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

Version 51.11 by Xiaoling on 2022/09/12 17:49

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
44.1	53	== 1.3 Specification ==
34.1	54
	55
50.3	56	(% style="color:#037691" %)Common DC Characteristics:
	57
34.1	58	* Supply Voltage: 2.1v ~~ 3.6v
	59	* Operating Temperature: -40 ~~ 85°C
	60
51.11	61
	62
50.3	63	(% style="color:#037691" %)NB-IoT Spec:
	64
34.1	65	* - B1 @H-FDD: 2100MHz
	66	* - B3 @H-FDD: 1800MHz
	67	* - B8 @H-FDD: 900MHz
	68	* - B5 @H-FDD: 850MHz
	69	* - B20 @H-FDD: 800MHz
	70	* - B28 @H-FDD: 700MHz
	71
51.10	72
	73
	74
50.3	75	== 1.4 Probe Specification ==
	76
	77
	78	(% style="color:#037691" %)Soil pH:
	79
34.1	80	* Range: 3 ~~ 10 pH
	81	* Resolution: 0.01 pH
	82	* Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
	83	* Temperature Compensation Range: 0 ~~ 50℃
	84	* IP68 Protection
	85	* Length: 3.5 meters
	86
51.10	87
	88
50.3	89	(% style="color:#037691" %)Soil Temperature:
	90
34.1	91	* Range -40℃～85℃
	92	* Resolution: 0.1℃
	93	* Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
	94	* IP68 Protection
	95	* Length: 3.5 meters
	96
	97
51.10	98
	99
	100	== 1.5 Applications ==
	101
	102
34.1	103	* Smart Agriculture
	104
	105
50.3	106
51.10	107
	108	== 1.6 Pin mapping and power on ==
	109
	110
34.1	111	[[image:image-20220907153300-2.png]]
	112
	113
50.3	114
44.1	115	= 2. Use NSPH01 to communicate with IoT Server =
34.1	116
50.3	117
44.1	118	== 2.1 How it works ==
34.1	119
50.3	120
34.1	121	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.
	122
	123	The diagram below shows the working flow in default firmware of NSPH01:
	124
50.3	125
34.1	126	[[image:image-20220907153416-3.png]]
	127
50.3	128
	129
44.1	130	== 2.2 Configure the NSPH01 ==
34.1	131
50.3	132
44.1	133	=== 2.2.1 Test Requirement ===
34.1	134
50.3	135
46.1	136	To use NSPH01 in the field, make sure meet below requirements:
34.1	137
	138	* Your local operator has already distributed a NB-IoT Network there.
	139	* The local NB-IoT network used the band that NSPH01 supports.
	140	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
	141
51.11	142	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	143
50.3	144
34.1	145	[[image:image-20220907153445-4.png]]
	146
	147
50.3	148
44.1	149	=== 2.2.2 Insert SIM card ===
34.1	150
50.3	151
47.1	152	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	153
51.11	154
34.1	155	[[image:image-20220907153505-5.png]]
	156
50.3	157
	158
44.1	159	=== 2.2.3 Connect USB – TTL to NSPH01 to configure it ===
34.1	160
	161
51.2	162	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	163
	164
51.2	165	(% style="color:blue" %)Connection:
34.1	166
51.2	167	~ (% style="background-color:yellow" %) USB TTL GND <~-~-~-~-> GND(%%)
34.1	168
51.2	169	~ (% style="background-color:yellow" %) USB TTL TXD <~-~-~-~-> UART_RXD(%%)
	170
	171	~ (% style="background-color:yellow" %) USB TTL RXD <~-~-~-~-> UART_TXD(%%)
	172
	173
34.1	174	In the PC, use below serial tool settings:
	175
51.2	176	* Baud: (% style="color:green" %)9600
	177	* Data bits: (% style="color:green" %)8(%%)
	178	* Stop bits: (% style="color:green" %)1
	179	* Parity: (% style="color:green" %)None
	180	* Flow Control: (% style="color:green" %)None
	181	*
34.1	182
51.2	183	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	184
	185
51.2	186	[[image:image-20220912144017-1.png]]
34.1	187
51.2	188
	189	(% 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]]
	190
	191
	192
44.1	193	=== 2.2.4 Use CoAP protocol to uplink data ===
34.1	194
	195
51.2	196	(% 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	197
	198
51.2	199	(% style="color:blue" %)Use below commands:
	200
	201	* (% style="color:#037691" %)AT+PRO=1 (%%) ~/~/ Set to use CoAP protocol to uplink
	202	* (% style="color:#037691" %)AT+SERVADDR=120.24.4.116,5683 (%%) ~/~/ to set CoAP server address and port
	203	* (% style="color:#037691" %)AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" (%%) ~/~/ Set COAP resource path
	204
34.1	205	For parameter description, please refer to AT command set
	206
51.2	207
34.1	208	[[image:image-20220907153551-7.png\|\|height="502" width="740"]]
	209
	210
51.2	211	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.
	212
	213
34.1	214	[[image:image-20220907153612-8.png\|\|height="529" width="729"]]
	215
	216
51.2	217
44.1	218	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
34.1	219
51.2	220
34.1	221	This feature is supported since firmware version v1.0.1
	222
51.4	223	* (% style="color:blue" %)AT+PRO=2 (%%) ~/~/ Set to use UDP protocol to uplink
	224	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5601 (%%) ~/~/ to set UDP server address and port
	225	* (% style="color:blue" %)AT+CFM=1 (%%) ~/~/ If the server does not respond, this command is unnecessar
	226
34.1	227	[[image:image-20220907153643-9.png\|\|height="401" width="734"]]
	228
51.2	229
34.1	230	[[image:image-20220907153703-10.png\|\|height="309" width="738"]]
	231
	232
51.4	233
44.1	234	=== 2.2.6 Use MQTT protocol to uplink data ===
34.1	235
51.4	236
34.1	237	This feature is supported since firmware version v110
	238
51.4	239	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/ Set to use MQTT protocol to uplink
	240	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/ Set MQTT server address and port
	241	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%) ~/~/ Set up the CLIENT of MQTT
	242	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/ Set the username of MQTT
	243	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/ Set the password of MQTT
	244	* (% style="color:blue" %)AT+PUBTOPIC=NSE01_PUB (%%)~/~/ Set the sending topic of MQTT
	245	* (% style="color:blue" %)AT+SUBTOPIC=NSE01_SUB (%%) ~/~/ Set the subscription topic of MQTT
34.1	246
	247	[[image:image-20220907153739-11.png\|\|height="491" width="764"]]
	248
51.3	249
34.1	250	[[image:image-20220907153751-12.png\|\|height="555" width="769"]]
	251
51.4	252
34.1	253	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.
	254
51.3	255
	256
	257
44.1	258	=== 2.2.7 Use TCP protocol to uplink data ===
34.1	259
51.4	260
34.1	261	This feature is supported since firmware version v110
	262
51.4	263	* (% style="color:blue" %)AT+PRO=4 (%%) ~/~/ Set to use TCP protocol to uplink
	264	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5600 (%%) ~/~/ to set TCP server address and port
34.1	265
	266	[[image:image-20220907153818-13.png\|\|height="486" width="668"]]
	267
51.3	268
34.1	269	[[image:image-20220907153827-14.png\|\|height="236" width="684"]]
	270
51.3	271
	272
44.1	273	=== 2.2.8 Change Update Interval ===
34.1	274
51.5	275
47.1	276	Users can use the below command to change the uplink interval.
34.1	277
51.4	278	* (% style="color:blue" %)AT+TDC=7200 (%%) ~/~/ Set Update Interval to 7200s (2 hour)
34.1	279
51.4	280	(% 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	281
47.1	282
51.5	283
44.1	284	== 2.3 Uplink Payload ==
34.1	285
51.5	286
34.1	287	In this mode, uplink payload includes 87 bytes in total by default.
	288
	289	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.
	290
51.5	291	(% border="2" style="background-color:#ffffcc; color:green; width:1160px" %)
	292	\|(% 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
	293	\|(% 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	294
34.1	295	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
	296
	297	[[image:image-20220907153902-15.png\|\|height="581" width="804"]]
	298
	299
	300	The payload is ASCII string, representative same HEX:
	301
49.1	302	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	303
49.1	304	* (% style="color:red" %)Device ID: 0xf868411056754138 = f868411056754138
	305	* (% style="color:blue" %)Version: 0x0064=100=1.0.0
	306	* (% style="color:green" %)BAT: 0x0c78 = 3192 mV = 3.192V
	307	* (% style="color:red" %)Singal: 0x17 = 23
	308	* (% style="color:blue" %)Mod: 0x01 = 1
	309	* (% style="color:green" %)Interrupt: 0x00= 0
34.1	310	* Soil PH: 0x0225= 549 = 5.49
51.5	311	* Soil Temperature: 0x010B =267=26.7 °C
48.1	312	* Time stamp : 0x6315537b =1662342011 ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
39.1	313	* Soil Temperature,Soil PH,Time stamp : 010b0226631550fb
49.1	314	* (% style="color:red" %)8 sets of recorded data: Temperature,Soil PH,Time stamp : 010e022663154d77,.......
34.1	315
51.10	316
	317
44.1	318	== 2.4 Payload Explanation and Sensor Interface ==
34.1	319
51.5	320
44.1	321	=== 2.4.1 Device ID ===
34.1	322
51.5	323
34.1	324	By default, the Device ID equal to the last 15 bits of IMEI.
	325
51.4	326	User can use (% style="color:blue" %)AT+DEUI (%%)to set Device ID
34.1	327
51.5	328
34.1	329	Example:
	330
	331	AT+DEUI=868411056754138
	332
	333	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
	334
51.5	335
	336
44.1	337	=== 2.4.2 Version Info ===
34.1	338
51.5	339
34.1	340	Specify the software version: 0x64=100, means firmware version 1.00.
	341
	342	For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
	343
51.5	344
	345
44.1	346	=== 2.4.3 Battery Info ===
34.1	347
51.5	348
34.1	349	Check the battery voltage for NSPH01.
	350
	351	Ex1: 0x0B45 = 2885mV
	352
	353	Ex2: 0x0B49 = 2889mV
	354
51.5	355
	356
44.1	357	=== 2.4.4 Signal Strength ===
34.1	358
51.5	359
34.1	360	NB-IoT Network signal Strength.
	361
	362	Ex1: 0x1d = 29
	363
	364	0 -113dBm or less
	365
	366	1 -111dBm
	367
	368	2...30 -109dBm... -53dBm
	369
	370	31 -51dBm or greater
	371
	372	99 Not known or not detectable
	373
51.5	374
	375
44.1	376	=== 2.4.5 Soil PH ===
34.1	377
51.5	378
34.1	379	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.
	380
51.9	381	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	382
51.9	383	(% style="color:blue" %)0229(H) = 549(D) /100 = 5.49.
34.1	384
51.5	385
	386
44.1	387	=== 2.4.6 Soil Temperature ===
34.1	388
51.5	389
51.9	390	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	391
51.9	392
34.1	393	Example:
	394
40.1	395	If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
34.1	396
40.1	397	If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
34.1	398
51.5	399
	400
44.1	401	=== 2.4.7 Timestamp ===
34.1	402
51.5	403
34.1	404	Time stamp : 0x6315537b =1662342011
	405
	406	Convert Unix timestamp to time 2022-9-5 9:40:11.
	407
51.5	408
	409
44.1	410	=== 2.4.8 Digital Interrupt ===
34.1	411
	412
51.5	413	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.
	414
34.1	415	The command is:
	416
51.5	417	(% 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	418
	419	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.
	420
	421
51.9	422	Example:
	423
34.1	424	0x(00): Normal uplink packet.
	425
	426	0x(01): Interrupt Uplink Packet.
	427
51.5	428
	429
44.1	430	=== 2.4.9 +5V Output ===
34.1	431
51.5	432
34.1	433	NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling.
	434
	435	The 5V output time can be controlled by AT Command.
	436
51.5	437	(% style="color:blue" %)AT+5VT=1000
34.1	438
	439	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	440
	441
51.5	442
44.1	443	== 2.5 Downlink Payload ==
34.1	444
51.5	445
41.1	446	By default, NSPH01 prints the downlink payload to console port.
34.1	447
37.1	448	[[image:image-20220907154636-17.png]]
34.1	449
	450
51.5	451	(% style="color:blue" %)Examples:
34.1	452
51.5	453	* (% style="color:#037691" %) Set TDC
34.1	454
	455	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	456
	457	Payload: 01 00 00 1E TDC=30S
	458
	459	Payload: 01 00 00 3C TDC=60S
	460
51.5	461	* (% style="color:#037691" %) Reset
34.1	462
42.1	463	If payload = 0x04FF, it will reset the NSPH01
34.1	464
51.5	465	* (% style="color:#037691" %) INTMOD
34.1	466
	467	Downlink Payload: 06000003, Set AT+INTMOD=3
	468
51.5	469
	470
44.1	471	== 2.6 LED Indicator ==
34.1	472
51.5	473
34.1	474	The NSPH01 has an internal LED which is to show the status of different state.
	475
	476	* 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)
	477	* Then the LED will be on for 1 second means device is boot normally.
	478	* After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
	479	* For each uplink probe, LED will be on for 500ms.
	480
	481
51.10	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
51.5	530	== 2.8 PH and Temperature alarm function ==
	531
	532
51.7	533	(% style="color:#037691" %)➢ AT Command:
51.5	534
51.7	535	(% style="color:blue" %)AT+ PHALARM=min,max
51.5	536
34.1	537	² When min=3, and max≠0, Alarm higher than max
	538
	539	² When min≠0, and max=0, Alarm lower than min
	540
	541	² When min≠0 and max≠0, Alarm higher than max or lower than min
	542
	543
51.7	544	(% style="color:blue" %)Example:
34.1	545
51.5	546	AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
	547
34.1	548	AT+ TEMPALARM=min,max
	549
	550	² When min=0, and max≠0, Alarm higher than max
	551
	552	² When min≠0, and max=0, Alarm lower than min
	553
	554	² When min≠0 and max≠0, Alarm higher than max or lower than min
	555
	556
51.7	557	(% style="color:blue" %)Example:
34.1	558
51.5	559	AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
34.1	560
51.5	561
	562
51.7	563	== 2.9 Set the number of data to be uploaded and the recording time ==
34.1	564
	565
51.7	566	(% style="color:#037691" %)➢ AT Command:
34.1	567
51.7	568	* (% 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)
	569	* (% 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	570
47.1	571
51.5	572
51.7	573	== 2.10 Read or Clear cached data ==
34.1	574
	575
51.7	576	(% style="color:#037691" %)➢ AT Command:
51.5	577
51.7	578	* (% style="color:blue" %)AT+CDP (%%) ~/~/ Read cached data
51.9	579	* (% style="color:blue" %)AT+CDP=0 (%%) ~/~/ Clear cached data
51.5	580
	581
51.11	582
34.1	583	[[image:image-20220907154700-19.png]]
	584
	585
	586
51.5	587	== 2.11 Calibration ==
34.1	588
	589
	590	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).
	591
	592	After stable, user can use below command to calibrate.
	593
51.5	594
34.1	595	[[image:image-20220907154700-20.png]]
	596
51.5	597
	598
44.1	599	== 2.12 Firmware Change Log ==
34.1	600
51.5	601
51.11	602	Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1tv07fro2pvjqj8/AAD-2wbfGfluTZfh38fQqdA_a?dl=0>>https://www.dropbox.com/sh/1tv07fro2pvjqj8/AAD-2wbfGfluTZfh38fQqdA_a?dl=0]]
34.1	603
51.7	604	Upgrade Instruction: [[Upgrade Firmware>>\|\|anchor="H5.1200BHowtoUpgradeFirmware"]]
34.1	605
51.5	606
	607
44.1	608	== 2.13 Battery Analysis ==
34.1	609
51.5	610
44.1	611	=== 2.13.1 Battery Type ===
34.1	612
51.5	613
34.1	614	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.
	615
	616	The battery is designed to last for several years depends on the actually use environment and update interval.
	617
47.1	618	The battery-related documents as below:
34.1	619
	620	* [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	621	* [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	622	* [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	623
	624	[[image:image-20220907154700-21.png]]
	625
51.5	626
	627
44.1	628	=== 2.13.2 Power consumption Analyze ===
34.1	629
51.5	630
34.1	631	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.
	632
	633	Instruction to use as below:
	634
51.7	635	(% 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	636
51.8	637	(% style="color:blue" %)Step 2: (%%) Open it and choose
34.1	638
	639	* Product Model
	640	* Uplink Interval
	641	* Working Mode
	642
	643	And the Life expectation in difference case will be shown on the right.
	644
51.6	645
34.1	646	[[image:image-20220907154700-22.jpeg]]
	647
	648
	649
51.5	650
44.1	651	=== 2.13.3 Battery Note ===
34.1	652
51.5	653
34.1	654	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.
	655
51.5	656
	657
44.1	658	=== 2.13.4 Replace the battery ===
34.1	659
51.5	660
34.1	661	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).
	662
51.5	663
	664
44.1	665	= 3. Access NB-IoT Module =
34.1	666
51.5	667
34.1	668	Users can directly access the AT command set of the NB-IoT module.
	669
	670	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/]]
	671
51.5	672
34.1	673	[[image:image-20220907154700-23.png]]
	674
	675
	676
51.5	677
44.1	678	= 4. Using the AT Commands =
34.1	679
51.5	680
44.1	681	== 4.1 Access AT Commands ==
34.1	682
51.5	683
34.1	684	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]]
	685
	686	AT+<CMD>? : Help on <CMD>
	687
	688	AT+<CMD> : Run <CMD>
	689
	690	AT+<CMD>=<value> : Set the value
	691
	692	AT+<CMD>=? : Get the value
	693
51.5	694
51.7	695	(% style="color:#037691" %)General Commands
34.1	696
	697	AT : Attention
	698
	699	AT? : Short Help
	700
	701	ATZ : MCU Reset
	702
	703	AT+TDC : Application Data Transmission Interval
	704
	705	AT+CFG : Print all configurations
	706
	707	AT+CFGMOD : Working mode selection
	708
	709	AT+INTMOD : Set the trigger interrupt mode
	710
	711	AT+5VT : Set extend the time of 5V power
	712
	713	AT+PRO : Choose agreement
	714
	715	AT+RXDL : Extend the sending and receiving time
	716
	717	AT+SERVADDR : Server Address
	718
	719	AT+TR : Get or Set record time"
	720
50.1	721	AT+APN : Get or set the APN
34.1	722
50.1	723	AT+FBAND : Get or Set whether to automatically modify the frequency band
	724
	725	AT+DNSCFG : Get or Set DNS Server
	726
	727	AT+GETSENSORVALUE : Returns the current sensor measurement
	728
34.1	729	AT+NOUD : Get or Set the number of data to be uploaded
	730
	731	AT+CDP : Read or Clear cached data
	732
	733	AT+TEMPALARM : Get or Set alarm of temp
	734
	735	AT+PHALARM : Get or Set alarm of PH
	736
	737	AT+ PHCAL : calibrate PH value
	738
	739
51.7	740	(% style="color:#037691" %)COAP Management
34.1	741
	742	AT+URI : Resource parameters
	743
51.5	744
51.7	745	(% style="color:#037691" %)UDP Management
34.1	746
	747	AT+CFM : Upload confirmation mode (only valid for UDP)
	748
51.5	749
51.7	750	(% style="color:#037691" %)MQTT Management
34.1	751
	752	AT+CLIENT : Get or Set MQTT client
	753
	754	AT+UNAME : Get or Set MQTT Username
	755
	756	AT+PWD : Get or Set MQTT password
	757
	758	AT+PUBTOPIC : Get or Set MQTT publish topic
	759
	760	AT+SUBTOPIC : Get or Set MQTT subscription topic
	761
51.5	762
51.7	763	(% style="color:#037691" %)Information
34.1	764
	765	AT+FDR : Factory Data Reset
	766
	767	AT+PWORD : Serial Access Password
	768
51.5	769
	770
44.1	771	= 5. FAQ =
34.1	772
51.5	773
44.1	774	== 5.1 How to Upgrade Firmware ==
34.1	775
51.5	776
34.1	777	User can upgrade the firmware for 1) bug fix, 2) new feature release.
	778
	779	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]]
	780
51.8	781	(% style="color:red" %)Notice, NSPH01 and LSPH01 share the same mother board. They use the same connection and method to update.
34.1	782
51.5	783
	784
44.1	785	== 5.2 Can I calibrate NSPH01 to different soil types? ==
34.1	786
51.5	787
34.1	788	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]].
	789
51.5	790
	791
44.1	792	= 6. Trouble Shooting =
34.1	793
51.5	794
44.1	795	== 6.1 Connection problem when uploading firmware ==
34.1	796
51.5	797
34.1	798	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]]
	799
51.5	800
	801
44.1	802	== 6.2 AT Command input doesn't work ==
34.1	803
	804
51.7	805	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	806
	807
	808
44.1	809	= 7. Order Info =
34.1	810
51.5	811
34.1	812	Part Number: NSPH01
	813
51.5	814
	815
44.1	816	= 8. Packing Info =
34.1	817
51.5	818
34.1	819	Package Includes:
	820
47.1	821	* NSPH01 NB-IoT pH Sensor x 1
34.1	822	* External antenna x 1
	823
	824	Dimension and weight:
	825
51.10	826	* Device Size: cm
	827	* Device Weight: g
	828	* Package Size / pcs : cm
	829	* Weight / pcs : g
34.1	830
51.10	831
	832
44.1	833	= 9. Support =
34.1	834
51.5	835
34.1	836	* 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.
	837	* 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]]
	838
	839

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

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