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

Version 51.8 by Xiaoling on 2022/09/12 15:36

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
51.5	299
	300
44.1	301	== 2.4 Payload Explanation and Sensor Interface ==
34.1	302
51.5	303
44.1	304	=== 2.4.1 Device ID ===
34.1	305
51.5	306
34.1	307	By default, the Device ID equal to the last 15 bits of IMEI.
	308
51.4	309	User can use (% style="color:blue" %)AT+DEUI (%%)to set Device ID
34.1	310
51.5	311
34.1	312	Example:
	313
	314	AT+DEUI=868411056754138
	315
	316	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
	317
51.5	318
	319
44.1	320	=== 2.4.2 Version Info ===
34.1	321
51.5	322
34.1	323	Specify the software version: 0x64=100, means firmware version 1.00.
	324
	325	For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
	326
51.5	327
	328
44.1	329	=== 2.4.3 Battery Info ===
34.1	330
51.5	331
34.1	332	Check the battery voltage for NSPH01.
	333
	334	Ex1: 0x0B45 = 2885mV
	335
	336	Ex2: 0x0B49 = 2889mV
	337
51.5	338
	339
44.1	340	=== 2.4.4 Signal Strength ===
34.1	341
51.5	342
34.1	343	NB-IoT Network signal Strength.
	344
	345	Ex1: 0x1d = 29
	346
	347	0 -113dBm or less
	348
	349	1 -111dBm
	350
	351	2...30 -109dBm... -53dBm
	352
	353	31 -51dBm or greater
	354
	355	99 Not known or not detectable
	356
51.5	357
	358
44.1	359	=== 2.4.5 Soil PH ===
34.1	360
51.5	361
34.1	362	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.
	363
	364	For example, if the data you get from the register is __0x05 0xDC__, the PH content in the soil is
	365
	366	0229(H) = 549(D) /100 = 5.49.
	367
51.5	368
	369
44.1	370	=== 2.4.6 Soil Temperature ===
34.1	371
51.5	372
34.1	373	Get the temperature in the soil. The value range of the register is -4000 - +800(Decimal), divide this value by 100 to get the temperature in the soil. For example, if the data you get from the register is __0x09 0xEC__, the temperature content in the soil is
	374
	375	Example:
	376
40.1	377	If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
34.1	378
40.1	379	If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
34.1	380
51.5	381
	382
44.1	383	=== 2.4.7 Timestamp ===
34.1	384
51.5	385
34.1	386	Time stamp : 0x6315537b =1662342011
	387
	388	Convert Unix timestamp to time 2022-9-5 9:40:11.
	389
51.5	390
	391
44.1	392	=== 2.4.8 Digital Interrupt ===
34.1	393
	394
51.5	395	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.
	396
34.1	397	The command is:
	398
51.5	399	(% 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	400
	401	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.
	402
	403	Example:
	404
	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
	463
51.5	464
	465	== 2.7 Installation and Maintain ==
	466
	467
	468	=== 2.7.1 Before measurement ===
	469
	470
34.1	471	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.
	472
	473
51.5	474
	475	=== 2.7.2 Measurement ===
	476
	477
51.7	478	(% style="color:#037691" %)Measurement the soil surface:
34.1	479
51.5	480
34.1	481	[[image:image-20220907154700-18.png]]
	482
	483	Choose the proper measuring position. Split the surface soil according to the measured deep.
	484
	485	Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
	486
	487	Slowly insert the probe to the measure point. Don't use large force which will break the probe. Make sure not shake when inserting.
	488
	489	Put soil over the probe after insert. And start to measure.
	490
51.5	491
51.7	492	(% style="color:#037691" %)Measurement inside soil:
34.1	493
	494	Dig a hole with diameter > 20CM.
	495
	496	Insert the probe inside, method like measure the surface.
	497
	498
51.5	499
	500	=== 2.7.3 Maintain Probe ===
	501
	502
34.1	503	1. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
	504	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.
	505	1. Probe reference electrode is also no strong, need to avoid strong force or hitting.
	506	1. User should keep reference electrode wet while not use.
	507	1. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
	508	1. The probe is IP68 can be put in water.
	509
	510
	511
51.5	512	== 2.8 PH and Temperature alarm function ==
	513
	514
51.7	515	(% style="color:#037691" %)➢ AT Command:
51.5	516
51.7	517	(% style="color:blue" %)AT+ PHALARM=min,max
51.5	518
34.1	519	² When min=3, and max≠0, Alarm higher than max
	520
	521	² When min≠0, and max=0, Alarm lower than min
	522
	523	² When min≠0 and max≠0, Alarm higher than max or lower than min
	524
	525
51.7	526	(% style="color:blue" %)Example:
34.1	527
51.5	528	AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
	529
34.1	530	AT+ TEMPALARM=min,max
	531
	532	² When min=0, and max≠0, Alarm higher than max
	533
	534	² When min≠0, and max=0, Alarm lower than min
	535
	536	² When min≠0 and max≠0, Alarm higher than max or lower than min
	537
	538
51.7	539	(% style="color:blue" %)Example:
34.1	540
51.5	541	AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
34.1	542
51.5	543
	544
51.7	545	== 2.9 Set the number of data to be uploaded and the recording time ==
34.1	546
	547
51.7	548	(% style="color:#037691" %)➢ AT Command:
34.1	549
51.7	550	* (% 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)
	551	* (% 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	552
47.1	553
51.5	554
34.1	555
51.7	556	== 2.10 Read or Clear cached data ==
34.1	557
	558
51.7	559	(% style="color:#037691" %)➢ AT Command:
51.5	560
51.7	561	* (% style="color:blue" %)AT+CDP (%%) ~/~/ Read cached data
	562	* (% style="color:blue" %)AT+CDP=0 (%%) ~/~/ Clear cached data
51.5	563
	564
51.7	565
	566
34.1	567	[[image:image-20220907154700-19.png]]
	568
	569
	570
51.5	571	== 2.11 Calibration ==
34.1	572
	573
	574	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).
	575
	576	After stable, user can use below command to calibrate.
	577
51.5	578
34.1	579	[[image:image-20220907154700-20.png]]
	580
51.5	581
	582
44.1	583	== 2.12 Firmware Change Log ==
34.1	584
51.5	585
34.1	586	Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0>>url:https://www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0]]
	587
51.7	588	Upgrade Instruction: [[Upgrade Firmware>>\|\|anchor="H5.1200BHowtoUpgradeFirmware"]]
34.1	589
51.5	590
	591
44.1	592	== 2.13 Battery Analysis ==
34.1	593
51.5	594
44.1	595	=== 2.13.1 Battery Type ===
34.1	596
51.5	597
34.1	598	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.
	599
	600	The battery is designed to last for several years depends on the actually use environment and update interval.
	601
47.1	602	The battery-related documents as below:
34.1	603
	604	* [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	605	* [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	606	* [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	607
	608	[[image:image-20220907154700-21.png]]
	609
51.5	610
	611
44.1	612	=== 2.13.2 Power consumption Analyze ===
34.1	613
51.5	614
34.1	615	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.
	616
	617	Instruction to use as below:
	618
51.7	619	(% 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	620
51.8	621	(% style="color:blue" %)Step 2: (%%) Open it and choose
34.1	622
	623	* Product Model
	624	* Uplink Interval
	625	* Working Mode
	626
	627	And the Life expectation in difference case will be shown on the right.
	628
51.6	629
34.1	630	[[image:image-20220907154700-22.jpeg]]
	631
	632
	633
51.5	634
44.1	635	=== 2.13.3 Battery Note ===
34.1	636
51.5	637
34.1	638	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.
	639
51.5	640
	641
44.1	642	=== 2.13.4 Replace the battery ===
34.1	643
51.5	644
34.1	645	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).
	646
51.5	647
	648
44.1	649	= 3. Access NB-IoT Module =
34.1	650
51.5	651
34.1	652	Users can directly access the AT command set of the NB-IoT module.
	653
	654	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/]]
	655
51.5	656
34.1	657	[[image:image-20220907154700-23.png]]
	658
	659
	660
51.5	661
44.1	662	= 4. Using the AT Commands =
34.1	663
51.5	664
44.1	665	== 4.1 Access AT Commands ==
34.1	666
51.5	667
34.1	668	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]]
	669
	670	AT+<CMD>? : Help on <CMD>
	671
	672	AT+<CMD> : Run <CMD>
	673
	674	AT+<CMD>=<value> : Set the value
	675
	676	AT+<CMD>=? : Get the value
	677
51.5	678
51.7	679	(% style="color:#037691" %)General Commands
34.1	680
	681	AT : Attention
	682
	683	AT? : Short Help
	684
	685	ATZ : MCU Reset
	686
	687	AT+TDC : Application Data Transmission Interval
	688
	689	AT+CFG : Print all configurations
	690
	691	AT+CFGMOD : Working mode selection
	692
	693	AT+INTMOD : Set the trigger interrupt mode
	694
	695	AT+5VT : Set extend the time of 5V power
	696
	697	AT+PRO : Choose agreement
	698
	699	AT+RXDL : Extend the sending and receiving time
	700
	701	AT+SERVADDR : Server Address
	702
	703	AT+TR : Get or Set record time"
	704
50.1	705	AT+APN : Get or set the APN
34.1	706
50.1	707	AT+FBAND : Get or Set whether to automatically modify the frequency band
	708
	709	AT+DNSCFG : Get or Set DNS Server
	710
	711	AT+GETSENSORVALUE : Returns the current sensor measurement
	712
34.1	713	AT+NOUD : Get or Set the number of data to be uploaded
	714
	715	AT+CDP : Read or Clear cached data
	716
	717	AT+TEMPALARM : Get or Set alarm of temp
	718
	719	AT+PHALARM : Get or Set alarm of PH
	720
	721	AT+ PHCAL : calibrate PH value
	722
	723
51.7	724	(% style="color:#037691" %)COAP Management
34.1	725
	726	AT+URI : Resource parameters
	727
51.5	728
51.7	729	(% style="color:#037691" %)UDP Management
34.1	730
	731	AT+CFM : Upload confirmation mode (only valid for UDP)
	732
51.5	733
51.7	734	(% style="color:#037691" %)MQTT Management
34.1	735
	736	AT+CLIENT : Get or Set MQTT client
	737
	738	AT+UNAME : Get or Set MQTT Username
	739
	740	AT+PWD : Get or Set MQTT password
	741
	742	AT+PUBTOPIC : Get or Set MQTT publish topic
	743
	744	AT+SUBTOPIC : Get or Set MQTT subscription topic
	745
51.5	746
51.7	747	(% style="color:#037691" %)Information
34.1	748
	749	AT+FDR : Factory Data Reset
	750
	751	AT+PWORD : Serial Access Password
	752
51.5	753
	754
44.1	755	= 5. FAQ =
34.1	756
51.5	757
44.1	758	== 5.1 How to Upgrade Firmware ==
34.1	759
51.5	760
34.1	761	User can upgrade the firmware for 1) bug fix, 2) new feature release.
	762
	763	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]]
	764
51.8	765	(% style="color:red" %)Notice, NSPH01 and LSPH01 share the same mother board. They use the same connection and method to update.
34.1	766
51.5	767
	768
44.1	769	== 5.2 Can I calibrate NSPH01 to different soil types? ==
34.1	770
51.5	771
34.1	772	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]].
	773
51.5	774
	775
44.1	776	= 6. Trouble Shooting =
34.1	777
51.5	778
44.1	779	== 6.1 Connection problem when uploading firmware ==
34.1	780
51.5	781
34.1	782	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]]
	783
51.5	784
	785
44.1	786	== 6.2 AT Command input doesn't work ==
34.1	787
	788
51.7	789	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	790
	791
	792
44.1	793	= 7. Order Info =
34.1	794
51.5	795
34.1	796	Part Number: NSPH01
	797
51.5	798
	799
44.1	800	= 8. Packing Info =
34.1	801
51.5	802
34.1	803	Package Includes:
	804
47.1	805	* NSPH01 NB-IoT pH Sensor x 1
34.1	806	* External antenna x 1
	807
	808	Dimension and weight:
	809
	810	* Size: 195 x 125 x 55 mm
	811	* Weight: 420g
	812
51.5	813
	814
44.1	815	= 9. Support =
34.1	816
51.5	817
34.1	818	* 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.
	819	* 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]]
	820
	821

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

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