377	31 -51dBm or greater
	378
	379	99 Not known or not detectable
	380
51.5	381
	382
44.1	383	=== 2.4.5 Soil PH ===
34.1	384
51.5	385
34.1	386	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.
	387
51.9	388	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	389
51.9	390	(% style="color:blue" %)0229(H) = 549(D) /100 = 5.49.
34.1	391
51.5	392
	393
44.1	394	=== 2.4.6 Soil Temperature ===
34.1	395
51.5	396
51.9	397	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	398
51.9	399
34.1	400	Example:
	401
40.1	402	If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
34.1	403
40.1	404	If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
34.1	405
51.5	406
	407
44.1	408	=== 2.4.7 Timestamp ===
34.1	409
51.5	410
34.1	411	Time stamp : 0x6315537b =1662342011
	412
	413	Convert Unix timestamp to time 2022-9-5 9:40:11.
	414
51.5	415
	416
44.1	417	=== 2.4.8 Digital Interrupt ===
34.1	418
	419
51.5	420	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.
	421
34.1	422	The command is:
	423
51.5	424	(% 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	425
	426	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.
	427
	428
51.9	429	Example:
	430
34.1	431	0x(00): Normal uplink packet.
	432
	433	0x(01): Interrupt Uplink Packet.
	434
51.5	435
	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
51.5	449
44.1	450	== 2.5 Downlink Payload ==
34.1	451
51.5	452
41.1	453	By default, NSPH01 prints the downlink payload to console port.
34.1	454
37.1	455	[[image:image-20220907154636-17.png]]
34.1	456
	457
51.5	458	(% style="color:blue" %)Examples:
34.1	459
51.5	460	* (% style="color:#037691" %) Set TDC
34.1	461
	462	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	463
	464	Payload: 01 00 00 1E TDC=30S
	465
	466	Payload: 01 00 00 3C TDC=60S
	467
51.5	468	* (% style="color:#037691" %) Reset
34.1	469
42.1	470	If payload = 0x04FF, it will reset the NSPH01
34.1	471
51.5	472	* (% style="color:#037691" %) INTMOD
34.1	473
	474	Downlink Payload: 06000003, Set AT+INTMOD=3
	475
51.5	476
	477
44.1	478	== 2.6 LED Indicator ==
34.1	479
51.5	480
34.1	481	The NSPH01 has an internal LED which is to show the status of different state.
	482
	483	* 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)
	484	* Then the LED will be on for 1 second means device is boot normally.
	485	* After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
	486	* For each uplink probe, LED will be on for 500ms.
	487
	488
51.10	489
51.5	490	== 2.7 Installation and Maintain ==
	491
	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
	500	=== 2.7.2 Measurement ===
	501
	502
51.7	503	(% style="color:#037691" %)Measurement the soil surface:
34.1	504
51.5	505
34.1	506	[[image:image-20220907154700-18.png]]
	507
	508	Choose the proper measuring position. Split the surface soil according to the measured deep.
	509
	510	Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
	511
	512	Slowly insert the probe to the measure point. Don't use large force which will break the probe. Make sure not shake when inserting.
	513
	514	Put soil over the probe after insert. And start to measure.
	515
51.5	516
51.7	517	(% style="color:#037691" %)Measurement inside soil:
34.1	518
	519	Dig a hole with diameter > 20CM.
	520
	521	Insert the probe inside, method like measure the surface.
	522
	523
51.5	524
	525	=== 2.7.3 Maintain Probe ===
	526
	527
34.1	528	1. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
	529	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.
	530	1. Probe reference electrode is also no strong, need to avoid strong force or hitting.
	531	1. User should keep reference electrode wet while not use.
	532	1. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
	533	1. The probe is IP68 can be put in water.
	534
51.10	535
	536
51.5	537	== 2.8 PH and Temperature alarm function ==
	538
	539
51.7	540	(% style="color:#037691" %)➢ AT Command:
51.5	541
51.7	542	(% style="color:blue" %)AT+ PHALARM=min,max
51.5	543
34.1	544	² When min=3, and max≠0, Alarm higher than max
	545
	546	² When min≠0, and max=0, Alarm lower than min
	547
	548	² When min≠0 and max≠0, Alarm higher than max or lower than min
	549
	550
51.7	551	(% style="color:blue" %)Example:
34.1	552
51.5	553	AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
	554
34.1	555	AT+ TEMPALARM=min,max
	556
	557	² When min=0, and max≠0, Alarm higher than max
	558
	559	² When min≠0, and max=0, Alarm lower than min
	560
	561	² When min≠0 and max≠0, Alarm higher than max or lower than min
	562
	563
51.7	564	(% style="color:blue" %)Example:
34.1	565
51.5	566	AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
34.1	567
51.5	568
	569
51.7	570	== 2.9 Set the number of data to be uploaded and the recording time ==
34.1	571
	572
51.7	573	(% style="color:#037691" %)➢ AT Command:
34.1	574
51.7	575	* (% 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)
	576	* (% 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	577
47.1	578
53.1	579	This link explains the relationship between TR, NOUD and TDC more clearly : [[https:~~/~~/www.processon.com/view/link/6340e606e401fd390891af87>>url:https://www.processon.com/view/link/6340e606e401fd390891af87]]
51.5	580
51.7	581	== 2.10 Read or Clear cached data ==
34.1	582
	583
51.7	584	(% style="color:#037691" %)➢ AT Command:
51.5	585
51.7	586	* (% style="color:blue" %)AT+CDP (%%) ~/~/ Read cached data
51.9	587	* (% style="color:blue" %)AT+CDP=0 (%%) ~/~/ Clear cached data
51.5	588
	589
34.1	590	[[image:image-20220907154700-19.png]]
	591
	592
	593
51.5	594	== 2.11 Calibration ==
34.1	595
	596
	597	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).
	598
	599	After stable, user can use below command to calibrate.
	600
51.5	601
34.1	602	[[image:image-20220907154700-20.png]]
	603
51.5	604
	605
44.1	606	== 2.12 Firmware Change Log ==
34.1	607
51.5	608
51.11	609	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	610
51.7	611	Upgrade Instruction: [[Upgrade Firmware>>\|\|anchor="H5.1200BHowtoUpgradeFirmware"]]
34.1	612
51.5	613
	614
44.1	615	== 2.13 Battery Analysis ==
34.1	616
51.5	617
44.1	618	=== 2.13.1 Battery Type ===
34.1	619
51.5	620
34.1	621	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.
	622
	623	The battery is designed to last for several years depends on the actually use environment and update interval.
	624
47.1	625	The battery-related documents as below:
34.1	626
	627	* [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	628	* [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	629	* [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	630
	631	[[image:image-20220907154700-21.png]]
	632
51.5	633
	634
44.1	635	=== 2.13.2 Power consumption Analyze ===
34.1	636
51.5	637
34.1	638	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.
	639
	640	Instruction to use as below:
	641
51.7	642	(% 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	643
51.8	644	(% style="color:blue" %)Step 2: (%%) Open it and choose
34.1	645
	646	* Product Model
	647	* Uplink Interval
	648	* Working Mode
	649
	650	And the Life expectation in difference case will be shown on the right.
	651
51.6	652
34.1	653	[[image:image-20220907154700-22.jpeg]]
	654
	655
	656
51.5	657
44.1	658	=== 2.13.3 Battery Note ===
34.1	659
51.5	660
34.1	661	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.
	662
51.5	663
	664
44.1	665	=== 2.13.4 Replace the battery ===
34.1	666
51.5	667
34.1	668	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).
	669
51.5	670
	671
44.1	672	= 3. Access NB-IoT Module =
34.1	673
51.5	674
34.1	675	Users can directly access the AT command set of the NB-IoT module.
	676
	677	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/]]
	678
51.5	679
34.1	680	[[image:image-20220907154700-23.png]]
	681
	682
	683
51.5	684
44.1	685	= 4. Using the AT Commands =
34.1	686
51.5	687
44.1	688	== 4.1 Access AT Commands ==
34.1	689
51.5	690
34.1	691	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]]
	692
	693	AT+<CMD>? : Help on <CMD>
	694
	695	AT+<CMD> : Run <CMD>
	696
	697	AT+<CMD>=<value> : Set the value
	698
	699	AT+<CMD>=? : Get the value
	700
51.5	701
51.7	702	(% style="color:#037691" %)General Commands
34.1	703
	704	AT : Attention
	705
	706	AT? : Short Help
	707
	708	ATZ : MCU Reset
	709
	710	AT+TDC : Application Data Transmission Interval
	711
	712	AT+CFG : Print all configurations
	713
	714	AT+CFGMOD : Working mode selection
	715
	716	AT+INTMOD : Set the trigger interrupt mode
	717
	718	AT+5VT : Set extend the time of 5V power
	719
	720	AT+PRO : Choose agreement
	721
	722	AT+RXDL : Extend the sending and receiving time
	723
	724	AT+SERVADDR : Server Address
	725
	726	AT+TR : Get or Set record time"
	727
50.1	728	AT+APN : Get or set the APN
34.1	729
50.1	730	AT+FBAND : Get or Set whether to automatically modify the frequency band
	731
	732	AT+DNSCFG : Get or Set DNS Server
	733
	734	AT+GETSENSORVALUE : Returns the current sensor measurement
	735
34.1	736	AT+NOUD : Get or Set the number of data to be uploaded
	737
	738	AT+CDP : Read or Clear cached data
	739
	740	AT+TEMPALARM : Get or Set alarm of temp
	741
	742	AT+PHALARM : Get or Set alarm of PH
	743
	744	AT+ PHCAL : calibrate PH value
	745
	746
51.7	747	(% style="color:#037691" %)COAP Management
34.1	748
	749	AT+URI : Resource parameters
	750
51.5	751
51.7	752	(% style="color:#037691" %)UDP Management
34.1	753
	754	AT+CFM : Upload confirmation mode (only valid for UDP)
	755
51.5	756
51.7	757	(% style="color:#037691" %)MQTT Management
34.1	758
	759	AT+CLIENT : Get or Set MQTT client
	760
	761	AT+UNAME : Get or Set MQTT Username
	762
	763	AT+PWD : Get or Set MQTT password
	764
	765	AT+PUBTOPIC : Get or Set MQTT publish topic
	766
	767	AT+SUBTOPIC : Get or Set MQTT subscription topic
	768
51.5	769
51.7	770	(% style="color:#037691" %)Information
34.1	771
	772	AT+FDR : Factory Data Reset
	773
	774	AT+PWORD : Serial Access Password
	775
51.5	776
	777
44.1	778	= 5. FAQ =
34.1	779
51.5	780
44.1	781	== 5.1 How to Upgrade Firmware ==
34.1	782
51.5	783
34.1	784	User can upgrade the firmware for 1) bug fix, 2) new feature release.
	785
	786	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]]
	787
51.8	788	(% style="color:red" %)Notice, NSPH01 and LSPH01 share the same mother board. They use the same connection and method to update.
34.1	789
51.5	790
	791
44.1	792	== 5.2 Can I calibrate NSPH01 to different soil types? ==
34.1	793
51.5	794
34.1	795	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]].
	796
51.5	797
	798
44.1	799	= 6. Trouble Shooting =
34.1	800
51.5	801
44.1	802	== 6.1 Connection problem when uploading firmware ==
34.1	803
51.5	804
34.1	805	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]]
	806
51.5	807
	808
44.1	809	== 6.2 AT Command input doesn't work ==
34.1	810
	811
51.7	812	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	813
	814
	815
44.1	816	= 7. Order Info =
34.1	817
51.5	818
34.1	819	Part Number: NSPH01
	820
51.5	821
	822
44.1	823	= 8. Packing Info =
34.1	824
51.5	825
34.1	826	Package Includes:
	827
47.1	828	* NSPH01 NB-IoT pH Sensor x 1
34.1	829	* External antenna x 1
	830
	831	Dimension and weight:
	832
51.10	833	* Device Size: cm
	834	* Device Weight: g
	835	* Package Size / pcs : cm
	836	* Weight / pcs : g
34.1	837
51.10	838
	839
44.1	840	= 9. Support =
34.1	841
51.5	842
34.1	843	* 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.
	844	* 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]]
	845
	846

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

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