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

Version 51.9 by Xiaoling on 2022/09/12 15:39

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
34.1	210	[[image:image-20220907153643-9.png\|\|height="401" width="734"]]
	211
51.2	212
34.1	213	[[image:image-20220907153703-10.png\|\|height="309" width="738"]]
	214
	215
51.4	216
44.1	217	=== 2.2.6 Use MQTT protocol to uplink data ===
34.1	218
51.4	219
34.1	220	This feature is supported since firmware version v110
	221
51.4	222	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/ Set to use MQTT protocol to uplink
	223	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/ Set MQTT server address and port
	224	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%) ~/~/ Set up the CLIENT of MQTT
	225	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/ Set the username of MQTT
	226	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/ Set the password of MQTT
	227	* (% style="color:blue" %)AT+PUBTOPIC=NSE01_PUB (%%)~/~/ Set the sending topic of MQTT
	228	* (% style="color:blue" %)AT+SUBTOPIC=NSE01_SUB (%%) ~/~/ Set the subscription topic of MQTT
34.1	229
	230	[[image:image-20220907153739-11.png\|\|height="491" width="764"]]
	231
51.3	232
34.1	233	[[image:image-20220907153751-12.png\|\|height="555" width="769"]]
	234
51.4	235
34.1	236	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.
	237
51.3	238
	239
	240
44.1	241	=== 2.2.7 Use TCP protocol to uplink data ===
34.1	242
51.4	243
34.1	244	This feature is supported since firmware version v110
	245
51.4	246	* (% style="color:blue" %)AT+PRO=4 (%%) ~/~/ Set to use TCP protocol to uplink
	247	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5600 (%%) ~/~/ to set TCP server address and port
34.1	248
	249	[[image:image-20220907153818-13.png\|\|height="486" width="668"]]
	250
51.3	251
34.1	252	[[image:image-20220907153827-14.png\|\|height="236" width="684"]]
	253
51.3	254
	255
44.1	256	=== 2.2.8 Change Update Interval ===
34.1	257
51.5	258
47.1	259	Users can use the below command to change the uplink interval.
34.1	260
51.4	261	* (% style="color:blue" %)AT+TDC=7200 (%%) ~/~/ Set Update Interval to 7200s (2 hour)
34.1	262
51.4	263	(% 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	264
47.1	265
51.5	266
44.1	267	== 2.3 Uplink Payload ==
34.1	268
51.5	269
34.1	270	In this mode, uplink payload includes 87 bytes in total by default.
	271
	272	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.
	273
51.5	274	(% border="2" style="background-color:#ffffcc; color:green; width:1160px" %)
	275	\|(% 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
	276	\|(% 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	277
34.1	278	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
	279
	280	[[image:image-20220907153902-15.png\|\|height="581" width="804"]]
	281
	282
	283	The payload is ASCII string, representative same HEX:
	284
49.1	285	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	286
49.1	287	* (% style="color:red" %)Device ID: 0xf868411056754138 = f868411056754138
	288	* (% style="color:blue" %)Version: 0x0064=100=1.0.0
	289	* (% style="color:green" %)BAT: 0x0c78 = 3192 mV = 3.192V
	290	* (% style="color:red" %)Singal: 0x17 = 23
	291	* (% style="color:blue" %)Mod: 0x01 = 1
	292	* (% style="color:green" %)Interrupt: 0x00= 0
34.1	293	* Soil PH: 0x0225= 549 = 5.49
51.5	294	* Soil Temperature: 0x010B =267=26.7 °C
48.1	295	* Time stamp : 0x6315537b =1662342011 ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
39.1	296	* Soil Temperature,Soil PH,Time stamp : 010b0226631550fb
49.1	297	* (% style="color:red" %)8 sets of recorded data: Temperature,Soil PH,Time stamp : 010e022663154d77,.......
34.1	298
44.1	299	== 2.4 Payload Explanation and Sensor Interface ==
34.1	300
51.5	301
44.1	302	=== 2.4.1 Device ID ===
34.1	303
51.5	304
34.1	305	By default, the Device ID equal to the last 15 bits of IMEI.
	306
51.4	307	User can use (% style="color:blue" %)AT+DEUI (%%)to set Device ID
34.1	308
51.5	309
34.1	310	Example:
	311
	312	AT+DEUI=868411056754138
	313
	314	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
	315
51.5	316
	317
44.1	318	=== 2.4.2 Version Info ===
34.1	319
51.5	320
34.1	321	Specify the software version: 0x64=100, means firmware version 1.00.
	322
	323	For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
	324
51.5	325
	326
44.1	327	=== 2.4.3 Battery Info ===
34.1	328
51.5	329
34.1	330	Check the battery voltage for NSPH01.
	331
	332	Ex1: 0x0B45 = 2885mV
	333
	334	Ex2: 0x0B49 = 2889mV
	335
51.5	336
	337
44.1	338	=== 2.4.4 Signal Strength ===
34.1	339
51.5	340
34.1	341	NB-IoT Network signal Strength.
	342
	343	Ex1: 0x1d = 29
	344
	345	0 -113dBm or less
	346
	347	1 -111dBm
	348
	349	2...30 -109dBm... -53dBm
	350
	351	31 -51dBm or greater
	352
	353	99 Not known or not detectable
	354
51.5	355
	356
44.1	357	=== 2.4.5 Soil PH ===
34.1	358
51.5	359
34.1	360	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.
	361
51.9	362	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	363
51.9	364	(% style="color:blue" %)0229(H) = 549(D) /100 = 5.49.
34.1	365
51.5	366
	367
44.1	368	=== 2.4.6 Soil Temperature ===
34.1	369
51.5	370
51.9	371	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	372
51.9	373
34.1	374	Example:
	375
40.1	376	If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
34.1	377
40.1	378	If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
34.1	379
51.5	380
	381
44.1	382	=== 2.4.7 Timestamp ===
34.1	383
51.5	384
34.1	385	Time stamp : 0x6315537b =1662342011
	386
	387	Convert Unix timestamp to time 2022-9-5 9:40:11.
	388
51.5	389
	390
44.1	391	=== 2.4.8 Digital Interrupt ===
34.1	392
	393
51.5	394	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.
	395
34.1	396	The command is:
	397
51.5	398	(% 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	399
	400	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.
	401
	402
51.9	403	Example:
	404
34.1	405	0x(00): Normal uplink packet.
	406
	407	0x(01): Interrupt Uplink Packet.
	408
51.5	409
	410
44.1	411	=== 2.4.9 +5V Output ===
34.1	412
51.5	413
34.1	414	NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling.
	415
	416	The 5V output time can be controlled by AT Command.
	417
51.5	418	(% style="color:blue" %)AT+5VT=1000
34.1	419
	420	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	421
	422
51.5	423
44.1	424	== 2.5 Downlink Payload ==
34.1	425
51.5	426
41.1	427	By default, NSPH01 prints the downlink payload to console port.
34.1	428
37.1	429	[[image:image-20220907154636-17.png]]
34.1	430
	431
51.5	432	(% style="color:blue" %)Examples:
34.1	433
51.5	434	* (% style="color:#037691" %) Set TDC
34.1	435
	436	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	437
	438	Payload: 01 00 00 1E TDC=30S
	439
	440	Payload: 01 00 00 3C TDC=60S
	441
51.5	442	* (% style="color:#037691" %) Reset
34.1	443
42.1	444	If payload = 0x04FF, it will reset the NSPH01
34.1	445
51.5	446	* (% style="color:#037691" %) INTMOD
34.1	447
	448	Downlink Payload: 06000003, Set AT+INTMOD=3
	449
51.5	450
	451
44.1	452	== 2.6 LED Indicator ==
34.1	453
51.5	454
34.1	455	The NSPH01 has an internal LED which is to show the status of different state.
	456
	457	* 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)
	458	* Then the LED will be on for 1 second means device is boot normally.
	459	* After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
	460	* For each uplink probe, LED will be on for 500ms.
	461
	462
51.5	463	== 2.7 Installation and Maintain ==
	464
	465
	466	=== 2.7.1 Before measurement ===
	467
	468
34.1	469	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.
	470
	471
51.5	472
	473	=== 2.7.2 Measurement ===
	474
	475
51.7	476	(% style="color:#037691" %)Measurement the soil surface:
34.1	477
51.5	478
34.1	479	[[image:image-20220907154700-18.png]]
	480
	481	Choose the proper measuring position. Split the surface soil according to the measured deep.
	482
	483	Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
	484
	485	Slowly insert the probe to the measure point. Don't use large force which will break the probe. Make sure not shake when inserting.
	486
	487	Put soil over the probe after insert. And start to measure.
	488
51.5	489
51.7	490	(% style="color:#037691" %)Measurement inside soil:
34.1	491
	492	Dig a hole with diameter > 20CM.
	493
	494	Insert the probe inside, method like measure the surface.
	495
	496
51.5	497
	498	=== 2.7.3 Maintain Probe ===
	499
	500
34.1	501	1. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
	502	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.
	503	1. Probe reference electrode is also no strong, need to avoid strong force or hitting.
	504	1. User should keep reference electrode wet while not use.
	505	1. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
	506	1. The probe is IP68 can be put in water.
	507
51.5	508	== 2.8 PH and Temperature alarm function ==
	509
	510
51.7	511	(% style="color:#037691" %)➢ AT Command:
51.5	512
51.7	513	(% style="color:blue" %)AT+ PHALARM=min,max
51.5	514
34.1	515	² When min=3, and max≠0, Alarm higher than max
	516
	517	² When min≠0, and max=0, Alarm lower than min
	518
	519	² When min≠0 and max≠0, Alarm higher than max or lower than min
	520
	521
51.7	522	(% style="color:blue" %)Example:
34.1	523
51.5	524	AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
	525
34.1	526	AT+ TEMPALARM=min,max
	527
	528	² When min=0, and max≠0, Alarm higher than max
	529
	530	² When min≠0, and max=0, Alarm lower than min
	531
	532	² When min≠0 and max≠0, Alarm higher than max or lower than min
	533
	534
51.7	535	(% style="color:blue" %)Example:
34.1	536
51.5	537	AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
34.1	538
51.5	539
	540
51.7	541	== 2.9 Set the number of data to be uploaded and the recording time ==
34.1	542
	543
51.7	544	(% style="color:#037691" %)➢ AT Command:
34.1	545
51.7	546	* (% 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)
	547	* (% 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	548
47.1	549
51.5	550
51.7	551	== 2.10 Read or Clear cached data ==
34.1	552
	553
51.7	554	(% style="color:#037691" %)➢ AT Command:
51.5	555
51.7	556	* (% style="color:blue" %)AT+CDP (%%) ~/~/ Read cached data
51.9	557	* (% style="color:blue" %)AT+CDP=0 (%%) ~/~/ Clear cached data
51.5	558
	559
34.1	560	[[image:image-20220907154700-19.png]]
	561
	562
	563
51.5	564	== 2.11 Calibration ==
34.1	565
	566
	567	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).
	568
	569	After stable, user can use below command to calibrate.
	570
51.5	571
34.1	572	[[image:image-20220907154700-20.png]]
	573
51.5	574
	575
44.1	576	== 2.12 Firmware Change Log ==
34.1	577
51.5	578
34.1	579	Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0>>url:https://www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0]]
	580
51.7	581	Upgrade Instruction: [[Upgrade Firmware>>\|\|anchor="H5.1200BHowtoUpgradeFirmware"]]
34.1	582
51.5	583
	584
44.1	585	== 2.13 Battery Analysis ==
34.1	586
51.5	587
44.1	588	=== 2.13.1 Battery Type ===
34.1	589
51.5	590
34.1	591	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.
	592
	593	The battery is designed to last for several years depends on the actually use environment and update interval.
	594
47.1	595	The battery-related documents as below:
34.1	596
	597	* [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	598	* [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	599	* [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	600
	601	[[image:image-20220907154700-21.png]]
	602
51.5	603
	604
44.1	605	=== 2.13.2 Power consumption Analyze ===
34.1	606
51.5	607
34.1	608	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.
	609
	610	Instruction to use as below:
	611
51.7	612	(% 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	613
51.8	614	(% style="color:blue" %)Step 2: (%%) Open it and choose
34.1	615
	616	* Product Model
	617	* Uplink Interval
	618	* Working Mode
	619
	620	And the Life expectation in difference case will be shown on the right.
	621
51.6	622
34.1	623	[[image:image-20220907154700-22.jpeg]]
	624
	625
	626
51.5	627
44.1	628	=== 2.13.3 Battery Note ===
34.1	629
51.5	630
34.1	631	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.
	632
51.5	633
	634
44.1	635	=== 2.13.4 Replace the battery ===
34.1	636
51.5	637
34.1	638	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).
	639
51.5	640
	641
44.1	642	= 3. Access NB-IoT Module =
34.1	643
51.5	644
34.1	645	Users can directly access the AT command set of the NB-IoT module.
	646
	647	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/]]
	648
51.5	649
34.1	650	[[image:image-20220907154700-23.png]]
	651
	652
	653
51.5	654
44.1	655	= 4. Using the AT Commands =
34.1	656
51.5	657
44.1	658	== 4.1 Access AT Commands ==
34.1	659
51.5	660
34.1	661	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]]
	662
	663	AT+<CMD>? : Help on <CMD>
	664
	665	AT+<CMD> : Run <CMD>
	666
	667	AT+<CMD>=<value> : Set the value
	668
	669	AT+<CMD>=? : Get the value
	670
51.5	671
51.7	672	(% style="color:#037691" %)General Commands
34.1	673
	674	AT : Attention
	675
	676	AT? : Short Help
	677
	678	ATZ : MCU Reset
	679
	680	AT+TDC : Application Data Transmission Interval
	681
	682	AT+CFG : Print all configurations
	683
	684	AT+CFGMOD : Working mode selection
	685
	686	AT+INTMOD : Set the trigger interrupt mode
	687
	688	AT+5VT : Set extend the time of 5V power
	689
	690	AT+PRO : Choose agreement
	691
	692	AT+RXDL : Extend the sending and receiving time
	693
	694	AT+SERVADDR : Server Address
	695
	696	AT+TR : Get or Set record time"
	697
50.1	698	AT+APN : Get or set the APN
34.1	699
50.1	700	AT+FBAND : Get or Set whether to automatically modify the frequency band
	701
	702	AT+DNSCFG : Get or Set DNS Server
	703
	704	AT+GETSENSORVALUE : Returns the current sensor measurement
	705
34.1	706	AT+NOUD : Get or Set the number of data to be uploaded
	707
	708	AT+CDP : Read or Clear cached data
	709
	710	AT+TEMPALARM : Get or Set alarm of temp
	711
	712	AT+PHALARM : Get or Set alarm of PH
	713
	714	AT+ PHCAL : calibrate PH value
	715
	716
51.7	717	(% style="color:#037691" %)COAP Management
34.1	718
	719	AT+URI : Resource parameters
	720
51.5	721
51.7	722	(% style="color:#037691" %)UDP Management
34.1	723
	724	AT+CFM : Upload confirmation mode (only valid for UDP)
	725
51.5	726
51.7	727	(% style="color:#037691" %)MQTT Management
34.1	728
	729	AT+CLIENT : Get or Set MQTT client
	730
	731	AT+UNAME : Get or Set MQTT Username
	732
	733	AT+PWD : Get or Set MQTT password
	734
	735	AT+PUBTOPIC : Get or Set MQTT publish topic
	736
	737	AT+SUBTOPIC : Get or Set MQTT subscription topic
	738
51.5	739
51.7	740	(% style="color:#037691" %)Information
34.1	741
	742	AT+FDR : Factory Data Reset
	743
	744	AT+PWORD : Serial Access Password
	745
51.5	746
	747
44.1	748	= 5. FAQ =
34.1	749
51.5	750
44.1	751	== 5.1 How to Upgrade Firmware ==
34.1	752
51.5	753
34.1	754	User can upgrade the firmware for 1) bug fix, 2) new feature release.
	755
	756	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]]
	757
51.8	758	(% style="color:red" %)Notice, NSPH01 and LSPH01 share the same mother board. They use the same connection and method to update.
34.1	759
51.5	760
	761
44.1	762	== 5.2 Can I calibrate NSPH01 to different soil types? ==
34.1	763
51.5	764
34.1	765	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]].
	766
51.5	767
	768
44.1	769	= 6. Trouble Shooting =
34.1	770
51.5	771
44.1	772	== 6.1 Connection problem when uploading firmware ==
34.1	773
51.5	774
34.1	775	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]]
	776
51.5	777
	778
44.1	779	== 6.2 AT Command input doesn't work ==
34.1	780
	781
51.7	782	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	783
	784
	785
44.1	786	= 7. Order Info =
34.1	787
51.5	788
34.1	789	Part Number: NSPH01
	790
51.5	791
	792
44.1	793	= 8. Packing Info =
34.1	794
51.5	795
34.1	796	Package Includes:
	797
47.1	798	* NSPH01 NB-IoT pH Sensor x 1
34.1	799	* External antenna x 1
	800
	801	Dimension and weight:
	802
	803	* Size: 195 x 125 x 55 mm
	804	* Weight: 420g
	805
44.1	806	= 9. Support =
34.1	807
51.5	808
34.1	809	* 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.
	810	* 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]]
	811
	812

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

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