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

Version 51.10 by Xiaoling on 2022/09/12 15:42

version	line-number	content
3.1	1	(% style="text-align:center" %)
50.2	2	[[image:)YK]Y_LZJIO]J2~~VA}OQJM2.png\|\|height="442" width="410"]]
10.1	3
44.3	4	Table of Contents:
44.2	5
	6	{{toc/}}
	7
	8
	9
50.3	10	= 1. Introduction =
10.1	11
50.2	12
50.3	13	== 1.1 What is NSPH01 Soil pH Sensor ==
10.1	14
	15
50.3	16	The Dragino NSPH01 is a (% style="color:blue" %)NB-IoT soil pH sensor(%%) for IoT of Agriculture. It is designed to measure the soil pH and soil temperature, so to send to the platform to analyze the soil acid or alkali level. The probe is IP68 waterproof.
10.1	17
50.3	18	NSPH01 probe is made by Solid AgCl reference electrode and Pure metal pH sensitive electrode. It can detect soil's (% style="color:blue" %)pH (%%)with high accuracy and stable value. The NSPH01 probe can be buried into soil for long time use.
50.2	19
10.1	20	NarrowBand-Internet of Things (NB-IoT) is a standards-based low power wide area (LPWA) technology developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage.
50.3	21	\\NSPH01 supports different uplink methods include (% style="color:blue" %)TCP,MQTT,UDP and CoAP (%%)for different application requirement.
	22	\\NSPH01 is powered by (% style="color:blue" %)8500mAh Li-SOCI2 battery(%%), It is designed for long term use up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method)
	23	\\To use NSPH01, user needs to check if there is NB-IoT coverage in the installation area and with the bands NSPH01 supports. If the local operator supports it, user needs to get a (% style="color:blue" %)NB-IoT SIM card (%%)from local operator and install NSPH01 to get NB-IoT network connection.
10.1	24
50.3	25
34.1	26	[[image:image-20220907153151-1.png]]
	27
50.3	28
34.1	29	[[image:M_K`YF9`CAYAE\@}3T]FHT$9.png]]
	30
	31
50.3	32
	33	== 1.2 Features ==
	34
	35
34.1	36	* NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
	37	* Monitor soil pH with temperature compensation.
	38	* Monitor soil temperature
46.1	39	* pH and Temperature alarm function
34.1	40	* Monitor Battery Level
	41	* Support pH calibration by end user
	42	* Uplink on periodically
	43	* Downlink to change configure
	44	* IP66 Waterproof Enclosure
	45	* IP68 rate for the Sensor Probe
	46	* Ultra-Low Power consumption
	47	* AT Commands to change parameters
46.1	48	* Micro SIM card slot
34.1	49	* 8500mAh Battery for long term use
	50
51.10	51
	52
	53
44.1	54	== 1.3 Specification ==
34.1	55
	56
50.3	57	(% style="color:#037691" %)Common DC Characteristics:
	58
34.1	59	* Supply Voltage: 2.1v ~~ 3.6v
	60	* Operating Temperature: -40 ~~ 85°C
	61
50.3	62	(% style="color:#037691" %)NB-IoT Spec:
	63
34.1	64	* - B1 @H-FDD: 2100MHz
	65	* - B3 @H-FDD: 1800MHz
	66	* - B8 @H-FDD: 900MHz
	67	* - B5 @H-FDD: 850MHz
	68	* - B20 @H-FDD: 800MHz
	69	* - B28 @H-FDD: 700MHz
	70
51.10	71
	72
	73
50.3	74	== 1.4 Probe Specification ==
	75
	76
	77	(% style="color:#037691" %)Soil pH:
	78
34.1	79	* Range: 3 ~~ 10 pH
	80	* Resolution: 0.01 pH
	81	* Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
	82	* Temperature Compensation Range: 0 ~~ 50℃
	83	* IP68 Protection
	84	* Length: 3.5 meters
	85
51.10	86
	87
50.3	88	(% style="color:#037691" %)Soil Temperature:
	89
34.1	90	* Range -40℃～85℃
	91	* Resolution: 0.1℃
	92	* Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
	93	* IP68 Protection
	94	* Length: 3.5 meters
	95
	96
51.10	97
	98
	99	== 1.5 Applications ==
	100
	101
34.1	102	* Smart Agriculture
	103
	104
50.3	105
51.10	106
	107	== 1.6 Pin mapping and power on ==
	108
	109
34.1	110	[[image:image-20220907153300-2.png]]
	111
	112
50.3	113
44.1	114	= 2. Use NSPH01 to communicate with IoT Server =
34.1	115
50.3	116
44.1	117	== 2.1 How it works ==
34.1	118
50.3	119
34.1	120	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.
	121
	122	The diagram below shows the working flow in default firmware of NSPH01:
	123
50.3	124
34.1	125	[[image:image-20220907153416-3.png]]
	126
50.3	127
	128
44.1	129	== 2.2 Configure the NSPH01 ==
34.1	130
50.3	131
44.1	132	=== 2.2.1 Test Requirement ===
34.1	133
50.3	134
46.1	135	To use NSPH01 in the field, make sure meet below requirements:
34.1	136
	137	* Your local operator has already distributed a NB-IoT Network there.
	138	* The local NB-IoT network used the band that NSPH01 supports.
	139	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
	140
46.1	141	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	142
50.3	143
34.1	144	[[image:image-20220907153445-4.png]]
	145
	146
50.3	147
44.1	148	=== 2.2.2 Insert SIM card ===
34.1	149
50.3	150
47.1	151	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	152
	153	[[image:image-20220907153505-5.png]]
	154
50.3	155
	156
44.1	157	=== 2.2.3 Connect USB – TTL to NSPH01 to configure it ===
34.1	158
	159
51.2	160	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	161
	162
51.2	163	(% style="color:blue" %)Connection:
34.1	164
51.2	165	~ (% style="background-color:yellow" %) USB TTL GND <~-~-~-~-> GND(%%)
34.1	166
51.2	167	~ (% style="background-color:yellow" %) USB TTL TXD <~-~-~-~-> UART_RXD(%%)
	168
	169	~ (% style="background-color:yellow" %) USB TTL RXD <~-~-~-~-> UART_TXD(%%)
	170
	171
34.1	172	In the PC, use below serial tool settings:
	173
51.2	174	* Baud: (% style="color:green" %)9600
	175	* Data bits: (% style="color:green" %)8(%%)
	176	* Stop bits: (% style="color:green" %)1
	177	* Parity: (% style="color:green" %)None
	178	* Flow Control: (% style="color:green" %)None
	179	*
34.1	180
51.2	181	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	182
	183
51.2	184	[[image:image-20220912144017-1.png]]
34.1	185
51.2	186
	187	(% 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]]
	188
	189
	190
44.1	191	=== 2.2.4 Use CoAP protocol to uplink data ===
34.1	192
	193
51.2	194	(% style="color:red" %)Note: if you don't have CoAP server, you can refer this link to set up one:(%%) [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
34.1	195
	196
51.2	197	(% style="color:blue" %)Use below commands:
	198
	199	* (% style="color:#037691" %)AT+PRO=1 (%%) ~/~/ Set to use CoAP protocol to uplink
	200	* (% style="color:#037691" %)AT+SERVADDR=120.24.4.116,5683 (%%) ~/~/ to set CoAP server address and port
	201	* (% style="color:#037691" %)AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" (%%) ~/~/ Set COAP resource path
	202
34.1	203	For parameter description, please refer to AT command set
	204
51.2	205
34.1	206	[[image:image-20220907153551-7.png\|\|height="502" width="740"]]
	207
	208
51.2	209	After configure the server address and (% style="color:green" %)reset the device (via AT+ATZ )(%%), NSPH01 will start to uplink sensor values to CoAP server.
	210
	211
34.1	212	[[image:image-20220907153612-8.png\|\|height="529" width="729"]]
	213
	214
51.2	215
44.1	216	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
34.1	217
51.2	218
34.1	219	This feature is supported since firmware version v1.0.1
	220
51.4	221	* (% style="color:blue" %)AT+PRO=2 (%%) ~/~/ Set to use UDP protocol to uplink
	222	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5601 (%%) ~/~/ to set UDP server address and port
	223	* (% style="color:blue" %)AT+CFM=1 (%%) ~/~/ If the server does not respond, this command is unnecessar
	224
34.1	225	[[image:image-20220907153643-9.png\|\|height="401" width="734"]]
	226
51.2	227
34.1	228	[[image:image-20220907153703-10.png\|\|height="309" width="738"]]
	229
	230
51.4	231
44.1	232	=== 2.2.6 Use MQTT protocol to uplink data ===
34.1	233
51.4	234
34.1	235	This feature is supported since firmware version v110
	236
51.4	237	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/ Set to use MQTT protocol to uplink
	238	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/ Set MQTT server address and port
	239	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%) ~/~/ Set up the CLIENT of MQTT
	240	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/ Set the username of MQTT
	241	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/ Set the password of MQTT
	242	* (% style="color:blue" %)AT+PUBTOPIC=NSE01_PUB (%%)~/~/ Set the sending topic of MQTT
	243	* (% style="color:blue" %)AT+SUBTOPIC=NSE01_SUB (%%) ~/~/ Set the subscription topic of MQTT
34.1	244
	245	[[image:image-20220907153739-11.png\|\|height="491" width="764"]]
	246
51.3	247
34.1	248	[[image:image-20220907153751-12.png\|\|height="555" width="769"]]
	249
51.4	250
34.1	251	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.
	252
51.3	253
	254
	255
44.1	256	=== 2.2.7 Use TCP protocol to uplink data ===
34.1	257
51.4	258
34.1	259	This feature is supported since firmware version v110
	260
51.4	261	* (% style="color:blue" %)AT+PRO=4 (%%) ~/~/ Set to use TCP protocol to uplink
	262	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5600 (%%) ~/~/ to set TCP server address and port
34.1	263
	264	[[image:image-20220907153818-13.png\|\|height="486" width="668"]]
	265
51.3	266
34.1	267	[[image:image-20220907153827-14.png\|\|height="236" width="684"]]
	268
51.3	269
	270
44.1	271	=== 2.2.8 Change Update Interval ===
34.1	272
51.5	273
47.1	274	Users can use the below command to change the uplink interval.
34.1	275
51.4	276	* (% style="color:blue" %)AT+TDC=7200 (%%) ~/~/ Set Update Interval to 7200s (2 hour)
34.1	277
51.4	278	(% 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	279
47.1	280
51.5	281
44.1	282	== 2.3 Uplink Payload ==
34.1	283
51.5	284
34.1	285	In this mode, uplink payload includes 87 bytes in total by default.
	286
	287	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.
	288
51.5	289	(% border="2" style="background-color:#ffffcc; color:green; width:1160px" %)
	290	\|(% 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
	291	\|(% 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	292
34.1	293	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
	294
	295	[[image:image-20220907153902-15.png\|\|height="581" width="804"]]
	296
	297
	298	The payload is ASCII string, representative same HEX:
	299
49.1	300	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	301
49.1	302	* (% style="color:red" %)Device ID: 0xf868411056754138 = f868411056754138
	303	* (% style="color:blue" %)Version: 0x0064=100=1.0.0
	304	* (% style="color:green" %)BAT: 0x0c78 = 3192 mV = 3.192V
	305	* (% style="color:red" %)Singal: 0x17 = 23
	306	* (% style="color:blue" %)Mod: 0x01 = 1
	307	* (% style="color:green" %)Interrupt: 0x00= 0
34.1	308	* Soil PH: 0x0225= 549 = 5.49
51.5	309	* Soil Temperature: 0x010B =267=26.7 °C
48.1	310	* Time stamp : 0x6315537b =1662342011 ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
39.1	311	* Soil Temperature,Soil PH,Time stamp : 010b0226631550fb
49.1	312	* (% style="color:red" %)8 sets of recorded data: Temperature,Soil PH,Time stamp : 010e022663154d77,.......
34.1	313
51.10	314
	315
	316
44.1	317	== 2.4 Payload Explanation and Sensor Interface ==
34.1	318
51.5	319
44.1	320	=== 2.4.1 Device ID ===
34.1	321
51.5	322
34.1	323	By default, the Device ID equal to the last 15 bits of IMEI.
	324
51.4	325	User can use (% style="color:blue" %)AT+DEUI (%%)to set Device ID
34.1	326
51.5	327
34.1	328	Example:
	329
	330	AT+DEUI=868411056754138
	331
	332	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
	333
51.5	334
	335
44.1	336	=== 2.4.2 Version Info ===
34.1	337
51.5	338
34.1	339	Specify the software version: 0x64=100, means firmware version 1.00.
	340
	341	For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
	342
51.5	343
	344
44.1	345	=== 2.4.3 Battery Info ===
34.1	346
51.5	347
34.1	348	Check the battery voltage for NSPH01.
	349
	350	Ex1: 0x0B45 = 2885mV
	351
	352	Ex2: 0x0B49 = 2889mV
	353
51.5	354
	355
44.1	356	=== 2.4.4 Signal Strength ===
34.1	357
51.5	358
34.1	359	NB-IoT Network signal Strength.
	360
	361	Ex1: 0x1d = 29
	362
	363	0 -113dBm or less
	364
	365	1 -111dBm
	366
	367	2...30 -109dBm... -53dBm
	368
	369	31 -51dBm or greater
	370
	371	99 Not known or not detectable
	372
51.5	373
	374
44.1	375	=== 2.4.5 Soil PH ===
34.1	376
51.5	377
34.1	378	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.
	379
51.9	380	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	381
51.9	382	(% style="color:blue" %)0229(H) = 549(D) /100 = 5.49.
34.1	383
51.5	384
	385
44.1	386	=== 2.4.6 Soil Temperature ===
34.1	387
51.5	388
51.9	389	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	390
51.9	391
34.1	392	Example:
	393
40.1	394	If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
34.1	395
40.1	396	If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
34.1	397
51.5	398
	399
44.1	400	=== 2.4.7 Timestamp ===
34.1	401
51.5	402
34.1	403	Time stamp : 0x6315537b =1662342011
	404
	405	Convert Unix timestamp to time 2022-9-5 9:40:11.
	406
51.5	407
	408
44.1	409	=== 2.4.8 Digital Interrupt ===
34.1	410
	411
51.5	412	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.
	413
34.1	414	The command is:
	415
51.5	416	(% 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	417
	418	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.
	419
	420
51.9	421	Example:
	422
34.1	423	0x(00): Normal uplink packet.
	424
	425	0x(01): Interrupt Uplink Packet.
	426
51.5	427
	428
44.1	429	=== 2.4.9 +5V Output ===
34.1	430
51.5	431
34.1	432	NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling.
	433
	434	The 5V output time can be controlled by AT Command.
	435
51.5	436	(% style="color:blue" %)AT+5VT=1000
34.1	437
	438	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	439
	440
51.5	441
44.1	442	== 2.5 Downlink Payload ==
34.1	443
51.5	444
41.1	445	By default, NSPH01 prints the downlink payload to console port.
34.1	446
37.1	447	[[image:image-20220907154636-17.png]]
34.1	448
	449
51.5	450	(% style="color:blue" %)Examples:
34.1	451
51.5	452	* (% style="color:#037691" %) Set TDC
34.1	453
	454	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	455
	456	Payload: 01 00 00 1E TDC=30S
	457
	458	Payload: 01 00 00 3C TDC=60S
	459
51.5	460	* (% style="color:#037691" %) Reset
34.1	461
42.1	462	If payload = 0x04FF, it will reset the NSPH01
34.1	463
51.5	464	* (% style="color:#037691" %) INTMOD
34.1	465
	466	Downlink Payload: 06000003, Set AT+INTMOD=3
	467
51.5	468
	469
44.1	470	== 2.6 LED Indicator ==
34.1	471
51.5	472
34.1	473	The NSPH01 has an internal LED which is to show the status of different state.
	474
	475	* 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)
	476	* Then the LED will be on for 1 second means device is boot normally.
	477	* After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
	478	* For each uplink probe, LED will be on for 500ms.
	479
	480
51.10	481
	482
51.5	483	== 2.7 Installation and Maintain ==
	484
	485
	486	=== 2.7.1 Before measurement ===
	487
	488
34.1	489	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.
	490
	491
51.5	492
	493	=== 2.7.2 Measurement ===
	494
	495
51.7	496	(% style="color:#037691" %)Measurement the soil surface:
34.1	497
51.5	498
34.1	499	[[image:image-20220907154700-18.png]]
	500
	501	Choose the proper measuring position. Split the surface soil according to the measured deep.
	502
	503	Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
	504
	505	Slowly insert the probe to the measure point. Don't use large force which will break the probe. Make sure not shake when inserting.
	506
	507	Put soil over the probe after insert. And start to measure.
	508
51.5	509
51.7	510	(% style="color:#037691" %)Measurement inside soil:
34.1	511
	512	Dig a hole with diameter > 20CM.
	513
	514	Insert the probe inside, method like measure the surface.
	515
	516
51.5	517
	518	=== 2.7.3 Maintain Probe ===
	519
	520
34.1	521	1. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
	522	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.
	523	1. Probe reference electrode is also no strong, need to avoid strong force or hitting.
	524	1. User should keep reference electrode wet while not use.
	525	1. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
	526	1. The probe is IP68 can be put in water.
	527
51.10	528
	529
	530
51.5	531	== 2.8 PH and Temperature alarm function ==
	532
	533
51.7	534	(% style="color:#037691" %)➢ AT Command:
51.5	535
51.7	536	(% style="color:blue" %)AT+ PHALARM=min,max
51.5	537
34.1	538	² When min=3, 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
51.7	545	(% style="color:blue" %)Example:
34.1	546
51.5	547	AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
	548
34.1	549	AT+ TEMPALARM=min,max
	550
	551	² When min=0, and max≠0, Alarm higher than max
	552
	553	² When min≠0, and max=0, Alarm lower than min
	554
	555	² When min≠0 and max≠0, Alarm higher than max or lower than min
	556
	557
51.7	558	(% style="color:blue" %)Example:
34.1	559
51.5	560	AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
34.1	561
51.5	562
	563
51.7	564	== 2.9 Set the number of data to be uploaded and the recording time ==
34.1	565
	566
51.7	567	(% style="color:#037691" %)➢ AT Command:
34.1	568
51.7	569	* (% 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)
	570	* (% 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	571
47.1	572
51.5	573
51.10	574
51.7	575	== 2.10 Read or Clear cached data ==
34.1	576
	577
51.7	578	(% style="color:#037691" %)➢ AT Command:
51.5	579
51.7	580	* (% style="color:blue" %)AT+CDP (%%) ~/~/ Read cached data
51.9	581	* (% style="color:blue" %)AT+CDP=0 (%%) ~/~/ Clear cached data
51.5	582
	583
34.1	584	[[image:image-20220907154700-19.png]]
	585
	586
	587
51.5	588	== 2.11 Calibration ==
34.1	589
	590
	591	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).
	592
	593	After stable, user can use below command to calibrate.
	594
51.5	595
34.1	596	[[image:image-20220907154700-20.png]]
	597
51.5	598
	599
44.1	600	== 2.12 Firmware Change Log ==
34.1	601
51.5	602
34.1	603	Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0>>url:https://www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0]]
	604
51.7	605	Upgrade Instruction: [[Upgrade Firmware>>\|\|anchor="H5.1200BHowtoUpgradeFirmware"]]
34.1	606
51.5	607
	608
44.1	609	== 2.13 Battery Analysis ==
34.1	610
51.5	611
44.1	612	=== 2.13.1 Battery Type ===
34.1	613
51.5	614
34.1	615	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.
	616
	617	The battery is designed to last for several years depends on the actually use environment and update interval.
	618
47.1	619	The battery-related documents as below:
34.1	620
	621	* [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	622	* [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	623	* [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	624
	625	[[image:image-20220907154700-21.png]]
	626
51.5	627
	628
44.1	629	=== 2.13.2 Power consumption Analyze ===
34.1	630
51.5	631
34.1	632	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.
	633
	634	Instruction to use as below:
	635
51.7	636	(% 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	637
51.8	638	(% style="color:blue" %)Step 2: (%%) Open it and choose
34.1	639
	640	* Product Model
	641	* Uplink Interval
	642	* Working Mode
	643
	644	And the Life expectation in difference case will be shown on the right.
	645
51.6	646
34.1	647	[[image:image-20220907154700-22.jpeg]]
	648
	649
	650
51.5	651
44.1	652	=== 2.13.3 Battery Note ===
34.1	653
51.5	654
34.1	655	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.
	656
51.5	657
	658
44.1	659	=== 2.13.4 Replace the battery ===
34.1	660
51.5	661
34.1	662	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).
	663
51.5	664
	665
44.1	666	= 3. Access NB-IoT Module =
34.1	667
51.5	668
34.1	669	Users can directly access the AT command set of the NB-IoT module.
	670
	671	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/]]
	672
51.5	673
34.1	674	[[image:image-20220907154700-23.png]]
	675
	676
	677
51.5	678
44.1	679	= 4. Using the AT Commands =
34.1	680
51.5	681
44.1	682	== 4.1 Access AT Commands ==
34.1	683
51.5	684
34.1	685	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]]
	686
	687	AT+<CMD>? : Help on <CMD>
	688
	689	AT+<CMD> : Run <CMD>
	690
	691	AT+<CMD>=<value> : Set the value
	692
	693	AT+<CMD>=? : Get the value
	694
51.5	695
51.7	696	(% style="color:#037691" %)General Commands
34.1	697
	698	AT : Attention
	699
	700	AT? : Short Help
	701
	702	ATZ : MCU Reset
	703
	704	AT+TDC : Application Data Transmission Interval
	705
	706	AT+CFG : Print all configurations
	707
	708	AT+CFGMOD : Working mode selection
	709
	710	AT+INTMOD : Set the trigger interrupt mode
	711
	712	AT+5VT : Set extend the time of 5V power
	713
	714	AT+PRO : Choose agreement
	715
	716	AT+RXDL : Extend the sending and receiving time
	717
	718	AT+SERVADDR : Server Address
	719
	720	AT+TR : Get or Set record time"
	721
50.1	722	AT+APN : Get or set the APN
34.1	723
50.1	724	AT+FBAND : Get or Set whether to automatically modify the frequency band
	725
	726	AT+DNSCFG : Get or Set DNS Server
	727
	728	AT+GETSENSORVALUE : Returns the current sensor measurement
	729
34.1	730	AT+NOUD : Get or Set the number of data to be uploaded
	731
	732	AT+CDP : Read or Clear cached data
	733
	734	AT+TEMPALARM : Get or Set alarm of temp
	735
	736	AT+PHALARM : Get or Set alarm of PH
	737
	738	AT+ PHCAL : calibrate PH value
	739
	740
51.7	741	(% style="color:#037691" %)COAP Management
34.1	742
	743	AT+URI : Resource parameters
	744
51.5	745
51.7	746	(% style="color:#037691" %)UDP Management
34.1	747
	748	AT+CFM : Upload confirmation mode (only valid for UDP)
	749
51.5	750
51.7	751	(% style="color:#037691" %)MQTT Management
34.1	752
	753	AT+CLIENT : Get or Set MQTT client
	754
	755	AT+UNAME : Get or Set MQTT Username
	756
	757	AT+PWD : Get or Set MQTT password
	758
	759	AT+PUBTOPIC : Get or Set MQTT publish topic
	760
	761	AT+SUBTOPIC : Get or Set MQTT subscription topic
	762
51.5	763
51.7	764	(% style="color:#037691" %)Information
34.1	765
	766	AT+FDR : Factory Data Reset
	767
	768	AT+PWORD : Serial Access Password
	769
51.5	770
	771
44.1	772	= 5. FAQ =
34.1	773
51.5	774
44.1	775	== 5.1 How to Upgrade Firmware ==
34.1	776
51.5	777
34.1	778	User can upgrade the firmware for 1) bug fix, 2) new feature release.
	779
	780	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]]
	781
51.8	782	(% style="color:red" %)Notice, NSPH01 and LSPH01 share the same mother board. They use the same connection and method to update.
34.1	783
51.5	784
	785
44.1	786	== 5.2 Can I calibrate NSPH01 to different soil types? ==
34.1	787
51.5	788
34.1	789	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]].
	790
51.5	791
	792
44.1	793	= 6. Trouble Shooting =
34.1	794
51.5	795
44.1	796	== 6.1 Connection problem when uploading firmware ==
34.1	797
51.5	798
34.1	799	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]]
	800
51.5	801
	802
44.1	803	== 6.2 AT Command input doesn't work ==
34.1	804
	805
51.7	806	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	807
	808
	809
44.1	810	= 7. Order Info =
34.1	811
51.5	812
34.1	813	Part Number: NSPH01
	814
51.5	815
	816
44.1	817	= 8. Packing Info =
34.1	818
51.5	819
34.1	820	Package Includes:
	821
47.1	822	* NSPH01 NB-IoT pH Sensor x 1
34.1	823	* External antenna x 1
	824
	825	Dimension and weight:
	826
51.10	827	* Device Size: cm
	828	* Device Weight: g
	829	* Package Size / pcs : cm
	830	* Weight / pcs : g
34.1	831
51.10	832
	833
	834
44.1	835	= 9. Support =
34.1	836
51.5	837
34.1	838	* 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.
	839	* 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]]
	840
	841

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

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