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

Version 51.6 by Xiaoling on 2022/09/12 15:28

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
44.1	51	== 1.3 Specification ==
34.1	52
	53
50.3	54	(% style="color:#037691" %)Common DC Characteristics:
	55
34.1	56	* Supply Voltage: 2.1v ~~ 3.6v
	57	* Operating Temperature: -40 ~~ 85°C
	58
50.3	59	(% style="color:#037691" %)NB-IoT Spec:
	60
34.1	61	* - B1 @H-FDD: 2100MHz
	62	* - B3 @H-FDD: 1800MHz
	63	* - B8 @H-FDD: 900MHz
	64	* - B5 @H-FDD: 850MHz
	65	* - B20 @H-FDD: 800MHz
	66	* - B28 @H-FDD: 700MHz
	67
50.3	68	== 1.4 Probe Specification ==
	69
	70
	71	(% style="color:#037691" %)Soil pH:
	72
34.1	73	* Range: 3 ~~ 10 pH
	74	* Resolution: 0.01 pH
	75	* Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
	76	* Temperature Compensation Range: 0 ~~ 50℃
	77	* IP68 Protection
	78	* Length: 3.5 meters
	79
50.3	80	(% style="color:#037691" %)Soil Temperature:
	81
34.1	82	* Range -40℃～85℃
	83	* Resolution: 0.1℃
	84	* Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
	85	* IP68 Protection
	86	* Length: 3.5 meters
	87
44.1	88	== 1.5 Applications ==
34.1	89
	90	* Smart Agriculture
	91
44.1	92	== 1.6 Pin mapping and power on ==
34.1	93
50.3	94
34.1	95	[[image:image-20220907153300-2.png]]
	96
	97
50.3	98
44.1	99	= 2. Use NSPH01 to communicate with IoT Server =
34.1	100
50.3	101
44.1	102	== 2.1 How it works ==
34.1	103
50.3	104
34.1	105	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.
	106
	107	The diagram below shows the working flow in default firmware of NSPH01:
	108
50.3	109
34.1	110	[[image:image-20220907153416-3.png]]
	111
50.3	112
	113
44.1	114	== 2.2 Configure the NSPH01 ==
34.1	115
50.3	116
44.1	117	=== 2.2.1 Test Requirement ===
34.1	118
50.3	119
46.1	120	To use NSPH01 in the field, make sure meet below requirements:
34.1	121
	122	* Your local operator has already distributed a NB-IoT Network there.
	123	* The local NB-IoT network used the band that NSPH01 supports.
	124	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
	125
46.1	126	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.
34.1	127
50.3	128
34.1	129	[[image:image-20220907153445-4.png]]
	130
	131
50.3	132
44.1	133	=== 2.2.2 Insert SIM card ===
34.1	134
50.3	135
47.1	136	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	137
	138	[[image:image-20220907153505-5.png]]
	139
50.3	140
	141
44.1	142	=== 2.2.3 Connect USB – TTL to NSPH01 to configure it ===
34.1	143
	144
51.2	145	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	146
	147
51.2	148	(% style="color:blue" %)Connection:
34.1	149
51.2	150	~ (% style="background-color:yellow" %) USB TTL GND <~-~-~-~-> GND(%%)
34.1	151
51.2	152	~ (% style="background-color:yellow" %) USB TTL TXD <~-~-~-~-> UART_RXD(%%)
	153
	154	~ (% style="background-color:yellow" %) USB TTL RXD <~-~-~-~-> UART_TXD(%%)
	155
	156
34.1	157	In the PC, use below serial tool settings:
	158
51.2	159	* Baud: (% style="color:green" %)9600
	160	* Data bits: (% style="color:green" %)8(%%)
	161	* Stop bits: (% style="color:green" %)1
	162	* Parity: (% style="color:green" %)None
	163	* Flow Control: (% style="color:green" %)None
	164	*
34.1	165
51.2	166	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	167
	168
51.2	169	[[image:image-20220912144017-1.png]]
34.1	170
51.2	171
	172	(% 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]]
	173
	174
	175
44.1	176	=== 2.2.4 Use CoAP protocol to uplink data ===
34.1	177
	178
51.2	179	(% 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	180
	181
51.2	182	(% style="color:blue" %)Use below commands:
	183
	184	* (% style="color:#037691" %)AT+PRO=1 (%%) ~/~/ Set to use CoAP protocol to uplink
	185	* (% style="color:#037691" %)AT+SERVADDR=120.24.4.116,5683 (%%) ~/~/ to set CoAP server address and port
	186	* (% style="color:#037691" %)AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" (%%) ~/~/ Set COAP resource path
	187
34.1	188	For parameter description, please refer to AT command set
	189
51.2	190
34.1	191	[[image:image-20220907153551-7.png\|\|height="502" width="740"]]
	192
	193
51.2	194	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.
	195
	196
34.1	197	[[image:image-20220907153612-8.png\|\|height="529" width="729"]]
	198
	199
51.2	200
44.1	201	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
34.1	202
51.2	203
34.1	204	This feature is supported since firmware version v1.0.1
	205
51.4	206	* (% style="color:blue" %)AT+PRO=2 (%%) ~/~/ Set to use UDP protocol to uplink
	207	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5601 (%%) ~/~/ to set UDP server address and port
	208	* (% style="color:blue" %)AT+CFM=1 (%%) ~/~/ If the server does not respond, this command is unnecessar
	209
	210
34.1	211	[[image:image-20220907153643-9.png\|\|height="401" width="734"]]
	212
51.2	213
34.1	214	[[image:image-20220907153703-10.png\|\|height="309" width="738"]]
	215
	216
51.4	217
44.1	218	=== 2.2.6 Use MQTT protocol to uplink data ===
34.1	219
51.4	220
34.1	221	This feature is supported since firmware version v110
	222
51.4	223	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/ Set to use MQTT protocol to uplink
	224	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/ Set MQTT server address and port
	225	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%) ~/~/ Set up the CLIENT of MQTT
	226	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/ Set the username of MQTT
	227	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/ Set the password of MQTT
	228	* (% style="color:blue" %)AT+PUBTOPIC=NSE01_PUB (%%)~/~/ Set the sending topic of MQTT
	229	* (% style="color:blue" %)AT+SUBTOPIC=NSE01_SUB (%%) ~/~/ Set the subscription topic of MQTT
34.1	230
51.3	231
34.1	232	[[image:image-20220907153739-11.png\|\|height="491" width="764"]]
	233
51.3	234
34.1	235	[[image:image-20220907153751-12.png\|\|height="555" width="769"]]
	236
51.4	237
34.1	238	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.
	239
51.3	240
	241
	242
44.1	243	=== 2.2.7 Use TCP protocol to uplink data ===
34.1	244
51.4	245
34.1	246	This feature is supported since firmware version v110
	247
51.4	248	* (% style="color:blue" %)AT+PRO=4 (%%) ~/~/ Set to use TCP protocol to uplink
	249	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5600 (%%) ~/~/ to set TCP server address and port
34.1	250
51.3	251
34.1	252	[[image:image-20220907153818-13.png\|\|height="486" width="668"]]
	253
51.3	254
34.1	255	[[image:image-20220907153827-14.png\|\|height="236" width="684"]]
	256
51.3	257
	258
44.1	259	=== 2.2.8 Change Update Interval ===
34.1	260
51.5	261
47.1	262	Users can use the below command to change the uplink interval.
34.1	263
51.4	264	* (% style="color:blue" %)AT+TDC=7200 (%%) ~/~/ Set Update Interval to 7200s (2 hour)
34.1	265
51.5	266
51.4	267	(% 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	268
47.1	269
51.5	270
44.1	271	== 2.3 Uplink Payload ==
34.1	272
51.5	273
34.1	274	In this mode, uplink payload includes 87 bytes in total by default.
	275
	276	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.
	277
51.5	278	(% border="2" style="background-color:#ffffcc; color:green; width:1160px" %)
	279	\|(% 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
	280	\|(% 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	281
34.1	282	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
	283
	284	[[image:image-20220907153902-15.png\|\|height="581" width="804"]]
	285
	286
	287	The payload is ASCII string, representative same HEX:
	288
49.1	289	0x(% style="color:red" %)f868411056754138(% style="color:blue" %)0064(% style="color:green" %)0c78(% style="color:red" %)17(% style="color:blue" %)01(% style="color:green" %)00(% style="color:red" %)//0225010b6315537b//010b0226631550fb//010e022663154d77//01110225631549f1//011502246315466b//01190223631542e5//011d022163153f62//011e022163153bde//011e022163153859//(%%) where:
34.1	290
49.1	291	* (% style="color:red" %)Device ID: 0xf868411056754138 = f868411056754138
	292	* (% style="color:blue" %)Version: 0x0064=100=1.0.0
	293	* (% style="color:green" %)BAT: 0x0c78 = 3192 mV = 3.192V
	294	* (% style="color:red" %)Singal: 0x17 = 23
	295	* (% style="color:blue" %)Mod: 0x01 = 1
	296	* (% style="color:green" %)Interrupt: 0x00= 0
34.1	297	* Soil PH: 0x0225= 549 = 5.49
51.5	298	* Soil Temperature: 0x010B =267=26.7 °C
48.1	299	* Time stamp : 0x6315537b =1662342011 ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
39.1	300	* Soil Temperature,Soil PH,Time stamp : 010b0226631550fb
49.1	301	* (% style="color:red" %)8 sets of recorded data: Temperature,Soil PH,Time stamp : 010e022663154d77,.......
34.1	302
51.5	303
	304
	305
44.1	306	== 2.4 Payload Explanation and Sensor Interface ==
34.1	307
51.5	308
44.1	309	=== 2.4.1 Device ID ===
34.1	310
51.5	311
34.1	312	By default, the Device ID equal to the last 15 bits of IMEI.
	313
51.4	314	User can use (% style="color:blue" %)AT+DEUI (%%)to set Device ID
34.1	315
51.5	316
34.1	317	Example:
	318
	319	AT+DEUI=868411056754138
	320
	321	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
	322
51.5	323
	324
44.1	325	=== 2.4.2 Version Info ===
34.1	326
51.5	327
34.1	328	Specify the software version: 0x64=100, means firmware version 1.00.
	329
	330	For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
	331
51.5	332
	333
44.1	334	=== 2.4.3 Battery Info ===
34.1	335
51.5	336
34.1	337	Check the battery voltage for NSPH01.
	338
	339	Ex1: 0x0B45 = 2885mV
	340
	341	Ex2: 0x0B49 = 2889mV
	342
51.5	343
	344
44.1	345	=== 2.4.4 Signal Strength ===
34.1	346
51.5	347
34.1	348	NB-IoT Network signal Strength.
	349
	350	Ex1: 0x1d = 29
	351
	352	0 -113dBm or less
	353
	354	1 -111dBm
	355
	356	2...30 -109dBm... -53dBm
	357
	358	31 -51dBm or greater
	359
	360	99 Not known or not detectable
	361
51.5	362
	363
44.1	364	=== 2.4.5 Soil PH ===
34.1	365
51.5	366
34.1	367	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.
	368
	369	For example, if the data you get from the register is __0x05 0xDC__, the PH content in the soil is
	370
	371	0229(H) = 549(D) /100 = 5.49.
	372
51.5	373
	374
44.1	375	=== 2.4.6 Soil Temperature ===
34.1	376
51.5	377
34.1	378	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 __0x09 0xEC__, the temperature content in the soil is
	379
	380	Example:
	381
40.1	382	If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
34.1	383
40.1	384	If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
34.1	385
51.5	386
	387
44.1	388	=== 2.4.7 Timestamp ===
34.1	389
51.5	390
34.1	391	Time stamp : 0x6315537b =1662342011
	392
	393	Convert Unix timestamp to time 2022-9-5 9:40:11.
	394
51.5	395
	396
44.1	397	=== 2.4.8 Digital Interrupt ===
34.1	398
	399
51.5	400	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.
	401
34.1	402	The command is:
	403
51.5	404	(% 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	405
	406	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.
	407
	408	Example:
	409
	410	0x(00): Normal uplink packet.
	411
	412	0x(01): Interrupt Uplink Packet.
	413
51.5	414
	415
44.1	416	=== 2.4.9 +5V Output ===
34.1	417
51.5	418
34.1	419	NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling.
	420
	421	The 5V output time can be controlled by AT Command.
	422
51.5	423	(% style="color:blue" %)AT+5VT=1000
34.1	424
	425	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	426
	427
51.5	428
44.1	429	== 2.5 Downlink Payload ==
34.1	430
51.5	431
41.1	432	By default, NSPH01 prints the downlink payload to console port.
34.1	433
37.1	434	[[image:image-20220907154636-17.png]]
34.1	435
	436
51.5	437	(% style="color:blue" %)Examples:
34.1	438
51.5	439	* (% style="color:#037691" %) Set TDC
34.1	440
	441	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	442
	443	Payload: 01 00 00 1E TDC=30S
	444
	445	Payload: 01 00 00 3C TDC=60S
	446
51.5	447	* (% style="color:#037691" %) Reset
34.1	448
42.1	449	If payload = 0x04FF, it will reset the NSPH01
34.1	450
51.5	451	* (% style="color:#037691" %) INTMOD
34.1	452
	453	Downlink Payload: 06000003, Set AT+INTMOD=3
	454
51.5	455
	456
44.1	457	== 2.6 LED Indicator ==
34.1	458
51.5	459
34.1	460	The NSPH01 has an internal LED which is to show the status of different state.
	461
	462	* 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)
	463	* Then the LED will be on for 1 second means device is boot normally.
	464	* After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
	465	* For each uplink probe, LED will be on for 500ms.
	466
	467
	468
51.5	469
	470	== 2.7 Installation and Maintain ==
	471
	472
	473	=== 2.7.1 Before measurement ===
	474
	475
34.1	476	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.
	477
	478
51.5	479
	480	=== 2.7.2 Measurement ===
	481
	482
51.6	483	(% style="color:#037691" %)Measurement the soil surface:
34.1	484
51.5	485
34.1	486	[[image:image-20220907154700-18.png]]
	487
	488	Choose the proper measuring position. Split the surface soil according to the measured deep.
	489
	490	Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
	491
	492	Slowly insert the probe to the measure point. Don't use large force which will break the probe. Make sure not shake when inserting.
	493
	494	Put soil over the probe after insert. And start to measure.
	495
51.5	496
51.6	497	(% style="color:#037691" %)Measurement inside soil:
34.1	498
	499	Dig a hole with diameter > 20CM.
	500
	501	Insert the probe inside, method like measure the surface.
	502
	503
51.5	504
	505	=== 2.7.3 Maintain Probe ===
	506
	507
34.1	508	1. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
	509	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.
	510	1. Probe reference electrode is also no strong, need to avoid strong force or hitting.
	511	1. User should keep reference electrode wet while not use.
	512	1. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
	513	1. The probe is IP68 can be put in water.
	514
	515
	516
	517
51.5	518	== 2.8 PH and Temperature alarm function ==
	519
	520
51.6	521	(% style="color:#037691" %)➢ AT Command:
51.5	522
51.6	523	(% style="color:blue" %)AT+ PHALARM=min,max
51.5	524
34.1	525	² When min=3, and max≠0, Alarm higher than max
	526
	527	² When min≠0, and max=0, Alarm lower than min
	528
	529	² When min≠0 and max≠0, Alarm higher than max or lower than min
	530
	531
51.6	532	(% style="color:blue" %)Example:
34.1	533
51.5	534	AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
	535
34.1	536	AT+ TEMPALARM=min,max
	537
	538	² When min=0, and max≠0, Alarm higher than max
	539
	540	² When min≠0, and max=0, Alarm lower than min
	541
	542	² When min≠0 and max≠0, Alarm higher than max or lower than min
	543
	544
51.6	545	(% style="color:blue" %)Example:
34.1	546
51.5	547	AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
34.1	548
51.5	549
	550
44.1	551	== 2.9 Set the number of data to be uploaded and the recording time ==
34.1	552
	553
51.6	554	(% style="color:#037691" %)➢ AT Command:
34.1	555
51.6	556	(% 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)
34.1	557
51.6	558	(% 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.
47.1	559
51.5	560
44.1	561	== 2.10 Read or Clear cached data ==
34.1	562
	563
51.6	564	(% style="color:#037691" %)➢ AT Command:
34.1	565
51.6	566	(% style="color:blue" %)AT+CDP (%%) ~/~/ Read cached data
51.5	567
51.6	568	(% style="color:blue" %)AT+CDP=0 (%%) ~/~/ Clear cached data
51.5	569
	570
34.1	571	[[image:image-20220907154700-19.png]]
	572
	573
	574
51.5	575	== 2.11 Calibration ==
34.1	576
	577
	578	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).
	579
	580	After stable, user can use below command to calibrate.
	581
51.5	582
34.1	583	[[image:image-20220907154700-20.png]]
	584
51.5	585
	586
44.1	587	== 2.12 Firmware Change Log ==
34.1	588
51.5	589
34.1	590	Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0>>url:https://www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0]]
	591
	592	Upgrade Instruction: [[Upgrade Firmware>>path:#H5.1200BHowtoUpgradeFirmware]]
	593
51.5	594
	595
44.1	596	== 2.13 Battery Analysis ==
34.1	597
51.5	598
44.1	599	=== 2.13.1 Battery Type ===
34.1	600
51.5	601
34.1	602	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.
	603
	604	The battery is designed to last for several years depends on the actually use environment and update interval.
	605
47.1	606	The battery-related documents as below:
34.1	607
	608	* [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	609	* [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	610	* [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	611
	612	[[image:image-20220907154700-21.png]]
	613
51.5	614
	615
44.1	616	=== 2.13.2 Power consumption Analyze ===
34.1	617
51.5	618
34.1	619	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.
	620
	621	Instruction to use as below:
	622
51.6	623	(% 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	624
51.6	625	(% style="color:#037691" %)Step 2: (%%) Open it and choose
34.1	626
	627	* Product Model
	628	* Uplink Interval
	629	* Working Mode
	630
	631	And the Life expectation in difference case will be shown on the right.
	632
51.6	633
34.1	634	[[image:image-20220907154700-22.jpeg]]
	635
	636
	637
51.5	638
44.1	639	=== 2.13.3 Battery Note ===
34.1	640
51.5	641
34.1	642	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.
	643
51.5	644
	645
44.1	646	=== 2.13.4 Replace the battery ===
34.1	647
51.5	648
34.1	649	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).
	650
51.5	651
	652
44.1	653	= 3. Access NB-IoT Module =
34.1	654
51.5	655
34.1	656	Users can directly access the AT command set of the NB-IoT module.
	657
	658	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/]]
	659
51.5	660
34.1	661	[[image:image-20220907154700-23.png]]
	662
	663
	664
51.5	665
44.1	666	= 4. Using the AT Commands =
34.1	667
51.5	668
44.1	669	== 4.1 Access AT Commands ==
34.1	670
51.5	671
34.1	672	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]]
	673
	674	AT+<CMD>? : Help on <CMD>
	675
	676	AT+<CMD> : Run <CMD>
	677
	678	AT+<CMD>=<value> : Set the value
	679
	680	AT+<CMD>=? : Get the value
	681
51.5	682
51.6	683	(% style="color:#037691" %)General Commands
34.1	684
	685	AT : Attention
	686
	687	AT? : Short Help
	688
	689	ATZ : MCU Reset
	690
	691	AT+TDC : Application Data Transmission Interval
	692
	693	AT+CFG : Print all configurations
	694
	695	AT+CFGMOD : Working mode selection
	696
	697	AT+INTMOD : Set the trigger interrupt mode
	698
	699	AT+5VT : Set extend the time of 5V power
	700
	701	AT+PRO : Choose agreement
	702
	703	AT+RXDL : Extend the sending and receiving time
	704
	705	AT+SERVADDR : Server Address
	706
	707	AT+TR : Get or Set record time"
	708
50.1	709	AT+APN : Get or set the APN
34.1	710
50.1	711	AT+FBAND : Get or Set whether to automatically modify the frequency band
	712
	713	AT+DNSCFG : Get or Set DNS Server
	714
	715	AT+GETSENSORVALUE : Returns the current sensor measurement
	716
34.1	717	AT+NOUD : Get or Set the number of data to be uploaded
	718
	719	AT+CDP : Read or Clear cached data
	720
	721	AT+TEMPALARM : Get or Set alarm of temp
	722
	723	AT+PHALARM : Get or Set alarm of PH
	724
	725	AT+ PHCAL : calibrate PH value
	726
	727
51.6	728	(% style="color:#037691" %)COAP Management
34.1	729
	730	AT+URI : Resource parameters
	731
51.5	732
51.6	733	(% style="color:#037691" %)UDP Management
34.1	734
	735	AT+CFM : Upload confirmation mode (only valid for UDP)
	736
51.5	737
51.6	738	(% style="color:#037691" %)MQTT Management
34.1	739
	740	AT+CLIENT : Get or Set MQTT client
	741
	742	AT+UNAME : Get or Set MQTT Username
	743
	744	AT+PWD : Get or Set MQTT password
	745
	746	AT+PUBTOPIC : Get or Set MQTT publish topic
	747
	748	AT+SUBTOPIC : Get or Set MQTT subscription topic
	749
51.5	750
51.6	751	(% style="color:#037691" %)Information
34.1	752
	753	AT+FDR : Factory Data Reset
	754
	755	AT+PWORD : Serial Access Password
	756
51.5	757
	758
44.1	759	= 5. FAQ =
34.1	760
51.5	761
44.1	762	== 5.1 How to Upgrade Firmware ==
34.1	763
51.5	764
34.1	765	User can upgrade the firmware for 1) bug fix, 2) new feature release.
	766
	767	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]]
	768
51.6	769	(% style="color:red" %)Notice, NSPH01 and LSPH01 share the same mother board. They use the same connection and method to update.
34.1	770
51.5	771
	772
44.1	773	== 5.2 Can I calibrate NSPH01 to different soil types? ==
34.1	774
51.5	775
34.1	776	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]].
	777
51.5	778
	779
44.1	780	= 6. Trouble Shooting =
34.1	781
51.5	782
44.1	783	== 6.1 Connection problem when uploading firmware ==
34.1	784
51.5	785
34.1	786	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]]
	787
51.5	788
	789
44.1	790	== 6.2 AT Command input doesn't work ==
34.1	791
	792
51.5	793	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.
	794
	795
	796
44.1	797	= 7. Order Info =
34.1	798
51.5	799
34.1	800	Part Number: NSPH01
	801
51.5	802
	803
44.1	804	= 8. Packing Info =
34.1	805
51.5	806
34.1	807	Package Includes:
	808
47.1	809	* NSPH01 NB-IoT pH Sensor x 1
34.1	810	* External antenna x 1
	811
	812	Dimension and weight:
	813
	814	* Size: 195 x 125 x 55 mm
	815	* Weight: 420g
	816
51.5	817
	818
	819
44.1	820	= 9. Support =
34.1	821
51.5	822
34.1	823	* 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.
	824	* 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]]
	825
	826

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

Applications